INCOME TAXES: Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Nov. 30, 2015 |
Nov. 30, 2014 |
Nov. 30, 2013 |
|
| Income Tax Contingency [Line Items] | |||
| Unrecognized tax benefits that would affect effective tax rate if realized | $ 20,901 | ||
| Unrecognized tax benefits, accrual for interest and penalty | 2,992 | $ 3,068 | |
| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Unrecognized tax benefits, beginning balance | 21,874 | 21,857 | $ 19,995 |
| Additions based on tax positions related to the current year | 3,485 | 3,943 | 2,574 |
| Additions for tax positions of prior years | 923 | 118 | 343 |
| Reductions for tax positions of prior years | (3,609) | (301) | |
| Lapse of statue of limitations | (3,441) | (400) | (781) |
| Increase due to translation of foreign currency | 27 | ||
| Decrease due to translation of foreign currency | (26) | (35) | |
| Unrecognized tax benefits, ending balance | $ 22,815 | $ 21,874 | $ 21,857 |