Name:	cim_CommonSharesIssuedUnderDirectPurchaseAndDividendReinvestmentPlan
Namespace Prefix:	cim_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Effective date of the specified equity distribution agreement for the sale of the entity's common shares.

No definition available.

Name:	cim_CommonStockEquityDistributionAgreementDate
Namespace Prefix:	cim_
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

Brief description of the nature and purpose of the equity distribution agreement for the sale of the entity's common shares.

No definition available.

Name:	cim_CommonStockEquityDistributionAgreementDescription
Namespace Prefix:	cim_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Number of common shares authorized for issuance under the specified equity distribution agreement.

No definition available.

Name:	cim_CommonStockEquityDistributionAgreementSharesAuthorizedForDistribution
Namespace Prefix:	cim_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The net proceeds from dividend reimbursement and share purchase plan ("DRSPP"). A DRSPP allows shareholders of record of common stock to automatically invest all or a portion of their cash distributions received on common stock in additional shares of our common stock as well as to make optional cash payments to purchase shares of our common stock. Persons who are not already shareholders may also purchase common stock under the plan through optional cash payments.

No definition available.

Name:	cim_CommonStockEquityDistributionAgreementSharesSoldInPeriod
Namespace Prefix:	cim_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The net proceeds from dividend reinvestment and share purchase plan ("DRSPP"). A DRSPP allows shareholders of record of common stock to automatically reinvest all or a portion of their cash distributions received on common stock in additional shares of our common stock as well as to make optional cash payments to purchase shares of our common stock. Persons who are not already shareholders may also purchase common stock under the plan through optional cash payments.

No definition available.

Name:	cim_NetProceedsFromDirectPurchaseAndDividendReinvestment
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Equity impact of common stock cash dividends declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.