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Supplemental Balance Sheet Information | 12 Months Ended
--- | ---
Dec. 31, 2014
Supplemental Balance Sheet Information [Abstract] |
Supplemental Balance Sheet Information | Supplemental Balance Sheet Information
|  | December 31, 2014 |  | December 31, 2013
Cash and Cash Equivalents |  |  |  |
Cash and money market funds |  | $ | 29.5 |  |  | $ | 57.7 |
Commercial paper |  | 148.2 |  |  | 111.8 |
Total |  | $ | 177.7 |  |  | $ | 169.5 |
Trade Receivables - Net |  |  |  |
Billed trade receivables |  | $ | 128.7 |  |  | $ | 120.2 |
Unbilled trade receivables — Note 1 |  | 1.4 |  |  | 0.4 |
Trade receivables, gross |  | 130.1 |  |  | 120.6 |
Allowance for doubtful receivables |  | (0.8 | ) |  | (0.8 | )
Trade receivables - net |  | $ | 129.3 |  |  | $ | 119.8 |
Inventories |  |  |  |
Finished products |  | $ | 73.6 |  |  | $ | 72.5 |
Work-in-process |  | 66.7 |  |  | 75.9 |
Raw materials |  | 54.2 |  |  | 47.2 |
Operating supplies and repair and maintenance parts |  | 20.2 |  |  | 18.8 |
Total |  | $ | 214.7 |  |  | $ | 214.4 |
|  | December 31, 2014 |  | December 31, 2013
Prepaid Expenses and Other Current Assets |  |  |  |
Current derivative assets — Notes 10 and 11 |  | $ | 85.7 |  |  | $ | 2.0 |
Current deferred tax assets |  | 86.4 |  |  | 36.7 |
Short-term restricted cash |  | 0.3 |  |  | 0.3 |
Other |  | 6.2 |  |  | 5.2 |
Total |  | $ | 178.6 |  |  | $ | 44.2 |
Property, Plant and Equipment - Net |  |  |  |
Land and improvements |  | $ | 22.9 |  |  | $ | 22.6 |
Buildings and leasehold improvements |  | 63.8 |  |  | 53.0 |
Machinery and equipment |  | 509.8 |  |  | 425.6 |
Construction in progress |  | 25.2 |  |  | 66.0 |
Property, plant and equipment - gross |  | 621.7 |  |  | 567.2 |
Accumulated depreciation |  | (166.8 | ) |  | (137.9 | )
Property, plant and equipment - net |  | $ | 454.9 |  |  | $ | 429.3 |
Other Assets |  |  |  |
Derivative assets — Notes 10 and 11 |  | $ | — |  |  | $ | 79.8 |
Restricted cash |  | 10.0 |  |  | 9.3 |
Deferred financing costs |  | 5.9 |  |  | 8.9 |
Deferred compensation plan assets |  | 7.3 |  |  | 6.5 |
Other |  | 0.1 |  |  | 0.3 |
Total |  | $ | 23.3 |  |  | $ | 104.8 |
Other Accrued Liabilities |  |  |  |
Current derivative liabilities — Notes 10 and 11 |  | $ | 94.9 |  |  | $ | 1.8 |
Uncleared cash disbursements |  | 9.1 |  |  | 9.6 |
Accrued income taxes and taxes payable |  | 5.2 |  |  | 4.3 |
Accrued annual VEBA contribution |  | 13.7 |  |  | 16.0 |
Short-term environmental accrual — Note 9 |  | 2.3 |  |  | 2.8 |
Accrued interest |  | 3.7 |  |  | 3.7 |
Short-term deferred revenue — Note 1 |  | 0.2 |  |  | — |
Other |  | 3.7 |  |  | 6.6 |
Total |  | $ | 132.8 |  |  | $ | 44.8 |
|  | December 31, 2014 |  | December 31, 2013
Long-Term Liabilities |  |  |  |
Derivative liabilities — Notes 10 and 11 |  | $ | 1.9 |  |  | $ | 84.3 |
Income tax liabilities |  | 2.4 |  |  | 5.0 |
Workers’ compensation accruals |  | 21.5 |  |  | 23.3 |
Long-term environmental accrual — Note 9 |  | 17.0 |  |  | 20.0 |
Long-term asset retirement obligations |  | 4.4 |  |  | 4.0 |
Long-term deferred revenue - Note 1 |  | 0.5 |  |  | — |
Deferred compensation liability |  | 7.2 |  |  | 7.0 |
Long-term capital leases |  | 0.1 |  |  | 0.1 |
Other long-term liabilities |  | 3.3 |  |  | 2.7 |
Total |  | $ | 58.3 |  |  | $ | 146.4 |
Long-Term Debt — Note 3 |  |  |  |
Senior notes |  | $ | 225.0 |  |  | $ | 225.0 |
Cash convertible senior notes |  | — |  |  | 163.5 |
Total |  | $ | 225.0 |  |  | $ | 388.5 |

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