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Fair Value Measures and Investments - Narrative (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Liabilities, fair value, recurring basis $ 0.0 $ 0.0
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Equity securities, fair value, recurring basis $ 2.5 $ 2.3