XML 100 R89.htm IDEA: XBRL DOCUMENT
v3.26.1

Commitments and Contingencies - Narrative (Details) lb in Millions, $ in Millions | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2026 USD ($) supplier lb | Dec. 31, 2025 lb | Jul. 01, 2025 lb | Mar. 31, 2023 lb
2023 Supply Agreement |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |
Number of suppliers | supplier | 1 |  |  |
Purchase obligation year one (in pounds) |  |  |  | 12.0
Purchase obligation year two (in pounds) |  |  |  | 14.4
Purchase obligation year three (in pounds) |  | 12.3 |  | 17.3
Unrecorded unconditional purchase obligation, pounds purchased | 11.4 |  |  |
2025 Supply Agreement |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |
Purchase obligation year one (in pounds) | 8.0 |  |  |
Purchase obligation year two (in pounds) | 8.0 |  |  |
Purchase obligation year three (in pounds) | 8.0 |  |  |
Unrecorded unconditional purchase obligation, pounds purchased | 4.7 |  |  |
Purchase commitment, remaining minimum amount committed | $ | $ 10.8 |  |  |
July 2025 Supply Agreement |  |  |  |
Commitments And Contingencies Disclosure [Line Items] |  |  |  |
Number of suppliers | supplier | 1 |  |  |
Purchase obligation year two (in pounds) |  |  | 89.1 |
Unrecorded unconditional purchase obligation, pounds purchased | 46.1 |  |  |

X
- Definition Commitments and contingencies disclosure. + References No definition available. + Details
Name: | ibp_CommitmentsAndContingenciesDisclosureLineItems
Namespace Prefix: | ibp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchase Obligation, Number Of Suppliers + References No definition available. + Details
Name: | ibp_PurchaseObligationNumberOfSuppliers
Namespace Prefix: | ibp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchase Obligation, Pounds To Be Purchased, Year One + References No definition available. + Details
Name: | ibp_PurchaseObligationPoundsToBePurchasedYearOne
Namespace Prefix: | ibp_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | instant

X
- Definition Purchase Obligation, Pounds To Be Purchased, Year Three + References No definition available. + Details
Name: | ibp_PurchaseObligationPoundsToBePurchasedYearThree
Namespace Prefix: | ibp_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | instant

X
- Definition Purchase Obligation, Pounds To Be Purchased, Year Two + References No definition available. + Details
Name: | ibp_PurchaseObligationPoundsToBePurchasedYearTwo
Namespace Prefix: | ibp_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | instant

X
- Definition Unrecorded Unconditional Purchase Obligation, Pounds Purchased + References No definition available. + Details
Name: | ibp_UnrecordedUnconditionalPurchaseObligationPoundsPurchased
Namespace Prefix: | ibp_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | instant

X
- Definition Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 + Details
Name: | us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_SupplyCommitmentAxis=ibp_A2023SupplyAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SupplyCommitmentAxis=ibp_A2025SupplyAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SupplyCommitmentAxis=ibp_July2025SupplyAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |