Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes - Additional Information (Details)

v3.20.4
Income Taxes Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Tax Credit Carryforward [Line Items]      
Income Tax Examination, Penalties and Interest Accrued $ 600 $ 900  
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 7,507 $ 1,239 $ 5,727
Domestic Tax Authority [Member]      
Tax Credit Carryforward [Line Items]      
Operating Loss Carryforwards 281,300    
Tax Credit Carryforward, Amount 49,000    
State and Local Jurisdiction [Member]      
Tax Credit Carryforward [Line Items]      
Operating Loss Carryforwards 78,700    
Tax Credit Carryforward, Amount 90,100    
Foreign Tax Authority [Member]      
Tax Credit Carryforward [Line Items]      
Operating Loss Carryforwards 4,400    
Tax Credit Carryforward, Amount 1,900    
Deferred Tax Assets, Other Tax Carryforwards $ 5,800