Commitments and Contingencies (Details) - USD ($) $ / shares in Units, $ in Millions	Nov. 16, 2023	Sep. 30, 2024
Other Commitments [Line Items]
Contractual commitments related to its limited partnership investments (up to)		$ 82.2
Commitment to fund loan and mortgage loans		$ 75.9
Argo Group International Holdings, Inc. \| Common Stock \| Brookfield Wealth Solutions Ltd
Other Commitments [Line Items]
Equity interests issued and issuable (in dollars per share)	$ 30.00

Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

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