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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
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)
20212020
Land, buildings and improvements
$83.5 $80.2 
Machinery, equipment and other
383.0 344.4 
Finance leases146.1 145.4 
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.