v3.19.3

Summary of significant accounting policies - Segment and geographic information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) segment | Sep. 30, 2018 USD ($)
Primary revenue source |  |  |  |
Number of reportable segment | segment |  |  | 1 |
Revenue | $ 64,707 | $ 65,253 | $ 199,734 | $ 183,013
DAS |  |  |  |
Primary revenue source |  |  |  |
Revenue | 23,714 | 24,410 | 75,431 | 69,940
Military/multifamily |  |  |  |
Primary revenue source |  |  |  |
Revenue | 23,641 | 21,745 | 73,934 | 54,334
Wholesale-Wi-Fi |  |  |  |
Primary revenue source |  |  |  |
Revenue | 11,200 | 11,749 | 32,938 | 36,428
Retail |  |  |  |
Primary revenue source |  |  |  |
Revenue | 3,646 | 4,088 | 11,419 | 13,964
Advertising and other |  |  |  |
Primary revenue source |  |  |  |
Revenue | $ 2,506 | $ 3,261 | $ 6,012 | $ 8,347

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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