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cm:Level3TextBlock: us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock
Standard label: Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Name: us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock
Documentation: Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.
Object type: cm:Level3TextBlock
Data type: Text Block (HTML) (nonnum:textBlockItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock
Examples of this text block disclosure: ConcentrationOfRiskByRiskFactor

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Labels
Label Role Language
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 275 10 50 16 http://fasb.org/us-gaap/role/ref/legacyRef 275
FASB Accounting Standards Codification 275 10 50 18 http://fasb.org/us-gaap/role/ref/legacyRef 275
FASB Accounting Standards Codification 275 10 50 20 http://fasb.org/us-gaap/role/ref/legacyRef 275
FASB Accounting Standards Codification 275 10 50 21 http://fasb.org/us-gaap/role/ref/legacyRef 275
FASB Accounting Standards Codification 825 10 50 20 http://fasb.org/us-gaap/role/ref/legacyRef 825
FASB Accounting Standards Codification 825 10 50 21 http://fasb.org/us-gaap/role/ref/legacyRef 825