BENEFIT PLANS (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Number of funded, noncontributory defined benefit pension plans	3
Number of unfunded, nonqualified pension plans	3
Normal retirement age	65
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
One-time curtailment gain	$ 0	$ 3,832