| r0.1 | label_boi_a2/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | N/A | N/A | N/A | boi_MU:x1 | N/A | N/A | N/A |
| r0.2 | label_boi_a2/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | N/A | N/A | N/A | boi_MU:x1 | N/A | N/A | N/A |
| r1.1 | Wage components and related expenditure attributed to active employees at offices in Israel:/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| r1.2 | Wage components and related expenditure attributed to active employees at offices in Israel:/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 1.1 | Up to 60/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x114 |
| 1.2 | Up to 60/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x114 |
| 2.1 | >60 - 120/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x115 |
| 2.2 | >60 - 120/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x115 |
| 3.1 | >120 - 240/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x116 |
| 3.2 | >120 - 240/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x116 |
| 4.1 | >240 - 360/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x117 |
| 4.2 | >240 - 360/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x117 |
| 5.1 | >360 - 600/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x118 |
| 5.2 | >360 - 600/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x118 |
| 6.1 | >600 - 1000/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x119 |
| 6.2 | >600 - 1000/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x119 |
| 7.1 | >1000/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x120 |
| 7.2 | >1000/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | boi_VI:x120 |
| 8.1 | Total/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 8.2 | Total/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| r10.1 | Thereof: expenditure on personnel company staff/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | N/A |
| r10.2 | Thereof: expenditure on personnel company staff/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | N/A |
| 9.1 | Up to 120/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | boi_VI:x121 |
| 9.2 | Up to 120/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | boi_VI:x121 |
| 10.1 | >120/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | boi_VI:x122 |
| 10.2 | >120/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | boi_VI:x122 |
| 11.1 | Total/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | N/A |
| 11.2 | Total/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x634 | boi_MU:x1 | boi_PL:x41 | boi_SE:x86 | N/A |
| r14.1 | Wage components and related expenditure not attributed to active employees at offices in Israel:/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | N/A | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| r14.2 | Wage components and related expenditure not attributed to active employees at offices in Israel:/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | N/A | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 12.1 | Compensation, benefits, pension, and vacation/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x629 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 12.2 | Compensation, benefits, pension, and vacation/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x629 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 13.1 | Payroll tax/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x630 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 13.2 | Payroll tax/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x630 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 14.1 | Related and other expenses/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x631 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 14.2 | Related and other expenses/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x631 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 15.1 | Expenditure on updating of actuarial reserves/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x632 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 15.2 | Expenditure on updating of actuarial reserves/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x632 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 16.1 | Expenditure originating in unattributable share-based payment transactions/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x163 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 16.2 | Expenditure originating in unattributable share-based payment transactions/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x163 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 17.1 | Total/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 17.2 | Total/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x1 | boi_MC:x161 | boi_MC:x635 | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 18.1 | Wage expenditure on banks' employees in overseas offices/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | boi_GA:x2 | boi_MC:x161 | N/A | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 18.2 | Wage expenditure on banks' employees in overseas offices/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | boi_GA:x2 | boi_MC:x161 | N/A | boi_MU:x1 | boi_PL:x41 | N/A | N/A |
| 19.1 | Wage expenditure capitalized to assets/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x161 | N/A | boi_MU:x1 | boi_PL:x42 | N/A | N/A |
| 19.2 | Wage expenditure capitalized to assets/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | N/A | boi_MC:x161 | N/A | boi_MU:x1 | boi_PL:x42 | N/A | N/A |
| 20.1 | Total wage and related expenditure/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x161 | N/A | boi_MU:x1 | N/A | N/A | N/A |
| 20.2 | Total wage and related expenditure/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | N/A | boi_MC:x161 | N/A | boi_MU:x1 | N/A | N/A | N/A |
| 21.1 | Further information - expenditure on personnel company employees not included in total wage and related expenditure/No. of posts (on monthly avg. basis) | boi_met:rd296 | xbrli:decimalItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x633 | N/A | boi_MU:x1 | N/A | N/A | N/A |
| 21.2 | Further information - expenditure on personnel company employees not included in total wage and related expenditure/Total wages and related expenses | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x10 | boi_CS:x2 | N/A | boi_MC:x633 | N/A | boi_MU:x1 | N/A | N/A | N/A |