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Impairment Loss, Debt Securities, Portion Recognized in Earnings, Excluding Non-credit Portion

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Impairment Loss, Debt Securities, Portion Recognized in Earnings

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Impairment Losses, Investments, Portion In Other Comprehensive Loss, Before Tax, Portion Attributable To Parent

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Investment In Unconsolidated Subsidiaries

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Number of debt securities in unrealized loss position as percentage of total debt securities.

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Number of Investment Affiliates Exceeding Shareholder's Equity Ten Percent Threshold Limit

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Number of LPs / LLCs with Equity Method Investment Ownership Percentage Over 25 percent

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Second greatest unrealized loss position.

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Single greatest unrealized loss position.

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Threshold Limit Of Investments Based On Shareholders Equity

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Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

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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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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Investments (Narrative) (Details) $ in Thousands	3 Months Ended			9 Months Ended
Investments (Narrative) (Details) $ in Thousands	Sep. 30, 2024 USD ($) security issuer business investment	Jun. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) security issuer business bond investment	Sep. 30, 2023 USD ($) bond	Dec. 31, 2023 USD ($) issuer business security
Debt Securities, Available-for-Sale [Line Items]
Number of investment in any entity or affiliates greater than 10% of stockholders' equity \| investment	0			0
Threshold limit of investments based on shareholders' equity	10.00%			10.00%
Securities on deposit with state insurance departments	$ 52,500			$ 52,500
Number of LPs / LLCs with investment ownership percent over 25% (in businesses) \| business	3			3		4
Investment in unconsolidated subsidiaries	$ 271,490			$ 271,490		$ 276,756
Net impairment losses recognized in earnings	1,801		$ 141	3,200	$ 3,117
Net impairment losses recognized in earnings				3,300
Portion of impairment losses recognized in other comprehensive income (loss) before taxes	0		0	$ 102	$ 0
Number of corporate bonds \| bond				4	2
Tax Credit Partnership Investment Tax Credit Carryforward
Debt Securities, Available-for-Sale [Line Items]
Deferred income tax credits			$ 400		$ 500
Lloyd's Syndicates
Debt Securities, Available-for-Sale [Line Items]
Required FAL deposit	15,500			$ 15,500
Settlement received		$ 5,200
Asset Pledged as Collateral
Debt Securities, Available-for-Sale [Line Items]
Securities on deposit with state insurance departments	71,500			71,500
Tax Year 2019
Debt Securities, Available-for-Sale [Line Items]
Tax credit carryforwards	$ 52,800			$ 52,800
Tax Credit Partnerships Less Than 20% Ownership \| Maximum
Debt Securities, Available-for-Sale [Line Items]
Investment ownership percentage	20.00%			20.00%
Other Limited Partnerships and Limited Liability Company, Greater Than 25% Ownership
Debt Securities, Available-for-Sale [Line Items]
Investment ownership percentage	25.00%			25.00%
Investment in unconsolidated subsidiaries	$ 14,000			$ 14,000		23,000
Other Limited Partnerships and Limited Liability Company Less than 25% Ownership
Debt Securities, Available-for-Sale [Line Items]
Investment in unconsolidated subsidiaries	$ 257,200			$ 257,200		$ 253,100
Non government-backed
Debt Securities, Available-for-Sale [Line Items]
Debt securities in unrealized loss position (in securities) \| security	2,105			2,105		2,531
Debt securities in unrealized loss position as percentage of total debt securities held	52.30%			52.30%		65.60%
Issuers in unrealized loss position (in issuers) \| issuer	1,182			1,182		1,319
Single greatest unrealized loss position	$ 4,400			$ 4,400		$ 5,000
Second greatest unrealized loss position	$ 2,700			$ 2,700		$ 3,200