BALANCE SHEETS COMPONENTS - Construction in Progress (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Construction in progress
Property, Plant and Equipment [Line Items]
Total construction in progress	$ 389,228	$ 276,919
Machinery and Tooling
Property, Plant and Equipment [Line Items]
Total construction in progress	207,847	132,943
Construction of Arizona plant
Property, Plant and Equipment [Line Items]
Total construction in progress	136,459	112,970
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total construction in progress	$ 44,922	$ 31,006

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.13)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_PropertyPlantAndEquipmentGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant