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Income Taxes | 12 Months Ended
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Dec. 31, 2013
Income Tax Disclosure [Abstract] |
Income Taxes | Note 5. Income Taxes The components of the provision for income taxes are as follows:
|  | Year Ended December 31,
(In thousands) |  | 2013 |  | 2012 |  | 2011
Current: |  |  |  |  |  |
Federal |  | $ | 74,202 |  |  | $ | 74,074 |  |  | $ | 27,470 |
State |  | 15,635 |  |  | 11,890 |  |  | 9,796 |
|  | 89,837 |  |  | 85,964 |  |  | 37,266 |
Deferred: |  |  |  |  |  |
Federal |  | 28,593 |  |  | 14,978 |  |  | 39,934 |
State |  | 4,143 |  |  | 2,704 |  |  | 3,414 |
|  | 32,736 |  |  | 17,682 |  |  | 43,348 |
Total provision for income taxes |  | $ | 122,573 |  |  | $ | 103,646 |  |  | $ | 80,614 |
The following is a reconciliation of the U.S. statutory federal income tax rates with our effective income tax rates for 2013, 2012 and 2011:
|  | Year Ended December 31,
(In thousands) |  | 2013 |  | 2012 |  | 2011
Tax provision at statutory rate |  | $ | 115,040 |  |  | $ | 95,584 |  |  | $ | 77,029 |
State income taxes, net of federal benefit |  | 12,083 |  |  | 10,211 |  |  | 7,480 |
Meals and entertainment disallowance |  | 872 |  |  | 828 |  |  | 721 |
Tax credits |  | (5,422 | ) |  | (2,609 | ) |  | (4,453 | )
Other, net |  | — |  |  | (368 | ) |  | (163 | )
Total provision for income taxes |  | $ | 122,573 |  |  | $ | 103,646 |  |  | $ | 80,614 |
Deferred tax assets and liabilities consist of the following:
|  | December 31,
(In thousands) |  | 2013 |  | 2012
Deferred tax assets: |  |  |  |
Claims and insurance reserves |  | $ | 35,200 |  |  | $ | 32,499 |
Allowance for doubtful accounts |  | 1,595 |  |  | 2,829 |
Accrued vacation |  | 14,873 |  |  | 12,399 |
Deferred compensation |  | 22,067 |  |  | 17,734 |
Other |  | 10,648 |  |  | 9,764 |
Total deferred tax assets |  | 84,383 |  |  | 75,225 |
Valuation allowance |  | (460 | ) |  | (559 | )
Net deferred tax assets |  | 83,923 |  |  | 74,666 |
Deferred tax liabilities: |  |  |  |
Depreciation and amortization |  | (239,971 | ) |  | (197,875 | )
Unrecognized revenue |  | (8,169 | ) |  | (8,171 | )
Other |  | (1,651 | ) |  | (1,752 | )
Total deferred tax liabilities |  | (249,791 | ) |  | (207,798 | )
Net deferred tax liability |  | $ | (165,868 | ) |  | $ | (133,132 | )
Our net deferred tax liability consists of the following:
|  | December 31,
(In thousands) |  | 2013 |  | 2012
Current deferred tax asset |  | $ | 23,249 |  |  | $ | 20,054 |
Noncurrent deferred tax liability |  | (189,117 | ) |  | (153,186 | )
Net deferred tax liability |  | $ | (165,868 | ) |  | $ | (133,132 | )
As of December 31, 2013, the Company had various state tax credit carryforwards of approximately $3.8 million that are scheduled to expire in five to fifteen years. The Company recorded a valuation allowance in the amount of $460,000 and $559,000 as of December 31, 2013 and 2012, respectively, due to the uncertainty of realization of these tax credits. We are subject to U.S. federal income tax, as well as income tax of multiple state tax jurisdictions. We remain open to examination by the Internal Revenue Service for tax years 2010 through 2013. We remain open to examination by various state tax jurisdictions for tax years 2009 through 2013. Changes in our liability for unrecognized tax benefits could affect our effective tax rate, if recognized, but we do not expect any material changes within the next twelve months. The Company's liability for unrecognized tax benefits was immaterial as of December 31, 2013 and 2012. Interest and penalties related to uncertain tax positions, which are immaterial, are recorded in our Provision for Income Taxes on our Statements of Operations.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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