Fair Value of Financial Instruments Level 3 (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Non-Agency MBS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance as of beginning of period	$ 798
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	78	[1]
Principal payments	(757)
Balance as of end of period	152
Non-Agency MBS | Accretion (amortization)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Accretion (amortization)	189
Loans Receivable
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance as of beginning of period	4,268
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(13)	[1]
Principal payments	(1,646)
Balance as of end of period	2,617
Loans Receivable | Accretion (amortization)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Accretion (amortization)	$ (18)

[1] Change in fair value for mortgage loans is recorded within “unrealized gain (loss) on investments, net” in net income and change in fair value for other non-Agency MBS is recorded as unrealized gain (loss) in “other comprehensive income.”