PENSION AND EMPLOYEE BENEFITS PLANS: (Net Periodic Pension Costs and Benefits Paid) (Details) (Foreign Pension Plan, Defined Benefit [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
May 31, 2014
May 31, 2013
May 31, 2014
May 31, 2013
Foreign Pension Plan, Defined Benefit [Member]
       
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]        
Service cost $ 345 $ 146 $ 552 $ 308
Interest cost 159 37 227 77
Expected return on plan assets (17) (15) (34) (31)
Amortization of net loss 140 0 176 0
Net periodic pension costs 627 168 921 354
Defined Benefit Plan, Contributions by Employer $ 312 $ 164 $ 461 $ 337