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cm:Member: us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsMember
Standard label: SEC Schedule, 12-09, Reserve, Impairment of Recognized Servicing Asset [Member]
Name: us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsMember
Documentation: Reserve for expected decrease in value of asset representing net future revenue from contractually specified servicing fee, late charge, and other ancillary revenue, in excess of future cost from servicing arrangement.
Object type: cm:Member
Data type: [Member] (nonnum:domainItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:ValuationAllowanceForImpairmentOfRecognizedServicingAssetsMember

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Labels
Label Role Language
SEC Schedule, 12-09, Reserve, Impairment of Recognized Servicing Asset [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 235 10 S99 4 (SX 210.12-09(ColumnA)) http://www.xbrl.org/2009/role/commonPracticeRef 235