Segment Reporting - Net Revenues by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2019	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Feb. 28, 2018	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Revenues:
Net revenues	$ 747,802	$ 777,159	$ 901,851	$ 685,718	$ 761,958	$ 777,615	$ 822,557	$ 821,246	$ 3,112,530	$ 3,183,376	$ 3,198,109
Americas
Revenues:
Net revenues									2,407,600	2,652,900	2,602,700
Europe
Revenues:
Net revenues									592,800	434,900	489,600
Asia
Revenues:
Net revenues									$ 112,100	$ 95,600	$ 105,800