Name:	mik_DebtInstrumentPercentageOfSecurityInterestInNonvotingStockOfForeignSubsidiaries
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of security interest granted in the voting stock of a foreign subsidiary or foreign subsidiary holding company as a condition of indebtedness.

No definition available.

Name:	mik_DebtInstrumentPercentageOfSecurityInterestInVotingStockOfForeignSubsidiaries
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the consolidated fixed charge coverage ratio required to be maintained under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityCovenantConsolidatedFixedChargeCoverageRatio
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the projected period used for testing of certain payment conditions under the financial covenant.

No definition available.

Name:	mik_LineOfCreditFacilityCovenantProjectedPeriodUsedForTestingOfCertainPaymentConditions
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the amount of excess availability as a percentage of loan cap for maintaining specified consolidated fixed charge coverage ratio under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityExcessAvailabilityAsPercentageOfLoanCapForMaintainingSpecifiedConsolidatedFixedChargeCoverageRatio
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the amount of excess availability as a percentage of loan cap for specified period for maintaining specified consolidated fixed charge coverage ratio under the terms of the credit facility..

No definition available.

Name:	mik_LineOfCreditFacilityExcessAvailabilityAsPercentageOfLoanCapForSpecifiedPeriodForMaintainingSpecifiedConsolidatedFixedChargeCoverageRatio
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the excess availability as a percentage of loan cap for repayment of outstanding debt under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityExcessAvailabilityAsPercentageOfLoanCapForSpecifiedPeriodForRepaymentOfDebt
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the amount of excess availability for maintaining specified consolidated fixed charge coverage ratio under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityExcessAvailabilityForMaintainingSpecifiedConsolidatedFixedChargeCoverageRatio
Namespace Prefix:	mik_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the amount of excess availability for repayment of outstanding debt under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityExcessAvailabilityForRepaymentOfDebt
Namespace Prefix:	mik_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the amount of excess availability for specified period for maintaining specified consolidated fixed charge coverage ratio under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityExcessAvailabilityForSpecifiedPeriodForMaintainingSpecifiedConsolidatedFixedChargeCoverageRatio
Namespace Prefix:	mik_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Maximum borrowing capacity under the credit facility once the additional commitments are provided.

No definition available.

Name:	mik_LineOfCreditFacilityMaximumBorrowingCapacityOnceExpanded
Namespace Prefix:	mik_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The additional commitments for maximum borrowing capacity available, which is subject to lender's approval.

No definition available.

Name:	mik_LineOfCreditFacilityOptionalExpansionMaximumBorrowingCapacity
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Percentage of appraised net orderly liquidation value of eligible inventory considered for calculation of borrowing base.

No definition available.

Name:	mik_LineOfCreditFacilityPercentageOfAppraisedNetOrderlyLiquidationValueOfEligibleInventory
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of appraised net orderly liquidation value of eligible inventory and eligible letters of credit considered for calculation of borrowing base.

No definition available.

Name:	mik_LineOfCreditFacilityPercentageOfAppraisedNetOrderlyLiquidationValueOfEligibleInventoryAndEligibleLettersOfCredit
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of eligible credit card receivables and debit card receivables used to determine the borrowing base.

No definition available.

Name:	mik_LineOfCreditFacilityPercentageOfEligibleCreditCardReceivablesAndDebitCardReceivablesToDetermineBorrowingBase
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of eligible trade receivables used to determine the borrowing base.

No definition available.

Name:	mik_LineOfCreditFacilityPercentageOfEligibleTradeReceivablesToDetermineBorrowingBase
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents period of the excess availability as a percentage of loan cap for maintaining specified consolidated fixed charge coverage ratio under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityPeriodOfExcessAvailabilityAsPercentageOfLoanCapForMaintainingSpecifiedConsolidatedFixedChargeCoverageRatio
Namespace Prefix:	mik_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents period of the excess availability as a percentage of loan cap for repayment of outstanding debt under the terms of the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityPeriodOfExcessAvailabilityAsPercentageOfLoanCapForRepaymentOfDebt
Namespace Prefix:	mik_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The initial fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

No definition available.

Name:	mik_LineOfCreditFacilityUnusedCapacityCommitmentFeeInitialPercentage
Namespace Prefix:	mik_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	dei_LegalEntityAxis=mik_MichaelsStoresIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_DebtInstrumentAxis=mik_AssetBasedRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_VariableRateAxis=mik_LondonInterbankOfferedRateLiborWithFloorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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