Income Taxes (Components of Provision (Benefit) for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current provision:
State	$ 543	$ 753	$ 5,520
Foreign	22,907	20,638	18,150
Total current	23,450	21,391	23,670
Deferred provision (benefit) for taxes:
Federal	20	(7,552)	(3,306)
State	(2,730)	(4,684)	1,952
Foreign	(9,516)	(59,956)	13,138
Change in valuation allowance	3,716	9,005	4,151
Total deferred	(8,510)	(63,187)	15,935
Total provision (benefit) for income taxes	$ 14,940	$ (41,796)	$ 39,605