Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
12 Months Ended
Dec. 31, 2020
Feb. 15, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2020    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-37673    
Entity Registrant Name WORKHORSE GROUP INC.    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 26-1394771    
Entity Address, Address Line One 100 Commerce Drive    
Entity Address, City or Town Loveland    
Entity Address, State or Province OH    
Entity Address, Postal Zip Code 45140    
City Area Code 513    
Local Phone Number 360-4704    
Title of 12(b) Security Common Stock, $0.001 par value per share    
Trading Symbol WKHS    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag true    
Entity Filer Category Large Accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 1,129,851,463
Entity Common Stock, Shares Outstanding   123,506,483  
Entity Central Index Key 0001425287    
Amendment Flag false    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY