Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Note 7.    Goodwill and Intangible Assets

Goodwill represents the excess of the purchase price of an acquired business over the estimated fair values of the underlying net tangible and intangible assets. Goodwill is allocated to the Company’s one reportable segment which is its only reporting unit. Goodwill consisted of the following:

	2019		2018
Balance at January 1,	$	166,129	$	166,678
Measurement period adjustments		—		(549	)
Balance at December 31,	$	166,129	$	166,129

During the year ended December 31, 2019, there were no changes to goodwill.

During the year ended December 31, 2018, the following key items impacted goodwill:

• The Company recorded measurement period adjustments to the preliminary purchase price allocation of the Blue Tree Acquisition of $393.

• The Company recorded measurement period adjustments to the preliminary purchase price allocation of the Inthinc Acquisition of $156.

Intangible assets, net consisted of the following:

		December 31, 2019							December 31, 2018
	Useful life (years)	Cost		Accumulated amortization			Net		Cost		Accumulated amortization			Net
Customer lists	5 - 15	$	113,357	$	(50,457	)	$	62,900	$	113,357	$	(39,966	)	$	73,391
Patents and technology	3 - 10		23,424		(13,044	)		10,380		23,424		(10,551	)		12,873
Trade names and trademarks	1 - 2		3,003		(3,003	)		—		3,003		(3,003	)		—
		$	139,784	$	(66,504	)	$	73,280	$	139,784	$	(53,520	)	$	86,264

At December 31, 2019, the weighted-average amortization period for the intangible assets was 10.5 years. At December 31, 2019, the weighted-average amortization periods for customer lists, patents and technology and trade names and trademarks were 10.9, 9.3 and 1.2 years, respectively.

Amortization expense for the years ended December 31, 2019, 2018 and 2017 was $12,985, $13,075 and $11,792, respectively.

Estimated future amortization expense for intangible assets is as follows:

	December 31,
	2019
2020		12,721
2021		12,112
2022		11,686
2023		11,408
2024		11,122
Thereafter		14,231
	$	73,280