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Related Party Transactions (Related Party Costs and Expenses) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | $ 26,500 | $ 20,400 | $ 89,953 | $ 69,690
Blackwater [Member] |  |  |  |
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | 26,531 | 20,427 |  |
Lease expenses | Blackwater [Member] |  |  |  |
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | 604 | 604 | 1,812 | 1,812
Lease expenses | Mercury [Member] |  |  |  |
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | 38 |  | 114 |
Printing expenses | Blackwater [Member] |  |  |  |
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | 1,176 | 877 | 3,734 | 2,194
Commission expenses | Blackwater [Member] |  |  |  |
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | 19,409 | $ 18,946 | 66,538 | $ 65,684
Commission expenses | Mercury [Member] |  |  |  |
Related party cost and expense: |  |  |  |
Costs and Expenses, Related Party | $ 5,304 |  | $ 17,755 |

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- Definition Related Party Cost And Expense Abstract + References No definition available. + Details
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- Definition Costs of sales and operating expenses for the period incurred from transactions with related parties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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- Details
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