Income Taxes (Gross Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of period	$ 2,860	$ 1,280
Additions based on tax positions related to prior years	2,774	1,172
Decreases based on settlements with tax authorities	(803)	0
Additions based on tax positions related to the current year	5,628	408
Balance at end of period	$ 10,459	$ 2,860