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cm:Abstract: us-gaap:MovementInAuctionMarketPreferredSecuritiesSharesOutstandingRollForward
Standard label: Movement in Auction Market Preferred Securities, Shares Outstanding [Roll Forward]
Name: us-gaap:MovementInAuctionMarketPreferredSecuritiesSharesOutstandingRollForward
Documentation: A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.
Object type: cm:Abstract
Data type: Text/String (xbrli:stringItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:MovementInAuctionMarketPreferredSecuritiesSharesOutstandingRollForward

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Labels
Label Role Language
Movement in Auction Market Preferred Securities, Shares Outstanding [Roll Forward] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic