Collaboration and License Agreements - Sale of Stock (Details) - Private Placement $ / shares in Units, $ in Millions	Jul. 13, 2020 USD ($) $ / shares shares
Sale of Stock
Stock issued (in shares) | shares	1,035,519
Share price (in dollars per share) | $ / shares	$ 96.57
Purchase consideration	$ 100.0
Issuance of common stock	79.3
Share purchase consideration, premium	$ 20.7