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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Amortized cost	$ 606,446	$ 599,287
Common stock, par value (in usd per share)	$ 1	$ 1
Treasury stock (in shares)	352,161	352,161
Common stock, shares outstanding (in shares)	28,019,626	27,763,691

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Face amount or stated value per share of common stock.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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