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, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	$ 102,214	$ 139,641	$ 138,408	$ 339,615
Sales	90,737	134,624	128,747	322,791
Purchases	288,017	282,039	530,041	390,119
Write-offs of allowance for loan losses related to loans transferred to held-for-sale	0	1,000	2,000	1,000
Originated
Loans Receivable and Allowance for Credit Losses
Sales	91,000	95,000	125,000	187,000
Loans sold in secondary market | Purchased
Loans Receivable and Allowance for Credit Losses
Sales	0	40,000	4,000	136,000
Commercial lending | C&I
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	102,214	138,923	108,570	338,897
Sales	90,341	133,906	96,697	321,108
Purchases	142,687	170,175	279,630	203,519
Commercial lending | CRE
Loans Receivable and Allowance for Credit Losses
Loans transferred from held-for-investment to held-for-sale	0	0	20,338	0
Sales	0	0	20,338	0
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	0	718	9,500	718
Sales	0	718	11,316	718
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	396	0	396	965
Purchases	$ 145,330	$ 111,864	$ 250,411	$ 186,600