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cm:Concept: us-gaap:DepositLiabilitiesEffectOfChangeInPresentValueAssumptionsResultingInReductionsToExpectedRecoveries
Standard label: Deposit Liabilities, Effect of Change in Present Value Assumptions Resulting in Reductions to Expected Recoveries
Name: us-gaap:DepositLiabilitiesEffectOfChangeInPresentValueAssumptionsResultingInReductionsToExpectedRecoveries
Documentation: Amount of decrease in expense from decrease in deposit liabilities due to change in present value assumptions used to value expected recoveries.
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:DepositLiabilitiesEffectOfChangeInPresentValueAssumptionsResultingInReductionsToExpectedRecoveries

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Labels
Label Role Language
Deposit Liabilities, Effect of Change in Present Value Assumptions Resulting in Reductions to Expected Recoveries http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 340 30 50 2 (b) http://fasb.org/us-gaap/role/ref/legacyRef 340