|**Long-Term Debt And Loans Payable**              | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       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|**Long-Term Debt And Loans Payable [Abstract]**   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Long-Term Debt And Loans Payable                  | Note 11 –Long-term Debt and Loans PayableLong-term Debt –The consolidated statements of capitalization provide a summary of long-term debt as of December 31, 2019 and 2018.  The supplemental indentures with respect to specific issues of the first mortgage bonds restrict the ability of Aqua Pennsylvania and other operating subsidiaries of the Company to declare dividends, in cash or property, or repurchase or otherwise acquire the stock of these companies.  Loan agreements for Aqua Pennsylvania and other operating subsidiaries of the Company have restrictions on minimum net assets.  As of December 31, 2019, restrictions on the net assets of the Company were $2,450,381of the total $3,880,860in net assets.  Included in this amount were restrictions on Aqua Pennsylvania’s net assets of $1,332,017of their total net assets of $1,775,110.  As of December 31, 2019, $1,591,800of Aqua Pennsylvania’s retained earnings of $1,611,800and $221,466of the retained earnings of $270,192of other subsidiaries were free of these restrictions.  Some supplemental indentures also prohibit Aqua Pennsylvania and some other subsidiaries of the Company from making loans to, or purchasing the stock of, the Company.Sinking fund payments are required by the terms of specific issues of long-term debt.  Excluding amounts due under the Company’s revolving credit agreement, the future sinking fund payments and debt maturities of the Company’s long-term debt are as follows:Interest Rate Range20202021202220232024Thereafter0.00% to0.99%$670$460$461$461$252$1,1701.00% to1.99%1,0169789578357646,1832.00% to2.99%1,8631,9131,9642,0171,6196,2983.00% to3.99%91,52441,28724,6222,0651,7671,133,7764.00% to4.99%29216894991031,554,0355.00% to5.99%6,1916,21578710,81110,61176,9956.00% to6.99%-----31,0007.00% to7.99%574666374--29,1378.00% to8.99%5211,6657217848524839.00% to9.99%2,4004,900---12,000Total$105,051$58,252$29,980$17,072$15,968$2,851,077In December 2019, Aqua Pennsylvania issued $125,000of first mortgage bonds, of which $75,000is due in2052and $50,000is due in2053with interest rates of3.39% and3.41%, respectively.  The proceeds from these bonds were used to repay existing indebtedness and for general corporate purposes.In May 2019, Aqua Pennsylvania issued $125,000of first mortgage bonds, of which $75,000is due in2049, $25,000is due in2054, and $25,000is due in2059with interest rates of4.02%,4.07%, and4.12%, respectively.  The proceeds from these bonds were used to repay existing indebtedness and for general corporate purposes.  Additionally, in September 2019, Aqua Pennsylvania issued $175,000of first mortgage bonds, of which $50,000is due in2054, $75,000is due in2058, and $50,000is due in2059with interest rates of4.09%,4.13%, and4.14%, respectively.On May 18, 2019, the Company redeemed $313,500of the Company’s outstanding notes (the “Company Debt Refinancing”) that had maturities ranging from2019-2037and interest rates ranging from3.57% -5.83%.  Additionally, the Company Debt Refinancing was subject to a make whole payment of $25,237, and $18,528of this payment was expensed, and is presented in the consolidated statements of net income on the line item “loss on debt extinguishment.”  The balance of the payment, or $6,709, was deferred, as a regulatory asset, as it represents an amount by which the Company expects to receive prospective rate recovery.On April 26, 2019, the Company issued $900,000of long-term debt (the “Senior Notes”), less expenses of $7,931, of which $400,000is due in2029, and $500,000is due in2049with interest rates of3.566% and4.276%, respectively.  The Company used the net proceeds from the issuance of Senior Notes to (1) secure $436,000of funding for the Peoples Gas Acquisition, (2) complete the redemption of $313,500aggregate principal amount of certain of the Company’s outstanding notes noted below, (3) pay related costs and expenses, and (4) for general corporate purposes.In November 2018, Aqua Pennsylvania issued $125,000of first mortgage bonds, of which $65,000is due in2047, $30,000is due in2052, and $30,000is due in2053with interest rates of4.44%,4.49%, and4.51%, respectively.  The proceeds from these bonds were used to repay existing indebtedness and for general corporate purposes.In June 2018, Aqua Pennsylvania issued $100,000of first mortgage bonds, of which $25,000is due in2042, $10,000is due in2045, and $65,000is due in2048with interest rates of3.99%,4.04%, and4.09%, respectively.  The proceeds from these bonds were used to repay existing indebtedness and for general corporate purposes.In July 2018, Aqua Pennsylvania redeemed $49,660of tax-exempt bonds at5.25% that were originally maturing in2042and2043, respectively.As of December 31, 2019 and 2018, the Company did not have any funds restricted for construction activity.The weighted average cost of long-term debt at December 31, 2019 and 2018 was4.09% and4.23%, respectively.  The weighted average cost of fixed rate long-term debt at December 31, 2019 and 2018 was4.09% and4.31%, respectively.In December 2018, the Company entered into afive year$550,000unsecured revolving credit facility, which replaced the Company’s priorfive year$500,000unsecured revolving credit facility.  The Company’s new unsecured revolving credit facility will be used to repay all indebtedness and fees under our prior unsecured revolving credit facility, and for other general corporate purposes.  Additionally, the facility expands by $150,000of capacity, upon closing of the Peoples Gas Acquisition, which amount will be available to repay certain outstanding indebtedness and fees to close an existing credit facility of Peoples and for general corporate purposes.  Further, at the Company’s request this facility expands by an additional amount of up to $300,000, upon the closing of the Peoples Gas Acquisition.  The facility includes a $25,000sublimit for daily demand loans.  Funds borrowed under this facility are classified as long-term debt and are used to provide working capital as well as support for letters of credit for insurance policies and other financing arrangements.  As of December 31, 2019, the Company has the following sublimits and available capacity under the credit facility:  $50,000letter of credit sublimit, $32,876of letters of credit available capacity, $0borrowed under the swing-line commitment, and $0 of funds borrowed under the agreement.  Interest under this facility is based at the Company’s option, on the prime rate, an adjusted Euro-Rate, an adjusted federal funds rate or at rates offered by the banks.  A facility fee is charged on the total commitment amount of the agreement.  Under these facilities the average cost of borrowings was3.55% and2.92%, and the average borrowing was $102,973and $207,277, during 2019 and 2018, respectively.The Company is obligated to comply with covenants under some of its loan and debt agreements.  These covenants contain a number of restrictive financial covenants, which among other things limit, subject to specific exceptions, the Company’s ratio of consolidated total indebtedness to consolidated total capitalization, and require a minimum level of earnings coverage over interest expense.  During 2019, the Company was in compliance with its debt covenants under its loan and debt agreements.  Failure to comply with the Company’s debt covenants could result in an event of default, which could result in the Company being required to repay or finance its borrowings before their due date, possibly limiting the Company’s future borrowings, and increasing its borrowing costs.Loans Payable –In November 2019, Aqua Pennsylvania renewed its $100,000364-day unsecured revolving credit facility with four banks.  The funds borrowed under this agreement are classified as loans payable and used to provide working capital.  As of December 31, 2019 and 2018, funds borrowed under the agreement were $25,724and $15,449, respectively.  Interest under this facility is based, at the borrower’s option, on the prime rate, an adjusted federal funds rate, an adjusted London Interbank Offered Rate corresponding to the interest period selected, an adjusted Euro-Rate corresponding to the interest period selected or at rates offered by the banks.  This agreement restricts short-term borrowings of Aqua Pennsylvania.  A commitment fee of0.05% is charged on the total commitment amount of Aqua Pennsylvania’s revolving credit agreement.  The average cost of borrowing under the facility was3.12% and2.68%, and the average borrowing was $21,871and $22,056, during 2019 and 2018, respectively.  The maximum amount outstanding at the end of any one month was $39,930and $45,000in 2019 and 2018, respectively.At December 31, 2019 and 2018, the Company had other combined short-term lines of credit of $35,500.  Funds borrowed under these lines are classified as loans payable and are used to provide working capital.  As of December 31, 2019 and 2018, funds borrowed under the short-term lines of credit were $0, respectively.  The average borrowing under the lines was $0during 2019 and 2018, respectively.  The maximum amount outstanding at the end of any one month was $0in 2019 and 2018, respectively.  Interest under the lines is based at the Company’s option, depending on the line, on the prime rate, an adjusted Euro-Rate, an adjusted federal funds rate or at rates offered by the banks.  The average cost of borrowings under all lines during 2019 and 2018 was3.12% and2.68%, respectively.Interest Income and Expense–Interest income of $25,406, $152, and $202was recognized for the years ended December 31, 2019, 2018, and 2017, respectively.  Interest expense was $125,383, $99,054, and $88,543in 2019, 2018, and 2017, including amounts capitalized for borrowed funds of $4,231$3,332, and $3,578, respectively.Unsecured Bridge Loan Commitment– On October 22, 2018, the Company obtained the Bridge Commitment from certain banks to provide senior unsecured bridge loans in an aggregate amount of up to $5,100,000to, among other things, backstop the Peoples Gas Acquisition purchase price and the refinancing of certain debt of the Company and of Peoples.  As of December 31, 2019, the Company had terminated $4,350,000of commitments under the Bridge Commitment in connection with, among other things, the replacement of the Company’s unsecured revolving credit facility, and the issuances of common stock, tangible equity units, and senior notes in April 2019.Interest Rate Swap Agreements– In October 2018, the Company entered into interest rate swap agreements to mitigate interest rate risk associated with an anticipated $850,000of debt issuances to fund a portion of the Peoples Gas Acquisition and refinance a portion of the Company’s borrowings.  On April 24, 2019, the Company settled the interest rate swap agreements upon issuance of $900,000of long-term debt to be used to finance a portion of the purchase price of the Peoples Gas Acquisition and redeem $313,500of the Company’s existing debt.  The settlement resulted in a payment by the Company of $83,520.The interest rate swaps did not qualify for hedge accounting and any changes in the fair value of the swaps was included in our earnings.  The interest rate swaps were classified as financial derivatives used for non-trading activities.  Other than the interest rate swaps, the Company has no other derivative instruments.  The Company recorded the fair value of the interest rate swaps by discounting the future net cash flows associated with the debt issuance and recognized either an asset or liability at the balance sheet date.The following table provides a summary of the amounts recognized in earnings for our interest rate swap agreements:Amount of Gain (Loss) Recognized in Income on DerivativesYears Ended December 31,Location of Gain (Loss) Recognized20192018Derivatives not designated as hedging instrument:Interest rate swapsOther (expense) income$(23,742)$(59,779)
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Interest Rate Range                               |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|0.00% to0.99%                                     | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|1.00% to1.99%                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|2.00% to2.99%                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|3.00% to3.99%                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|4.00% to4.99%                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    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