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, 74,233 shares; 2014, 382,956 shares			0
Conversion of common stock units, 2015, 8,293 shares; 2014, 10,834 shares			0
Conversion of restricted stock units, 2015, 182,888 shares; 2014, 91,353 shares			0
Options exercised and conversion of common stock units and restricted stock units				10,301
Share-based compensation expense				635
Net income	$ 48,818				48,818
Cash dividends, 2015, $0.50 per share; 2014, $0.46 per share					(19,614)
Change in net unrealized gains and losses on fixed maturities and equity securities	147,565	[1],[2]				147,565
Change in net funded status of pension and other postretirement benefit obligations	0	[1]				0
Acquisition of shares, 2015, 23,500 shares; 2014, 136,976 shares							(3,867)
Ending balance at Jun. 30, 2014	1,283,143		64	417,992	1,029,516	269,779	(434,208)
Beginning balance at Dec. 31, 2014	1,336,463		64	422,232	1,065,318	284,601	(435,752)
Options exercised, 2015, 74,233 shares; 2014, 382,956 shares			0
Conversion of common stock units, 2015, 8,293 shares; 2014, 10,834 shares			0
Conversion of restricted stock units, 2015, 182,888 shares; 2014, 91,353 shares			1
Options exercised and conversion of common stock units and restricted stock units				11,674
Share-based compensation expense				3,931
Net income	50,458				50,458
Cash dividends, 2015, $0.50 per share; 2014, $0.46 per share					(21,371)
Change in net unrealized gains and losses on fixed maturities and equity securities	(73,768)	[1],[3]				(73,768)
Change in net funded status of pension and other postretirement benefit obligations	0	[1]				0
Acquisition of shares, 2015, 23,500 shares; 2014, 136,976 shares							(716)
Ending balance at Jun. 30, 2015	$ 1,306,672		$ 65	$ 437,837	$ 1,094,405	$ 210,833	$ (436,468)

[1] All amounts are net of tax.

[2] The pretax amounts reclassified from accumulated other comprehensive income (loss), $3,455 and $5,140, are included in net realized investment gains and losses and the related tax expenses, $1,210 and $1,799, are included in income tax expense in the Consolidated Statements of Operations for the three and six months ended June 30, 2014, respectively.

[3] The pretax amounts reclassified from accumulated other comprehensive income (loss), $1,786 and $7,620, are included in net realized investment gains and losses and the related tax expenses, $625 and $2,667, are included in income tax expense in the Consolidated Statements of Operations for the three and six months ended June 30, 2015, respectively.