Share Based Compensation Plans (Details) (USD $)	3 Months Ended	9 Months Ended
	Oct. 29, 2011 Year	Oct. 29, 2011 Year
Summary of Stock Option Activity
Shares, Beginning Balance		1,563,473
Shares, Granted		138,250
Shares, Exercised		(275,471)
Shares, Forfeited		(5,000)
Shares, Expired		(3,216)
Shares, Ending Balance	1,418,036	1,418,036
Shares Exercisable, Ending Balance	713,523	713,523
Weighted Average Exercise Price, Beginning of Period		$ 20.64
Weighted Average Exercise Price, Granted	$ 27.84	$ 27.84
Weighted Average Exercise Price, Exercised	$ 15.50	$ 15.50
Weighted Average Exercise Price, Forfeited	$ 22.72	$ 22.72
Weighted Average Exercise Price, Expired	$ 13.74	$ 13.74
Weighted Average Exercise Price, End of Period	$ 22.35	$ 22.35
Weighted Average Exercise Price, Exercisable, Ending Balance	$ 20.43	$ 20.43
Weighted Average Assumptions used to Fair value Stock option
Risk-free interest rate	0.98%	2.16%
Expected lives	5.0	5.0
Dividend yield	1.74%	1.70%
Expected volatility	57.92%	53.67%