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Revolving Credit Facilities (Detail Textuals) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 9 Months Ended |  | 1 Months Ended |  |  |  |
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Mar. 29, 2013 U.S. Revolving credit facility Wells Fargo Bank | Sep. 28, 2013 U.S. Revolving credit facility Wells Fargo Bank | Dec. 29, 2012 U.S. Revolving credit facility Wells Fargo Bank | Jun. 28, 2013 U.S. Revolving credit facility PNC Bank, National Association ("PNC") | Sep. 28, 2013 U.S. Letters of credit Wells Fargo Bank | Dec. 29, 2012 U.S. Letters of credit Wells Fargo Bank | Sep. 28, 2013 BlueLinx Building Products Canada Ltd. ("BlueLinx Canada") Canada Revolving credit facility CIBC Asset-Based Lending Inc. | Dec. 29, 2012 BlueLinx Building Products Canada Ltd. ("BlueLinx Canada") Canada Revolving credit facility CIBC Asset-Based Lending Inc.
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |
Revolving Credit Facility Excess Availability Threshold Amount |  | $ 447.5 |  |  |  |  |  |
Date of the final maturity of revolving credit facility |  | Apr. 15, 2016 |  |  |  |  |  |
Additional uncommitted accordion U.S. credit facility |  | 75 |  |  |  |  |  |
Additional loan commitment |  |  |  | 25.0 |  |  |  |
Revolving credit facility maximum borrowing capacity |  | 522.5 |  |  |  |  |  |
Debt fees | 2.8 |  |  | 0.1 |  |  |  |
Net proceeds from rights offering |  | 38.6 |  |  |  |  |  |
Shares issued to stockholders on rights offering |  | 22.9 |  |  |  |  |  |
Borrowing balance of credit facility |  | 234.8 | 169.5 |  | 4.5 | 4.5 | 4.6 | 1.9
Revolving credit facility excess availability |  | 91.3 | 86.0 |  |  |  | 1.2 | 2.0
Interest rate on revolving credit facility |  | 3.80% | 4.10% |  |  |  | 4.00% | 4.00%
Collateralized letter of credit securing certain insurance obligations |  |  |  |  | 1.5 |  |  |
Percentage of revolving credit facility excess availability threshold |  | 12.50% |  |  |  |  |  |
Revolving credit facility excess availability threshold |  | 31.8 |  |  |  |  |  |
Minimum amount of excess availability required to avoid lender dominion of our accounts as a percentage of the revolving credit facility balance |  | 15.00% |  |  |  |  |  |
Minimum amount of excess availability required to avoid lender dominion of our accounts |  | 37.1 |  |  |  |  |  |
Lowest level of fiscal month-end availability revolving credit facility |  | 79.1 |  |  |  |  |  |
Revolving credit facility fixed charge coverage ratio requirement |  | 1.1 to 1.0 |  |  |  |  |  |
Covenant description |  | As of September 28, 2013, our U.S. revolving credit facility, as amended, contains customary negative covenants and restrictions for asset based loans, including a requirement that we maintain a fixed charge coverage ratio of 1.1 to 1.0 in the event our excess availability falls below the greater of $31.8 million or the amount equal to 12.5% of the lesser of the borrowing base or $447.5 million (the "Excess Availability Threshold"). |  |  |  |  |  |
Canadian minimum adjusted tangible net worth covenant |  |  |  |  |  |  | $ 3.9 |
Canadian capital expenditures maximum percentage limit covenant |  |  |  |  |  |  | 120.00% |

X
- Definition Represents additional loan commitment from the lender. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

X
- Definition Collateralized letter of credit securing certain insurance obligations. + References No definition available. + Details
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- Definition Line of credit accordion U.S. credit facility. + References No definition available. + Details
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- Definition Canadian capital expenditure maximum percentage limit required by the lender. + References No definition available. + Details
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- Definition Represents minimum amount of excess availability required to avoid lender dominion of our accounts. + References No definition available. + Details
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- Definition Represents minimum amount of excess availability required to avoid lender dominion of our accounts as a percentage of the revolving credit facility balance. + References No definition available. + Details
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- Definition Represents minimum amount of revolving credit facility excess availability threshold. + References No definition available. + Details
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- Definition Minimum level of fiscal month end availability in the last three years. + References No definition available. + Details
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- Definition The lowest amount of net worth (total assets minus total liabilities) required by lender. + References No definition available. + Details
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- Definition Percentage of revolving credit facility excess availability threshold. + References No definition available. + Details
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- Definition Amount of revolving credit facility excess availability threshold. + References No definition available. + Details
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- Definition Revolving credit facility fixed charge coverage ratio requirement. + References No definition available. + Details
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- Definition Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees). + References No definition available. + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Description of the conditions for borrowing under the credit facility including the nature of any restrictions. + 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
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + 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
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- Definition The effective interest rate at the end of the reporting period. + 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
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- Details
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- 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
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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
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