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v3.23.3

Subsequent Events (Narratives) (Details) | 3 Months Ended | 6 Months Ended |  |
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Sep. 30, 2023 $ / shares shares | Sep. 30, 2022 $ / shares | Sep. 30, 2023 $ / shares shares | Sep. 30, 2022 $ / shares | Sep. 30, 2023 د.إ / shares shares | Mar. 31, 2023 د.إ / shares shares
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ / shares | $ 0.04 | $ 0.50 | $ 0.08 | $ 1.00 |  |
Nonvoting Common Stock [Member] |  |  |  |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share | د.إ / shares |  |  |  |  | د.إ 0.001 | د.إ 0.001
Common Stock, Shares Authorized | shares | 250,000,000 |  | 250,000,000 |  | 250,000,000 | 250,000,000
Amerco Common Stock [Member] |  |  |  |  |  |
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share | $ / shares | $ 0.25 |  | $ 0.25 |  |  |
Common Stock, Shares Authorized | shares | 250,000,000 |  | 250,000,000 |  | 250,000,000 |

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