XML 53 R43.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Note 7 - Underwriting Information - Schedule of Gross Written Premiums (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Gross written premiums | [1] | $ 368,078 | $ 250,112
Percentage of Gross Written Premiums | [1] | 100.00% | 100.00%
Palomar Specialty Insurance Company [Member] |  |  |
Gross written premiums |  | $ 222,657 | $ 150,704
Percentage of Gross Written Premiums |  | 60.50% | 60.30%
Palomar Excess And Surplus Insurance Company [Member] |  |  |
Gross written premiums |  | $ 136,493 | $ 99,408
Percentage of Gross Written Premiums |  | 37.10% | 39.70%
Laulima Insurance Company [Member] |  |  |
Gross written premiums |  | $ 8,928 | $ 0
Percentage of Gross Written Premiums |  | 2.40% | 0.00%
CALIFORNIA |  |  |
Gross written premiums |  | $ 157,217 | $ 131,889
Percentage of Gross Written Premiums |  | 42.70% | 52.70%
TEXAS |  |  |
Gross written premiums |  | $ 40,795 | $ 23,210
Percentage of Gross Written Premiums |  | 11.10% | 9.30%
FLORIDA |  |  |
Gross written premiums |  | $ 13,924 | $ 12,096
Percentage of Gross Written Premiums |  | 3.80% | 4.80%
HAWAII |  |  |
Gross written premiums |  | $ 12,516 | $ 10,105
Percentage of Gross Written Premiums |  | 3.40% | 4.00%
WASHINGTON |  |  |
Gross written premiums |  | $ 12,002 | $ 11,972
Percentage of Gross Written Premiums |  | 3.30% | 4.80%
COLORADO |  |  |
Gross written premiums |  | $ 9,605 | $ 1,848
Percentage of Gross Written Premiums |  | 2.60% | 0.70%
NEW YORK |  |  |
Gross written premiums |  | $ 8,030 | $ 3,871
Percentage of Gross Written Premiums |  | 2.20% | 1.50%
NEW MEXICO |  |  |
Gross written premiums |  | $ 7,469 | $ 194
Percentage of Gross Written Premiums |  | 2.00% | 0.10%
Other States [Member] |  |  |
Gross written premiums |  | $ 106,520 | $ 54,927
Percentage of Gross Written Premiums |  | 28.90% | 22.00%
Earthquake Premiums [Member] |  |  |
Gross written premiums | [1] | $ 105,729 | $ 93,495
Percentage of Gross Written Premiums | [1] | 28.70% | 37.40%
Fronting Premium [Member] |  |  |
Gross written premiums | [1] | $ 94,831 | $ 91,755
Percentage of Gross Written Premiums | [1] | 25.80% | 36.70%
Inland Marine and Other Property [Member] |  |  |
Gross written premiums | [1] | $ 76,876 | $ 52,705
Percentage of Gross Written Premiums | [1] | 20.90% | 21.10%
Casualty [Member] |  |  |
Gross written premiums | [1] | $ 51,935 | $ 12,157
Percentage of Gross Written Premiums | [1] | 14.10% | 4.90%
Crop [Member] |  |  |
Gross written premiums | [1] | $ 38,707 | $ 0
Percentage of Gross Written Premiums | [1] | 10.50% | 0.00%
[1] | Beginning in 2024, the Company has updated the categorization of its products to align with management's current strategy and view of the business. Prior year amounts have been reclassified for comparability purposes. The recategorization is for presentation purposes only and does not impact overall gross written premiums.

X
- Definition Represents percentage of gross written premiums. + References No definition available. + Details
Name: | plmr_PercentageOfGrossWrittenPremiums
Namespace Prefix: | plmr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of direct and assumed premiums written. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 605 -Topic 944 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479032/944-605-50-1 + Details
Name: | us-gaap_PremiumsWrittenGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=plmr_PalomarSpecialtyInsuranceCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=plmr_PalomarExcessAndSurplusInsuranceCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=plmr_LaulimaInsuranceCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_TX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_HI
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_WA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_CO
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_NY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_NM
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=plmr_OtherStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=plmr_EarthquakePremiumsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=plmr_FrontingPremiumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=plmr_InlandMarineAndOtherPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=plmr_CasualtyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=plmr_CropMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |