v2.4.0.8

Stock incentive plans (Details) | 9 Months Ended
--- | ---
Sep. 30, 2013
2011 Plan |
Stock incentive plans |
Common stock shares reserved for issuance | 7,108,013
Annual percentage increase alternative, increase in common stock reserved for issuance as a percentage of common stock outstanding | 4.50%
Annual fixed increase alternative, increase in shares of common stock reserved for issuance (in shares) | 3,000,000
2001 Plan |
Stock incentive plans |
Number of shares available for grant (in shares) | 0

X
- Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Under the fixed increase alternative, represents the potential annual increase in shares of common stock reserved for issuance as share-based compensation. + References No definition available. + Details
Name: | wifi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesThatMayBeAuthorizedAnnually
Namespace Prefix: | wifi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Under the automatic percentage increase alternative, represents the potential annual increase in common stock reserved for issuance as share-based compensation, expressed as a percentage of common stock outstanding at the beginning of each fiscal year. + References No definition available. + Details
Name: | wifi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesThatMayBeAuthorizedAnnuallyPercentage
Namespace Prefix: | wifi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration