Entity information:
Income Taxes

Impact of U.S. Federal Income Tax Reform

In December, 2017, the “Tax Cuts and Jobs Act” (the “Tax Act”) was signed into law. The significant provisions impacting the Company are as follows:

Effective January 1, 2018, the U.S. corporate income tax rate reduced from 35.0 percent to 21.0 percent;
the Company recognized a one-time tax benefit of $74.7 million due to the remeasurement of deferred tax balances to the new statutory rate;
the Company is eligible to claim 100 percent bonus depreciation on qualified property placed in service from September 28, 2017 through December 31, 2022 - this provision phases out 20 percent annually after 2022 through 2027.

ASC 740, Income Taxes, requires companies to recognize the effect of the tax law changes in the period of enactment. On December 22, 2017, the SEC staff issued Staff Accounting Bulletin ("SAB") 118 which allows companies to record provisional amounts during a one-year measurement period in order to complete the accounting for income tax effects of the Tax Act. The Company recognized provisional estimates which may be impacted by the Company’s understanding and application of the Tax Act related to the deductibility of acquired assets, state conformity and additional guidance from federal and state agencies as well as the FASB and the SEC. We are continuing to assess the tax effects of the Tax Act, but do not anticipate that the net impact will be material to our 2018 effective tax rate.

The Company is subject to income taxation in the United States, foreign countries and various state jurisdictions in which it operates. In accordance with income tax reporting accounting standards, the Company recognizes tax benefits or expense on the temporary differences between the financial reporting and tax bases of its assets and liabilities.
Components of Income before Income Taxes from Continuing Operations
The components of income before taxes for domestic and foreign operations consisted of the following (in thousands):
 
 
Twelve Months Ended December 31,
 
 
2017
 
2016
 
2015
Domestic
 
$
176,853

 
$
329,818

 
$
331,813

Foreign
 
18,693

 
16,140

 
14,906

Total
 
$
195,546

 
$
345,958

 
$
346,719



Income Tax Provision/(Benefit)

The provision for income taxes is composed of the following (in thousands):
 
Year Ended December 31,
 
2017
 
2016
 
2015
Current:
 
 
 
 
 
Federal
$
(44,385
)
 
$
89,014

 
$
108,119

State
664

 
5,204

 
6,501

Foreign
558

 
1,262

 
996

Total current
(43,163
)
 
95,480

 
115,616

Deferred:
 
 
 
 
 
Federal
40,816

 
27,950

 
9,458

State
1,962

 
1,673

 
125

Foreign
1,029

 
1,265

 
1,190

Total deferred
43,807

 
30,888

 
10,773

Total income tax provision
$
644

 
$
126,368

 
$
126,389



Reconciliation of Effective Tax Rate
The effective tax rate on income before income taxes differed from the federal statutory income tax rate as follows (in thousands):
 
Year Ended December 31,
 
2017
 
2016
 
2015
Income tax expense at federal statutory rate
$
68,441

 
$
121,085

 
$
121,352

State income taxes, net of federal income tax benefit
2,723

 
5,487

 
4,293

Federal tax reform impact
(74,738
)
 

 

Other
4,218

 
(204
)
 
744

Total income tax expense
$
644

 
$
126,368

 
$
126,389


Deferred Taxes
The major components of the Company’s net deferred tax assets and liabilities are as follows (in thousands):
 
As of December 31,
 
2017
 
2016
Deferred tax assets:
 
 
 
Accrued vacation
$
690

 
$
1,183

Accrued bonus
628

 
9,340

State taxes
318

 
2,187

Accrued property taxes
1,573

 
2,077

Other
3,679

 
1,910

Stock-based compensation expense
1,983

 
3,126

Net operating loss
635

 

Less: valuation allowance
422

 

Total deferred tax assets
9,084

 
19,823

Deferred tax liabilities:
 
 
 
Prepaid expenses
4,275

 
5,049

Depreciation
118,743

 
86,981

Foreign deferred
4,569

 
3,131

Total deferred tax liabilities
127,587

 
95,161

Net deferred tax liabilities
$
118,503

 
$
75,338


Net Operating Loss and Tax Credit Carryforwards
At December 31, 2017, the Company recognized $0.2 million of state net operating loss carryforward which will expire between 2032 and 2037. The Company also recognized $0.4 million of foreign net operating loss carryforward which does not expire.

As of December 31, 2016, the Company recognized a federal capital loss carryforward which was remeasured to $0.7 million, pursuant to the Tax Act. The carryforward begins to expire in 2021. As of December 31, 2017, the Company also recognized $0.7 million and $0.2 million of foreign tax credit and charitable contribution carryforward balances which will expire in 2028 and 2023, respectively.