v3.22.4
Investments - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]      
Allowance for credit loss, available-for-sale debt securities $ 0 $ 0  
Debt securities in an unrealized loss position 748,300,000 801,500,000  
Debt securities, unrealized loss 19,400,000 3,500,000  
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss 92,300,000 0  
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer 12,900,000    
Unrealized gain (loss) on marketable equity securities 0 0 $ (21,700,000)
Realized loss on marketable equity securities   13,400,000  
Equity securities without readily determinable fair value, carrying value 75,000,000 75,000,000  
Impairment of investments 0 3,100,000 53,100,000
Cumulative impairment of investments 56,200,000 56,200,000  
Carrying value of equity method investments 13,800,000 17,400,000  
Loss from equity method investments 5,400,000 3,500,000 8,200,000
Impairment in equity method investments $ 0 $ 0 $ 29,000,000.0