Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 29, 2024	May 31, 2025	May 31, 2024	May 31, 2023
Property, plant and equipment
Property, plant and equipment, Net		$ 32,300	$ 35,666
Depreciation expense		13,500	14,700	$ 11,900
Accelerated depreciation		3,400	2,400
Impairment charges	$ 3,400
Property, Plant and Equipment Excluding Land And Improvements
Property, plant and equipment
Property, plant and equipment		103,023	108,212
Property, plant and equipment, Net		31,907	35,173
Building and building improvements
Property, plant and equipment
Property, plant and equipment		16,604	30,099
Building
Property, plant and equipment
Less accumulated depreciation		0	(3,364)
Computer software and equipment
Property, plant and equipment
Property, plant and equipment		29,038	28,407
Machinery and equipment
Property, plant and equipment
Property, plant and equipment		16,596	15,756
Placement and evaluation units
Property, plant and equipment
Property, plant and equipment		36,991	31,312
Construction in progress
Property, plant and equipment
Property, plant and equipment		3,794	2,638
Property, Plant and Equipment Excluding Building
Property, plant and equipment
Less accumulated depreciation		(71,116)	(69,675)
Land and land improvements
Property, plant and equipment
Property, plant and equipment		$ 393	$ 493