Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues	$ 565,252	$ 579,950	$ 1,112,231	$ 1,129,952
Costs and expenses:
Cost of sales	418,040	423,765	826,617	827,154
Selling, general and administrative	80,831	92,663	159,258	183,621
Amortization expense	3,155	3,155	6,311	6,311
Total costs and expenses	502,026	519,583	992,186	1,017,086
Gain from litigation settlement, net (Note 6)				490,085
Earnings from operations	63,226	60,367	120,045	602,951
Other expenses and income:
Interest expense	11,726	17,837	21,501	37,993
Interest income	(122)	(248)	(261)	(394)
Loss on extinguishment of debt (Note 3)	2,966	23,873	16,318	23,873
Other income, net	(1,436)	(561)	(2,312)	(2,351)
Total other expenses (income), net	13,134	40,901	35,246	59,121
Earnings (loss) before income taxes	50,092	19,466	84,799	543,830
Income tax expense (Note 1)	19,840	8,361	33,136	210,197
Net earnings	$ 30,252	$ 11,105	$ 51,663	$ 333,633
Net earnings per common share, basic (Note 7)	$ 0.63	$ 0.22	$ 1.06	$ 6.77
Net earnings per common share, diluted (Note 7)	$ 0.60	$ 0.21	$ 1.01	$ 6.41
Weighted-average common shares outstanding, basic (Note 7)	47,877	49,531	48,903	49,251
Weighted-average common shares outstanding, diluted (Note 7)	50,167	52,499	51,250	52,028