Fair Value Measurements - Additional Information (Detail)	Apr. 13, 2017 USD ($)
Term Loan Agreement [Member] \| Term Loan [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Debt instrument, face amount	$ 300,000,000
Term loan facility maturity period	7 years
ABL Credit Agreement [Member] \| Revolving Credit Facility [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Line of credit maximum borrowing capacity	$ 100,000,000
ABL Credit Agreement [Member] \| Letter of Credit [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Line of credit maximum borrowing capacity	$ 50,000,000

Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]

No definition available.

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Namespace Prefix:	ibp_
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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

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

- 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

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Data Type:	xbrli:durationItemType
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

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

+ Details

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

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=ibp_AblCreditAgreementMember
Namespace Prefix:
Data Type:	na
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- Details

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Balance Type:
Period Type:

- Details

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