Debt Instrument Fixed Charge Coverage Ratio Covenant

No definition available.

Name:	ibp_DebtInstrumentFixedChargeCoverageRatioCovenant
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Balance Type:	na
Period Type:	duration

- Definition

Default interest rate.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Excess cash flow limit for mandatory pre-payments of debt.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line Of Credit Facility Additional Interest Rate

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of consecutive days for changing control of company.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of closing fees paid on aggregate amount.

+ References

No definition available.

+ Details

Name:	ibp_PercentageOfClosingFeesPaidOnAggregateAmount
Namespace Prefix:	ibp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of mandatory pre-payments on debt issuance.

+ References

No definition available.

+ Details

Name:	ibp_PercentageOfMandatoryPrepaymentsOnDebtIssuance
Namespace Prefix:	ibp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of mandatory pre-payments on excess cash flow.

+ References

No definition available.

+ Details

Name:	ibp_PercentageOfMandatoryPrepaymentsOnExcessCashFlow
Namespace Prefix:	ibp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of mandatory pre-payments on sale or disposition of assets.

+ References

No definition available.

+ Details

Name:	ibp_PercentageOfMandatoryPrepaymentsOnSaleOrDispositionOfAssets
Namespace Prefix:	ibp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

+ 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(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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

+ Details

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

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

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

- Definition

Amount of the required periodic payments of both interest and principal.

+ References

+ Details

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

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

Name:	us-gaap_BusinessAcquisitionAxis=ibp_LegacyGlassLlcMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=ibp_TermLoanAgreementMember
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- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
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- Details

Name:	us-gaap_CreditFacilityAxis=ibp_TermLoanMember
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- Details

Name:	us-gaap_ExtinguishmentOfDebtAxis=ibp_LeverageRatioRangeOneMember
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Name:	us-gaap_DebtInstrumentAxis=ibp_AblCreditAgreementMember
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Subsequent Events - Additional Information (Detail) - USD ($)			3 Months Ended
	May 01, 2017	Apr. 13, 2017	Mar. 31, 2017
Subsequent Event [Line Items]
Credit facility, covenant terms			Under the Term Loan Agreement, if upon the occurrence and during the continuance of certain events of default, any principal of or interest on any loan under the Term Loan Agreement or any fee or other amount payable by us is not paid when due, whether at stated maturity, upon acceleration or otherwise, such overdue amount will bear interest at a rate per annum equal to (i) in the case of overdue principal of any loan under the Term Loan Agreement, 2.00% per annum plus the rate otherwise applicable to such loan, or (ii) in the case of any other amount, 2.00% per annum plus interest rate for base rate loans as described above.
Subsequent Event [Member]
Subsequent Event [Line Items]
Percentage of closing fee		1.25%
Contingent interest rate increase		2.00%
Subsequent Event [Member] \| Legacy Glass, L.L.C [Member]
Subsequent Event [Line Items]
Cash consideration paid for acquisition	$ 2,200,000
Term Loan Agreement [Member] \| Eurodollar [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		3.00%
Term Loan Agreement [Member] \| Base Rate [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		2.00%
Term Loan Agreement [Member] \| Term Loan [Member]
Subsequent Event [Line Items]
Quarterly principal payment of term loan			$ 750,000
Credit facility, amortization description			The Term Loan amortizes in quarterly principal payments of $750,000 starting on September 30, 2017, with any remaining unpaid balances due on April 15, 2024, which is the maturity date. Loans incurred under the ABL Revolver will have a final maturity of April 13, 2022.
Percentage of mandatory pre-payments on debt issuance			100.00%
Percentage of mandatory pre-payments on sale or disposition of assets			100.00%
Percentage of mandatory pre-payments on excess cash flow			50.00%
Excess cash flow limit for mandatory pre-payments of debt			$ 5,000,000
Term Loan Agreement [Member] \| Term Loan [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt instrument, face amount		$ 300,000,000
Term loan facility maturity period		7 years
Term Loan Agreement [Member] \| Term Loan [Member] \| Leverage Ratio Range One [Member]
Subsequent Event [Line Items]
Percentage of mandatory pre-payments on excess cash flow			25.00%
Term Loan Agreement [Member] \| Term Loan [Member] \| Leverage Ratio Range Two [Member]
Subsequent Event [Line Items]
Percentage of mandatory pre-payments on excess cash flow			0.00%
ABL Credit Agreement [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Fixed coverage ratio, covenants requirements		1.00%
Default rate		2.00%
ABL Credit Agreement [Member] \| Eurodollar Rate Loan One [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		1.25%
ABL Credit Agreement [Member] \| Eurodollar Rate Loan Two [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		1.50%
ABL Credit Agreement [Member] \| Eurodollar Rate Loan Three [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		1.75%
ABL Credit Agreement [Member] \| Base Rate Loan One [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		0.25%
ABL Credit Agreement [Member] \| Base Rate Loan Two [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		0.50%
ABL Credit Agreement [Member] \| Base Rate Loan Three [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Margin interest rate percentage		0.75%
ABL Credit Agreement [Member] \| Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of credit maximum borrowing capacity			$ 100,000,000
Maturity date			Apr. 13, 2022
ABL Credit Agreement [Member] \| Letter of Credit [Member]
Subsequent Event [Line Items]
Line of credit maximum borrowing capacity			$ 50,000,000
Senior Secured Credit Facilities [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Line of credit maximum borrowing capacity		$ 50,000,000
Number of consecutive days for changing control of company		60 days
Senior Secured Credit Facilities [Member] \| Term Loan [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt instrument, face amount		$ 300,000,000
Senior Secured Credit Facilities [Member] \| Letter of Credit [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Line of credit maximum borrowing capacity		$ 50,000,000