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Related Party Transactions (Related Party Costs and Expenses) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | $ 90,100 | $ 90,500 | $ 90,700
Blackwater [Member] |  |  |
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | 90,110 | 90,483 | 90,733
Blackwater [Member] | Lease Expense [Member] |  |  |
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | 2,416 | 2,416 | 2,445
Blackwater [Member] | Selling and Marketing Expense [Member] |  |  |
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | 3,681 |  |
Blackwater [Member] | Commission Expense [Member] |  |  |
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | 82,095 | 88,067 | 88,288
Mercury [Member] | Lease Expense [Member] |  |  |
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | 25 |  |
Mercury [Member] | Commission Expense [Member] |  |  |
Related Party Cost and Expense [Abstract] |  |  |
Related party expenses, total | $ 1,893 |  |

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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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