| Name | ReceivablesBWSSubsidiesNoncurrentMember |
|---|---|
| Namespace | http://www.nltaxonomie.nl/nt14/bzk/20191211.a/dictionary/bzk-ww-domains |
| Prefix | bzk-ww-dm |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | sbr:domainMemberItem |
| Balance | None |
| Nillable | False |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Abzurufende BWS-Subventionen (langfristig) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Receivables BWS subsidies (non-current) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Subventions BWS à recevoir (long terme) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Te vorderen BWS-subsidies (langlopend) | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Abzurufende BWS-Subventionen | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Receivables BWS subsidies | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Subventions BWS à recevoir | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Te vorderen BWS-subsidies | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Article | 15 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2018-01-01 | http://www.xbrl.org/2003/role/reference |
| Name | Regeling toegelaten instellingen volkshuisvesting 2015 | http://www.xbrl.org/2003/role/reference |
| Paragraph | 1 | http://www.xbrl.org/2003/role/reference |
| Chapter | 645 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2019-01-01 | http://www.xbrl.org/2003/role/reference |
| Name | Richtlijnen voor de jaarverslaggeving | http://www.xbrl.org/2003/role/reference |
| Paragraph | 301 | http://www.xbrl.org/2003/role/reference |
| Name | Relation Type | Role | |
|---|---|---|---|
bzk-ww-i:ReceivablesBWSSubsidiesNoncurrent | ConceptMemberEquivalence | http://www.xbrl.org/2008/role/link | |
bzk-ww-abstr:Section3_4Title | parent-child | urn:bzk-ti:linkrole:notes-consolidated-balance-sheet-income-statement |