XML 69 R55.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Property, Plant and Equipment [Abstract] |  |
Property and equipment fully depreciated | $ 59.9 | $ 49.7

X
- Definition Property And Equipment Fully Depreciated Assets + References No definition available. + Details
Name: | ibp_PropertyAndEquipmentFullyDepreciatedAssets
Namespace Prefix: | ibp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration