Property and equipment- Depreciation and amortization (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Depreciation and amortization | ||
| Total depreciation and amortization of property and equipment | $ 14,985 | $ 10,308 |
| Network access | ||
| Depreciation and amortization | ||
| Total depreciation and amortization of property and equipment | 8,375 | 5,257 |
| Network operations | ||
| Depreciation and amortization | ||
| Total depreciation and amortization of property and equipment | 4,155 | 3,195 |
| Development and technology | ||
| Depreciation and amortization | ||
| Total depreciation and amortization of property and equipment | 2,195 | 1,602 |
| General and administrative | ||
| Depreciation and amortization | ||
| Total depreciation and amortization of property and equipment | $ 260 | $ 254 |