Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	May 31, 2020	May 31, 2019
Cash flows from operating activities:
Net (loss) income	$ (6,778)	$ 46,355
Adjustments to reconcile net (loss) income to cash provided by operating activities:
Asset impairment charges	4,321	63
Exit-related asset impairments	971	23
Depreciation and amortization	43,215	39,644
Inventory write-downs		775
Deferred income taxes	8,570	9,402
Undistributed equity in earnings of joint ventures	(698)	(980)
Share-based compensation expense	6,710	13,437
(Gain) loss on the disposal of assets, net	(19)	252
Unrealized foreign exchange (gain) loss, net	(24)	86
Bad debt expense, net	53	63
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	3,914	(9,779)
Inventories	32,754	14,832
Income taxes	(11,428)	689
Prepaid expenses and other current assets	(1,209)	(3,258)
Other long-term assets	563	735
Operating lease assets and liabilities	23
Accounts payable	(32,489)	(19,482)
Accrued payroll and related liabilities	(1,257)	(25,315)
Other accrued liabilities	5,064	(3,811)
Environmental liabilities	2,314	(2,637)
Other long-term liabilities	266	(4)
Distributed equity in earnings of joint ventures	1,000	1,942
Net cash provided by operating activities	55,836	63,032
Cash flows from investing activities:
Capital expenditures	(59,287)	(61,000)
Acquisition		(1,553)
Joint venture receipts, net		641
Proceeds from sale of assets	739	1,641
Deposit on land option	630	1,260
Net cash used in investing activities	(57,918)	(59,011)
Cash flows from financing activities:
Borrowings from long-term debt	685,527	316,676
Repayment of long-term debt	(363,470)	(282,932)
Payment of debt issuance costs		(102)
Repurchase of Class A common stock	(914)	(10,087)
Taxes paid related to net share settlement of share-based payment awards	(5,845)	(7,463)
Distributions to noncontrolling interests	(1,940)	(941)
Dividends paid	(15,803)	(15,600)
Net cash provided by (used in) financing activities	297,555	(449)
Effect of exchange rate changes on cash	(195)	(176)
Net increase in cash and cash equivalents	295,278	3,396
Cash and cash equivalents as of beginning of period	12,377	4,723
Cash and cash equivalents as of end of period	307,655	8,119
Cash paid during the period for:
Interest	2,008	4,831
Income taxes paid, net	241	3,436
Schedule of noncash investing and financing transactions:
Purchases of property, plant and equipment included in current liabilities	$ 7,863	$ 9,839