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MORTGAGE BANKING OPERATIONS - Revenue from Mortgage Servicing (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Servicing income, net: |  |  |
Servicing fees and other | $ 26,134 | $ 32,082 | $ 35,342
Amortization of single family MSRs | (6,378) | (9,951) | (19,669)
Amortization of multifamily and SBA MSRs | (5,778) | (7,692) | (7,581)
Net servicing income | 13,978 | 14,439 | 8,092
Risk management, single family MSRs: |  |  |
Changes in fair value of MSRs due to assumptions | 414 | 16,739 | 7,379
Total | (1,330) | (2,051) | (859)
Loan servicing income | $ 12,648 | 12,388 | 7,233
Servicing asset at fair value, other change in fair value, statement of income or comprehensive income, extensible enumeration, not disclosed flag | Changes in fair value of MSRs due to assumptions (2) |  |
Interest income from Treasury debt securities | $ 1,400 | 600 |
Servicing Contracts |  |  |
Risk management, single family MSRs: |  |  |
Net gain (loss) from economic hedging (3) | $ (1,744) | $ (18,790) | $ (8,238)

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- Definition Changes in the fair value of mortgage servicing rights due to modeled amortization. + References No definition available. + Details
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- Definition Changes in MSR fair value due to changes in model inputs and assumptions, net of risk management derivatives. + References No definition available. + Details
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- Definition The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481229/860-50-50-4 + Details
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- Definition Interest income on US treasury securities. US treasury securities are negotiable debt obligations of the US government, secured by its full faith and credit and issued at various schedules and maturities. The income from treasury securities is exempt from state and local, but not federal, taxes. There are three types of securities issued by the US treasury (bonds, bills, and notes), which are distinguished by the amount of time from the initial sale of the bond to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
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- Definition Amount of increase (decrease) from changes in fair value classified as other for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 50 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(4)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481229/860-50-50-3 + Details
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