v3.5.0.2
FAIR VALUE MEASUREMENTS: (Details) - USD ($)
$ in Thousands
9 Months Ended
Aug. 31, 2016
Nov. 30, 2015
Fair Value, Measurements, Recurring [Member]    
Assets    
Cash equivalents $ 30,047 $ 208,597
Restricted cash 4,845 88,558
Available-for-sale securities 1,696 1,910
Forward foreign currency exchange contracts 1,939 1,753
Interest rate swaps 0 19
Liabilities:    
Forward foreign currency exchange contracts 1,085 466
Interest rate swaps 13,909 5,808
Acquisition-related contingent consideration 0 433
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]    
Assets    
Cash equivalents 30,047 208,597
Restricted cash 4,845 88,558
Available-for-sale securities 1,696 1,910
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]    
Assets    
Forward foreign currency exchange contracts 1,939 1,753
Interest rate swaps 0 19
Liabilities:    
Forward foreign currency exchange contracts 1,085 466
Interest rate swaps 13,909 5,808
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]    
Liabilities:    
Acquisition-related contingent consideration $ 0 $ 433
Minimum [Member]    
Liabilities:    
Business acquisition, contingent consideration, profitability measurements, term 1 year  
Maximum [Member]    
Liabilities:    
Business acquisition, contingent consideration, profitability measurements, term 3 years