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v3.21.1

Derivative Instruments (Narratives) (Details) | 12 Months Ended
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Mar. 31, 2021 USD ($) Counterparty | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($)
Derivatives, Fair Value [Line Items] |  |  |
Number of different counterparties | Counterparty | 3 |  |
Reclassify Next Year |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Amount of accumulated other comprehensive loss expected to be reclassified in the next 12 months | $ 57,000 |  |
Derivatives Designated as Hedging Instruments | Currency Swap [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Amount of accumulated other comprehensive loss expected to be reclassified in the next 12 months | 653,000 |  |
Derivative, Notional Amount | 159,520,000 |  |
Derivatives Designated as Hedging Instruments | Commodity Contract |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative, Notional Amount | 6,457,000 |  |
Derivatives Designated as Hedging Instruments | Reclassify Next Year |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Amount of accumulated other comprehensive loss expected to be reclassified in the next 12 months | 901,000 |  |
Derivatives Designated as Hedging Instruments | Interest Rate Swap [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative, Notional Amount | 119,820,000 |  |
Cost of Sales [Member] | Derivatives Designated as Hedging Instruments | Foreign Exchange Contract [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | 83,000 | $ 40,000 | $ (16,000)
Cost of Sales [Member] | Derivatives Designated as Hedging Instruments | Interest Rate Swap [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 242,000 |
Foreign Currency Gain (Loss) [Member] | Derivatives Designated as Hedging Instruments | Cross Currency Interest Rate Contract [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | $ (2,888,000) | (17,231,000)
Interest Expense [Member] | Derivatives Designated as Hedging Instruments | Currency Swap [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | (7,268,000) |  |
Interest Expense [Member] | Derivatives Designated as Hedging Instruments | Foreign Exchange Contract [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | $ (1,463,000) |  |
Interest Expense [Member] | Derivatives Designated as Hedging Instruments | Interest Rate Swap [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  |  | $ 765,000

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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