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PROPERTY, PLANT AND EQUIPMENT
 3 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
The following table details the components of property, plant and equipment, net:
At December 31, 2020At September 30, 2020
Land, building and building improvements$168,557 $167,005 
Machinery and equipment603,270 595,126 
Leasehold improvements53,841 53,386 
825,668 815,517 
Accumulated depreciation and amortization(482,962)(471,553)
Total$342,706 $343,964 

Depreciation and amortization expense for property, plant and equipment was $12,888 and $13,432 for the quarters ended December 31, 2020 and 2019, respectively. Depreciation included in SG&A expenses was $4,706 and $4,951 for the quarters ended December 31, 2020 and 2019, respectively. Remaining components of depreciation, attributable to manufacturing operations, are included in Cost of goods and services.
Except as described in Note 17, Restructuring Charges, no event or indicator of impairment occurred during the three months ended December 31, 2020 which would require additional impairment testing of property, plant and equipment.