Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Revenues:
Commissions		$ 169,550	$ 195,909
Principal transactions		115,522	159,270
Investment banking		211,879	254,846
Asset management		315,569	341,636
Interest		451,564	165,435
Other income		(2,293)	8,888
Total revenues		1,261,791	1,125,984
Interest expense		154,998	9,457
Net revenues	[1]	1,106,793	1,116,527
Non-interest expenses:
Compensation and benefits		651,190	673,691
Occupancy and equipment rental		82,140	77,026
Communications and office supplies		46,136	42,456
Commissions and floor brokerage		14,440	15,887
Provision for credit losses		4,920	8,240
Other operating expenses		98,084	72,118
Total non-interest expenses		896,910	889,418
Income from operations before income tax expense		209,883	227,109
Provision for income taxes		52,344	53,560
Net income		157,539	173,549
Preferred dividends		9,320	9,320
Net income available to common shareholders		$ 148,219	$ 164,229
Earnings per common share:
Basic		$ 1.36	$ 1.50
Diluted		1.28	1.39
Cash dividends declared per common share		$ 0.36	$ 0.30
Weighted-average number of common shares outstanding:
Basic		108,754	109,205
Diluted		115,390	118,140

[1] No individual client accounted for more than 10 percent of total net revenues for the three months ended March 31, 2023 and 2022.