v3.22.1
Segment Information - Segment Profitability and Reconciliation to Net Income (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Segment Reporting Information [Line Items]    
Adjusted EBITDA $ 318,544 $ 276,586
Amortization of intangible assets 21,720 15,068
Depreciation and amortization of property, equipment and leasehold improvements 6,534 7,143
Acquisition-related integration and transaction costs (1) 1,312  
Operating income 288,978 254,375
Other expense (income), net 40,035 38,347
Provision for income taxes 20,520 19,209
Net income 228,423 196,819
Index [Member]    
Segment Reporting Information [Line Items]    
Adjusted EBITDA 245,875 219,879
Analytics [Member]    
Segment Reporting Information [Line Items]    
Adjusted EBITDA 50,889 45,731
ESG and Climate [Member]    
Segment Reporting Information [Line Items]    
Adjusted EBITDA 12,092 5,045
All Other - Private Assets [Member]    
Segment Reporting Information [Line Items]    
Adjusted EBITDA $ 9,688 $ 5,931