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Income Taxes - Reconciliation of the Beginning and Ending Amount of Gross 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 $ 6,126 $ 4,950 $ 4,318
Increases for current year tax positions 965 839 637
Increases/(decreases) for prior year tax positions 106 337 (5)
Ending balance $ 7,197 $ 6,126 $ 4,950