Investments (Non-Cash OTTI Credit Losses Recognized in Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Investments [Abstract]
Balance of credit-related OTTI, Beginning	$ 1,993	$ 2,194	$ 2,043	$ 2,244
Reduction for increases in cash flows expected to be collected	(51)	(51)	(101)	(101)
Balance of credit-related OTTI, Ending	$ 1,942	$ 2,143	$ 1,942	$ 2,143