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MORTGAGE BANKING OPERATIONS - SF MSR Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Additions and amortization:
Amortization	$ 9,951	$ 19,669	$ 17,754
Changes in fair value assumptions	(16,739)	(7,379)	19,955
Ending balance	76,617
Single family
Servicing Asset at Amortized Value, Balance [Roll Forward]
Beginning balance	61,584	49,966	68,109
Additions and amortization:
Originations	8,245	23,908	19,424
Amortization	(9,951)	(19,669)	(17,754)
Net additions and amortization	(1,706)	4,239	1,670
Changes in fair value assumptions	16,739	7,379	(19,813)
Ending balance	$ 76,617	$ 61,584	$ 49,966

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- Definition

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

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 3
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (b)
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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.

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