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Derivative Financial Instruments and Hedging - Additional Information (Detail) - Cash Flow Hedging [Member] - JPY (¥) ¥ in Millions | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Derivative instruments, gain (loss) reclassified from accumulated OCI into income, effective portion, net | ¥ 2,947 | ¥ (1,438) | ¥ (4,436)
Derivative instruments losses included in other comprehensive income loss reclassified into Earnings within next 12 months | ¥ (3,815) |  |

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- Definition Derivative instruments gains losses included in other comprehensive income loss reclassified into Earnings within next 12 months. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4E + Details
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