CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Fixed maturities, amortized cost	$ 6,146,055	$ 6,178,123
Cost	$ 16,180	$ 16,146
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	240,194,000	248,449,000
Common stock, shares outstanding (in shares)	240,194,000	248,449,000
Fixed income
Fixed maturities, amortized cost	$ 5,803,937	$ 5,838,145
Short-Term Investments
Fixed maturities, amortized cost	$ 342,118	$ 339,978