v3.19.3
Stock incentive plans - Compensation expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Recognized stock-based compensation expense        
Total stock-based compensation $ 2,054 $ 3,155 $ 6,434 $ 9,227
Stock-based compensation expense capitalized 224 208 689 600
Network operations        
Recognized stock-based compensation expense        
Total stock-based compensation 387 549 1,241 1,602
Development and technology        
Recognized stock-based compensation expense        
Total stock-based compensation 325 323 962 915
Selling and marketing        
Recognized stock-based compensation expense        
Total stock-based compensation 578 511 1,655 1,377
General and administrative        
Recognized stock-based compensation expense        
Total stock-based compensation $ 764 $ 1,772 $ 2,576 $ 5,333