CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Treasury Stock	Additional Paid in Capital	Unallocated Shares of ESOP	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Comprehensive Income
Balances at Jul. 30, 2011	$ 869,667	$ 485	$ (708)	$ 345,036	$ (542)	$ 4,862	$ 520,534
Balances (in shares) at Jul. 30, 2011	48,493	48,520	27
Increase (Decrease) in Stockholders' Equity
Allocation of shares to ESOP	160				160
Stock option exercises and restricted stock vestings, net	3,151	4	257	2,890
Stock option exercises and restricted stock vestings, net (in shares)		385	(10)
Share-based compensation	8,965			8,965
Excess tax benefits associated with stock compensation plans	792			792
Change in fair value of swap agreements, net of tax	575					575		575
Foreign currency translation	(1,829)					(1,829)		(1,829)
Net income	66,200						66,200	66,200
Total comprehensive income	64,946
Balances at Apr. 28, 2012	$ 947,681	$ 489	$ (451)	$ 357,683	$ (382)	$ 3,608	$ 586,734
Balances (in shares) at Apr. 28, 2012	48,888	48,905	17