XML 29 R73.htm IDEA: XBRL DOCUMENT v2.4.0.6

Pension Plans (Details 2) (UK Plan [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fair value of pension assets
Total assets at fair value	$ 718.8	$ 676.0
Cash	49.8	32.8
Total plans assets	768.6	708.8	672.3
Debt securities issued by U.S. government and government agencies [Member]
Fair value of pension assets
Total assets at fair value	1.6	0.9
Debt securities issued by non-U.S. government and government agencies [Member]
Fair value of pension assets
Total assets at fair value	191.3	221.0
Equity Securities Held for Proprietary Investment Purposes [Member]
Fair value of pension assets
Total assets at fair value	134.8	114.1
Corporate debt securities [Member]
Fair value of pension assets
Total assets at fair value	284.6	254.2
Residential mortgage-backed securities [Member]
Fair value of pension assets
Total assets at fair value	0.2	0.2
Other asset-backed securities [Member]
Fair value of pension assets
Total assets at fair value	3.1	2.2
Real estate [Member]
Fair value of pension assets
Total assets at fair value	33.2	26.1
Other assets [Member]
Fair value of pension assets
Total assets at fair value	70.0	57.3
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value of pension assets
Total assets at fair value	648.8	634.2
Cash	49.8	32.8
Total plans assets	698.6	667.0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Debt securities issued by U.S. government and government agencies [Member]
Fair value of pension assets
Total assets at fair value	1.6	0.9
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Debt securities issued by non-U.S. government and government agencies [Member]
Fair value of pension assets
Total assets at fair value	191.3	221.0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities Held for Proprietary Investment Purposes [Member]
Fair value of pension assets
Total assets at fair value	134.8	114.1
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate debt securities [Member]
Fair value of pension assets
Total assets at fair value	284.6	254.2
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Residential mortgage-backed securities [Member]
Fair value of pension assets
Total assets at fair value	0.2	0.2
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other asset-backed securities [Member]
Fair value of pension assets
Total assets at fair value	3.1	2.2
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Real estate [Member]
Fair value of pension assets
Total assets at fair value	33.2	26.1
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other assets [Member]
Fair value of pension assets
Total assets at fair value		15.5
Significant Other Observable Inputs (Level 2) [Member]
Fair value of pension assets
Total assets at fair value	39.0	13.7
Total plans assets	39.0	13.7
Significant Other Observable Inputs (Level 2) [Member] | Debt securities issued by U.S. government and government agencies [Member]
Fair value of pension assets
Total assets at fair value
Significant Other Observable Inputs (Level 2) [Member] | Other assets [Member]
Fair value of pension assets
Total assets at fair value	39.0	13.7
Significant Unobservable Inputs (Level 3) [Member]
Fair value of pension assets
Total assets at fair value	31.0	28.1
Total plans assets	31.0	28.1
Significant Unobservable Inputs (Level 3) [Member] | Debt securities issued by U.S. government and government agencies [Member]
Fair value of pension assets
Total assets at fair value
Significant Unobservable Inputs (Level 3) [Member] | Other assets [Member]
Fair value of pension assets
Total assets at fair value	$ 31.0	$ 28.1

X

- Definition

Defined benefit plan cash.

+ References

No definition available.

+ Details

Name:	iosp_DefinedBenefitPlanCash
Namespace Prefix:	iosp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This represents the entire assets recognized in the balance sheet that are associated with the defined benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.10)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 49

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(iv)(b)(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration