| r0.c0 | Balance sheet before or after appropriation of results/Current | venj-bw2-i:BalanceSheetBeforeAfterAppropriationResults | venj-codes:profitAppropriationItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r0.c1 | Balance sheet before or after appropriation of results/Previous | venj-bw2-i:BalanceSheetBeforeAfterAppropriationResults | venj-codes:profitAppropriationItemType | duration | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c0 | Costs of incorporation and share issue/Current | venj-bw2-i:CostsIncorporationShareIssue | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r1.c1 | Costs of incorporation and share issue/Previous | venj-bw2-i:CostsIncorporationShareIssue | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c0 | Other non-current assets/Current | venj-bw2-i:AssetsNoncurrentOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r2.c1 | Other non-current assets/Previous | venj-bw2-i:AssetsNoncurrentOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c0 | Non-current assets/Current | venj-bw2-i:AssetsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r3.c1 | Non-current assets/Previous | venj-bw2-i:AssetsNoncurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c0 | Called-up share capital/Current | venj-bw2-i:CalledUpShareCapital | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r4.c1 | Called-up share capital/Previous | venj-bw2-i:CalledUpShareCapital | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c0 | Other current assets/Current | venj-bw2-i:AssetsCurrentOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r5.c1 | Other current assets/Previous | venj-bw2-i:AssetsCurrentOther | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c0 | Current assets/Current | venj-bw2-i:AssetsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r6.c1 | Current assets/Previous | venj-bw2-i:AssetsCurrent | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c0 | Assets/Current | venj-bw2-i:Assets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r7.c1 | Assets/Previous | venj-bw2-i:Assets | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c0 | Equity/Current | venj-bw2-i:Equity | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r8.c1 | Equity/Previous | venj-bw2-i:Equity | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c0 | Provisions/Current | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r9.c1 | Provisions/Previous | venj-bw2-i:Provisions | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c0 | Liabilities/Current | venj-bw2-i:Liabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r10.c1 | Liabilities/Previous | venj-bw2-i:Liabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r11.c0 | Equity and liabilities/Current | venj-bw2-i:EquityAndLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |
| r11.c1 | Equity and liabilities/Previous | venj-bw2-i:EquityAndLiabilities | nl-types:monetaryNoDecimalsItemType | instant | $BasisOfPreparationParam | venj-bw2-dm:SeparateMember |