ORIX Corporation Shareholders' Equity - Additional Information (Detail) - JPY (¥) ¥ in Millions	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Class of Stock [Line Items]
Dividends to be distributed to shareholders		¥ 50,209
Declared date of dividends to be distributed to shareholders		2023-05
Record date of dividends to be distributed to shareholders		Mar. 31, 2023
Amount available for dividends under the Japanese Companies Act	¥ 884,149
Equity in undistributed earnings of the companies accounted for by the equity method	25,091	¥ 15,006	¥ 481
Restricted net assets of certain subsidiaries include regulatory capital requirements for banking and life insurance operations	13,623
Retained Earnings
Class of Stock [Line Items]
Equity in undistributed earnings of the companies accounted for by the equity method	¥ 104,346

Japan GAAP statutory accounting practices statutory amount available for dividend payments.

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- Definition

Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

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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.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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The month and year (YYYY-MM) that the dividend to be paid was declared.

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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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