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REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)									$ 5,604	$ 6,569	$ 6,322
Noninterest Income (out-of-scope of Topic 606)									18,311	38,101	92,308
Total noninterest income	$ 2,448	$ 4,824	$ 8,061	$ 8,582	$ 5,695	$ 18,365	$ 5,707	$ 14,903	23,915	44,670	98,630
Deposit Service Fees
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)									3,000	2,947	2,567
Debit Card Fees
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)									659	1,698	1,873
Investment Commissions
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)									1,625	1,893	1,877
Other
Disaggregation of Revenue [Line Items]
Noninterest Income (in-scope of Topic 606)									$ 320	$ 31	$ 5

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Revenue Not From Contract With Customer

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13)
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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-Name Accounting Standards Codification
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