| Standard label: | Financing Receivable, Allowance for Credit Loss, Recovery |
| Name: | us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery |
| Documentation: | Amount of recovery of financing receivables doubtful of collection that were previously charged off. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:FinancingReceivableAllowanceForCreditLossesRecovery |
| Label | Role | Language |
| Financing Receivable, Allowance for Credit Loss, Recovery | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 310 10 50 11B (c)(4) | http://fasb.org/us-gaap/role/ref/legacyRef | 310 |
| FASB Accounting Standards Codification 326 20 50 13 (e) | http://www.xbrl.org/2003/role/disclosureRef | 326 |
| FASB Accounting Standards Codification 326 20 55 79 | http://www.xbrl.org/2003/role/exampleRef | 326 |
| FASB Accounting Standards Codification 942 210 S99 1 (SX 210.9-03(7)(d)) | http://www.xbrl.org/2003/role/disclosureRef | 942 |
| Part Of Roll Up: |
| us-gaap:FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease |