Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Summary of Financial Information by Reportable Segment and Product Line (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
May 31, 2017
USD ($)
May 31, 2016
USD ($)
Feb. 29, 2016
USD ($)
May 31, 2017
USD ($)
Segment
May 31, 2016
USD ($)
Aug. 31, 2016
USD ($)
Segment Reporting Information [Line Items]            
Asset Impairment Charges $ 0 $ 0 $ 186,511 $ 0 $ 186,511  
Number of reportable segments | Segment       3    
Net sales 295,427 305,341   $ 820,089 873,641  
Operating profit (Loss) 27,332 28,343   49,003 (118,401)  
Assets 1,488,039     1,488,039   $ 1,438,660
Industrial Tools [Member]            
Segment Reporting Information [Line Items]            
Net sales 87,404 81,770   245,122 233,599  
Industrial            
Segment Reporting Information [Line Items]            
Net sales 100,503 95,750   279,441 265,809  
Operating profit (Loss) 23,705 21,712   60,860 58,994  
Assets 308,148     308,148   308,222
Heavy Lifting Technology [Member]            
Segment Reporting Information [Line Items]            
Net sales 13,099 13,980   34,319 32,210  
Energy            
Segment Reporting Information [Line Items]            
Asset Impairment Charges         140,900  
Net sales 83,480 101,300   241,010 301,288  
Operating profit (Loss) 905 10,870   3,537 (115,803)  
Assets 501,528     501,528   479,169
Energy Maintenance & Integrity            
Segment Reporting Information [Line Items]            
Net sales 59,905 73,377   176,316 210,762  
Other Energy Solutions [Member]            
Segment Reporting Information [Line Items]            
Net sales 23,575 27,923   64,694 90,526  
Engineered Solutions            
Segment Reporting Information [Line Items]            
Asset Impairment Charges         45,700  
Net sales 111,444 108,291   299,638 306,544  
Operating profit (Loss) 8,105 3,651   10,676 (37,943)  
Assets 511,391     511,391   493,840
On-Highway            
Segment Reporting Information [Line Items]            
Net sales 57,710 58,440   159,952 161,949  
Agriculture, Off-Highway and Other            
Segment Reporting Information [Line Items]            
Net sales 53,734 49,851   139,686 144,595  
General Corporate            
Segment Reporting Information [Line Items]            
Operating profit (Loss) (5,383) $ (7,890)   (26,070) $ (23,649)  
Assets $ 166,972     $ 166,972   $ 157,429