7. Goodwill and Other Intangible Assets

The Company reports all of its goodwill in its Debit and Credit segment at March 31, 2020 and December 31, 2019. Goodwill is tested for impairment at least annually on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. The Company did not identify a triggering event requiring a quantitative test for impairment as of March 31, 2020. The implications of COVID-19, and a decline in the Company’s total fair value of invested capital and financial performance for reporting units with goodwill, could require the Company to perform a quantitative test for goodwill impairment in future quarters.

Intangible assets consist of customer relationships, technology and software, trademarks and non-compete agreements. Intangible amortization expense was $1,149 and $1,164 for the three months ended March 31, 2020 and 2019, respectively.

At March 31, 2020 and December 31, 2019, intangible assets, excluding goodwill, were comprised of the following:


		March 31, 2020						December 31, 2019
	Weighted Average			Accumulated		Net Book				Accumulated		Net Book
	Life (Years)	Cost		Amortization		Value		Cost		Amortization		Value

Customer relationships	17.2	$	55,454	$	(29,684)	$	25,770	$	55,454		(28,865)	$	26,589
Technology and software	8		7,101		(5,184)		1,917		7,101		(4,952)		2,149
Trademarks	8.7		3,330		(1,364)		1,966		3,330		(1,266)		2,064
Non-compete agreements	5		491		(491)		—		491		(491)		—
Intangible assets subject to amortization		$	66,376	$	(36,723)	$	29,653	$	66,376	$	(35,574)	$	30,802

The estimated future aggregate amortization expense for the identified amortizable intangibles noted above as of March 31, 2020 was as follows:


2020	$	3,446
2021		4,352
2022		3,867
2023		3,867
2024		3,530
Thereafter		10,591
	$	29,653