| r0.1 | label_boi_a2/Consolidated | | | | N/A | boi_CS:x2 | N/A | N/A | boi_RP:x25 |
| r0.2 | label_boi_a2/Bank Corporation | | | | N/A | boi_CS:x1 | N/A | N/A | boi_RP:x25 |
| 1.1 | Pre-tax profit (loss) from on-going activity/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_MC:x123 | boi_MU:x1 | boi_RP:x25 |
| 1.2 | Pre-tax profit (loss) from on-going activity/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x1 | boi_MC:x123 | boi_MU:x1 | boi_RP:x25 |
| 2.1 | Statutory tax rate applying to a banking corporation/Consolidated | boi_met:pi121 | num:percentItemType | instant | N/A | boi_CS:x2 | N/A | N/A | boi_RP:x25 |
| 2.2 | Statutory tax rate applying to a banking corporation/Bank Corporation | boi_met:pi121 | num:percentItemType | instant | N/A | boi_CS:x1 | N/A | N/A | boi_RP:x25 |
| 3.1 | Tax at the statutory tax rate/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x416 | boi_MU:x1 | boi_RP:x25 |
| 3.2 | Tax at the statutory tax rate/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x416 | boi_MU:x1 | boi_RP:x25 |
| r4.1 | Tax (tax saving) resulting from:/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MU:x1 | boi_RP:x25 |
| r4.2 | Tax (tax saving) resulting from:/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | N/A | boi_MU:x1 | boi_RP:x25 |
| 4.1 | Income of subsidiaries abroad/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x417 | boi_MU:x1 | boi_RP:x25 |
| 4.2 | Income of subsidiaries abroad/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x417 | boi_MU:x1 | boi_RP:x25 |
| 5.1 | Tax exempt and at preferred rates/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x418 | boi_MU:x1 | boi_RP:x25 |
| 5.2 | Tax exempt and at preferred rates/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x418 | boi_MU:x1 | boi_RP:x25 |
| 6.1 | Adjustment differences for depreciation and capital gain/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x419 | boi_MU:x1 | boi_RP:x25 |
| 6.2 | Adjustment differences for depreciation and capital gain/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x419 | boi_MU:x1 | boi_RP:x25 |
| 7.1 | Non - deductible other expenses (fines non-deductable expenses)/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x420 | boi_MU:x1 | boi_RP:x25 |
| 7.2 | Non - deductible other expenses (fines non-deductable expenses)/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x420 | boi_MU:x1 | boi_RP:x25 |
| 8.1 | Timing differences for which deferred taxes have not been recorded/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x422 | boi_MU:x1 | boi_RP:x25 |
| 8.2 | Timing differences for which deferred taxes have not been recorded/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x422 | boi_MU:x1 | boi_RP:x25 |
| r10.1 | Taxes un respect of previos years:/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | N/A | boi_MU:x1 | boi_RP:x25 |
| r10.2 | Taxes un respect of previos years:/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | N/A | boi_MU:x1 | boi_RP:x25 |
| 9.1 | Additional amount of problematic debts/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x424 | boi_MU:x1 | boi_RP:x25 |
| 9.2 | Additional amount of problematic debts/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x424 | boi_MU:x1 | boi_RP:x25 |
| 10.1 | Others/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x425 | boi_MU:x1 | boi_RP:x25 |
| 10.2 | Others/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x425 | boi_MU:x1 | boi_RP:x25 |
| 11.1 | Income of Israeli subsidiaries/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x426 | boi_MU:x1 | boi_RP:x25 |
| 11.2 | Income of Israeli subsidiaries/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x426 | boi_MU:x1 | boi_RP:x25 |
| 12.1 | Change in deferred taxes due to change in tax rate/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x427 | boi_MU:x1 | boi_RP:x25 |
| 12.2 | Change in deferred taxes due to change in tax rate/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x427 | boi_MU:x1 | boi_RP:x25 |
| 13.1 | Change in the provision for deferred tax assets/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x1091 | boi_MU:x1 | boi_RP:x25 |
| 13.2 | Change in the provision for deferred tax assets/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x1091 | boi_MU:x1 | boi_RP:x25 |
| 14.1 | Other/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x429 | boi_MU:x1 | boi_RP:x25 |
| 14.2 | Other/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x429 | boi_MU:x1 | boi_RP:x25 |
| 15.1 | Provision for taxes on operating profit/Consolidated | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_MC:x190 | boi_MU:x1 | boi_RP:x25 |
| 15.2 | Provision for taxes on operating profit/Bank Corporation | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x1 | boi_MC:x190 | boi_MU:x1 | boi_RP:x25 |
| 16.1 | Amount of tax in dispute for which no provision was made/Consolidated | boi_met:mi122 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | N/A | boi_RP:x25 |
| 16.2 | Amount of tax in dispute for which no provision was made/Bank Corporation | boi_met:mi122 | xbrli:monetaryItemType | instant | N/A | boi_CS:x1 | N/A | N/A | boi_RP:x25 |