2.2.0.7 false Consolidated Statements of Cash Flows (Unaudited) (Parenthical) (USD $) 0131 - Statement - Consolidated Statements of Cash Flows (Unaudited) (Parenthical) true false In Thousands false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 EPU Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Units Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Consolidated Statements of Cash Flows [Abstract] 0 us-gaap_StatementOfCashFlowsAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Underwriting discounts and commissions on common units 1 cpno_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissionsCommonUnits cpno false credit duration Common units - Fees and commissions from underwriting securities, private placements of securities, investment advisory and... false false false false false false false false false false false verboselabel false 1 true true false false 7223000 7223 false false false xbrli:monetaryItemType monetary Common units - Fees and commissions from underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, and other related consulting fees. Include fees and commissions from securities brokerage activities, from the sale and servicing of mutual funds, from the purchase and sale of securities and money market instruments where the bank is acting as agent for other banks or customers, and from the lending of securities owned by the bank or by bank customers (exclusive of trading revenue). Also includes the bank's proportionate share of the income or loss before extraordinary items and other adjustments from its investments in: unconsolidated subsidiaries, associated companies and corporate joint ventures, unincorporated joint ventures, general partnerships, and limited partnerships over which the bank exercises significant influence and that are principally engaged in investment banking, advisory, brokerage, or securities underwriting activities. No authoritative reference available. false 4 Underwriting discounts and commissions on Series A convertible preferred units 1 cpno_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissionsPreferredUnits cpno false credit duration Series A convertible preferred units - Fees and commissions from underwriting securities, private placements of securities,... false false false false false false false false false false false verboselabel false 1 true true false false 8935000 8935 false false false xbrli:monetaryItemType monetary Series A convertible preferred units - Fees and commissions from underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, and other related consulting fees. Include fees and commissions from securities brokerage activities, from the sale and servicing of mutual funds, from the purchase and sale of securities and money market instruments where the bank is acting as agent for other banks or customers, and from the lending of securities owned by the bank or by bank customers (exclusive of trading revenue). Also includes the bank's proportionate share of the income or loss before extraordinary items and other adjustments from its investments in: unconsolidated subsidiaries, associated companies and corporate joint ventures, unincorporated joint ventures, general partnerships, and limited partnerships over which the bank exercises significant influence and that are principally engaged in investment banking, advisory, brokerage, or securities underwriting activities. No authoritative reference available. false 1 3 false Thousands UnKnown UnKnown false true