Supplemental Financial Statement Data (Narrative) (Details) - $ / shares |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Nov. 30, 2020 |
Aug. 31, 2020 |
May 31, 2020 |
Feb. 29, 2020 |
Nov. 30, 2019 |
Aug. 31, 2019 |
May 31, 2019 |
Feb. 28, 2019 |
Nov. 30, 2020 |
Nov. 30, 2019 |
Nov. 30, 2018 |
|
Supplemental Financial Statement Data [Abstract] | |||||||||||
Dividends paid per share (usd per share) | $ 0.31 | $ 0.31 | $ 0.31 | $ 0.31 | $ 0.29 | $ 0.28 | $ 0.29 | $ 0.28 | $ 1.24 | $ 1.14 | $ 1.04 |
Common Stock, Dividends, Per Share, Declared | $ 0.65 | $ 0.31 | $ 0.31 | $ 0 | $ 0.60 | $ 0.28 | $ 0.29 | $ 0 | $ 1.27 | $ 1.17 | $ 1.07 |