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

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.

No definition available.

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

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.

No definition available.

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

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.

No definition available.

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

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

No definition available.

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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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

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.

Reference 1: 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