Acquisitions - Asset Acquisition (Details) - USD ($) $ in Thousands				3 Months Ended
	Mar. 31, 2020	Mar. 12, 2020	Dec. 31, 2019	Mar. 31, 2021	Mar. 31, 2020
Business Acquisition [Line Items]
Consideration transferred				$ 0	$ 3,297
IPR&D
Business Acquisition [Line Items]
Consideration transferred	$ 2,100	$ 1,200	$ 100
Future payments for asset acquisition	$ 700	$ 300
Expected repayment time period	12 months	18 months
Payments for asset acquisition	$ 2,900	$ 1,500