Commitments and Contingent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013
Future minimum rental payments under noncancelable operating leases
Total minimum payments, Remainder of Fiscal 2014	$ 4,170
Total minimum payments, Fiscal 2015	7,891
Total minimum payments, Fiscal 2016	7,755
Total minimum payments, Fiscal 2017	5,962
Total minimum payments, Fiscal 2018	4,553
Total minimum payments, Thereafter	5,328
Total	$ 35,659