FINANCIAL INSTRUMENTS (Details) $ in Millions	Nov. 30, 2015 USD ($)
Fair Value, Inputs, Level 1
Fair Value, Measurement Inputs, Disclosure [Line Items]
Money market funds	$ 63.0
Fair Value, Inputs, Level 2
Fair Value, Measurement Inputs, Disclosure [Line Items]
Long-term debt excluding credit facilities, fair value	284.8
Long-term debt excluding credit facilities, carrying amount	$ 268.4