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Fair Value Measurements - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Fair Value by Fair Value Hierarchy Level [Line Items]      
Investment fund, maximum exposure loss limit $ 21.3 $ 21.3  
Investment fund, maximum exposure loss limit, unfunded commitments 38.0 38.0  
Purchase of non-marketable investments 4.4 18.5  
Equity securities without readily determinable fair value, downward price adjustment 0.8    
Equity securities without readily determinable fair value, upward price adjustment   $ 0.8  
Proceeds from non marketable securities 38.0    
Minimum      
Fair Value by Fair Value Hierarchy Level [Line Items]      
Investment fund, term   7 years  
Investment fund, option to extend, term   2 years  
Maximum      
Fair Value by Fair Value Hierarchy Level [Line Items]      
Investment fund, term   10 years  
Investment fund, option to extend, term   3 years  
Fair Value Measured at Net Asset Value Per Share      
Fair Value by Fair Value Hierarchy Level [Line Items]      
Equity securities without readily determinable fair value $ 21.3 $ 21.3 $ 3.2