Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Aug. 31, 2025	Oct. 21, 2025	Feb. 28, 2025
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Aug. 31, 2025
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Trading Symbol	LNN
Entity Registrant Name	Lindsay Corporation
Entity Central Index Key	0000836157
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--08-31
Entity Filer Category	Large Accelerated Filer
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Shell Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Entity File Number	1-13419
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-0554096
Entity Address, Address Line One	18135 Burke Street
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Omaha
Entity Address, State or Province	NE
Entity Address, Postal Zip Code	68022
City Area Code	402
Local Phone Number	829-6800
Document Annual Report	true
Document Transition Report	false
Title of 12(b) Security	Common Stock, $1.00 par value
Security Exchange Name	NYSE
Auditor Name	KPMG LLP
Auditor Location	Omaha, Nebraska
Auditor Firm ID	185
Entity Public Float			$ 1,435,554,352
Entity Common Stock, Shares Outstanding		10,804,220
Documents Incorporated by Reference [Text Block]	DOCUMENTS INCORPORATED BY REFERENCE Portions of the Proxy Statement pertaining to the Registrant’s annual stockholders' meeting to be held on January 6, 2026 are incorporated by reference into Part III of this Annual Report on Form 10-K.
Auditor Opinion [Text Block]	Opinion on Internal Control Over Financial Reporting We have audited Lindsay Corporation and subsidiaries' (the Company) internal control over financial reporting as of August 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of August 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of August 31, 2025 and 2024, the related consolidated statements of earnings, comprehensive income, shareholders’ equity, and cash flows for each of the years in the three-year period ended August 31, 2025, and the related notes and financial statement schedule (collectively, the consolidated financial statements), and our report dated October 23, 2025 expressed an unqualified opinion on those consolidated financial statements.

LINDSAY CORP 10-K