v3.19.2
Revenue - Disaggregation of Revenue by Geography (Parenthetical) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation Of Revenue [Line Items]        
Total revenue $ 388,021 $ 262,263 $ 708,447 $ 492,929
United States        
Disaggregation Of Revenue [Line Items]        
Total revenue $ 227,200 $ 165,900 $ 416,000 $ 326,900