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, 2009		$ 48,214	$ 111,707	$ 964,978	$ (19,605)	$ (94,149)
Net earnings	102,180
Other comprehensive income, net	16,792				16,792
Dividends paid				(14,729)
Stock options exercised, net		344	6,937			4,026
Other			(319)			319
Share-based compensation			11,768			1,610
Repurchases of common stock	0
Ending Balance at Dec. 31, 2010		48,558	130,093	1,052,429	(2,813)	(88,194)
Net earnings	126,389
Other comprehensive income, net	(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
Repurchases of common stock	8,178					(8,178)
Ending Balance at Dec. 31, 2011	1,204,975	48,879	143,192	1,163,925	(65,131)	(85,890)
Net earnings	113,844
Other comprehensive income, net	9,623				9,623
Dividends paid				(16,392)
Stock options exercised, net		311	6,431			10,077
StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures			(6,233)			6,233
Other			(414)			414
Share-based compensation			8,907			521
Repurchases of common stock	25,705					(25,705)
Ending Balance at Dec. 31, 2012	$ 1,312,592	$ 49,190	$ 151,883	$ 1,261,377	$ (55,508)	$ (94,350)