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Long-Term Debt - Effects of Interest Rate Swap and Cap Agreements (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of unrealized gains (losses) in OCI on interest rate cap agreements | $ 7,155 | $ (16,346) | $ 1,151
Cash Flow Hedging |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of unrealized gains (losses) in OCI on interest rate cap agreements | 7,155 | (16,346) | 1,151
Reclassification from accumulated other comprehensive income into net income | 4,133 | 5,313 | 6,377
Cash Flow Hedging | Related income tax benefit (expense) |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of unrealized gains (losses) in OCI on interest rate cap agreements | (2,377) | 5,435 | (415)
Reclassification from accumulated other comprehensive income into net income | (1,376) | (1,768) | (2,214)
Cash Flow Hedging | Interest rate cap agreements | Debt Expense |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Amount of unrealized gains (losses) in OCI on interest rate cap agreements | 9,532 | (21,781) | 1,566
Reclassification from accumulated other comprehensive income into net income | $ 5,509 | $ 7,081 | $ 8,591

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