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Intangible Assets and Goodwill (Schedule of Goodwill) (Details) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended |
|---|---|
|
May 31, 2014
|
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| Goodwill and Intangible Assets Disclosure [Abstract] | |
| Balance, November 30, 2013 | $ 224,286 |
| Additions | 6,433 |
| Translation adjustments | (38) |
| Balance, May 31, 2014 | $ 230,681 |