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Investments (Investment Income) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Investments [Line Items] |  |  |
Total investment income | $ 136,124 | $ 140,586 | $ 146,868
Less: Investment expense | (6,397) | (5,728) | (5,605)
Net investment income | 129,727 | 134,858 | 141,263
Fixed maturity securities |  |  |
Investments [Line Items] |  |  |
Total investment income | 100,001 | 100,166 | 102,254
Equity securities |  |  |
Investments [Line Items] |  |  |
Total investment income | 35,064 | 37,598 | 32,233
Short-term investments |  |  |
Investments [Line Items] |  |  |
Total investment income | $ 1,059 | $ 2,822 | $ 12,381

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- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1-5) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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