Summary of significant accounting policies - Segment and geographic information (Details) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2019
USD ($)
|
Sep. 30, 2018
USD ($)
|
Sep. 30, 2019
USD ($)
segment
|
Sep. 30, 2018
USD ($)
|
|
| Primary revenue source | ||||
| Number of reportable segment | segment | 1 | |||
| Revenue | $ 64,707 | $ 65,253 | $ 199,734 | $ 183,013 |
| DAS | ||||
| Primary revenue source | ||||
| Revenue | 23,714 | 24,410 | 75,431 | 69,940 |
| Military/multifamily | ||||
| Primary revenue source | ||||
| Revenue | 23,641 | 21,745 | 73,934 | 54,334 |
| Wholesale-Wi-Fi | ||||
| Primary revenue source | ||||
| Revenue | 11,200 | 11,749 | 32,938 | 36,428 |
| Retail | ||||
| Primary revenue source | ||||
| Revenue | 3,646 | 4,088 | 11,419 | 13,964 |
| Advertising and other | ||||
| Primary revenue source | ||||
| Revenue | $ 2,506 | $ 3,261 | $ 6,012 | $ 8,347 |