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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense (Benefit)
The following table presents the 2018, 2017 and 2016 income tax expense (benefit):
 
Year Ended December 31
 
2018(1)
 
2017(2)
 
2016(3)
 
(In thousands)
Current income taxes:
 
 
 
 
 
Federal
$
(258
)
 
$
(1,315
)
 
$
49,529

State
33

 
1,317

 
5,728

Foreign
(554
)
 
844

 
879

Total current income tax expense (benefit)
(779
)
 
846

 
56,136

Deferred income taxes:
 
 
 
 
 
Federal
(49,115
)
 
(38,100
)
 
15,164

State
7,611

 
11,075

 
10,734

Total deferred income tax expense (benefit)
(41,504
)
 
(27,025
)
 
25,898

Total income tax expense (benefit)
$
(42,283
)
 
$
(26,179
)
 
$
82,034

(1)
Excludes $5.9 million of income tax benefit related to discontinued operations.
(2)
Excludes $14.2 million of income tax benefit related to discontinued operations.
(3)
Excludes $0.5 million of income tax expense related to discontinued operations.
Schedule of Reconciliation of Income Taxes
The following is a reconciliation of income tax expense (benefit) computed at the U.S. federal statutory tax rate to income tax expense (benefit) reported in our Consolidated Statements of Operations:
 
Year Ended December 31
 
2018
 
2017
 
2016
 
Amount
 
Percentage
 
Amount
 
Percentage
 
Amount
 
Percentage
 
(In thousands, except percentages)
Tax expense (benefit) at statutory rate
$
(78,648
)
 
21.0
 %
 
$
7,435

 
35.0
 %
 
$
70,928

 
35.0
 %
State income taxes
(17,159
)
 
4.6

 
1,844

 
8.7

 
9,620

 
4.8

Corporate owned life insurance
(85
)
 
—

 
(933
)
 
(4.4
)
 
—

 
—

Nondeductible executive compensation
566

 
(0.1
)
 
371

 
1.8

 
1,130

 
0.6

Impairment
35,109

 
(9.4
)
 
—

 
—

 
—

 
—

Change in valuation allowances
17,355

 
(4.6
)
 
5,851

 
27.5

 
1,080

 
0.5

Share-based compensation(1)
1,073

 
(0.3
)
 
2,995

 
14.1

 
—

 
—

Domestic production activities deduction
—

 
—

 
(244
)
 
(1.2
)
 
(4,393
)
 
(2.2
)
Transition tax on unrepatriated foreign earnings
—

 
—

 
2,106

 
9.9

 
—

 
—

Tax reform revaluation of deferred taxes
—

 
—

 
(45,840
)
 
(215.8
)
 
—

 
—

Other
(494
)
 
0.1

 
236

 
1.2

 
3,669

 
1.8

Total
$
(42,283
)
 
11.3
 %
 
$
(26,179
)
 
(123.2
)%
 
$
82,034

 
40.5
 %

(1)
Includes excess tax benefits and deficiencies related to share-based payments recorded in the provision of income taxes because of the adoption of ASU 2016-09, Compensation — Stock Compensation — Improvements to Employee Share-Based Payment Accounting in 2017.
Schedule of Deferred Income Tax Assets (Liabilities)
The tax effects of temporary differences giving rise to deferred income tax assets (liabilities) were:
 
December 31
 
2018(1)
 
2017(2)
 
(In thousands)
Deferred income tax assets:
 
 
 
Accrued liabilities
$
54,906

 
$
54,971

Retirement plans and postretirement benefits
12,190

 
10,379

Share-based compensation
2,343

 
3,886

Receivables and inventories
6,789

 
6,651

Derivative financial instruments
1,075

 
99

Net operating loss carryforwards
61,009

 
38,023

Tax credits and other carryforwards
23,195

 
9,965

Valuation allowances
(40,966
)
 
(21,755
)
 
120,541

 
102,219

Deferred income tax liabilities:
 
 
 
Property, plant and equipment
(113,272
)
 
(124,185
)
Intangible assets
(14,475
)
 
(22,213
)
Cancellation of debt
—

 
(1,708
)
Other
(3,983
)
 
(3,400
)
 
(131,730
)
 
(151,506
)
Net deferred income tax asset (liability)
$
(11,189
)
 
$
(49,287
)
(1)
Includes $5.4 million of deferred tax assets related to uncertain tax positions.
(2)
Includes $7.0 million of deferred tax assets related to uncertain tax positions.
Schedule of Balance Sheet Classification of Net Deferred Income Tax Assets (Liabilities)
These net deferred income tax assets (liabilities) are classified in our Consolidated Balance Sheets as follows:
 
December 31
 
2018
 
2017
 
(In thousands)
Noncurrent assets
$
2,518

 
$
10,731

Noncurrent liabilities
(13,707
)
 
(60,018
)
Total
$
(11,189
)
 
$
(49,287
)
Schedule of Reconciliation of Gross Unrecognized Tax Benefits
The following is a reconciliation of gross unrecognized tax benefits, including interest, recorded in our Consolidated Balance Sheets:
 
December 31
 
2018
 
2017
 
2016
 
(In thousands)
Balance at beginning of year
$
15,054

 
$
30,410

 
$
27,829

Increases in tax positions for current year
211

 
251

 
125

Increases in tax positions for prior years
244

 
904

 
4,542

Decreases in tax positions for prior years
(5,842
)
 
(53
)
 
(199
)
Settlement of tax matters
(217
)
 
—

 
(1,887
)
Lapse of applicable statutes of limitations
—

 
(16,458
)
 
—

Balance at end of year
$
9,450

 
$
15,054

 
$
30,410