Loans Receivable and Allowance for Credit Losses - Schedule Of Carrying Value Of Loans Transferred, Loans Sold and Purchased For the Held-For-Investment Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	$ 139,641	$ 119,550	$ 339,615	$ 280,026
Sales	134,624	123,889	322,791	303,421
Purchases	282,039	117,416	390,119	272,098
Writeoff	1,000	308	1,000	1,000
Originated
Loans Receivable and Allowance for Credit Losses
Sales	95,000	92,000	187,000	203,000
Loans sold in secondary market \| Purchased
Loans Receivable and Allowance for Credit Losses
Sales	40,000	32,000	136,000	100,000
Commercial lending \| C&I
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	138,923	111,396	338,897	268,272
Sales	133,906	115,735	321,108	291,667
Purchases	170,175	38,279	203,519	60,962
Commercial lending \| CRE
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	0	0	0	3,600
Sales	0	0	0	3,600
Purchases	0	0	0	0
Commercial lending \| Construction and land
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	718	8,154	718	8,154
Sales	718	8,154	718	8,154
Purchases	0	0	0	0
Consumer lending \| Single-family residential
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	0	0	0	0
Sales	0	0	965	0
Purchases	$ 111,864	$ 79,137	$ 186,600	$ 211,136

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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Amount of increase in financing receivable from purchase. Excludes net investment in lease.

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