Intangible Assets

12 Months Ended

Apr. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

The following table summarizes intangible assets as of April 30, 2025 and 2024 (in thousands):


	April 30, 2025						April 30, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	$	89,980	$	(82,623)	$	7,357	$	89,980	$	(78,877)	$	11,103
Developed software and technology	28,155		(22,238)		5,917		27,762		(20,250)		7,512
Patents, trademarks, and trade names	70,060		(53,966)		16,094		69,497		(50,046)		19,451
	188,195		(158,826)		29,368		187,239		(149,173)		38,066
Patents and software in development	1,612		—		1,612		1,721		—		1,721
Total definite-lived intangible assets	189,807		(158,826)		30,981		188,960		(149,173)		39,787
Indefinite-lived intangible assets	430		—		430		430		—		430
Total intangible assets	$	190,237	$	(158,826)	$	31,411	$	189,390	$	(149,173)	$	40,217

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 na

mes. Amortization expense amounted to $9.8 million, $13.1 million, and $13.7 million for the fiscal years ended April 30, 2025, 2024, and 2023, respectively.

The following table represents future expected amortization expense as of April 30, 2025 (in thousands):


Fiscal	Amount
2026	$	8,481
2027	6,093
2028	4,645
2029	2,975
2030	2,336
Thereafter	4,838
Total	$	29,368

We did not record any impairment charges for long-lived intangible assets in the fiscal years ended April 30, 2025, 2024, and 2023, respectively.