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Leases (Operating Leases Weighted Average Remaining Lease Term and Discount Rate) (Details) | 3 Months Ended | 12 Months Ended
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Sep. 30, 2023 | Mar. 31, 2023
Operating Leases Remaining Lease Term And Weighted Average Discount Rate [Abstract] |  |
Remaining Lease Term Operating Lease Weighted Average | 18.9 | 19.2
Operating Lease Weighted Average Discount Rate Percent | 4.60% | 4.70%

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