| r0.c0 | Condition score one/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreOne | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r0.c1 | Condition score one/First forecast year | bzk-aw-wsw-i:ConditionScoreOne | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r0.c2 | Condition score one/Second forecast year | bzk-aw-wsw-i:ConditionScoreOne | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r0.c3 | Condition score one/Third forecast year | bzk-aw-wsw-i:ConditionScoreOne | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r0.c4 | Condition score one/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreOne | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r0.c5 | Condition score one/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreOne | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r1.c0 | Condition score two/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreTwo | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r1.c1 | Condition score two/First forecast year | bzk-aw-wsw-i:ConditionScoreTwo | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r1.c2 | Condition score two/Second forecast year | bzk-aw-wsw-i:ConditionScoreTwo | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r1.c3 | Condition score two/Third forecast year | bzk-aw-wsw-i:ConditionScoreTwo | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r1.c4 | Condition score two/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreTwo | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r1.c5 | Condition score two/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreTwo | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r2.c0 | Condition score three/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreThree | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r2.c1 | Condition score three/First forecast year | bzk-aw-wsw-i:ConditionScoreThree | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r2.c2 | Condition score three/Second forecast year | bzk-aw-wsw-i:ConditionScoreThree | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r2.c3 | Condition score three/Third forecast year | bzk-aw-wsw-i:ConditionScoreThree | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r2.c4 | Condition score three/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreThree | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r2.c5 | Condition score three/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreThree | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r3.c0 | Condition score four/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreFour | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r3.c1 | Condition score four/First forecast year | bzk-aw-wsw-i:ConditionScoreFour | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r3.c2 | Condition score four/Second forecast year | bzk-aw-wsw-i:ConditionScoreFour | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r3.c3 | Condition score four/Third forecast year | bzk-aw-wsw-i:ConditionScoreFour | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r3.c4 | Condition score four/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreFour | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r3.c5 | Condition score four/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreFour | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r4.c0 | Condition score five/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreFive | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r4.c1 | Condition score five/First forecast year | bzk-aw-wsw-i:ConditionScoreFive | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r4.c2 | Condition score five/Second forecast year | bzk-aw-wsw-i:ConditionScoreFive | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r4.c3 | Condition score five/Third forecast year | bzk-aw-wsw-i:ConditionScoreFive | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r4.c4 | Condition score five/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreFive | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r4.c5 | Condition score five/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreFive | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r5.c0 | Condition score six/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreSix | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r5.c1 | Condition score six/First forecast year | bzk-aw-wsw-i:ConditionScoreSix | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r5.c2 | Condition score six/Second forecast year | bzk-aw-wsw-i:ConditionScoreSix | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r5.c3 | Condition score six/Third forecast year | bzk-aw-wsw-i:ConditionScoreSix | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r5.c4 | Condition score six/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreSix | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r5.c5 | Condition score six/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreSix | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r6.c0 | Condition score unknown/Forecast reporting year | bzk-aw-wsw-i:ConditionScoreUnknown | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r6.c1 | Condition score unknown/First forecast year | bzk-aw-wsw-i:ConditionScoreUnknown | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r6.c2 | Condition score unknown/Second forecast year | bzk-aw-wsw-i:ConditionScoreUnknown | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r6.c3 | Condition score unknown/Third forecast year | bzk-aw-wsw-i:ConditionScoreUnknown | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r6.c4 | Condition score unknown/Fourth forecast year | bzk-aw-wsw-i:ConditionScoreUnknown | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r6.c5 | Condition score unknown/Fifth forecast year | bzk-aw-wsw-i:ConditionScoreUnknown | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r7.c0 | Number to condition score/Forecast reporting year | bzk-aw-wsw-i:NumberToConditionScore | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodCurrentEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r7.c1 | Number to condition score/First forecast year | bzk-aw-wsw-i:NumberToConditionScore | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFirstPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r7.c2 | Number to condition score/Second forecast year | bzk-aw-wsw-i:NumberToConditionScore | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodSecondPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r7.c3 | Number to condition score/Third forecast year | bzk-aw-wsw-i:NumberToConditionScore | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodThirdPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r7.c4 | Number to condition score/Fourth forecast year | bzk-aw-wsw-i:NumberToConditionScore | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFourthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |
| r7.c5 | Number to condition score/Fifth forecast year | bzk-aw-wsw-i:NumberToConditionScore | xbrli:nonNegativeIntegerItemType | instant | $FinancialReportingPeriodFifthPeriodEndDateParam | $BasisOfPreparationParam | bzk-aw-wsw-dm:NonDaebAndCompoundMember |