Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2023

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Transfer of Assets and Liabilities Effected in Accordance with Separation Agreements

The transfer of assets and liabilities to Mural was effected through a contribution in accordance with the separation agreement, as summarized below:

(In thousands)	November 15, 2023
ASSETS
Current Assets:
Cash and cash equivalents	$	275,000
Total current assets		275,000
Property, plant and equipment, net		10,096
Right-of-use assets		14,513
Goodwill		7,800
Deferred tax asset		1,799
Total assets	$	309,208
LIABILITIES
Current Liabilities
Operating lease liabilities—short-term	$	6,036
Total current liabilities		6,036
Operating lease liabilities—long-term		9,412
Total liabilities		15,448
Net assets transferred to Mural	$	293,760

Summary of Discontinued Operations

The following table summarizes expenses of the discontinued operations for the years ended December 31, 2023, 2022 and 2021:

	Year Ended December 31,
(In thousands)	2023			2022			2021
Operating expenses from discontinued operations
Cost of goods manufactured	$	39		$	40		$	64
Research and development		116,177			121,140			115,602
Selling, general and administrative		48,587			14,996			11,367
Total operating expenses from discontinued operations		164,803			136,176			127,033
Operating loss from discontinued operations		(164,803	)		(136,176	)		(127,033	)
Income tax benefit from discontinued operations		(1,403	)		(11,061	)		(2,463	)
Net loss and comprehensive loss from discontinued operations	$	(163,400	)	$	(125,115	)	$	(124,570	)

The following table summarizes the assets and liabilities related to Mural that have been classified as assets and liabilities from discontinued operations in our accompanying consolidated balance sheet as of December 31, 2022:

(In thousands)	December 31, 2022
ASSETS
Current Assets:
Prepaid expenses and other current assets	$	2,324
Total current assets		2,324
Right-of-use assets		18,316
Property, plant and equipment, net		10,617
Goodwill		7,800
Deferred tax asset		1,030
Assets from discontinued operations	$	40,087
LIABILITIES
Current Liabilities:
Operating lease liabilities—short-term	$	5,844
Total current liabilities		5,844
Operating lease liability—long-term		13,542
Liabilities related to discontinued operations	$	19,386

Summary of Significant Non-cash Items and Capital Expenditures of Discontinued Operations

The following table summarizes the significant non-cash items and capital expenditures of the discontinued operations that are included in the consolidated statements of cash flows for the years ended December 31, 2023, 2022 and 2021:

	Year Ended December 31,
	2023			2022			2021
	(In thousands)
OPERATING ACTIVITIES:
Depreciation	$	2,319		$	1,539		$	1,474
Share-based compensation expense		8,188			6,577			5,190
Right-of-use assets		3,803			5,909			5,703
Operating lease liabilities		(3,938	)		(5,920	)		(4,758	)
INVESTING ACTIVITIES:
Additions of property, plant and equipment	$	(1,798	)	$	(5,510	)	$	(4,385	)