Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current Income Tax Expense (Benefit), Continuing Operations
Federal	$ 5,037	$ (9,760)	$ 11,699
State	935	764	667
Foreign	29,264	34,742	29,228
Current income tax expense	35,236	25,746	41,594
Deferred Income Tax Expense (Benefit)
Federal	11,771	(24,445)	60,618
State	6,620	(12,760)	27,241
Foreign	3,447	1,401	8,365
Deferred taxes	21,838	(35,804)	96,224
Total provision (benefit) for income taxes	$ 57,074	$ (10,058)	$ 137,818