v3.6.0.2

Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2016

Summary of significant accounting policies

Schedule of estimated useful lives for property and equipment

Software		2 to 5 years
Computer equipment		3 to 5 years
Furniture, fixtures and office equipment		3 to 5 years
Leasehold improvements		The shorter of the estimated useful life or the remaining term of the agreements, generally ranging from 2 to 18 years

Schedule of weighted average assumptions used to calculate the grant date fair values of employee stock option grants

		2014
Expected term (years)			6.25
Expected volatility			48.6	%
Risk-free interest rate			1.8	%
Dividend yield			0	%

Summary of the entity's revenue by primary revenue source

		Year Ended December 31,
		2016			2015			2014
Revenue:
DAS		$	58,182		$	46,455		$	38,259
Military			39,975			19,898			4,486
Retail			26,636			31,763			40,336
Wholesale—Wi-Fi			22,221			21,923			15,209
Advertising and other			12,330			19,587			21,007
​	​	​	​	​	​	​	​	​	​	​
Total revenue		$	159,344		$	139,626		$	119,297
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

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Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ 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 (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Tabular disclosure of the useful life of property and equipment.

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