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PROPERTY, PLANT AND EQUIPMENT | 12 Months Ended
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Sep. 30, 2021
Property, Plant and Equipment [Abstract] |
PROPERTY PLANT AND EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment as of September 30, 2021 and 2020 consist of the following:
(in millions) |  | 2021 |  | 2020
Land, buildings and improvements |  | $ | 83.5 |  |  | $ | 80.2 |
Machinery, equipment and other |  | 383.0 |  |  | 344.4 |
Finance leases |  | 146.1 |  |  | 145.4 |
Construction in progress |  | 28.8 |  |  | 20.5 |
Property, plant and equipment |  | $ | 641.4 |  |  | $ | 590.5 |
Accumulated depreciation |  | (381.2) |  |  | (334.9) |
Property, plant and equipment, net |  | $ | 260.2 |  |  | $ | 255.6 |
Depreciation expense from property, plant and equipment for the years ended September 30, 2021, 2020 and 2019 was $51.9 million, $59.3 million, and $76.4 million, respectively. During the year ended September 30, 2019 the Company recognized incremental depreciation of $13.5 million attributable to cumulative depreciation on property plant and equipment of HPC assets that were previously deferred when classified as held for sale.

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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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