Income Taxes Income Taxes - Deferred tax additional information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Deferred Tax Liabilities, Net	$ 19,916	$ 24,711
Deferred Tax Assets, Valuation Allowance	29,399	20,118
Domestic Tax Authority
Income Taxes [Line Items]
Deferred Tax Liabilities, Net	4,700	12,200
Deferred Tax Assets, Valuation Allowance	$ 18,600	10,400
Operating Loss Carryforwards, Expiration Date	Jan. 01, 2021
State and Local Jurisdiction
Income Taxes [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 12,400
Foreign Tax Authority
Income Taxes [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 10,800	9,700
Operating Loss Carryforwards, Expiration Date	Jan. 01, 2021
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	$ 30,200
Deferred Tax Assets, Net	$ 14,100	$ 7,700