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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Fixed maturity investments trading, amortized cost	$ 13,555,195	$ 13,552,579
Preference shares, par value (in dollars per share)	$ 1.00	$ 1.00
Preference shares, shares issued (In shares)	30,000	30,000
Preference shares, shares outstanding (in shares)	30,000	30,000
Common shares, par value (In dollars per share)	$ 1.00	$ 1.00
Common shares, shares issued (In shares)	43,701,890	44,444,831
Common shares, shares outstanding (In shares)	43,701,890	44,444,831

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Face amount or stated value per share of common stock.

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