Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of effective income tax rate and income tax expense (benefit)

The following table summarizes our effective tax rate and income tax benefit for the three months ended March 31, 2018 and 2017 (in thousands except for percentages):

	Three Months Ended March 31,
	2018			2017
Effective tax rate	10		%	36		%
Income tax benefit	$	(5,979	)	$	(20,706	)