Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.20.4
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2020
Mar. 12, 2021
Jun. 30, 2020
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Registrant Name Churchill Capital Corp II    
Title of 12(b) Security Shares of Class A common stock    
Security Exchange Name. NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Central Index Key 0001774675    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Trading Symbol CCX    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Small Business false    
Entity Shell Company true    
Entity Public Float     $ 689,978,000
Class A Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   69,000,000  
Class B Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   17,250,000