Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jan. 28, 2012	Jan. 29, 2011
Current Assets:
Cash and cash equivalents	$ 34,893	$ 48,630
Short-term investments	205,771	181,395
Restricted cash and investments	5,325	4,826
Accounts receivable, net of allowance for doubtful accounts of $3,233, $3,301 and $3,274 at July 31, 2010, August 1, 2009 and January 30, 2010, respectively	43,024	39,703
Merchandise inventories	130,382	144,028
Deferred income taxes	3,579	3,660
Prepaid expenses	6,158	3,199
Total Current Assets	429,132	425,441
Property and equipment - net	115,445	99,773
Other assets	6,512	7,545
Total Assets	551,089	532,759
Current Liabilities:
Accounts payable	94,073	103,898
Accrued expenses	37,584	35,318
Accrued bonus and benefits	10,192	22,841
Accrued income taxes	15,144	11,861
Total Current Liabilities	156,993	173,918
Deferred tax liabilities noncurrent	7,887	9,540
Other noncurrent liabilities (primarily deferred rent)	19,530	15,287
Commitments And Contingenciess
Stockholders' Equity:
Preferred stock, $100 par value per share, 100,000 shares authorized, none issued	0	0
Class of Stock [Line Items]
Common stock	972	983
Additional paid-in capital	72,030	68,537
Retained earnings	292,741	264,218
Accumulated other comprehensive income	936	276
Total Stockholders' Equity	366,679	334,014
Liabilities And Stockholders Equity	551,089	532,759
Common Class A [Member]
Class of Stock [Line Items]
Common stock	914	925
Common Class B [Member]
Class of Stock [Line Items]
Common stock	$ 58	$ 58