SHAREHOLDERS' EQUITY (Details) - Class A common stock - $ / shares	Sep. 30, 2021	Jul. 28, 2021	Sep. 30, 2020
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	70,000,000		70,000,000
Common stock, par value (in dollars per share)	$ 1.00		$ 1.00
Matthews Stock Repurchase Program
Class of Stock [Line Items]
Shares authorized for repurchase (in shares)		2,500,000
Shares remaining for repurchase (in shares)	2,658,627