Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Nov. 30, 2020	Aug. 31, 2020	Nov. 30, 2019
Current assets:
Cash and cash equivalents	$ 126,802	$ 121,403	$ 120,910
Marketable securities	19,624	19,511	0
Receivables, net of allowance of $2,960, $2,785, and $2,780, respectively	74,909	84,604	79,317
Inventories, net	114,278	104,792	97,284
Assets held-for-sale	0	0	2,744
Other current assets, net	20,837	17,625	16,376
Total current assets	356,450	347,935	316,631
Property, plant, and equipment:
Cost	212,725	208,107	193,000
Less accumulated depreciation	(131,430)	(128,526)	(122,695)
Property, plant, and equipment, net	81,295	79,581	70,305
Intangibles, net	22,817	23,477	23,739
Goodwill	68,027	68,004	64,358
Operating lease right-of-use assets	26,008	27,457	25,764
Deferred income tax assets	9,924	9,935	9,902
Other noncurrent assets	10,681	14,137	16,112
Total assets	575,202	570,526	526,811
Current liabilities:
Accounts payable	36,263	29,554	30,097
Current portion of long-term debt	214	195	210
Other current liabilities	65,910	72,646	54,494
Total current liabilities	102,387	102,395	84,801
Pension benefits liabilities	6,293	6,374	5,948
Long-term debt	115,641	115,682	115,805
Operating lease liabilities	24,863	25,862	25,323
Deferred income tax liabilities	902	889	845
Other noncurrent liabilities	21,215	20,806	21,089
Total liabilities	271,301	272,008	253,811
Shareholders' equity:
Preferred stock of $1 par value - authorized 2,000 shares; no shares issued and outstanding	0	0	0
Common stock of $1 par value - authorized 25,000 shares; 18,948, 18,897, and 18,918 shares issued, respectively	18,948	18,918	18,897
Capital in excess of stated value	78,026	77,686	71,706
Retained earnings	503,342	499,724	479,732
Less treasury stock - at cost, 8,083 shares	(277,238)	(277,238)	(277,238)
Accumulated other comprehensive loss, net	(19,177)	(20,572)	(20,097)
Total shareholders' equity	303,901	298,518	273,000
Total liabilities and shareholders' equity	$ 575,202	$ 570,526	$ 526,811