Income Taxes Income Tax by Jurisdiction (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ (134,630)	$ 52,190	$ 64,670
Income (Loss) from Continuing Operations before Income Taxes, Foreign	31,920	26,070	27,690
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(102,710)	78,260	92,360
Current Federal Tax Expense (Benefit)	200	3,530	4,410
Current State and Local Tax Expense (Benefit)	810	1,280	2,060
Current Foreign Tax Expense (Benefit)	7,750	7,070	6,200
Current Income Tax Expense (Benefit)	8,760	11,880	12,670
Deferred Federal Income Tax Expense (Benefit)	(16,900)	4,890	4,570
Deferred State and Local Income Tax Expense (Benefit)	(4,430)	500	1,310
Deferred Foreign Income Tax Expense (Benefit)	(10,380)	(950)	100
Deferred Income Tax Expense (Benefit)	(31,710)	4,440	5,980
Income Tax Expense (Benefit), Continuing Operations	$ (22,950)	$ 16,320	$ 18,650