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Stock-Based Compensation - Summary of LTPP awards (Details) - Performance Shares - $ / shares
shares in Thousands
9 Months Ended
Aug. 31, 2017
Aug. 31, 2016
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 201 192
Granted, Number of Shares 78 108
Vested, Number of Shares (43) (18)
Forfeited, Number of Shares 0 (8)
Outstanding at end of period, Number of Shares 236 274
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 $ 78.10 $ 70.94
Granted, Weighted-Average Grant-Date Fair Value 89.96 86.40
Vested, Weighted-Average Grant-Date Fair Value 69.04 64.74
Forfeited, Weighted-Average Grant-Date Fair Value 0.00 79.45
Outstanding at end of period, Weighted-Average Grant-Date Fair Value $ 83.63 $ 77.22