Financial Income (Expenses), Net - Summary of Financial Income and Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financial Income (Expenses), Net [Abstract]
Interest on bank deposits & other	$ 674	$ 2,041	$ 1,741
Financial income	674	2,041	1,741
Amortization of issuance costs	4,096	0	0
Interest expenses, principally from convertible note	2,017	0	0
Foreign currency transaction losses, net	1,726	2,225	574
Bank and other charges	318	205	197
Financial expenses	(8,157)	(2,430)	(771)
Total	$ (7,483)	$ (389)	$ 970