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Accumulated Other Comprehensive Income (Notes)
 12 Months Ended
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Comprehensive Income (Loss) Note
Accumulated Other Comprehensive Income (Loss)

Upon adoption of ASU 2016-01, Financial Instruments-Overall, the Company recorded, on January 1, 2018, a cumulative effect adjustment, net of income taxes, to increase retained earnings by $41.0 million with an offset to AOCI. Changes in Accumulated Other Comprehensive Income (Loss) (net of tax) by component are presented below (in thousands):
 
 
 
Unrecognized Pension and Post-retirement Benefit Costs
 
Net Unrealized Gains (Losses) on Marketable Securities
 
Net Losses on Cash Flow Hedges
 
Accumulated Other Comprehensive Income (Loss)
 
 
 
 
 
 
 
 
 
 
Balance at December 31, 2015
$
(29,869
)
 
$
27,765

 
$
(11,810
)
 
$
(13,914
)
 
Other comprehensive income before reclassifications
7,363

 
6,904

 
—

 
14,267

 
Amounts reclassified from accumulated other comprehensive income (loss)
(1,422
)
 
(6,206
)
 
159

 
(7,469
)
Balance at December 31, 2016
(23,928
)
 
28,463

 
(11,651
)
 
(7,116
)
 
Other comprehensive income before reclassifications
7,951

 
20,251

 
—

 
28,202

 
Amounts reclassified from accumulated other comprehensive income (loss)
(1,813
)
 
(8,524
)
 
309

 
(10,028
)
Balance at December 31, 2017
(17,790
)
 
40,190

 
(11,342
)
 
11,058

 
Cumulative effect adjustment
—

 
(41,028
)
 
—

 
(41,028
)
 
Other comprehensive loss before reclassifications
(4,589
)
 
(3,240
)
 
—

 
(7,829
)
 
Amounts reclassified from accumulated other comprehensive income (loss)
(2,544
)
 
1,136

 
423

 
(985
)
Balance at December 31, 2018
$
(24,923
)
 
$
(2,942
)
 
$
(10,919
)
 
$
(38,784
)


Amounts reclassified from Accumulated Other Comprehensive Income (Loss) for the twelve months ended December 31, 2018, 2017 and 2016 are as follows (in thousands):
Details about Accumulated Other Comprehensive Income (Loss) Components
 
2018
 
2017
 
2016
 
Affected Line Item in the Statements of Operations
 
 
 
 
 
 
 
 
 
 
 
Amortization of pension and post-retirement benefit costs:
 
 
 
 
 
 
 
 
 
Prior service benefit
 
$
9,657

 
$
9,657

 
$
7,407

 
Miscellaneous non-operating income
 
Net loss
 
(6,387
)
 
(6,776
)
 
(4,965
)
 
Miscellaneous non-operating deductions
 
 
 
 
3,270

 
2,881

 
2,442

 
Income (loss) before income taxes
 
Income tax effect
 
(726
)
 
(1,068
)
 
(1,020
)
 
Income tax (benefit) expense
 
 
 
 
2,544

 
1,813

 
1,422

 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
Marketable securities:
 
 
 
 
 
 
 
 
 
Net realized gain (loss) on sale of securities
 
(1,445
)
 
10,626

 
7,640

 
Investment and interest income, net
 
 
 
 
(1,445
)
 
10,626

 
7,640

 
Income (loss) before income taxes
 
Income tax effect
 
309

 
(2,102
)
 
(1,434
)
 
Income tax (benefit) expense
 
 
 
 
(1,136
)
 
8,524

 
6,206

 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
Loss on cash flow hedge:
 
 
 
 
 
 
 
 
 
Amortization of loss
 
(568
)
 
(532
)
 
(498
)
 
Interest on long-term debt and revolving credit facility
 
 
 
 
(568
)
 
(532
)
 
(498
)
 
Income (loss) before income taxes
 
Income tax effect
 
145

 
223

 
339

 
Income tax (benefit) expense
 
 
 
 
(423
)
 
(309
)
 
(159
)
 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
Total reclassifications
 
$
985

 
$
10,028

 
$
7,469