Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	May 02, 2015	Jan. 31, 2015	May 03, 2014
Current Assets
Cash and cash equivalents	$ 761,356	$ 696,608	$ 595,950
Short-term investments	500us-gaap_ShortTermInvestments	500us-gaap_ShortTermInvestments	0us-gaap_ShortTermInvestments
Accounts receivable	88,258us-gaap_ReceivablesNetCurrent	73,278us-gaap_ReceivablesNetCurrent	84,492us-gaap_ReceivablesNetCurrent
Merchandise inventory	1,504,281us-gaap_InventoryNet	1,372,675us-gaap_InventoryNet	1,250,759us-gaap_InventoryNet
Prepaid expenses and other	119,381us-gaap_OtherAssetsCurrent	106,778us-gaap_OtherAssetsCurrent	118,751us-gaap_OtherAssetsCurrent
Deferred income taxes	12,590	12,951	13,070
Total current assets	2,486,366us-gaap_AssetsCurrent	2,262,790us-gaap_AssetsCurrent	2,063,022us-gaap_AssetsCurrent
Property and Equipment
Land and buildings	948,551rost_LandAndBuildings	952,428rost_LandAndBuildings	625,371rost_LandAndBuildings
Fixtures and equipment	1,962,115us-gaap_FurnitureAndFixturesGross	1,933,383us-gaap_FurnitureAndFixturesGross	1,722,928us-gaap_FurnitureAndFixturesGross
Leasehold improvements	876,002us-gaap_LeaseholdImprovementsGross	854,572us-gaap_LeaseholdImprovementsGross	819,524us-gaap_LeaseholdImprovementsGross
Construction-in-progress	302,464us-gaap_ConstructionInProgressGross	293,715us-gaap_ConstructionInProgressGross	362,076us-gaap_ConstructionInProgressGross
Property and equipment, gross	4,089,132us-gaap_PropertyPlantAndEquipmentGross	4,034,098us-gaap_PropertyPlantAndEquipmentGross	3,529,899us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization	1,812,385	1,760,346	1,605,861
Property and equipment, net	2,276,747us-gaap_PropertyPlantAndEquipmentNet	2,273,752us-gaap_PropertyPlantAndEquipmentNet	1,924,038us-gaap_PropertyPlantAndEquipmentNet
Long-term investments	3,141us-gaap_LongTermInvestments	3,110us-gaap_LongTermInvestments	3,670us-gaap_LongTermInvestments
Other long-term assets	169,795us-gaap_OtherAssetsNoncurrent	160,669us-gaap_OtherAssetsNoncurrent	160,558us-gaap_OtherAssetsNoncurrent
Total assets	4,936,049us-gaap_Assets	4,700,321us-gaap_Assets	4,151,288us-gaap_Assets
Current Liabilities
Accounts payable	1,128,808us-gaap_AccountsPayableCurrent	1,000,700us-gaap_AccountsPayableCurrent	930,576us-gaap_AccountsPayableCurrent
Accrued expenses and other	389,804us-gaap_AccruedLiabilitiesCurrent	385,325us-gaap_AccruedLiabilitiesCurrent	352,559us-gaap_AccruedLiabilitiesCurrent
Accrued payroll and benefits	198,081	256,141	171,535
Income taxes payable	108,314us-gaap_AccruedIncomeTaxesCurrent	17,202us-gaap_AccruedIncomeTaxesCurrent	121,683us-gaap_AccruedIncomeTaxesCurrent
Total current liabilities	1,825,007us-gaap_LiabilitiesCurrent	1,659,368us-gaap_LiabilitiesCurrent	1,576,353us-gaap_LiabilitiesCurrent
Long-term debt	395,677us-gaap_LongTermDebtNoncurrent	395,562us-gaap_LongTermDebtNoncurrent	149,694us-gaap_LongTermDebtNoncurrent
Other long-term liabilities	296,490us-gaap_OtherLiabilitiesNoncurrent	279,500us-gaap_OtherLiabilitiesNoncurrent	286,672us-gaap_OtherLiabilitiesNoncurrent
Deferred income taxes	85,376	86,681	63,291
Commitments and contingencies
Stockholders’ Equity
Common stock	2,060us-gaap_CommonStockValue	2,075us-gaap_CommonStockValue	2,119us-gaap_CommonStockValue
Additional paid-in capital	1,068,554	1,015,681	970,187
Treasury stock	(222,571)us-gaap_TreasuryStockValue	(160,600)us-gaap_TreasuryStockValue	(157,030)us-gaap_TreasuryStockValue
Accumulated other comprehensive income	248	330	356
Retained earnings	1,485,208	1,421,724	1,259,646
Total stockholders’ equity	2,333,499us-gaap_StockholdersEquity	2,279,210us-gaap_StockholdersEquity	2,075,278us-gaap_StockholdersEquity
Total liabilities and stockholders’ equity	$ 4,936,049	$ 4,700,321	$ 4,151,288

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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