v3.25.3

Investments - Schedule of Net Realized and Unrealized Investment Gains and (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Gain (Loss) on Securities [Line Items]
Gross gains on sales	$ 8,311	$ 4,159	$ 12,192	$ 10,681
Gross losses on sales	(8,886)	(2,012)	(13,663)	(5,228)
Net realized gains (losses) on disposals	(575)	2,147	(1,471)	5,453
Net unrealized gains (losses) on equity securities	7,802	2,407	12,492	3,006
Losses on securities for which we have the intent to sell	0	(752)	(759)	(1,248)
Other realized gains (losses)	0	(602)	0	(602)
Net realized and unrealized investment gains (losses)	8,057	5,389	12,458	5,051
Debt Securities, Available-For-Sale
Gain (Loss) on Securities [Line Items]
Net credit loss benefit (expense)	829	2,191	2,345	(1,692)
CMLs
Gain (Loss) on Securities [Line Items]
Net credit loss benefit (expense)	$ 1	$ (2)	$ (149)	$ 134

The credit loss expense (benefit) during the period on investment portfolio.

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Amount of realized gains from sale of investment securities.

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Amount of realized losses from sale of investment securities.

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- Definition

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

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Other Realized Gains (Losses) On Investments

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- Definition

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

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized and unrealized gain (loss) on investment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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SELECTIVE INSURANCE GROUP INC 10-Q