Servicing rights - Estimated valuation (Details)	6 Months Ended	12 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Multi-family \| Minimum
Servicing rights, valuation assumptions
Forward prepayment assumptions	0.00%	0.00%
Forward default rate	0.00%	0.00%
Discount rate	6.00%	6.00%
Servicing expense (as a percent)	0.00%	0.00%
Multi-family \| Maximum
Servicing rights, valuation assumptions
Forward prepayment assumptions	7.30%	7.30%
Forward default rate	1.30%	1.30%
Discount rate	6.00%	6.00%
Servicing expense (as a percent)	0.80%	0.80%
Multi-family \| Weighted Average
Servicing rights, valuation assumptions
Forward prepayment assumptions	3.50%	3.50%
Forward default rate	0.90%	1.00%
Discount rate	6.00%	6.00%
Servicing expense (as a percent)	0.10%	0.10%
SBA \| Minimum
Servicing rights, valuation assumptions
Forward prepayment assumptions	9.00%	7.90%
Forward default rate	0.00%	0.00%
Discount rate	12.30%	10.00%
Servicing expense (as a percent)	0.40%	0.40%
SBA \| Maximum
Servicing rights, valuation assumptions
Forward prepayment assumptions	21.70%	21.00%
Forward default rate	10.10%	10.40%
Discount rate	19.70%	21.30%
Servicing expense (as a percent)	0.40%	0.40%
SBA \| Weighted Average
Servicing rights, valuation assumptions
Forward prepayment assumptions	9.60%	8.90%
Forward default rate	9.10%	9.10%
Discount rate	12.90%	10.70%
Servicing expense (as a percent)	0.40%	0.40%

Amount of estimated servicing expense as a percent of total servicing rights.

No definition available.

Name:	rc_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueServicingExpense
Namespace Prefix:	rc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125521744&loc=d3e122596-111746

+ Details

Name:	us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of contractually collectible principal associated with a financial asset expected not to be collected due to default by the borrower.

+ References

+ Details

Name:	us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueExpectedCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

+ References

+ Details

Name:	us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentSpeed
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_InvestmentTypeAxis=rc_MultiFamilyServicingRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rc_SbaGuaranteedLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: