Summary of significant accounting policies - Segment and geographic information (Details) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2019
USD ($)
|
Jun. 30, 2018
USD ($)
|
Jun. 30, 2019
USD ($)
segment
|
Jun. 30, 2018
USD ($)
|
|
| Primary revenue source | ||||
| Number of reportable segment | segment | 1 | |||
| Revenue | $ 68,554 | $ 59,601 | $ 135,027 | $ 117,760 |
| DAS | ||||
| Primary revenue source | ||||
| Revenue | 27,622 | 21,885 | 51,717 | 45,530 |
| Military/multifamily | ||||
| Primary revenue source | ||||
| Revenue | 24,396 | 16,735 | 50,293 | 32,589 |
| Wholesale-Wi-Fi | ||||
| Primary revenue source | ||||
| Revenue | 10,718 | 13,530 | 21,738 | 24,679 |
| Retail | ||||
| Primary revenue source | ||||
| Revenue | 3,847 | 4,566 | 7,773 | 9,876 |
| Advertising and other | ||||
| Primary revenue source | ||||
| Revenue | $ 1,971 | $ 2,885 | $ 3,506 | $ 5,086 |