v3.23.2
Business Combinations - Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Millions
 6 Months Ended 15 Months Ended
Apr. 01, 2022
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Dec. 31, 2022
Business Acquisition [Line Items]          
Goodwill   $ 1,692.7   $ 1,692.7 $ 1,692.7
Cash paid for acquisitions, net of cash acquired   0.0 $ 143.6    
2022 Business Acquisitions          
Business Acquisition [Line Items]          
Cash and cash equivalents   14.8   14.8  
Accounts receivable   2.3   2.3  
Prepaid expenses and other assets   1.0   1.0  
Intangible assets   34.8   34.8  
Accounts payable and other liabilities   (1.3)   (1.3)  
Unearned revenue   (6.8)   (6.8)  
Deferred tax liabilities   (3.6)   (3.6)  
Total identifiable net assets acquired   41.2   41.2  
Goodwill   119.4   119.4  
Total consideration   $ 160.6   160.6  
Cash acquired       (14.8)  
Cash paid for acquisitions, net of cash acquired       145.8  
Cash paid (received) for acquisitions       143.7  
2022 Business Acquisitions | Preliminary Fair Value at Acquisition Date          
Business Acquisition [Line Items]          
Cash and cash equivalents $ 14.8        
Accounts receivable 2.3        
Prepaid expenses and other assets 0.3        
Intangible assets 34.8        
Accounts payable and other liabilities (0.9)        
Unearned revenue (6.8)        
Deferred tax liabilities (6.5)        
Total identifiable net assets acquired 38.0        
Goodwill 122.5        
Total consideration 160.5        
Cash acquired (14.8)        
Cash paid for acquisitions, net of cash acquired $ 145.7        
2022 Business Acquisitions | Measurement Period Adjustments          
Business Acquisition [Line Items]          
Measurement period adjustments, Prepaid expenses and other assets       0.7  
Measurement period adjustments, accounts payable and other liabilities       (0.4)  
Measurement period adjustments, deferred tax liabilities       2.9  
Measurement period adjustments, total identifiable net assets acquired       3.2  
Measurement period adjustments, goodwill       (3.1)  
Measurement period adjustments, total consideration       0.1  
Cash paid for acquisitions, net of cash acquired       0.1  
2021 Business Acquisitions          
Business Acquisition [Line Items]          
Cash paid (received) for acquisitions       $ 2.1