Summary of Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2022
Accounting Policies [Abstract]
Asset acquisitions	Asset acquisitions At the time of acquisition, the Company determines if a transaction should be accounted for as a business combination or acquisition of assets. The Company measures and recognizes asset acquisitions that are not deemed to be business combinations based on the cost to acquire the assets, which includes transaction costs, and the consideration is allocated to the items acquired based on a relative fair value methodology. Goodwill is not recognized in asset acquisitions. In an asset acquisition, the cost allocated to acquire in-process research and development with no alternative future use is charged to research and development expense at the acquisition date.
Contingent Consideration	Contingent consideration The Company accounts for contingent consideration identified in an asset acquisition, that is payable in cash and does not meet the definition of a derivative under Accounting Standard Codification (“ASC”) 815, Derivatives and Hedging, when the contingency is resolved and the consideration is paid or becomes payable. The Company accounts for contingent consideration identified in an asset acquisition that is settled in shares of common stock under ASC 480, Distinguishing Liabilities from Equity (“ASC 480”). The contingent consideration liability will be recorded at fair value at the end of each reporting period with changes in estimated fair values recorded in other (expense) income in the condensed consolidated statements of operations and comprehensive loss. The estimated fair value of the contingent consideration liability related to the Rewrite acquisition (see Notes 4 and 9) is determined based on a probability adjusted discounted cash flow model that includes significant estimates and assumptions pertaining to research and development. Significant changes in any of the probabilities of success or in the probabilities as to the periods in which the milestone would be achieved would result in a significantly higher or lower fair value measurement. The Company will continue to adjust the liability for changes in fair value until the obligation is settled or the research is abandoned.

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2022

At the time of acquisition, the Company determines if a transaction should be accounted for as a business combination or acquisition of assets. The Company measures and recognizes asset acquisitions that are not deemed to be business combinations based on the cost to acquire the assets, which includes transaction costs, and the consideration is allocated to the items acquired based on a relative fair value methodology. Goodwill is not recognized in asset acquisitions. In an asset acquisition, the cost allocated to acquire in-process research and development with no alternative future use is charged to research and development expense at the acquisition date.

Contingent Consideration

Contingent consideration

The Company accounts for contingent consideration identified in an asset acquisition, that is payable in cash and does not meet the definition of a derivative under Accounting Standard Codification (“ASC”) 815, Derivatives and Hedging, when the contingency is resolved and the consideration is paid or becomes payable.

The Company accounts for contingent consideration identified in an asset acquisition that is settled in shares of common stock under ASC 480, Distinguishing Liabilities from Equity (“ASC 480”). The contingent consideration liability will be recorded at fair value at the end of each reporting period with changes in estimated fair values recorded in other (expense) income in the condensed consolidated statements of operations and comprehensive loss.

The estimated fair value of the contingent consideration liability related to the Rewrite acquisition (see Notes 4 and 9) is determined based on a probability adjusted discounted cash flow model that includes significant estimates and assumptions pertaining to research and development. Significant changes in any of the probabilities of success or in the probabilities as to the periods in which the milestone would be achieved would result in a significantly higher or lower fair value measurement. The Company will continue to adjust the liability for changes in fair value until the obligation is settled or the research is abandoned.