Segment Reporting - Net Revenues by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2015	May 31, 2015	Feb. 28, 2015	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Revenues:
Net revenues	$ 741,769	$ 654,450	$ 719,408	$ 298,987	$ 513,087	$ 578,928	$ 791,554	$ 591,672	$ 2,414,614	$ 2,475,241	$ 2,990,138
Americas [Member]
Revenues:
Net revenues									1,870,355	1,887,007	2,261,683
Europe [Member]
Revenues:
Net revenues									458,046	510,044	634,358
Asia [Member]
Revenues:
Net revenues									$ 86,213	$ 78,190	$ 94,097