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Leases (Operating Leases Weighted Average Remaining Lease Term and Discount Rate) (Details) | 6 Months Ended | 12 Months Ended
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Sep. 30, 2024 | Mar. 31, 2024
Operating Leases Remaining Lease Term And Weighted Average Discount Rate [Abstract] |  |
Remaining Lease Term Operating Lease Weighted Average | 22.5 | 21.9
Operating Lease Weighted Average Discount Rate Percent | 4.60% | 4.60%

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