Quarterly report pursuant to Section 13 or 15(d)

Divestiture Activities (Details)

v3.10.0.1
Divestiture Activities (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
May 31, 2017
May 31, 2018
May 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of business, net of transaction costs   $ 8,780 $ 0
Viking [Domain]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Proceeds from sale of business, net of transaction costs   8,780  
Transaction Costs in connection with Disposal of Business   1,600  
Divestiture Charges   12,400  
Business Exit Costs   3,000  
Discrete Income Tax Expense   9,400  
Viking [Member]      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Disposal Group, Not Discontinued Operation, annual revenue $ 4,100 $ 2,700 $ 15,600