Licensed rights and other intangible assets - Summary of Information about License Rights and Other Intangible Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 46,328	$ 45,674
Finite-Lived Intangible Assets, Accumulated Amortization	7,055	4,552
Finite-Lived Intangible Assets, Net	39,273	41,122
License Rights and Intangible Assets, Net, Gross Carrying Amount (Excluding Goodwill)	46,672	45,997
License rights and other intangible assets, net	39,617	41,445
Trademarks/trade name rights [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets, Gross Carrying Amount and Net	344	323
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	6,070	3,803
Finite-Lived Intangible Assets, Net	33,930	36,197
Hormone therapy drug patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	4,732	4,045
Finite-Lived Intangible Assets, Accumulated Amortization	985	749
Finite-Lived Intangible Assets, Net	3,747	3,296
Hormone therapy drug candidate patents - applied and pending [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	1,596	1,629
Finite-Lived Intangible Assets, Net	$ 1,596	$ 1,629

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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