The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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

- 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

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of options outstanding, including both vested and non-vested options.

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- 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

- 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

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=wifi_Plan2011Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=wifi_EmployeeAndNonemployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=wifi_Plan2001Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Stock incentive plans (Details) - shares	12 Months Ended	58 Months Ended
Stock incentive plans (Details) - shares	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Stock incentive plans
Number of stock options granted	0
Number of stock options outstanding	3,748,000	3,748,000	4,341,000
RSU
Stock incentive plans
Number of RSUs granted (in shares)	1,472,000
2011 Plan
Stock incentive plans
Common stock shares reserved for issuance	10,324,899	10,324,899
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
Number of stock options outstanding	2,528,000	2,528,000	2,816,000
2011 Plan \| Stock options
Stock incentive plans
Number of stock options granted		5,229,486
2011 Plan \| RSU
Stock incentive plans
Number of RSUs granted (in shares)		3,896,251
2001 Plan
Stock incentive plans
Number of stock options outstanding	1,220,000	1,220,000	1,525,000
2001 Plan \| Stock options
Stock incentive plans
Number of stock options outstanding	1,220,562	1,220,562