Servicing rights - Amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Future amortization expense for the servicing rights
2024	$ 11,877
2025	14,078
2026	12,693
2027	11,347
2028	10,140
Thereafter	43,420
Total	$ 103,555	$ 102,837	$ 89,951

Amount of amortization expense for servicing assets after the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	rc_ServicingRightsAmortizationExpenseAfterYearFour
Namespace Prefix:	rc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for servicing assets, expected to be recognized in the remainder of the fiscal year.

+ References

No definition available.

+ Details

Name:	rc_ServicingRightsAmortizationExpenseRemainderOfFiscalYear
Namespace Prefix:	rc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for servicing assets, during the fourth fiscal year following the latest fiscal year.

+ References

No definition available.

+ Details

Name:	rc_ServicingRightsAmortizationExpenseYearFour
Namespace Prefix:	rc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for servicing assets, during the first fiscal year following the latest fiscal year

+ References

No definition available.

+ Details

Name:	rc_ServicingRightsAmortizationExpenseYearOne
Namespace Prefix:	rc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for servicing assets, during the third fiscal year following the latest fiscal year.

+ References

No definition available.

+ Details

Name:	rc_ServicingRightsAmortizationExpenseYearThree
Namespace Prefix:	rc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense for servicing assets, during the second fiscal year following the latest fiscal year.

+ References

No definition available.

+ Details

Name:	rc_ServicingRightsAmortizationExpenseYearTwo
Namespace Prefix:	rc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	rc_ServicingRightsFutureAmortizationExpenseFiscalYearMaturityAbstract
Namespace Prefix:	rc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481229/860-50-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481260/860-50-45-1

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481260/860-50-45-2

+ Details

Name:	us-gaap_ServicingAssetAtAmortizedValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant