CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
REVENUES
Commissions and fees	$ 3,563.2	$ 3,047.5	$ 2,606.1
Investment income	6.5	1.1	2.8
Other income, net	3.7	2.8	4.5
Total revenues	3,573.4	3,051.4	2,613.4
EXPENSES
Employee compensation and benefits	1,816.9	1,636.9	1,436.4
Other operating expenses	596.8	403.0	366.0
(Gain)/loss on disposal	(4.5)	(9.6)	(2.4)
Amortization	146.6	119.6	108.5
Depreciation	39.2	33.3	26.3
Interest	141.2	65.0	59.0
Change in estimated acquisition earn-out payables	(38.9)	40.4	(4.5)
Total expenses	2,697.3	2,288.6	1,989.3
Income before income taxes	876.1	762.8	624.1
Income taxes	204.3	175.7	143.6
Net income	$ 671.8	$ 587.1	$ 480.5
Net income per share:
Basic	$ 2.38	$ 2.08	$ 1.70
Diluted	2.37	2.07	1.69
Dividends declared per share	$ 0.42	$ 0.38	$ 0.35