CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net sales	$ 813,502	$ 929,636	$ 2,541,144	$ 2,549,284
Operating costs and expenses:
Cost of sales	673,178	831,808	2,210,515	2,292,761
Selling, general and administrative expenses	53,476	43,412	152,932	130,080
Gain on sale of assets	(1,864)		(19,250)	(1,150)
Transaction related costs, restructuring and other, net	14,790	1	26,370	1,027
Total operating costs and expenses	739,580	875,221	2,370,567	2,422,718
Operating (loss) income	73,922	54,415	170,577	126,566
Interest expense, net	(14,638)	(16,703)	(43,574)	(50,092)
Loss on early redemption of debt				(1,100)
Foreign exchange (loss) gain	(192)	160	(594)	(780)
Income before income taxes	59,092	37,872	126,409	74,594
Provision for income taxes	19,756	3,514	38,141	13,521
Net income	$ 39,336	$ 34,358	$ 88,268	$ 61,073
Earnings per share:
Basic (in dollars per share)	$ 1.13	$ 0.99	$ 2.54	$ 1.75
Diluted (in dollars per share)	$ 1.12	$ 0.99	$ 2.53	$ 1.75
Dividends declared per share of common stock (in dollars per share)	$ 0.08		$ 0.16
Weighted average common shares:
Basic (in shares)	34,549	34,165	34,413	34,036
Diluted (in shares)	34,882	34,211	34,641	34,065