Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Sales Revenue Disaggregated by Sales Channel and Geographic Region (Details)

v3.20.4
Summary of Significant Accounting Policies - Sales Revenue Disaggregated by Sales Channel and Geographic Region (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation Of Revenue [Line Items]      
Total sales revenue $ 280,189 $ 340,546 $ 336,015
Business to Business | Domestic      
Disaggregation Of Revenue [Line Items]      
Total sales revenue 96,423 106,428 116,581
Business to Business | International      
Disaggregation Of Revenue [Line Items]      
Total sales revenue 62,147 77,960 77,333
Direct-to-Consumer | Domestic      
Disaggregation Of Revenue [Line Items]      
Total sales revenue $ 121,619 $ 156,158 $ 142,101