Income Taxes - Summary of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Aug. 31, 2024	Aug. 31, 2023
Deferred tax assets:
Operating lease liabilities	$ 19,806	$ 17,605
Amortizable goodwill and other intangibles	44,193	13,488
Employee benefit accruals	6,709	8,772
Net operating loss carryforwards	35,089	20,280
Environmental liabilities	10,755	10,109
Other contingencies	1,911	5,579
State credit carryforwards	8,360	7,711
Inventory valuation methods	1,755	2,508
163(j) interest expense carryforward	10,138	3,786
Other	5,424	3,407
Valuation allowances	(31,420)	(17,042)
Total deferred tax assets	112,720	76,203
Deferred tax liabilities:
Accelerated depreciation and other basis differences	60,193	61,938
Operating lease right-of-use assets	19,786	17,573
Investment in operating partnerships	14,805	25,769
Prepaid expense acceleration and other	3,831	6,827
Total deferred tax liabilities	98,615	112,107
Net deferred tax assets	$ 14,105
Net deferred tax liabilities		$ (35,904)