CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Preferred Stock
Issuance costs		$ 400
Common Stock \| Incyte
Issuance costs			$ 100
Common Stock \| Follow On Offering
Issuance costs		$ 4,600	3,300
Common Stock \| At The Market
Issuance costs	$ 10		$ 600