Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Contract assets related to contingent income	$ 2.3	$ 2.9
Contract with customer, liability	$ 0.5	1.6
Performance obligation, description of timing	one year
Insurance
Disaggregation of Revenue [Line Items]
Contract with customer, asset, net	$ 6.1	6.1
Wealth Management
Disaggregation of Revenue [Line Items]
Contract with customer, asset, net	$ 2.7	$ 2.5