| Cover | 12 Months Ended |
| Dec. 31, 2023 | |
| Document Information [Line Items] | |
| Document Type | PRE 14A |
| Amendment Flag | false |
| Entity Information [Line Items] | |
| Entity Registrant Name | VERONA PHARMA PLC |
| Entity Central Index Key | 0001657312 |
| Pay vs Performance Disclosure - USD ($) | 12 Months Ended | ||
| Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | |
| Pay vs Performance Disclosure | |||
| Pay vs Performance Disclosure, Table | Year Summary Compensation (1) Average Average Value of Net Total 2023 6,559,277 558,317 4,082,064 207,291 284.00 (54,369,000 ) 2022 5,183,140 27,578,945 3,142,941 17,462,808 373.29 (68,701,000 ) 2021 1,123,304 823,718 650,336 425,254 96.00 (55,569,000 ) (1) Amounts represent compensation actually paid to our PEO and the average compensation actually paid to our remaining NEOs for the relevant fiscal year, as determined under SEC rules (and described below), which includes the individuals indicated in the table below for each fiscal year: Year PEO Non-PEO NEOs 2023 David Zaccardelli Mark W. Hahn and Kathleen Rickard 2022 David Zaccardelli Mark W. Hahn and Kathleen Rickard 2021 David Zaccardelli Mark W. Hahn and Kathleen Rickard Compensation actually paid to our NEOs represents the “Total” compensation reported in the Summary Compensation Table for the applicable fiscal year, as adjusted as follows: 2023 Adjustments PEO Average Deduction for Amounts Reported under the “Stock Awards” and “Option Awards” Columns in the Summary Compensation Table for Applicable FY (5,324,000 ) (3,327,500 ) Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY 7,952,000 4,970,000 Increase based on ASC 718 Fair Value of Awards Granted during Applicable FY — — Increase/deduction for Awards Granted during Prior FY that were Outstanding and Unvested as of Applicable FY End, determined based on change in ASC 718 Fair Value from Prior FY End to Applicable FY End (3,012,444 ) (2,185,934 ) 2023 Adjustments PEO Average Increase/deduction for Awards Granted during Prior FY that Vested During (5,616,516 ) (3,331,338 ) Deduction of ASC 718 Fair Value of Awards Granted during Prior FY that were — — Increase based on Dividends or Other Earnings Paid during Applicable FY prior — — Increase based on Incremental Fair Value of Options/SARs Modified during Applicable FY — — TOTAL ADJUSTMENTS (6,000,960 ) (3,874,772 ) | ||
| Named Executive Officers, Footnote | (1) Amounts represent compensation actually paid to our PEO and the average compensation actually paid to our remaining NEOs for the relevant fiscal year, as determined under SEC rules (and described below), which includes the individuals indicated in the table below for each fiscal year: Year PEO Non-PEO NEOs 2023 David Zaccardelli Mark W. Hahn and Kathleen Rickard 2022 David Zaccardelli Mark W. Hahn and Kathleen Rickard 2021 David Zaccardelli Mark W. Hahn and Kathleen Rickard | ||
| PEO Total Compensation Amount | $ 6,559,277 | $ 5,183,140 | $ 1,123,304 |
| PEO Actually Paid Compensation Amount | 558,317 | 27,578,945 | 823,718 |
| Non-PEO NEO Average Total Compensation Amount | 4,082,064 | 3,142,941 | 650,336 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ 207,291 | 17,462,808 | 425,254 |
| Compensation Actually Paid vs. Total Shareholder Return | |||
| Compensation Actually Paid vs. Net Income | |||
| Total Shareholder Return Amount | $ 284 | 373.29 | 96 |
| Net Income (Loss) | $ (54,369,000) | $ (68,701,000) | $ (55,569,000) |
| PEO Name | David Zaccardelli | ||
| PEO | Total Net Adjustments For Equity Awards [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | $ (6,000,960) | ||
| PEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | (5,324,000) | ||
| PEO | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | 7,952,000 | ||
| PEO | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | (3,012,444) | ||
| PEO | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | (5,616,516) | ||
| Non-PEO NEO | Total Net Adjustments For Equity Awards [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | (3,874,772) | ||
| Non-PEO NEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | (3,327,500) | ||
| Non-PEO NEO | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | 4,970,000 | ||
| Non-PEO NEO | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | (2,185,934) | ||
| Non-PEO NEO | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] | |||
| Pay vs Performance Disclosure | |||
| Adjustment to Compensation, Amount | $ (3,331,338) | ||
