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Employee Benefit and Stock Plans (Narrative) (Details) |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 07, 2021 $ / shares | Oct. 08, 2020 $ / shares | Oct. 03, 2019 $ / shares | Nov. 30, 2021 USD ($) $ / shares shares | Nov. 30, 2020 USD ($) $ / shares shares | Nov. 30, 2019 USD ($) $ / shares shares | May 31, 2021 shares | Nov. 30, 2018 shares | Apr. 07, 2016 shares | Apr. 03, 2014 shares
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  | 0 | 0 | 0 |  |  |  |
Exercises in period, total intrinsic value | $ |  |  |  | $ 22,100,000 | $ 48,200,000 | $ 37,100,000 |  |  |  |
Intrinsic value of stock options outstanding | $ |  |  |  | 40,900,000 | 48,900,000 | 89,900,000 |  |  |  |
Intrinsic value of stock options exercisable | $ |  |  |  | $ 40,900,000 | $ 48,900,000 | $ 89,900,000 |  |  |  |
Employee stock options/other (in shares) |  |  |  | 788,321 | 1,694,767 | 2,300,004 |  |  |  |
Shares of common stock held in trust (in shares) |  |  |  | 6,705,247 | 7,124,317 |  | 6,705,247 |  |  |
Stock options |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Total unrecognized stock-based compensation expense related to unvested stock option awards | $ |  |  |  | $ 0 |  |  |  |  |  |
Restricted stock |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Total unrecognized stock-based compensation expense related to unvested stock option awards | $ |  |  |  | $ 15,000,000 |  |  |  |  |  |
Minimum period of restriction imposed on share grant lapse |  |  |  | 3 years |  |  |  |  |  |
Unrecognized share-based compensation cost weighted average period |  |  |  | 3 years |  |  |  |  |  |
Granted, weighted average per share grant date fair value (in dollars per share) | $ / shares |  |  |  | $ 40.55 | $ 35.57 | $ 31.67 |  |  |  |
Granted (in shares) |  |  |  | 286,709 | 265,187 | 282,523 |  |  |  |
Non vested other than option number (in shares) |  |  |  | 431,191 | 423,215 | 500,066 |  | 555,457 |  |
PSUs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Total unrecognized stock-based compensation expense related to unvested stock option awards | $ |  |  |  | $ 41,000,000 |  |  |  |  |  |
Minimum period of restriction imposed on share grant lapse |  |  |  | 3 years |  |  |  |  |  |
Unrecognized share-based compensation cost weighted average period |  |  |  | 3 years |  |  |  |  |  |
Granted, weighted average per share grant date fair value (in dollars per share) | $ / shares | $ 39.31 | $ 40.06 | $ 33.10 | $ 39.67 | $ 40.05 | $ 30.45 |  |  |  |
Granted (in shares) |  |  |  | 465,064 | 397,452 | 468,957 |  |  |  |
Non vested other than option number (in shares) |  |  |  | 1,392,864 | 1,346,870 | 1,262,664 |  | 1,090,967 |  |
Director Plan SARs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Non option outstanding number (in shares) |  |  |  | 70,849 | 155,569 | 224,674 |  |  |  |
Non-Employee Director Deferred Common Stock |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Non option outstanding number (in shares) |  |  |  | 469,171 | 548,952 | 519,160 |  |  |  |
Minimum | PSUs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Grant award percentage |  |  |  | 0.00% |  |  |  |  |  |
Maximum | PSUs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Grant award percentage |  |  |  | 200.00% |  |  |  |  |  |
Savings Plan |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Aggregate cost related to saving plan | $ |  |  |  | $ 7,200,000 | $ 6,500,000 | $ 6,900,000 |  |  |  |
Net assets invested in funds consisting common stock |  |  |  | 4.00% | 4.00% | 5.00% |  |  |  |
2014 Equity Incentive Plan |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Number of shares authorized for issuance of stock based awards to employees |  |  |  | 12,300,000 |  |  |  |  | 7,500,000 | 4,800,000
Grant of stock option, Reduce the plan share capacity per share |  |  |  |  |  |  |  |  | 1 |
Grant of restricted stock, reduce the plan share capacity per share |  |  |  |  |  |  |  |  | 1.78 |
Share based payments award terms of award |  |  |  | 10 years |  |  |  |  |  |
2010 Equity Incentive Plan |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  | 0 |  |  |  |  |  |
PSU 2017 | PSUs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  | 119,733 |  |  |  |  |  |
PSU 2016 | PSUs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  | 108,511 |  |  |  |  |
PSU 2015 | PSUs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 119,260 |  |  |  |
Director Plan SARs |  |  |  |  |  |  |  |  |  |
Employee Benefit and Stock Plans (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Share based payments award terms of award |  |  |  | 15 years |  |  |  |  |  |

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