Annual report pursuant to Section 13 and 15(d)

Financial Information from Continuing Operations By Geographic Region (Detail)

v2.4.0.8
Financial Information from Continuing Operations By Geographic Region (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Aug. 31, 2014
May 31, 2014
Feb. 28, 2014
Nov. 30, 2013
Aug. 31, 2013
May 31, 2013
Feb. 28, 2013
Nov. 30, 2012
Aug. 31, 2014
Aug. 31, 2013
Aug. 31, 2012
Geographic Reporting Disclosure [Line Items]                      
Assets of Disposal Group, Including Discontinued Operation $ 0       $ 272,606       $ 0 $ 272,606  
Net sales 354,349 378,187 327,770 339,556 327,260 344,205 300,468 307,809 1,399,862 1,279,742 1,276,521
Long-Lived Assets 184,964       205,182       184,964 205,182  
United States
                      
Geographic Reporting Disclosure [Line Items]                      
Net sales                 573,590 549,057 599,831
Long-Lived Assets 44,971       41,161       44,971 41,161  
United Kingdom
                      
Geographic Reporting Disclosure [Line Items]                      
Net sales                 162,508 144,131 141,037
Long-Lived Assets 28,364       54,136       28,364 54,136  
Netherlands
                      
Geographic Reporting Disclosure [Line Items]                      
Net sales                 151,549 159,396 185,112
Norway
                      
Geographic Reporting Disclosure [Line Items]                      
Long-Lived Assets 29,715       59,557       29,715 59,557  
Australia
                      
Geographic Reporting Disclosure [Line Items]                      
Net sales                 82,778 68,255 47,472
Long-Lived Assets 20,431       5,104       20,431 5,104  
France
                      
Geographic Reporting Disclosure [Line Items]                      
Net sales                 53,542 52,806 48,681
China
                      
Geographic Reporting Disclosure [Line Items]                      
Long-Lived Assets 19,166       19,551       19,166 19,551  
All other
                      
Geographic Reporting Disclosure [Line Items]                      
Net sales                 375,895 306,097 254,388
Long-Lived Assets $ 42,317       $ 25,673       $ 42,317 $ 25,673