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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2016
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Tax, Domestic and Foreign | Income (loss) from continuing operations before income taxes consists of the following components:
| Years Ended December 31,
| 2016 |  | 2015 |  | 2014
Domestic | $ | 500,757 |  |  | $ | 566,444 |  |  | $ | 384,853 |
Foreign | (45,932 | ) |  | 16,350 |  |  | 12,175 |
Total | $ | 454,825 |  |  | $ | 582,794 |  |  | $ | 397,028 |
Schedule of Components of Income Tax Expense (Benefit) | Income tax expense attributable to continuing operations consists of the following components:
| Years Ended December 31,
| 2016 |  | 2015 |  | 2014
Current expense (benefit): |  |  |  |  |
Federal | $ | 120,634 |  |  | $ | 146,915 |  |  | $ | 111,047 |
State | 11,252 |  |  | 15,713 |  |  | 10,882 |
Foreign | 22,946 |  |  | 14,508 |  |  | 13,837 |
| 154,832 |  |  | 177,136 |  |  | 135,766 |
Deferred expense (benefit): |  |  |  |  |
Federal | 12,140 |  |  | 12,563 |  |  | 5,036 |
State | 2,515 |  |  | 1,300 |  |  | (1,373 | )
Foreign | (3,013 | ) |  | 5,753 |  |  | (2,456 | )
| 11,642 |  |  | 19,616 |  |  | 1,207 |
Tax expense (benefit) relating to uncertain tax positions, including accrued interest | (1,612 | ) |  | 4,338 |  |  | (7,818 | )
Income tax expense | $ | 164,862 |  |  | $ | 201,090 |  |  | $ | 129,155 |
Schedule of Effective Income Tax Rate Reconciliation | A reconciliation of the federal statutory income tax rate to the effective income tax rate is as follows:
| Years Ended December 31,
| 2016 |  | 2015 |  | 2014
U.S. federal statutory income tax rate | 35 | % |  | 35 | % |  | 35 | %
State and local income taxes, net of federal benefit | 2 |  |  | 2 |  |  | 2 |
Effect of foreign operations | (1 | ) |  | (2 | ) |  | (2 | )
Nontaxable income attributable to noncontrolling interests | (1 | ) |  | (1 | ) |  | (1 | )
Changes in the valuation allowance | 5 |  |  | 1 |  |  | 1 |
Domestic production activity deduction | (3 | ) |  | (3 | ) |  | (2 | )
Tax expense relating to uncertain tax positions, including accrued interest, net of deferred tax benefits | (1 | ) |  | 1 |  |  | (1 | )
Other | — |  |  | 1 |  |  | — |
Effective income tax rate | 36 | % |  | 34 | % |  | 32 | %
Schedule of Deferred Tax Assets and Liabilities | The tax effects of temporary differences that give rise to significant components of deferred tax assets or liabilities at December 31, 2016 and 2015 are as follows:
| December 31,
| 2016 |  | 2015
Deferred Tax Asset (Liability) |  |  |
Noncurrent |  |  |
NOLs and tax credit carry forwards | $ | 82,636 |  |  | $ | 83,361 |
Compensation and benefit plans | 49,710 |  |  | 45,312 |
Allowance for doubtful accounts | 421 |  |  | 261 |
Fixed assets and intangible assets | 46,595 |  |  | 35,781 |
Interest rate swap contracts | 2,884 |  |  | 2,412 |
Accrued interest expense | 11,567 |  |  | 11,692 |
Other liabilities | 20,811 |  |  | 17,423 |
Deferred tax asset | 214,624 |  |  | 196,242 |
Valuation allowance | (71,563 | ) |  | (54,336 | )
Net deferred tax asset, noncurrent | 143,061 |  |  | 141,906 |
Prepaid liabilities | (819 | ) |  | (820 | )
Fixed assets and intangible assets | (78,616 | ) |  | (70,337 | )
Investments in partnerships | (177,376 | ) |  | (154,215 | )
Other assets | (23,444 | ) |  | (28,750 | )
Deferred tax liability, noncurrent | (280,255 | ) |  | (254,122 | )
Total net deferred tax liability | $ | (137,194 | ) |  | $ | (112,216 | )
Schedule Of Unrecognized Tax Benefits Reconciliation | A reconciliation of the beginning to ending amount of the liability for uncertain tax positions (excluding related accrued interest and deferred tax benefit) is as follows:
Balance at December 31, 2015 | $ | 20,238 |
Increases related to current year tax positions | 4,736 |
Increases related to prior year tax positions | 892 |
Decreases related to prior year tax positions | (317 | )
Decreases due to lapse of statute of limitations | (7,484 | )
Balance at December 31, 2016 | $ | 18,065 |

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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=65882285&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=65882285&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=65882285&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32840-109319 + Details
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