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Income Taxes - Changes to Gross Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Changes to gross unrecognized tax benefits:      
Balance at beginning of period $ 3,001 $ 3,020 $ 4,094
Additions as a result of tax provisions taken during the current year 149 226 274
Foreign currency translation 0   20
Foreign currency translation   (13)  
Lapse in statute of limitations 0 0 (51)
Settlements 0 (232) 0
Other 0 0 (1,317)
Balance at end of period $ 3,150 $ 3,001 $ 3,020