Intangible Assets and Goodwill (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 1,682	$ 1,943	$ 1,510
IPR&D [Member] | Scenario, Plan [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 44,021
Minimum [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Maximum [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life	15 years