Statutory Requirements and Dividend Restrictions - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Insurance [Abstract]
Deferred tax assets, bermuda economic transition adjustment	$ 90.0
Statutory accounting practices, statutory amount available for dividend payments	$ 360.5	$ 424.4

Amount of dividends available for payment after computation of statutory restrictions on capital surplus.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant