Investments And Restricted Investments (Maturities Of Investment And Restricted Investment Securities) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 01, 2014	Feb. 02, 2013
Investments and Restricted Investments [Line Items]
Total, Cost basis	$ 19,227	$ 10,099
Fair value	19,825	11,000
Investments [Member]
Investments and Restricted Investments [Line Items]
Maturing in one year or less, Cost basis	12,005
Maturing after one year through five years, Cost basis	3,384
Maturing after five years through ten years, Cost basis	0
Total, Cost basis	15,389	4,991
Maturing in one year or less, Estimated fair value	12,006
Maturing after one year through five years, Estimated fair value	3,710
Maturing after five through ten years, Estimated fair value	0
Fair value	15,716	5,461
Restricted Investments [Member]
Investments and Restricted Investments [Line Items]
Maturing in one year or less, Cost basis	254
Maturing after one year through five years, Cost basis	3,186
Maturing after five years through ten years, Cost basis	398
Total, Cost basis	3,838	5,108
Maturing in one year or less, Estimated fair value	260
Maturing after one year through five years, Estimated fair value	3,425
Maturing after five through ten years, Estimated fair value	424
Fair value	$ 4,109	$ 5,539