| r0.1 | label_boi_a2/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | N/A | N/A | boi_RP:x24 | N/A | N/A |
| r0.2 | label_boi_a2/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | N/A | N/A | boi_RP:x24 | N/A | N/A |
| r1.1 | In Israel/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | N/A | boi_RP:x24 | N/A | N/A |
| r1.2 | In Israel/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | N/A | boi_RP:x24 | N/A | N/A |
| r2.1 | Commercial banks:/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | N/A | boi_RP:x24 | boi_SE:x5 | N/A |
| r2.2 | Commercial banks:/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | N/A | boi_RP:x24 | boi_SE:x5 | N/A |
| 1.1 | Demand deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x37 |
| 1.2 | Demand deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x37 |
| 2.1 | Terms deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x35 |
| 2.2 | Terms deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x35 |
| 3.1 | Acceptance/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | boi_MC:x254 | boi_RP:x24 | boi_SE:x5 | N/A |
| 3.2 | Acceptance/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | boi_MC:x254 | boi_RP:x24 | boi_SE:x5 | N/A |
| r6.1 | Central banks:/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | N/A |
| r6.2 | Central banks:/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | N/A |
| 4.1 | Demand deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x37 |
| 4.2 | Demand deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x37 |
| 5.1 | Terms deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x1 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x35 |
| 5.2 | Terms deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x1 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x35 |
| r9.1 | Outside Israel/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | N/A | boi_RP:x24 | N/A | N/A |
| r9.2 | Outside Israel/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | N/A | boi_RP:x24 | N/A | N/A |
| r10.1 | Commercial banks:/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | N/A | boi_RP:x24 | boi_SE:x5 | N/A |
| r10.2 | Commercial banks:/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | N/A | boi_RP:x24 | boi_SE:x5 | N/A |
| 6.1 | Demand deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x37 |
| 6.2 | Demand deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x37 |
| 7.1 | Terms deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x35 |
| 7.2 | Terms deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | boi_MC:x253 | boi_RP:x24 | boi_SE:x5 | boi_TI:x35 |
| 8.1 | Acceptance/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | boi_MC:x254 | boi_RP:x24 | boi_SE:x5 | N/A |
| 8.2 | Acceptance/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | boi_MC:x254 | boi_RP:x24 | boi_SE:x5 | N/A |
| r14.1 | Central banks:/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | N/A |
| r14.2 | Central banks:/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | N/A |
| 9.1 | Demand deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x37 |
| 9.2 | Demand deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x37 |
| 10.1 | Terms deposits/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_GA:x2 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x35 |
| 10.2 | Terms deposits/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_GA:x2 | boi_MC:x17 | boi_RP:x24 | boi_SE:x2 | boi_TI:x35 |
| 11.1 | Total deposits from corporated banks/Consolidated | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | N/A | boi_MC:x17 | boi_RP:x24 | boi_SE:x1 | N/A |
| 11.2 | Total deposits from corporated banks/Bank Corporation | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | N/A | boi_MC:x17 | boi_RP:x24 | boi_SE:x1 | N/A |