Subsequent Event (Details) - 1 months ended Oct. 31, 2020 - Subsequent Events kr / shares in Units, shares in Millions, kr in Millions, $ in Millions	USD ($) shares	USD ($) kr / shares	SEK (kr)
Subsequent Event [Line Items]
Investment to be made	$ 7.0	$ 7.0	kr 61.4
Subscription price per share (in SEK per share) | kr / shares		$ 2.09
Percentage of average volume weighted price	130.00%
Number of trading days	10 days
Number of new warrants subscribed | shares	14.7
Subscription period for warrants	5 years
Subscription price per warrant (in SEK per share) | kr / shares		$ 3.14
Maximum
Subsequent Event [Line Items]
Number of shares subscribed (in shares) | shares	29.4
BioInvent International AB
Subsequent Event [Line Items]
Upfront payment | $	$ 5.0
Development and commercial milestone payments payable | $	$ 83.0	$ 83.0