FAIR VALUE - Rollforward of changes in fair value of loans (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Significant Unobservable Inputs (Level 3) \| Fair Value, Recurring \| Corporate bonds
Guarantee asset
Balance at beginning of period		$ 2,113
Loans acquired		4,000
Balance at end of period	$ 0	6,215
Significant Unobservable Inputs (Level 3) \| Fair Value, Recurring \| Forward commitments and FSC
Guarantee asset
Balance at beginning of period		(9)
Loans acquired		9
Balance at end of period	0	0
Significant Unobservable Inputs (Level 3) \| Fair Value, Recurring \| Guarantee Asset
Guarantee asset
Balance at beginning of period	143	237
Loans transferred from held for investment	(5)
Fair value changes	87	(31)
Balance at end of period	235	206
Significant Unobservable Inputs (Level 3) \| Fair Value, Recurring \| IRLC, net
Guarantee asset
Balance at beginning of period	229	1,473
Loans transferred from held for investment	1,486	1,354
Loans acquired	886	1,614
Fair value changes	1,094	(743)
Balance at end of period	723	990
Significant Unobservable Inputs (Level 3) \| Fair Value, Recurring \| Equity Warrants
Guarantee asset
Balance at beginning of period	825	160
Loans acquired		242
Balance at end of period	825	402
Significant Unobservable Inputs (Level 3) \| Fair Value, Recurring \| Loans Held at Fair Value
Guarantee asset
Balance at beginning of period	23,321
Loans acquired	1,162	6,380
Fair value changes	(150)
Settlements	(3,526)
Balance at end of period	20,807	6,380
Mortgage loans held for sale
Guarantee asset
Balance at beginning of period	8,839	30,620
Loans transferred from held for investment	54,073	191,081
Fair value changes	68	667
Sales	(53,102)	(188,666)
Settlements	(5)	(39)
Balance at end of period	9,873	33,663
Loans held for sale
Guarantee asset
Balance at beginning of period	1,965	0
Loans transferred from held for investment	39,221	0
Fair value changes	(20)	0
Sales	(40,761)	0
Settlements	(405)	0
Balance at end of period	0	0
Loan Held for Investment
Guarantee asset
Balance at beginning of period	23,321	0
Loans acquired	1,162	6,380
Fair value changes	(150)	0
Net charge-offs	(392)	0
Settlements	(3,134)	0
Balance at end of period	$ 20,807	$ 6,380

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Write-Off

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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.

+ 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 issuances 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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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 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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- Definition

Amount of sale 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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- 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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- 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.

+ References

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

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