BALANCE SHEET OFFSETTING (Details) - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Offsetting Liabilities [Line Items]
Total		$ 76,705	$ 26,113
Derivative Asset, Collateral, Obligation to Return Cash, Offset		0	0
Derivative Asset		76,705	26,113
Derivative, Collateral, Obligation to Return Securities	[1]	24,882	6,556
Derivative, Collateral, Obligation to Return Cash		0	(8,528)
Derivative Asset, Fair Value, Amount Offset Against Collateral		51,823	11,029
Total		53,715	17,523
Derivative Liability, Collateral, Right to Reclaim Cash, Offset		0	0
Derivative Liability		53,715	17,523
Derivative, Collateral, Right to Reclaim Securities	[1]	24,882	6,556
Derivative, Collateral, Right to Reclaim Cash		25,493	173
Derivative Liability, Fair Value, Amount Offset Against Collateral		3,340	10,794
Interest Rate Swap [Member]
Offsetting Liabilities [Line Items]
Derivative Asset, Collateral, Obligation to Return Cash, Offset		0	0
Derivative Asset		23,140	8,955
Derivative, Collateral, Obligation to Return Securities		23,140	391
Derivative, Collateral, Obligation to Return Cash		0	5,527
Derivative Asset, Fair Value, Amount Offset Against Collateral		0	3,037
Derivative Liability, Collateral, Right to Reclaim Cash, Offset		0	0
Derivative Liability		197	391
Derivative, Collateral, Right to Reclaim Securities		0	391
Derivative, Collateral, Right to Reclaim Cash		197	0
Derivative Liability, Fair Value, Amount Offset Against Collateral		0	0
Loan level swaps
Offsetting Liabilities [Line Items]
Derivative Asset, Collateral, Obligation to Return Cash, Offset		0	0
Derivative Asset		52,374	15,580
Derivative, Collateral, Obligation to Return Securities		1,742	6,165
Derivative, Collateral, Obligation to Return Cash		0	3,001
Derivative Asset, Fair Value, Amount Offset Against Collateral		50,632	6,414
Derivative Liability, Collateral, Right to Reclaim Cash, Offset		0	0
Derivative Liability		52,369	15,584
Derivative, Collateral, Right to Reclaim Securities		24,882	6,165
Derivative, Collateral, Right to Reclaim Cash		25,296	173
Derivative Liability, Fair Value, Amount Offset Against Collateral		2,191	9,246
Foreign Exchange Contract [Member]
Offsetting Liabilities [Line Items]
Derivative Asset, Collateral, Obligation to Return Cash, Offset		0	0
Derivative Asset		1,191	1,578
Derivative, Collateral, Obligation to Return Securities		0	0
Derivative, Collateral, Obligation to Return Cash		0	0
Derivative Asset, Fair Value, Amount Offset Against Collateral		1,191	1,578
Derivative Liability, Collateral, Right to Reclaim Cash, Offset		0	0
Derivative Liability		1,149	1,548
Derivative, Collateral, Right to Reclaim Securities		0	0
Derivative, Collateral, Right to Reclaim Cash		0	0
Derivative Liability, Fair Value, Amount Offset Against Collateral		1,149	1,548
Other Assets [Member]
Offsetting Liabilities [Line Items]
Total	[2]		26,310
Other Assets [Member] | Loan level swaps
Offsetting Liabilities [Line Items]
Total	[2]	52,374	15,580
Other Assets [Member] | Foreign Exchange Contract [Member]
Offsetting Liabilities [Line Items]
Total	[2]	1,191	1,578
Other Assets [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Offsetting Liabilities [Line Items]
Interest Rate Derivative Assets, at Fair Value	[2]	23,140	8,955
Other Liabilities [Member]
Offsetting Liabilities [Line Items]
Total	[3]	53,923	17,523
Other Liabilities [Member] | Loan level swaps
Offsetting Liabilities [Line Items]
Total	[3]	52,369	15,584
Other Liabilities [Member] | Foreign Exchange Contract [Member]
Offsetting Liabilities [Line Items]
Total	[3]	1,149	1,548
Other Liabilities [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Offsetting Liabilities [Line Items]
Interest rate derivatives	[3]	$ 197	$ 391

[1] Reflects offsetting derivative positions with the same counterparty.

[2] All asset derivatives are located in other assets on the balance sheet

[3] All liability derivatives are located in other liabilities on the balance sheet