XML 68 R35.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Fair Value of Financial Instruments) - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
May 04, 2013
Feb. 02, 2013
Apr. 28, 2012
Jan. 28, 2012
Significant Accounting Policies [Line Items]        
Fair value of cash equivalents $ 30.1 $ 35.7 $ 9.6 $ 41.0