Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Loans Held for Investment and Loans Held for Investment at Fair Value - Activity in Allowance for loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for credit losses:
Beginning balance				$ 4,893				$ 4,262	$ 4,893	$ 4,262
Provision for loan losses	$ 827	$ 154	$ 298	636	$ (437)	$ 580	$ 279	730	1,915	1,152	$ (292)
Charge-offs, net									(2,039)	(521)
Ending balance	4,769				4,893				4,769	4,893	4,262
Allowance for Loans Individually Evaluated	974				1,096				974	1,096
Allowance related to Loans collectively evaluated	3,795				3,797				3,795	3,797
Amortized cost related to Loans individually evaluated	325,354				295,339				325,354	295,339
Amortized cost related to Loans collectively evaluated	2,507,538				2,981,945				2,507,538	2,981,945
Commercial - Purchase
Allowance for credit losses:
Beginning balance				639				385	639	385
Provision for loan losses									296	401
Charge-offs, net										(147)
Ending balance	935				639				935	639	385
Allowance for Loans Individually Evaluated	156				28				156	28
Allowance related to Loans collectively evaluated	779				611				779	611
Amortized cost related to Loans individually evaluated	28,221				22,571				28,221	22,571
Amortized cost related to Loans collectively evaluated	603,704				678,837				603,704	678,837
Commercial - Refinance
Allowance for credit losses:
Beginning balance				2,031				2,144	2,031	2,144
Provision for loan losses									6	(88)
Charge-offs, net									(232)	(25)
Ending balance	1,805				2,031				1,805	2,031	2,144
Allowance for Loans Individually Evaluated	444				517				444	517
Allowance related to Loans collectively evaluated	1,361				1,514				1,361	1,514
Amortized cost related to Loans individually evaluated	86,890				87,133				86,890	87,133
Amortized cost related to Loans collectively evaluated	712,926				819,964				712,926	819,964
Residential 1-4 Unit - Purchase
Allowance for credit losses:
Beginning balance				542				400	542	400
Provision for loan losses									180	149
Charge-offs, net									(137)	(7)
Ending balance	585				542				585	542	400
Allowance for Loans Individually Evaluated					118					118
Allowance related to Loans collectively evaluated	585				424				585	424
Amortized cost related to Loans individually evaluated	36,253				27,984				36,253	27,984
Amortized cost related to Loans collectively evaluated	474,827				560,449				474,827	560,449
Residential 1-4 Unit - Refinance
Allowance for credit losses:
Beginning balance				1,272				948	1,272	948
Provision for loan losses									(5)	429
Charge-offs, net									(11)	(105)
Ending balance	1,256				1,272				1,256	1,272	948
Allowance for Loans Individually Evaluated	245				175				245	175
Allowance related to Loans collectively evaluated	1,011				1,097				1,011	1,097
Amortized cost related to Loans individually evaluated	137,925				113,909				137,925	113,909
Amortized cost related to Loans collectively evaluated	670,224				825,396				670,224	825,396
Short Term 1-4 Unit - Purchase
Allowance for credit losses:
Beginning balance				21				43	21	43
Provision for loan losses									388	(22)
Charge-offs, net									(386)
Ending balance	23				21				23	21	43
Allowance related to Loans collectively evaluated	23				21				23	21
Amortized cost related to Loans individually evaluated	6,402				8,140				6,402	8,140
Amortized cost related to Loans collectively evaluated	34,709				61,744				34,709	61,744
Short Term 1-4 Unit - Refinance
Allowance for credit losses:
Beginning balance				$ 388				$ 342	388	342
Provision for loan losses									1,050	283
Charge-offs, net									(1,273)	(237)
Ending balance	165				388				165	388	$ 342
Allowance for Loans Individually Evaluated	129				258				129	258
Allowance related to Loans collectively evaluated	36				130				36	130
Amortized cost related to Loans individually evaluated	29,663				35,602				29,663	35,602
Amortized cost related to Loans collectively evaluated	$ 11,148				$ 35,555				$ 11,148	$ 35,555