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Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Amortization of deferred subscriber acquisition revenue	$ 41,000	$ 30,000	$ 77,888	$ 59,017
Revenue	1,304,417	1,331,387	2,609,121	2,701,139
Security and Fire Safety Systems
Disaggregation of Revenue [Line Items]
Revenue	178,000	259,000	381,000	553,000
Cost of Revenue	$ 147,000	$ 191,000	$ 307,000	$ 403,000

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