XML 29 R61.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2012
Schedule of expected settlement payments |
Fines, penalties and disgorgements | $ 40.2
Fees and associated expenses | 3.9
Less discounting to net present value | (0.2)
Government investigations and other matters Expenses, Total | 43.9
Amounts paid | (30.4)
Exchange effect | 0.3
Expected total amounts paid | 13.8
Due within one year | (9.7)
Total long term amount | 4.1
Government Authorities [Member] |
Schedule of expected settlement payments |
Fines, penalties and disgorgements | 40.2
Fees and associated expenses | 0
Less discounting to net present value | (0.2)
Government investigations and other matters Expenses, Total | 40.0
Amounts paid | (28.2)
Exchange effect | 0.3
Expected total amounts paid | 12.1
Due within one year | (8.4)
Total long term amount | 3.7
Compliance Monitor [Member] |
Schedule of expected settlement payments |
Fines, penalties and disgorgements | 0
Fees and associated expenses | 3.9
Less discounting to net present value | 0
Government investigations and other matters Expenses, Total | 3.9
Amounts paid | (2.2)
Exchange effect | 0
Expected total amounts paid | 1.7
Due within one year | (1.3)
Total long term amount | $ 0.4

X
- Definition Discounting to net present value. + References No definition available. + Details
Name: | iosp_DiscountingToNetPresentValue
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fees and associated expenses. + References No definition available. + Details
Name: | iosp_FeesAndAssociatedExpenses
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fines penalties and disgorgements undiscounted. + References No definition available. + Details
Name: | iosp_FinesPenaltiesAndDisgorgementsUndiscounted
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Settlement and other expenses, total. + References No definition available. + Details
Name: | iosp_SettlementAndOtherExpenses
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Settlement and other expenses, amounts outstanding. + References No definition available. + Details
Name: | iosp_SettlementAndOtherExpensesAmountsOutstanding
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Settlement and other expenses, amounts paid. + References No definition available. + Details
Name: | iosp_SettlementAndOtherExpensesAmountsPaid
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Settlement and other expenses, current. + References No definition available. + Details
Name: | iosp_SettlementAndOtherExpensesCurrent
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Settlement and other expenses, exchange effect. + References No definition available. + Details
Name: | iosp_SettlementAndOtherExpensesExchangeEffect
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Settlement and other expenses, noncurrent. + References No definition available. + Details
Name: | iosp_SettlementAndOtherExpensesNoncurrent
Namespace Prefix: | iosp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration