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INCOME TAXES (Details 2) (USD $)
2 Months Ended 3 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2015
Mar. 31, 2015
Jan. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Reconciliation of the beginning and ending amount of unrecognized tax benefits          
Balance, beginning of period $ 137,593,000us-gaap_UnrecognizedTaxBenefits        
Additions for tax positions of the current year 26,257,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions        
Reductions of tax positions of prior years:          
Changes in judgment (1,028,000)pl_UnrecognizedTaxBenefitsDecreasesResultingFromChangesInJudgment        
Balance, end of period 162,822,000us-gaap_UnrecognizedTaxBenefits 162,822,000us-gaap_UnrecognizedTaxBenefits      
Possible reduction in unrecognized tax benefits due to expected closure of Appeals process   18,500,000pl_UnrecognizedTaxBenefitDecreaseResultingFromExpectedClosureOfAppealsProcessInNextTwelveMonths      
Effective tax rate (as a percent) 32.30%us-gaap_EffectiveIncomeTaxRateContinuingOperations        
Predecessor          
Reconciliation of the beginning and ending amount of unrecognized tax benefits          
Balance, beginning of period   193,244,000us-gaap_UnrecognizedTaxBenefits
/ us-gaap_StatementScenarioAxis
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193,244,000us-gaap_UnrecognizedTaxBenefits
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105,881,000us-gaap_UnrecognizedTaxBenefits
/ us-gaap_StatementScenarioAxis
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105,881,000us-gaap_UnrecognizedTaxBenefits
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Additions for tax positions of the current year     (5,010,000)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
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  57,463,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
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Additions for tax positions of prior years     7,724,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
/ us-gaap_StatementScenarioAxis
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  39,433,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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Reductions of tax positions of prior years:          
Changes in judgment     (58,365,000)pl_UnrecognizedTaxBenefitsDecreasesResultingFromChangesInJudgment
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  (9,533,000)pl_UnrecognizedTaxBenefitsDecreasesResultingFromChangesInJudgment
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Balance, end of period     $ 137,593,000us-gaap_UnrecognizedTaxBenefits
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  $ 193,244,000us-gaap_UnrecognizedTaxBenefits
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Effective tax rate (as a percent)     (27.70%)us-gaap_EffectiveIncomeTaxRateContinuingOperations
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33.20%us-gaap_EffectiveIncomeTaxRateContinuingOperations
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= us-gaap_PredecessorMember