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MORTGAGE BANKING OPERATIONS - SF MSR Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Additions and amortization:
Amortization	$ 6,378	$ 9,951	$ 19,669
Changes in fair value assumptions	(414)	(16,739)	(7,379)
Ending balance	74,249
Single family
Servicing Asset at Amortized Value, Balance [Roll Forward]
Beginning balance	76,617	61,584	49,966
Additions and amortization:
Originations	3,136	8,245	23,908
Servicing Asset at Fair Value Additions Purchase	460	0	0
Amortization	(6,378)	(9,951)	(19,669)
Net additions and amortization	(2,782)	(1,706)	4,239
Changes in fair value assumptions	414	16,739	7,379
Ending balance	$ 74,249	$ 76,617	$ 61,584

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Changes in the fair value of mortgage servicing rights due to modeled amortization.

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Servicing asset at fair value additions purchase.

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Servicing Asset at Fair Value, Additions and Amortization, Net

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481229/860-50-50-3

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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481229/860-50-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 50
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-Section 45
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481260/860-50-45-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
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-URI https://asc.fasb.org//1943274/2147481260/860-50-45-1

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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
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