Intangible Assets

6 Months Ended

Jun. 30, 2021

Intangible Assets, Net (Excluding Goodwill) [Abstract]

The gross amount, accumulated amortization and net carrying amount of intangible assets were as follows:


		June 30, 2021				December 31, 2020
	Useful Life (Years)	Gross Amount		Accumulated Amortization		Net Carrying Amount		Gross Amount		Accumulated Amortization		Impairment		Net Carrying Amount

Customer relationships	5-18	$	113,576	$	(78,469)	$	35,107	$	116,101	$	(75,649)	$	(2,206)	$	38,246
Software/Technology	3-15	52,462		(25,137)		27,325		77,326		(23,519)		(25,874)		27,933
Covenants not to compete	2-5	12,667		(12,350)		317		12,833		(12,162)		(212)		459
Other	2-12	10,751		(8,892)		1,859		11,120		(8,614)		(502)		2,004
Total		$	189,456	$	(124,848)	$	64,608	$	217,380	$	(119,944)	$	(28,794)	$	68,642

Amortization expense for the three months ended June 30, 2021 and 2020 was approximately $2.5 million and $2.6 million, respectively.

Amortization expense for the six months ended June 30, 2021 and June 30, 2020 was $4.9 million and $5.9 million, respectively.

As described in Note 8-Goodwill, during the first quarter of 2020, there were negative market indicators that were determined to be triggering events indicating a potential impairment of certain long-lived assets within asset groups in the Services, International, and Products and Systems segments, as well as Corporate. The asset groups are groupings of assets and liabilities determined at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities. Recoverability testing indicated that certain intangible assets and right of use assets (See Note 13-Leases) were potentially impaired. For asset groups that required an impairment measurement, similar to the valuations performed to determine the goodwill impairment, the Company used income and market approaches to estimate the fair value of the long-lived assets, which requires significant judgment in evaluation of the useful lives of the assets, economic and industry trends, estimated future cash flows, discount rates, and other factors. The result of the analysis was an aggregate impairment charge of $28.8 million, which consisted of $25.9 million to software/technology, $2.2 million to customer relationships, $0.5 million to other intangibles and $0.2 million to covenants not to compete, all of which are in the Services reporting unit within the Services segment and are included in Impairment charges on the Unaudited Condensed Consolidated Statements of Income (Loss) for the six months ended June 30, 2020.