Annual report pursuant to Section 13 and 15(d)

Financial Information from Continuing Operations By Geographic Region (Detail)

v3.10.0.1
Financial Information from Continuing Operations By Geographic Region (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2018
Aug. 31, 2017
Aug. 31, 2016
Geographic Reporting Disclosure [Line Items]      
Percentage Of Export Sales From Domestic To Total Net Sales 7.00%    
Assets $ 1,481,338 $ 1,516,955  
Net sales 1,182,611 1,095,784 $ 1,149,410
Long-Lived Assets 101,735 98,334  
United States      
Geographic Reporting Disclosure [Line Items]      
Net sales 509,952 480,801 477,670
Long-Lived Assets 42,563 36,254  
Netherlands      
Geographic Reporting Disclosure [Line Items]      
Net sales 166,542 130,724 143,517
Long-Lived Assets 12,200 9,134  
FRANCE      
Geographic Reporting Disclosure [Line Items]      
Net sales 40,351 39,563 42,780
AUSTRALIA      
Geographic Reporting Disclosure [Line Items]      
Net sales 28,510 38,924 62,779
UNITED KINGDOM      
Geographic Reporting Disclosure [Line Items]      
Net sales 87,182 84,106 115,183
Long-Lived Assets 4,076 5,467  
China      
Geographic Reporting Disclosure [Line Items]      
Net sales 64,031 68,373 47,312
Long-Lived Assets 14,909 16,332  
SWEDEN      
Geographic Reporting Disclosure [Line Items]      
Net sales 50,517 37,813 35,424
UNITED ARAB EMIRATES      
Geographic Reporting Disclosure [Line Items]      
Net sales 43,707 39,974 55,906
Long-Lived Assets 7,876 8,451  
All other      
Geographic Reporting Disclosure [Line Items]      
Net sales 191,819 175,506 $ 168,839
Long-Lived Assets 20,111 22,696  
General Corporate      
Geographic Reporting Disclosure [Line Items]      
Assets $ 234,036 $ 204,551