DoubleVerify Holdings, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

Stockholders' Equity (Details) $ / shares in Units, shares in Thousands, $ in Thousands				3 Months Ended	6 Months Ended
	Jul. 21, 2021 shares	Apr. 23, 2021 USD ($) $ / shares shares	Apr. 09, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2020 USD ($)	Mar. 29, 2021 $ / shares	Dec. 31, 2020 $ / shares shares
Granted					598
Underwriting discount fees \| $					$ 21,708	$ 1,107
Stock offering cost \| $					$ 21,801	$ 1,058
Treasury stock, shares reissued \| $		$ 15,146
Common stock, par value \| $ / shares				$ 0.001	$ 0.001		$ 0.001	$ 0.001
Preferred stock, par value \| $ / shares				$ 0.01	$ 0.01		$ 0.01	$ 0.01
Common stock, shares authorized				1,000,000	1,000,000			700,000
Preferred stock, shares authorized				100,000	100,000			61,006
Stock options
Number of days option to purchase					4 years
Stock options \| 2017 Equity Plan \| Subsequent Event
Granted	140
Stock options \| 2021 Omnibus Equity Incentive Plan \| Subsequent Event
Granted	395
Restricted Stock Units (RSUs)
Granted					576
Number of days option to purchase					4 years
Restricted Stock Units (RSUs) \| 2017 Equity Plan \| Subsequent Event
Granted	107
Restricted Stock Units (RSUs) \| 2021 Omnibus Equity Incentive Plan \| Subsequent Event
Granted	427
Private Placement
Purchase price \| $				$ 30,000
IPO
Number of shares issued		9,977
Purchase price \| $				$ 269,390
Purchase price per share \| $ / shares		$ 27.00
Aggregate net proceeds \| $		$ 253,200
Underwriting discount fees \| $		16,200
Stock offering cost \| $		$ 26,800
Number of shares converted		20,335
Convertible preferred stock, conversion ratio		1
Common stock, par value \| $ / shares				$ 0.001	$ 0.001
Preferred stock, par value \| $ / shares				$ 0.01	$ 0.01			$ 0.01
Common stock, shares authorized				1,000,000	1,000,000			1,000,000
Preferred stock, shares authorized				100,000	100,000			100,000
Underwriter Option
Number of shares issued		1,350
Tiger Global Management, LLC \| Private Placement
Number of shares issued			1,111
Purchase price per share \| $ / shares			$ 27.00
Gross proceeds \| $			$ 30,000
Aggregate net proceeds \| $			29,000
Underwriting discount fees \| $			$ 1,000
Providence \| Private Placement
Number of shares issued		5,356
Providence \| Underwriter Option
Number of shares issued		650
General and administrative \| IPO
Stock offering cost \| $				$ 18,700	$ 21,800