Intangible Assets

12 Months Ended

Apr. 30, 2026

Intangible Asset, Goodwill and Other [Abstract]

The following table summarizes intangible assets as of April 30, 2026 and 2025 (in thousands):


	April 30, 2026						April 30, 2025
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	$	77,380	$	(73,516)	$	3,864	$	89,980	$	(82,623)	$	7,357
Developed software and technology	28,354		(24,076)		4,278		28,155		(22,238)		5,917
Patents, trademarks, and trade names	70,504		(57,775)		12,730		70,060		(53,966)		16,094
	176,239		(155,367)		20,872		188,195		(158,827)		29,368
Patents and software in development	2,225		—		2,225		1,612		—		1,612
Total definite-lived intangible assets	178,463		(155,367)		23,097		189,807		(158,827)		30,981
Indefinite-lived intangible assets	430		—		430		430		—		430
Total intangible assets	$	178,894	$	(155,367)	$	23,527	$	190,237	$	(158,827)	$	31,411

We amortize definite-lived intangible assets with determinable lives over a weighted-average period of approximately five years. The weighted-average periods of amortization by intangible asset class is approximately five years for customer relationships, six years for developed software and technology, and six years for patents, trademarks, and trade names. Amortization expense amounted to $8.4 million, $9.8 million, and $13.1 million for the fiscal years ended April 30, 2026, 2025, and 2024, respectively.

The following table represents future expected amortization expense as of April 30, 2026 (in thousands):


Fiscal	Amount
2027	$	5,859
2028	4,482
2029	3,048
2030	2,307
2031	1,449
Thereafter	3,727
Total	$	20,872

We did not record any impairment charges for long-lived intangible assets in the fiscal years ended April 30, 2026, 2025, and 2024, respectively.