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Fixed Assets - Narrative (Details) - Consolidated Entity Excluding Consolidated Funds - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Depreciation and amortization $ 18.5 $ 22.1 $ 19.8
Fixed asset disposals 9.7    
Accumulated depreciation (9.7)    
Gain (loss) on disposition of property plant equipment $ 0.0