Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
Jul. 30, 2011	Jul. 31, 2010
OPERATING ACTIVITIES
Net income	$ 48,624	$ 42,012
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	10,775	10,547
Provision For Doubtful Accounts	882	1,499
Share Based Compensation	1,302	1,213
Excess tax benefits from share-based compensation	(89)	(133)
Loss on disposal of property and equipment	415	220
Changes in operating assets and liabilities which provided (used) cash:
Accounts receivable	1,200	(1,092)
Merchandise inventories	26,803	24,492
Prepaid and other assets	(2,437)	(2,145)
Accrued income taxes	11,373	11,686
Accounts payable, accrued expenses and other liabilities	(31,387)	(28,357)
Net cash provided by operating activities	67,461	59,942
INVESTING ACTIVITIES
Expenditures for property and equipment	15,751	8,866
Purchase of short-term investments	79,623	111,454
Sales of short-term investments	25	28
Change in restricted cash and investments	(71,399)	(93,768)
Net cash used in investing activities	(23,950)	(26,524)
FINANCING ACTIVITIES
Dividends paid	12,243	10,304
Repurchase of common stock	2,897	5,840
Proceeds from employee stock purchase plan	254	218
Excess tax benefits from share-based compensation financing activities	89	133
Proceeds From Stock Options Exercised	32	326
Net cash provided used in financing activities	(14,765)	(15,467)
Net increase in cash and cash equivalents	28,746	17,951
Cash and cash equivalents at beginning of period	48,630	50,385
Cash and cash equivalents at end of period	$ 77,376	$ 68,336

Name:	us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 7, 26

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 8, 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 7
-Footnote 1

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 1
-Article 5