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Accumulated Other Comprehensive Income (Notes)
 9 Months Ended
Sep. 30, 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):
 
 
 
Three Months Ended September 30, 2018
 
Three Months Ended September 30, 2017
 
 
 
Unrecognized Pension and Post-retirement Benefit Costs
 
Net Unrealized Gains (Losses) on Debt Securities
 
Net Losses on Cash Flow Hedges
 
Accumulated Other Comprehensive Income (Loss)
 
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 beginning of period as previously reported
$
(19,124
)
 
$
(3,478
)
 
$
(11,144
)
 
$
(33,746
)
 
$
(24,915
)
 
$
32,296

 
$
(11,514
)
 
$
(4,133
)
 
Other comprehensive income before reclassifications
—

 
(764
)
 
—

 
(764
)
 
—

 
4,768

 
—

 
4,768

 
Amounts reclassified from accumulated other comprehensive income (loss)
(599
)
 
364

 
112

 
(123
)
 
(457
)
 
(1,413
)
 
85

 
(1,785
)
Balance at end of period
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)
 
$
(25,372
)
 
$
35,651

 
$
(11,429
)
 
$
(1,150
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended September 30, 2018
 
Nine Months Ended September 30, 2017
 
 
 
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)
 
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 beginning of period as previously reported
$
(17,790
)
 
$
40,190

 
$
(11,342
)
 
$
11,058

 
$
(23,928
)
 
$
28,463

 
$
(11,651
)
 
$
(7,116
)
 
Cumulative effect adjustment
—

 
(41,028
)
 
—

 
(41,028
)
 
—

 
—

 
—

 
—

 
Other comprehensive income before reclassifications
—

 
(3,923
)
 
—

 
(3,923
)
 
—

 
14,491

 
—

 
14,491

 
Amounts reclassified from accumulated other comprehensive income (loss)
(1,933
)
 
883

 
310

 
(740
)
 
(1,444
)
 
(7,303
)
 
222

 
(8,525
)
Balance at end of period
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)
 
$
(25,372
)
 
$
35,651

 
$
(11,429
)
 
$
(1,150
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
 
Twelve Months Ended September 30, 2018
 
Twelve Months Ended September 30, 2017
 
 
 
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)
 
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 beginning of period as previously reported
$
(25,372
)
 
$
35,651

 
$
(11,429
)
 
$
(1,150
)
 
$
(31,336
)
 
$
30,731

 
$
(11,732
)
 
$
(12,337
)
 
Cumulative effect adjustment
—

 
(41,028
)
 
—

 
(41,028
)
 
—

 
—

 
—

 
—

 
Other comprehensive income before reclassifications
7,951

 
1,837

 
—

 
9,788

 
7,363

 
13,936

 
—

 
21,299

 
Amounts reclassified from accumulated other comprehensive income (loss)
(2,302
)
 
(338
)
 
397

 
(2,243
)
 
(1,399
)
 
(9,016
)
 
303

 
(10,112
)
Balance at end of period
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)
 
$
(25,372
)
 
$
35,651

 
$
(11,429
)
 
$
(1,150
)


Amounts reclassified from Accumulated Other Comprehensive Income (Loss) for the three, nine and twelve months ended September 30, 2018 and 2017 are as follows (in thousands):
Details about Accumulated Other Comprehensive Income (Loss) Components
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
Twelve Months Ended September 30,
 
Affected Line Item in the Statements of Operations
 
2018
 
2017
 
2018
 
2017
 
2018
 
2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amortization of pension and post-retirement benefit costs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Prior service benefit
 
$
2,413

 
$
2,414

 
$
7,243

 
$
7,243

 
$
9,657

 
$
9,657

 
Miscellaneous non-operating income
 
Net loss
 
(1,640
)
 
(1,695
)
 
(4,790
)
 
(5,083
)
 
(6,483
)
 
(6,516
)
 
Miscellaneous non-operating deductions
 
 
 
 
773

 
719

 
2,453

 
2,160

 
3,174

 
3,141

 
Income (loss) before income taxes
 
Income tax effect
 
(174
)
 
(262
)
 
(520
)
 
(716
)
 
(872
)
 
(1,742
)
 
Income tax (benefit) expense
 
 
 
 
599

 
457

 
1,933

 
1,444

 
2,302

 
1,399

 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Marketable securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net realized gain (loss) on sale of securities
 
(443
)
 
1,765

 
(1,108
)
 
9,122

 
396

 
11,192

 
Investment and interest income, net
 
 
 
 
(443
)
 
1,765

 
(1,108
)
 
9,122

 
396

 
11,192

 
Income (loss) before income taxes
 
Income tax effect
 
79

 
(352
)
 
225

 
(1,819
)
 
(58
)
 
(2,176
)
 
Income tax (benefit) expense
 
 
 
 
(364
)
 
1,413

 
(883
)
 
7,303

 
338

 
9,016

 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loss on cash flow hedge:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amortization of loss
 
(144
)
 
(134
)
 
(423
)
 
(396
)
 
(559
)
 
(523
)
 
Interest on long-term debt and revolving credit facility
 
 
 
 
(144
)
 
(134
)
 
(423
)
 
(396
)
 
(559
)
 
(523
)
 
Income (loss) before income taxes
 
Income tax effect
 
32

 
49

 
113

 
174

 
162

 
220

 
Income tax (benefit) expense
 
 
 
 
(112
)
 
(85
)
 
(310
)
 
(222
)
 
(397
)
 
(303
)
 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total reclassifications
 
$
123

 
$
1,785

 
$
740

 
$
8,525

 
$
2,243

 
$
10,112