Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Intangible Assets

The gross carrying amounts and net book value of intangible assets were as follows (in thousands):

	March 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Book Value
Intangible assets with finite lives:
Acquired license agreement	$	26,685	$	3,930	$	22,755
In-place lease		1,433		334		1,099
Total intangible assets with finite lives		28,118		4,264		23,854
Acquired in-process research & development (‟IPR&Dˮ) assets		36,550		—		36,550
Total intangible and acquired IPR&D assets	$	64,668	$	4,264	$	60,404

	December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Net Book Value
Intangible assets with finite lives:
Acquired license agreement	$	26,685	$	3,538	$	23,147
In-place lease		1,433		293		1,140
Total intangible assets with finite lives		28,118		3,831		24,287
Acquired IPR&D assets		36,550		—		36,550
Total intangible and acquired IPR&D assets	$	64,668	$	3,831	$	60,837

Schedule of Finite-Lived Intangible Assets Estimated Future Amortization Expense

Based on finite-lived intangible assets recorded as of March 31, 2023, the estimated future amortization expense for the next five years is as follows (in thousands):

Year Ending December 31,	Estimated Amortization Expense
2023 (remaining nine months)	$	1,299
2024		1,733
2025		1,733
2026		1,733
2027		1,733
Thereafter		15,623