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Organization and Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012 Segment Subsidiary	Dec. 31, 2011
Organization and Basis of Presentation (Textual) [Abstract]
Deferred tax assets	$ 148.0	$ 165.5
Non-current deferred tax liabilities	411.5	467.2
Organization and Basis of Presentation (Additional Textual) [Abstract]
Number of business segments	4
Number of subsidiaries	3
Misclassification adjustment of current deferred tax assets		65
Misclassification adjustment of noncurrent deferred tax liabilities		65
Scenario, Previously Reported [Member]
Organization and Basis of Presentation (Textual) [Abstract]
Deferred tax assets		230.0
Non-current deferred tax liabilities		$ 532.0

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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