Quarterly report pursuant to Section 13 or 15(d)

Contingencies and Litigation - Additional Information (Details)

v3.6.0.2
Contingencies and Litigation - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Nov. 30, 2016
Aug. 31, 2016
Commitments and Contingencies Disclosure [Abstract]    
Outstanding letters of credit $ 15.5 $ 17.8
Document Period End Date Nov. 30, 2016  
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Discounted present value of future minimum lease payments $ 14.6  
Electrical [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Discounted present value of future minimum lease payments $ 11.6