XML 52 R41.htm IDEA: XBRL DOCUMENT v3.25.1
Fair Value Measurements - Narrative (Details) - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized cost of available-for-sale investments with maturities less than one year $ 1,083,700,000 $ 1,139,900,000
Amortized cost of available-for-sale investments with maturities greater than one year 623,200,000 565,800,000
Net gain on investments, net of tax 3,500,000 2,600,000
Convertible Debt | 2026 Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Debt instrument, fair value 1,297,800,000  
Money market funds    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Unrealized gain 0 0
Unrealized loss 0 $ 0
Standby Letters of Credit    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Restricted cash $ 6,600,000