Property and Equipment, Net - Schedule of property and equipment, net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Property Plant And Equipment [Line Items]
Property and equipment, net	$ 360,209	$ 361,849
Citrus trees
Property Plant And Equipment [Line Items]
Property and equipment, gross	325,427	328,421
Equipment and other facilities
Property Plant And Equipment [Line Items]
Property and equipment, gross	57,464	57,779
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	6,515	7,081
Depreciable properties
Property Plant And Equipment [Line Items]
Property and equipment, gross	389,406	393,281
Less: accumulated depreciation and depletion	(143,238)	(144,150)
Property and equipment, net	246,168	249,131
Land and land improvements
Property Plant And Equipment [Line Items]
Property and equipment, net	$ 114,041	$ 112,718