CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Statement of Comprehensive Income [Abstract]
Currency translation adjustments and other, tax benefits (expenses)		$ 8,800	$ 9,100	$ 11,900	$ 1,700
Changes in instrument specific credit risk, tax expense		50,700	1,000	58,600	7,000
Changes in instrument specific credit risk reclassified to Principal transactions revenues		(1,700)	200	(2,000)	500
Changes in instrument specific credit risk reclassified to Principal transactions revenues, tax benefits (expenses)		400	(100)	500	(200)
Cash flow hedges, tax benefit			100		200
Cash flow hedges	[1]	0	(219)	0	(470)
Unrealized gain on available-for-sale securities, tax expense		$ 100	$ 100	$ 200	$ 200

[1] The amount during the three and six months ended May 31, 2019 includes income tax benefits of $0.1 million and $0.2 million, respectively. The cash flow hedge losses of $0.2 million and $0.5 million, respectively, were reclassified to Other revenues within the Consolidated Statement of Earnings due to the sale of all of our common shares of Epic Gas Ltd. (“Epic Gas”). Refer to Note 9, Investments for further information.