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Accumulated Other Comprehensive Income (Notes)
 9 Months Ended
Sep. 30, 2019
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, 2019
 
Three Months Ended September 30, 2018
 
 
 
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 Debt Securities
 
Net Losses on Cash Flow Hedges
 
Accumulated Other Comprehensive Income (Loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period as previously reported
$
(27,024
)
 
$
2,033

 
$
(10,702
)
 
$
(35,693
)
 
$
(19,124
)
 
$
(3,478
)
 
$
(11,144
)
 
$
(33,746
)
 
Other comprehensive income before reclassifications
—

 
454

 
—

 
454

 
—

 
(764
)
 
—

 
(764
)
 
Amounts reclassified from accumulated other comprehensive income (loss)
(1,030
)
 
(2,487
)
 
120

 
(3,397
)
 
(599
)
 
364

 
112

 
(123
)
Balance at end of period
$
(28,054
)
 
$
—

 
$
(10,582
)
 
$
(38,636
)
 
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended September 30, 2019
 
Nine Months Ended September 30, 2018
 
 
 
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
$
(24,923
)
 
$
(2,942
)
 
$
(10,919
)
 
$
(38,784
)
 
$
(17,790
)
 
$
40,190

 
$
(11,342
)
 
$
11,058

 
Cumulative effect adjustment
—

 
—

 
—

 
—

 
—

 
(41,028
)
 
—

 
(41,028
)
 
Other comprehensive income before reclassifications
—

 
4,656

 
—

 
4,656

 
—

 
(3,923
)
 
—

 
(3,923
)
 
Amounts reclassified from accumulated other comprehensive income (loss)
(3,131
)
 
(1,714
)
 
337

 
(4,508
)
 
(1,933
)
 
883

 
310

 
(740
)
Balance at end of period
$
(28,054
)
 
$
—

 
$
(10,582
)
 
$
(38,636
)
 
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
Twelve Months Ended September 30, 2019
 
Twelve Months Ended September 30, 2018
 
 
 
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
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)
 
$
(25,372
)
 
$
35,651

 
$
(11,429
)
 
$
(1,150
)
 
Cumulative effect adjustment
—

 
—

 
—

 
—

 
—

 
(41,028
)
 
—

 
(41,028
)
 
Other comprehensive income before reclassifications
(4,589
)
 
5,339

 
—

 
750

 
7,951

 
1,837

 
—

 
9,788

 
Amounts reclassified from accumulated other comprehensive income (loss)
(3,742
)
 
(1,461
)
 
450

 
(4,753
)
 
(2,302
)
 
(338
)
 
397

 
(2,243
)
Balance at end of period
$
(28,054
)
 
$
—

 
$
(10,582
)
 
$
(38,636
)
 
$
(19,723
)
 
$
(3,878
)
 
$
(11,032
)
 
$
(34,633
)


Amounts reclassified from Accumulated Other Comprehensive Income (Loss) for the three, nine and twelve months ended September 30, 2019 and 2018 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
 
2019
 
2018
 
2019
 
2018
 
2019
 
2018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amortization of pension and post-retirement benefit costs:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Prior service benefit
 
$
2,185

 
$
2,413

 
$
6,555

 
$
7,243

 
$
8,969

 
$
9,657

 
Miscellaneous non-operating income
 
Net loss
 
(854
)
 
(1,640
)
 
(2,562
)
 
(4,790
)
 
(4,159
)
 
(6,483
)
 
Miscellaneous non-operating deductions
 
 
 
 
1,331

 
773

 
3,993

 
2,453

 
4,810

 
3,174

 
Income (loss) before income taxes
 
Income tax effect
 
(301
)
 
(174
)
 
(862
)
 
(520
)
 
(1,068
)
 
(872
)
 
Income tax (benefit) expense
 
 
 
 
1,030

 
599

 
3,131

 
1,933

 
3,742

 
2,302

 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Marketable securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net realized gain (loss) on sale of securities
 
3,202

 
(443
)
 
2,232

 
(1,108
)
 
1,895

 
396

 
Investment and interest income, net
 
 
 
 
3,202

 
(443
)
 
2,232

 
(1,108
)
 
1,895

 
396

 
Income (loss) before income taxes
 
Income tax effect
 
(715
)
 
79

 
(518
)
 
225

 
(434
)
 
(58
)
 
Income tax (benefit) expense
 
 
 
 
2,487

 
(364
)
 
1,714

 
(883
)
 
1,461

 
338

 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loss on cash flow hedge:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amortization of loss
 
(153
)
 
(144
)
 
(451
)
 
(423
)
 
(596
)
 
(559
)
 
Interest on long-term debt and revolving credit facility
 
 
 
 
(153
)
 
(144
)
 
(451
)
 
(423
)
 
(596
)
 
(559
)
 
Income (loss) before income taxes
 
Income tax effect
 
33

 
32

 
114

 
113

 
146

 
162

 
Income tax (benefit) expense
 
 
 
 
(120
)
 
(112
)
 
(337
)
 
(310
)
 
(450
)
 
(397
)
 
Net income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total reclassifications
 
$
3,397

 
$
123

 
$
4,508

 
$
740

 
$
4,753

 
$
2,243