v3.20.4

Debt (Amended Revolving Credit Agreement) (Details) - USD ($)				3 Months Ended
	Mar. 16, 2020	Feb. 28, 2018	Aug. 21, 2015	Oct. 31, 2020	Sep. 20, 2019
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt maximum borrowing capacity		$ 500,000,000
Optional additional increase in credit facility		$ 200,000,000
Line of credit facility, maturity, extension, years from closing date		5 years
Line of credit facility, maturity, extension, days prior to term loan maturity		91 days
Line of credit available, in excess of		$ 100,000,000
Line of credit, in excess of, percentage of credit limit				20.00%
Proceeds from line of credit	$ 230,000,000
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) | Alternative Base Rate Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)		10000.00%
Revolving Credit Facility [Member] | Fed Funds Effective Rate Overnight Index Swap Rate | Alternative Base Rate Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)		5000.00%
Revolving Credit Facility [Member] | Maximum
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage		2500.00%
Revolving Credit Facility [Member] | Maximum | London Interbank Offered Rate (LIBOR) | Eurodollar Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)		15000.00%
Revolving Credit Facility [Member] | Maximum | London Interbank Offered Rate (LIBOR) | Alternative Base Rate Borrowings
Debt Instrument [Line Items]
Debt Instrument, Margin Rate in Addition to Base Rate		5000.00%
Revolving Credit Facility [Member] | Minimum
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage		2000.00%
Revolving Credit Facility [Member] | Minimum | London Interbank Offered Rate (LIBOR) | Eurodollar Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)		12500.00%
Revolving Credit Facility [Member] | Minimum | London Interbank Offered Rate (LIBOR) | Alternative Base Rate Borrowings
Debt Instrument [Line Items]
Debt Instrument, Margin Rate in Addition to Base Rate		2500.00%
Letter of Credit | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt maximum borrowing capacity					$ 200,000,000
Swingline Loans | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt maximum borrowing capacity		$ 30,000,000
Term Loan | Eurodollar Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)			45000.00%
Term Loan | London Interbank Offered Rate (LIBOR) | Alternative Base Rate Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)			10000.00%
Debt Instrument, Margin Rate in Addition to Base Rate			35000.00%
Term Loan | Fed Funds Effective Rate Overnight Index Swap Rate | Alternative Base Rate Borrowings
Debt Instrument [Line Items]
Interest rate spread (basis points)			5000.00%
Term Loan | Maximum
Debt Instrument [Line Items]
Term loan, outstanding principal amount		$ 150,000,000

X

- Definition

Debt Instrument, Margin Rate in Addition to Base Rate

+ References

No definition available.

+ Details

Name:	asna_DebtInstrumentMarginRateinAdditiontoBaseRate
Namespace Prefix:	asna_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

Name:	asna_LineOfCreditFacilityAdditionalBorrowingCapacity
Namespace Prefix:	asna_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	asna_Lineofcreditavailableinexcessof
Namespace Prefix:	asna_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line of credit facility, maturity, extension,days prior to term loan maturity

+ References

No definition available.

+ Details

Name:	asna_Lineofcreditfacilitymaturityextensiondayspriortotermloanmaturity
Namespace Prefix:	asna_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line of credit facility, maturity, extension, years from closing date

+ References

No definition available.

+ Details

Name:	asna_Lineofcreditfacilitymaturityextensionyearsfromclosingdate
Namespace Prefix:	asna_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line of credit, in excess of, percentage of credit limit

+ References

No definition available.

+ Details

Name:	asna_Lineofcreditinexcessofpercentageofcreditlimit
Namespace Prefix:	asna_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Term loan, outstanding principal amount

+ References

No definition available.

+ Details

Name:	asna_Termloanoutstandingprincipalamount
Namespace Prefix:	asna_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

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

+ References

No definition available.

+ Details

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

X

- Definition

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.

+ References

No definition available.

+ Details

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

X

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

+ Details

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

X

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	asna_BorrowingClassificationOptionAxis=asna_AlternativeBaseRateBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	asna_BorrowingClassificationOptionAxis=asna_EurodollarBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=asna_SwinglineLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=asna_TermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: