XML 14 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2020
Feb. 19, 2021
Jun. 30, 2020
Document Information [Line Items]      
Entity Central Index Key 0001442145    
Entity Registrant Name Verisk Analytics, Inc.    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2020    
Document Transition Report false    
Entity File Number 001-34480    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 26-2994223    
Entity Address, Address Line One 545 Washington Boulevard    
Entity Address, City or Town Jersey City    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07310-1686    
City Area Code 201    
Local Phone Number 469-3000    
Title of 12(b) Security Common Stock $.001 par value    
Trading Symbol VRSK    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 26,448,164,972
Entity Common Stock, Shares Outstanding   162,791,583  
ICFR Auditor Attestation Flag true