Quarterly report pursuant to Section 13 or 15(d)

Summary of Financial Information by Reportable Segment and Product Line (Details)

v3.2.0.727
Summary of Financial Information by Reportable Segment and Product Line (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
May. 31, 2015
USD ($)
May. 31, 2014
USD ($)
May. 31, 2015
USD ($)
Segment
May. 31, 2014
USD ($)
Aug. 31, 2014
USD ($)
Segment Reporting Information [Line Items]          
Number of reportable segments | Segment     3    
Net sales $ 320,100 $ 378,187 $ 948,870 $ 1,045,513  
Operating profit (Loss) 43,002 58,780 24,773 141,408  
Assets 1,661,018   1,661,018   $ 1,856,879
Industrial          
Segment Reporting Information [Line Items]          
Net sales 103,546 109,809 302,448 302,022  
Operating profit (Loss) 29,165 34,123 79,386 87,496  
Assets 289,849   289,849   307,058
Energy          
Segment Reporting Information [Line Items]          
Net sales 99,297 125,231 311,029 339,187  
Operating profit (Loss) 12,774 19,936 (50,457) 38,363  
Assets 619,514   619,514   788,915
Engineered Solutions          
Segment Reporting Information [Line Items]          
Net sales 117,257 143,147 335,393 404,304  
Operating profit (Loss) 8,313 13,560 16,601 36,297  
Assets 624,289   624,289   643,323
Vehicle Systems          
Segment Reporting Information [Line Items]          
Net sales 59,673 75,442 170,122 214,369  
Other          
Segment Reporting Information [Line Items]          
Net sales 57,584 67,705 165,271 189,935  
General Corporate          
Segment Reporting Information [Line Items]          
Operating profit (Loss) (7,250) $ (8,839) (20,757) $ (20,748)  
Assets $ 127,366   $ 127,366   $ 117,583