Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Summary of Financial Information by Reportable Segment and Product Line (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
May 31, 2014
May 31, 2013
May 31, 2014
Segment
May 31, 2013
Aug. 31, 2013
Segment Reporting Information [Line Items]          
Number of reportable segments     3    
Net sales $ 378,187 $ 344,205 $ 1,045,513 $ 952,482  
Operating profit (Loss) 58,780 57,042 141,408 137,387  
Assets 1,947,705   1,947,705   2,119,332
Assets of discontinued operations 0   0   272,606
Industrial
          
Segment Reporting Information [Line Items]          
Net sales 109,809 111,308 302,022 311,429  
Operating profit (Loss) 34,123 32,426 87,496 85,782  
Assets 322,609   322,609   280,110
Energy
          
Segment Reporting Information [Line Items]          
Net sales 125,231 99,158 339,187 270,721  
Operating profit (Loss) 19,936 19,736 38,363 44,800  
Assets 805,056   805,056   817,547
Engineered Solutions
          
Segment Reporting Information [Line Items]          
Net sales 143,147 133,739 404,304 370,332  
Operating profit (Loss) 13,560 12,754 36,297 28,654  
Assets 688,474   688,474   652,581
Vehicle Systems
          
Segment Reporting Information [Line Items]          
Net sales 75,442 68,202 214,369 189,064  
Other
          
Segment Reporting Information [Line Items]          
Net sales 67,705 65,537 189,935 181,268  
General Corporate
          
Segment Reporting Information [Line Items]          
Operating profit (Loss) (8,839) (7,874) (20,748) (21,849)  
Assets $ 131,566   $ 131,566   $ 96,488