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Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis and Carrying Value (Details) - USD ($)
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Liabilities        
Deferred consideration $ 12,400,000      
Level 2        
Liabilities        
Contingent consideration 12,400,000 $ 5,700,000 $ 7,800,000 $ 7,400,000
Level 3        
Liabilities        
Contingent consideration 169,700,000 84,600,000 $ 61,700,000 $ 58,100,000
Carrying Value | Recurring Basis        
Assets        
Cash and cash equivalents 1,246,800,000 482,400,000    
Marketable securities 0 298,100,000    
Collateral for interest rate swap 6,000,000.0 6,000,000.0    
Liabilities        
Interest rate swap (1,500,000)      
Interest rate swap   1,200,000    
Deferred consideration 12,400,000 5,700,000    
Contingent consideration 169,700,000 84,600,000    
Estimate of Fair Value Measurement | Recurring Basis | Level 1        
Assets        
Cash and cash equivalents 1,246,800,000 482,400,000    
Marketable securities   298,100,000    
Collateral for interest rate swap 6,000,000.0 6,000,000.0    
Liabilities        
Interest rate swap 0      
Interest rate swap   0    
Deferred consideration 0 0    
Contingent consideration 0 0    
Estimate of Fair Value Measurement | Recurring Basis | Level 2        
Assets        
Cash and cash equivalents 0 0    
Marketable securities   0    
Collateral for interest rate swap 0 0    
Liabilities        
Interest rate swap (1,500,000)      
Interest rate swap   1,200,000    
Deferred consideration 12,400,000 5,700,000    
Contingent consideration 0 0    
Estimate of Fair Value Measurement | Recurring Basis | Level 3        
Assets        
Cash and cash equivalents 0 0    
Marketable securities   0    
Collateral for interest rate swap 0 0    
Liabilities        
Interest rate swap 0      
Interest rate swap   0    
Deferred consideration 0 0    
Contingent consideration $ 169,700,000 $ 84,600,000