Income Taxes (Tables)
|
12 Months Ended |
Dec. 31, 2016 |
| Income Taxes |
|
| Schedule of reconciliation of the difference between the statutory federal income tax rate and the effective income tax rate |
|
|
|
|
|
|
|
|
|
|
|
|
2016
|
|
2015
|
|
2014
|
|
|
Federal statutory income tax rate
|
|
35.0
|
%
|
35.0
|
%
|
34.0
|
%
|
|
State income tax rate, net of federal tax benefit
|
|
(0.7)
|
%
|
0.7
|
%
|
0.7
|
%
|
|
Foreign income tax
|
|
—
|
%
|
0.6
|
%
|
0.1
|
%
|
|
Impairment of goodwill
|
|
(2.2)
|
%
|
—
|
%
|
—
|
%
|
|
Partnership income not subject to tax
|
|
(32.1)
|
%
|
(40.8)
|
%
|
(34.0)
|
%
|
|
Effective income tax rate
|
|
—
|
%
|
(4.5)
|
%
|
0.8
|
%
|
|
| Schedule of the components of the provision for income taxes |
|
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|
|
|
|
|
|
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|
|
|
|
|
|
2016
|
|
2015
|
|
2014
|
|
|
Current:
|
|
|
|
|
|
|
|
|
|
|
|
Federal
|
|
$
|
14,499
|
|
$
|
110
|
|
$
|
(91)
|
|
|
State
|
|
|
4,345
|
|
|
1,388
|
|
|
877
|
|
|
Foreign
|
|
|
(9)
|
|
|
253
|
|
|
188
|
|
|
Total current
|
|
|
18,835
|
|
|
1,751
|
|
|
974
|
|
|
Deferred:
|
|
|
|
|
|
|
|
|
|
|
|
Federal
|
|
|
(13,480)
|
|
|
(1,298)
|
|
|
948
|
|
|
State
|
|
|
(5,302)
|
|
|
(2,326)
|
|
|
(959)
|
|
|
Total deferred
|
|
|
(18,782)
|
|
|
(3,624)
|
|
|
(11)
|
|
|
Total
|
|
$
|
53
|
|
$
|
(1,873)
|
|
$
|
963
|
|
|
| Schedule of significant components of long-term deferred taxes |
|
|
|
|
|
|
|
|
|
|
|
|
2016
|
|
2015
|
|
|
Deferred Income Tax Assets
|
|
|
|
|
|
|
|
|
Accounts receivable allowances
|
|
$
|
1,921
|
|
$
|
2,097
|
|
|
Environmental liability
|
|
|
15,478
|
|
|
17,814
|
|
|
Asset retirement obligation
|
|
|
3,313
|
|
|
3,132
|
|
|
Deferred financing obligation
|
|
|
16,912
|
|
|
3,028
|
|
|
Deferred rent
|
|
|
—
|
|
|
40
|
|
|
UNICAP
|
|
|
225
|
|
|
747
|
|
|
Other
|
|
|
2,009
|
|
|
1,449
|
|
|
Federal net operating loss carryforwards
|
|
|
5,879
|
|
|
13,930
|
|
|
State net operating loss carryforwards
|
|
|
1,160
|
|
|
2,684
|
|
|
Federal tax credit carryforward
|
|
|
—
|
|
|
761
|
|
|
Total deferred tax assets, gross
|
|
|
46,897
|
|
|
45,682
|
|
|
Valuation allowance
|
|
|
(2,707)
|
|
|
(975)
|
|
|
Total deferred tax assets, net
|
|
$
|
44,190
|
|
$
|
44,707
|
|
|
Deferred Income Tax Liabilities
|
|
|
|
|
|
|
|
|
Property and equipment
|
|
$
|
(84,494)
|
|
$
|
(104,798)
|
|
|
Land
|
|
|
(14,119)
|
|
|
(11,527)
|
|
|
Intangible assets
|
|
|
(11,631)
|
|
|
(13,218)
|
|
|
Total deferred tax liabilities
|
|
$
|
(110,244)
|
|
$
|
(129,543)
|
|
|
Net deferred tax assets (liabilities)
|
|
$
|
(66,054)
|
|
$
|
(84,836)
|
|
|
| Reconciliation of the differences between income before income tax expense and income subject to income tax expense (in thousands) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2016
|
|
2015
|
|
2014
|
|
|
(Loss) income before income tax expense
|
|
$
|
(238,570)
|
|
$
|
41,391
|
|
$
|
117,943
|
|
|
Non—taxable loss (income)
|
|
|
224,609
|
|
|
(48,861)
|
|
|
(117,465)
|
|
|
(Loss) income subject to income tax expense
|
|
$
|
(13,961)
|
|
$
|
(7,470)
|
|
$
|
478
|
|
|
| Schedule of changes in gross unrecognized tax benefits |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2016
|
|
2015
|
|
2014
|
|
|
Balance at beginning of year
|
|
$
|
148
|
|
$
|
—
|
|
$
|
—
|
|
|
Increases for tax positions taken in prior years
|
|
|
1,572
|
|
|
148
|
|
|
—
|
|
|
Decreases for tax positions taken during the current year
|
|
|
(148)
|
|
|
—
|
|
|
—
|
|
|
Settlements of tax positons taken in prior years
|
|
|
(139)
|
|
|
—
|
|
|
—
|
|
|
Income subject to income tax expense
|
|
$
|
1,433
|
|
$
|
148
|
|
$
|
—
|
|
|