Notes Payable - Joinder Agreements And Amendments (Details) $ / shares in Units, $ in Thousands	Jun. 26, 2023 USD ($) installment $ / shares	Sep. 21, 2023 USD ($)	Aug. 04, 2023 USD ($)	Mar. 23, 2023 USD ($)
Tranche B Notes | Notes Payable
Debt Instrument [Line Items]
Aggregate principal amount				$ 5,000
FF Vitality Ventures LLC
Debt Instrument [Line Items]
Notes payable	$ 300
FF Vitality Ventures LLC | Maximum
Debt Instrument [Line Items]
Notes payable	$ 400
FF Vitality Ventures LLC | Notes Payable
Debt Instrument [Line Items]
Percent of purchaser's conversion shares	33.00%
FF Vitality Ventures LLC | Tranche B Notes | Notes Payable
Debt Instrument [Line Items]
Aggregate principal amount	$ 20,000
Option to purchase additional debt	$ 10,000		$ 20,000
FF Vitality Ventures LLC | Unsecured SPA Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 20,000
Commitment amount, number of installments | installment	8
Debt instrument, floor price (in dollars per share) | $ / shares	$ 12.00
FF Vitality Ventures LLC | Unsecured SPA Notes | Maximum
Debt Instrument [Line Items]
Total commitments	$ 40,000
FF Vitality Ventures LLC | Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares	$ 214.20
Option to purchase additional debt	$ 20,000
Option to purchase additional notes, period	12 months
Senyun
Debt Instrument [Line Items]
Notes payable	$ 200
Senyun | Maximum
Debt Instrument [Line Items]
Notes payable	300
Senyun | Unsecured SPA Notes | Notes Payable
Debt Instrument [Line Items]
Total commitments	$ 30,000
Commitment amount, number of installments | installment	8
Debt instrument, floor price (in dollars per share) | $ / shares	$ 10.90
Senyun | Tranche A Notes | Notes Payable
Debt Instrument [Line Items]
Aggregate principal amount	$ 15,000
Senyun | Tranche A or Tranche B Notes | Notes Payable
Debt Instrument [Line Items]
Option to purchase additional debt	10,000
Option to purchase additional debt, additional amount	$ 20,000