| Income Tax Disclosure [Abstract] | Period [Axis] |
|---|
2016-01-01 - 2016-12-31 |
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Income Tax Disclosure [Abstract] | |
Schedule of provision for income taxes from continuing operations | The provision for income taxes from operations for the years ended December 31, 2016, 2015 and 2014 consists of the following: | | | | | | | | | | | | | | Years Ended December 31, | | 2016 | | 2015 | | 2014 | Current income taxes: | | | | | | Federal | $ | 68,312 |
| | $ | 22,552 |
| | $ | 10,787 |
| State | 11,441 |
| | 3,969 |
| | 2,883 |
| Total | 79,753 |
| | 26,521 |
| | 13,670 |
| Deferred income taxes: | | | | | | Federal | (9,115 | ) | | 8,896 |
| | 10,430 |
| State | (309 | ) | | 3,781 |
| | 1,349 |
| Total | (9,424 | ) | | 12,677 |
| | 11,779 |
| Provision for income taxes from operations | $ | 70,329 |
| | $ | 39,198 |
| | $ | 25,449 |
|
Total income tax expense for the years ended December 31, 2016, 2015 and 2014 was allocated as follows: | | | | | | | | | | | | | | Years Ended December 31, | | 2016 | | 2015 | | 2014 | Provision for income taxes from operations | $ | 70,329 |
| | $ | 39,198 |
| | $ | 25,449 |
| Shareholders’ equity, for compensation expense for tax purposes in excess of amounts recognized for financial reporting purposes | (3,144 | ) | | (7,176 | ) | | (978 | ) | | $ | 67,185 |
| | $ | 32,022 |
| | $ | 24,471 |
|
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Schedule of income tax reconciliation | The Company’s income tax expense differs from the amount that would have resulted from applying the federal statutory rate of 35% to pretax income from operations because of the effect of the following items during the years ended December 31, 2016, 2015 and 2014: | | | | | | | | | | | | | | Years Ended December 31, | | 2016 | | 2015 | | 2014 | Tax expense at federal statutory rate | $ | 61,658 |
| | $ | 42,381 |
| | $ | 20,533 |
| State taxes, net of federal benefit | 7,597 |
| | 5,260 |
| | 2,551 |
| Non-deductible expenses | 3,656 |
| | 3,505 |
| | 1,816 |
| Unrecognized tax benefit | 379 |
| | (11,464 | ) | | 971 |
| Other, net | (2,961 | ) | | (484 | ) | | (422 | ) | Income tax expense from operations | $ | 70,329 |
| | $ | 39,198 |
| | $ | 25,449 |
|
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Schedule of deferred tax assets and liabilities | The tax effects of temporary differences that give rise to significant portions of deferred tax assets and deferred tax liabilities are presented below as of the years ended December 31, 2016 and 2015: | | | | | | | | | | Years Ended December 31, | | 2016 | | 2015 | Deferred tax assets: | | | | Stock compensation | $ | 11,954 |
| | $ | 10,170 |
| Deferred compensation | 13,079 |
| | 9,153 |
| Accrued expenses | 35,499 |
| | 24,932 |
| Deferred rent | 5,492 |
| | 4,885 |
| Net operating losses | 5,756 |
| | 8,809 |
| Other | 6,576 |
| | 4,872 |
| Total deferred tax assets | $ | 78,356 |
| | $ | 62,821 |
| Deferred tax liabilities: | | | | Intangibles | $ | (78,201 | ) | | $ | (67,574 | ) | Fixed assets | (18,847 | ) | | (15,155 | ) | Other | (2,545 | ) | | (1,480 | ) | Total deferred tax liabilities | $ | (99,593 | ) | | $ | (84,209 | ) | Valuation allowance | $ | (183 | ) | | $ | (1,043 | ) | Net deferred tax liabilities | $ | (21,420 | ) | | $ | (22,431 | ) |
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Schedule of unrecognized tax benefits | A summary of the changes in the amount of unrecognized tax benefits (excluding interest and penalties) for 2016, 2015 and 2014 is as follows: | | | | | | | | | | | | | | 2016 | | 2015 | | 2014 | Beginning balance of unrecognized tax benefits | $ | 6,537 |
| | $ | 22,890 |
| | $ | 22,573 |
| Additions based on tax positions related to the current year | — |
| | — |
| | 317 |
| Additions based on tax positions of prior years | 868 |
| | 395 |
| | — |
| Reductions due to lapse of applicable statute of limitation | (563 | ) | | (214 | ) | | — |
| Settlements | — |
| | (16,534 | ) | | — |
| Ending balance of unrecognized tax benefits | $ | 6,842 |
| | $ | 6,537 |
| | $ | 22,890 |
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