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Inventories (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 129,015	$ 79,981
Work-in-process	28,093	23,067
Finished goods	36,661	27,201
Inventory, Gross	193,769	130,249
LIFO cost less than FIFO cost	(21,630)	(18,761)
Net inventories	172,139	111,488
Business Acquisition [Line Items]
Increase (Decrease) in Inventories	40,201	$ (20,659)	$ (15,752)
Dorner
Business Acquisition [Line Items]
Increase (Decrease) in Inventories	19,941
Garvey
Business Acquisition [Line Items]
Increase (Decrease) in Inventories	$ 4,470

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The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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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 by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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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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