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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
The valuation of assets measured at fair value in the Company’s Consolidated Balance Sheet at December 31, 2021 is summarized below. The Company has no material liabilities that are measured and reported at fair value.
DOLLARS IN MILLIONSFair Value MeasurementsTotal Fair Value
Quoted Prices
in Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Measured at Net Asset Value
Fixed Maturities:
U.S. Government and Government Agencies and Authorities
$132.8 $504.6 $— $— $637.4 
States and Political Subdivisions— 1,890.1 — — 1,890.1 
Foreign Governments— 5.5 — — 5.5 
Corporate Securities:
Bonds and Notes— 4,150.1 236.8 — 4,386.9 
Redeemable Preferred Stocks— 1.3 6.1 — 7.4 
Collateralized Loan Obligations— 752.1 — — 752.1 
Other Mortgage- and Asset-backed
— 300.5 7.0 — 307.5 
Total Investments in Fixed Maturities132.8 7,604.2 249.9 — 7,986.9 
Equity Securities at Fair Value:
Preferred Stocks:
Finance, Insurance and Real Estate
— 34.2 — — 34.2 
Other Industries— 16.1 1.5 — 17.6 
Common Stocks:
Finance, Insurance and Real Estate
18.9 — — — 18.9 
Other Industries2.9 — — — 2.9 
Other Equity Interests:
Exchange Traded Funds432.0 — — — 432.0 
Limited Liability Companies and Limited Partnerships
— — — 325.0 325.0 
Total Investments in Equity Securities at Fair Value
453.8 50.3 1.5 325.0 830.6 
Convertible Securities at Fair Value— 46.4 — — 46.4 
Total$586.6 $7,700.9 $251.4 $325.0 $8,863.9 
The valuation of assets measured at fair value in the Company’s Consolidated Balance Sheet at December 31, 2020 is summarized below.
DOLLARS IN MILLIONSFair Value MeasurementsTotal Fair Value
Quoted Prices
in Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Measured at Net Asset Value
Fixed Maturities:
U.S. Government and Government Agencies and Authorities
$134.0 $451.3 $— $— $585.3 
States and Political Subdivisions— 1,589.5 — — 1,589.5 
Foreign Governments— 5.2 — — 5.2 
Corporate Securities:
Bonds and Notes— 3,992.4 433.0 — 4,425.4 
Redeemable Preferred Stocks— 1.3 6.2 — 7.5 
Collateralized Loan Obligations— 767.7 — — 767.7 
Other Mortgage- and Asset-backed
— 215.3 10.0 — 225.3 
Total Investments in Fixed Maturities134.0 7,022.7 449.2 — 7,605.9 
Equity Securities at Fair Value:
Preferred Stocks:
Finance, Insurance and Real Estate
— 43.7 — — 43.7 
Other Industries— 15.4 — — 15.4 
Common Stocks:
Finance, Insurance and Real Estate
8.7 1.7 — — 10.4 
Other Industries0.4 — — — 0.4 
Other Equity Interests:
Exchange Traded Funds496.4 — — — 496.4 
Limited Liability Companies and Limited Partnerships
— — — 292.2 292.2 
Total Investments in Equity Securities at Fair Value
505.5 60.8 — 292.2 858.5 
Convertible Securities at Fair Value— 39.9 — — 39.9 
Total$639.5 $7,123.4 $449.2 $292.2 $8,504.3 
Fair Value Inputs, Assets, Quantitative Information The table below presents quantitative information about the significant unobservable inputs utilized by the Company in determining fair values for fixed maturity investments in corporate securities classified as Level 3 at December 31, 2021.
NOTE 10. FAIR VALUE MEASUREMENTS (Continued)
DOLLARS IN MILLIONSUnobservable InputTotal Fair ValueRange of Unobservable InputsWeighted-average Yield
Investment-grade Market Yield$87.9 2.3 %-10.3 %5.4 %
Non-investment-grade:
Senior DebtMarket Yield76.1 5.1 -20.2 8.5 
Junior DebtMarket Yield53.9 6.0 -27.5 15.0 
OtherVarious32.0 
Total Level 3 Fixed Maturity Investments$249.9 
The table below presents quantitative information about the significant unobservable inputs utilized by the Company in determining fair values for fixed maturity investments in corporate securities classified as Level 3 at December 31, 2020.
DOLLARS IN MILLIONSUnobservable InputTotal Fair ValueRange of Unobservable InputsWeighted-average Yield
Investment-grade Market Yield$246.7 1.4 %-13.0 %3.8 %
Non-investment-grade:
Senior DebtMarket Yield111.1 2.4 -23.4 9.5 
Junior DebtMarket Yield64.6 3.1 -27.9 13.7 
OtherVarious26.8 
Total Level 3 Fixed Maturity Investments$449.2 
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the year ended December 31, 2021 is presented below.
DOLLARS IN MILLIONSFixed MaturitiesEquity Securities
Corporate
Bonds
and
Notes
Redeemable
Preferred
Stocks
Collateralized Loan ObligationsOther Mortgage-
and Asset-
backed
Preferred
and
Common
Stocks
Total
Balance at Beginning of Year
$433.0 $6.2 $— $10.0 $— $449.2 
Total Gains (Losses):
Included in Consolidated Statement of Income2.8 — — — — 2.8 
Included in Other Comprehensive Income (Loss)1.2 (0.1)0.1 (0.5)0.7 1.4 
Purchases104.6 — 17.7 16.2 1.7 140.2 
Settlements— — — (0.1)— (0.1)
Sales(128.1)— (10.0)(0.2)— (138.3)
Transfers into Level 38.1 — 10.0 — 1.7 19.8 
Transfers out of Level 3(184.8)— (17.8)(18.4)(2.6)(223.6)
Balance at End of Year$236.8 $6.1 $— $7.0 $1.5 $251.4 
Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the year ended December 31, 2020 is presented below.
DOLLARS IN MILLIONSFixed MaturitiesTotal
Corporate
Bonds and
Notes
States and Political Sub-divisionsRedeemable
Preferred
Stocks
Collateralized Loan ObligationsOther Mortgage-
and Asset-
backed
Balance at Beginning of Year$409.1 $— $6.7 $618.2 $10.2 $1,044.2 
Total Gains (Losses):
Included in Consolidated Statement of Income(9.0)— — (0.3)— (9.3)
Included in Other Comprehensive Income (Loss)3.2 0.1 0.5 (9.3)0.4 (5.1)
Purchases185.9 0.6 0.2 53.5 — 240.2 
Settlements— — — — (0.1)(0.1)
Sales(165.2)— — (26.4)(0.5)(192.1)
Transfers into Level 39.0 — — — — 9.0 
Transfers out of Level 3— (0.7)(1.2)(635.7)— (637.6)
Balance at End of Year$433.0 $— $6.2 $— $10.0 $449.2 
Fair Value, by Balance Sheet Grouping
Presented below are the carrying values and fair value estimates of financial instruments not carried at fair value.
 December 31, 2021December 31, 2020
(Dollars in Millions)Carrying ValueFair ValueCarrying ValueFair Value
Financial Assets:
Loans to Policyholders$286.2 $286.2 $297.9 $297.9 
Short-term Investments284.1 284.1 875.4 875.4 
Mortgage Loans96.8 96.8 54.6 54.6 
Company-Owned Life Insurance448.1448.1327.4327.4
Equity Securities at Modified Cost32.332.340.140.1
Financial Liabilities:
Long-term Debt, Current and Non-current$1,121.9 $1,152.1 $1,172.8 $1,247.8 
Policyholder Contract Liabilities401.9 401.9 407.8 407.8