Licensed rights and other intangible assets - Summary of Information about License Rights and Other Intangible Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 47,854	$ 45,674
Finite-Lived Intangible Assets, Accumulated Amortization	7,868	4,552
Finite-Lived Intangible Assets, Net	39,986	41,122
License Rights and Intangible Assets, Net, Gross Carrying Amount (Excluding Goodwill)	48,186	45,997
License rights and other intangible assets, net	40,318	41,445
License rights [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	40,000	40,000
Finite-Lived Intangible Assets, Accumulated Amortization	6,826	3,803
Finite-Lived Intangible Assets, Net	33,174	36,197
Hormone therapy drug patents [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	5,834	4,045
Finite-Lived Intangible Assets, Accumulated Amortization	1,042	749
Finite-Lived Intangible Assets, Net	4,792	3,296
Hormone therapy drug candidate patents - applied and pending [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	2,020	1,629
Finite-Lived Intangible Assets, Net	2,020	1,629
Trademarks/trade name rights [Member]
Finite Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets, Gross Carrying Amount and Net	$ 332	$ 323