XML 117 R105.htm IDEA: XBRL DOCUMENT v3.25.4

Note 20 - Dividend Restrictions (Details Textual) - USD ($) $ in Millions	1 Months Ended
	Oct. 31, 2024	Dec. 31, 2025
Dividend Restrictions [Line Items]
Threshold Dividend or Distribution without Approval of Oregon and California Insurance Commissioners		$ 176.0
Threshold Dividend or Distribution without Approval of Arizona Insurance Commissioner		$ 7.4
Maximum Dividend Percentage		10.00%
Maximum capacity to pay dividend		$ 1.8
Palomar Specialty Reinsurance Company Bermuda Ltd [Member]
Dividend Restrictions [Line Items]
Dividends And Return On Capital Receivable		$ 4.5
Subsidiaries [Member]
Dividend Restrictions [Line Items]
Proceeds from Dividends Received	$ 99.0

X

- Definition

Dividend restrictions.

+ References

No definition available.

+ Details

Name:	plmr_DividendRestrictionsLineItems
Namespace Prefix:	plmr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of dividends and return on capital available to the company.

+ References

No definition available.

+ Details

Name:	plmr_DividendsAndReturnOnCapitalReceivable
Namespace Prefix:	plmr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Maximum capacity to pay dividend.

+ References

No definition available.

+ Details

Name:	plmr_MaximumCapacityToPayDividend
Namespace Prefix:	plmr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Maximum dividend percentage.

+ References

No definition available.

+ Details

Name:	plmr_MaximumDividendPercentage
Namespace Prefix:	plmr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of maximum dividend or distribution that may be made without the prior approval of the Arizona Insurance Commissioner.

+ References

No definition available.

+ Details

Name:	plmr_ThresholdDividendOrDistributionWithoutApprovalOfArizonaInsuranceCommissioner
Namespace Prefix:	plmr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of maximum dividend or distribution that may be made without the prior approval of Oregon and California Insurance Commissioners.

+ References

No definition available.

+ Details

Name:	plmr_ThresholdDividendOrDistributionWithoutApprovalOfOregonAndCaliforniaInsuranceCommissioners
Namespace Prefix:	plmr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Dividends received on equity and other investments during the current period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 16
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-16

+ Details

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

X

- Details

Name:	dei_LegalEntityAxis=plmr_PalomarSpecialtyReinsuranceCompanyBermudaLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: