Subsequent Event (Details) - Forecast - Progenics Pharmaceuticals, Inc.	3 Months Ended
Mar. 31, 2020 shares
Subsequent Event [Line Items]
Common stock portion, number of stock for each share of Progenics common stock (in shares)	0.2502
Ownership percentage	35.00%
Premium on closing price, percentage	21.50%

Percentage of voting equity interests acquired at the acquisition date in the business combination.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant