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SHAREHOLDERS' EQUITY (Details) - Class A common stock - $ / shares | Sep. 30, 2018 | Sep. 30, 2017
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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) | 5,000,000 |
Shares remaining for repurchase (in shares) | 1,422,282 |

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