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Fair Value Measurements - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Mar. 31, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest payable	$ 24,900	$ 19,400
Level 1 | Carrying Amount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Cash and cash equivalents	4,902	1,346
Accounts payable and accrued expenses	234,348	156,770
Level 1 | Estimated Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Cash and cash equivalents	4,902	1,346
Accounts payable and accrued expenses	234,348	156,770
Level 2 | Carrying Amount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt due to related parties, net	103,960	117,896
Level 2 | Estimated Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt due to related parties, net	$ 132,622	$ 143,260

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