Derivatives - Total Net Fair Value of Derivatives (Details) - Fair value measurements on a recurring basis - Foreign currency exchange contracts - Not designated as hedging instrument - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Total Balance
Derivatives, Fair Value [Line Items]
Foreign currency exchange contracts	$ 396	$ 113
Level 1
Derivatives, Fair Value [Line Items]
Foreign currency exchange contracts	0	0
Level 2
Derivatives, Fair Value [Line Items]
Foreign currency exchange contracts	396	113
Level 3
Derivatives, Fair Value [Line Items]
Foreign currency exchange contracts	$ 0	$ 0