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Financial Instruments - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2018
Aug. 31, 2017
Debt Instrument [Line Items]        
Maximum time frame for foreign exchange contracts, months     15 months  
Amount of accumulated other comprehensive income expected to be reclassified to earnings in next 12 months $ 0.5   $ 0.5  
Fair Value Hedging | Foreign exchange contracts        
Debt Instrument [Line Items]        
Derivative, Notional Amount 370.9   370.9  
Other Income | Fair Value Hedging | Foreign exchange contracts        
Debt Instrument [Line Items]        
Foreign Currency Transaction Gain (Loss), Realized 0.5 $ 2.9 (2.1) $ 5.2
Other Income | Fair Value Hedging | Loans Payable        
Debt Instrument [Line Items]        
Foreign Currency Transaction Gain (Loss), Realized (1.1) $ (3.1) 1.1 $ (6.0)
Interest Rate Swap [Member] | Treasury Lock [Member]        
Debt Instrument [Line Items]        
Derivative, Notional Amount 100.0   100.0  
Notes Payable $ 250.0   $ 250.0  
Derivative, Fixed Interest Rate 3.25%   3.25%  
Five Point Seven Five Notes Due On Two Thousand Seventeen [Member]        
Debt Instrument [Line Items]        
Stated Note interest rate 5.75%   5.75%  
Debt Instrument, Annual Principal Payment $ 250.0   $ 250.0  
Term Loan Due 2020        
Debt Instrument [Line Items]        
Debt Instrument, Annual Principal Payment 180.0   180.0  
Term Loan Due Two Thousand Twenty Two [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Annual Principal Payment 156.3   156.3  
Corporate, Non-Segment [Member]        
Debt Instrument [Line Items]        
Payments for Rent     0.9  
Capital Lease Obligations Incurred 135.7      
Investment Building and Building Improvements 138.8   138.8  
Amortization 2.2   3.1  
Minimum [Member] | Term Loan Due Two Thousand Twenty Two [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Annual Principal Payment $ 56.3   $ 56.3