Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Reconciliation of the U.S. Federal Statutory Rate to Effective Tax Rate

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   March 31,
	2018		2017
U.S. federal statutory income tax rate	21.0	%	35.0	%
State income taxes	2.4	%	1.7	%
Excess tax benefits from stock-based compensation plans	-0.1	%	-1.6	%
Other	0.5	%	0.2	%
Effective income tax rate	23.8	%	35.3	%