| r0.1 | label_boi_a2/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | N/A | boi_MU:x1 |
| r0.2 | label_boi_a2/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | N/A | boi_MU:x1 |
| r0.3 | label_boi_a2/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | N/A | boi_MU:x1 |
| r1.1 | Maintenance expenditure/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | N/A | boi_MU:x1 |
| r1.2 | Maintenance expenditure/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | N/A | boi_MU:x1 |
| r1.3 | Maintenance expenditure/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | N/A | boi_MU:x1 |
| r2.1 | Buildings/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | N/A | boi_MU:x1 |
| r2.2 | Buildings/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | N/A | boi_MU:x1 |
| r2.3 | Buildings/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | N/A | boi_MU:x1 |
| 1.1 | Rent/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x658 | boi_MU:x1 |
| 1.2 | Rent/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x658 | boi_MU:x1 |
| 1.3 | Rent/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x658 | boi_MU:x1 |
| 2.1 | Property tax on bank premises/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x659 | boi_MU:x1 |
| 2.2 | Property tax on bank premises/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x659 | boi_MU:x1 |
| 2.3 | Property tax on bank premises/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x659 | boi_MU:x1 |
| 3.1 | Municipal taxes/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x660 | boi_MU:x1 |
| 3.2 | Municipal taxes/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x660 | boi_MU:x1 |
| 3.3 | Municipal taxes/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x660 | boi_MU:x1 |
| 4.1 | Other expenses/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x661 | boi_MU:x1 |
| 4.2 | Other expenses/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x661 | boi_MU:x1 |
| 4.3 | Other expenses/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x661 | boi_MU:x1 |
| 5.1 | Total/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x657 | boi_MU:x1 |
| 5.2 | Total/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x657 | boi_MU:x1 |
| 5.3 | Total/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x657 | boi_MU:x1 |
| r8.1 | Equipment/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | N/A | boi_MU:x1 |
| r8.2 | Equipment/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | N/A | boi_MU:x1 |
| r8.3 | Equipment/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | N/A | boi_MU:x1 |
| 6.1 | Computer rental/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x663 | boi_MU:x1 |
| 6.2 | Computer rental/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x663 | boi_MU:x1 |
| 6.3 | Computer rental/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x663 | boi_MU:x1 |
| 7.1 | Motor vehicle maintenance expenditure/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x664 | boi_MU:x1 |
| 7.2 | Motor vehicle maintenance expenditure/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x664 | boi_MU:x1 |
| 7.3 | Motor vehicle maintenance expenditure/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x664 | boi_MU:x1 |
| 8.1 | Equipment maintenance expenditure/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x665 | boi_MU:x1 |
| 8.2 | Equipment maintenance expenditure/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x665 | boi_MU:x1 |
| 8.3 | Equipment maintenance expenditure/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x665 | boi_MU:x1 |
| 9.1 | Total/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x666 | boi_MU:x1 |
| 9.2 | Total/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x666 | boi_MU:x1 |
| 9.3 | Total/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x666 | boi_MU:x1 |
| 10.1 | Software costs/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x662 | boi_MU:x1 |
| 10.2 | Software costs/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x662 | boi_MU:x1 |
| 10.3 | Software costs/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x662 | boi_MU:x1 |
| 11.1 | Total maintenance expenditure/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x656 | boi_MU:x1 |
| 11.2 | Total maintenance expenditure/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x656 | boi_MU:x1 |
| 11.3 | Total maintenance expenditure/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x656 | boi_MU:x1 |
| 12.1 | Income from rent and other participation in maintenance expenditure/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x667 | boi_MU:x1 |
| 12.2 | Income from rent and other participation in maintenance expenditure/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x667 | boi_MU:x1 |
| 12.3 | Income from rent and other participation in maintenance expenditure/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x667 | boi_MU:x1 |
| 13.1 | Depreciation of buildings, equipment, and software costs/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x668 | boi_MU:x1 |
| 13.2 | Depreciation of buildings, equipment, and software costs/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x668 | boi_MU:x1 |
| 13.3 | Depreciation of buildings, equipment, and software costs/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x668 | boi_MU:x1 |
| r17.1 | Thereof:/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x668 | boi_MU:x1 |
| r17.2 | Thereof:/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x668 | boi_MU:x1 |
| r17.3 | Thereof:/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x668 | boi_MU:x1 |
| 14.1 | Depreciation of computers/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x669 | boi_MU:x1 |
| 14.2 | Depreciation of computers/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x669 | boi_MU:x1 |
| 14.3 | Depreciation of computers/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x669 | boi_MU:x1 |
| 15.1 | Recognized depreciation losses/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x670 | boi_MU:x1 |
| 15.2 | Recognized depreciation losses/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x670 | boi_MU:x1 |
| 15.3 | Recognized depreciation losses/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x670 | boi_MU:x1 |
| 16.1 | Disallowed depreciation losses/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x671 | boi_MU:x1 |
| 16.2 | Disallowed depreciation losses/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x671 | boi_MU:x1 |
| 16.3 | Disallowed depreciation losses/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x671 | boi_MU:x1 |
| 17.1 | Total expenditure, net/Activity in Israel | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x1 | boi_MC:x171 | boi_MU:x1 |
| 17.2 | Total expenditure, net/Activity abroad | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x171 | boi_MU:x1 |
| 17.3 | Total expenditure, net/Total | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MC:x171 | boi_MU:x1 |