CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total		Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss), net of taxes	Treasury stock, at cost
Beginning balance at Dec. 31, 2013			$ 64	$ 407,056	$ 1,000,312	$ 122,214	$ (430,341)
Options exercised, 2015, 80,660 shares; 2014, 386,616 shares			0
Conversion of common stock units, 2015, 8,293 shares; 2014, 10,834 shares			0
Conversion of restricted stock units, 2015, 191,998 shares; 2014, 168,049 shares			0
Options exercised and conversion of common stock units and restricted stock units				12,711
Share-based compensation expense				953
Net income	$ 74,175				74,175
Cash dividends, 2015, $0.75 per share; 2014, $0.69 per share					(29,421)
Change in net unrealized gains and losses on fixed maturities and equity securities	136,017	[1],[2]				136,017
Change in net funded status of pension and other postretirement benefit obligations	0	[1]				0
Acquisition of shares, 2015, 476,498 shares; 2014, 190,876 shares							(5,411)
Ending balance at Sep. 30, 2014	1,288,329		64	420,720	1,045,066	258,231	(435,752)
Beginning balance at Dec. 31, 2014	1,336,463		64	422,232	1,065,318	284,601	(435,752)
Options exercised, 2015, 80,660 shares; 2014, 386,616 shares			0
Conversion of common stock units, 2015, 8,293 shares; 2014, 10,834 shares			0
Conversion of restricted stock units, 2015, 191,998 shares; 2014, 168,049 shares			1
Options exercised and conversion of common stock units and restricted stock units				11,926
Share-based compensation expense				5,032
Net income	72,442				72,442
Cash dividends, 2015, $0.75 per share; 2014, $0.69 per share					(31,975)
Change in net unrealized gains and losses on fixed maturities and equity securities	(70,936)	[1],[3]				(70,936)
Change in net funded status of pension and other postretirement benefit obligations	0	[1]				0
Acquisition of shares, 2015, 476,498 shares; 2014, 190,876 shares							(15,775)
Ending balance at Sep. 30, 2015	$ 1,307,178		$ 65	$ 439,190	$ 1,105,785	$ 213,665	$ (451,527)

[1] All amounts are net of tax.

[2] The pretax amounts reclassified from accumulated other comprehensive income (loss), $3,512 and $8,652, are included in net realized investment gains and losses and the related tax expenses, $1,229 and $3,028, are included in income tax expense in the Consolidated Statements of Operations for the three and nine months ended September 30, 2014, respectively.

[3] The pretax amounts reclassified from accumulated other comprehensive income (loss), $1,545 and $9,165, are included in net realized investment gains and losses and the related tax expenses, $541 and $3,208, are included in income tax expense in the Consolidated Statements of Operations for the three and nine months ended September 30, 2015, respectively.