Income Taxes - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
May 31, 2019 |
May 31, 2018 |
May 31, 2019 |
May 31, 2018 |
|
| Income Tax Disclosure [Abstract] | ||||
| Income tax benefit resulting from the Tax Act | $ 143.9 | |||
| Effective income tax rate (percent) | 22.90% | 22.20% | 23.90% | (232.80%) |