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Business and Organization - Merger Transactions (Details) - Star Holdings - SpinCo Manager - Affiliated entity - USD ($) $ in Millions			12 Months Ended
	Mar. 28, 2025	Mar. 31, 2023	Mar. 31, 2025	Mar. 31, 2024
Merger
Management fees			$ 15.0	$ 25.0
Annual management fee - Year 3	$ 10.0
Annual management fee - Year 4	$ 7.5	$ 5.0
Annual management fee percent of gross book value, year five and thereafter	2.00%

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- Definition

The percentage of gross assets, net of common stock shares owned, used for determining annual fees for managing operations for year five and thereafter per a management agreement.

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- Definition

The amount of fees to be paid for management of operations in year four per a management agreement.

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- Definition

The amount of fees to be paid for management of operations in year three per a management agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of expense for investment management fee, including, but not limited to, expense in connection with research, selection, supervision, and custody of investment.

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