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Investments - Schedule of Net Realized and Unrealized Investment Gains and (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Gain (Loss) on Securities [Line Items]
Gross gains on sales	$ 1,727	$ 2,135
Gross losses on sales	(2,383)	(1,965)
Net realized gains (losses) on disposals	(656)	170
Net unrealized gains (losses) on equity securities	1,050	692
Losses on securities for which we have the intent to sell	(759)	(15)
Net realized and unrealized investment gains (losses)	229	(1,635)
Debt Securities, Available-For-Sale
Gain (Loss) on Securities [Line Items]
Net credit loss benefit (expense)	629	(2,650)
Commercial mortgage loans ("CMLs")
Gain (Loss) on Securities [Line Items]
Net credit loss benefit (expense)	$ (35)	$ 168

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Amount of realized gains from sale of investment securities.

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Losses On Investment Securities For Which We Have The Intent To Sell

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Amount of realized gain (loss) on investment in debt and equity securities.

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