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

Asset Write-Downs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Asset Write-Downs (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Impaired Long-Lived Assets Held and Used [Line Items]
Asset write-downs	$ 10,486	$ 0	$ 10,486	$ 0
Cost of Sales
Impaired Long-Lived Assets Held and Used [Line Items]
Asset write-downs	9,686		9,686
General and Administrative Expense
Impaired Long-Lived Assets Held and Used [Line Items]
Asset write-downs	$ 800		$ 800