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EMPLOYEE BENEFITS (Tables)
 12 Months Ended
Dec. 31, 2015
Pension and Other Postretirement Benefit Expense [Abstract]  
Schedule Of Net Funded Status And Amounts Recognized In Balance Sheet And Accumulated Other Comprehensive Income Loss [Table Text Block]
A summary of the pension and postretirement benefits plans' funded status and amounts recognized in the Consolidated Balance Sheets is as follows (in thousands):
 
Pension Benefits
 
Postretirement
Benefits
 
December 31,
 
December 31,
 
2015
 
2014
 
2015
 
2014
Change in benefit obligation :
 

 
 

 
 

 
 

Benefit obligation at beginning of year
$
235,433

 
$
216,306

 
$
1,806

 
$
1,769

Service cost
1,953

 
1,421

 
12

 
11

Interest cost
6,676

 
8,426

 
74

 
87

Plan participants' contributions
1,516

 
1,501

 
338

 
326

Actuarial loss (gain)
(610
)
 
34,840

 
(100
)
 
10

Foreign currency impact
(2,197
)
 
(11,792
)
 
—

 
—

Benefits and administrative expenses paid
(8,619
)
 
(11,985
)
 
(447
)
 
(397
)
Settlements
(37
)
 
(3,284
)
 
—

 
—

Special termination benefits
235

 
—

 
—

 
—

Benefit obligation at end of year
234,350

 
235,433

 
1,683

 
1,806

 
 
 
 
 
 
 
 
Change in plan assets:
 

 
 

 
 

 
 

Fair value of plan assets at beginning of year
185,981

 
193,429

 
—

 
—

Actual return on plan assets
(597
)
 
14,688

 
—

 
—

Employer contributions
3,362

 
2,644

 
109

 
71

Plan participants' contributions
1,516

 
1,501

 
338

 
326

Foreign currency impact
(1,599
)
 
(11,012
)
 
—

 
—

Benefits and administrative expenses paid
(8,619
)
 
(11,985
)
 
(447
)
 
(397
)
Settlements
(37
)
 
(3,284
)
 
—

 
—

Fair value of plan assets at end of year
180,007

 
185,981

 
—

 
—

Funded status of plans
$
(54,343
)
 
$
(49,452
)
 
$
(1,683
)
 
$
(1,806
)
 
 
 
 
 
 
 
 
Amounts recognized in the Consolidated Balance Sheets consist of:
 

 
 

 
 

 
 

Non-current assets
$
1,638

 
$
2,318

 
$
—

 
$
—

Current liabilities
(264
)
 
(253
)
 
(112
)
 
(112
)
Non-current liabilities
(55,717
)
 
(51,517
)
 
(1,571
)
 
(1,694
)
Net amount recognized
$
(54,343
)
 
$
(49,452
)
 
$
(1,683
)
 
$
(1,806
)
 
 
 
 
 
 
 
 
Amounts recognized in Accumulated Other Comprehensive (Loss)
  consists of:
 

 
 

 
 

 
 

Net actuarial (loss) gain
$
(80,641
)
 
$
(75,220
)
 
$
706

 
$
657

Transition asset
249

 
500

 
—

 
—

Prior service credit
1,804

 
2,126

 
—

 
—

Accumulated other comprehensive (loss) income
(78,588
)
 
(72,594
)
 
706

 
657

Accumulated contributions in excess (deficit) of net periodic benefit cost
24,245

 
23,142

 
(2,389
)
 
(2,463
)
Net deficit recognized in Consolidated Balance Sheets
$
(54,343
)
 
$
(49,452
)
 
$
(1,683
)
 
$
(1,806
)
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
The following information is presented for pension plans where the projected benefit obligations exceeded the fair value of plan assets (in thousands):
 
Pension Benefits
 
December 31,
 
2015
 
2014
Projected benefit obligations
$
226,012

 
$
228,138

Fair value of plan assets
170,032

 
176,367

Excess of projected benefit obligations over plan assets
$
55,980

 
$
51,771
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
The following information is presented for pension plans where the accumulated benefit obligations exceeded the fair value of plan assets (in thousands):
 
Pension Benefits
 
December 31,
 
2015
 
2014
Accumulated benefit obligations
$
222,173

 
$
223,921

Fair value of plan assets
170,032

 
175,766

Excess of accumulated benefit obligations over plan assets
$
52,141

 
$
48,155
Summary of the components of net periodic pension benefit costs
A summary of the components of net periodic benefit cost for the Company, which includes an executive supplemental pension plan, is presented below (in thousands):
 
Pension Benefits
 
Postretirement Benefits
 
Year Ended December 31,
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
2015
 
2014
 
2013
Service cost
$
1,953

 
$
1,421

 
$
1,401

 
$
12

 
$
11

 
$
18

Interest cost
6,676

 
8,426

 
7,380

 
74

 
87

 
92

Expected return on plan assets
(9,555
)
 
(9,892
)
 
(9,464
)
 
—

 
—

 
—

Amortization of prior service credit
(318
)
 
(399
)
 
(393
)
 
—

 
—

 
(254
)
Amortization of transition asset
(258
)
 
(276
)
 
(272
)
 
—

 
—

 
—

Settlement loss
16

 
810

 
229

 
—

 
—

 
—

Special termination benefits
235

 
—

 
—

 
—

 
—

 
—

Curtailment gain
—

 
(409
)
 
—

 
—

 
—

 
—

Amortization of loss (gain)
3,273

 
1,719

 
3,223

 
(51
)
 
(57
)
 
(5
)
Net periodic benefit cost (income)
$
2,022

 
$
1,400

 
$
2,104

 
$
35

 
$
41

 
$
(149
)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
A summary of the changes in pension and postretirement benefits recognized in other comprehensive (income) loss is presented below (in thousands):
 
Pension Benefits
 
Postretirement Benefits
 
Year Ended December 31,
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
2015
 
2014
 
2013
Net loss (gain) arising during year
$
9,543

 
$
30,044

 
$
(20,977
)
 
$
(100
)
 
$
10

 
$
(452
)
Amortization of transition asset
258

 
286

 
272

 
—

 
—

 
—

Amortization of prior service credit
318

 
808

 
393

 
—

 
—

 
254

Other gain
—

 
—

 
—

 
—

 
—

 
—

Amortization of (gain) loss
(3,289
)
 
(2,539
)
 
(3,452
)
 
51

 
57

 
5

Foreign currency exchange impact
(835
)
 
(2,503
)
 
268

 
—

 
—

 
—

Total recognized in other comprehensive
   (income) loss
5,995

 
26,096

 
(23,496
)
 
(49
)
 
67

 
(193
)
Net recognized in net periodic benefit cost and
   other comprehensive (income) loss
$
8,017

 
$
27,496

 
$
(21,392
)
 
$
(14
)
 
$
108

 
$
(342
)
Schedule of Assumptions Used [Table Text Block]
Actuarial assumptions used to determine pension costs and other postretirement benefit costs include:
 
Pension Benefits
 
Postretirement Benefits
 
2015
 
2014
 
2013
 
2015
 
2014
 
2013
Assumptions at January 1
 
 
 
 
 
 
 
 
 

 
 

For the domestic plans:
 
 
 
 
 
 
 
 
 

 
 

Discount rate
4.28
%
 
5.24
%
 
4.31
%
 
4.23
%
 
5.13
%
 
4.21
%
Expected return on plan assets
7.50
%
 
7.50
%
 
7.75
%
 
N/A

 
N/A

 
N/A

For the foreign plans:
 

 
 

 
 

 
 

 
 

 
 

Weighted average discount rate
1.21
%
 
1.43
%
 
2.75
%
 
 

 
 

 
 

Weighted average expected return on plan assets
3.95
%
 
3.91
%
 
3.91
%
 
 

 
 

 
 

Weighted average rate of compensation increase
1.52
%
 
1.76
%
 
1.76
%
 
 

 
 

 
 

Actuarial assumptions used to determine pension obligations and other postretirement benefit obligations include:
 
Pension Benefits
 
Postretirement
Benefits
 
2015
 
2014
 
2015
 
2014
Assumptions at December 31
 
 
 
 
 
 
 
For the domestic plans:
 
 
 
 
 
 
 
Discount rate
4.75
%
 
4.28
%
 
4.69
%
 
4.23
%
For the foreign pension plans:
 

 
 

 
 

 
 

Weighted average discount rate
1.21
%
 
1.43
%
 
 

 
 

Weighted average rate of compensation increase
1.52
%
 
1.76
%
 
 

 
 
Schedule of Expected Benefit Payments [Table Text Block]
The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid (in thousands):
Year
 
Pension Benefits
 
Postretirement Benefits
2016
 
$
9,467

 
$
112

2017
 
10,299

 
118

2018
 
10,925

 
122

2019
 
11,626

 
128

2020
 
11,166

 
129

Thereafter
 
60,759

 
551