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Indebtedness and Credit Agreement (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended 0 Months Ended 2 Months Ended 0 Months Ended 1 Months Ended
Nov. 29, 2014
Nov. 30, 2013
Aug. 31, 2013
Feb. 28, 2015
loan
Mar. 01, 2014
Mar. 02, 2013
Nov. 29, 2013
Feb. 28, 2015
Jul. 31, 2013
Oct. 15, 2014
Feb. 28, 2013
Aug. 31, 2013
Jun. 30, 2012
May 31, 2012
Jan. 13, 2015
Jan. 12, 2015
Jul. 02, 2013
Jun. 30, 2013
Jun. 21, 2013
Feb. 29, 2012
Apr. 02, 2015
Indebtedness and credit agreement                                          
Lease financing obligations       $ 91,993us-gaap_CapitalLeaseObligations $ 107,411us-gaap_CapitalLeaseObligations     $ 91,993us-gaap_CapitalLeaseObligations                          
Total debt       5,644,943us-gaap_DebtAndCapitalLeaseObligations 5,757,143us-gaap_DebtAndCapitalLeaseObligations     5,644,943us-gaap_DebtAndCapitalLeaseObligations                          
Current maturities of long-term debt and lease financing obligations       (100,376)us-gaap_DebtCurrent (49,174)us-gaap_DebtCurrent     (100,376)us-gaap_DebtCurrent                          
Long-term debt and lease financing obligations, less current maturities       5,544,567us-gaap_LongTermDebtAndCapitalLeaseObligations 5,707,969us-gaap_LongTermDebtAndCapitalLeaseObligations     5,544,567us-gaap_LongTermDebtAndCapitalLeaseObligations                          
Credit facility                                          
Number of second priority secured term loan facilities       2rad_NumberOfSecondPrioritySecuredTermLoanFacilities                                  
Ownership interest (as a percent)       100.00%us-gaap_MinorityInterestOwnershipPercentageByParent       100.00%us-gaap_MinorityInterestOwnershipPercentageByParent                          
Gain (loss) on debt retirement (18,512)us-gaap_GainsLossesOnExtinguishmentOfDebt (271)us-gaap_GainsLossesOnExtinguishmentOfDebt (62,172)us-gaap_GainsLossesOnExtinguishmentOfDebt (18,512)us-gaap_GainsLossesOnExtinguishmentOfDebt (62,443)us-gaap_GainsLossesOnExtinguishmentOfDebt (140,502)us-gaap_GainsLossesOnExtinguishmentOfDebt                              
Preferred stock value included in other non-current liabilities       776,629us-gaap_OtherLiabilitiesNoncurrent 843,152us-gaap_OtherLiabilitiesNoncurrent     776,629us-gaap_OtherLiabilitiesNoncurrent                          
Interest Rates and Maturities                                          
Annual weighted average rate (as a percent)       5.70%us-gaap_DebtWeightedAverageInterestRate 6.40%us-gaap_DebtWeightedAverageInterestRate 7.10%us-gaap_DebtWeightedAverageInterestRate   5.70%us-gaap_DebtWeightedAverageInterestRate                          
Maturities                                          
2016       69,535us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths       69,535us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths                          
2017       0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo       0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo                          
2018       0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree       0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree                          
2019       0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour       0us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour                          
2020 and thereafter       5,480,000rad_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter                                  
Class A Cumulative Preferred Stock | Rite Aid Lease Management Co.                                          
Credit facility                                          
Preferred stock outstanding (in shares)           213,000us-gaap_PreferredStockSharesOutstanding
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_MandatorilyRedeemablePreferredStockMember
                             
Par value (in dollars per share)           $ 100us-gaap_PreferredStockParOrStatedValuePerShare
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_MandatorilyRedeemablePreferredStockMember
                             
Rite Aid Lease Management Company                                          
Credit facility                                          
Ownership interest (as a percent)           100.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember
                             
Rite Aid Lease Management Company | Class A Cumulative Preferred Stock                                          
Credit facility                                          
Gain (loss) on debt retirement             (271)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_MandatorilyRedeemablePreferredStockMember
                           
Preferred stock value included in other non-current liabilities             20,763us-gaap_OtherLiabilitiesNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_MandatorilyRedeemablePreferredStockMember
                           
Repurchase of preferred stock, value             21,034us-gaap_PreferredStockRedemptionAmount
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_AffiliatedEntityMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_MandatorilyRedeemablePreferredStockMember
                           
Senior secured credit facility                                          
Indebtedness and credit agreement                                          
Long-term debt       3,350,367us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredCreditFacilityMember
3,446,457us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredCreditFacilityMember
    3,350,367us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredCreditFacilityMember
                         
Senior secured revolving credit facility due February 2018                                          
Indebtedness and credit agreement                                          
Long-term debt         400,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueFebruary2018Member
                               
Senior secured revolving credit facility due January 2020                                          
Indebtedness and credit agreement                                          
Long-term debt       1,725,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
      1,725,000us-gaap_LongTermDebt
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= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Credit facility                                          
Maximum borrowing capacity                             3,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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1,795,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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Outstanding borrowings       1,725,000us-gaap_LineOfCredit
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      1,725,000us-gaap_LineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Letters of credit outstanding       71,084us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
      71,084us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Additional borrowing capacity       1,203,916us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
      1,203,916us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Amount of debt allowed to be outstanding               1,500,000rad_LineOfCreditFacilityThresholdAmountAllowedOutstanding
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Amount of debt allowed to be outstanding related to Pending Acquisition               1,800,000rad_LineOfCreditFacilityThresholdAmountAllowedOutstandingAcquisition
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Threshold amount of debt               750,000rad_LineOfCreditFacilityThresholdAmountOfDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
                         
Number of days relating to debt threshold               90 days                          
Period allowed for extensions on customary terms               90 days                          
Senior secured revolving credit facility due January 2020 | Prior to repayment of 2020 8.00% Notes                                          
Credit facility                                          
Threshold availability on revolving credit facility to trigger fixed charge coverage requirements               175,000rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirements
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Senior secured revolving credit facility due January 2020 | On and after repayment of 2020 8.00% Notes                                          
Credit facility                                          
Threshold availability on revolving credit facility to trigger fixed charge coverage requirements               200,000rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirements
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Senior secured revolving credit facility due January 2020 | Minimum                                          
Credit facility                                          
Percentage of fee payable on daily unused revolver availability               0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
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Fixed charge coverage ratio               1.00rad_FixedChargeCoverageRatio
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/ us-gaap_RangeAxis
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Senior secured revolving credit facility due January 2020 | Minimum | Prior to repayment of 2020 8.00% Notes                                          
Credit facility                                          
Additional borrowing capacity       300,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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      300,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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/ us-gaap_RangeAxis
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Threshold availability on the third consecutive business day               225,000rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirementsOnThirdConsecutiveBusinessDay
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Senior secured revolving credit facility due January 2020 | Minimum | On and after repayment of 2020 8.00% Notes                                          
Credit facility                                          
Additional borrowing capacity       365,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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      365,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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/ us-gaap_RangeAxis
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Threshold availability on the third consecutive business day               250,000rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirementsOnThirdConsecutiveBusinessDay
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Senior secured revolving credit facility due January 2020 | Maximum                                          
Credit facility                                          
Percentage of fee payable on daily unused revolver availability               0.375%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
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/ us-gaap_RangeAxis
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Senior secured revolving credit facility due January 2020 | Maximum | Prior to repayment of 2020 8.00% Notes                                          
Credit facility                                          
Threshold availability on the third consecutive business day               225,000rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirementsOnThirdConsecutiveBusinessDay
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Senior secured revolving credit facility due January 2020 | Maximum | On and after repayment of 2020 8.00% Notes                                          
Credit facility                                          
Threshold availability on the third consecutive business day               250,000rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirementsOnThirdConsecutiveBusinessDay
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Senior secured revolving credit facility due January 2020 | LIBOR | Minimum                                          
Credit facility                                          
Percentage points added to the reference rate               1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
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Senior secured revolving credit facility due January 2020 | LIBOR | Maximum                                          
Credit facility                                          
Percentage points added to the reference rate               2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
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Senior secured revolving credit facility due January 2020 | Forecast                                          
Credit facility                                          
Maximum borrowing capacity                             3,700,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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Tranche 6 Term Loan due February 2020                                          
Indebtedness and credit agreement                                          
Long-term debt         1,152,293us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
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Tranche 7 Term Loan due February 2020                                          
Credit facility                                          
Amount of debt repurchased                             1,143,650us-gaap_DebtInstrumentRepurchaseAmount
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8.00% senior secured notes (senior lien) due August 2020                                          
Indebtedness and credit agreement                                          
Long-term debt       650,000us-gaap_LongTermDebt
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= rad_SeniorSecuredNotes8PercentSeniorLienDueAugust2020Member
650,000us-gaap_LongTermDebt
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    650,000us-gaap_LongTermDebt
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Debt instrument, stated interest rate (as a percent)       8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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    8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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          8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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  8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
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7.5% senior secured notes (second lien) due March 2017                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)           7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
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    7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
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        7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
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      7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
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Credit facility                                          
Amount of debt repurchased                                   419,237us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_LongtermDebtTypeAxis
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Repayment of senior secured notes, including call premium and interest                 85,154us-gaap_ProceedsFromRepaymentsOfSecuredDebt
/ us-gaap_LongtermDebtTypeAxis
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Tranche 1 Term Loan (second lien) due August 2020                                          
Indebtedness and credit agreement                                          
Long-term debt       470,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredCreditFacilityTranche1TermLoanDueAugust2020Member
470,000us-gaap_LongTermDebt
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    470,000us-gaap_LongTermDebt
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Tranche 1 Term Loan (second lien) due August 2020 | LIBOR                                          
Credit facility                                          
Percentage points added to the reference rate       4.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
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LIBOR floor (as a percent)       1.00%rad_DebtInstrumentVariableRateBasisFloor
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/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                                 
Tranche 1 Term Loan (second lien) due August 2020 | Citibank's base rate                                          
Credit facility                                          
Percentage points added to the reference rate       3.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredCreditFacilityTranche1TermLoanDueAugust2020Member
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
                                 
Tranche 2 Term Loan (second lien) due June 2021                                          
Indebtedness and credit agreement                                          
Long-term debt       500,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
500,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
    500,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
                         
Principal amount of debt                                     500,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
   
Tranche 2 Term Loan (second lien) due June 2021 | LIBOR                                          
Credit facility                                          
Percentage points added to the reference rate       3.875%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                                 
LIBOR floor (as a percent)       1.00%rad_DebtInstrumentVariableRateBasisFloor
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                                 
Tranche 2 Term Loan (second lien) due June 2021 | Citibank's base rate                                          
Credit facility                                          
Percentage points added to the reference rate       2.875%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= rad_SecondPrioritySecuredTranche2TermLoanDue2021Member
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
                                 
10.25% senior secured notes (second lien) due October 2019                                          
Indebtedness and credit agreement                                          
Long-term debt         268,840us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
                               
Debt instrument, stated interest rate (as a percent) 10.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
      10.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
        10.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
      10.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
    10.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
       
Principal amount of debt         270,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
                               
Unamortized discount         1,160us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
                               
Credit facility                                          
Early redemption of debt                   270,000us-gaap_EarlyRepaymentOfSeniorDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
                     
Redemption price                   105.125%us-gaap_DebtInstrumentRedemptionPricePercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
                     
Gain (loss) on debt retirement                   (18,512)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.25PercentSecondLienDueOctober2019Member
                     
Other secured                                          
Indebtedness and credit agreement                                          
Long-term debt       5,367us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_OtherSecuredDebtMember
5,324us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_OtherSecuredDebtMember
    5,367us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_OtherSecuredDebtMember
                         
9.75% senior secured notes (senior lien) due June 2016                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                     9.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes9.75PercentSeniorLienDueJune2016Member
                   
Credit facility                                          
Amount of debt repurchased                     257,261us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes9.75PercentSeniorLienDueJune2016Member
                   
Repayment of senior secured notes, including call premium and interest                     171,432us-gaap_ProceedsFromRepaymentsOfSecuredDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes9.75PercentSeniorLienDueJune2016Member
                   
Face amount of debt repurchased                     410,000us-gaap_DebtInstrumentRepurchasedFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes9.75PercentSeniorLienDueJune2016Member
                   
7.5% senior secured notes (second lien) due March 2017, 6.75% senior notes due June 2021 and 9.5% senior notes due June 2017                                          
Credit facility                                          
Gain (loss) on debt retirement                       (62,172)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes7.5PercentSecondLienDue2017SeniorNotes6.75PercentDue2021MemberAndSeniorNotes9.5PercentDue2017Member
                 
9.75% senior secured notes due June 2016, 10.375% senior secured notes due July 2016, 6.875% senior debentures due August 2013 and 9.25% senior notes due June 2013                                          
Credit facility                                          
Gain (loss) on debt retirement                     (122,660)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes9.75PercentSeniorLienDueJune2016SeniorSecuredNotes10.375PercentSecondLienDueJuly2016SeniorNotes9.25PercentDueJune2013AndSeniorDebentures6.875PercentDueAugust2013Member
                   
10.375% senior secured notes (second lien) due July 2016                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                     10.375%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.375PercentSecondLienDueJuly2016Member
                   
Credit facility                                          
Amount of debt repurchased                     401,999us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.375PercentSecondLienDueJuly2016Member
                   
Repayment of senior secured notes, including call premium and interest                     72,901us-gaap_ProceedsFromRepaymentsOfSecuredDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.375PercentSecondLienDueJuly2016Member
                   
Face amount of debt repurchased                     470,000us-gaap_DebtInstrumentRepurchasedFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorSecuredNotes10.375PercentSecondLienDueJuly2016Member
                   
Guaranteed Unsecured Debt                                          
Indebtedness and credit agreement                                          
Long-term debt       1,715,415us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_GuaranteedUnsecuredDebtMember
1,716,087us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_GuaranteedUnsecuredDebtMember
    1,715,415us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_GuaranteedUnsecuredDebtMember
                         
9.5% senior notes due June 2017                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)     9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
          9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
    9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
  9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
    9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
       
Credit facility                                          
Amount of debt repurchased                 739,642us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
                       
Repayment of senior notes, including call premium and interest                       73,440us-gaap_ProceedsFromRepaymentsOfNotesPayable
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
                 
Face amount of debt repurchased                                 810,000us-gaap_DebtInstrumentRepurchasedFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.5PercentDueJune2017Member
       
6.75% senior notes due June 2021                                          
Indebtedness and credit agreement                                          
Long-term debt       810,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
810,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
    810,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
                810,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
       
Debt instrument, stated interest rate (as a percent)       6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
    6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
                6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.75PercentDue2021Member
       
9.25% senior notes due March 2020                                          
Indebtedness and credit agreement                                          
Long-term debt       905,415us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
906,087us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
    905,415us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
                         
Debt instrument, stated interest rate (as a percent)       9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
    9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
                9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
       
Principal amount of debt       902,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
902,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
    902,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
                         
Unamortized premium       3,415us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
4,087us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
    3,415us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueMarch2020Member
                         
8.625% senior notes due March, 2015                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                           8.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes8.625PercentDueMarch2015Member
             
9.375% senior notes due December 2015                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                         9.375%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.375PercentDueDecember2015Member
9.375%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.375PercentDueDecember2015Member
             
Credit facility                                          
Amount of debt repurchased                           296,269us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.375PercentDueDecember2015Member
             
Gain (loss) on debt retirement                           (17,842)us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.375PercentDueDecember2015Member
             
Repayment of senior notes, including call premium and interest                         108,731us-gaap_ProceedsFromRepaymentsOfNotesPayable
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.375PercentDueDecember2015Member
               
Unguaranteed Unsecured Debt                                          
Indebtedness and credit agreement                                          
Long-term debt       487,168us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_UnsecuredUnguaranteedDebtMember
487,188us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_UnsecuredUnguaranteedDebtMember
    487,168us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_UnsecuredUnguaranteedDebtMember
                         
8.5% convertible notes due May 2015                                          
Indebtedness and credit agreement                                          
Long-term debt       64,168us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_ConvertibleNotes8.5PercentDueMay2015Member
64,188us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_ConvertibleNotes8.5PercentDueMay2015Member
    64,168us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_ConvertibleNotes8.5PercentDueMay2015Member
                         
Debt instrument, stated interest rate (as a percent)       8.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_ConvertibleNotes8.5PercentDueMay2015Member
8.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_ConvertibleNotes8.5PercentDueMay2015Member
    8.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_ConvertibleNotes8.5PercentDueMay2015Member
                         
7.7% notes due February 2027                                          
Indebtedness and credit agreement                                          
Long-term debt       295,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_Notes7.7PercentDueFeb2027Member
295,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_Notes7.7PercentDueFeb2027Member
    295,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_Notes7.7PercentDueFeb2027Member
                         
Debt instrument, stated interest rate (as a percent)       7.70%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_Notes7.7PercentDueFeb2027Member
7.70%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_Notes7.7PercentDueFeb2027Member
    7.70%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_Notes7.7PercentDueFeb2027Member
                         
6.875% fixed-rate senior notes due December 2028                                          
Indebtedness and credit agreement                                          
Long-term debt       128,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_FixedRate6.875PercentSeniorNotesDueDecember2028Member
128,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_FixedRate6.875PercentSeniorNotesDueDecember2028Member
    128,000us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= rad_FixedRate6.875PercentSeniorNotesDueDecember2028Member
                         
Debt instrument, stated interest rate (as a percent)       6.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_FixedRate6.875PercentSeniorNotesDueDecember2028Member
6.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_FixedRate6.875PercentSeniorNotesDueDecember2028Member
    6.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_FixedRate6.875PercentSeniorNotesDueDecember2028Member
                         
6.875% senior debentures due August 2013                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                     6.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorDebentures6.875PercentDueAugust2013Member
                   
Credit facility                                          
Amount of debt repurchased                     119,119us-gaap_DebtInstrumentRepurchaseAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorDebentures6.875PercentDueAugust2013Member
                   
Face amount of debt repurchased                     180,277us-gaap_DebtInstrumentRepurchasedFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorDebentures6.875PercentDueAugust2013Member
                   
Notes redeemed and discharged                     63,416us-gaap_ExtinguishmentOfDebtAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorDebentures6.875PercentDueAugust2013Member
                   
9.25% senior notes due June 2013                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                     9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
    9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
          9.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
 
Principal amount of debt                           421,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
          481,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
 
Credit facility                                          
Repayment of senior notes, including call premium and interest                     6,147us-gaap_ProceedsFromRepaymentsOfNotesPayable
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
                   
Notes redeemed and discharged                     6,015us-gaap_ExtinguishmentOfDebtAmount
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes9.25PercentDueJune2013Member
                   
6.125% senior notes due 2023 | T P G EnvisionRx | Subsequent Event                                          
Indebtedness and credit agreement                                          
Debt instrument, stated interest rate (as a percent)                                         6.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_BusinessAcquisitionAxis
= rad_TPGEnvisionrxMember
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.125Percent2023DueMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Principal amount of debt                                         $ 1,800,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_BusinessAcquisitionAxis
= rad_TPGEnvisionrxMember
/ us-gaap_LongtermDebtTypeAxis
= rad_SeniorNotes6.125Percent2023DueMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember