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Income Taxes | 6 Months Ended
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Jun. 30, 2019
Income Tax Disclosure [Abstract] |
Income Taxes | INCOME TAXES A reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows:
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
U.S. federal statutory income tax rate | 21.0 | % |  | 21.0 | % |  | 21.0 | % |  | 21.0 | %
State income taxes | 2.7 | % |  | 2.5 | % |  | 2.8 | % |  | 2.5 | %
Excess tax benefits from stock-based compensation plans | — | % |  | — | % |  | -1.9 | % |  | -0.1 | %
Other | -0.1 | % |  | 0.2 | % |  | 0.1 | % |  | 0.4 | %
Effective income tax rate | 23.6 | % |  | 23.7 | % |  | 22.0 | % |  | 23.8 | %
Excess tax benefits from stock-based compensation plans During the first quarter of each year, we receive a tax benefit upon the vesting of restricted stock and the conversion of restricted stock units to common stock based on the fair value of the shares. The amount that this tax benefit exceeds the grant-date fair value that was recognized as stock-based compensation expense is referred to as an excess tax benefit. Excess tax benefits are recognized in provision for income taxes and reduce our effective income tax rate. The increase in excess tax benefits from 2018 to 2019 was primarily the result of an increase in the number of restricted stock units that were converted to common stock due to the timing of long-term stock award grants.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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