CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
REVENUES
Commissions and fees	$ 1,035.9	$ 838.7	$ 2,143.9	$ 1,743.1
Investment income	10.3	0.4	17.3	0.6
Other income, net	1.1	0.6	2.1	0.8
Total revenues	1,047.3	839.7	2,163.3	1,744.5
EXPENSES
Employee compensation and benefits	530.2	412.1	1,101.3	871.0
Other operating expenses	162.0	154.0	322.7	280.8
(Gain)/loss on disposal	(0.4)	(0.7)	(6.1)	(0.9)
Amortization	41.2	33.6	82.6	64.7
Depreciation	10.2	8.9	20.1	17.1
Interest	47.9	36.0	94.6	54.3
Change in estimated acquisition earn-out payables	1.8	(3.0)	(0.5)	(6.4)
Total expenses	792.9	640.9	1,614.7	1,280.6
Income before income taxes	254.4	198.8	548.6	463.9
Income taxes	64.0	53.6	122.7	98.4
Net income	$ 190.4	$ 145.2	$ 425.9	$ 365.5
Net income per share:
Basic (in dollars per share)	$ 0.67	$ 0.51	$ 1.50	$ 1.29
Diluted (in dollars per share)	0.67	0.51	1.50	1.29
Dividends declared per share (in dollars per share)	$ 0.115	$ 0.103	$ 0.230	$ 0.205