Income Taxes (Provision For (Benefit From) Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ (90)	$ (90)	$ 22
State	646	62	23
Foreign	3,000	1,988	1,471
Total current provision	3,556	1,960	1,516
Deferred
Federal	7,085	(3,449)	(1,650)
State	447	21	(996)
Foreign	(441)	(368)	68
Total deferred provision (benefit)	7,091	(3,796)	(2,578)
Provision for (benefit from) income taxes	$ 10,647	$ (1,836)	$ (1,062)