Intangible Asset and Goodwill	3 Months Ended
Mar. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible asset and goodwill	4. Intangible asset and goodwill As of March 31, 2021, the Company had an intangible asset of $59.2 million, which consists of in-process research and development (IPR&D) acquired in 2019 from the Cobalt acquisition. The IPR&D is classified as indefinite-lived until the successful completion of the associated research and development technology, at which point it becomes a finite-lived asset that will be amortized over its estimated useful life. As of March 31, 2021, there was no amortization of the intangible asset. As of March 31, 2021, the Company had goodwill of $140.6 million. The goodwill represents the excess of the purchase price over the estimated fair value of the net assets acquired from the Cobalt acquisition in 2019. There were no impairments of the intangible asset or goodwill since the acquisition.

Intangible Asset and Goodwill

3 Months Ended

Mar. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

4. Intangible asset and goodwill

As of March 31, 2021, the Company had an intangible asset of $59.2 million, which consists of in-process research and development (IPR&D) acquired in 2019 from the Cobalt acquisition. The IPR&D is classified as indefinite-lived until the successful completion of the associated research and development technology, at which point it becomes a finite-lived asset that will be amortized over its estimated useful life. As of March 31, 2021, there was no amortization of the intangible asset. As of March 31, 2021, the Company had goodwill of $140.6 million. The goodwill represents the excess of the purchase price over the estimated fair value of the net assets acquired from the Cobalt acquisition in 2019. There were no impairments of the intangible asset or goodwill since the acquisition.