Restructuring And Other Charges (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	May 31, 2014
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance, August 31, 2013	$ 2,460
Charged to operating expenses	6,246
Cash payments	(6,003)
Accrued restructuring balance, May 31, 2014	2,703
Workforce Reductions [Member]
Restructuring Cost and Reserve [Line Items]
Accrued restructuring balance, August 31, 2013	2,460
Charged to operating expenses	4,216
Cash payments	(4,662)
Accrued restructuring balance, May 31, 2014	2,014
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Charged to operating expenses	2,030
Cash payments	(1,341)
Accrued restructuring balance, May 31, 2014	689
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Non-recurring transaction, integration costs and restructuring charges associated with the acquisition in 2014	2,000
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Non-recurring transaction, integration costs and restructuring charges associated with the acquisition in 2014	$ 3,000