| r0.1 | label_boi_a2/For balance as of (date) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | N/A | boi_MU:x1 | N/A | N/A | boi_SE:x1 |
| r0.2 | label_boi_a2/For transactions in past month | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | N/A | boi_MU:x1 | N/A | boi_RP:x20 | boi_SE:x1 |
| r0.3 | label_boi_a2/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | N/A | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| r0.4 | label_boi_a2/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | N/A | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| 1.1 | Credit in overdraft facilities/For balance as of (date) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x53 | boi_MU:x1 | N/A | N/A | boi_SE:x1 |
| 1.2 | Credit in overdraft facilities/For transactions in past month | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x53 | boi_MU:x1 | N/A | boi_RP:x20 | boi_SE:x1 |
| 1.3 | Credit in overdraft facilities/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x53 | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| 1.4 | Credit in overdraft facilities/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_MC:x53 | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| 2.1 | Other loans/For balance as of (date) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x604 | boi_MU:x1 | N/A | N/A | boi_SE:x1 |
| 2.2 | Other loans/For transactions in past month | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x604 | boi_MU:x1 | N/A | boi_RP:x20 | boi_SE:x1 |
| 2.3 | Other loans/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x604 | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| 2.4 | Other loans/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_MC:x604 | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| 3.1 | Total credit from banking corporations/For balance as of (date) | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x17 | boi_MU:x1 | N/A | N/A | boi_SE:x1 |
| 3.2 | Total credit from banking corporations/For transactions in past month | boi_met:pd90 | num:percentItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x17 | boi_MU:x1 | N/A | boi_RP:x20 | boi_SE:x1 |
| 3.3 | Total credit from banking corporations/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x2 | boi_MC:x17 | N/A | boi_RP:x24 | N/A | boi_SE:x1 |
| 3.4 | Total credit from banking corporations/Reported amounts | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x2 | boi_CS:x1 | boi_MC:x17 | N/A | boi_RP:x24 | N/A | boi_SE:x1 |