Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Abstract]
Balance at January 1	$ 43,037	$ 43,055
Decreases as a result of statute expirations	0	(18)
Balance at December 31	$ 43,037	$ 43,037