v3.21.1

Summary of significant accounting policies - Principles of consolidation (Details) | Mar. 31, 2021
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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%

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