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v2.4.1.9

Restructuring and Other Reorganization-Related Costs Prior Year Plans (Details) (Prior Year Restructuring Plans [Domain], USD $) In Millions, unless otherwise specified | Mar. 31, 2015
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Prior Year Restructuring Plans [Domain] |
Restructuring Reserve | $ 0.9 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ipg_PriorYearRestructuringPlansDomain

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant