v3.19.3

Contract assets and contract liabilities (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Contract assets, net
Balance at December 31, 2018		$ 468
Balance at September 30, 2019	$ 784	784
Change		316
Contract liabilities, net
Balance at December 31, 2018		217,733
Balance at September 30, 2019	236,111	236,111
Change		18,378
Contract liability and performance obligations included in revenue
Amounts included in the beginning of period contract liability balance	21,801	73,301
Amounts associated with performance obligations satisfied in previous periods	40	$ 341
Revenue performance obligations
Practical expedient of remaining performance obligations		true
DAS
Revenue performance obligations
Remaining service performance obligations	$ 219,218	$ 219,218
DAS | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01 | Maximum
Revenue performance obligations
Remaining duration of contracts	15 years	15 years
Wholesale-Wi-Fi
Revenue performance obligations
Remaining service performance obligations	$ 11,379	$ 11,379
Wholesale-Wi-Fi | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01 | Maximum
Revenue performance obligations
Remaining duration of contracts	15 years	15 years

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