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Long-Term Incentive Employee Compensation - Long-Term Incentive Employee Compensation Costs (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Share Based Compensation Arrangement [Line Items]
Transformation costs	$ 0.5	$ 13.0

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- Details

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- Definition

Transformation Related Employee Stock Based Compensation Costs

+ References

No definition available.

+ Details

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