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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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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Number of options vested.

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Stock-based Compensation - Additional Information (Details) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	31,608,681			31,608,681		93,259,149
Stock-based compensation expense	$ 8,238,000		$ 5,487,000	$ 14,633,000	$ 10,231,000
Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock available for issuance (shares)		25,000,000
2019 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	19,758,924			19,758,924
Restricted stock awards, and other stock-based award vesting period				4 years
Restricted stock awards, and other stock-based award vesting maximum term				10 years
2026 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock available for issuance (shares)				11,852,719
Common stock reserved for future issuance	7,232,136			7,232,136
Restricted stock awards, and other stock-based award vesting period				4 years
Restricted stock awards, and other stock-based award vesting maximum term				10 years
Stock Option Valuation
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation expense	$ 87,000,000			$ 87,000,000
Weighted average recognition period				2 years 9 months 18 days
Stock-based compensation expense						$ 0
Stock Option Valuation \| Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options issued subject to performance condition							65,832	631,665
Vesting of stock options with performance condition						157,916			157,916
Stock options remains outstanding						315,833
Stock options shares expired				131,664
Stock option grants lapse and forfeited date							Jan. 01, 2026
Stock Option Valuation \| Minimum \| Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock options Issued specified payments							$ 50,000,000	$ 200,000,000
Stock options Issued aggregate specified payments							$ 100,000,000