SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $)	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Amortizing intangible assets:
Gross Carrying Amount	$ 35,150,000	$ 37,623,000
Accumulated Amortization	10,809,000	8,143,000
Net	24,341,000	29,480,000
Total intangible assets
Intangible assets, gross	633,045,000	66,479,000
Intangible assets, net	52,496,000	58,336,000
Amortization expense	4,300,000	3,500,000	1,900,000
Estimated future amortization expense on finite lived intangible assets
2013	4,022,000
2014	3,909,000
2015	3,909,000
2016	2,688,000
2017	2,102,000
2018 and thereafter	7,711,000
Total future amortization expense	24,341,000
Customer relationships
Amortizing intangible assets:
Gross Carrying Amount	32,120,000	35,390,000
Accumulated Amortization	10,286,000	7,856,000
Net	21,834,000	27,534,000
Trademarks and tradenames
Amortizing intangible assets:
Gross Carrying Amount	3,030,000	2,233,000
Accumulated Amortization	523,000	287,000
Net	2,507,000	1,946,000
Indefinite lived intangible assets:
Indefinite lived intangible assets	$ 28,155,000	$ 28,856,000