Segment Reporting - Net Revenues by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended
Feb. 28, 2018	Feb. 28, 2017
Revenues:
Net revenues	$ 821,246	$ 795,513
Americas
Revenues:
Net revenues	682,100	609,800
Europe
Revenues:
Net revenues	118,200	156,300
Asia
Revenues:
Net revenues	$ 20,900	$ 29,400

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income after deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

No definition available.

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Balance Type:	credit
Period Type:	duration