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LEASES (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Leases      
Rent expense $ 58.2 $ 52.3 $ 49.6
Rent expenses for short-term and cancelable equipment 20.5 17.8 38.4
Future minimum payments under operating leases      
2014 22.0    
2015 18.1    
2016 11.9    
2017 8.0    
2018 2.8    
Thereafter 7.1    
Total minimum lease payments 69.9    
Minimum
     
Leases      
Term of existing operating leases 1 year    
Maximum
     
Leases      
Term of existing operating leases 50 years    
Terminal Facility
     
Leases      
Rent expense $ 35.6 $ 31.7 $ 26.5