Income Taxes - Additional Information (Detail) - USD ($) $ in Millions |
May 31, 2016 |
Nov. 30, 2015 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Unrecognized tax benefits | $ 105.6 | $ 107.9 |
| Unrecognized tax benefits that would impact effective tax rate in future | 70.4 | 71.9 |
| Accrued interest on unrecognized tax benefits | $ 36.2 | $ 32.8 |