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Schedule I - Summary of Investments - Other Than Investments in Related Parties | 12 Months Ended
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Dec. 31, 2021
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 |
Types of investment |  |  |  |  |  |
($ in thousands) |  | Amortized Cost or Cost |  | Fair Value |  | Carrying Amount
Fixed income securities: |  |  |  |  |  |
Held-to-maturity: |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 3,442 |  |  | 3,576 |  |  | 3,440 |
Public utilities |  | 1,345 |  |  | 1,368 |  |  | 1,352 |
All other corporate securities |  | 24,067 |  |  | 24,516 |  |  | 23,993 |
Total fixed income securities, held-to-maturity |  | 28,854 |  |  | 29,460 |  |  | 28,785 |
Available-for-sale: |  |  |  |  |  |
U.S. government and government agencies |  | 127,974 |  |  | 130,458 |  |  | 130,458 |
Foreign government |  | 15,420 |  |  | 15,860 |  |  | 15,860 |
Obligations of states and political subdivisions |  | 1,121,422 |  |  | 1,189,308 |  |  | 1,189,308 |
Public utilities |  | 119,980 |  |  | 122,329 |  |  | 122,329 |
All other corporate securities |  | 2,358,369 |  |  | 2,451,274 |  |  | 2,451,274 |
Collateralized loan obligation securities and other asset-backed securities |  | 1,343,687 |  |  | 1,350,814 |  |  | 1,350,814 |
Residential mortgage-backed securities |  | 756,280 |  |  | 776,252 |  |  | 776,252 |
Commercial mortgage-backed securities |  | 647,621 |  |  | 673,681 |  |  | 673,681 |
Total fixed income securities, available-for-sale |  | 6,490,753 |  |  | 6,709,976 |  |  | 6,709,976 |
Equity securities: |  |  |  |  |  |
Common stock: |  |  |  |  |  |
Banks, trusts and insurance companies |  | 45,537 |  |  | 44,086 |  |  | 44,086 |
Industrial, miscellaneous and all other |  | 261,343 |  |  | 289,363 |  |  | 289,363 |
Nonredeemable preferred stock |  | 1,960 |  |  | 2,088 |  |  | 2,088 |
Total equity securities |  | 308,840 |  |  | 335,537 |  |  | 335,537 |
Commercial mortgage loans |  | 95,795 |  |  |  |  | 95,795 |
Short-term investments |  | 447,862 |  |  |  |  | 447,863 |
Other investments |  | 409,032 |  |  |  |  | 409,032 |
Total investments |  | $ | 7,781,136 |  |  |  |  | 8,026,988 |
See accompanying Report of Independent Registered Public Accounting Firm in Item 8. "Financial Statements and Supplementary Data." of this Form 10-K.

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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 http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010 + Details
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