CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Mar. 31, 2021
Statement of Financial Position [Abstract]
Trade accounts receivable, allowances	$ 28,962	$ 26,516
Inventories, reserves	20,699	19,632
Accumulated depreciation	272,523	266,905
Accumulated amortization	$ 78,449	$ 77,473
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares (in shares)	125,000,000	125,000,000
Common stock, issued shares (in shares)	27,567,000	27,910,000
Common stock, outstanding shares (in shares)	27,567,000	27,910,000

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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Amount of allowance for credit loss on accounts receivable, classified as current.

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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