Name:	cim_SecuritizedDebtMaturities
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The estimated amount of principal repayment of securitized debt after year five following the date of the latest balance sheet presented in the financial statements, based on expected cash flows of the residential mortgage loans or RMBS collateralizing the debt, and after adjustment for projected losses.

No definition available.

Name:	cim_SecuritizedDebtMaturitiesCalculatedRepaymentsOfPrincipalAfterYearFive
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The estimated amount of principal repayment of securitized debt within the next twelve months following the date of the latest balance sheet presented in the financial statements, based on expected cash flows of the residential mortgage loans or RMBS collateralizing the debt, and after adjustment for projected losses.

No definition available.

Name:	cim_SecuritizedDebtMaturitiesCalculatedRepaymentsOfPrincipalInNextTwelveMonths
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The estimated amount of principal repayment of securitized debt in years four and five following the date of the latest balance sheet presented in the financial statements, b based on expected cash flows of the residential mortgage loans or RMBS collateralizing the debt, and after adjustment for projected losses.

No definition available.

Name:	cim_SecuritizedDebtMaturitiesCalculatedRepaymentsOfPrincipalInYearsFourAndFive
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The estimated amount of principal repayment of securitized debt in years two and three following the date of the latest balance sheet presented in the financial statements, based on expected cash flows of the residential mortgage loans or RMBS collateralizing the debt, and after adjustment for projected losses.

No definition available.

Name:	cim_SecuritizedDebtMaturitiesCalculatedRepaymentsOfPrincipalInYearsTwoAndThree
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryAggregatedDisclosureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LongtermDebtTypeAxis=cim_SecuritizedLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: