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Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Investments: |  |
Fixed maturities available-for-sale, cost | $ 1,362,404 | $ 1,343,755
Limited partnership | 64,732 | 56,038
Due premiums, allowance for doubtful accounts | $ 338 | $ 111
Common Stock Class A [Member] |  |
Liabilities and Stockholders' Equity |  |
Common stock, par value (in dollars per share) | $ 0 | $ 0
Common stock, shares authorized (in shares) | 100,000,000 | 100,000,000
Common stock, shares issued (in shares) | 53,742,067 | 53,170,413
Common stock, shares outstanding (in shares) | 53,742,067 | 53,170,413
Common stock, shares in treasury (in shares) | 3,527,821 | 3,135,738
Common Stock Class B [Member] |  |
Liabilities and Stockholders' Equity |  |
Common stock, par value (in dollars per share) | $ 0 | $ 0
Common stock, shares authorized (in shares) | 2,000,000 | 2,000,000
Common stock, shares issued (in shares) | 1,001,714 | 1,001,714
Common stock, shares outstanding (in shares) | 1,001,714 | 1,001,714
Common stock, shares in treasury (in shares) | 1,001,714 | 1,001,714

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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