Name:	plico_EstimatedOrdinaryDividendFromInsuranceSubsidiariesMaximum
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The amount of consolidated stockholder's equity, excluding net unrealized gains on investments, which represents net assets of insurance subsidiaries which is required to be maintained as a minimum capital with respect to the state insurance department.

No definition available.

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

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 825
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123600598&loc=SL75763979-209797

Name:	us-gaap_AssetsHeldByInsuranceRegulators
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

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_StatutoryAccountingPracticesLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
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The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(c))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

Name:	us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of net income for the period determined using accounting principles prescribed or permitted by insurance regulators.