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Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Gain Contingencies [Line Items]      
Allowance for credit loss $ 39,000   $ 35,000
Decrease in retained earnings $ (1,249,809)   $ (1,700,912)
Retained Earnings | Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment      
Gain Contingencies [Line Items]      
Allowance for credit loss   $ 2,000  
Decrease in retained earnings   $ 2,000