Book Cash Overdrafts

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- Definition

Closed Stores During Period

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No definition available.

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- Definition

Inventory, Held for Sale, Storage Period

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No definition available.

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- Definition

Lease loss liability.

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No definition available.

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- Definition

Number of buying offices in California.

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No definition available.

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- Definition

Number Of Distribution Centers

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No definition available.

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- Definition

Number of warehouses.

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No definition available.

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- Definition

Percent Of Stores Located In California.

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No definition available.

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- Definition

Sales and Purchase Agreement, Property Purchase Price Agreed Upon

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No definition available.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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-Publisher FASB

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-SubTopic 35

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Glossary Contingent Stock Agreement

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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-Glossary Cash

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount of interest capitalized during the period.

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-Name Accounting Standards Codification

-Glossary Allowance for Funds Used during Construction

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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The number of states the entity operates in as of the balance sheet date.

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No definition available.

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- Definition

Represents the number of stores.

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No definition available.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Jan. 31, 2015 segment center	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012	Sep. 30, 2014
Summary Of Significant Accounting Policies [Line Items]
Number of distribution centers	5rost_NumberOfDistributionCenters
Number of reportable segments	1us-gaap_NumberOfReportableSegments
Purchase obligations	$ 1,953,000,000
Fair value of cash and cash equivalents considered as Level 1 inputs	696,608,000	423,168,000	646,761,000	649,835,000
Packaway inventory, storage period, less than	6 months
Depreciation and amortization expense on property and equipment	232,959,000	206,111,000	185,491,000
Capitalized interest	10,825,000us-gaap_InterestCostsCapitalized	10,799,000us-gaap_InterestCostsCapitalized	3,851,000us-gaap_InterestCostsCapitalized
Asset impairment charges	0us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges	0us-gaap_AssetImpairmentCharges
Lease loss liability	2,700,000rost_LeaseLossLiability	6,300,000rost_LeaseLossLiability
Book cash overdrafts	123,800,000rost_BookCashOverdrafts	75,700,000rost_BookCashOverdrafts
Advertising costs	72,100,000us-gaap_AdvertisingExpense	70,200,000us-gaap_AdvertisingExpense	67,700,000us-gaap_AdvertisingExpense
Anti-dilutive weighted average shares excluded from EPS calculation	2,500	2,900	53,900
Property, Plant and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment purchased but not yet paid	58,600,000	61,300,000	23,700,000
Minimum [Member] \| Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	3 years
Minimum [Member] \| Land Improvements and Buildings [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	20 years
Maximum [Member] \| Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	12 years
Maximum [Member] \| Land Improvements and Buildings [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment estimated useful life, straight-line method	40 years
Ross Dress For Less [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of stores	1,210
Number of states company operates in	33
Number of stores closed	9	11
DD's Discounts [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of stores	152
Number of states company operates in	15
California [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of distribution centers	2
Number of buying offices	1
Number of warehouses	2
Stores as percentage of total	25.00%
New York City Office [Member]
Summary Of Significant Accounting Policies [Line Items]
Sales and purchase agreement, property purchase price agreed upon					$ 222,000,000