| r0.2 | label_boi_a2/Interest 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 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/Interest expenses | boi_met:md13 | xbrli:monetaryItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x125 | N/A | boi_MU:x1 | boi_RP:x19 |
| r0.6 | label_boi_a2/Rate of expense | boi_met:pd90 | num:percentItemType | instant | N/A | boi_CS:x2 | N/A | boi_MC:x125 | N/A | boi_MU:x1 | boi_RP:x19 |
| r1.2 | Net return on interest-bearing assets/Interest 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 | Net return on interest-bearing assets/Rate of 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 | Net return on interest-bearing assets/Interest 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:x19 |
| r1.6 | Net return on interest-bearing assets/Rate of 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:x19 |
| 33.2 | In Israel/Interest 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 |
| 33.3 | In Israel/Rate of 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 |
| 33.5 | In Israel/Interest 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:x19 |
| 33.6 | In Israel/Rate of 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:x19 |
| 34.2 | Outside Israel/Interest 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 |
| 34.3 | Outside Israel/Rate of 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 |
| 34.5 | Outside Israel/Interest 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:x19 |
| 34.6 | Outside Israel/Rate of 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:x19 |
| 35.2 | Total/Interest 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 |
| 35.3 | Total/Rate of 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 |
| 35.5 | Total/Interest 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:x19 |
| 35.6 | Total/Rate of 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:x19 |
| 36.2 | Total interest-bearing liabilities attributable to activity outside Israel/Interest 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 |
| 36.3 | Total interest-bearing liabilities attributable to activity outside Israel/Rate of 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 |
| 36.5 | Total interest-bearing liabilities attributable to activity outside Israel/Interest 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:x19 |
| 36.6 | Total interest-bearing liabilities attributable to activity outside Israel/Rate of 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:x19 |