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v3.26.1

Variable Interest Entity (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Surplus notes outstanding | $ 106 | $ 106

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- Definition Surplus Notes, Outstanding + References No definition available. + Details
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Namespace Prefix: | prch_
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Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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