OTHER BALANCE SHEET DETAILS - Schedule of Inventory (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Inventory [Line Items]
Raw materials	$ 14,754,000	$ 63,460,000
Work in process	100,942,000	16,149,000
Finished goods	7,005,000	12,693,000
Total inventory	122,701,000	92,302,000
Capitalized inventory	7,100,000	0
Other Assets
Inventory [Line Items]
Long-term inventory	$ 36,300,000	$ 17,100,000