Subsequent Events (Details) - Subsequent Event - USD ($) $ in Millions				1 Months Ended
	Mar. 31, 2021	Aug. 06, 2020	Jul. 14, 2020	Jul. 31, 2020
Subsequent Event [Line Items]
Agreement termination payment		$ 12.5
Option period to third party supplier to acquire study		9 months
Settlement awarded to other party			$ 17.4
Ciraparantag
Subsequent Event [Line Items]
Potential milestone proceeds from collaborative arrangement payable to equity holders				$ 40.0
Norgine B.V. | Ciraparantag
Subsequent Event [Line Items]
Proceeds related to collaborative arrangement				$ 30.0
Recovery of direct costs				33.00%
Norgine B.V. | Ciraparantag | Maximum | Regulatory Milestone Achievement
Subsequent Event [Line Items]
Potential milestone proceeds from collaborative arrangement				$ 70.0
Norgine B.V. | Ciraparantag | Maximum | Sales Milestones Achievement
Subsequent Event [Line Items]
Potential milestone proceeds from collaborative arrangement				190.0
Palatin Technologies, Inc. | Vyleesi Products
Subsequent Event [Line Items]
Early contract termination fees				$ 12.0
Palatin Technologies, Inc. | Vyleesi Products | Forecast
Subsequent Event [Line Items]
Early contract termination fees	$ 4.3