LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES (Details 7) - Loans Receivable $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($) loan	Jun. 30, 2015 USD ($) loan	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Financing Receivable, Modifications [Line Items]
Period beyond which a TDR generally becomes delinquent			90 days
Non-PCI Loans
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	$ 8,299	$ 38,217	$ 47,581	$ 39,479
Number of Loans | loan	0	0
Non-PCI Loans | Principal
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	$ 6,350	$ 13,488	39,123	13,932
Non-PCI Loans | Principal and Interest
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		18,629		19,447
Non-PCI Loans | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	795		2,781
Non-PCI Loans | Interest Deferments
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		6,000		6,000
Non-PCI Loans | Other
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	1,154	100	5,677	100
Non-PCI Loans | CRE
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	7,429	100	21,081	918
Non-PCI Loans | CRE | Principal
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	6,275	0	19,927	0
Non-PCI Loans | CRE | Principal and Interest
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		0		818
Non-PCI Loans | CRE | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	0		0
Non-PCI Loans | CRE | Interest Deferments
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		0		0
Non-PCI Loans | CRE | Other
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	1,154	100	1,154	100
Non-PCI Loans | C&I
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	75	38,117	25,098	38,280
Non-PCI Loans | C&I | Principal
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	75	13,488	18,589	13,651
Non-PCI Loans | C&I | Principal and Interest
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		18,629		18,629
Non-PCI Loans | C&I | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	0		1,986
Non-PCI Loans | C&I | Interest Deferments
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		6,000		6,000
Non-PCI Loans | C&I | Other
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	4,523	0
Non-PCI Loans | Residential
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	795	0	1,064	281
Non-PCI Loans | Residential | Principal
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	0	0	269	281
Non-PCI Loans | Residential | Principal and Interest
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		0		0
Non-PCI Loans | Residential | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	795		795
Non-PCI Loans | Residential | Interest Deferments
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment		0		0
Non-PCI Loans | Residential | Other
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment	$ 0	$ 0	0	0
Non-PCI Loans | Consumer
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment			338	0
Non-PCI Loans | Consumer | Principal
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment			338	0
Non-PCI Loans | Consumer | Principal and Interest
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment				0
Non-PCI Loans | Consumer | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment			0
Non-PCI Loans | Consumer | Interest Deferments
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment				0
Non-PCI Loans | Consumer | Other
Financing Receivable, Modifications [Line Items]
Post-Modification Outstanding Recorded Investment			$ 0	$ 0