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Note 16 - Contingencies, Environmental And Legal Matters (Details) (USD $)
0 Months Ended
Feb. 19, 2015
Jul. 08, 2014
Dec. 31, 2014
Dec. 31, 2013
Note 16 - Contingencies, Environmental And Legal Matters (Details) [Line Items]        
Asset Retirement Obligation     $ 18,500,000us-gaap_AssetRetirementObligation $ 4,800,000us-gaap_AssetRetirementObligation
Reserves for Environmental Contingencies     4,500,000pah_ReservesForEnvironmentalContingencies 2,900,000pah_ReservesForEnvironmentalContingencies
Loss Contingency, Estimate of Possible Loss     4,400,000us-gaap_LossContingencyEstimateOfPossibleLoss 2,900,000us-gaap_LossContingencyEstimateOfPossibleLoss
Subsequent Event [Member] | Settled Litigation [Member] | MacDermid [Member]        
Note 16 - Contingencies, Environmental And Legal Matters (Details) [Line Items]        
Litigation Settlement, Amount 25,000,000us-gaap_LitigationSettlementAmount
/ dei_LegalEntityAxis
= pah_MacDermidMember
/ us-gaap_LitigationStatusAxis
= us-gaap_SettledLitigationMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
     
Awarded for Anti-Trust Damages [Member] | MacDermid [Member]        
Note 16 - Contingencies, Environmental And Legal Matters (Details) [Line Items]        
Litigation Settlement, Amount   3,900,000us-gaap_LitigationSettlementAmount
/ us-gaap_GainContingenciesByNatureAxis
= pah_AwardedForAntiTrustDamagesMember
/ dei_LegalEntityAxis
= pah_MacDermidMember
   
Awarded for Breach of Contract Damages [Member] | MacDermid [Member]        
Note 16 - Contingencies, Environmental And Legal Matters (Details) [Line Items]        
Litigation Settlement, Amount   7,900,000us-gaap_LitigationSettlementAmount
/ us-gaap_GainContingenciesByNatureAxis
= pah_AwardedForBreachOfContractDamagesMember
/ dei_LegalEntityAxis
= pah_MacDermidMember
   
Awarded for Additional Punitive Damages for Misappropriation of Trade Secrets [Member] | MacDermid [Member]        
Note 16 - Contingencies, Environmental And Legal Matters (Details) [Line Items]        
Litigation Settlement, Amount   3,800,000us-gaap_LitigationSettlementAmount
/ us-gaap_GainContingenciesByNatureAxis
= pah_AwardedForAdditionalPunitiveDamagesForMisappropriationOfTradeSecretsMember
/ dei_LegalEntityAxis
= pah_MacDermidMember
   
Awarded for Additional Punitive Damages for Unfair Trade Practices [Member] | MacDermid [Member]        
Note 16 - Contingencies, Environmental And Legal Matters (Details) [Line Items]        
Litigation Settlement, Amount   $ 11,900,000us-gaap_LitigationSettlementAmount
/ us-gaap_GainContingenciesByNatureAxis
= pah_AwardedForAdditionalPunitiveDamagesForUnfairTradePracticesMember
/ dei_LegalEntityAxis
= pah_MacDermidMember