COMMITMENTS AND CONTINGENCIES - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) ft²	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Oct. 31, 2021 ft²	Oct. 01, 2021 USD ($)	Feb. 01, 2021 USD ($)	Jan. 31, 2021 USD ($) ft²	Jan. 29, 2021 USD ($)	May 31, 2020 USD ($) ft²
Commitments And Contingencies [Line Items]
Lease agreement, extendable lease term				5 years
Operating lease, payments | $	$ 10,100	$ 6,900	$ 6,400
Operating lease, expense | $	$ 11,000	$ 10,800	$ 10,400
Operating lease, weighted average remaining lease term	7 years
Operating lease, weighted average discount rate, percent	5.60%
License obligations | $	$ 600
Lonza Netherlands, B.V.
Commitments And Contingencies [Line Items]
Contractual obligation | $	$ 7,500
Minimum
Commitments And Contingencies [Line Items]
Lease agreement, extendable lease term	5 years
Maximum
Commitments And Contingencies [Line Items]
Lease agreement, extendable lease term	10 years
Richmond, California
Commitments And Contingencies [Line Items]
Lease not yet commenced, area of real estate | ft²							5,000		8,500
Lessee operating lease, lease not yet commenced amount | $					$ 9,100	$ 700	$ 900		$ 1,300
Reimbursement, tenant improvement allowance | $					$ 2,600
Richmond, California | November 1, 2021 through August 31, 2031
Commitments And Contingencies [Line Items]
Area of space leased (in sqft) | ft²				7,997
Valbonne, France
Commitments And Contingencies [Line Items]
Lease not yet commenced, area of real estate | ft²							5,800
Lessee, operating lease, amount | $							$ 800	$ 600
Office And Laboratory | Brisbane, California
Commitments And Contingencies [Line Items]
Area of space leased (in sqft) | ft²	87,700
Office And Laboratory | Richmond, California | Expires in August 2031
Commitments And Contingencies [Line Items]
Area of space leased (in sqft) | ft²	59,485
Office And Laboratory | Richmond, California | Expires in August 2026
Commitments And Contingencies [Line Items]
Area of space leased (in sqft) | ft²	7,700
Research and Office Space | Valbonne, France
Commitments And Contingencies [Line Items]
Area of space leased (in sqft) | ft²	26,600