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Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning balance $ 46,032 $ 43,687 $ 40,842
Increases related to tax positions during a prior year 3,448 3,953 5,285
Decreases related to tax positions taken during a prior year (5,511) (244) 0
Increases related to tax positions taken in the current year 4,675 4,264 3,991
Settlements 0 (5,628) (5,831)
Decreases related to expiration of statute of limitations (9,117) 0 (600)
Ending balance $ 39,527 $ 46,032 $ 43,687