Subsequent Event (Details) - Subsequent event $ / shares in Units, shares in Millions, $ in Millions	Jan. 07, 2020 USD ($) $ / shares shares
Subsequent Event [Line Items]
Total value	$ 40
Upfront amount due	$ 20
Number of shares Receivable (in shares) | shares	10
Shares receivable, price per share (in USD per share) | $ / shares	$ 2.00
Second milestone payment due	$ 20
Second milestone payment in cash payment due	10
Second milestone payment in investment due	$ 10
Premium on investment prevailing market price (in percentage)	15.00%
Co-promotion agreement, percentage of promotional sales effort responsible for (in percentage)	25.00%
Co-promotion agreement, percentage of net revenue receivable (in percentage)	15.00%
Co-promotion agreement, right to repurchase, amount	$ 200