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License and Collaboration Agreements (Details) - USD ($)		1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Nov. 05, 2015	Apr. 30, 2017	Feb. 28, 2017	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2015
License and Collaboration Agreements
R&D expense				$ 15,964,000	$ 7,873,000	$ 27,139,000	$ 15,326,000
Licensing Agreement | Scripps Research Institute
License and Collaboration Agreements
R&D expense								$ 10,000
Annual licensing fee						25,000
Milestone payments						$ 0
Early termination notice period						90 days
Licensing Agreement | Vernalis (R&D) Limited
License and Collaboration Agreements
R&D expense	$ 1,000,000
Milestone payments			$ 3,000,000			$ 0	0
Early termination notice period						90 days
Licensing Agreement | Monash University
License and Collaboration Agreements
R&D expense		$ 275,000
Annual licensing fee		$ 25,000
Milestone payments						$ 0	$ 0
Early termination notice period						30 days
Licensing Agreement | Aggregate potential milestone payments | Scripps Research Institute
License and Collaboration Agreements
Milestone payments						$ 2,500,000
Licensing Agreement | Aggregate potential milestone payments | Vernalis (R&D) Limited
License and Collaboration Agreements
Milestone payments						220,000,000
Licensing Agreement | Aggregate potential milestone payments | Monash University
License and Collaboration Agreements
Milestone payments						$ 45,100,000

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The amount of costs incurred under a research and development arrangement accounted for as a contract to perform research and development for others.

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