Other Income (Expense), Net and Loss on Sale of Argentina Subsidiary (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 07, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain (loss) on foreign currency exchange contracts		$ 689	$ (72)	$ 2,177	$ (523)
Net gain (loss) on foreign currency exchange transactions		(855)	(1,525)	(2,932)	(865)
Other income (expense)		9	(49)	604	125
Other income (expense), net		(157)	(1,646)	(151)	(1,263)
Argentina Subsidiary
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on sale of Ohio call center	$ 6,100	$ 6,050	$ 0	$ 6,050	$ 0