XML 35 R29.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Goodwill (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2012
Goodwill [Abstract] |
Summary of Goodwill |
|  | Nine Months Ended September 30 |
(in millions) |  | 2012 |  |  | 2011 |
At January 1 |  |  |  |  |  |  |  |
Gross cost |  | $ | 674.0 |  |  | $ | 674.1 |
Accumulated Octane Additives segment goodwill impairment losses |  |  | (234.0 | ) |  |  | (232.0 | )
|  |  | 440.0 |  |  |  | 442.1 |
Exchange effect |  |  | 0.1 |  |  |  | 0.2 |
Impairment of Octane Additives segment goodwill |  |  | (0.9 | ) |  |  | (1.7 | )
At September 30 |  |  | 439.2 |  |  |  | 440.6 |
Gross cost |  |  | 674.1 |  |  |  | 674.3 |
Accumulated Octane Additives segment goodwill impairment losses |  |  | (234.9 | ) |  |  | (233.7 | )
|  |  | 439.2 |  |  |  | 440.6 |
Accumulated amortization at January 1 |  |  | (298.5 | ) |  |  | (298.5 | )
Exchange effect |  |  | (0.2 | ) |  |  | (0.2 | )
Accumulated amortization at September 30 |  |  | (298.7 | ) |  |  | (298.7 | )
Net book amount at September 30 |  | $ | 140.5 |  |  | $ | 141.9 |
Fuel Specialties and Performance Chemicals segments goodwill |  | $ | 139.0 |  |  | $ | 139.0 |
Octane Additives segment goodwill |  |  | 1.5 |  |  |  | 2.9 |
|  | $ | 140.5 |  |  | $ | 141.9 |

X
- Details
Name: | iosp_GoodwillAbstract
Namespace Prefix: | iosp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -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. + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration