Pension and Savings Plans - Net Periodic Benefit Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		8 Months Ended
	May 05, 2018	May 06, 2017	May 05, 2018	May 06, 2017
Retirement Benefits [Abstract]
Interest cost	$ 2,390	$ 2,385	$ 7,170	$ 7,155
Expected return on plan assets	(4,384)	(4,628)	(13,152)	(13,885)
Amortization of net loss	2,478	3,201	7,433	9,605
Net periodic pension expense	$ 484	$ 958	$ 1,451	$ 2,875