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Stock-Based Compensation - Summary of LTPP awards (Details) - Performance Shares - $ / shares
shares in Thousands
6 Months Ended
May 31, 2018
May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Outstanding at beginning of period, Number of Shares 220 201
Granted, Number of Shares 86 78
Vested, Number of Shares (59) (43)
Outstanding at end of period, Number of Shares 247 236
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]    
Outstanding at beginning of period, Weighted-Average Grant-Date Fair Value $ 84.31 $ 78.10
Granted, Weighted-Average Grant-Date Fair Value 101.90 89.96
Vested, Weighted-Average Grant-Date Fair Value 74.02 69.04
Outstanding at end of period, Weighted-Average Grant-Date Fair Value $ 92.91 $ 83.63