Credit Losses	6 Months Ended
Credit Losses	Jun. 30, 2025
Credit Loss [Abstract]
Credit Loss, Financial Instrument	Credit Losses Credit losses on financial assets measured at amortized cost, primarily the Company's reinsurance recoverables and accounts and notes receivable, are recognized based on estimated losses expected to occur over the life of the asset. The expected credit losses, and subsequent adjustment to such losses, are recorded through an allowance account that is deducted from the amortized cost basis of the financial asset, with the net carrying value of the asset presented in the consolidated balance sheets. The Company's credit allowance was comprised of $22.5 and $22.0 related to reinsurance recoverables as of June 30, 2025 and December 31, 2024, respectively, and $31.0 and $30.2 related to accounts and notes receivable as of June 30, 2025 and December 31, 2024, respectively. The Company's evaluation of credit losses on available for sale fixed income securities is discussed further in Note 2. The Company is not exposed to material concentrations of credit risks as to any one issuer of fixed income securities. Refer to additional discussion of credit risk in the Company's 2024 Annual Report on Form 10-K under Item 1A - Risk Factors.

The entire disclosure for credit loss on financial instrument measured at amortized cost basis, net investment in lease, off-balance sheet credit exposure, and available-for-sale debt security.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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OLD REPUBLIC INTERNATIONAL CORP 10-Q