Fair Value of Noncontributory Defined Benefit Retirement Plan Assets (Detail) (Noncontributory Pension Plan, USD $) In Thousands, unless otherwise specified	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	$ 11,813	$ 10,105	$ 9,927
Common Stock
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	6,717
Cash
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	389
Mutual Funds | U S Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	482
Mutual Funds | International Equity
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	1,134
Mutual Funds | Bond
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	3,091
Fair Value, Inputs, Level 1
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	11,813
Fair Value, Inputs, Level 1 | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	6,717
Fair Value, Inputs, Level 1 | Cash
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	389
Fair Value, Inputs, Level 1 | Mutual Funds | U S Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	482
Fair Value, Inputs, Level 1 | Mutual Funds | International Equity
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	1,134
Fair Value, Inputs, Level 1 | Mutual Funds | Bond
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets, fair value	$ 3,091