Cash Equivalents and Marketable Securities - Schedule of Gross Unrealized Losses and Fair Value by Investment Category and Age (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 22,810	$ 13,022
Less than 12 Months, Unrealized Loss	(147)	(9)
Total, Fair Value	22,810	13,022
Total, Unrealized Loss	(147)	(9)
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Less than 12 Months, Fair Value	22,810	13,022
Less than 12 Months, Unrealized Loss	(147)	(9)
Total, Fair Value	22,810	13,022
Total, Unrealized Loss	$ (147)	$ (9)