Annual report pursuant to Section 13 and 15(d)

Financial Information from Continuing Operations By Geographic Region (Detail)

v3.21.2
Financial Information from Continuing Operations By Geographic Region (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2019
Geographic Reporting Disclosure [Line Items]      
Percentage Of Export Sales From Domestic To Total Net Sales 7.20% 7.30% 7.40%
Assets $ 820,247 $ 824,294  
Net sales $ 528,660 $ 493,292 $ 654,758
Largest customer sales in fiscal year, percent 3.00% 3.00% 3.00%
Property, plant & equipment, net $ 48,590 $ 61,405  
United States      
Geographic Reporting Disclosure [Line Items]      
Net sales 188,070 185,279 $ 249,644
Property, plant & equipment, net 18,942 21,410  
GERMANY      
Geographic Reporting Disclosure [Line Items]      
Net sales 28,456 24,401 26,445
UNITED KINGDOM      
Geographic Reporting Disclosure [Line Items]      
Net sales 39,896 24,033 30,127
Property, plant & equipment, net 11,818 9,654  
SAUDI ARABIA      
Geographic Reporting Disclosure [Line Items]      
Net sales 16,715 19,787 21,625
AUSTRALIA      
Geographic Reporting Disclosure [Line Items]      
Net sales 24,990 19,332 25,749
Property, plant & equipment, net 751 1,014  
BRAZIL      
Geographic Reporting Disclosure [Line Items]      
Net sales 13,937 16,413 18,779
Property, plant & equipment, net 2,248 1,784  
CANADA      
Geographic Reporting Disclosure [Line Items]      
Net sales 17,348 15,924 18,686
China      
Geographic Reporting Disclosure [Line Items]      
Net sales 16,927 15,058 18,548
Property, plant & equipment, net 750 12,248  
UNITED ARAB EMIRATES      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 6,448 7,525  
NETHERLANDS      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 2,625 2,546  
KAZAKHSTAN      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 1,552 2,052  
SPAIN      
Geographic Reporting Disclosure [Line Items]      
Property, plant & equipment, net 1,506 1,705  
All Other      
Geographic Reporting Disclosure [Line Items]      
Net sales 182,321 173,065 $ 245,155
Property, plant & equipment, net 1,950 1,467  
General Corporate      
Geographic Reporting Disclosure [Line Items]      
Assets $ 126,246 $ 171,103