Leases - Summary of Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Lessee Lease Description [Line Items]
Total lease costs	$ 240,924	$ 250,719
Cost of Goods Sold and Selling, General and Administrative Expenses
Lessee Lease Description [Line Items]
Operating lease costs	180,624	188,206
Selling, General and Administrative Expenses
Lessee Lease Description [Line Items]
Amortization of leased assets	292	299
Variable lease costs	59,996	62,201
Interest Expense
Lessee Lease Description [Line Items]
Interest on lease liabilities	$ 12	$ 13