Quarterly report pursuant to Section 13 or 15(d)

Acquisitions Schedule of Assets Acquired and Liabilities Assumed for Business Acquisition (Details)

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Acquisitions Schedule of Assets Acquired and Liabilities Assumed for Business Acquisition (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 02, 2017
Feb. 28, 2018
Feb. 28, 2017
Feb. 28, 2018
Feb. 28, 2017
Dec. 01, 2017
Fair Value of Assets Acquired and Liabilities Assumed as Part of Business Combination [Line Items]            
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]      
The following table summarizes the preliminary estimated fair value of the assets acquired and the liabilities assumed, at the date of acquisition, for Mirage (in thousands):
 
Total
Accounts receivable, net
$
1,090

Inventories, net
3,004

Other current assets
90

Property, plant & equipment
2,014

Goodwill
8,856

Other intangible assets, net
4,126

Trade accounts payable
(1,299
)
Accrued compensation and benefits
(97
)
Income taxes payable
(586
)
Deferred income taxes
(681
)
Cash paid, net of cash acquired
$
16,517

   
Cash paid for business acquisitions, Net of Cash Acquired       $ 16,517 $ 0  
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Related to Divested Business, Net Of Tax   $ 67,645 $ 0 $ 67,645 $ 0  
Mirage Machines [Member] [Member]            
Fair Value of Assets Acquired and Liabilities Assumed as Part of Business Combination [Line Items]            
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables           $ 1,090
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory           3,004
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other           90
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment           2,014
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Goodwill           8,856
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill           4,126
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable           (1,299)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Compensation and Benefits           (97)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Income Taxes Payable           (586)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities           $ (681)
Cash paid for business acquisitions, Net of Cash Acquired $ 16,500