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Acquisitions - Components of Preliminary Purchase Price Allocation (Detail) - USD ($)
$ in Thousands
Sep. 13, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Intangible assets:        
Goodwill   $ 2,236,386 $ 1,566,022 $ 1,562,868
RCA [Member]        
Business Acquisition [Line Items]        
Accounts receivable $ 9,645      
Other current assets 3,721      
Property, equipment and leasehold improvements, net 1,205      
Right of use assets 6,441      
Other non-current assets 3,270      
Deferred revenue (35,194)      
Other current liabilities (14,518)      
Long-term operating lease liabilities (4,849)      
Deferred tax liabilities (85,196)      
Intangible assets:        
Goodwill 670,874      
Purchase price, net of cash acquired 948,989      
RCA [Member] | Proprietary Data [Member]        
Intangible assets:        
Intangible assets $ 185,500      
Estimated useful life 11 years      
RCA [Member] | Customer Relationships [Member]        
Intangible assets:        
Intangible assets $ 175,700      
Estimated useful life 20 years      
RCA [Member] | Acquired Technology and Software [Member]        
Intangible assets:        
Intangible assets $ 31,500      
Estimated useful life 9 years      
RCA [Member] | Trademarks [Member]        
Intangible assets:        
Intangible assets $ 890      
Estimated useful life 2 years