CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)
 12 Months Ended
Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of changes in accumulated other comprehensive income (loss) (AOCI) by component
Changes in AOCI by component for 2015, 2014 and 2013 are as follows (in thousands):
 
Year Ended December 31, 2015
 
Foreign
currency
translation
adjustments
 
Retirement
plans related
adjustments
 
Unrealized
gain (loss) on
cash flow
hedges
 
Accumulated
other
comprehensive
loss
Beginning balance, net of tax
$
25,913

 
$
(64,570
)
 
$
(144
)
 
$
(38,801
)
Other comprehensive loss before reclassifications
(4,598
)
 
(8,607
)
 
(212
)
 
(13,417
)
Less loss reclassified from AOCI
—

 
(2,662
)
 
(212
)
 
(2,874
)
Net other comprehensive loss
(4,598
)
 
(5,945
)
 
—

 
(10,543
)
Income tax expense (benefit)
786

 
(1,415
)
 
(2
)
 
(631
)
Ending balance, net of tax
$
20,529

 
$
(69,100
)
 
$
(142
)
 
$
(48,713
)
 
Year Ended December 31, 2014
 
Foreign
currency
translation
adjustments
 
Retirement
plans related
adjustments
 
Unrealized
gain (loss) on
cash flow
hedges
 
Accumulated
other
comprehensive
loss
Beginning balance, net of tax
$
38,663

 
$
(40,213
)
 
$
131

 
$
(1,419
)
Other comprehensive loss before reclassifications
(11,893
)
 
(27,551
)
 
(132
)
 
(39,576
)
Less (loss) income reclassified from AOCI
—

 
(1,388
)
 
149

 
(1,239
)
Net other comprehensive loss
(11,893
)
 
(26,163
)
 
(281
)
 
(38,337
)
Income tax expense (benefit)
857

 
(1,806
)
 
(6
)
 
(955
)
Ending balance, net of tax
$
25,913

 
$
(64,570
)
 
$
(144
)
 
$
(38,801
)

 
Year Ended December 31, 2013
 
Foreign
currency
translation
adjustments
 
Retirement
plans related
adjustments
 
Unrealized
gain (loss) on
cash flow
hedges
 
Accumulated
other
comprehensive
loss
Beginning balance, net of tax
$
36,830

 
$
(62,375
)
 
$
36

 
$
(25,509
)
Other comprehensive income before
reclassifications
1,939

 
21,161

 
83

 
23,183

Less (loss) income reclassified from AOCI
—

 
(2,528
)
 
6

 
(2,522
)
Net other comprehensive income
1,939

 
23,689

 
77

 
25,705

Income tax expense (benefit)
106

 
1,527

 
(18
)
 
1,615

Ending balance, net of tax
$
38,663

 
$
(40,213
)
 
$
131

 
$
(1,419
)
Schedule of reclassification out of AOCI
Details about reclassification out of AOCI for the 2015, 2014, and 2013 are as follows (in thousands):
 
 
Year Ended December 31,
 
Affected line item on the Consolidated Statements of Operations
Details of AOCI components
 
2015
 
2014
 
2013
 
Unrealized (loss) gain on cash flow hedges: 
 
 
 
 
 
 
 
 
 
 
$
(120
)
 
$
43

 
$
20

 
Sales
 
 
(92
)
 
106

 
(14
)
 
Other expense, net
 
 
(212
)
 
149

 
6

 
Total before tax
 
 
36

 
(8
)
 
(1
)
 
Tax (expense) benefit
 
 
$
(176
)
 
$
141

 
$
5

 
Net of tax
Retirement plans related adjustments:
 
 
 
 
 
 
 
 
Amortization of prior service credit
 
$
318

 
$
399

 
$
647

 
(a)
Amortization of transition asset
 
258

 
276

 
272

 
(a)
Amortization of actuarial loss
 
(3,238
)
 
(2,063
)
 
(3,447
)
 
(a)
 
 
(2,662
)
 
(1,388
)
 
(2,528
)
 
Total before tax
 
 
187

 
65

 
221

 
Tax benefit
 
 
$
(2,475
)
 
$
(1,323
)
 
$
(2,307
)
 
Net of tax
 
____________________
(a)  These AOCI components are included in the computation of net period pension and post retirement costs. See Note 14. "Employee Benefits" for details.