Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 749,120	$ 700,018
Less: accumulated depreciation and amortization	(196,574)	(167,252)
Property and equipment, net	552,546	532,766
Land [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	125,765	124,975
Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	462,755	435,665
Machinery and Equipment [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	124,823	105,070
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	8,158	7,378
Vehicles [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 27,619	$ 26,930

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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