DERIVATIVES AND HEDGING (Derivatives Not Designated as Hedging, by Balance Sheet Location) (Details) (USD $)	Mar. 31, 2015		Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	$ 8,798,000		$ 6,290,000
Liability Derivatives, Fair Value	8,798,000		6,290,000
Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	8,798,000		6,290,000
Liability Derivatives, Fair Value	8,798,000		6,290,000
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Notional/Contract Amount	202,859,000		163,823,000
Liability Derivatives, Notional/Contract Amount	198,980,000		167,686,000
Not Designated as Hedging Instrument [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	8,370,000	[1]	5,442,000	[1]
Not Designated as Hedging Instrument [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	7,978,000	[2]	5,323,000	[2]
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Notional/Contract Amount	140,765,000		134,512,000
Liability Derivatives, Notional/Contract Amount	140,765,000		134,512,000
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	7,624,000	[1]	5,125,000	[1]
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Loans Receivable [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	524,000		558,000
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	7,624,000	[2]	5,125,000	[2]
Not Designated as Hedging Instrument [Member] | Mortgage loan commitments [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Notional/Contract Amount	47,451,000		29,311,000
Liability Derivatives, Notional/Contract Amount	14,643,000		0
Not Designated as Hedging Instrument [Member] | Mortgage loan commitments [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	691,000	[1]	317,000	[1]
Not Designated as Hedging Instrument [Member] | Mortgage loan commitments [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	55,000	[2]	0	[2]
Not Designated as Hedging Instrument [Member] | Forward sales contracts [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Notional/Contract Amount	14,643,000		0
Liability Derivatives, Notional/Contract Amount	43,572,000		33,174,000
Not Designated as Hedging Instrument [Member] | Forward sales contracts [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives, Fair Value	55,000	[1]	0	[1]
Not Designated as Hedging Instrument [Member] | Forward sales contracts [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives, Fair Value	$ 299,000	[2]	$ 198,000	[2]

[1] Included in Other assets on the Consolidated Statements of Financial Condition, with the exception of those interest rate swaps from prior to 2009 that were not designated in hedge relationships (with a fair value of $524,000 at March 31, 2015 and $558,000 at December 31, 2014), which are included in Loans receivable.

[2] Included in Other liabilities on the Consolidated Statements of Financial Condition.