Accumulated Other Comprehensive Loss - Amounts Reclassified from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Nov. 24, 2018	Nov. 25, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income (loss)	$ (38,320)	$ (34,206)
Total Amounts Reclassified, Net of Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income (loss)	(44)	4
Derivative Financial Instruments, Net
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income (loss)	(44)	4
Derivative Financial Instruments, Net | Forward Contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Forward contracts	$ (44)	$ 4