| **Acquisition (Details) - USD ($) $ in Thousands**                                                                         | 3 Months Ended |             |           |
|----------------------------------------------------------------------------------------------------------------------------|----------------|-------------|-----------|
||
| **Business Acquisition [Line Items]**                                                                                      |           |        |      |
| Purch Price Adj Disc Cash Flow                                                                                             | 10.00%         |        |      |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets                              | $ 1,700,000    |        |      |
| Conversion of Stock, Shares Issued                                                                                         | 0.158          |        |      |
| Business Acquisition, Equity Interest Issued or Issuable, Number of Shares                                                 | 39,000,000     |        |      |
| Document Period End Date                                                                                                   | Mar. 31,  2020 |        |      |
| Business Acquisition, Transaction Costs                                                                                    | $ 20,200       |        |      |
| Line of Credit Facility, Initial Borrowing Base                                                                            | 2,100,000      | $ 1,700,000 |      |
| Revolving Credit Facility Elected Commitment Amount                                                                        | 1,700,000      |        |      |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt | 555,500        |        |      |
| Stock Repurchase Program, Authorized Amount                                                                                | $ 525,000      |        | $ 200,000 |

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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.
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| - Definition
Line of Credit Facility, Initial Borrowing Base
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| - Definition
Purch Price Adj Disc Cash Flow
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Revolving Credit Facility Elected Commitment Amount
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| X                                                                                                                                                                                                                                                                                                                                                                                                   |
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| - Definition
Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares of equity interests issued or issuable to acquire entity.
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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| - Definition
Amount of long-term debt due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.
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| - Definition
Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.
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| X                                                                                                                                                                                                                                                                               |
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| - Definition
Amount of stock repurchase plan authorized.
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