v3.10.0.1

Summary of significant accounting policies - Terms of contracts (Details) | 6 Months Ended
--- | ---
Jun. 30, 2018
DAS license agreements | Minimum |
Revenue recognition |
Initial term of the arrangement | 5 years
DAS license agreements | Maximum |
Revenue recognition |
Initial term of the arrangement | 20 years
Wholesale-Wi-Fi | Minimum |
Revenue recognition |
Initial term of the arrangement | 1 year
Wholesale-Wi-Fi | Maximum |
Revenue recognition |
Initial term of the arrangement | 3 years

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

X
- Definition Represents the term of the arrangement that is used as a basis for recognizing certain revenues. + References No definition available. + Details
Name: | wifi_RevenueRecognitionPeriod
Namespace Prefix: | wifi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=wifi_DasPartnerArrangementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=wifi_WholesalePartnerArrangementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |