Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ 15,064	$ (6,565)
Adjustments to reconcile net income (loss) to cash (used in) provided by operating activities:
Asset impairment charges		1,692
Exit-related asset impairments		117
Depreciation and amortization	14,826	14,087
Deferred income taxes	4,770	(2,456)
Undistributed equity in earnings of joint ventures	(727)	(199)
Share-based compensation expense	2,984	2,152
Gain on the disposal of assets, net	(61)	(386)
Unrealized foreign exchange loss (gain), net	82	(16)
Credit loss, net	33	32
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(29,116)	28,202
Inventories	(25,928)	11,870
Income taxes	5,324	(227)
Prepaid expenses and other current assets	738	(356)
Other long-term assets	(737)	(57)
Operating lease assets and liabilities	(375)	105
Accounts payable	19,015	(28,953)
Accrued payroll and related liabilities	(12,529)	(11,159)
Other accrued liabilities	(5,204)	3,771
Environmental liabilities	1,252	(553)
Other long-term liabilities	3,158	32
Net cash (used in) provided by operating activities	(7,431)	11,133
Cash flows from investing activities:
Capital expenditures	(31,827)	(23,973)
Proceeds from sale of assets	80	2
Net cash used in investing activities	(31,747)	(23,971)
Cash flows from financing activities:
Borrowings from long-term debt	92,714	114,339
Repayment of long-term debt	(53,781)	(92,190)
Taxes paid related to net share settlement of share-based payment awards	(3,970)	(5,845)
Distributions to noncontrolling interests	(723)	(579)
Dividends paid	(5,680)	(5,653)
Net cash provided by financing activities	28,560	10,072
Effect of exchange rate changes on cash	(11)	13
Net decrease in cash and cash equivalents	(10,629)	(2,753)
Cash and cash equivalents as of beginning of period	17,887	12,377
Cash and cash equivalents as of end of period	7,258	9,624
Cash paid during the period for:
Interest	1,364	885
Income taxes (refunded) paid, net	(4,389)	104
Schedule of noncash investing and financing transactions:
Purchases of property, plant and equipment included in current liabilities	$ 11,412	$ 8,106