Annual report pursuant to Section 13 and 15(d)

Reconciliation of Changes in Accrued Product Warranty and Restructuring (Detail)

v3.5.0.2
Reconciliation of Changes in Accrued Product Warranty and Restructuring (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2016
Aug. 31, 2015
Aug. 31, 2014
Restructuring Cost and Reserve [Line Items]      
Balance as of August 31, 2015 $ 0    
Restructuring charges 14,571 $ 0 $ 0
Cash payments (7,519)    
Non-cash uses of reserve (793)    
Impact of changes in foreign currency rates 14    
Balance as of August 31, 2016 6,273 0  
Accounts Receivable, allowance for doubtful accounts 7,800 4,000  
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]      
Beginning balance 3,719 4,056  
Product Warranty Accrual, Additions from Business Acquisition 3 0  
Product Warranty Accrual, Warranties Issued 5,985 4,929  
Warranty payments and costs incurred (4,058) (5,009)  
Product Warranty Accrual, Currency Translation, Increase (Decrease) (57) (257)  
Ending balance 5,592 3,719 $ 4,056
Industrial      
Restructuring Cost and Reserve [Line Items]      
Balance as of August 31, 2015 0    
Restructuring charges 3,158    
Cash payments (1,772)    
Non-cash uses of reserve (54)    
Impact of changes in foreign currency rates 11    
Balance as of August 31, 2016 1,343 0  
Energy      
Restructuring Cost and Reserve [Line Items]      
Balance as of August 31, 2015 0    
Restructuring charges 5,544    
Cash payments (2,345)    
Non-cash uses of reserve (166)    
Impact of changes in foreign currency rates (12)    
Balance as of August 31, 2016 3,021 0  
Engineered Solutions      
Restructuring Cost and Reserve [Line Items]      
Balance as of August 31, 2015 0    
Restructuring charges 5,411    
Cash payments (3,199)    
Non-cash uses of reserve (364)    
Impact of changes in foreign currency rates 15    
Balance as of August 31, 2016 1,863 0  
Corporation      
Restructuring Cost and Reserve [Line Items]      
Balance as of August 31, 2015 0    
Restructuring charges 458    
Cash payments (203)    
Non-cash uses of reserve (209)    
Impact of changes in foreign currency rates 0    
Balance as of August 31, 2016 $ 46 $ 0