Consolidated Financial Statements (Details) (USD $) In Millions	6 Months Ended
Jun. 30, 2010
Consolidated Financial Statements
Prior period reclassification adjustment from changes in other assets to changes in other liabilities	$ 5.8

Name:

iff_CondensedConsolidatedFinancialStatementAbstract

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iff

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xbrli:stringItemType

Balance Type:

na

Period Type:

duration