Securitization Transactions (Schedule of Residential Loan Securitizations) (Details) - Non-QM loan securitization $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
February 2021
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	$ 251,771
November 2019 [Member]
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	267,255
June 2020 [Member]
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	259,273
November 2020
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	219,732
June 2021
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	331,777
October 2021
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	257,645
February 2022
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	417,188
April 2022
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	425,651
July 2022
Securitization Transactions [Line Items]
Total Face Amount of Certificates Issued	345,652
The Company [Member] | February 2021
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	251,771
The Company [Member] | November 2019 [Member]
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	267,255
The Company [Member] | June 2020 [Member]
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	259,273
The Company [Member] | November 2020
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	219,732
The Company [Member] | June 2021
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	331,777
The Company [Member] | October 2021
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	257,645
The Company [Member] | February 2022
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	417,188
The Company [Member] | April 2022
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	425,651
The Company [Member] | July 2022
Securitization Transactions [Line Items]
Principal Balance of Loans Transferred to the Depositor	$ 345,652