Debt (Details) - USD ($) $ in Thousands				6 Months Ended
Debt (Details) - USD ($) $ in Thousands	Mar. 27, 2025	Jun. 28, 2024	May 09, 2024	Jun. 30, 2025	Jun. 30, 2024
Line of Credit Facility [Line Items]
Proceeds from Term Loans				$ 122,500	$ 122,500
Lender and third-party fees				$ 0	$ 2,303
Oaktree Fund Administration, LLC
Line of Credit Facility [Line Items]
Purchase price			$ 100,000
Percentage of global net sales			6.50%
Licensees			5.00%
Line of Credit
Line of Credit Facility [Line Items]
Future working capital	$ 75,000
2023 Term Loan \| Secured Debt
Line of Credit Facility [Line Items]
Principal outstanding			$ 52,300
Interest expense			100
2023 Term A Loan \| Secured Debt
Line of Credit Facility [Line Items]
Net proceeds			$ 1,100
2024 Term Loan
Line of Credit Facility [Line Items]
Effective interest rate				11.00%
2024 Term Loan \| Line of Credit
Line of Credit Facility [Line Items]
Exit fee percentage			2.50%
2024 Term Loan \| Line of Credit \| Minimum
Line of Credit Facility [Line Items]
Minimum american depository shares value			$ 1,000,000
2024 Term Loan \| Line of Credit \| Debt Instrument Interest Rate, Period One
Line of Credit Facility [Line Items]
Basis spread on variable rate	9.70%		11.00%
2024 Term Loan \| Line of Credit \| Debt Instrument Interest Rate, After Milestones
Line of Credit Facility [Line Items]
Basis spread on variable rate	9.35%
2024 Term Loan \| Secured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount			$ 400,000
Net proceeds			52,800
Lender and third-party fees			$ 1,100
Debt default stated percentage			2.00%
Prepayment cost			$ 5,000
Denomination multiple			$ 1,000
Multiple of aggregate principle amount			1.25
2024 Term Loan \| Secured Debt \| Debt Prepayment Period One
Line of Credit Facility [Line Items]
Early repayment penalty			7.00%
2024 Term Loan \| Secured Debt \| Debt Prepayment Period Two
Line of Credit Facility [Line Items]
Early repayment penalty			5.00%
2024 Term Loan \| Secured Debt \| Debt Prepayment Period Four
Line of Credit Facility [Line Items]
Early repayment penalty			1.00%
2024 Term A Loan \| Secured Debt
Line of Credit Facility [Line Items]
Proceeds from Term Loans			$ 55,000
Net proceeds			52,400
2024 Term B \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity			70,000
2024 Term B \| Secured Debt
Line of Credit Facility [Line Items]
Proceeds from Term Loans		$ 70,000
Net proceeds		68,600
issuance discount		$ 1,400
2024 Term C \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 125,000		75,000
2024 Term D \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity			100,000
2024 Term E Loan \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 100,000
Issuance discount			2.00%

Verona Pharma plc 10-Q