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Income Taxes Tax Years Open to Examination (Details) | 3 Months Ended
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Mar. 31, 2012
One hundred percent valuation allowance | 100.00%
Domestic country | Minimum |
Open tax years | 2009
State and local jurisdiction | Minimum |
Open tax years | 1999
Foreign country | Minimum |
Open tax years | 2004

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- Definition No tax benefit received on losses in certain foreign locations due to 100% valuation allowances. + References No definition available. + Details
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Namespace Prefix: | ipg_
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Balance Type: | na
Period Type: | duration

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- Definition Identification, by major jurisdiction, of tax years that remain open to examination under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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Period Type: | duration