Income Taxes Income Tax by Jurisdiction (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ (69,850)	$ (3,150)	$ 67,300
Income (Loss) from Continuing Operations before Income Taxes, Foreign	11,620	(18,970)	2,300
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(58,230)	(22,120)	69,600
Current Federal Tax Expense (Benefit)	7,560	12,150	24,630
Current State and Local Tax Expense (Benefit)	1,920	1,080	3,440
Current Foreign Tax Expense (Benefit)	4,250	2,060	1,170
Current Income Tax Expense (Benefit)	13,730	15,290	29,240
Deferred Federal Income Tax Expense (Benefit)	(28,180)	(1,980)	(9,370)
Deferred State and Local Income Tax Expense (Benefit)	(2,550)	(1,530)	(40)
Deferred Foreign Income Tax Expense (Benefit)	(1,430)	(5,240)	2,880
Deferred Income Tax Expense (Benefit)	(32,160)	(8,750)	(6,530)
Income Tax Expense (Benefit), Continuing Operations	$ (18,430)	$ 6,540	$ 22,710