Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Assets
Fixed maturities, available-for-sale, at fair value (amortized cost $2,047.1 and $2,080.0, respectively)	$ 2,166.3	$ 2,127.9
Equity securities	339.5	395.2
Other invested assets	62.5	69.7
Other invested assets, at cost	12.5	6.5
Notes receivable from affiliate	70.0	70.0
Total investments	2,650.8	2,669.3
Cash and cash equivalents	131.4	78.0
Accrued investment income and other assets	31.1	31.7
Premiums receivable	14.1	13.6
Deferred policy acquisition costs (affiliated net assumed $27.6 and $20.2, respectively)	123.7	111.1
Reinsurance recoverable on losses and loss expenses payable	35.2	13.6
Prepaid reinsurance premiums	8.4	7.5
Due from Affiliates	18.3	7.9
Current federal income taxes	6.7	6.3
Net deferred federal income taxes	44.6	42.2
Property and equipment, held for sale	4.2	4.2
Total assets	3,068.5	2,985.4
Liabilities and Stockholders’ Equity
Losses and loss expenses payable (affiliated net assumed $450.9 and $500.8, respectively)	1,091.3	1,066.5
Unearned premiums (affiliated net assumed $450.8 and $415.8, respectively)	731.0	649.2
Notes payable (affiliates $15.2 and $15.2, respectively)	122.0	122.0
Pension and postretirement benefits	54.0	72.9
Other liabilities (affiliated net assumed $18.5 and $19.5, respectively)	126.1	114.9
Total liabilities	2,124.4	2,025.5
Stockholders’ equity:
Common stock, without par value. Authorized 100.0 shares; 50.7 and 50.4 shares issued, respectively, at stated value of $2.50 per share	126.7	125.9
Treasury stock, 6.9 and 6.9 shares, respectively, at cost	(118.4)	(117.5)
Additional paid-in capital	212.1	206.7
Accumulated other comprehensive income (loss)	23.3	(37.9)
Retained earnings	700.4	782.7
Total stockholders’ equity	944.1	959.9
Total liabilities and stockholders’ equity	3,068.5	2,985.4
Class A Preferred Stock [Member]
Stockholders’ equity:
Preferred stock value	0.0	0.0
Class B Preferred Stock [Member]
Stockholders’ equity:
Preferred stock value	$ 0.0	$ 0.0