Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Feb. 28, 2023	Feb. 28, 2022
Cash flows from operating activities:
Net (loss) income	$ (13,284)	$ 85,441
Adjustments to reconcile net (loss) income to cash provided by operating activities:
Asset impairment charges	4,000
Exit-related asset impairments	143
Depreciation and amortization	43,850	35,816
Inventory write-downs	575	304
Deferred income taxes	(6,337)	13,988
Undistributed equity in earnings of joint ventures	(1,101)	(827)
Share-based compensation expense	5,144	9,231
Loss on disposal of assets, net	16	1,345
Unrealized foreign exchange loss, net	85	121
Credit loss, net	195	16
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(13,914)	(47,762)
Inventories	33,834	(52,624)
Income taxes	(4,783)	(697)
Prepaid expenses and other current assets	9,758	1,309
Other long-term assets	(1,389)	(651)
Operating lease assets and liabilities	232	(903)
Accounts payable	12,245	11,762
Accrued payroll and related liabilities	(33,421)	(39,711)
Other accrued liabilities	(7,177)	7,583
Environmental liabilities	(4,914)	(12,482)
Other long-term liabilities	1,935	455
Distributed equity in earnings of joint ventures		1,000
Net cash provided by operating activities	25,692	12,714
Cash flows from investing activities:
Capital expenditures	(74,511)	(69,409)
Acquisitions, net of acquired cash	(26,902)	(113,939)
Proceeds from insurance and sale of assets	3,026	11,129
Deposit on land option		(80)
Net cash used in investing activities	(98,387)	(172,299)
Cash flows from financing activities:
Borrowings from long-term debt	333,242	405,094
Repayment of long-term debt	(274,036)	(225,395)
Payment of debt issuance costs	(156)
Repurchase of Class A common stock		(7,865)
Taxes paid related to net share settlement of share-based payment awards	(6,809)	(9,577)
Distributions to noncontrolling interests	(1,155)	(1,785)
Dividends paid	(10,671)	(10,841)
Net cash provided by financing activities	40,415	149,631
Effect of exchange rate changes on cash	(64)	(41)
Net decrease in cash and cash equivalents	(32,344)	(9,995)
Cash and cash equivalents as of beginning of period	43,803	27,818
Cash and cash equivalents as of end of period	11,459	17,823
Cash paid during the period for:
Interest	7,339	1,748
Income taxes, net	4,332	9,829
Schedule of noncash investing and financing transactions:
Purchases of property, plant and equipment included in liabilities	$ 13,815	$ 21,828