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Accumulated Other Comprehensive Income (Loss) (Tables)
 12 Months Ended
Dec. 31, 2018
Other Comprehensive Income [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income (loss) includes the following items by components for the years ended December 31, 2018, 2017 and 2016 (in thousands):
 
 
Defined Benefit Pension
 
Defined Benefit Post-Retirement
 
Foreign Currency Translation
 
Total
Balance as of January 1, 2016
 
(97,302
)
 
(315
)
 
(1,395
)
 
(99,012
)
Other comprehensive income (loss) before reclassifications:
 
 
 
 
 
 
 
 
Actuarial gain (loss) for retiree liabilities
 
18,424

 
394

 
—

 
18,818

Foreign currency translation adjustment
 
—

 
—

 
(126
)
 
(126
)
Amounts reclassified from accumulated other comprehensive income:
 
 
 
 
 
 
 
 
Plan curtailment and settlement
 
—

 
(1,997
)
 
—

 
(1,997
)
Actuarial costs (reclassified to salaries, wages and benefits)
 
13,472

 
160

 
—

 
13,632

Negative prior service cost (reclassified to salaries, wages and benefits)
 
—

 
(103
)
 
—

 
(103
)
Income Tax (Expense) or Benefit
 
(11,682
)
 
560

 
44

 
(11,078
)
Other comprehensive income (loss), net of tax
 
20,214

 
(986
)
 
(82
)
 
19,146

Balance as of December 31, 2016
 
(77,088
)
 
(1,301
)
 
(1,477
)
 
(79,866
)
Other comprehensive income (loss) before reclassifications:
 
 
 
 
 
 
 
 
Actuarial gain (loss) for retiree liabilities
 
3,116

 
63

 
—

 
3,179

Foreign currency translation adjustment
 
—

 
—

 
195

 
195

Amounts reclassified from accumulated other comprehensive income:
 
 
 
 
 
 
 
 
Plan curtailment and settlement
 
12,923

 
—

 
—

 
12,923

Actuarial costs (reclassified to salaries, wages and benefits)
 
7,778

 
283

 
—

 
8,061

Negative prior service cost (reclassified to salaries, wages and benefits)
 
—

 
(51
)
 
—

 
(51
)
Income Tax (Expense) or Benefit
 
(7,304
)
 
(91
)
 
(66
)
 
(7,461
)
Other comprehensive income (loss), net of tax
 
16,513

 
204

 
129

 
16,846

Balance as of December 31, 2017
 
(60,575
)
 
(1,097
)
 
(1,348
)
 
(63,020
)
Other comprehensive income (loss) before reclassifications:
 
 
 
 
 
 
 
 
Actuarial gain (loss) for retiree liabilities
 
(41,051
)
 
117

 
—

 
(40,934
)
Foreign currency translation adjustment
 
—

 
—

 
(171
)
 
(171
)
Amounts reclassified from accumulated other comprehensive income:
 
 
 
 
 
 
 
 
Actuarial costs (reclassified to salaries, wages and benefits)
 
3,547

 
219

 
—

 
3,766

Income Tax (Expense) or Benefit
 
9,037

 
(80
)
 
40

 
8,997

Other comprehensive income (loss), net of tax
 
(28,467
)
 
256

 
(131
)
 
(28,342
)
Balance as of December 31, 2018
 
(89,042
)
 
(841
)
 
(1,479
)
 
(91,362
)