| r0.1 | label_boi_a2/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | N/A | N/A |
| 3.1 | Number of accounts: Individuals/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | N/A | boi_SE:x147 |
| 4.1 | Number of accounts: Corporations/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | N/A | boi_SE:x346 |
| 5.1 | Number of accounts: Other (neither individual nor corporation)/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | N/A | boi_SE:x347 |
| 6.1 | Number of accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | N/A | N/A |
| r5.1 | Of which:/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | N/A | N/A |
| 7.1 | Accounts blocked for reasons of AML/CFT/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x62 | N/A |
| 8.1 | Accounts of corporations that incorporated in an offshore country/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x63 | N/A |
| 9.1 | Hold-mail accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x64 | N/A |
| 10.1 | Third-party accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x65 | N/A |
| 11.1 | Back to back accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x66 | N/A |
| 12.1 | Precious stones dealer accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x67 | N/A |
| 13.1 | Finance services provider accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x68 | N/A |
| 14.1 | Foreign politically exposed persons' accounts, including senior officer in an international institution/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x69 | N/A |
| 15.1 | Domestic politically exposed persons accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x70 | N/A |
| 16.1 | Nonprofit organizations' accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x71 | N/A |
| 17.1 | Security manufacturing and services accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x72 | N/A |
| 18.1 | Precious metals dealers' accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x73 | N/A |
| 19.1 | Private banking accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x74 | N/A |
| 20.1 | Safe-owners' accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x75 | N/A |
| 21.1 | Online accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x76 | N/A |
| 22.1 | Accounts with intensive cash activity/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x77 | N/A |
| 23.1 | Accounts with intensive cross-border wire transfers/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x78 | N/A |
| 24.1 | Accounts with intensive cross-border wire transfers - to/from offshore countries/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x79 | N/A |
| 25.1 | Accounts with intensive cross-border wire transfers - to/from countries at high risk/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x80 | N/A |
| 26.1 | Virtual-asset service providers's accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x81 | N/A |
| 27.1 | Correspondent accounts/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x82 | N/A |
| 28.1 | Accounts with complex incorporation structures/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x83 | N/A |
| 29.1 | Accounts with existing and developing significant focal points of risk/Total accounts | boi_met:ii289 | xbrli:integerItemType | instant | boi_CS:x1 | boi_GA:x1 | boi_RT:x84 | N/A |