Subsequent Events (Details) - Subsequent Event $ / shares in Units, $ in Thousands	Oct. 01, 2020 USD ($) claim $ / shares
Pending Litigation | Securities Litigation Merger
Subsequent Event [Line Items]
Number of new claims filed | claim	7
Covis Group S.à r.l.
Subsequent Event [Line Items]
Contract termination fee | $	$ 16,250
AMAG Pharmaceuticals, Inc. | Covis Group S.à r.l.
Subsequent Event [Line Items]
Offer period (minimum)	20 days
Share price (in dollars per share) | $ / shares	$ 13.75