v3.25.4

Stock-Based Compensation - Additional information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Stock-Based Compensation
Granted	0	0
Options exercised	231
Stock option outstanding	8,818	9,371
Aggregate intrinsic value of exercised	$ 2.5	$ 10.8	$ 75.6
Weighted average grant date fair value (in dollars per share)			$ 12.57
Employee Stock Option
Stock-Based Compensation
Vesting period	4 years
Performance and Market Based Options
Stock-Based Compensation
Granted	0
Options exercised	86
Stock option outstanding	1,190
Restricted Stock Units (RSUs)
Stock-Based Compensation
Vesting period	4 years
Vested, Fair value	$ 79.9	$ 64.1	$ 37.6
Performance share units (PSUs)
Stock-Based Compensation
Vesting period	3 years
Vested, Fair value	$ 4.1

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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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DoubleVerify Holdings, Inc. 10-K