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cm:Concept: us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns
Standard label: Valuation Allowance for Impairment of Recognized Servicing Assets, Deductions for Aggregate Write-Downs
Name: us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns
Documentation: Amount of decrease in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from write-downs charged against the allowance.
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Debit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsAggregateWriteDowns

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Labels
Label Role Language
Valuation Allowance for Impairment of Recognized Servicing Assets, Deductions for Aggregate Write-Downs http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 860 50 50 4 (e)(3) http://fasb.org/us-gaap/role/ref/legacyRef 860

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Roll Up Relations
Part Of Roll Up:
us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsPeriodIncreaseDecrease