v3.25.1
Fair Values of Financial Instruments Carrying Amounts and Estimated Fair value of Financial Instruments Not Measured at Fair Value (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Mortgage Loans, Carrying Amount [1] $ 2,187.7 $ 2,224.5
Policy Loans 3,636.4 3,617.2
Long-term Debt 3,467.0 3,465.2
Liabilities, Fair Value Disclosure 220.4 255.7
Fair Value, Nonrecurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Mortgage Loans, Fair Value Disclosure 1,992.4 1,975.4
Mortgage Loans, Carrying Amount 2,187.7 2,224.5
Policy Loans, Fair Value Disclosure 3,698.1 3,672.9
Policy Loans 3,636.4 3,617.2
Miscellaneous Long-Term Investments, Fair Value Disclosure 31.1 26.9
Miscellaneous Long-Term Investments 31.1 26.9
Financial Instruments, Financial Assets Fair Value Disclosure 5,721.6 5,675.2
Total Financial Instrument Assets Not Carried at Fair Value 5,855.2 5,868.6
Long-term Debt, Fair Value Disclosure 3,339.7 3,289.3
Long-term Debt 3,467.0 3,465.2
Unfunded Commitments 0.2 0.2
Federal Home Loan Bank Funding Agreements, Fair Value Disclosure 420.4 324.2
Liabilities, Fair Value Disclosure 3,760.3 3,613.7
Total Financial Instrument Liabilities Not Carried at Fair Value 3,887.6 3,789.6
Fair Value, Inputs, Level 1 | Fair Value, Nonrecurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Mortgage Loans, Fair Value Disclosure 0.0 0.0
Policy Loans, Fair Value Disclosure 0.0 0.0
Miscellaneous Long-Term Investments, Fair Value Disclosure 0.0 0.0
Financial Instruments, Financial Assets Fair Value Disclosure 0.0 0.0
Long-term Debt, Fair Value Disclosure 2,897.0 3,246.1
Unfunded Commitments 0.0 0.0
Federal Home Loan Bank Funding Agreements, Fair Value Disclosure 0.0 0.0
Liabilities, Fair Value Disclosure 2,897.0 3,246.1
Fair Value, Inputs, Level 2 | Fair Value, Nonrecurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Mortgage Loans, Fair Value Disclosure 1,992.4 1,975.4
Policy Loans, Fair Value Disclosure 0.0 0.0
Miscellaneous Long-Term Investments, Fair Value Disclosure 30.9 26.7
Financial Instruments, Financial Assets Fair Value Disclosure 2,023.3 2,002.1
Long-term Debt, Fair Value Disclosure 442.7 43.2
Unfunded Commitments 0.2 0.2
Federal Home Loan Bank Funding Agreements, Fair Value Disclosure 420.4 324.2
Liabilities, Fair Value Disclosure 863.3 367.6
Fair Value, Inputs, Level 3 | Fair Value, Nonrecurring    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Mortgage Loans, Fair Value Disclosure 0.0 0.0
Policy Loans, Fair Value Disclosure 3,698.1 3,672.9
Miscellaneous Long-Term Investments, Fair Value Disclosure 0.2 0.2
Financial Instruments, Financial Assets Fair Value Disclosure 3,698.3 3,673.1
Long-term Debt, Fair Value Disclosure 0.0 0.0
Unfunded Commitments 0.0 0.0
Federal Home Loan Bank Funding Agreements, Fair Value Disclosure 0.0 0.0
Liabilities, Fair Value Disclosure $ 0.0 $ 0.0
[1]
1Loan-to-Value Ratio utilizes the most recent internal valuation of the property