Investments (Amortized Cost Basis of Loan Modifications made to Borrowers Experiencing Financial Difficulties) (Details) - Commercial Portfolio Segment $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($)
Term Extension
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified in Period, Amount	$ 14,546
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.20%
Other Than Insignificant Delay in Payment
Financing Receivable, Modified [Line Items]
Financing Receivable, Modified in Period, Amount	$ 4,570
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage	0.10%

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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