Collateralized Transactions - Summary of Repurchase Agreements and Securities Borrowing and Lending Arrangements (Detail) - USD ($) $ in Thousands	Nov. 30, 2017	Nov. 30, 2016
Assets
Gross amounts	$ 7,721,803	$ 7,743,562
Netting in consolidated statement of financial condition	0	0
Net amounts in consolidated statement of financial condition	7,721,803	7,743,562
Additional amounts available for setoff	(966,712)	(710,611)
Available collateral	(1,032,629)	(647,290)
Net amount	5,722,462	6,385,661
Reverse repurchase agreements, Gross amounts	14,858,297	14,083,144
Reverse repurchase agreements, Netting in consolidated statement of financial condition	(11,168,738)	(10,220,656)
Reverse repurchase agreements, Net amounts in consolidated statement of financial condition	3,689,559	3,862,488
Reverse repurchase agreements, Additional amounts available for setoff	(463,973)	(176,275)
Reverse repurchase agreements, Available collateral	(3,207,147)	(3,591,654)
Reverse repurchase agreements, Net amount	18,439	94,559
Liabilities
Gross amounts	2,843,911	2,819,132
Netting in consolidated statement of financial condition	0	0
Net amounts in consolidated statement of financial condition	2,843,911	2,819,132
Additional amounts available for setoff	(966,712)	(710,611)
Available collateral	(1,795,408)	(2,064,299)
Net amount	81,791	44,222
Repurchase agreements, Gross amounts	19,829,249	17,012,332
Repurchase agreements, Netting in consolidated statement of financial condition	(11,168,738)	(10,220,656)
Repurchase agreements, Net amounts in consolidated statement of financial condition	8,660,511	6,791,676
Repurchase agreements, Additional amounts available for setoff	(463,973)	(176,275)
Repurchase agreements, Available collateral	(7,067,512)	(5,780,909)
Repurchase agreements, Net amount	1,129,026	$ 834,492
Securities received as collateral
Assets
Gross amounts	103
Netting in consolidated statement of financial condition	0
Net amounts in consolidated statement of financial condition	103
Additional amounts available for setoff	0
Available collateral	(103)
Net amount	0
Obligation to return securities received as collateral
Liabilities
Gross amounts	103
Netting in consolidated statement of financial condition	0
Net amounts in consolidated statement of financial condition	103
Additional amounts available for setoff	0
Available collateral	(103)
Net amount	$ 0