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Subsequent Event (Table) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Accounts receivable, net | $ 134.8 | $ 162.0
Other current assets | 19.2 | 64.8
Goodwill | 6.8 | 6.8
Assets | 2,266.4 | 3,549.3
Accounts payable and accrued liabilities | 145.8 | 120.1
Deferred revenue and advances from customers | 125.5 | 205.2
Liabilities | 1,614.8 | 1,575.9
NAC [Member] |  |
Accounts receivable, net | 7.6 |
Other current assets | 1.6 |
Property, plant and equipment, net | 0.5 |
Goodwill | 6.8 |
Assets | 16.5 |
Accounts payable and accrued liabilities | 11.2 |
Deferred revenue and advances from customers | 2.5 |
Liabilities | $ 13.7 |

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