Summary of Significant Accounting Policies (Cash and Cash Equivalents) - Additional Information (Detail) (USD $) In Millions, unless otherwise specified			12 Months Ended
Feb. 02, 2013	Jan. 28, 2012	Feb. 02, 2013 Minimum [Member]	Feb. 02, 2013 Maximum [Member]
Significant Accounting Policies [Line Items]
Debit and credit card transaction processing period (hours)			24 hours	48 hours
Cash due from banks	$ 1.6	$ 1.2
Money market funds	$ 34.1	$ 39.8

For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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