Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Aggregate net fair value of all derivative instruments designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

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Nominal or face amount used to calculate payment on derivative.

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Amount of gain (loss) recognized in other comprehensive income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3).

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Derivative Instruments (Narratives) (Details) - USD ($)	3 Months Ended		6 Months Ended
Derivative Instruments (Narratives) (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Mar. 31, 2021
Derivatives, Fair Value [Line Items]
Payments to Acquire Property, Plant, and Equipment			$ 6,752,000	$ 2,779,000
Reclassify Next Year [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments in Hedges, at Fair Value, Net	$ 1,057,000		1,057,000
Derivatives Not Designated as Hedging Instruments \| Foreign exchange contracts \| Foreign Currency Gain (Loss) [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	0	$ 17,000	0	(1,000)
Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	138,528,000		138,528,000
Derivative Instruments in Hedges, at Fair Value, Net	795,000		795,000
Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member] \| Cost of products sold
Derivatives, Fair Value [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	590,000	(5,667,000)	(490,000)	(7,940,000)
Designated as Hedging Instrument \| Cross Currency Interest Rate Contract [Member] \| Foreign Currency Gain (Loss) [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	3,342,000	(5,623,000)	2,357,000	(7,928,000)
Designated as Hedging Instrument \| Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	5,862,000		5,862,000
Derivative Instruments in Hedges, at Fair Value, Net	42,000		42,000
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	23,000	(36,000)	(14,000)	(161,000)
Designated as Hedging Instrument \| Foreign exchange contracts \| Cost of products sold
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(33,000)	70,000	(29,000)	78,000
Designated as Hedging Instrument \| Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	104,085,000		104,085,000
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Other Noncurrent Assets
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	95,000		95,000		$ 0
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Cost of products sold
Derivatives, Fair Value [Line Items]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)	(758,000)	(194,000)	(861,000)	(367,000)
Designated as Hedging Instrument \| Interest Rate Swap [Member] \| Interest Expense [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (459,000)	$ (425,000)	$ (794,000)	$ (687,000)
Maximum [Member]
Derivatives, Fair Value [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	50.00%		50.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	70.00%		70.00%
Minimum [Member]
Derivatives, Fair Value [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	30.00%		30.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	50.00%		50.00%