Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 38,629	$ 2,172	$ 20,277
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	19,396	14,018	16,514
(Gain) loss on sale of property and equipment	(1,158)	26	90
Loss on sale of businesses	0	301	4,056
Provision (benefit) for uncollectible accounts receivable	589	(496)	(2,587)
Deferred income taxes	1,384	(5,686)	(50)
Share-based compensation expense	5,616	4,195	3,891
Valuation adjustment for indirect tax credits	0	2,795	0
Foreign currency transaction loss	1,102	709	808
Other, net	1,446	246	2,005
Changes in assets and liabilities:
Receivables	(9,523)	(7,969)	(3,714)
Inventories	(14,039)	(16,187)	(8,173)
Other current assets	(6,612)	173	(1,150)
Accounts payable	(691)	2,119	159
Other current liabilities	16,673	2,629	3,671
Other noncurrent assets and liabilities	(6,778)	4,752	(1,863)
Net cash provided by operating activities	46,034	3,797	33,934
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(21,445)	(23,211)	(11,054)
Proceeds from sale of businesses	0	0	29,888
Proceeds from sale of assets held-for-sale	3,955	0	0
Purchases of marketable securities available-for-sale	(28,041)	0	0
Proceeds from maturities of marketable securities available-for-sale	8,548	0	0
Proceeds from settlement of net investment hedges	1,503	2,262	2,278
Payments for settlement of net investment hedges	0	(327)	(3,089)
Acquisition of business, net of cash acquired	(3,034)	0	0
Other investing activities, net	0	57	82
Net cash (used in) provided by investing activities	(38,514)	(21,219)	18,105
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	1,545	177	2,788
Common stock withheld for payroll tax obligations	(1,111)	(1,124)	(833)
Principal payments on long-term debt	(227)	(205)	(201)
Payment of debt issuance costs	0	(115)	0
Dividends paid	(13,645)	(13,375)	(13,006)
Net cash used in financing activities	(13,438)	(14,642)	(11,252)
Effect of exchange rate changes on cash and cash equivalents	117	(1,519)	(1,620)
Net change in cash and cash equivalents	(5,801)	(33,583)	39,167
Cash and cash equivalents, beginning of period	127,204	160,787	121,620
Cash and cash equivalents, end of period	121,403	127,204	160,787
SUPPLEMENTAL CASH FLOW INFORMATION
Income taxes paid	7,314	7,887	11,184
Interest paid	4,673	4,671	4,626
NONCASH INVESTING ACTIVITIES
Earn-out liability related to business acquisition	1,195	0	0
Holdback related to business acquisition	300	0	0
Issuance of note receivable from sale of business	$ 0	$ 5,589	$ 0