Intangible assets are amortized over their estimated useful lives on a straight-line basis. Useful lives range from two to eighteen years. The Company periodically reviews, and adjusts, if necessary, the estimated useful lives of its intangible assets and reviews such assets or asset groups for impairment whenever events or changes in circumstances indicate that the carrying value of the assets or asset groups may not be recoverable. If an intangible asset or asset group is considered to be impaired, the amount of the impairment will equal the excess of the carrying value over the fair value of the asset.

Intangible assets consisted of the following:


	Aug 31, 2026
(in thousands)	Gross carrying value		Accumulated amortization		Net carrying value
Product technologies	$	189,127	$	(129,729)	$	59,398
Customer relationships	7,749		(5,369)		2,380
Trademarks	2,100		(2,100)		—
Licenses	3,837		(3,721)		116


	$	202,813	$	(140,919)	$	61,894


	May 31, 2026
(in thousands)	Gross carrying value		Accumulated amortization		Net carrying value
Product technologies	$	193,784	$	(129,188)	$	64,596
Customer relationships	7,749		(5,255)		2,494
Trademarks	2,100		(2,100)		—
Licenses	3,837		(3,718)		119


	$	207,470	$	(140,261)	$	67,209

Expected future amortization expense related to the intangible assets for each of the following fiscal years is as follows:


(in thousands)
Remainder of 2027	$	8,181
2028	10,860
2029	10,762
2030	10,748
2031	4,996
2032 and thereafter	16,347
	$	61,894