FAIR VALUE MEASUREMENTS: (Details) - USD ($)
$ in Thousands |
6 Months Ended |
|
May. 31, 2015 |
Nov. 30, 2014 |
| Fair Value, Measurements, Recurring [Member] | Level 1 [Member] |
|
|
| Assets |
|
|
| Cash equivalents |
$ 54,822
|
$ 29,823
|
| Restricted cash |
27,517
|
34,269
|
| Trading securities |
0
|
1,987
|
| Available-for-sale securities |
2,230
|
1,740
|
| Fair Value, Measurements, Recurring [Member] | Level 2 [Member] |
|
|
| Assets |
|
|
| Forward foreign currency exchange contracts |
2,057
|
4,532
|
| Liabilities: |
|
|
| Forward foreign currency exchange contracts |
202
|
145
|
| Interest rate swaps |
1,887
|
0
|
| Fair Value, Measurements, Recurring [Member] | Level 3 [Member] |
|
|
| Liabilities: |
|
|
| Acquisition-related contingent consideration |
433
|
867
|
| Fair Value, Measurements, Recurring [Member] | Total [Member] |
|
|
| Assets |
|
|
| Cash equivalents |
54,822
|
29,823
|
| Restricted cash |
27,517
|
34,269
|
| Trading securities |
0
|
1,987
|
| Available-for-sale securities |
2,230
|
1,740
|
| Forward foreign currency exchange contracts |
2,057
|
4,532
|
| Liabilities: |
|
|
| Forward foreign currency exchange contracts |
202
|
145
|
| Interest rate swaps |
1,887
|
0
|
| Acquisition-related contingent consideration |
$ 433
|
$ 867
|
| Minimum [Member] |
|
|
| Liabilities: |
|
|
| Business acquisition, contingent sonsideration, profitability measurements, term |
1 year
|
|
| Maximum [Member] |
|
|
| Liabilities: |
|
|
| Business acquisition, contingent sonsideration, profitability measurements, term |
3 years
|
|