| **Schedule 1 - Condensed Parent Company Financial Statements (Debt Maturities Of Long-Term Debt) (Details) $ in Thousands** | Dec. 31, 2019 USD ($) |
|-----------------------------------------------------------------------------------------------------------------------------|-----------------------|
| **Debt Instrument [Line Items]**                                                                                            |                  |
| 2020                                                                                                                        | $ 105,051             |
| 2021                                                                                                                        | 58,252                |
| 2022                                                                                                                        | 29,980                |
| 2023                                                                                                                        | 17,072                |
| 2024                                                                                                                        | 15,968                |
| Thereafter                                                                                                                  | 2,851,077             |
| Parent Company [Member]                                                                                                     |                  |
| **Debt Instrument [Line Items]**                                                                                            |                  |
| 2020                                                                                                                        | 38,854                |
| 2021                                                                                                                        | 38,564                |
| 2022                                                                                                                        | 21,938                |
| Thereafter                                                                                                                  | $ 1,025,000           |

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.
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