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Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]      
Unrecognized deferred tax liability $ 524    
Total unrecognized tax benefits 178 $ 774 $ 239
Unrecognized tax benefits affecting the company's effective income tax rate   748  
Unrecognized tax benefits, interest on income taxes accrued   235  
Foreign Tax Authority      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforwards, valuation allowance   10,100  
Operating loss carryforwards   43,800  
Increase in valuation allowance $ 1,500    
Operating loss carryforward, indefinite   30,600  
Operating loss carryforward, expiring   $ 13,200