Intangible Assets, Net

9 Months Ended

Sep. 26, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

The cost and accumulated amortization values of our intangible assets were as follows:


	September 26, 2020
(amounts in thousands)	Cost		Accumulated Amortization		Net Book Value
Customer relationships and agreements	$	149,598	$	(62,659)	$	86,939
Software	102,961		(23,002)		79,959
Trademarks and trade names	57,881		(8,801)		49,080
Patents, licenses and rights	45,442		(17,741)		27,701
Total amortizable intangibles	$	355,882	$	(112,203)	$	243,679


	December 31, 2019
(amounts in thousands)	Cost		Accumulated Amortization		Net Book Value
Customer relationships and agreements	$	151,540	$	(57,326)	$	94,214
Software	92,821		(18,222)		74,599
Trademarks and trade names	58,088		(7,512)		50,576
Patents, licenses and rights	45,392		(14,454)		30,938
Total amortizable intangibles	$	347,841	$	(97,514)	$	250,327

Through September 26, 2020, we have capitalized software costs of $70.5 million related to the application development stage of our global ERP system implementation, including $13.6 million during the nine months ended September 26, 2020. As of September 26, 2020, we have placed $52.0 million in service and are amortizing the cost of our global ERP system over its estimated useful life. In the third quarter 2020, we reduced the estimated useful life of our initial ERP instance from 15 years to 10 years to align with our current plans for our future global ERP system. In March 2020, we impaired $3.4 million of capitalized software due to delays in implementation of certain ERP modules and the uncertainty of its future.

Intangible assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of such assets may not be recoverable. Intangible assets that become fully amortized are removed from the accounts in the period that they become fully amortized. Amortization expense was recorded as follows:


	Three Months Ended				Nine Months Ended
(amounts in thousands)	September 26, 2020		September 28, 2019		September 26, 2020		September 28, 2019
Amortization expense	$	7,098	$	8,764	$	20,345	$	23,557