Annual report pursuant to Section 13 and 15(d)

SUBSEQUENT EVENTS - Additional Information (Detail)

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SUBSEQUENT EVENTS - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended 1 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Feb. 28, 2013
Subsequent Event
Subsequent Event [Line Items]        
Proceeds received from sale of businesses $ 2.5 $ 2.5 $ 181.7 $ 48.0