EMPLOYEE BENEFIT PLANS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Change in plan assets:
Fair value of plan assets at end of year	$ 45,178	$ 42,518
Pension Benefits
Change in benefit obligations:
Benefit obligations at beginning of year	72,824	66,645
Interest cost	2,880	3,189
Actuarial (gain) loss	(5,193)	7,218
Benefits paid	(4,420)	(4,228)
Benefit obligations at end of year	66,091	72,824
Change in plan assets:
Fair value of plan assets at beginning of year	42,518	39,053
Actual return on plan assets	4,691	5,336
Employer contributions	2,389	2,357
Benefits paid	(4,420)	(4,228)
Fair value of plan assets at end of year	45,178	42,518
Funded status	(20,913)	(30,306)
Accumulated Benefit Obligations	$ 66,091	$ 72,824
Weighted average assumption used to determine benefit obligations
Expected long-term return on plan assets (as a percent)	7.00%	7.50%
Pension Benefits | Minimum
Weighted average assumption used to determine benefit obligations
Discount rate (as a percent)	4.68%	3.87%
Pension Benefits | Maximum
Weighted average assumption used to determine benefit obligations
Discount rate (as a percent)	4.92%	4.16%