Matthews International Corporation Quarterly report pursuant to Section 13 or 15(d)

Asset Write-Downs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Asset Write-Downs (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2022
Impaired Long-Lived Assets Held and Used [Line Items]
Asset write-downs	$ 0	$ (469)	$ 0	$ 10,017	$ 10,017
Cost of Sales
Impaired Long-Lived Assets Held and Used [Line Items]
Asset write-downs				9,686
General and Administrative Expense
Impaired Long-Lived Assets Held and Used [Line Items]
Asset write-downs				$ 331