Property, Plant and Equipment

12 Months Ended

Sep. 30, 2021

Property Plant And Equipment [Abstract]

10. Property, Plant and Equipment

Property, plant and equipment consisted of the following (in millions):

	September 30,
	2021			2020
Land and land improvements	$	71.4		$	63.9
Buildings		407.3			377.1
Machinery and equipment		729.5			723.7
Software and related costs		203.0			175.6
Equipment on operating lease to others		18.8			21.7
Construction in progress		37.1			35.0
		1,467.1			1,397.0
Less accumulated depreciation		(871.2	)		(831.1	)
	$	595.9		$	565.9

Depreciation expense was $87.5 million (including $3.6 million of accelerated depreciation related to restructuring actions), $89.1 million (including $6.9 million of accelerated depreciation related to restructuring actions) and $76.7 million in fiscal 2021, 2020 and 2019, respectively. Capitalized interest was insignificant for all reported periods.

Equipment on operating lease to others represents the cost of equipment shipped to customers for whom the Company has guaranteed the residual value and equipment on short-term leases. These transactions are accounted for as operating leases with the related assets capitalized and depreciated over their estimated economic lives of five to ten years. Cost less accumulated depreciation for equipment on operating lease to others at September 30, 2021 and 2020 was $15.4 million and $18.9 million, respectively.