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Organization - Acquisitions (Details)				1 Months Ended	9 Months Ended
Organization - Acquisitions (Details)	Mar. 16, 2022 $ / shares	Jul. 31, 2021 USD ($) shares	Mar. 19, 2021 USD ($) item $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2022 $ / shares shares	Jan. 14, 2022 $ / shares	Dec. 31, 2021 $ / shares shares	Jul. 15, 2021 $ / shares
Acquisitions
Temporary reduction in the quarterly base management fee following the effective date of the merger \| $			$ 1,000,000
Number of quarters the temporary reduction in quarterly base management fee is effective \| item			4
Common stock, par value				$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Number of common shares outstanding \| shares				114,015,355	114,015,355		75,838,050
Minimum
Acquisitions
Percentage of taxable income distributed in the form of qualifying distributions					90.00%
Series B Preferred Stock
Acquisitions
Preferred stock redemption price								$ 25.00
Series B Preferred Stock \| ANH
Acquisitions
Rate per Annum			6.25%
Series C Preferred Stock
Acquisitions
Rate per Annum					6.25%
Par Value per Share				$ 0.0001	$ 0.0001
Series C Preferred Stock \| ANH
Acquisitions
Rate per Annum			7.625%
Series D Preferred Stock
Acquisitions
Preferred stock redemption price								$ 25.00
Series A Preferred Stock \| ANH
Acquisitions
Rate per Annum			8.625%
Class B Common Stock
Acquisitions
Number of common shares outstanding \| shares				0	0
ANH
Acquisitions
Shares issued \| shares			16,774,000
Cash paid \| $			$ 60,626,000
Exchange ratio			0.1688
Cash paid per share			$ 0.61
Total purchase price \| $			$ 417,898,000
Market price as of March 19, 2021			$ 14.28
Common stock consideration \| $			$ 239,537,000
ANH \| Ready Capital Shareholders
Acquisitions
Percentage of equity interests held after closing			77.00%
ANH \| ANH Shareholders
Acquisitions
Percentage of equity interests held after closing			23.00%
ANH \| Series B Preferred Stock
Acquisitions
Shares issued \| shares			1,919,378
Market price as of March 19, 2021			$ 25.00
Rate per Annum			8.625%
Par Value per Share			$ 0.0001
Common stock consideration \| $			$ 47,984,000
ANH \| Series C Preferred Stock
Acquisitions
Shares issued \| shares			779,743
Market price as of March 19, 2021			$ 25.00
Rate per Annum			6.25%
Par Value per Share			$ 0.0001
Common stock consideration \| $			$ 19,494,000
ANH \| Series D Preferred Stock
Acquisitions
Shares issued \| shares			2,010,278
Market price as of March 19, 2021			$ 25.00
Rate per Annum			7.625%
Par Value per Share			$ 0.0001
Common stock consideration \| $			$ 50,257,000
Red Stone
Acquisitions
Cash paid \| $		$ 63,000,000
Total purchase price \| $		75,400,000
Payments for retention of key executives \| $		$ 7,000,000
Shares granted \| shares		128,533
Period over which additional purchase price payments may be made if certain hurdles are achieved		3 years
Mosaic
Acquisitions
Total purchase price \| $				$ 483,056,000
Common stock consideration \| $				$ 437,311,000
Period over which the performance of assets acquired will be measured to determine whether additional shares under the contingent equity rights are to be issued	3 years
Mosaic \| Class B-1 Common Stock
Acquisitions
Common stock, par value	$ 0.0001
Mosaic \| Class B-2 Common Stock
Acquisitions
Common stock, par value	0.0001
Mosaic \| Class B-3 Common Stock
Acquisitions
Common stock, par value	0.0001
Mosaic \| Class B-4 Common Stock
Acquisitions
Common stock, par value	$ 0.0001