Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Breakdown of the Company Revenue (Details)

v3.20.4
Summary of Significant Accounting Policies - Breakdown of the Company Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Concentration Risk [Line Items]                      
Revenues $ 73,978 $ 74,329 $ 71,691 $ 88,489 $ 78,917 $ 91,761 $ 101,063 $ 90,202 $ 308,487 $ 361,943 $ 358,111
U.S. revenue                      
Concentration Risk [Line Items]                      
Revenues                 246,340 283,983 280,778
Non-U.S. revenue                      
Concentration Risk [Line Items]                      
Revenues                 $ 62,147 $ 77,960 $ 77,333