STATEMENT OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock Member	Additional Paid In Capital Member	Retained Earnings Member	Accumulated Other Comprehensive Income Member	Treasury Stock Member
Beginning Balance at Dec. 31, 2010		$ 48,558	$ 130,093	$ 1,052,429	$ (2,813)	$ (88,194)
Net earnings	126,389			126,389
Other Comprehensive Income (Loss), Net of Tax	(62,318)				(62,318)
Dividends paid				(14,893)
Stock options exercised, net		321	5,312			8,648
Other			(259)			259
Share-based compensation			8,046			1,575
Repurchase of common stock						(8,178)
Ending Balance at Dec. 31, 2011		48,879	143,192	1,163,925	(65,131)	(85,890)
Net earnings	113,844			113,844
Other Comprehensive Income (Loss), Net of Tax	9,623				9,623
Dividends paid				(16,392)
Stock options exercised, net		311	6,431			10,077
Restricted Stock			(6,233)			6,233
Other			(414)			414
Share-based compensation			8,907			521
Repurchase of common stock						(25,705)
Ending Balance at Dec. 31, 2012	1,312,592	49,190	151,883	1,261,377	(55,508)	(94,350)
Net earnings	137,981			137,981
Other Comprehensive Income (Loss), Net of Tax	80,767				80,767
Dividends paid				(18,377)
Stock options exercised, net		0	(5,728)			34,451
Restricted Stock			(2,127)			5,796
Other			(330)			330
Share-based compensation			6,920			430
Ending Balance at Dec. 31, 2013	$ 1,552,705	$ 49,190	$ 150,618	$ 1,380,981	$ 25,259	$ (53,343)