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Investments - Hildene - Narrative (Details) - Hildene Insurance Holdings, LLC - USD ($) $ in Millions	Dec. 09, 2025	Feb. 28, 2026	Nov. 30, 2025	Mar. 01, 2025	Feb. 28, 2025	Jul. 31, 2024
Schedule of Equity Method Investments [Line Items]
Equity investments				$ 75.0		$ 25.0
Ownership percentage	50.00%			23.50%	8.83%
Funded equity commitments	$ 250.0	$ 117.1	$ 113.8
Payment to acquire investment	$ 340.0

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