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Income Taxes	6 Months Ended
	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes The Company’s effective tax rate for the three and six months ended June 30, 2017 was 29.2% and 26.5%, respectively.  For both the three and six months ended June 30, 2016, the Company’s effective tax rate was 36.7%.  The 2017 effective tax rate was reduced as a result of the Company’s adoption of ASU 2016-09, which requires the excess tax benefit from stock option exercises to be recorded as a reduction to income tax expense in the period stock options are exercised.  During the three and six months ended June 30, 2017, the Company recognized $16,464 and $36,364, respectively, in excess tax benefits. During the three and six months ended June 30, 2016, excess tax benefits of $2,394 and $8,678, respectively, were recorded to additional paid-in capital within shareholders’ equity.

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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
-URI http://asc.fasb.org/topic&trid=2144680

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