Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
May 02, 2015	May 03, 2014
Cash Flows From Operating Activities:
Net income	$ 32,525us-gaap_NetIncomeLoss	$ 39,882us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities —
Depreciation and amortization	30,743us-gaap_DepreciationAndAmortization	30,083us-gaap_DepreciationAndAmortization
Loss on disposal and impairment of property and equipment	6,277	0
Deferred tax benefit	(425)us-gaap_DeferredIncomeTaxExpenseBenefit	(1,164)us-gaap_DeferredIncomeTaxExpenseBenefit
Stock-based compensation expense	7,631us-gaap_ShareBasedCompensation	6,474us-gaap_ShareBasedCompensation
Excess tax benefit from stock-based compensation	(2,012)	(925)
Deferred rent and lease credits	(4,283)chs_DeferredRentandLeaseCredits	(4,671)chs_DeferredRentandLeaseCredits
Changes in assets and liabilities:
Inventories	(35,154)us-gaap_IncreaseDecreaseInInventories	(30,772)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	(3,468)	(2,084)
Accounts payable	(8,979)	6,111
Accrued and other liabilities	18,884	24,534
Net cash provided by operating activities	41,739	67,468
Cash Flows From Investing Activities:
Purchases of marketable securities	(18,252)	(15,053)
Proceeds from sale of marketable securities	96,351	40,063
Purchases of property and equipment, net	(19,839)	(34,506)
Net cash provided by (used in) investing activities	58,260	(9,496)
Cash Flows From Financing Activities:
Proceeds from borrowings	124,000	0
Proceeds from issuance of common stock	8,025	2,945
Excess tax benefit from stock-based compensation	2,012	925
Dividends paid	(11,076)us-gaap_PaymentsOfDividendsCommonStock	(11,439)us-gaap_PaymentsOfDividendsCommonStock
Repurchase of common stock	(258,450)	(6,309)
Net cash used in financing activities	(135,489)	(13,878)
Effects of exchange rate changes on cash and cash equivalents	(210)	(9)
Net (decrease) increase in cash and cash equivalents	(35,700)	44,085
Cash and Cash Equivalents, Beginning of period	133,351	36,444
Cash and Cash Equivalents, End of period	97,651	80,529
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	466us-gaap_InterestPaid	68us-gaap_InterestPaid
Cash paid for income taxes, net	$ 6,546us-gaap_IncomeTaxesPaidNet	$ 272us-gaap_IncomeTaxesPaidNet

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration