Basis of presentation, principles of consolidation and significant accounting policies (Tables)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Collaborative Arrangements, Nature Of Payment And Presentation

In arrangements where the Company does not deem its collaborator to be its customer, payments to and from its collaborator are presented in the condensed consolidated statements of operations based on the nature of the payments, as summarized in the table and further described below.

Nature of Payment	Statement of Operations Presentation
The Company's share of profits in connection with commercialization of products	Collaborative arrangement revenue
The Company's share of losses in connection with commercialization of products	Share of collaboration loss
Net reimbursement of the Company's research and development expenses	Collaborative arrangement revenue
Net reimbursement of the collaborator's research and development expenses	Research and development expense