Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in goodwill by reportable segment are outlined below (in thousands):

	Alarm.com		Other		Total
Balance as of January 1, 2017	$	24,723	$	—	$	24,723
Goodwill acquired	38,868		—		38,868
Balance as of December 31, 2017	63,591		—		63,591
Goodwill acquired	—		—		—
Balance as of December 31, 2018	$	63,591	$	—	$	63,591

Schedule of Intangible Assets

The following tables reflect the weighted-average remaining life and carrying value of finite-lived intangible assets (in thousands):

	December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted- Average Remaining Life
Customer relationships	$	103,926	$	(26,662	)	$	77,264	9.9
Developed technology	13,959		(12,281		)	1,678		2.1
Trade name	1,084		(959		)	125		2.4
Other	234		(234		)	—		—
Total intangible assets	$	119,203	$	(40,136	)	$	79,067

	December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted- Average Remaining Life
Customer relationships	$	103,926	$	(15,400	)	$	88,526	10.8
Developed technology	13,959		(8,427		)	5,532		2.1
Trade name	1,084		(856		)	228		3.3
Other	234		(234		)	—		—
Total intangible assets	$	119,203	$	(24,917	)	$	94,286

The following table reflects changes in the net carrying amount of the components of intangible assets (in thousands):

	Customer Relationships			Developed Technology			Trade Name			Total
Balance as of January 1, 2017	$	3,363		$	1,048		$	157		$	4,568
Intangible assets acquired	93,260			8,570			170			102,000
Amortization	(8,097		)	(4,086		)	(99		)	(12,282		)
Balance as of December 31, 2017	88,526			5,532			228			94,286
Amortization	(11,262		)	(3,854		)	(103		)	(15,219		)
Balance as of December 31, 2018	$	77,264		$	1,678		$	125		$	79,067

Schedule of Future Estimated Amortization Expense

The following table reflects the future estimated amortization expense for intangible assets (in thousands):

Year Ended December 31,	Amortization
2019	$	13,644
2020	12,217
2021	11,062
2022	9,371
2023	7,842
2024 and thereafter	24,931
Total future amortization expense	$	79,067