QUARTERLY DATA (UNAUDITED) - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2017	Aug. 31, 2017	May 31, 2017	Feb. 28, 2017	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Quarterly Financial Information Disclosure [Abstract]
Loss on retirements of long-lived assets	$ 10,000	$ 100	$ 400	$ 100	$ 1,800	$ 200	$ 100	$ 900
Other income			$ 1,000			$ 1,100	13,600
Profit recognized							1,900		$ 16,971	$ 18,330	$ 16,096
Interest income							$ 11,400
Material income tax benefit recognized	$ 48,200								$ 5,625	$ (47,731)	$ (34,308)