Quarterly report pursuant to Section 13 or 15(d)

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

v3.3.1.900
Summary of Financial Information by Reportable Segment and Product Line (Details)
$ in Thousands
 3 Months Ended
Nov. 30, 2015
USD ($)
Segment
Nov. 30, 2014
USD ($)
Aug. 31, 2015
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | Segment 3    
Net sales $ 305,011 $ 327,765  
Operating profit (Loss) 25,371 38,218  
Assets 1,623,535   $ 1,636,917
Industrial      
Segment Reporting Information [Line Items]      
Net sales 88,870 102,413  
Operating profit (Loss) 20,554 26,705  
Assets 288,032   293,738
Energy      
Segment Reporting Information [Line Items]      
Net sales 113,764 111,522  
Operating profit (Loss) 10,094 12,442  
Assets 609,928   601,521
Engineered Solutions      
Segment Reporting Information [Line Items]      
Net sales 102,377 113,830  
Operating profit (Loss) 3,522 6,278  
Assets 580,295   588,200
Vehicle Systems      
Segment Reporting Information [Line Items]      
Net sales 54,075 58,468  
Other      
Segment Reporting Information [Line Items]      
Net sales 48,302 55,362  
General Corporate      
Segment Reporting Information [Line Items]      
Operating profit (Loss) (8,799) $ (7,207)  
Assets $ 145,280   $ 153,458