v3.19.3
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