CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Preferred Stock
Issuance costs	$ 400		$ 400
Common Stock \| Incyte
Issuance costs				$ 100
Common Stock \| Follow On Offering
Issuance costs	$ 4,600		$ 4,600	3,300
Common Stock \| At The Market
Issuance costs		$ 600		$ 600