Commitment and Contingencies - Narrative (Details) - USD ($) $ in Thousands	2 Months Ended	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Rent expense		$ 233	$ 209
Rental income from noncancelable sublease		45
Future minimum rental payments to be received under sublease	$ 171	171
Purchase Commitment, Commitment To Acquire Equipment And Services	4,900	4,900
Purchase Commitment, Equipment Purchased	3,600
Unfunded commitment	$ 1,300	$ 1,300