Share Capital Authorized and Issued (Tables)

6 Months Ended

Jun. 30, 2025

Equity [Abstract]

Schedule of Stock by Class

	June 30, 2025	December 31, 2024
Preference securities, par value $0.01 per share
Authorized	—	1,000,000
Issued and outstanding:
9% cumulative preference shares	—	5,835

The following sets out the number and par value of shares authorized, issued and outstanding:

	June 30, 2025	December 31, 2024
Common shares, par value $0.01 per share
Authorized	600,000,000	600,000,000
Issued and outstanding
Common shares	104,861,827	111,730,209

Schedule of Common Shares Repurchased

The following table summarizes common shares repurchased in the three and six months ended June 30, 2025 and 2024:

	Three months ended				Six months ended
	June 30, 2025		June 30, 2024		June 30, 2025		June 30, 2024
Common shares repurchased	5,484,838		1,932,418		6,923,116		2,290,020
Cost of shares repurchased, inclusive of commissions	$	88.7	$	33.7	$	110.8	$	38.7
Weighted average price per share, inclusive of commissions	$	16.17	$	17.43	$	16.01	$	16.89