| r0.1 | label_boi_a2/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | N/A |
| r0.2 | label_boi_a2/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r0.3 | label_boi_a2/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r0.4 | label_boi_a2/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r1.1 | Property not yet sold:/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | N/A |
| r1.2 | Property not yet sold:/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r1.3 | Property not yet sold:/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r1.4 | Property not yet sold:/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| 1.1 | Request to appoint receiver was submitted/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x155 |
| 1.2 | Request to appoint receiver was submitted/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x155 |
| 1.3 | Request to appoint receiver was submitted/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x155 |
| 1.4 | Request to appoint receiver was submitted/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x155 |
| 2.1 | In receivership/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x156 |
| 2.2 | In receivership/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x156 |
| 2.3 | In receivership/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x156 |
| 2.4 | In receivership/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x156 |
| 3.1 | Evicted from property, which has not yet been sold/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x158 |
| 3.2 | Evicted from property, which has not yet been sold/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x158 |
| 3.3 | Evicted from property, which has not yet been sold/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x158 |
| 3.4 | Evicted from property, which has not yet been sold/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x158 |
| r5.1 | Flow during month:/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | N/A |
| r5.2 | Flow during month:/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r5.3 | Flow during month:/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| r5.4 | Flow during month:/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | N/A |
| 4.1 | Evicted from property during reported month/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x157 |
| 4.2 | Evicted from property during reported month/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x157 |
| 4.3 | Evicted from property during reported month/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x157 |
| 4.4 | Evicted from property during reported month/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x157 |
| 5.1 | Of which: with alternative arrangements/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x190 |
| 5.2 | Of which: with alternative arrangements/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x190 |
| 5.3 | Of which: with alternative arrangements/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x190 |
| 5.4 | Of which: with alternative arrangements/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x190 |
| 6.1 | Properties sold (before receiving payment) during reported month/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x160 |
| 6.2 | Properties sold (before receiving payment) during reported month/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x160 |
| 6.3 | Properties sold (before receiving payment) during reported month/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x160 |
| 6.4 | Properties sold (before receiving payment) during reported month/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x160 |
| 7.1 | Gross proceeds from properties sold during reported month/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x161 |
| 7.2 | Gross proceeds from properties sold during reported month/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x161 |
| 7.3 | Gross proceeds from properties sold during reported month/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x161 |
| 7.4 | Gross proceeds from properties sold during reported month/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x161 |
| 8.1 | Balance to collect in respect of properties sold (after payment received) during the reported month/Number of properties | boi_met:ri791 | xbrli:decimalItemType | instant | N/A | boi_CS:x1 | N/A | boi_ST:x162 |
| 8.2 | Balance to collect in respect of properties sold (after payment received) during the reported month/Debt balance | boi_met:mi792 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x162 |
| 8.3 | Balance to collect in respect of properties sold (after payment received) during the reported month/Listed debt balance | boi_met:mi1 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x162 |
| 8.4 | Balance to collect in respect of properties sold (after payment received) during the reported month/Amount received during the month | boi_met:md116 | xbrli:monetaryItemType | instant | boi_BC:x1 | boi_CS:x1 | boi_MC:x640 | boi_ST:x162 |