Stock-based Compensation Textuals (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Aug. 31, 2016 |
Aug. 31, 2015 |
Aug. 31, 2016 |
Aug. 31, 2015 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Unrecognized stock-based compensation cost | $ 302.7 | $ 302.7 | ||
| Unrecognized stock-based compensation cost recognition period | 1 year 3 months 18 days | |||
| Capitalized stock-based compensation cost | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0 |
| Fair value of shares that vested during the period | $ 109.0 | |||