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Schedule I - Summary of Investments-Other Than Investments in Related Parties | 12 Months Ended
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Dec. 31, 2022
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract] |
Schedule I - Summary of Investments-Other Than Investments in Related Parties | Schedule I—Summary of Investments—Other Than Investments in Related Parties December 31, 2022
Type of Investment (In thousands) |  | Amortized Cost |  | Fair Value |  | Amount at which shown in the Balance Sheet
Fixed maturities: |  |  |  |  |  |
Bonds: |  |  |  |  |  |
United States Government and government agencies and authorities |  | $ | 1,416,257 |  |  | $ | 1,273,844 |  |  | $ | 1,273,844 |
States, municipalities and political subdivisions |  | 661,934 |  |  | 602,690 |  |  | 602,690 |
Residential and commercial mortgage securities |  | 577,915 |  |  | 511,824 |  |  | 511,824 |
Asset-backed securities |  | 660,345 |  |  | 624,561 |  |  | 624,561 |
Foreign government and agency securities |  | 69,651 |  |  | 62,399 |  |  | 62,399 |
All other corporate bonds |  | 1,546,472 |  |  | 1,414,280 |  |  | 1,414,280 |
Total fixed maturities |  | 4,932,574 |  |  | 4,489,598 |  |  | 4,489,598 |
Short-term investments |  | 252,282 |  |  | 252,027 |  |  | 252,027 |
Other invested assets |  | 257,941 |  |  | 257,941 |  |  | 257,941 |
Total investments |  | $ | 5,442,797 |  |  | $ | 4,999,566 |  |  | $ | 4,999,566 |

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- Definition The entire disclosure of information about investment held by insurance company, excluding investment in related party. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 15 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 7 -Subparagraph (SX 210.12-15) -URI https://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010 + Details
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