Common Stock, Discount Rate

No definition available.

Name:	asna_CommonStockDiscountRate
Namespace Prefix:	asna_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Defined Benefit Plan Termination Date

+ References

No definition available.

+ Details

Name:	asna_DefinedBenefitPlanTerminationDate
Namespace Prefix:	asna_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Contribution Plan Contribution Rates as a Percentage of Employees Earnings

+ References

No definition available.

+ Details

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

- Details

Name:	asna_DefinedContributionPlanDisclosureLineItems
Namespace Prefix:	asna_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Contribution Plan, Liabilities

+ References

No definition available.

+ Details

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

- Definition

Defined Contribution Plan Vesting Period

+ References

No definition available.

+ Details

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

- Definition

Employer 401(k) Matching Contribution to Employee

+ References

No definition available.

+ Details

Name:	asna_Employer401kMatchingContributionToEmployee
Namespace Prefix:	asna_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Executive Retirement Plan, Benefit Obligation Administrative Expenses.

+ References

No definition available.

+ Details

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

- Definition

Executive Retirement Plan, Employer Match Expense.

+ References

No definition available.

+ Details

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

- Definition

Executive Retirement Plan, Employers Contribution of Vesting Period.

+ References

No definition available.

+ Details

Name:	asna_ExecutiveRetirementPlanEmployersContributionOfVestingPeriod
Namespace Prefix:	asna_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Executive Retirement Plan, Liabilities Noncurrent.

+ References

No definition available.

+ Details

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

- Definition

The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph g

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

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

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

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

Employee Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
Retirement Savings Plan (401 (k))
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution of the first 5% employee contribution	50.00%
Employer vesting period requirement	3 years
Expenses related to contributions and administration of plans	$ 3.1	$ 2.7	$ 2.3
Retirement Savings Plan (401 (k)) \| Charming Shoppes Acquisition
Defined Contribution Plan Disclosure [Line Items]
Liability relating to Charming Shoppes defined contribution plan	0.3
Defined contribution plan, termination month and year	2013-07
Executive Retirement Plan
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution of the first 5% employee contribution	100.00%
Vesting period requirement for employer contribution	5
Employer matching contribution	2.2	2.1	1.0
Obligations under the ERP Plan, market appreciation and depreciation expense	1.4	5.4	2.3
Obligations under the ERP Plan	49.6	42.3
Executive Retirement Plan \| Charming Shoppes Acquisition
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, termination month and year	2013-07
Liability relating to Charming Shoppes defined contribution plan	$ 9.2
Executive Retirement Plan \| Maximum
Defined Contribution Plan Disclosure [Line Items]
Employee contribution of base salary and bonus	95.00%
Employee Stock Purchase Plan
Defined Contribution Plan Disclosure [Line Items]
Employee share purchase during each quarterly offering period, discount	10.00%