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Derivative Financial Instruments - (Derivatives Effect on Statements of Income) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Designated as Hedging Instrument |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | $ 13,134 | $ 332 | $ (8,737)
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | 9,742 | (7,903) | (1,151)
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | 1,479 |  |
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | 1,181 |  |
Derivatives Not Designated as Hedging Instruments |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | (157) | 430 | (178)
Lead forward contracts | Designated as Hedging Instrument | Cost of goods sold |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | 12,193 | 202 | (8,683)
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | 8,974 | (7,411) | (1,690)
Foreign currency forward contracts | Designated as Hedging Instrument | Cost of goods sold |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | 941 | 130 | (54)
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | 768 | (492) | 539
Foreign currency forward contracts | Derivatives Not Designated as Hedging Instruments | Other (income) expense, net |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | (157) | $ 430 | $ (178)
Cross currency fixed interest rate swaps | Designated as Hedging Instrument | Interest expense |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Pretax Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | 1,479 |  |
Pretax Gain (Loss) Reclassified from AOCI into Income (Effective Portion) | $ 1,181 |  |

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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121577181&loc=SL110061190-113977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 + Details
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- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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