Preferred Stock (Composition of Preferred Stock) (Detail) - shares |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Class Fourteen Preferred Stock | |||
| Class of Stock [Line Items] | |||
| Number of shares Authorized | 90,000,000 | 90,000,000 | 90,000,000 |
| Number of shares Issued | 0 | 0 | 0 |
| Class Fifteen Preferred Stock | |||
| Class of Stock [Line Items] | |||
| Number of shares Authorized | 90,000,000 | 90,000,000 | 90,000,000 |
| Number of shares Issued | 0 | 0 | 0 |
| Class Sixteen Preferred Stock | |||
| Class of Stock [Line Items] | |||
| Number of shares Authorized | 150,000,000 | 150,000,000 | 150,000,000 |
| Number of shares Issued | 0 | 0 | 0 |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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