Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2023
Oct. 31, 2023
Mar. 31, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Sep. 30, 2023    
Current Fiscal Year End Date --09-30    
Document Transition Report false    
Entity File Number 0-09115    
Entity Incorporation, State or Country Code PA    
Entity Tax Identification Number 25-0644320    
Entity Address, Address Line One Two Northshore Center    
Entity Address, City or Town Pittsburgh    
Entity Address, State or Province PA    
Entity Address, Postal Zip Code 15212-5851    
City Area Code (412)    
Local Phone Number 442-8200    
Title of 12(b) Security Class A Common Stock, $1.00 par value    
Trading Symbol MATW    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 1,100
Entity Common Stock, Shares Outstanding   30,384,251  
Documents Incorporated by Reference Documents incorporated by reference: Specified portions of the Proxy Statement for the 2024 Annual Meeting of Shareholders are incorporated by reference into Part III of this Report.    
Entity Central Index Key 0000063296    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false