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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | SCHEDULE II DoubleVerify Holdings, Inc. Valuation and Qualifying Accounts (In thousands) ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | (Recoveries) | ​ | Additions | ​ | Balance at
​ | ​ | Beginning of | ​ | Charges to Costs | ​ | (Deductions) ‑ | ​ | End of
Description |  | Year |  | and Expenses |  | Write off |  | Year
Allowance for doubtful accounts | ​ |  | ​ |  | ​ |  | ​ |
Year ended December 31, 2021 |  | 7,049 |  | (711) |  | 189 |  | 6,527
Year ended December 31, 2020 |  | 4,599 |  | 4,811 |  | (2,361) |  | 7,049
Year ended December 31, 2019 |  | 3,103 |  | 3,346 |  | (1,850) |  | 4,599
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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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