Investments - NANTibody - Additional Information (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Schedule Of Equity Method Investments [Line Items]
Net income (loss)	$ (219,477,000)	$ (40,540,000)	$ (166,699,000)	$ 2,418,000	$ (260,017,000)	$ (164,281,000)
Current assets of equity method investment	196,048,000				196,048,000		$ 172,989,000
Current liabilities of equity method investment	145,321,000				145,321,000		139,453,000
NANTibody
Schedule Of Equity Method Investments [Line Items]
Equity investments	$ 0				$ 0
Net income (loss)		300,000
Current assets of equity method investment		2,400,000
Current liabilities of equity method investment		10,500,000
Noncurrent assets of equity method investment		$ 100,000
Noncurrent liabilities of equity method investment							$ 0