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Note 16 - Contingencies, Environmental And Legal Matters (Details) - Changes in the Company’s AROs for the Successor and Predecessor 2013 Periods (USD $)
9 Months Ended 12 Months Ended 10 Months Ended
Dec. 31, 2013
Dec. 31, 2014
Oct. 31, 2013
Note 16 - Contingencies, Environmental And Legal Matters (Details) - Changes in the Company’s AROs for the Successor and Predecessor 2013 Periods [Line Items]      
Balance, $ 4,800,000us-gaap_AssetRetirementObligation $ 18,500,000us-gaap_AssetRetirementObligation  
Successor [Member]      
Note 16 - Contingencies, Environmental And Legal Matters (Details) - Changes in the Company’s AROs for the Successor and Predecessor 2013 Periods [Line Items]      
Balance, April 23, 2013 (inception) 0us-gaap_AssetRetirementObligation
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
4,800us-gaap_AssetRetirementObligation
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Balance, 4,800us-gaap_AssetRetirementObligation
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
18,500us-gaap_AssetRetirementObligation
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Acquisitions 4,800pah_AssetRetirementObligationAcquisitions
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
13,200pah_AssetRetirementObligationAcquisitions
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Additional obligations incurred   500us-gaap_AssetRetirementObligationLiabilitiesIncurred
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Accretion expense   700us-gaap_AssetRetirementObligationAccretionExpense
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Payments   (200)pah_AssetRetirementObligationPayments
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Foreign currency adjustments   (500)us-gaap_AssetRetirementObligationForeignCurrencyTranslation
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
 
Predecessor [Member]      
Note 16 - Contingencies, Environmental And Legal Matters (Details) - Changes in the Company’s AROs for the Successor and Predecessor 2013 Periods [Line Items]      
Balance, April 23, 2013 (inception)     2,300us-gaap_AssetRetirementObligation
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
Balance,     2,200us-gaap_AssetRetirementObligation
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
Settlements     (100)us-gaap_AssetRetirementObligationLiabilitiesSettled
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
Accretion expense     100us-gaap_AssetRetirementObligationAccretionExpense
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
Foreign currency adjustments     $ (100)us-gaap_AssetRetirementObligationForeignCurrencyTranslation
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember