Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Line Items]
Foreign earnings before tax	$ 36,151	$ 70,405	$ 85,368
Differences on international earnings and remittances	9,500	9,600
Total international income tax expense	19,216	23,775	17,127
Operating loss carryforwards	101,022	85,378
Valuation Allowance	140,615	127,074	137,500
Interest and penalties recognized	200	300	200
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1,400	1,200	$ 900
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	600
Current Foreign Tax Expense (Benefit)	18,900	26,300
International operations
Income Tax Disclosure [Line Items]
Operating loss carryforwards	75,800
Operating loss carryforwards not subject to expiration	65,300
Operating losses subject to expiration	10,500
U.S. state
Income Tax Disclosure [Line Items]
Operating loss carryforwards	17,100
United States
Income Tax Disclosure [Line Items]
Differences on international earnings and remittances	$ 100	$ 1,000