Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

No definition available.

Name:	dei_AmendmentFlag
Namespace Prefix:	dei_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

PCAOB issued Audit Firm Identifier

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 10-K
-Number 249
-Section 310

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 20-F
-Number 249
-Section 220
-Subsection f

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form 40-F
-Number 249
-Section 240
-Subsection f

Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
Document and Entity Information - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 05, 2025	Jun. 28, 2024
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Central Index Key	0001995807
Entity Registrant Name	LandBridge Company LLC
Entity File Number	001-42150
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	93-3636146
Entity Address, Address Line One	5555 San Felipe Street
Entity Address, Address Line Two	Suite 1200
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77056
City Area Code	713
Local Phone Number	230-8864
Title of 12(b) Security	Class A shares, representing limited liability company interests
Trading Symbol	LB
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction Flag	false
Entity Shell Company	false
Entity Public Float			$ 0
Documents Incorporated by Reference	Portions of the Registrant’s definitive proxy statement for the 2025 Annual Meeting of Shareholders, which will be filed with the U.S. Securities and Exchange Commission (the “SEC”) within 120 days after December 31, 2024, are incorporated by reference into Part III of this Annual Report on Form 10-K.
Auditor Name	Deloitte & Touche LLP
Auditor Firm ID	34
Auditor Location	Houston, Texas
Auditor Opinion	Opinion on the Financial Statements We have audited the accompanying consolidated balance sheets of LandBridge Company LLC and subsidiaries (the “Company”) as of December 31, 2024 and 2023, the related consolidated statements of operations, shareholders’ and member’s equity, and cash flows for each of the two years in the period ended December 31, 2024, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2024 and 2023, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2024, in conformity with accounting principles generally accepted in the United States of America.
Class A Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		23,255,419
Class B Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		53,193,178