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Unaudited Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Available for sale securities, amortized cost | $ 21,043,045 | $ 19,708,561
Allowance for credit losses on investments | 58,410 | 2,883
Allowance for credit losses on premiums receivable | 38,170 | 39,958
Allowance for credit losses on reinsurance recoverable | 14,740 | 13,230
Allowance for credit losses on contractholder receivable | $ 3,005 | $ 3,437
Common shares, par value per share | $ 0.0011 | $ 0.0011
Common shares issued (shares) | 586,887,791 | 583,289,850
Common shares held in treasury (shares) | 217,540,976 | 204,365,956
Fixed maturities |  |
Available for sale securities, amortized cost | $ 18,816,372 | $ 17,973,823
Allowance for credit losses on investments | 58,410 | 2,883
Short-term investments |  |
Available for sale securities, amortized cost | 2,226,673 | 1,734,738
Allowance for credit losses on investments | $ 0 | $ 0

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