Summary of significant accounting policies (Details) - USD ($) $ in Thousands |
Aug. 04, 2015 |
Jun. 30, 2015 |
|---|---|---|
| Concourse Communications Detroit, LLC | ||
| Principles of consolidation | ||
| Percentage of ownership in subsidiaries | 70.00% | |
| Concourse Communications Detroit, LLC | Subsequent Event | ||
| Principles of consolidation | ||
| Percentage of additional ownership in Subsidiary acquired | 30.00% | |
| Business Combination, Consideration Transferred | $ 1,150 | |
| Chicago Concourse Development Group, LLC | ||
| Principles of consolidation | ||
| Percentage of ownership in subsidiaries | 70.00% | |
| Boingo Holding Participacoes Ltda. | ||
| Principles of consolidation | ||
| Percentage of ownership in subsidiaries | 75.00% |