Sale of Future Royalties (Tables)

12 Months Ended

Dec. 31, 2021

Other Liabilities Disclosure [Abstract]

Schedule of Royalty Transaction Activity

The following table shows the activity within the liability account for the year ended December 31, 2021:

(in thousands)	December 31, 2021
Liability related to sale of future royalties - beginning balance	$	—
Proceeds from sale of future royalties	250,000
Issuance costs related to the sale of future royalties	(357)
Amortization of issuance costs	7
Non-cash interest expense recognized	1,443
Liability related to sale of future royalties - ending balance	$	251,093