Maximum amount of senior notes excluded from calculation of springing maturity date.

No definition available.

Name:	bont_DebtInstrumentAmountOfSeniorNotesExcludedFromCalculationOfSpringingMaturityDateMaximum
Namespace Prefix:	bont_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Financial covenants representing the dividend that can be paid in any year.

+ References

No definition available.

+ Details

Name:	bont_DebtInstrumentCovenantAnnualDividendRestrictionAmount
Namespace Prefix:	bont_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Financial covenants representing the threshold amount for calculating minimum excess availability.

+ References

No definition available.

+ Details

Name:	bont_DebtInstrumentCovenantMinimumExcessAvailabilityThresholdAmount
Namespace Prefix:	bont_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Threshold percentage used in the calculation of a minimum excess availability financial covenant contained in a credit facility agreement.

+ References

No definition available.

+ Details

Name:	bont_DebtInstrumentCovenantMinimumExcessAvailabilityThresholdPercentage
Namespace Prefix:	bont_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Financial covenants representing the dividend that can be paid during the term of the agreement.

+ References

No definition available.

+ Details

Name:	bont_DebtInstrumentCovenantTotalDividendRestrictionAmountDuringTermOfAgreement
Namespace Prefix:	bont_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The potential maximum borrowing capacity under the credit facility that the entity may request upon the satisfaction of certain conditions.

+ References

No definition available.

+ Details

Name:	bont_LineOfCreditFacilityPotentialMaximumBorrowingCapacity
Namespace Prefix:	bont_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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

- 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://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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

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

+ References

+ Details

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

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

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 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.8)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

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

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
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Period Type:

LONG-TERM DEBT (Details 2) (USD $) In Thousands, unless otherwise specified	0 Months Ended		12 Months Ended
	Dec. 12, 2013	Oct. 25, 2012	Jan. 31, 2015	Feb. 01, 2014
Debt Instrument [Line Items]
Long-term debt			$ 857,751us-gaap_LongTermDebt	$ 811,735us-gaap_LongTermDebt
Senior secured credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity			675,000
Unamortized deferred financing fees recognized in loss on exchange/extinguishment of debt	136	202
Maximum amount of second lien senior secured notes excluded from calculation of springing maturity date	60,000
Maximum borrowing capacity upon requests			900,000
Calculation of minimum excess availability, percentage			10.00%
Calculation of minimum excess availability, threshold amount			50,000
Long-term debt			238,918	184,879
Remaining borrowing capacity			382,855
Senior secured credit facility \| Maximum
Debt Instrument [Line Items]
Annual dividend restriction amount			10,000
Total dividend restriction amount during the term of the agreement			30,000
Senior secured credit facility \| Federal Funds Rate
Debt Instrument [Line Items]
Interest rate margin (as a percent)			0.50%
Senior secured credit facility \| One month LIBOR
Debt Instrument [Line Items]
Interest rate margin (as a percent)			1.00%
Senior secured credit facility \| Letters of credit
Debt Instrument [Line Items]
Maximum borrowing capacity			150,000
Letter-of-credit commitments, amount			4,564
Senior secured credit facility \| Swing line loans
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 75,000