Equity Method Investments (Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Roll Forward]
Beginning balance	$ 2,044	$ 1,431
Capital contributions		859
Derecognition of Equity Method Investment	(746)	0
Loss on equity method investments	(1,298)	(246)	$ (384)
Ending balance	$ 0	$ 2,044	$ 1,431