Investments - Disposition of Fixed Income and Equity Securities (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
SALES \| Equity Securities
Summary of the disposition of fixed income and equity securities
Proceeds From Sales	$ 53,525	$ 152,170
Gross Realized Gains	19,244	50,656
Gross Realized Losses	(15)	(1,784)
Net Realized Gain (Loss)	19,229	48,872
SALES \| Fixed Income Securities \| Available for sale securities
Summary of the disposition of fixed income and equity securities
Proceeds From Sales	19,390	31,928
Gross Realized Gains	215	1,252
Gross Realized Losses	(432)	(46)
Net Realized Gain (Loss)	(217)	1,206
Calls And Maturities Of Marketable Securities \| Fixed Income Securities \| Available for sale securities
Summary of the disposition of fixed income and equity securities
Proceeds From Sales	137,499	204,960
Gross Realized Gains	76	406
Gross Realized Losses	(55)	(63)
Net Realized Gain (Loss)	$ 21	$ 343

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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The difference between the carrying value and the sale price of an investment. A loss would be recognized when the sale price of the investment is less than the carrying value of the investment. This element refers to the Loss included in earnings and not to the cash proceeds of the sale.

+ References

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Amount of realized gain (loss) on investment in marketable security, excluding other-than-temporary impairment (OTTI).

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The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.

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