Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Summary of Financial Information by Reportable Segment and Product Line (Details)
$ in Thousands
3 Months Ended
Nov. 30, 2017
USD ($)
Segment
Nov. 30, 2016
USD ($)
Aug. 31, 2017
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | Segment 3    
Net sales $ 288,955 $ 265,793  
Operating profit (Loss) 14,673 8,471  
Assets 1,490,241   $ 1,516,955
Industrial Tools [Member]      
Segment Reporting Information [Line Items]      
Net sales 84,510 79,039  
Industrial      
Segment Reporting Information [Line Items]      
Net sales 96,916 87,290  
Operating profit (Loss) 18,243 18,776  
Assets 314,215   329,134
Heavy Lifting Technology [Member]      
Segment Reporting Information [Line Items]      
Net sales 12,406 8,251  
Energy      
Segment Reporting Information [Line Items]      
Net sales 75,841 84,646  
Operating profit (Loss) 293 3,210  
Assets 480,402   482,963
Energy Maintenance & Integrity      
Segment Reporting Information [Line Items]      
Net sales 56,710 64,821  
Other Energy Solutions [Member]      
Segment Reporting Information [Line Items]      
Net sales 19,131 19,825  
Engineered Solutions      
Segment Reporting Information [Line Items]      
Net sales 116,198 93,857  
Operating profit (Loss) 6,334 755  
Assets 539,978   531,068
On-Highway      
Segment Reporting Information [Line Items]      
Net sales 64,882 51,630  
Agriculture, Off-Highway and Other      
Segment Reporting Information [Line Items]      
Net sales 51,316 42,227  
General Corporate      
Segment Reporting Information [Line Items]      
Operating profit (Loss) (10,197) $ (14,270)  
Assets $ 155,646   $ 173,790