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Supplemental Balance Sheet Information | 12 Months Ended
--- | ---
Dec. 31, 2011
Supplemental Balance Sheet Information [Abstract] |
Supplemental Balance Sheet Information | Supplemental Balance Sheet Information
|  | December 31, 2011 |  | December 31, 2010
Trade Receivables. |  |  |  |
Billed trade receivables |  | $ | 98.9 |  |  | $ | 82.5 |
Unbilled trade receivables — Note 1 |  | 0.9 |  |  | 1.1 |
Trade receivables, gross |  | 99.8 |  |  | 83.6 |
Allowance for doubtful receivables |  | (0.9 | ) |  | (0.6 | )
Trade receivables, net |  | $ | 98.9 |  |  | $ | 83.0 |
Inventories. |  |  |  |
Finished products |  | $ | 75.9 |  |  | $ | 53.8 |
Work in process |  | 57.5 |  |  | 49.6 |
Raw materials |  | 58.1 |  |  | 50.9 |
Operating supplies and repairs and maintenance parts |  | 14.2 |  |  | 13.2 |
Total |  | $ | 205.7 |  |  | $ | 167.5 |
Prepaid Expenses and Other Current Assets. |  |  |  |
Current derivative assets — Notes 12 and 13 |  | $ | — |  |  | $ | 22.1 |
Current deferred tax assets |  | 63.0 |  |  | 46.8 |
Current portion of option premiums paid - Notes 12 and 13 |  | 0.4 |  |  | 5.6 |
Short-term restricted cash |  | 7.8 |  |  | 0.9 |
Prepaid taxes |  | 3.8 |  |  | 1.3 |
Prepaid expenses |  | 3.9 |  |  | 3.4 |
Total |  | $ | 78.9 |  |  | $ | 80.1 |
Property, Plant and Equipment. |  |  |  |
Land and land improvements |  | $ | 22.6 |  |  | $ | 23.3 |
Buildings and leasehold improvements |  | 45.9 |  |  | 43.5 |
Machinery and equipment |  | 356.7 |  |  | 338.0 |
Construction in progress |  | 24.1 |  |  | 7.7 |
Active property, plant and equipment, gross |  | 449.3 |  |  | 412.5 |
Accumulated depreciation |  | (86.9 | ) |  | (63.9 | )
Active property, plant, and equipment, net |  | 362.4 |  |  | 348.6 |
Idled equipment |  | 5.4 |  |  | 5.5 |
Property, plant, and equipment, net |  | $ | 367.8 |  |  | $ | 354.1 |
Other Assets. |  |  |  |
Derivative assets — Notes 12 and 13 |  | $ | 46.2 |  |  | $ | 50.8 |
Option premiums paid — Notes 12 and 13 |  | 0.1 |  |  | 0.6 |
Restricted cash |  | 10.4 |  |  | 16.3 |
Long-term income tax receivable |  | 2.8 |  |  | 2.9 |
Deferred financing costs |  | 7.8 |  |  | 7.7 |
Available for sale securities |  | 4.9 |  |  | 4.6 |
Other |  | 0.1 |  |  | 0.1 |
Total |  | $ | 72.3 |  |  | $ | 83.0 |
Other Accrued Liabilities. |  |  |  |
Current derivative liabilities — Notes 12 and 13 |  | $ | 14.8 |  |  | $ | 8.9 |
Current portion of option premiums received — Notes 12 and 13 |  | 0.1 |  |  | 7.0 |
Current portion of income tax liabilities |  | — |  |  | 1.1 |
Accrued income taxes and taxes payable |  | 2.6 |  |  | 1.8 |
Accrued annual VEBA contribution |  | — |  |  | 2.1 |
Accrued freight |  | 2.4 |  |  | 1.9 |
Short-term environmental accrual — Note 11 |  | 1.2 |  |  | 1.1 |
Accrued interest |  | 2.3 |  |  | 2.1 |
Short-term deferred revenue — Note 1 |  | 13.5 |  |  | 10.8 |
Other |  | 4.1 |  |  | 5.2 |
Total |  | $ | 41.0 |  |  | $ | 42.0 |
Long-term Liabilities. |  |  |  |
Derivative liabilities — Notes 12 and 13 |  | $ | 55.5 |  |  | $ | 62.2 |
Option premiums received — Notes 12 and 13 |  | 0.1 |  |  | 0.3 |
Income tax liabilities |  | 13.4 |  |  | 12.9 |
Workers’ compensation accruals |  | 20.8 |  |  | 15.9 |
Long-term environmental accrual — Note 11 |  | 20.8 |  |  | 19.1 |
Long-term asset retirement obligations |  | 3.8 |  |  | 3.8 |
Long-term deferred revenue - Note 1 |  | 3.3 |  |  | 13.2 |
Deferred compensation liability |  | 5.1 |  |  | 4.9 |
Other long-term liabilities |  | 3.2 |  |  | 2.4 |
Total |  | $ | 126.0 |  |  | $ | 134.7 |

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