XML 73 R55.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Long-term Debt - Additional Information (Detail) - USD ($) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Nov. 30, 2017 | Apr. 13, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Debt Instrument [Line Items] |  |  |  |
Assets relating to master loan agreements, Gross |  |  | $ 63,400,000 | $ 64,200,000
Capital leased assets, net book value |  |  | $ 13,000,000 | 16,400,000
Master Loan Agreements [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Payment Period, typical |  |  | 60 months |
Assets relating to master loan agreements, Gross |  |  | $ 74,500,000 | 48,700,000
Capital leased assets, net book value |  |  | 51,400,000 | $ 38,000,000
US Bank Master Loan Agreement [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount | $ 100,000,000 |  |  |
Term loan facility maturity period | 60 months |  |  |
Loan amount available under agreement |  |  | 100,000,000 |
Term Loan Agreement [Member] | Eurodollar [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 2.50% |  |
Term Loan Agreement [Member] | Base Rate [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 1.50% |  |
Term Loan Agreement [Member] | Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount |  | $ 300,000,000 |  |
Term loan facility maturity period |  | 7 years |  |
Quarterly principal payment of term loan |  |  | $ 800,000 |
Credit facility, amortization description |  |  | The Term Loan amortizes in quarterly principal payments of approximately $0.8 million, 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] | Leverage Ratio Range One [Member] |  |  |  |
Debt Instrument [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] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Percentage of mandatory pre-payments on excess cash flow |  |  | 0.00% |
ABL Credit Agreement [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Fixed coverage ratio, covenants requirements |  | 1.00% |  |
ABL Credit Agreement [Member] | Eurodollar Rate Loan One [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 1.25% |  |
ABL Credit Agreement [Member] | Eurodollar Rate Loan Two [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 1.50% |  |
ABL Credit Agreement [Member] | Eurodollar Rate Loan Three [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 1.75% |  |
ABL Credit Agreement [Member] | Base Rate Loan One [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 0.25% |  |
ABL Credit Agreement [Member] | Base Rate Loan Two [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 0.50% |  |
ABL Credit Agreement [Member] | Base Rate Loan Three [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin interest rate percentage |  | 0.75% |  |
ABL Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit maximum borrowing capacity |  | $ 100,000,000 |  |
Maturity date |  |  | Apr. 13, 2022 |
ABL Credit Agreement [Member] | Letter of Credit [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of credit maximum borrowing capacity |  | $ 50,000,000 |  |
Amended Term Loan Agreement [Member] | Term Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount | $ 299,300,000 |  |  |

X
- Definition Debt Instrument Fixed Charge Coverage Ratio Covenant + References No definition available. + Details
Name: | ibp_DebtInstrumentFixedChargeCoverageRatioCovenant
Namespace Prefix: | ibp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Excess cash flow limit for mandatory pre-payments of debt. + References No definition available. + Details
Name: | ibp_ExcessCashFlowLimitForMandatoryPrepaymentsOfDebt
Namespace Prefix: | ibp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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

X
- 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

X
- 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

X
- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84164758&loc=d3e45014-112735 + Details
Name: | us-gaap_CapitalLeasedAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesBalanceSheetAssetsByMajorClassNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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

X
- 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

X
- 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=75038535&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

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Definition Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date. + 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(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

X
- Definition Amount of the required periodic payments of both interest and principal. + 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
Name: | us-gaap_LineOfCreditFacilityPeriodicPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period covered by the long-term purchase commitment, 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_LongtermPurchaseCommitmentPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CreditFacilityAxis=ibp_MasterLoanAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=ibp_USBankMasterLoanAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ibp_TermLoanAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=ibp_TermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ExtinguishmentOfDebtAxis=ibp_LeverageRatioRangeOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ExtinguishmentOfDebtAxis=ibp_LeverageRatioRangeTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ibp_AblCreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=ibp_EurodollarRateLoanOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=ibp_EurodollarRateLoanTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=ibp_EurodollarRateLoanThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=ibp_BaseRateLoanOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=ibp_BaseRateLoanTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=ibp_BaseRateLoanThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ibp_AmendedTermLoanAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |