CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2021	Jul. 25, 2020
Statement of Comprehensive Income [Abstract]
Tax expense (benefit) on unrealized losses on interest rate swaps	$ 604	$ (262)
Tax expense of amortization of pension actuarial loss	179	158
Tax benefit of pension adjustment to funded status	1,484	536
Tax expense on pension settlement loss	$ 178	$ 444

Amount of tax expense (benefit) for increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

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Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

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Amount, before reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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