Common Stock and Stockholders' Equity - Compensation Costs (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
Compensation costs charged as an expense | ||||
Stock-based compensation | $ 17,368 | $ 11,060 | $ 30,891 | $ 18,891 |
Administrative And Marketing | ||||
Compensation costs charged as an expense | ||||
Stock-based compensation | 1,317 | 569 | 2,138 | 972 |
Sales | ||||
Compensation costs charged as an expense | ||||
Stock-based compensation | 2,528 | 2,002 | 4,658 | 3,576 |
Technology And Development | ||||
Compensation costs charged as an expense | ||||
Stock-based compensation | 2,141 | 1,664 | 4,039 | 2,878 |
General and administrative expenses | ||||
Compensation costs charged as an expense | ||||
Stock-based compensation | $ 11,382 | $ 6,825 | $ 20,056 | $ 11,465 |