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Fair Value Measurements - Narrative (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Proceeds from sale of strategic investment $ 31,400,000 $ 0  
Gain on sale of strategic investment 19,200,000 $ 0  
Impairment of equity investment 0   $ 0
Equity securities where fair value is not readily determinable 83,200,000   80,800,000
Debt securities, held-to-maturity, restricted 78,800,000   78,000,000
Held-to-maturity, allowance for credit loss 400,000   600,000
Restricted investment, restricted cash 7,700,000   7,000,000
Restricted investments, at fair value 76,400,000   74,700,000
Total debt including finance lease obligations 1,509,600,000   1,479,900,000
Fair Value, Nonrecurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets, fair value 0   0
Liabilities, fair value 0   0
Privately Held Companies      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Equity method investments 15,700,000   28,200,000
Impairment of equity investment 0   0
Debt Obligations      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Finance lease obligations 101,600,000   101,900,000
Variable Interest Rate      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Total debt including finance lease obligations 858,000,000   828,000,000
Senior Notes Issued 2018      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Senior notes 550,000,000   550,000,000
Senior Notes Issued 2018 | Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Debt instrument, fair value 478,900,000   471,800,000
Estimate of Fair Value Measurement | Debt Obligations      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Finance lease obligations $ 106,800,000   $ 106,200,000