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Basis of Presentation and General Information - Additional Information (Details) | Jun. 30, 2019
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Property Plant And Equipment |
Number of vessels | 11
Neo Panamax Container Carrier Vessels |
Property Plant And Equipment |
Number of vessels | 10
Capesize Bulk Carrier |
Property Plant And Equipment |
Number of vessels | 1

X
- Definition Number of vessels owned and/ or to be acquired by the partnership. + References No definition available. + Details
Name: | cplp_NumberOfVessels
Namespace Prefix: | cplp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cplp_NeoPanamaxContainerCarrierVesselsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cplp_CapesizeBulkCarrierMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |