Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	May 02, 2015	Jan. 31, 2015	May 03, 2014
Current Assets:
Cash and cash equivalents	$ 94,294	$ 93,946	$ 79,468
Short-term investments	177,471	162,185	159,286
Restricted cash and investments	4,474	4,479	4,699
Accounts receivable, net of allowance for doubtful accounts	38,316	41,023	41,036
Merchandise inventories	133,862	137,549	129,652
Deferred income taxes	4,492	4,291	4,752
Prepaid expenses	13,384	10,978	10,522
Total Current Assets	466,293	454,451	429,415
Property and equipment - net	133,480	135,181	142,989
DeferredTaxAssetsNetNoncurrent	4,567	3,363	1,375
Other assets	17,894	15,283	9,458
Total Assets	622,234	608,278	583,237
Current Liabilities:
Accounts payable	101,116	111,674	96,816
Accrued expenses	47,322	48,404	44,258
Accrued benefits	4,310	19,567	6,009
Accrued income taxes	32,321	14,256	32,479
Total Current Liabilities	185,069	193,901	179,562
Deferred tax liabilities noncurrent	0	0	0
Other noncurrent liabilities (primarily deferred rent)	34,177	34,179	30,170
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	934
Additional paid-in capital	85,983	85,029	81,324
Retained earnings	315,616	293,452	290,520
Accumulated other comprehensive income	454	786	727
Total Stockholders' Equity	402,988	380,198	373,505
Liabilities And Stockholders Equity	622,234	608,278	583,237
Common Class A [Member]
Class of Stock [Line Items]
Common stock	877	873	876
Common Class B [Member]
Class of Stock [Line Items]
Common stock	$ 58	$ 58	$ 58