Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Financial Statements - Additional Information (Details)

v3.20.2
Condensed Consolidating Financial Statements - Additional Information (Details)
Jan. 21, 2020
USD ($)
Debtinstrument
Sep. 08, 2020
USD ($)
Iterum Therapeutics Bermuda Limited    
Condensed Financial Statements Captions [Line Items]    
Ownership percentage 100.00%  
Subsidiary Guarantors    
Condensed Financial Statements Captions [Line Items]    
Ownership percentage 100.00%  
Private Placement | 2025 Exchangeable Notes    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount $ 51,600,000  
Debt instrument price per unit 1,000  
Private Placement | RLNs    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount $ 100,000  
Number of debt instruments within each notes | Debtinstrument 50  
Rights Offering | 2025 Exchangeable Notes    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount   $ 200,000
Rights Offering | RLNs    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount   $ 20,000