Name:	plico_CommercialMortgageSecuritizationsDisclosureAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents the amount of delinquent mortgage loans, foreclosed properties, and restructured loans pursuant to a pooling and servicing agreement.

+ References

No definition available.

+ Details

Name:	plico_FinancingReceivableAmountOfDelinquentForeclosedAndRestructuredLoans
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the number of categories of loans.

+ References

No definition available.

+ Details

Name:	plico_FinancingReceivableLoanCategoriesNumber
Namespace Prefix:	plico_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the maximum amount of nonperforming mortgage loans, foreclosed properties and restructured loans pursuant to a pooling and servicing agreement, as a percent of invested assets.

+ References

No definition available.

+ Details

Name:	plico_FinancingReceivableNonperformingForeclosedAndRestructuredLoansToInvestedAssetsPercentage
Namespace Prefix:	plico_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the amount of financing receivables not subject to a pooling and servicing agreement that are nonperforming.

+ References

No definition available.

+ Details

Name:	plico_FinancingReceivableNotSubjectToPoolingAndServicingAgreementNonperformingAmount
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of financing receivables subject to a pooling and servicing agreement that are nonperforming.

+ References

No definition available.

+ Details

Name:	plico_FinancingReceivableSubjectToPoolingAndServicingAgreementNonperformingAmount
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the average size of mortgage loans on real estate held in the portfolio on the balance sheet date.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateAverageSizeOfLoans
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the percentage of the mortgage loan portfolio represented by an single tenant.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateExposureToSingleTenant
Namespace Prefix:	plico_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the amount of mortgage loans on real estate due to the entity after the eleventh fiscal year following the latest fiscal year, if the loans are called at their next call dates.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateIfCalledDueAfterElevenYears
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the amount of mortgage loans on real estate due to the entity in the remainder of the fiscal year following the latest fiscal year ended, if the loans are called at their next call dates.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateIfCalledDueInRemainderOfFiscalYear
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the amount of mortgage loans on real estate due to the entity in the seventh fiscal year through the eleventh fiscal year following the latest fiscal year, if the loans are called at their next call dates.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateIfCalledDueYearSevenToEleven
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the amount of mortgage loans on real estate due to the entity in the second fiscal year through the sixth fiscal year following the latest fiscal year, if the loans are called at their next call dates.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateIfCalledDueYearTwoThroughSix
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the amount of the largest mortgage loan on real estate held in the portfolio as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateLargestLoanAmount
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the loan-to-value ratio permitted on commercial mortgage loans in exchange for a participating interest in the cash flows from the underlying property.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateLoanToValueRatioParticipatingInterest
Namespace Prefix:	plico_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the average size of new mortgage loans on real estate during the reporting period.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateNewMortgageLoansAverageSizeOfLoans
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the amount of mortgage loans as of the balance sheet date which has a feature providing the entity a participating interest in the cash flows from the underlying real estate.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstateParticipatingLoans
Namespace Prefix:	plico_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the period within which the call option or interest rate reset option on the mortgage loan on real estate can be exercised.

+ References

No definition available.

+ Details

Name:	plico_MortgageLoansOnRealEstatePeriodForExerciseOfCallOptionOrInterestRateResetOption
Namespace Prefix:	plico_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of nonperforming financing receivables which are not subject to a pooling and servicing agreement.

+ References

No definition available.

+ Details

Name:	plico_NumberOfNonperformingFinancingReceivableNotSubjectToPoolingAndServicingAgreement
Namespace Prefix:	plico_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of nonperforming financing receivables subject to a pooling and servicing agreement, which have been restructured under the terms and conditions of the pooling and servicing agreement.

+ References

No definition available.

+ Details

Name:	plico_NumberOfNonperformingFinancingReceivableSubjectToPoolingAndServicingAgreementWhichHaveBeenRestructured
Namespace Prefix:	plico_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of single tenants whose exposure represents more then two percent of the mortgage loan portfolio.

+ References

No definition available.

+ Details

Name:	plico_NumberOfSingleTenantsWhoseExposureRepresentsMoreThan2PercentOfMortgageLoansOnRealEstate
Namespace Prefix:	plico_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of troubled debt restructuring loans that remained on the balance sheet at the end of the reporting period.

+ References

No definition available.

+ Details

Name:	plico_NumberOfTroubledDebtRestructuringLoansRemainingOnBalanceSheet
Namespace Prefix:	plico_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents mortgage loans on real estate as a percentage of the total portfolio.

+ References

No definition available.

+ Details

Name:	plico_PercentageOfMortgageLoansOnRealEstate
Namespace Prefix:	plico_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(4)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 40

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554

+ Details

Name:	us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 60

-Paragraph 47

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(c))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Subparagraph c

-Article 7

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateCommercialAndConsumerNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Total amount of new mortgage loans on real estate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29.6)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5

+ Details

Name:	us-gaap_MortgageLoansOnRealEstateNewMortgageLoans
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 11

-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 168, 169, 170

-IssueDate 2006-05-01

-Chapter 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.11)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

Name:	us-gaap_ProvisionForLoanLeaseAndOtherLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration