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Loans Receivable and Allowance for Credit Losses - Loans Purchases, Sales and Transfers (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Loans transferred from held-for-investment to held-for-sale | $ 739,379 | $ 623,777 | $ 599,610
Loans transferred from held-for-sale to held-for-investment |  | 631 |
Sales | 769,822 | 595,767 | 621,543
Purchases | 599,775 | 657,270 | 1,041,711
Writeoff | 5,000 | 3,000 | 12,000
Loans Sold in Secondary Market | Loans receivable, purchased |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Sales | 256,000 | 208,000 | 208,000
Commercial And Industrial Loan And Commercial Real Estate Loan | Loans receivable, originated |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Sales | 513,000 | 388,000 | 413,000
Commercial Lending | C&I |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Loans transferred from held-for-investment to held-for-sale | 647,943 | 530,524 | 496,655
Loans transferred from held-for-sale to held-for-investment |  | 0 |
Sales | 674,919 | 501,289 | 502,694
Purchases | 106,493 | 363,549 | 476,690
Commercial Lending | CRE |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Loans transferred from held-for-investment to held-for-sale | 83,282 | 88,075 | 78,834
Loans transferred from held-for-sale to held-for-investment |  | 0 |
Sales | 86,749 | 88,075 | 78,834
Purchases | 0 | 0 | 0
Commercial Lending | Residential loan | Multifamily Residential |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Loans transferred from held-for-investment to held-for-sale | 0 | 0 | 0
Loans transferred from held-for-sale to held-for-investment |  | 0 |
Sales | 0 | 0 | 0
Purchases | 0 | 0 | 370
Commercial Lending | Construction and land |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Loans transferred from held-for-investment to held-for-sale | 8,154 | 0 | 18,883
Loans transferred from held-for-sale to held-for-investment |  | 0 |
Sales | 8,154 | 0 | 21,557
Purchases | 0 | 0 | 0
Consumer Lending | Residential loan | Single-Family Residential |  |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |  |
Loans transferred from held-for-investment to held-for-sale | 0 | 5,178 | 5,238
Loans transferred from held-for-sale to held-for-investment |  | 631 |
Sales | 0 | 6,403 | 18,458
Purchases | $ 493,282 | $ 293,721 | $ 564,651

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