Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2015	Jan. 31, 2015	Nov. 01, 2014
Current Assets:
Cash and cash equivalents	$ 43,425	$ 93,946	$ 83,749
Short-term investments	216,602	162,185	157,548
Restricted cash and investments	4,473	4,479	4,686
Accounts receivable, net of allowance for doubtful accounts	38,205	41,023	40,555
Merchandise inventories	136,101	137,549	127,786
Deferred income taxes	4,308	4,291	4,720
Prepaid expenses	9,247	10,978	6,165
Total Current Assets	452,361	454,451	425,209
Property and equipment - net	139,512	135,181	145,962
DeferredTaxAssetsNetNoncurrent	4,567	3,363	1,375
Other assets	21,937	15,283	9,943
Total Assets	618,377	608,278	582,489
Current Liabilities:
Accounts payable	104,495	111,674	94,135
Accrued expenses	48,119	48,404	45,300
Accrued benefits	10,095	19,567	14,541
Accrued income taxes	11,284	14,256	17,844
Total Current Liabilities	173,993	193,901	171,820
Deferred tax liabilities noncurrent	0	0	0
Other noncurrent liabilities (primarily deferred rent)	36,847	34,179	32,994
Commitments And Contingenciess	0	0	0
Stockholders' Equity:
Preferred stock, $100 par value per share, 100,000 shares authorized, none issued	0	0	0
Class of Stock [Line Items]
Common stock	935	931	930
Additional paid-in capital	88,729	85,029	83,779
Retained earnings	317,114	293,452	292,187
Accumulated other comprehensive income	759	786	779
Total Stockholders' Equity	407,537	380,198	377,675
Liabilities And Stockholders Equity	618,377	608,278	582,489
Common Class A [Member]
Class of Stock [Line Items]
Common stock	877	873	872
Common Class B [Member]
Class of Stock [Line Items]
Common stock	$ 58	$ 58	$ 58