Non-Vested Stock Option Unit Transactions (Detail) (USD $)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Number of Units
Options Outstanding at Beginning of Period	472,673	489,499	478,500
Options Granted	59,000	94,500	82,000
Options Forfeited	(33,502)	(50,777)	(71,001)
Options Outstanding at End of Period	424,231	472,673	489,499
Weighted Average Grant Date Fair Value Per Unit
Options Outstanding at Beginning of Period	$ 69.86	$ 123.62	$ 123.70
Options Granted	$ 83.16	$ 72.12	$ 120.00
Options Forfeited	$ 77.02	$ 81.56	$ 120.00
Options Outstanding at End of Period	$ 76.56	$ 69.86	$ 123.62
Non-Vested Options
Number of Units
Options Outstanding at Beginning of Period	290,464
Options Granted	59,000
Options Vested	(72,937)
Options Forfeited	(21,070)
Options Outstanding at End of Period	255,457
Weighted Average Grant Date Fair Value Per Unit
Options Outstanding at Beginning of Period	$ 34.12
Options Granted	$ 41.60
Options Vested	$ 41.84
Options Forfeited	$ 43.25
Options Outstanding at End of Period	$ 33.70