LOAN SERVICING RIGHTS - Changes in MSR (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Mortgage servicing rights:
Balance, beginning of period	$ 57,637	$ 56,252	$ 56,252
Impairment of loan servicing rights	8,468	25
Balance, end of period	56,909	55,787	57,637
Valuation allowances:
Balance, beginning of period	4,944	2,805	2,805
Additions	8,468	25
Balance, end of period	13,412	2,830	4,944
Mortgage servicing rights, net	43,497	52,957
Fair Value	43,497	52,957	$ 52,693	$ 53,447
Loss on mortgage servicing rights held for sale	$ (496)
Prepayment Rate	8.38%		8.20%
Discount Rate	11.43%		11.02%
Loan servicing rights	$ 44,566		$ 53,824
Mortgage servicing rights held for sale	1,460		1,972
Commercial FHA Mortgage Loans
Mortgage servicing rights:
Originated servicing		213
Amortization	(728)	(678)
Impairment of loan servicing rights	(8,500)	$ (25)
Valuation allowances:
Mortgage Loans Serviced For Others	4,010,000		4,080,000
Residential mortgage loans
Valuation allowances:
Mortgage Loans Serviced For Others	365,500		381,600
Mortgage servicing rights held for sale	1,500		2,000
SBA servicing rights
Valuation allowances:
Mortgage Loans Serviced For Others	47,800		48,200
Loan servicing rights	$ 1,100		$ 1,100

The net gain (loss)resulting from sale and other disposals of mortgage service rights held for sale.

No definition available.

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- Definition

Represents the amount of loans serviced for others that are held in the entities servicing portfolio.

+ References

No definition available.

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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 after valuation allowance for impairment of recognized servicing assets.

+ References

No definition available.

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- Definition

Aggregate amount of servicing assets held for sale.

+ References

No definition available.

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- Definition

The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
-Subparagraph (a)(6)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746

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- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745

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- Definition

Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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- Definition

Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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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

Fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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- Definition

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122596-111746

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- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

+ References

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- Definition

Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss.

+ References

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- Definition

Amount of increase (decrease) in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from expenses (recoveries) recognized.

+ References

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+ References

No definition available.

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