Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost: 2016: $2,628,225; 2015: $2,400,245)		$ 2,635,882	$ 2,414,210
Equity securities, available-for-sale, at fair value (cost: 2016: $327,911; 2015: $281,943)		349,142	305,271
Short-term investments, at fair value (amortized cost: 2016: $143,451; 2015: $217,743)		143,539	217,745
Total investments		3,130,523	2,937,226
Cash		64,643	69,901
Premiums receivable		306,686	276,616
Prepaid reinsurance premiums		213,377	232,588
Reinsurance recoverable on paid losses		82,582	49,506
Reinsurance recoverable on unpaid losses and loss adjustment expenses		779,276	809,518
Deferred policy acquisition costs		119,660	91,983
Accrued investment income		17,315	16,001
Goodwill and other intangible assets		6,451	6,807
Current income tax receivable, net		20,556	22,323
Deferred income tax, net		20,938	3,900
Other assets		52,030	67,643
Total assets		4,814,037	4,584,012
Other invested assets		1,960
Liabilities:
Reserves for losses and loss adjustment expenses		2,289,727	2,202,644
Unearned premiums		887,344	820,676
Reinsurance balances payable		108,980	107,411
Senior notes		263,728	263,580
Accounts payable and other liabilities		86,070	93,553
Total liabilities		3,635,849	3,487,864
Stockholders' equity:
Preferred stock, $.10 par value, authorized 1,000,000 shares, none issued	[1]
Common stock, $.10 par value, authorized 50,000,000 shares, issued 36,146,899 shares for 2016 and 35,884,538 shares for 2015	[1]	3,612	3,586
Additional paid-in capital	[1]	373,983	356,036
Treasury stock, at cost (7,022,760 shares for 2016 and 2015)	[1]	(155,801)	(155,801)
Retained earnings	[1]	947,519	868,723
Accumulated other comprehensive income	[1]	8,875	23,604
Total stockholders' equity	[1]	1,178,188	1,096,148
Total liabilities and stockholders' equity		$ 4,814,037	$ 4,584,012

[1] We completed a two-for-one stock split on January 20, 2017. All per share data has been retroactively restated on a post-split basis.