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FAIR VALUE MEASUREMENT - Schedule of Fair Value Changes and Activity for Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest rate lock commitments
Fair Value Changes and Activity for Level 3 [Roll Forward]
Settlements	$ (752)	$ (6,583)	$ (2,075)	$ (21,895)
Change in mark to market	70	5,299	(769)	9,112
Investment securities AFS
Fair Value Changes and Activity for Level 3 [Roll Forward]
Beginning balance	2,160	2,550	2,482	2,710
Additions	0	0	0	0
Transfers	0	0	0	0
Settlements	(48)	(48)	(145)	(144)
Change in mark to market	(79)	12	(304)	(52)
Ending balance	2,033	2,514	2,033	2,514
Single family LHFI
Fair Value Changes and Activity for Level 3 [Roll Forward]
Beginning balance	6,508	5,207	7,287	7,108
Additions	0	284	0	1,429
Transfers	0	0	0	0
Settlements	0	(1,088)	0	(4,279)
Change in mark to market	(658)	104	(1,437)	249
Ending balance	$ 5,850	$ 4,507	$ 5,850	$ 4,507

X

- Definition

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

+ References

No definition available.

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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-SubTopic 10
-Section 50
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- Definition

Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

+ References

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- Definition

Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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-SubTopic 10
-Section 50
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