Consolidated Statements Of Operations (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Consolidated Statements Of Operations
Net sales	$ 925,049	$ 818,389	$ 1,792,301	$ 1,596,723
Cost of sales	757,954	692,365	1,457,622	1,413,019
Gross profit	167,095	126,024	334,679	183,704
Selling, general and administrative expenses	28,726	26,487	55,673	49,738
Income from operations	138,369	99,537	279,006	133,966
Other income (expense)
Interest expense	(12,802)	(8,784)	(25,722)	(17,572)
Other income (expense), net	1,632	(180)	2,839	914
Income before income taxes	127,199	90,573	256,123	117,308
Provision for income taxes	46,150	33,631	91,530	42,719
Net income	$ 81,049	$ 56,942	$ 164,593	$ 74,589
Earnings per share:
Basic	$ 1.22	$ 0.86	$ 2.48	$ 1.13
Diluted	$ 1.21	$ 0.86	$ 2.46	$ 1.13
Weighted average shares outstanding:
Basic	65,999,090	65,458,705	65,873,023	65,426,388
Diluted	66,425,065	65,606,753	66,269,823	65,565,018
Dividends per common share	$ 0.0635	$ 0.0575	$ 0.1270	$ 0.1150