Annual report pursuant to Section 13 and 15(d)

Financial Information from Continuing Operations By Geographic Region (Detail)

v3.22.2.2
Financial Information from Continuing Operations By Geographic Region (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2020
Geographic Reporting Disclosure [Line Items]      
Percentage Of Export Sales From Domestic To Total Net Sales 9.80% 7.20% 7.30%
Assets $ 757,312 $ 820,247  
Net sales $ 571,223 $ 528,660 $ 493,292
Largest customer sales in fiscal year, percent 3.00% 3.00% 3.00%
Property, plant & equipment, net $ 41,372 $ 48,590  
United States      
Geographic Reporting Disclosure [Line Items]      
Net sales 226,020 188,070 $ 185,279
Property, plant & equipment, net 16,743 18,942  
GERMANY      
Geographic Reporting Disclosure [Line Items]      
Net sales 28,004 28,456 24,401
UNITED KINGDOM      
Geographic Reporting Disclosure [Line Items]      
Net sales 29,316 39,896 24,033
Property, plant & equipment, net 8,212 11,818  
SAUDI ARABIA      
Geographic Reporting Disclosure [Line Items]      
Net sales 20,892 16,715 19,787
AUSTRALIA      
Geographic Reporting Disclosure [Line Items]      
Net sales 26,667 24,990 19,332
BRAZIL      
Geographic Reporting Disclosure [Line Items]      
Net sales 16,517 13,937 16,413
Property, plant & equipment, net 2,873 2,248  
CANADA      
Geographic Reporting Disclosure [Line Items]      
Net sales 19,651 17,348 15,924
China      
Geographic Reporting Disclosure [Line Items]      
Net sales 15,434 16,927 15,058
UNITED ARAB EMIRATES      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 4,407 6,448  
NETHERLANDS      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 1,965 2,625  
KAZAKHSTAN      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 1,028 1,552  
SPAIN      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 1,413 1,506  
All Other      
Geographic Reporting Disclosure [Line Items]      
Net sales 188,722 182,321 $ 173,065
Property, plant & equipment, net 4,731 3,451  
General Corporate      
Geographic Reporting Disclosure [Line Items]      
Assets $ 92,472 $ 126,246