Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions							1 Months Ended	3 Months Ended
	Apr. 26, 2024	Apr. 24, 2024	Mar. 28, 2024	Mar. 08, 2024	Mar. 06, 2024	Feb. 23, 2024	Apr. 24, 2024	Mar. 31, 2024	Dec. 31, 2023
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)								81,373,919	80,722,983
Cash proceeds from the sale of common stock								$ 35.0
Series C Preferred Stock \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Consideration to be received on sale of stock							$ 10.0
Lancer Capital \| Series C Preferred Stock \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Consideration to be received on sale of stock							$ 6.3
Issuance of common stock (in shares)							6,286
DBMGi \| Non-Operating Corporate
Subsidiary, Sale of Stock [Line Items]
Debt covenant, mandatory prepayment, proceeds from certain asset sales, amount threshold								$ 3.0
Debt covenant, mandatory prepayment, proceeds from equity sales percentage								12.50%
CGIC \| Subsequent Event \| Secured Debt
Subsidiary, Sale of Stock [Line Items]
Repayments of long-term debt	$ 4.1
Rights Offering
Subsidiary, Sale of Stock [Line Items]
Issuance of common stock (in shares)					0.2858
Sale of stock (in USD per share)					$ 0.70
Rights Offering \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Common stock, shares issued (in shares)		5,306,105					5,306,105
Cash proceeds from the sale of common stock		$ 3.7
Rights Offering \| Lancer Capital \| Series C Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Unit price (in USD per share)						$ 1,000
Rights Offering \| Lancer Capital
Subsidiary, Sale of Stock [Line Items]
Consideration to be received on sale of stock				$ 19.0
Private Placement \| Series C Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Consideration to be received on sale of stock			$ 25.0
Private Placement \| Lancer Capital \| Preferred stock and fixed maturities
Subsidiary, Sale of Stock [Line Items]
Issuance of preferred stock in private placement						$ 16.0		$ 16.0
Rights Offering And Concurrent Private Placement
Subsidiary, Sale of Stock [Line Items]
Sale of stock (in USD per share)								$ 0.70
Cash proceeds from the sale of common stock								$ 35.0
Stock issuance cost other offering expenses								1.8
Stock issuance costs recognized								0.5
Rights Offering And Concurrent Private Placement \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Stock issuance cost other offering expenses							$ 0.3
Rights Offering And Concurrent Private Placement \| Series C Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Stock issuance cost other offering expenses								$ 1.3
Rights Offering And Concurrent Private Placement \| Lancer Capital \| Series C Preferred Stock
Subsidiary, Sale of Stock [Line Items]
Unit price (in USD per share)								$ 1,000
Rights Offering And Concurrent Private Placement \| Lancer Capital \| Series C Preferred Stock \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Issuance of common stock (in shares)							6,286