Description of the Business and Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2011 year	Dec. 31, 2010	Dec. 31, 2009
Intangible Assets
Gross assets	$ 632,120,000	$ 632,120,000
Accumulated amortization	181,227,000	142,880,000
Net assets	450,893,000	489,240,000
Weighted Average Amortization Period (in years)	19
Amortization expense	38,300,000	44,300,000	52,400,000
Estimated amortization expense
2012	34,258,000
2013	30,476,000
2014	26,090,000
2015	23,390,000
2016	20,902,000
Thereafter	125,977,000
Total	261,093,000
Impairment of Long-Lived Tangible and Finite-Lived Intangible Assets
Impairment charges		12,805,000
Trademarks
Intangible Assets
Gross assets	189,800,000	189,800,000
Customer and scrap generator relationships
Intangible Assets
Gross assets	408,400,000	408,400,000
Useful life minimum (in months or years)	10
Useful life maximum (in years)	25
Weighted Average Amortization Period (in years)	20
Trademarks
Intangible Assets
Gross assets	19,700,000	19,700,000
Useful life minimum (in months or years)	4
Useful life maximum (in years)	12
Weighted Average Amortization Period (in years)	12
Other
Intangible Assets
Gross assets	$ 14,220,000	$ 14,220,000
Useful life minimum (in months or years)	3
Useful life maximum (in years)	6
Weighted Average Amortization Period (in years)	5