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Related Party Transactions (Related Party Costs and Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Related Party Cost and Expense [Abstract]
Related party expenses, total	$ 113,400	$ 90,100	$ 90,500
Blackwater [Member]
Related Party Cost and Expense [Abstract]
Related party expenses, total	113,407	90,110	90,483
Blackwater [Member] | Lease Expense [Member]
Related Party Cost and Expense [Abstract]
Related party expenses, total	2,416	2,416	2,416
Blackwater [Member] | Selling and Marketing Expense [Member]
Related Party Cost and Expense [Abstract]
Related party expenses, total	4,624	3,681
Blackwater [Member] | Commission Expense [Member]
Related Party Cost and Expense [Abstract]
Related party expenses, total	83,685	82,095	$ 88,067
Mercury [Member] | Lease Expense [Member]
Related Party Cost and Expense [Abstract]
Related party expenses, total	152	25
Mercury [Member] | Commission Expense [Member]
Related Party Cost and Expense [Abstract]
Related party expenses, total	$ 22,530	$ 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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