2.2.0.25falsefalse0040 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWStruefalseIn Thousandsfalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) / shares USD ($) $D2010http://www.sec.gov/CIK0000355429duration2010-01-01T00:00:002010-12-31T00:00:00USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalseUSDfalsefalse1/1/2009 - 12/31/2009 USD ($) USD ($) / shares $D2009http://www.sec.gov/CIK0000355429duration2009-01-01T00:00:002009-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 12/31/2008 USD ($) USD ($) / shares $D2008http://www.sec.gov/CIK0000355429duration2008-01-01T00:00:002008-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$5true0us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringThe net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income.falsefalseCash flows from operating activities6false0us-gaap_ProfitLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse259796000259796falsetruefalsefalsefalse2truefalsefalse271488000.0271488falsetruefalsefalsefalse3truefalsefalse-41855000-41855falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) falsefalseNet income (loss)7true0us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseAdjustments to reconcile net income (loss) to net cash provided by operating activities:8false0us-gaap_RealizedInvestmentGainsLossesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse2539300025393falsefalsefalsefalsefalse2truefalsefalse5780400057804falsefalsefalsefalsefalse3truefalsefalse467835000467835falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net realized gains or losses on investments during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 3 -Subparagraph a -Article 7 falsefalseRealized investment losses (gains)9false0pl_AmortizationOfDeferredPolicyAcquisitionCostsAndValueOfBusinessAcquiredplfalsedebitdurationThe sum of amortization related to deferred policy acquisition costs and capitalized value of business acquired asset.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse209722000209722falsefalsefalsefalsefalse2truefalsefalse345569000345569falsefalsefalsefalsefalse3truefalsefalse233742000233742falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of amortization related to deferred policy acquisition costs and capitalized value of business acquired asset.No authoritative reference available.falsefalseAmortization of deferred policy acquisition costs and value of business acquired10false0us-gaap_DeferredPolicyAcquisitionCostsAdditionsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-480383000-480383falsefalsefalsefalsefalse2truefalsefalse-408001000-408001falsefalsefalsefalsefalse3truefalsefalse-403364000-403364falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal amount of policy acquisition costs capitalized during the income statement period.No authoritative reference available.falsefalseCapitalization of deferred policy acquisition costs11false0us-gaap_Depreciationus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse96260009626falsefalsefalsefalsefalse2truefalsefalse80400008040falsefalsefalsefalsefalse3truefalsefalse1051100010511falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 falsefalseDepreciation expense12false0us-gaap_IncreaseDecreaseInDeferredIncomeTaxesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse101317000101317falsefalsefalsefalsefalse2truefalsefalse6665100066651falsefalsefalsefalsefalse3truefalsefalse5481400054814falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change during the reporting period in the account that represents the temporary difference that results from income (loss) that is recognized for accounting purposes but not for tax purposes and vice versa.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseDeferred income tax13false0us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayableus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse6986500069865falsefalsefalsefalsefalse2truefalsefalse-43015000-43015falsefalsefalsefalsefalse3truefalsefalse9151700091517falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change during the period in the amount of cash payments due to taxing authorities for taxes that are based on the reporting entity's earnings.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseAccrued income tax14false0us-gaap_InterestCreditedToPolicyOwnerAccountsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse972806000972806falsefalsefalsefalsefalse2truefalsefalse993245000993245falsefalsefalsefalsefalse3truefalsefalse10436760001043676falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryInterest credited to policy owner accounts is an expense reported in the income statement and needs to be removed from net income to arrive at cash provided by (used in) operations to the extent that such interest has not been paid.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseInterest credited to universal life and investment products15false0us-gaap_PolicyChargesInsuranceus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-611917000-611917falsefalsefalsefalsefalse2truefalsefalse-586842000-586842falsefalsefalsefalsefalse3truefalsefalse-575128000-575128falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAn amount that an insurer adds to a policy's premium, or deducts from a policy's cash value or contract holder's account, as compensation for services rendered; may include fees.No authoritative reference available.falsefalsePolicy fees assessed on universal life and investment products16false0us-gaap_IncreaseDecreaseInReinsuranceRecoverableus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-234032000-234032falsefalsefalsefalsefalse2truefalsefalse-78613000-78613falsefalsefalsefalsefalse3truefalsefalse-165688000-165688falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change during the reporting period in the amount of benefits the ceding insurer expects to recover on insurance policies ceded to other insurance entities as of the balance sheet date for all guaranteed benefit types.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseChange in reinsurance receivables17false0pl_ChangeInAccruedInvestmentIncomeAndOtherReceivablesplfalsecreditdurationThe sum of changes in accrued investment income and changes in other receivables.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-29017000-29017falsefalsefalsefalsefalse2truefalsefalse13260001326falsefalsefalsefalsefalse3truefalsefalse4101500041015falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of changes in accrued investment income and changes in other receivables.No authoritative reference available.falsefalseChange in accrued investment income and other receivables18false0us-gaap_IncreaseDecreaseInInsuranceLiabilitiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse337207000337207falsefalsefalsefalsefalse2truefalsefalse234773000234773falsefalsefalsefalsefalse3truefalsefalse361825000361825falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change in the beginning and end of period all Insurance Liabilities balances; shall be classified as cash flows from operating activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseChange in policy liabilities and other policyholders' funds of traditional life and health products19true0us-gaap_TradingSecuritiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseTrading securities:20false0pl_TradingSecuritiesMaturitiesAndPrincipalReductionsOfInvestmentsplfalsedebitdurationProceeds from maturity and principal reductions of debt and equity securities classified as trading securities.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse355831000355831falsefalsefalsefalsefalse2truefalsefalse562758000562758falsefalsefalsefalsefalse3truefalsefalse460185000460185falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryProceeds from maturity and principal reductions of debt and equity securities classified as trading securities.No authoritative reference available.falsefalseMaturities and principal reductions of investments21false0pl_TradingSecuritiesSaleOfInvestmentsplfalsedebitdurationProceeds from the sale of debt and equity securities classified as trading securities.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse730385000730385falsefalsefalsefalsefalse2truefalsefalse908466000908466falsefalsefalsefalsefalse3truefalsefalse17908690001790869falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryProceeds from the sale of debt and equity securities classified as trading securities.No authoritative reference available.falsefalseSale of investments22false0pl_TradingSecuritiesCostOfInvestmentsAcquiredplfalsecreditdurationPayments to acquire debt and equity securities classified as trading securities.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-963403000-963403falsefalsefalsefalsefalse2truefalsefalse-856223000-856223falsefalsefalsefalsefalse3truefalsefalse-1852868000-1852868falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryPayments to acquire debt and equity securities classified as trading securities.No authoritative reference available.falsefalseCost of investments acquired23false0pl_TradingSecuritiesOtherNetChangeInTradingSecuritiesplfalsedebitdurationThe net change in debt and equity securities classified as trading securities, other than from the following: (1) proceeds...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-25520000-25520falsefalsefalsefalsefalse2truefalsefalse-144838000-144838falsefalsefalsefalsefalse3truefalsefalse-17646000-17646falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change in debt and equity securities classified as trading securities, other than from the following: (1) proceeds from maturity or principal reductions, (2) proceeds from sale, or (3) cost to acquire.No authoritative reference available.falsefalseOther net change in trading securities24false0us-gaap_IncreaseDecreaseInOtherOperatingLiabilitiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse1023600010236falsefalsefalsefalsefalse2truefalsefalse-113318000-113318falsefalsefalsefalsefalse3truefalsefalse-68440000-68440falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change during the reporting period in other operating obligations not otherwise defined in the taxonomy.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseChange in other liabilities25false0pl_IncreaseDecreaseInOtherIncomeFromSurplusNoteRepurchaseplfalsecreditdurationThis element represents net change during the reporting period in other income from surplus note repurchase.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-19027000-19027falsefalsefalsefalsefalse2truefalsefalse-132262000-132262falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents net change during the reporting period in other income from surplus note repurchase.No authoritative reference available.falsefalseOther income - surplus note repurchase26false0us-gaap_IncreaseDecreaseInOtherOperatingCapitalNetus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-8631000-8631falsefalsefalsefalsefalse2truefalsefalse8860800088608falsefalsefalsefalsefalse3truefalsefalse-183561000-183561falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFor entities with classified balance sheets, the net change during the reporting period in the value of other assets or liabilities used in operating activities, that are not otherwise defined in the taxonomy. For entities with unclassified balance sheets, the net change during the reporting period in the value of all other assets or liabilities used in operating activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 falsefalseOther, net27false0us-gaap_NetCashProvidedByUsedInOperatingActivitiesus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse710254000710254falsefalsefalsefalsefalse2truefalsefalse11756160001175616falsefalsefalsefalsefalse3truefalsefalse12474390001247439falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 truefalseNet cash provided by operating activities28true0us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseCash flows from investing activities29false0us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecuritiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse20586780002058678falsefalsefalsefalsefalse2truefalsefalse23946500002394650falsefalsefalsefalsefalse3truefalsefalse18788320001878832falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow associated maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Subsection III Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph b falsefalseMaturities and principal reductions of investments, available-for-sale30false0us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse34260400003426040falsefalsefalsefalsefalse2truefalsefalse16848200001684820falsefalsefalsefalsefalse3truefalsefalse28867280002886728falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 18 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph b falsefalseSale of investments, available-for-sale31false0us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-6389859000-6389859falsefalsefalsefalsefalse2truefalsefalse-4513862000-4513862falsefalsefalsefalsefalse3truefalsefalse-5708018000-5708018falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 18 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph a falsefalseCost of investments acquired, available-for-sale32true0pl_MortageLoansAbstractplfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseMortgage loans:33false0us-gaap_PaymentsToAcquireMortgageNotesReceivableus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-353913000-353913falsefalsefalsefalsefalse2truefalsefalse-304417000-304417falsefalsefalsefalsefalse3truefalsefalse-901424000-901424falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow from the purchase of receivables arising from the mortgage note on real estate.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 falsefalseNew borrowings34false0us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivableus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse364302000364302falsefalsefalsefalsefalse2truefalsefalse263625000263625falsefalsefalsefalsefalse3truefalsefalse328476000328476falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow from proceeds from sale of receivables arising from the mortgage note on real estate; includes collections on mortgage notes receivable that are not classified as operating cash flows.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16 falsefalseRepayments35false0us-gaap_RealEstatePeriodIncreaseDecreaseus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-2551000-2551falsefalsefalsefalsefalse2truefalsefalse-3069000-3069falsefalsefalsefalsefalse3truefalsefalse506000506falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal increase (decrease) in the carrying amount of real estate investments during the period.No authoritative reference available.falsefalseChange in investment real estate, net36false0pl_PaymentsToProceedsFromPolicyLoansplfalsecreditdurationThe net amount paid (received) by the reporting entity associated with the funding and collection of loans receivable to...falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse3166300031663falsefalsefalsefalsefalse2truefalsefalse1665700016657falsefalsefalsefalsefalse3truefalsefalse73470007347falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net amount paid (received) by the reporting entity associated with the funding and collection of loans receivable to policy holders principally secured by the benefits under the policy.No authoritative reference available.falsefalseChange in policy loans, net37false0pl_ChangeInOtherLongTermInvestmentsNetplfalsecreditdurationThe net change in investments other than investments that are the following: (1) investments available-for-sale, (2) mortgage...falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-74555000-74555falsefalsefalsefalsefalse2truefalsefalse-39994000-39994falsefalsefalsefalsefalse3truefalsefalse-30764000-30764falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change in investments other than investments that are the following: (1) investments available-for-sale, (2) mortgage loans, (3) investment real estate, (4) policy loans, or (5) short-term investments.No authoritative reference available.falsefalseChange in other long-term investments, net38false0us-gaap_PaymentsForProceedsFromShortTermInvestmentsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse701589000701589falsefalsefalsefalsefalse2truefalsefalse119707000119707falsefalsefalsefalsefalse3truefalsefalse-28562000-28562falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net amount paid (received) by the reporting entity through acquisition (sale/maturities) of short-term investments with an original maturity that is three months or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 13 falsefalseChange in short-term investments, net39false0pl_UnsettledSecurityTransactionsNetplfalsecreditdurationThis element represents the net cash inflow (outflow) associated with the unsettled security transactions during the period.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-340000-340falsefalsefalsefalsefalse2truefalsefalse1479700014797falsefalsefalsefalsefalse3truefalsefalse-3819000-3819falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the net cash inflow (outflow) associated with the unsettled security transactions during the period.No authoritative reference available.falsefalseNet unsettled security transactions40false0us-gaap_PaymentsToAcquirePropertyPlantAndEquipmentus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-10734000-10734falsefalsefalsefalsefalse2truefalsefalse-8243000-8243falsefalsefalsefalsefalse3truefalsefalse-5552000-5552falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c falsefalsePurchase of property and equipment41false0us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipmentus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse4100041falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse787000787falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph c falsefalseSales of property and equipment42false0us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-348288000-348288falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 falsefalsePayments for business acquisitions43false0us-gaap_NetCashProvidedByUsedInInvestingActivitiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse-597927000-597927falsefalsefalsefalsefalse2truefalsefalse-375329000-375329falsefalsefalsefalsefalse3truefalsefalse-1575463000-1575463falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net cash inflow (outflow) from investing activity.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 truefalseNet cash used in investing activities44true0us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseCash flows from financing activities45false0pl_BorrowingsUnderLineOfCreditArrangementsAndLongTermDebtplfalsedebitdurationBorrowing from line of credit arrangements with maturities initially due beyond one year.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse132000000132000falsefalsefalsefalsefalse2truefalsefalse10520000001052000falsefalsefalsefalsefalse3truefalsefalse155000000155000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryBorrowing from line of credit arrangements with maturities initially due beyond one year.No authoritative reference available.falsefalseBorrowings under line of credit arrangements and debt46false0pl_PrincipalPaymentsOnLineOfCreditArrangementsAndLongTermDebtplfalsecreditdurationPayments for the settlement of obligations drawn from line of credit arrangements and the repayments of other borrowings with...falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-275000000-275000falsefalsefalsefalsefalse2truefalsefalse-122000000-122000falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryPayments for the settlement of obligations drawn from line of credit arrangements and the repayments of other borrowings with maturities initially due beyond one year.No authoritative reference available.falsefalsePrincipal payments on line of credit arrangement and debt47false0pl_PaymentsOnLiabilitiesRelatedToVariableInterestEntitiesplfalsecreditdurationThe cash outflow for repayments of notes payable owed by variable interest entitles of the reporting entity that are...falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse-400000000-400000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow for repayments of notes payable owed by variable interest entitles of the reporting entity that are consolidated in accordance with FIN 46R, but are not the reporting entity's legal obligations.No authoritative reference available.falsefalsePayments on liabilities related to variable interest entities48false0pl_IssuanceOfNonRecourseFundingObligationsplfalsedebitdurationThe cash inflow from the issuance of non-recourse funding obligations.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-42600000-42600falsefalsefalsefalsefalse2truefalsefalse-667738000-667738falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow from the issuance of non-recourse funding obligations.No authoritative reference available.falsefalseIssuance (repayment) of non-recourse funding obligations49false0us-gaap_PaymentsOfDividendsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-46250000-46250falsefalsefalsefalsefalse2truefalsefalse-37339000-37339falsefalsefalsefalsefalse3truefalsefalse-57010000-57010falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow from the entity's earnings to the shareholders.Reference 1: 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of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a falsefalseIssuance of common stock51false0us-gaap_ProceedsFromAnnuitiesAndInvestmentCertificatesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse36354470003635447falsefalsefalsefalsefalse2truefalsefalse25900810002590081falsefalsefalsefalsefalse3truefalsefalse52873430005287343falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash inflow from an insurance contract under which the policy holder make a lump sum payment or a series of payments in exchange for periodic payments to the policyholder beginning immediately or at some future date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26, 31 falsefalseInvestments product deposits and change in universal life deposits52false0us-gaap_RepaymentsOfAnnuitiesAndInvestmentCertificatesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-3477430000-3477430falsefalsefalsefalsefalse2truefalsefalse-3675247000-3675247falsefalsefalsefalsefalse3truefalsefalse-4588354000-4588354falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cash outflow for an insurance contract under which the policy holder make a lump sum payment or a series of payments in exchange for periodic payments to the policyholder beginning immediately or at some future date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26, 31 falsefalseInvestment product withdrawals53false0us-gaap_ProceedsFromPaymentsForOtherFinancingActivitiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse2060600020606falsefalsefalsefalsefalse2truefalsefalse-16652000-16652falsefalsefalsefalsefalse3truefalsefalse-65749000-65749falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net cash inflow (outflow) from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 falsefalseOther financing activities, net54false0us-gaap_NetCashProvidedByUsedInFinancingActivitiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse-53227000-53227falsefalsefalsefalsefalse2truefalsefalse-744320000-744320falsefalsefalsefalsefalse3truefalsefalse331230000331230falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net cash inflow (outflow) from financing activity for the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 truefalseNet cash (used in) provided by financing activities55false0pl_CashPeriodIncreaseDecreaseplfalsenadurationThe net change between the beginning and ending balance of cash.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse5910000059100falsefalsefalsefalsefalse2truefalsefalse5596700055967falsefalsefalsefalsefalse3truefalsefalse32060003206falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net change between the beginning and ending balance of cash.No authoritative reference available.truefalseChange in cash56false0us-gaap_Cashus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsetruefalsefalseperiodstartlabel1truefalsefalse205325000205325falsefalsefalsefalsefalse2truefalsefalse149358000149358falsefalsefalsefalsefalse3truefalsefalse146152000146152falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryUnrestricted cash available for day-to-day operating needs.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 falsefalseCash at beginning of period57false0us-gaap_Cashus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsetruefalseperiodendlabel1truefalsefalse264425000264425falsetruefalsefalsefalse2truefalsefalse205325000205325falsetruefalsefalsefalse3truefalsefalse149358000149358falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryUnrestricted cash available for day-to-day operating needs.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 falsefalseCash at end of period353CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)ThousandsUnKnownUnKnownUnKnownfalsetrue