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v3.19.3

Financial Instruments - Additional Information (Details) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018
Derivative Instruments Gain/ (Loss) [Line Items] |  |
Debt variable rate basis | LIBOR |
Account for more than 10% of the partnership's revenue |  |
Derivative Instruments Gain/ (Loss) [Line Items] |  |
Number of customers | 2 | 2

X
- Definition The number of customers. + References No definition available. + Details
Name: | cplp_NumberOfCustomers
Namespace Prefix: | cplp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_MajorCustomersAxis=cplp_GroupOfCustomersThatAccountForMoreThan10PercentOfRevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |