Analysis of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 241,826	$ 330,392
Difference in depreciation and amortization	39,725	31,563
Research and development tax credits	261,067	201,512
Stock-based compensation	80,193	38,132
Lease liabilities	11,782	10,890
Capitalized inventory	33,366	24,172
Debt discount	35,975	5,875
Capitalized research and development costs	74,886	0
Other	44,022	38,315
Total deferred tax assets	822,842	680,851
Deferred tax liabilities:
Right of use asset	(9,174)	(7,405)
Debt discount	0	0
Total deferred tax liabilities	(9,174)	(7,405)
Valuation allowance	(811,908)	(672,319)
Net deferred tax assets	$ 1,760	$ 1,127