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PROPERTY, PLANT AND EQUIPMENT | 12 Months Ended
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Sep. 30, 2020
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT: Property, plant and equipment and the related accumulated depreciation at September 30, 2020 and 2019 were as follows:
| 2020 |  | 2019
Buildings | $ | 113,231 |  |  | $ | 114,276 |
Machinery, equipment and other | 486,282 |  |  | 446,356 |
| 599,513 |  |  | 560,632 |
Less accumulated depreciation | (391,436) |  |  | (361,193) |
| 208,077 |  |  | 199,439 |
Land | 16,660 |  |  | 17,310 |
Construction in progress | 12,051 |  |  | 20,693 |
| $ | 236,788 |  |  | $ | 237,442 |
Depreciation expense, including amortization of assets under finance lease, was $47,544, $45,037 and $45,412 for each of the three years ended September 30, 2020, 2019 and 2018, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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