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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Stock-based Compensation - Additional Information (Details) $ / shares in Units, $ in Millions			1 Months Ended	9 Months Ended		12 Months Ended
	Jan. 01, 2026 shares	Aug. 10, 2021	Nov. 30, 2016	Sep. 30, 2026 USD ($) $ / shares shares	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares	Mar. 06, 2026	Jul. 28, 2025 goal	Feb. 04, 2025	Feb. 12, 2024 installment	Feb. 12, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum earned percentage							2
Minimum earned percentage							0
2021 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of share outstanding		4.00%
Additional shares authorized (in shares)	36,603,068
Yearly percentage increase in ESPP shares available for issuance		0.50%
Incentive Stock Options \| 2016 Stock Option and Grant Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contractual term of options			10 years
Award cliff off period				1 year
Incentive Stock Options \| 2016 Stock Option and Grant Plan \| Grantee Owns Ten Percent of Voting Rights
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contractual term of options				5 years
Percentage of shareholding by grantee				0.10
Percentage of stockholders on exercise price of option granted				0.10
Purchase price of common stock expressed as a percentage of its fair value				110.00%
Incentive Stock Options \| 2021 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting period				6 years
Unvested restricted stock awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value \| $				$ 95.0	$ 64.1
Maximum earned percentage								2
Minimum earned percentage								0
Target earned percentage								1
RSU stock awards share conversion ratio								2
Number of performance goals \| goal								6
Number of award installments \| installment										3
Unvested restricted stock awards \| 2016 Stock Option and Grant Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting period				6 years
Unvested restricted stock awards \| 2021 Equity Incentive Plan \| New Hires
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting period				4 years
Unvested restricted stock awards \| 2021 Equity Incentive Plan \| Existing Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vesting period				3 years
Performance Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock unit, conversion ratio									1.25	1.25
Maximum earned percentage									1.25		1.25
Minimum earned percentage									0.50		0.45
Target earned percentage									1		1
Employee Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Purchase price of common stock expressed as a percentage of its fair value		85.00%
Employee Stock \| 2021 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares authorized (in shares)	4,575,383
Options to purchase common stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock shares weighted average repurchase price per share \| $ / shares				$ 0.04		$ 0.04
Options to purchase common stock \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares to be repurchased (in shares)				445,552		708,731
Operating lease liabilities, net of current portion \| $				$ 0.0		$ 0.0
Other Stock Based Awards \| Legacy Joby Preferred Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Payments for advisory services shares (in shares)				2,677,200
Other Stock Based Awards \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares subject to vesting conditions (in shares)				334,803		668,384