Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Oct. 01, 2019	Sep. 30, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 619,455			$ 593,688
Less: accumulated depreciation	(280,320)			(260,104)
Property, plant, and equipment, net	339,135		$ 335,710	333,584
Depreciation and amortization	17,303	$ 15,209
Maintenance and repair expense	6,065	$ 6,157
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	332,109			316,390
Rental equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	178,069			172,534
Land and buildings
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	64,761			64,165
Construction in process
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 44,516			$ 40,599