Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Mar. 23, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Document Type	10-K/A
Amendment Flag	true
Amendment Description	This Amendment No. 1 on Form 10-K/A (this “Form 10-K/A") amends and restates certain items noted below in the Annual Report on Form 10-K of Lonestar Resources US Inc. (the “Company”) for the year ended December 31, 2017, as originally filed with the Securities and Exchange Commission on March 29, 2018 (the “Original Filing”). This Form 10-K/A amends the Original Filing to reflect the correction of an error in the previously-reported 2016 and 2017 consolidated financial statements related to the Company’s depreciation, depletion and amortization (“DD&A”) expense calculation, as well as the related tax impacts. See Note 2 to the Consolidated Financial Statements included in Item 8 for additional information and a reconciliation of the previously reported amounts to the restated amounts. For the convenience of the reader, this Form 10-K/A sets forth the Original Filing, as amended, in its entirety; however, this Form 10-K/A amends and restates only the following financial statements and disclosures that were impacted from the correction of the error:  Part I, Item 1 – Business  Part I, Item 1A – Risk Factors  Part II, Item 6 – Selected Financial Data  Part II, Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations  Part II, Item 8 – Financial Statements and Supplementary Data  Part II, Item 9A – Controls and Procedures  Part IV, Item 15 – Exhibits and Financial Statement Schedules  Signatures This Form 10-K/A also amends Part I, Item 1 – Executive Officers and Directors to reflect the current executive officers and directors of the Company. In addition, the Company’s Chief Executive Officer and Chief Accounting Officer have provided new certifications dated as of the date of this filing in connection with this Form 10-K/A (Exhibits 31.1, 31.2, 32.1 and 32.2), and the Company has provided its revised audited consolidated financial statements formatted in Extensible Business Reporting Language (XBRL) in Exhibit 101. Except as described above, no other changes have been made to the Original Filing. This Form 10-K/A speaks as of the date of the Original Filing and does not reflect events that may have occurred after the date of the Original Filing or modify or update any disclosures that may have been affected by subsequent events. Accordingly, this Form 10-K/A should be read in conjunction with the Company’s other filings made with the SEC subsequent to the filing of the Original Filing, including any amendments to those filings. The Company is also concurrently filing amended Quarterly Reports for the quarters ended March 31, 2018 and June 30, 2018 to restate the previously issued interim financial statements due to the accounting error described above.
Document Period End Date	Dec. 31, 2017
Trading Symbol	LONE
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Entity Registrant Name	Lonestar Resources US Inc.
Entity Central Index Key	0001661920
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Public Float			$ 57.0
Entity Common Stock, Shares Outstanding		24,634,313