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Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) - Retained Earnings [Member] - $ / shares | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Common stock dividends, per share |  | $ 1 | $ 1.5
Non-voting common stock dividend per share declared | $ 0.18 | $ 0.08 |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 + Details
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