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Schedule VI - Supplementary Information Concerning Property-Casualty Insurance Operations | 12 Months Ended
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Dec. 31, 2024
SEC Schedule, 12-18, Supplemental Information, Property-Casualty Insurance Underwriters [Abstract] |
Schedule VI - Supplementary Information Concerning Property-Casualty Insurance Operations | Schedule VI W. R. Berkley Corporation and Subsidiaries Supplementary Information Concerning Property-Casualty Insurance Operations Years Ended December 31, 2024, 2023 and 2022
(In thousands) | 2024 |  | 2023 |  | 2022
Deferred policy acquisition costs | $ | 951,728 |  |  | $ | 861,609 |  |  | $ | 763,486 |
Reserves for losses and loss expenses | 20,368,030 |  |  | 18,739,652 |  |  | 17,011,223 |
Unearned premiums | 6,375,112 |  |  | 5,922,326 |  |  | 5,297,654 |
Net premiums earned | 11,548,485 |  |  | 10,400,687 |  |  | 9,561,429 |
Net investment income | 1,333,161 |  |  | 1,052,835 |  |  | 779,185 |
Losses and loss expenses incurred: |  |  |  |  |
Current year | 7,083,999 |  |  | 6,311,780 |  |  | 5,774,713 |
Prior years | 14,350 |  |  | 29,681 |  |  | 54,511 |
Loss reserve discount accretion | 33,246 |  |  | 30,681 |  |  | 32,526 |
Amortization of deferred policy acquisition costs | 1,219,849 |  |  | 1,038,975 |  |  | 1,038,903 |
Paid losses and loss expenses | 5,484,430 |  |  | 4,981,610 |  |  | 4,347,910 |
Net premiums written | 11,972,096 |  |  | 10,954,467 |  |  | 10,004,070 |
___________________ See Report of Independent Registered Public Accounting Firm.

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- Definition The entire disclosure of supplemental information for registrant, its subsidiary and 50-percent-or-less-owned equity basis investee, with liability for property-casualty insurance claim. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 18 -Paragraph Column A -Subparagraph (c) -Footnote 3 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 18 -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18(Column A)(c)(Footnote 3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477965/944-235-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477965/944-235-S99-3 + Details
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