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INCOME TAXES (Details 2) (USD $)
1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2015
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Reconciliation of the beginning and ending amount of unrecognized tax benefits        
Balance, beginning of period   $ 105,850,000us-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   (899,000)plico_UnrecognizedTaxBenefitsDecreasesResultingFromChangesInJudgment    
Balance, end of period 105,850,000us-gaap_UnrecognizedTaxBenefits 131,208,000us-gaap_UnrecognizedTaxBenefits    
Estimated period to conclude appeals process for protesting certain unfavorable adjustments in IRS audit 12 months      
Possible reduction in unrecognized tax benefits due to expected closure of appeals process 7,500,000plico_UnrecognizedTaxBenefitDecreaseResultingFromExpectedClosureOfAppealsProcessInNextTwelveMonths      
Effective income tax rate (as a percent)   33.10%us-gaap_EffectiveIncomeTaxRateContinuingOperations    
Predecessor        
Reconciliation of the beginning and ending amount of unrecognized tax benefits        
Balance, beginning of period 168,076,000us-gaap_UnrecognizedTaxBenefits
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  85,846,000us-gaap_UnrecognizedTaxBenefits
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85,846,000us-gaap_UnrecognizedTaxBenefits
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Additions for tax positions of the current year (5,010,000)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
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    57,392,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
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Additions for tax positions of prior years 1,149,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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    34,371,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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Reductions of tax positions of prior years:        
Changes in judgment (58,365,000)plico_UnrecognizedTaxBenefitsDecreasesResultingFromChangesInJudgment
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    (9,533,000)plico_UnrecognizedTaxBenefitsDecreasesResultingFromChangesInJudgment
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Balance, end of period $ 105,850,000us-gaap_UnrecognizedTaxBenefits
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    $ 168,076,000us-gaap_UnrecognizedTaxBenefits
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Effective income tax rate (as a percent) 32.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations
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  32.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations
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