XML 107 R88.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Reinsurance - Narrative (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Mar. 30, 2010 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Reinsurance Retention Policy [Line Items] |  |  |  |
Amount of life insurance retained on the life of one person |  | $ 1,000,000 |  |
Reinsurance, loss on uncollectible accounts in period, amount |  | 0 | $ 0 | $ 0
Reinsurance recoverable on paid losses |  | 24,600,000 | 28,600,000 |
Benefits and claims ceded to reinsurers |  | $ 1,279,000,000.0 | 1,337,300,000 | 1,205,600,000
Deposit asset underlying 10% coinsurance agreement |  |  | $ 229,000,000.0 | $ 217,300,000
Percentage of finance charge for statutory reserves |  | 0.50% |  |
Pecan Re Inc [Member] |  |  |  |
Reinsurance Retention Policy [Line Items] |  |  |  |
Percentage of risks and rewards of term life insurance policies in force |  | 10.00% |  |
IPO coinsurance agreements [Member] |  |  |  |
Reinsurance Retention Policy [Line Items] |  |  |  |
Percentage of risks and rewards of term life insurance policies in force |  | 10.00% |  |
Minimum [Member] | IPO coinsurance agreements [Member] |  |  |  |
Reinsurance Retention Policy [Line Items] |  |  |  |
Percentage of risks and rewards of term life insurance policies in force | 80.00% |  |  |
Maximum [Member] | IPO coinsurance agreements [Member] |  |  |  |
Reinsurance Retention Policy [Line Items] |  |  |  |
Percentage of risks and rewards of term life insurance policies in force | 90.00% |  |  |

X
- Definition Percentage of finance charge for statutory reserves. + References No definition available. + Details
Name: | pri_PercentageOfFinanceChargeForStatutoryReserves
Namespace Prefix: | pri_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the reinsurer's funds held on its behalf by the ceding insurer, including funds held in trust, under reinsurance treaties or contracts with the assuming insurer as security for the payment of the obligations thereunder. + References 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 210.7-03.2,10) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_FundsHeldUnderReinsuranceAgreementsAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of reduction of provision for policy benefits and costs incurred for policies ceded. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=99397103&loc=d3e6811-158387 + Details
Name: | us-gaap_ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of the write-down or write-off of a receivable from a reinsurer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
Name: | us-gaap_ReinsuranceLossOnUncollectibleAccountsInPeriodAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to and paid by the ceding insurer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=99404803&loc=d3e21412-158489 Reference 2: 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),6) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=99397103&loc=d3e6824-158387 + Details
Name: | us-gaap_ReinsuranceRecoverablesOnPaidLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Stated amount that is the upper retention limit per entity policy. + References No definition available. + Details
Name: | us-gaap_ReinsuranceRetentionPolicyAmountRetained
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_ReinsuranceRetentionPolicyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of risk reinsured on insurance products per entity policy. + References No definition available. + Details
Name: | us-gaap_ReinsuranceRetentionPolicyReinsuredRiskPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CededCreditRiskAxis=pri_PecanReIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ReinsurancePolicyTypeAxis=pri_IPOCoinsuranceAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |