Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Summary of Significant Accounting Policies - Breakdown of the Company Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Concentration Risk [Line Items]                      
Revenues $ 86,531 $ 95,291 $ 97,238 $ 79,051 $ 63,787 $ 69,030 $ 64,121 $ 52,500 $ 358,111 $ 249,438 $ 202,829
U.S. revenue                      
Concentration Risk [Line Items]                      
Revenues                 280,778 193,919 152,723
Non-U.S. revenue                      
Concentration Risk [Line Items]                      
Revenues                 $ 77,333 $ 55,519 $ 50,106