v3.26.3
COVER PAGE - shares
9 Months Ended
Sep. 30, 2026
Oct. 23, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2026  
Document Transition Report false  
Entity File Number 001-33139  
Entity Registrant Name HERC HOLDINGS INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-3530539  
Entity Address, Address Line One 27500 Riverview Center Blvd.  
Entity Address, City or Town Bonita Springs  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 34134  
City Area Code 239  
Local Phone Number 301-1000  
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol HRI  
Security Exchange Name NYSE  
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 Common Stock, Shares Outstanding   33,463,396
Entity Central Index Key 0001364479  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q3  
Amendment Flag false