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Inventory - Net - Inventory - Net (Details) - USD ($)	Sep. 30, 2025	Mar. 31, 2025
Inventory — net
Raw materials	$ 154,168,000	$ 150,274,000
Work-in-process	9,607,000	7,821,000
Finished goods	209,538,000	202,078,000
Inventory, gross	373,313,000	360,173,000
Less allowance for excess and obsolete inventory	(19,019,000)	(18,964,000)
Inventory	354,294,000	341,209,000
Inventory unreturned	18,296,000	18,460,000
Total inventory — net	$ 372,590,000	$ 359,669,000

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Carrying amount as of the balance sheet date of the added unit value of finished goods shipped to customers that the entity expects to be returned within the normal operating cycle of one year.

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Carrying amount of inventory net as of balance sheet date and the inventory the entity expects to be returned within the normal operating cycle of one year.

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- Definition

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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