Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Aug. 01, 2014		Aug. 02, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 63,068	[1]	$ 57,767	[1]
Interest rate swap asset (see Note 6)	240		883
Deferred compensation plan assets	25,322	[2]	25,263	[2]
Total assets at fair value	88,630		83,913
Interest rate swap liability (see Note 6)	7,943		11,644
Total liabilities at fair value	7,943		11,644
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	63,068	[1]	57,767	[1]
Interest rate swap asset (see Note 6)	0		0
Deferred compensation plan assets	25,322	[2]	25,263	[2]
Total assets at fair value	88,390		83,030
Interest rate swap liability (see Note 6)	0		0
Total liabilities at fair value	0		0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	[1]	0	[1]
Interest rate swap asset (see Note 6)	240		883
Deferred compensation plan assets	0	[2]	0	[2]
Total assets at fair value	240		883
Interest rate swap liability (see Note 6)	7,943		11,644
Total liabilities at fair value	7,943		11,644
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	[1]	0	[1]
Interest rate swap asset (see Note 6)	0		0
Deferred compensation plan assets	0	[2]	0	[2]
Total assets at fair value	0		0
Interest rate swap liability (see Note 6)	0		0
Total liabilities at fair value	$ 0		$ 0

[1] Consists of money market fund investments.

[2] Represents plan assets invested in mutual funds established under a Rabbi Trust for the Company's non-qualified savings plan and is included in the Consolidated Balance Sheets as other assets (see Note 12).