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Fair Value Measurements (Policies)
12 Months Ended
Aug. 02, 2013
Fair Value Measurements [Abstract]  
Fair value measurements
Fair value for certain of the Company's assets and liabilities is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In determining fair value, a three level hierarchy for inputs is used. These levels are:
 
·Quoted Prices in Active Markets for Identical Assets ("Level 1") – quoted prices (unadjusted) for an identical asset or liability in an active market.
 
·Significant Other Observable Inputs ("Level 2") – quoted prices for a similar asset or liability in an active market or model-derived valuations in which all significant inputs are observable for substantially the full term of the asset or liability.
 
·Significant Unobservable Inputs ("Level 3") – unobservable and significant to the fair value measurement of the asset or liability.
 
The Company's money market fund investments and deferred compensation plan assets are measured at fair value using quoted market prices. The fair values of the Company's interest rate swap asset and liabilities are determined based on the present value of expected future cash flows. Since the Company's interest rate swap values are based on the LIBOR forward curve, which is observable at commonly quoted intervals for the full terms of the swaps, it is considered a Level 2 input. Nonperformance risk is reflected in determining the fair value of the interest rate swaps by using the Company's credit spread less the risk-free interest rate, both of which are observable at commonly quoted intervals for the terms of the swaps. Thus, the adjustment for nonperformance risk is also considered a Level 2 input.
 
The fair values of accounts receivable and accounts payable at August 2, 2013 and August 3, 2012, approximate their carrying amounts because of their short duration. The fair value of the Company's variable rate debt, based on quoted market prices, which are considered Level 1 inputs, approximates its carrying amounts at August 2, 2013 and August 3, 2012.