Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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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%