v2.4.0.6
Income Taxes (Effective Income Tax Expense (Benefit) Rate) (Details)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax [Line Items]      
Federal statutory tax expense (benefit) rate 35.00% (35.00%) (35.00%)
State tax expense (benefit), net of federal benefit 3.20% 6.50% 2.80%
Depletion in excess of basis (0.20%) 0.00% (1.30%)
Effective Income Tax Rate Reconciliation Nondeductible Expense Preferred Interest Expense 2.00% 0.40% 0.50%
Effective Income Tax Rate Reconciliation, Tax Settlements, Domestic (4.70%) 0.00% 0.00%
Valuation allowances (32.30%) 56.70% 33.60%
Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance Due To Reconsolidation 0.00% (36.00%) 0.00%
Effective Income Tax Rate Reconciliation Change in Deferred Tax Assets, Valuation Allowance Due to Foreign Taxes (8.20%) 0.00% 0.00%
Foreign taxes 3.70% (0.90%) 9.90%
Non-deductible reorganization items 0.10% 0.50% 0.30%
Intraperiod allocation 4.60% 19.90% (40.10%)
Bankruptcy settlement 0.00% (15.70%) 0.00%
Change in unrecognized tax benefits 5.10% (6.60%) 0.60%
Permanent differences and other items 0.40% (0.20%) (0.90%)
Effective income tax expense (benefit) rate 8.70% (10.40%) (29.60%)