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CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED (Parenthetical) - USD ($) shares in Millions | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Amortized cost, fixed maturities | $ 132,400,000 | $ 129,500,000
Amortized cost, short term investments | 500,000 | 0
Allowance for premiums receivable | 3,800,000 | 5,400,000
Allowance for credit loss | $ 100,000 | $ 200,000
Preferred stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Preferred stock, shares authorized (in shares) | 100.0 | 100.0
Preferred stock, shares issued (in shares) | 14.1 | 14.1
Preferred stock, shares outstanding (in shares) | 14.1 | 14.1
Preferred stock, liquidation preference | $ 126,500,000 | $ 126,500,000
Class A Shares |  |
Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Common stock, shares authorized (in shares) | 1,000.0 | 1,000.0
Common stock, shares issued (in shares) | 154.9 | 142.9
Common stock, shares outstanding (in shares) | 154.9 | 142.9
Class B Shares |  |
Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Common stock, shares authorized (in shares) | 269.0 | 269.0
Common stock, shares issued (in shares) | 99.5 | 109.9
Common stock, shares outstanding (in shares) | 99.5 | 109.9

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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