Share-Based Compensation and Employee Benefit Plans - Summary of Changes in RSAs and RSUs Outstanding (Details) - Amended and Restated 2017 Share Incentive Plan (SGH Plan) - RSAs and RSUs - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	May 26, 2017	Aug. 26, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Awards outstanding, Shares, Beginning Balance	4,000
Awards granted, Shares	490,000
Awards vested and paid out, Shares	(1,000)
Awards outstanding, Shares, Ending Balance	493,000
Awards outstanding, Weighted average grant date fair value per share, Beginning Balance	$ 26.97
Awards granted, Weighted average grant date fair value per share	7.75
Awards vested and paid out, Weighted average grant date fair value per share	26.97
Awards outstanding, Weighted average grant date fair value per share	$ 7.87
Awards outstanding, Aggregate intrinsic value	$ 6,527	$ 40