Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Revenues:
Commissions		$ 185,476	$ 169,550
Principal transactions		139,014	115,522
Investment banking		213,949	211,879
Asset management		367,476	315,569
Interest		506,828	451,564
Other income		4,950	(2,293)
Total revenues		1,417,693	1,261,791
Interest expense		254,655	154,998
Net revenues	[1]	1,163,038	1,106,793
Non-interest expenses:
Compensation and benefits		679,695	651,190
Occupancy and equipment rental		88,712	82,140
Communications and office supplies		47,367	46,136
Commissions and floor brokerage		15,767	14,440
Provision for credit losses		5,268	4,920
Other operating expenses		107,538	98,084
Total non-interest expenses		944,347	896,910
Income from operations before income tax expense		218,691	209,883
Provision for income taxes		55,116	52,344
Net income		163,575	157,539
Preferred dividends		9,320	9,320
Net income available to common shareholders		$ 154,255	$ 148,219
Earnings per common share:
Basic		$ 1.48	$ 1.36
Diluted		1.4	1.28
Cash dividends declared per common share		$ 0.42	$ 0.36
Weighted-average number of common shares outstanding:
Basic		104,275	108,754
Diluted		109,985	115,390

[1] No individual client accounted for more than 10 percent of total net revenues for the three months ended March 31, 2024 and 2023.