v2.4.1.9

Fair value measurement (Details 2) (Contingent consideration, AWG and Endeka, USD $) In Thousands, unless otherwise specified | 12 Months Ended
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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 | $ 1,942 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember |
Contingent consideration for acquisition of businesses |  | 2,309 us-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 | $ 131 us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue / us-gaap_BusinessAcquisitionAxis = wifi_EndekaGroupIncAndElectronicMediaSystemsIncAndAdvancedWirelessGroupLLCMember / us-gaap_FairValueByLiabilityClassAxis = wifi_ContingentConsiderationArrangementMember | $ 1,942 us-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 + Details
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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 + Details
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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 + Details
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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 + Details
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