| r0.2 | label_boi_a2/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x125 | N/A | N/A | boi_RP:x19 |
| r0.3 | label_boi_a2/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x125 | N/A | N/A | boi_RP:x19 |
| r0.5 | label_boi_a2/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x125 | N/A | boi_MU:x1 | boi_RP:x3 |
| r0.6 | label_boi_a2/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x125 | N/A | boi_MU:x1 | boi_RP:x3 |
| r1.2 | Interest spread Net yield on income - earnings assets/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| r1.3 | Interest spread Net yield on income - earnings assets/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| r1.5 | Interest spread Net yield on income - earnings assets/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| r1.6 | Interest spread Net yield on income - earnings assets/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 29.2 | In Israel/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x1 | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| 29.3 | In Israel/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x1 | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| 29.5 | In Israel/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x1 | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 29.6 | In Israel/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x1 | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 30.2 | Outside Israel/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| 30.3 | Outside Israel/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| 30.5 | Outside Israel/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 30.6 | Outside Israel/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 31.2 | Total/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| 31.3 | Total/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | N/A | boi_RP:x19 |
| 31.5 | Total/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 31.6 | Total/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x11 | boi_CS:x2 | N/A | boi_MC:x125 | boi_MC:x52 | boi_MU:x1 | boi_RP:x3 |
| 32.2 | Total interest-bearing liabilities attributable to activtity outside Israel/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x3 | N/A | boi_RP:x19 |
| 32.3 | Total interest-bearing liabilities attributable to activtity outside Israel/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x3 | N/A | boi_RP:x19 |
| 32.5 | Total interest-bearing liabilities attributable to activtity outside Israel/Financing income (expenses) | boi_met:md13 | xbrli:monetaryItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x3 | boi_MU:x1 | boi_RP:x3 |
| 32.6 | Total interest-bearing liabilities attributable to activtity outside Israel/Rate of income (expense) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x12 | boi_CS:x2 | boi_GA:x2 | boi_MC:x125 | boi_MC:x3 | boi_MU:x1 | boi_RP:x3 |