Income Taxes (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal income tax expense (benefit)	$ (6,536)	$ 11,859	$ 23,866
U.S. state income taxes, net of federal income tax benefit	(1,589)	(274)	566
U.S. other domestic deductions and credits	(3,435)	(1,322)	(2,407)
Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential and Repatriation of Foreign Earnings	(9,450)	(9,550)	(5,394)
Uncertain tax position contingencies and settlements	289	310	(1,180)
Changes in realization on beginning of the year deferred tax assets	(370)	2,343	(6,937)
U.S. non-deductible expenses	2,363	2,554	1,128
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount	0	1,643	(11,686)
Effective Income Tax Rate Reconciliation, Net Operating Loss Carryback, Amount	(2,696)	0	0
State deferred tax rate change	(41)	(3,353)	0
Effective Income Tax Rate Reconciliation Foreign derived intangible income deduction	0	0	(2,366)
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount	(214)	(3,064)	(736)
Other, net	0	(32)	(143)
Total income tax expense from continuing operations	$ (2,779)	$ 20,214	$ 5,499
Annual effective income tax rate	8.90%	35.80%	4.80%
International	$ 36,151	$ 70,405	$ 85,368
Current Foreign Tax Expense (Benefit)	18,900	26,300
Differences on international earnings and remittances	9,500	9,600
U.S.	(67,276)	(13,934)	$ 28,281
Income Tax Expense (Benefit), Increase (Decrease) From Prior Year	$ 21,600	$ 6,100