|
Accumulated Other Comprehensive Loss (Details) (USD $)
|
6 Months Ended | |
|---|---|---|
|
May 31, 2014
|
Nov. 30, 2013
|
|
| Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||
| Balance, December 1, 2013 | $ (11,659,000) | |
| Other comprehensive income (loss) before reclassification, net of tax | 1,245,000 | |
| Balance, May 31, 2014 | (10,414,000) | |
|
Foreign Currency Translation Adjustment [Member]
|
||
| Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||
| Balance, December 1, 2013 | (9,249,000) | |
| Other comprehensive income (loss) before reclassification, net of tax | 1,138,000 | |
| Balance, May 31, 2014 | (8,111,000) | |
|
Unrealized Gains (Losses) on Investments [Member]
|
||
| Accumulated Other Comprehensive Income (Loss) [Roll Forward] | ||
| Balance, December 1, 2013 | (2,410,000) | |
| Other comprehensive income (loss) before reclassification, net of tax | 107,000 | |
| Balance, May 31, 2014 | (2,303,000) | |
| Tax effect on accumulated unrealized losses on investments | $ 1,300,000 | $ 1,400,000 |