v3.10.0.1

Summary of significant accounting policies - Principles of consolidation (Details)	Sep. 30, 2018
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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- Definition

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