XML 12 R39.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements - Changes in Fair Value of Recurring Fair Value Measurements Using Significant Unobservable Inputs (Level 3) (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2014
Fair Value Disclosures [Abstract] |
Beginning balance | $ 81,500
Adjustments to fair value measurement impacting the Statement of Stockholders' Deficit and Redeemable Instruments | 8,357
Adjustments to fair value measurement impacting the Statement of Operations | (490)
Termination of Redemption Feature on common stock and put option | (89,367)
Ending balance |

X
- Definition Liabilities And Equity Fair Value Disclosure + References No definition available. + Details
Name: | ibp_LiabilitiesAndEquityFairValueDisclosure
Namespace Prefix: | ibp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Termination Of Redemption Feature On Common Stock And Put Option + References No definition available. + Details
Name: | ibp_TerminationOfRedemptionFeatureOnCommonStockAndPutOption
Namespace Prefix: | ibp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of realized and unrealized gain (loss) included in earnings, which have arisen from the use of significant unobservable inputs (level 3) to measure fair value of assets, liabilities, and financial instruments classified in shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasuredOnRecurringBasisGainLossIncludedInEarnings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of transfers of financial instrument classified in shareholders' equity into (out of) level 3 of the fair value hierarchy. + References No definition available. + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisInstrumentsClassifiedInShareholdersEquityTransfersNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration