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Property and Equipment - Component of Property and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Property Plant And Equipment [Abstract]
Property and equipment	$ 245,518	$ 238,330
Less: accumulated depreciation	144,062	139,207
Property and equipment, net	$ 101,456	$ 99,123

X

- Definition

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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- Definition

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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