Goodwill and Intangible Assets, Net - Narrative (Details) - USD ($)	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0
Amortization	4,575,000	4,300,000
Impairment of long-lived assets	0	$ 0
Alarm.com
Finite-Lived Intangible Assets [Line Items]
Intangible assets written off	$ 700,000

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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