Exit Costs - Restructuring Reserve (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2016
Restructuring Reserve [Roll Forward]
Expenses	$ 73,094	$ 1,854
Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	4,805
Expenses	30,327	279
Payments	(25,522)	(5,084)
Ending balance	4,805	0
Other Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Expenses	2,774	300
Payments	(2,774)	(300)
Ending balance	0	0
Contract Termination Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Expenses	11,247	1,234
Payments	(11,247)	(1,234)
Ending balance	0	0
Total Restructuring Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning balance	0	4,805
Expenses	44,348	1,813
Payments	(39,543)	(6,618)
Ending balance	4,805	0
Accelerated Amortization of Restricted Stock and Restricted Cash Awards [Member]
Restructuring Reserve [Roll Forward]
Expenses	7,922	41
Accelerated Amortization of Capitalized Software [Member]
Restructuring Reserve [Roll Forward]
Expenses	19,745	0
Impairments [Member]
Restructuring Reserve [Roll Forward]
Expenses	$ 1,079	$ 0