Accounting Pronouncements (Deferred Acquisition Costs) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Liability For Unpaid Claims And Claims Adjustment Expense Net [Abstract]
Adjusted balance, beginning of year April 1, 2021	$ 829,992	$ 838,945

The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480046/944-40-55-7

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
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-Name Accounting Standards Codification
-Section 55
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-URI https://asc.fasb.org/1943274/2147480046/944-40-55-9E

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(13)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant