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Description of Business and Principles of Consolidation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Apr. 30, 2021
Apr. 19, 2021
Mar. 31, 2021
Dec. 31, 2020
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Date of incorporation     Jul. 18, 2011  
Entity incorporation state or country code     DE  
Preferred stock shares converted into equity   0    
KKR Denali Holdings L P [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Repayment of revolving credit facility $ 400.0      
Common Class A [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common stock shares authorized     386,400,000 386,400,000
Common stock shares issued     184,817,898 183,800,251
Common stock shares outstanding     184,817,898 183,800,251
Common Class C [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common stock shares issued   0    
Common stock shares outstanding   0    
Subsequent Event [Member] | Common Class A [Member] | Restated Certificate Of Incorporation [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common stock shares authorized   1,500,000,000    
Subsequent Event [Member] | Common Class A [Member] | Conversion Of Class A Common Stock Into Class B Common Stock [Member] | KKR Denali [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common Stock Shares Converted From One Class To Another   150,307,622    
Subsequent Event [Member] | Common Class A [Member] | Conversion Of Class A Common Stock Into Class B Common Stock [Member] | Adam Foroughi [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common Stock Shares Converted From One Class To Another   150,307,622    
Subsequent Event [Member] | Common Class A [Member] | Conversion Of Class A Common Stock Into Class B Common Stock [Member] | Herald Chen [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common Stock Shares Converted From One Class To Another   150,307,622    
Subsequent Event [Member] | Common Class B [Member] | Restated Certificate Of Incorporation [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common stock shares authorized   200,000,000    
Subsequent Event [Member] | Common Class C [Member] | Restated Certificate Of Incorporation [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common stock shares authorized   150,000,000    
Subsequent Event [Member] | Preferred Stock [Member] | Restated Certificate Of Incorporation [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Preferred stock shares authorized   100,000,000    
Subsequent Event [Member] | IPO [Member]        
Organization Consolidation And Presentation Of Financial Statements [Line Items]        
Common stock shares issued during the period shares   22,500,000    
Sale of stock issue price per share   $ 80.00    
Sale of stock net consideration received on the transaction   $ 1,750.0    
Underwriting discounts and commissions   47.2    
Offering expenses   $ 7.9