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Accumulated Comprehensive Loss
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Accumulated Comprehensive Loss
Accumulated Comprehensive Loss
The activity for each item of accumulated other comprehensive loss is as follows (in thousands):
 
Foreign
currency items
 
Pension and
postretirement
benefits plans
 
Accumulated other
comprehensive
loss
Beginning balance, January 1, 2015
$
(16,507
)
 
$
(20,781
)
 
$
(37,288
)
Net current period change
(4,572
)
 
1,720

 
(2,852
)
Reclassification adjustments for losses reclassified into income
—

 
486

 
486

Ending balance, December 31, 2015
$
(21,079
)
 
$
(18,575
)
 
$
(39,654
)
Net current period change
(3,234
)
 
(6,347
)
 
(9,581
)
Reclassification adjustments for losses reclassified into income
—

 
390

 
390

Ending balance, December 31, 2016
$
(24,313
)
 
$
(24,532
)
 
$
(48,845
)

The related tax effects allocated to each component of other comprehensive (loss) income for the years ended December 31, 2016 and 2015 are as follows (in thousands):
2016
Before Tax
Amount
 
Tax (Expense)
Benefit
 
After Tax Amount
Retirement benefits adjustment:
 
 
 
 
 
Net actuarial loss and prior service credit
$
(6,553
)
 
$
206

 
$
(6,347
)
Reclassification of actuarial loss and prior service cost to net income
507

 
(117
)
 
390

Net unrealized loss
(6,046
)
 
89

 
(5,957
)
Cumulative translation adjustment
(3,235
)
 
1

 
(3,234
)
Total other comprehensive loss
$
(9,281
)
 
$
90

 
$
(9,191
)
 
 
 
 
 
 
2015
Before Tax
Amount
 
Tax (Expense)
Benefit
 
After Tax Amount
Retirement benefits adjustment:
 
 
 
 
 
Net actuarial gain and prior service credit
$
2,169

 
$
(449
)
 
$
1,720

Reclassification of actuarial loss and prior service cost to net income
616

 
(130
)
 
486

Net unrealized loss
2,785

 
(579
)
 
2,206

Cumulative translation adjustment
(4,596
)
 
24

 
(4,572
)
Total other comprehensive loss
$
(1,811
)
 
$
(555
)
 
$
(2,366
)