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Fair Value Measurements - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2024
Jan. 31, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Available-for-sale debt securities $ 830,300,000   $ 629,000,000.0
Allowance for credit losses 7,100,000    
Equity securities without readily determinable fair value, downward adjustment 89,900,000    
Equity securities without readily determinable fair value, upward adjustment 0    
Goodwill impairment 0    
Fair Value, Measurements, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Available-for-sale debt securities 830,300,000   629,000,000.0
Financial and nonfinancial liabilities, fair value disclosure 93,500,000   80,800,000
Fair Value, Measurements, Nonrecurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Financial and nonfinancial liabilities, fair value disclosure 0   0
Significant Other Unobservable Remaining Inputs (Level 3) | Fair Value, Measurements, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Available-for-sale debt securities 30,600,000   49,700,000
Financial and nonfinancial liabilities, fair value disclosure 0   0
Significant Other Observable Remaining Inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Total outstanding debt, fair value 1,567,800,000   1,581,700,000
Significant Other Observable Remaining Inputs (Level 2) | Fair Value, Measurements, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Available-for-sale debt securities 750,800,000   559,300,000
Financial and nonfinancial liabilities, fair value disclosure $ 93,500,000   $ 80,800,000
Privately Held Debt | Fair Value, Measurements, Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Available-for-sale debt securities   $ 25,000,000  
Available-for-sale debt securities, term   2 years