v3.26.3
Fair Value Measurements - Schedule of Estimated Fair Value (Details)
Sep. 30, 2026
Dec. 31, 2025
Exchangeable Notes Due 2029 | Hertz Global common share price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 1.67 5.14
Exchangeable Notes Due 2029 | Expected term (years)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 2.79 3.54
Exchangeable Notes Due 2029 | Risk-free interest rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.0498 0.0360
Exchangeable Notes Due 2029 | Credit spread    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.4294 0.1126
Exchangeable Notes Due 2029 | Expected volatility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.7000 0.3500
Exchangeable Notes Due 2030 | Hertz Global common share price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 1.67 5.14
Exchangeable Notes Due 2030 | Expected term (years)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 4.00 4.75
Exchangeable Notes Due 2030 | Risk-free interest rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.0505 0.0371
Exchangeable Notes Due 2030 | Credit spread    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.4461 0.1245
Exchangeable Notes Due 2030 | Expected volatility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.7000 0.3500
Exchangeable First Lien Notes Due 2030 | Hertz Global common share price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 1.67 2.30
Exchangeable First Lien Notes Due 2030 | Expected term (years)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 3.75 4.01
Exchangeable First Lien Notes Due 2030 | Risk-free interest rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.0503 0.0412
Exchangeable First Lien Notes Due 2030 | Credit spread    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.2276 0.1391
Exchangeable First Lien Notes Due 2030 | Expected volatility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.7000 0.7000
Capped Call Transactions 2030 | Hertz Global common share price    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 1.67 5.14
Capped Call Transactions 2030 | Expected term (years)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 4.00 4.75
Capped Call Transactions 2030 | Risk-free interest rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.0505 0.0371
Capped Call Transactions 2030 | Credit spread    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0 0
Capped Call Transactions 2030 | Expected volatility    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative liability, measurement input 0.7000 0.3600