Quarterly report [Sections 13 or 15(d)]

Condensed Consolidating Financial Statements - Additional Information (Details)

v3.25.1
Condensed Consolidating Financial Statements - Additional Information (Details)
Sep. 08, 2020
USD ($)
Debtinstrument
Jan. 21, 2020
USD ($)
Debtinstrument
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   $ 51,588,000
Debt instrument price per unit   1,000
Private Placement | RLNs    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount   $ 103,000
Number of debt instruments within each notes | Debtinstrument 50 50
Rights Offering | 2025 Exchangeable Notes    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount $ 220,000  
Rights Offering | RLNs    
Condensed Financial Statements Captions [Line Items]    
Aggregate principal amount $ 440