Unaudited Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available for sale securities, amortized cost	$ 20,650,206	$ 19,708,561
Allowance for credit losses on investments	34,145	2,883
Allowance for credit losses on premiums receivable	39,073	39,958
Allowance for credit losses on reinsurance recoverable	18,483	13,230
Allowance for credit losses on contractholder receivable	$ 3,731	$ 3,437
Common shares, par value per share	$ 0.0011	$ 0.0011
Common shares issued (shares)	586,115,502	583,289,850
Common shares held in treasury (shares)	210,384,611	204,365,956
Fixed maturities
Available for sale securities, amortized cost	$ 18,317,693	$ 17,973,823
Allowance for credit losses on investments	34,145	2,883
Short-term investments
Available for sale securities, amortized cost	2,332,513	1,734,738
Allowance for credit losses on investments	$ 0	$ 0

Amount of allowance for credit loss on contractholder receivables.

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Face amount or stated value per share of common stock.

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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The carrying value as of the balance sheet date of the estimated valuation allowance to reduce gross premiums receivable to net realizable value.

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Amount of allowance for credit loss on reinsurance recoverable.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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