XML 34 R39.htm IDEA: XBRL DOCUMENT
v3.20.1

Segment Reporting - Segment Reporting (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting Information [Line Items] |  |
Net sales | $ 372.3 | $ 388.3
Gross profit/(loss) | 113.9 | 117.8
Operating income/(loss) | 40.9 | 36.2
Operating Segments [Member] | Fuel Specialties [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 147.0 | 156.0
Gross profit/(loss) | 51.2 | 55.7
Operating income/(loss) | 32.1 | 32.9
Operating Segments [Member] | Fuel Specialties [Member] | Refinery and Performance [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 108.6 | 117.3
Operating Segments [Member] | Fuel Specialties [Member] | Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 38.4 | 38.7
Operating Segments [Member] | Performance Chemicals [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 113.1 | 118.1
Gross profit/(loss) | 27.6 | 26.6
Operating income/(loss) | 15.6 | 13.5
Operating Segments [Member] | Performance Chemicals [Member] | Personal Care [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 63.0 | 61.0
Operating Segments [Member] | Performance Chemicals [Member] | Home Care [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 21.6 | 27.0
Operating Segments [Member] | Performance Chemicals [Member] | Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 28.5 | 30.1
Operating Segments [Member] | Oilfield Services [Member] |  |
Segment Reporting Information [Line Items] |  |
Net sales | 112.2 | 114.2
Gross profit/(loss) | 36.2 | 37.7
Operating income/(loss) | 7.2 | 7.8
Operating Segments [Member] | Octane Additives [Member] |  |
Segment Reporting Information [Line Items] |  |
Gross profit/(loss) | (1.1) | (2.2)
Operating income/(loss) | (1.2) | (2.8)
Corporate, Non-Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Corporate costs | $ (12.8) | $ (15.2)

X
- Definition Corporate costs. + References No definition available. + Details
Name: | iosp_CorporateCosts
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iosp_FuelSpecialtiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=iosp_RefineryAndPerformanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=iosp_OtherFuelSpecialtiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iosp_PerformanceChemicalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=iosp_PersonalCareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=iosp_HomeCareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=iosp_OtherPerformanceChemicalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iosp_OilfieldServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=iosp_OctaneAdditivesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |