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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)
 12 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Mar. 04, 2014
Oct. 31, 2013
Jan. 31, 2014
Jan. 23, 2014
Dec. 31, 2013
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Share Price (in Dollars per share)         $ 0.01us-gaap_SharePrice  
Goodwill, Impairment Loss (in Dollars) $ 0us-gaap_GoodwillImpairmentLoss          
Goodwill (in Dollars) 1,405,300,000us-gaap_Goodwill         989,800,000us-gaap_Goodwill
Inventory Adjustments (in Dollars) 35,500,000us-gaap_InventoryAdjustments         23,900,000us-gaap_InventoryAdjustments
MacDermid, Incorporated Employee Savings And 401(k) Plan [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year (in Dollars) 1,400,000us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear
/ us-gaap_PlanNameAxis
= pah_MacDermidIncorporatedEmployeeSavingsAnd401kPlanMember		          
Defined Benefit Plan, Contributions by Employer (in Dollars) 700,000us-gaap_DefinedBenefitPlanContributionsByEmployer
/ us-gaap_PlanNameAxis
= pah_MacDermidIncorporatedEmployeeSavingsAnd401kPlanMember		          
MacDermid [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Business Acquisition, Percentage of Ownership   3.00%pah_BusinessAcquisitionPercentageOfOwnership
/ us-gaap_BusinessAcquisitionAxis
= pah_MacDermidMember		 97.00%pah_BusinessAcquisitionPercentageOfOwnership
/ us-gaap_BusinessAcquisitionAxis
= pah_MacDermidMember		      
Goodwill (in Dollars) 990,200,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= pah_MacDermidMember		          
Fair Value Inputs, Discount Rate       2.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_BusinessAcquisitionAxis
= pah_MacDermidMember		    
Arysta [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Restricted Cash and Cash Equivalents (in Dollars) 600,000,000us-gaap_RestrictedCashAndCashEquivalents
/ us-gaap_BusinessAcquisitionAxis
= pah_ArystaMember		          
Customer Lists [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 8 years          
Customer Lists [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 30 years          
Developed Technology Rights [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 5 years          
Developed Technology Rights [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 14 years          
Trade Names [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 5 years          
Trade Names [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 20 years          
Noncompete Agreements [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 1 year          
Noncompete Agreements [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Finite-Lived Intangible Asset, Useful Life 5 years          
Offshore [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 7.60%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= pah_OffshoreMember		          
Goodwill (in Dollars) 364,000,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= pah_OffshoreMember		          
Fair Value Inputs, Long-term Revenue Growth Rate 3.50%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= pah_OffshoreMember		          
Offshore [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Fair Value Inputs, Long-term Revenue Growth Rate (0.70%)us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementBusinessSegmentsAxis
= pah_OffshoreMember		          
Offshore [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Fair Value Inputs, Long-term Revenue Growth Rate 9.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementBusinessSegmentsAxis
= pah_OffshoreMember		          
ASF Americas [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 11.10%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_StatementBusinessSegmentsAxis
= pah_ASFAmericasMember		          
Goodwill (in Dollars) $ 78,300,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= pah_ASFAmericasMember		          
Fair Value Inputs, Long-term Revenue Growth Rate 3.00%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= pah_ASFAmericasMember		          
ASF Americas [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Fair Value Inputs, Long-term Revenue Growth Rate 2.30%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementBusinessSegmentsAxis
= pah_ASFAmericasMember		          
ASF Americas [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Fair Value Inputs, Long-term Revenue Growth Rate 5.90%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementBusinessSegmentsAxis
= pah_ASFAmericasMember		          
ASF Americas and Offshore [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Fair Value Inputs, Long-term Growth Term 7 years          
Building and Building Improvements [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Property, Plant and Equipment, Useful Life 5 years          
Building and Building Improvements [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Property, Plant and Equipment, Useful Life 20 years          
Machinery and Equipment [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Property, Plant and Equipment, Useful Life 3 years          
Machinery and Equipment [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Property, Plant and Equipment, Useful Life 15 years          
Computer Hardware And software [Member] | Minimum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Property, Plant and Equipment, Useful Life 3 years          
Computer Hardware And software [Member] | Maximum [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Property, Plant and Equipment, Useful Life 5 years          
Weighted Average Cost Of Capital, WACC [Member]            
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items]            
Fair Value Inputs, Discount Rate 10.50%us-gaap_FairValueInputsDiscountRate
/ us-gaap_ValuationTechniqueAxis
= pah_WeightedAverageCostOfCapitalWACCMember