Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax expense provision
Federal	$ 451	$ 326	$ 483
State and local	1,798	1,659	1,692
Foreign	8,826	4,634	4,303
Total current	11,075	6,619	6,478
Deferred tax benefit
Federal	(4,416)	(3,620)	3,137
State and local	(1,156)	276	(5,431)
Foreign	4,388	(4,059)	(4,409)
Total deferred	(1,184)	(7,403)	(6,703)
Total provision (benefit)	$ 9,891	$ (784)	$ (225)