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DERIVATIVE FINANCIAL INSTRUMENTS Text (Details)
In Millions, unless otherwise specified
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
USD ($)
years
types
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value, Inputs, Level 1 [Member]
USD ($)
Dec. 31, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value, Inputs, Level 2 [Member]
USD ($)
Dec. 31, 2012
Not Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Not Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Hedge of Bucyrus Stock Price
Not Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Foreign Exchange Contract [Member]
USD ($)
May 19, 2011
Foreign Exchange Contract [Member]
Not Designated as Hedging Instrument [Member]
EUR (€)
Dec. 31, 2012
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Jan. 15, 2007
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2006
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Interest Expense [Member]
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Interest Expense [Member]
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Interest Expense [Member]
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Interest Expense [Member]
Fair Value Hedging [Member]
Interest Rate Swap [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Other Income (Expense) Net [Member]
Other Contract [Member]
Not Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Other Income (Expense) Net [Member]
Other Contract [Member]
Not Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Other Income (Expense) Net [Member]
Hedge of Bucyrus Stock Price
Not Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
Other Income (Expense) Net [Member]
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2011
Other Income (Expense) Net [Member]
Cash Flow Hedging [Member]
Foreign Exchange Contract [Member]
Designated as Hedging Instrument [Member]
USD ($)
Dec. 31, 2012
8% Senior Subordinated Notes due November 15, 2017 [Member]
Derivative [Line Items]                                                          
Derivative Instruments, Gain (Loss) Recognized in Income, Net             $ (0.8) $ (15.9)           $ 32.3 $ 19.3         $ 16.3 $ 19.3 $ 16.0 $ 0 $ 0 $ (16.4) $ (0.3)      
Derivatives, Derivative Types 2                                                        
Interest rate of debt securities (as a percent)                                                         8.00%
Variable interest rate The fair value of the interest rate swap agreement is based on LIBOR yield curves at the reporting date                                                        
Derivative, Notional Amount                       579.0         200.0                        
Derivative Asset, Fair Value, Gross Asset                 5.2 40.5                                      
Fair value of asset derivatives designated as hedging instruments                                                          
Interest rate contract           33.4                                              
Amount paid to exit interest rate swap agreement                               (5.4)                          
Period of time that currency exchange forward contracts generally mature (in years) 1 year                                                        
Foreign Currency Cash Flow Hedge Derivative at Fair Value, Net       0.4 5.9                                                
Notional amount of foreign currency derivatives classified under cash flow hedge                                   462.5                      
Unrealized gain on fair value of currency exchange forward cash flow hedge contracts                                   0.1                      
Payments for (Proceeds from) Derivative Instrument, Investing Activities 0 16.1 21.1               21.0                                    
Bucyrus stock, percentage of risk mitigated by derivative contracts (as a percent)                     95.00%                                    
Stock Consideration Received on Disposal, Restriction Period 1                                                        
Notional Amount of Foreign Currency Derivative Purchase Contracts                         450.0                                
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net                                   (10.3) (5.5)               (5.1) (0.8)  
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months (0.4)                                                        
Unrealized net gains (losses) included in Accumulated other comprehensive income                                                          
Balance at beginning of period (3.6) (2.1) (3.6)                                                    
Additional (losses) gains (1.9) (2.3) (2.0)                                                    
Amounts reclassified to earnings (5.1) (0.8) (3.5)                                                    
Balance at end of period $ (0.4) $ (3.6) $ (2.1)