v2.4.0.6
Additional Financial Information - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 03, 2012
Jan. 23, 2010
Jul. 28, 2012
Jul. 30, 2011
Jul. 31, 2010
Cash Flow Supplemental Disclosures [Line Items]          
Non-cash capital expenditures, capitalization of fixed assets and recognition of related obligations     $ 13.4 $ 3.6 $ 6.5
Common stock split through stock dividend 2   2    
Shares issued in connection with the Tween Brands Merger         251.2
Common stock issued to redeem Convertible Notes, value   $ 156.4     $ 156.4