Subsequent Events (Details) - Subsequent Event - Kuros Biosciences AG, Kuros US LLC and Kuros Royalty Fund (US) LLC - Royalty Purchase Agreement $ in Millions	Jul. 14, 2021 USD ($)
Subsequent Event [Line Items]
Royalties entity has right to receive (as a percent)	100.00%
Pre-commercial milestone payments	$ 25.0
Upfront payment	$ 7.0

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration