Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Fixed maturities, available-for-sale, at fair value (amortized cost $2,173.1 and $2,095.9, respectively)	$ 2,192.8	$ 2,109.3
Equity securities, available-for-sale, at fair value (cost $318.6 and $323.1, respectively)	365.3	382.8
Other invested assets, available-for-sale, at fair value (cost $25.8 and $25.5, respectively)	56.0	45.1
Other invested assets	5.6	5.4
Notes receivable from affiliate	70.0	70.0
Total investments	2,689.7	2,612.6
Cash and cash equivalents	91.5	51.1
Accrued investment income and other assets	36.5	40.0
Deferred policy acquisition costs (affiliated net assumed $64.7 and $50.7, respectively)	117.8	129.8
Reinsurance recoverable on losses and loss expenses payable	3.1	3.6
Prepaid reinsurance premiums	6.4	6.1
Current federal income taxes	4.8	6.7
Net deferred federal income taxes	57.2	102.1
Property and equipment, at cost (net of accumulated depreciation of $6.8 and $6.6, respectively)	7.3	7.4
Total assets	3,014.3	2,959.4
Liabilities and Stockholders’ Equity
Losses and loss expenses payable (affiliated net assumed $711.4 and $630.9, respectively)	1,255.6	1,181.6
Unearned premiums (affiliated net assumed $187.9 and $220.9, respectively)	611.8	617.8
Notes payable (affiliates $15.2 and $15.2, respectively)	122.1	122.1
Postretirement and pension benefits (affiliated net ceded $34.8 and $40.1, respectively)	64.5	74.4
Due to affiliate	2.7	2.4
Other liabilities (affiliated net assumed $15.5 and $11.0, respectively)	76.7	69.8
Total liabilities	2,133.4	2,068.1
Stockholders’ equity:
Common stock, without par value. Authorized 100.0 shares; 49.2 and 48.6 shares issued, respectively, at stated value of $2.50 per share	123.0	121.6
Treasury stock, 6.8 and 6.8 shares, respectively, at cost	(116.8)	(116.5)
Additional paid-in capital	171.8	159.9
Accumulated other comprehensive income (affiliated net ceded $50.7 and $53.7, respectively)	36.7	32.5
Retained earnings	666.2	693.8
Total stockholders’ equity	880.9	891.3
Total liabilities and stockholders’ equity	3,014.3	2,959.4
Class A Preferred stock
Stockholders’ equity:
Preferred stock value	0.0	0.0
Class B Preferred stock
Stockholders’ equity:
Preferred stock value	$ 0.0	$ 0.0