Securitized Debt - Callable Debt (Details) - Securitized Loans $ in Thousands	Sep. 30, 2021 USD ($)
Debt Instrument, Redemption [Line Items]
Currently callable	$ 109,717
2021	257,945
2022	1,497,507
2023	1,053,870
2024	1,449,774
2025	2,575,370
Total	$ 6,944,183

- Definition

The principal amount of securitized debt collateralized by loans held for investment callable at the option of the Company.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Securitized Debt Loans Held For Investment Principal Callable In Year Five

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Securitized Debt Loans Held For Investment Principal Callable In Year Four

+ References

No definition available.

+ Details

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

- Definition

The principal amount of securitized debt collateralized by loans held for investment callable in year two following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

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Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
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- Definition

Securitized Debt Loans Held For Investment Principal Callable In Year Six

+ References

No definition available.

+ Details

Name:	cim_SecuritizedDebtLoansHeldForInvestmentPrincipalCallableInYearSix
Namespace Prefix:	cim_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Securitized Debt Loans Held for Investment Principal Callable in Year Three

+ References

No definition available.

+ Details

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

- Definition

The principal amount of securitized debt collateralized by loans held for investment callable in year three following the date of the latest balance sheet presented in the financial statements.

+ References

No definition available.

+ Details

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

- 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

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Period Type:	duration

- Details

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Namespace Prefix:
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