Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 764,394	$ 698,173
Less: accumulated depreciation	(389,406)	(333,712)
Property, plant and equipment, net	374,988	364,461
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	388,352	357,650
Rental equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	246,257	221,953
Land and buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	70,048	70,245
Construction in process
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 59,737	$ 48,325

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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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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