Commitments and Contingencies	3 Months Ended
Mar. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company has entered into customary contractual arrangements and letters of intent in preparation for and in support of operations in the normal course of business. As of March 31, 2025, the Company had approximately $89.1 million of obligations under these agreements related to active pharmaceutical ingredient, which is expected to be paid through March 2027. The Company has a Research, Development and Commercialization Agreement with Hoffmann-La Roche (“Roche”) which grants the Company a sole and exclusive license to develop, use, sell, offer for sale and import any Licensed Product as defined by the agreement. The agreement requires future milestone payments to Roche. In March 2024, upon receiving FDA approval of Rezdiffra, a milestone was achieved and $5.0 million became due to Roche. Remaining milestones under the agreement total $3.0 million and are payable upon the Company achieving specified objectives related to future regulatory approval in Europe of resmetirom or a product developed from resmetirom. Furthermore, a tiered single-digit royalty is payable on net sales of resmetirom or a product developed from resmetirom, subject to certain reductions. The Company began accruing for royalty payments following its commercial launch of Rezdiffra in April 2024. In 2019, the Company entered into an operating lease for office space located in West Conshohocken, Pennsylvania (the “Office Lease”), which was later updated by three amendments entered into from 2019 to 2022. In May 2023, the Company entered into the Fourth Amendment to the Office Lease, which did not have a financial impact. In August 2023, the Company entered into the Fifth Amendment to the Office Lease (the “Fifth Lease Amendment”). The Fifth Lease Amendment extended the term of the Office Lease through November 2026. As a result of the Fifth Lease Amendment, an incremental $1.6 million right-of-use asset and lease liabilities were recorded during the year ended December 31, 2023. In April 2024 and May 2024, the Company entered into the Sixth Amendment and the Seventh Amendment to the Office Lease, respectively, leasing additional office space in the same premises under the Office Lease. The lease for the additional office space commenced in September 2024 and resulted in an incremental $1.2 million right-of-use asset and lease liability being recorded for the quarter ended March 31, 2025. In August 2024, the Company entered into the Eighth (the “Eighth Lease Amendment”) and in October 2024, the Company entered into the Ninth Amendment (the “Ninth Lease Amendment”) to the Office Lease further expanding the amount of office space in the same premises. The lease for the additional office space under the Eighth Lease Amendment and the Ninth Lease Amendment commenced in December 2024 and resulted in an incremental $0.2 million right-of-use asset and lease liability recorded.

The Company has entered into customary contractual arrangements and letters of intent in preparation for and in support of operations in the normal course of business. As of March 31, 2025, the Company had approximately $89.1 million of obligations under these agreements related to active pharmaceutical ingredient, which is expected to be paid through March 2027.

The Company has a Research, Development and Commercialization Agreement with Hoffmann-La Roche (“Roche”) which grants the Company a sole and exclusive license to develop, use, sell, offer for sale and import any Licensed Product as defined by the agreement.

The agreement requires future milestone payments to Roche. In March 2024, upon receiving FDA approval of Rezdiffra, a milestone was achieved and $5.0 million became due to Roche. Remaining milestones under the agreement total $3.0 million and are payable upon the Company achieving specified objectives related to future regulatory approval in Europe of resmetirom or a product developed from resmetirom. Furthermore, a tiered single-digit royalty is payable on net sales of resmetirom or a product developed from resmetirom, subject to certain reductions. The Company began accruing for royalty payments following its commercial launch of Rezdiffra in April 2024.

In 2019, the Company entered into an operating lease for office space located in West Conshohocken, Pennsylvania (the “Office Lease”), which was later updated by three amendments entered into from 2019 to 2022. In May 2023, the Company entered into the Fourth Amendment to the Office Lease, which did not have a financial impact. In August 2023, the Company entered into the Fifth Amendment to the Office Lease (the “Fifth Lease Amendment”). The Fifth Lease Amendment extended the term of the Office Lease through November 2026. As a result of the Fifth Lease Amendment, an incremental $1.6 million right-of-use asset and lease liabilities were recorded during the year ended December 31, 2023.

In April 2024 and May 2024, the Company entered into the Sixth Amendment and the Seventh Amendment to the Office Lease, respectively, leasing additional office space in the same premises under the Office Lease. The lease for the additional office space commenced in September 2024 and resulted in an incremental $1.2 million right-of-use asset and lease liability being recorded for the quarter ended March 31, 2025. In August 2024, the Company entered into the Eighth (the “Eighth Lease Amendment”) and in October 2024, the Company entered into the Ninth Amendment (the “Ninth Lease Amendment”) to the Office Lease further expanding the amount of office space in the same premises. The lease for the additional office space under the Eighth Lease Amendment and the Ninth Lease Amendment commenced in December 2024 and resulted in an incremental $0.2 million right-of-use asset and lease liability recorded.