Property, Plant, and Equipment

6 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant, and Equipment

Property, plant, and equipment consists of the following:

	March 31, 2022		September 30, 2021
Machinery and equipment	$	395,017	$	388,352
Rental equipment	253,800		246,257
Land and buildings	77,498		70,048
Construction in process	62,142		59,737
	788,457		764,394
Less: accumulated depreciation	(393,167)		(389,406)
Property, plant, and equipment, net	$	395,290	$	374,988

The Company entered into secured financing agreements that require providing a security interest in specified equipment and, in some cases, the underlying contract. As of March 31, 2022 and September 30, 2021, the gross and net amounts of those assets are as follows:

	March 31, 2022				September 30, 2021
	Gross		Net		Gross		Net
Machinery and equipment	$	86,033	$	65,752	$	73,632	$	57,036
Construction in process	9,668		9,668		30,504		30,504
	$	95,701	$	75,420	$	104,136	$	87,540

Depreciation expense and maintenance and repairs expense for the three and six months ended March 31, 2022 and 2021 were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2022		2021		2022		2021
Depreciation expense	$	20,722	$	18,769	$	40,042	$	37,280
Maintenance and repair expense	7,475		4,754		13,594		9,962