Segment Reporting - Net Revenues by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018
Revenues:
Net revenues	$ 777,159	$ 777,615	$ 2,364,728	$ 2,421,418
Americas
Revenues:
Net revenues	613,400	639,700	1,871,300	2,042,400
Europe
Revenues:
Net revenues	136,900	115,900	413,600	313,400
Asia
Revenues:
Net revenues	$ 26,900	$ 22,000	$ 79,800	$ 65,600