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Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Income Taxes [Line Items]    
Income tax provision (benefit) $ (8.5) $ (9.9)
Income tax benefit rate 147.00% 54.00%
Net earnings (loss) from continuing operations 2.7 (8.4)
Statutory U.S. federal tax rate   35.00%
Foreign [Member]
   
Income Taxes [Line Items]    
Payments made to a foreign jurisdiction 10  
Interest paid to foreign jurisdiction $ 2