Earnings Per Share (Narrative) (Details) - shares shares in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
May. 31, 2015 |
May. 31, 2014 |
May. 31, 2015 |
May. 31, 2014 |
|
| Earnings Per Share [Abstract] | ||||
| Number of shares excluded from the calculation of diluted earnings per share | 247 | 501 | 250 | 399 |