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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2017
Income Tax Disclosure [Abstract] |
Income Tax Expense (Benefit) | Our income tax (benefit) expense is as follows:
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Current: |  |  |  |  |
Federal | $ | — |  |  | $ | — |  |  | $ | — |
State | 100 |  |  | 1,200 |  |  | 1,200 |
Total current income tax expense (benefit) | $ | 100 |  |  | $ | 1,200 |  |  | $ | 1,200 |
Deferred: |  |  |  |  |
Federal | $ | (5,530 | ) |  | $ | 1,862 |  |  | $ | 2,478 |
State | 1,471 |  |  | 280 |  |  | 309 |
Total deferred income tax expense (benefit) | $ | (4,059 | ) |  | $ | 2,142 |  |  | $ | 2,787 |
Total income tax expense (benefit) | $ | (3,959 | ) |  | $ | 3,342 |  |  | $ | 3,987 |
Deferred Tax Assets And Liabilities | Deferred tax assets and liabilities consist of the following:
| December 31,
| 2017 |  | 2016
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ | 9,506 |  |  | $ | 10,787 |
Total long-term deferred tax asset | 9,506 |  |  | 10,787 |
Valuation allowances | (1,285 | ) |  | (869 | )
Total deferred tax assets | $ | 8,221 |  |  | $ | 9,918 |
Deferred tax liabilities: |  |  |
Long-term: |  |  |
Fixed assets | $ | (3,896 | ) |  | $ | (4,480 | )
Intangible assets | (15,797 | ) |  | (20,693 | )
Other | (441 | ) |  | (716 | )
Total long-term liability | (20,134 | ) |  | (25,889 | )
Total deferred tax liabilities | $ | (20,134 | ) |  | $ | (25,889 | )
Total net deferred tax liability | $ | (11,913 | ) |  | $ | (15,971 | )
Federal Statutory Income Tax Rate To Income Before Income Taxes | :
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Income from operations before income taxes | $ | 78,120 |  |  | $ | 114,424 |  |  | $ | 425,572 |
Partnership income not subject to federal income tax | (77,704 | ) |  | (109,111 | ) |  | (418,500 | )
Income subject to federal income taxes | $ | 416 |  |  | $ | 5,313 |  |  | $ | 7,072 |
Tax expense at federal statutory rate | $ | 146 |  |  | $ | 1,860 |  |  | $ | 2,475 |
State income taxes, net of federal tax | 1,396 |  |  | 949 |  |  | 928 |
Return to provision, federal and state | (163 | ) |  | (198 | ) |  | (193 | )
Other | (68 | ) |  | 731 |  |  | 777 |
Remeasurement of deferred taxes due to enacted tax rate change | (5,270 | ) |  | — |  |  | — |
Income tax expense (benefit) | $ | (3,959 | ) |  | $ | 3,342 |  |  | $ | 3,987 |
Effective tax rate on income from operations before income taxes | (5 | )% |  | 3 | % |  | 1 | %

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: 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=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: 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=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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