v2.4.1.9

Fair value measurement (Details 2) (Contingent consideration, AWG and Endeka, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Contingent consideration | AWG and Endeka
Reconciliation between the beginning and ending balances related to the fair value of contingent consideration
Balance at the beginning of the period	$ 1,942us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember
Contingent consideration for acquisition of businesses		2,309us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember
Payment of contingent consideration	(1,000)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember
Change in fair value	(811)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember	(367)us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember
Balance at the end of the period	$ 131us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember	$ 1,942us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember

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- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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