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Net (loss) income per share attributable to common stockholders (Details) (USD $) In Thousands, except Share data, unless otherwise specified
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3 Months Ended |
12 Months Ended |
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Dec. 31, 2014
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Sep. 30, 2014
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Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Numerator: |
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| Net loss attributable to common stockholders, basic and diluted |
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$ (19,521)wifi_NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted |
$ (3,968)wifi_NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted |
$ 7,295wifi_NetIncomeLossAvailableToCommonStockholdersBasicAndDiluted |
| Denominator: |
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| Weighted Average Number of Shares Outstanding, Basic |
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35,753,000us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
35,578,000us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
34,774,000us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
| Effect of dilutive stock options |
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2,543,000wifi_IncrementalCommonSharesAttributableToStockOptions |
| Weighted average common stock, diluted |
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35,753,000us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
35,578,000us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
37,317,000us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
| Net (loss) income per share attributable to common stockholders: |
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| Basic (in dollars per share) |
$ (0.18)us-gaap_EarningsPerShareBasic |
$ (0.11)us-gaap_EarningsPerShareBasic |
$ (0.10)us-gaap_EarningsPerShareBasic |
$ (0.15)us-gaap_EarningsPerShareBasic |
$ (0.08)us-gaap_EarningsPerShareBasic |
$ 0.01us-gaap_EarningsPerShareBasic |
$ (0.01)us-gaap_EarningsPerShareBasic |
$ (0.03)us-gaap_EarningsPerShareBasic |
$ (0.55)us-gaap_EarningsPerShareBasic |
$ (0.11)us-gaap_EarningsPerShareBasic |
$ 0.21us-gaap_EarningsPerShareBasic |
| Diluted (in dollars per share) |
$ (0.18)us-gaap_EarningsPerShareDiluted |
$ (0.11)us-gaap_EarningsPerShareDiluted |
$ (0.10)us-gaap_EarningsPerShareDiluted |
$ (0.15)us-gaap_EarningsPerShareDiluted |
$ (0.08)us-gaap_EarningsPerShareDiluted |
$ 0.01us-gaap_EarningsPerShareDiluted |
$ (0.01)us-gaap_EarningsPerShareDiluted |
$ (0.03)us-gaap_EarningsPerShareDiluted |
$ (0.55)us-gaap_EarningsPerShareDiluted |
$ (0.11)us-gaap_EarningsPerShareDiluted |
$ 0.20us-gaap_EarningsPerShareDiluted |
| Options |
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| Anti-dilutive securities |
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| Anti-dilutive securities excluded from the computation of diluted net income per share |
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2,518,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = wifi_EmployeeAndNonemployeeStockOptionMember |