Reportable Segments - Reportable Segment Net Operating Income and Assets (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Strategic Capital [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 25.3	$ 25.3

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details