License and Collaboration Agreements (Details) - product_candidates	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2019
License And Collaboration Agreements [Line Items]
License agreement, exclusivity period		12 years
Termination of agreement notice period		90 days
Number of sterile injectable product candidates	5
Minimum
License And Collaboration Agreements [Line Items]
Royalty rate on net sales		5.00%
Maximum
License And Collaboration Agreements [Line Items]
Royalty rate on net sales		15.00%