Commitments - Summary of Lease Arrangements of Company Facilities (Detail)	6 Months Ended
	Jun. 30, 2024 ft²
Vacaville, CA [Member] | Manufacturing [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Approximate Square Feet	24,634
Lease Expiration Term	Lease expires 2028 (with an option to renew for an additional five years)
Lease expiration year	2028
Lease renewal term	5 years
Cupertino, CA [Member] | Office, Laboratory and Manufacturing [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Lease expiration year	2027
Lease renewal term	5 years
Cupertino, CA [Member] | Office, Laboratory and Manufacturing [Member] | Lease Amendment [Member]
Property Subject To Or Available For Operating Lease [Line Items]
Approximate Square Feet	30,149
Lease Expiration Term	Lease expires 2027 (with an option to renew for an additional five years)