Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investments:
Fixed Maturities, available-for-sale, at fair value (amortized cost: 2017: $3,027,408; 2016: $2,628,225)	$ 3,057,054	$ 2,635,882
Equity Securities, available-for-sale, at fair value (cost: 2017: $224,159; 2016: $327,911)	235,981	349,142
Other Invested Assets	1,720	1,960
Short-Term Investments, at fair value (amortized cost: 2017: $127,125; 2016: $143,451)	127,128	143,539
Total Investments	3,421,883	3,130,523
Cash	67,084	64,643
Premiums Receivable	351,393	306,686
Prepaid Reinsurance Premiums	228,569	213,377
Reinsurance Recoverable on Paid Losses	72,494	82,582
Reinsurance Recoverable on Unpaid Losses and Loss Adjustment Expenses	809,765	779,276
Deferred Policy Acquisition Costs	135,249	119,660
Accrued Investment Income	19,480	17,315
Goodwill and Other Intangible Assets	6,596	6,451
Current Income Tax Receivable, Net	16,667	20,556
Deferred Income Tax, Net	22,271	20,938
Other Assets	73,171	52,030
Total Assets	5,224,622	4,814,037
Liabilities:
Reserves for Losses and Loss Adjustment Expenses	2,515,145	2,289,727
Unearned Premiums	987,681	887,344
Reinsurance Balances Payable	136,192	108,980
Senior Notes	263,885	263,728
Accounts Payable and Other Liabilities	95,754	86,070
Total Liabilities	3,998,657	3,635,849
Stockholders' Equity:
Preferred Stock, ($.10 par value, authorized 1,000 shares, none issued)	0	0
Common Stock, ($.10 par value, authorized 50,000 shares, issued 36,530 shares for 2017 and 36,147 shares for 2016)	3,650	3,612
Additional Paid-In Capital	376,868	373,983
Treasury Stock, at cost (7,023 shares for 2017 and 2016)	(155,801)	(155,801)
Retained Earnings	981,380	947,519
Accumulated Other Comprehensive Income	19,868	8,875
Total Stockholders' Equity	1,225,965	1,178,188
Total Liabilities and Stockholders' Equity	$ 5,224,622	$ 4,814,037