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Leases - Schedule of Future Minimum Rental Commitments Under Non-Cancelable Operating Leases (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Leases [Abstract]  
2014 $ 47.6
2015 39.2
2016 27.7
2017 20.4
2018 16.0
Thereafter $ 41.2