EMPLOYEE BENEFITS (Fair Value of Plan Assets) (Details) (Pension Plan [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	$ 92,219	$ 75,276	$ 65,267
Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	82,610	65,253
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	58,185	55,060
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	15,662	10,193
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,763	0
Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	4,489	4,830
Corporate Bonds [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	4,489	4,830
Corporate Bonds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Corporate Bonds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	4,489	4,830
Corporate Bonds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Redeemable Preferred Stocks [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	1,381	1,113
Redeemable Preferred Stocks [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	1,381	1,113
Redeemable Preferred Stocks [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	1,381	1,113
Redeemable Preferred Stocks [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Redeemable Preferred Stocks [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Unaffiliated Common Stock [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	39,481	41,091
Unaffiliated Common Stock [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	39,481	41,091
Unaffiliated Common Stock [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Unaffiliated Common Stock [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Bond and Mortgage Separate Account Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,657	0
Bond and Mortgage Separate Account Fund [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,657
Bond and Mortgage Separate Account Fund [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
Bond and Mortgage Separate Account Fund [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,657
Bond and Mortgage Separate Account Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
U.S. Property Separate Account Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,763	0
U.S. Property Separate Account Fund [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,763
U.S. Property Separate Account Fund [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
U.S. Property Separate Account Fund [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0
U.S. Property Separate Account Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	8,763
Arbitrage Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,516	5,363
Arbitrage Fund [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,516	5,363
Arbitrage Fund [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Arbitrage Fund [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	5,516	5,363
Arbitrage Fund [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Money Market Funds [Member] | Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	17,323	12,856
Money Market Funds [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	17,323	12,856
Money Market Funds [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	0	0
Money Market Funds [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets measured at fair value	$ 0	$ 0