LONG-TERM STOCK INCENTIVE PLAN - Additional Information (Details)	12 Months Ended
	Nov. 30, 2015 USD ($) CompensationPlan $ / shares shares	Nov. 30, 2014 USD ($) $ / shares shares	Nov. 30, 2013 USD ($) $ / shares shares	Apr. 30, 2006 shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Number of share-based compensation plans | CompensationPlan	2
Stock-based compensation | $	$ 2,900,000	$ 2,800,000	$ 2,500,000
Total income tax benefit recognized for share-based compensation arrangements | $	$ 1,200,000	$ 1,200,000	$ 1,000,000
Options granted in period | shares	0	0	0
Options exercised in period | shares	0	0	13,250
Restricted Stock Units (RSUs)
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Share awarded and issued | shares	97,533
Weighted average grant date fair value | $ / shares	$ 36.39
Unrecognized compensation cost | $	$ 5,800,000
Unrecognized compensation cost period of recognition	3 years 6 months
Total fair value vested | $	$ 3,700,000	$ 1,500,000	$ 1,300,000
Restricted Stock Units (RSUs) | Certain Officers and Managers
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Share awarded and issued | shares	89,343	91,076	80,514
Weighted average grant date fair value | $ / shares	$ 36.36	$ 31.44	$ 32.87
Restricted Stock Units (RSUs) | Third Anniversary Of Grant Date
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting percentage of stock options issued	50.00%
Restricted Stock Units (RSUs) | Fifth Anniversary Of Grant Date
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting percentage of stock options issued	50.00%
Restricted Stock | Non Employee Directors, Plan
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Share awarded and issued | shares	8,190	8,118	9,540
Weighted average grant date fair value | $ / shares	$ 36.67	$ 33.28	$ 31.47
Restricted Stock | One Year Anniversary After Gant Date
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting percentage of stock options issued	100.00%
Employee Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Unrecognized compensation cost | $	$ 0
Total intrinsic value of options exercised | $			$ 102,000
Actual tax benefit realized for the tax deductions from exercise of the stock options | $			$ 40,000
Employee Stock Option | Non Employee Directors, Plan
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period	1 year
Employee Stock Option | Certain Non-Employee Directors
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Period of exercisable	one year after the date of grant
Expiration period from the date of grant	10 years
Employee Stock Option | Non-officer manager
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Expiration period from the date of grant	10 years
Vesting period	2 years 6 months
Incentive Plan (the "1996 Plan")
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Number of shares authorized for grant | shares	1,000,000
Employee Stock Plan, 2006 Plan
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Number of shares authorized for grant | shares				1,000,000