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Amortizable Intangible Assets (Detail) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 30, 2014
Trade names
Dec. 31, 2013
Trade names
Jun. 30, 2014
Customer Relationships
Dec. 31, 2013
Customer Relationships
Jun. 30, 2014
Patents
Dec. 31, 2013
Patents
Jun. 30, 2014
Noncompete Agreements
Dec. 31, 2013
Noncompete Agreements
Jun. 30, 2014
Minimum
Trade names
Jun. 30, 2014
Minimum
Customer Relationships
Jun. 30, 2014
Minimum
Patents
Jun. 30, 2014
Minimum
Noncompete Agreements
Jun. 30, 2014
Maximum
Trade names
Jun. 30, 2014
Maximum
Customer Relationships
Jun. 30, 2014
Maximum
Patents
Jun. 30, 2014
Maximum
Noncompete Agreements
Finite-Lived Intangible Assets [Line Items]                                    
Gross Carrying Amount $ 545.2 $ 544.7 $ 167.3 $ 166.8 $ 333.0 $ 333.0 $ 43.5 $ 43.5 $ 1.4 $ 1.4                
Accumulated Amortization (227.7) (207.0) (78.7) (73.9) (110.1) (100.4) (37.5) (31.4) (1.4) (1.3)                
Net $ 317.5 $ 337.7 $ 88.6 $ 92.9 $ 222.9 $ 232.6 $ 6.0 $ 12.1 $ 0 $ 0.1                
Amortization Period (Years)                     3 years 15 years 4 years 5 years 20 years 20 years 20 years 10 years