v3.19.2
Stock incentive plans - Compensation expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Recognized stock-based compensation expense        
Total stock-based compensation $ 2,036 $ 2,946 $ 4,380 $ 6,072
Stock-based compensation expense capitalized 235 206 465 392
Network operations        
Recognized stock-based compensation expense        
Total stock-based compensation 348 516 854 1,053
Development and technology        
Recognized stock-based compensation expense        
Total stock-based compensation 334 314 637 592
Selling and marketing        
Recognized stock-based compensation expense        
Total stock-based compensation 548 393 1,077 866
General and administrative        
Recognized stock-based compensation expense        
Total stock-based compensation $ 806 $ 1,723 $ 1,812 $ 3,561