CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 23, 2016	Apr. 25, 2015	Apr. 23, 2016	Apr. 25, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 5,882	$ 13,206	$ 16,596	$ 23,688
Other comprehensive income:
Amortization of pension actuarial loss, net of tax	236	192	804	574
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	(4,394)	0	(4,394)	0
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax	11,118	0	11,118	0
Comprehensive income	$ 12,842	$ 13,398	$ 24,124	$ 24,262