PENSION PLANS - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 25, 2020	Jan. 26, 2019	Jan. 25, 2020	Jan. 26, 2019
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 50	$ 53	$ 101	$ 106
Interest cost on projected benefit obligations	566	655	1,131	1,310
Expected return on plan assets	(625)	(721)	(1,328)	(1,442)
Loss on settlement	1,246	0	1,246	0
Amortization of net losses	146	145	291	290
Net periodic pension cost	$ 1,383	$ 132	$ 1,441	$ 264