Accumulated Other Comprehensive Loss - Amounts Reclassified from Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 26, 2017	Aug. 27, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive loss	$ (262)	$ (172)
Actuarial (gain) losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive loss	(82)	43
Pension Benefit Liabilities, Net
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive loss	(82)	43
Derivative Financial Instruments, Net
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive loss	(180)	(215)
Derivative Financial Instruments, Net | Forward Contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive loss	$ (180)	$ (215)