Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Income Taxes

Schedule of loss before income taxes and income tax benefit

	Three months ended June 30,						Six months ended June 30,
	2018			2017			2018			2017
	(in thousands)
Loss before income taxes	$	(265,659	)	$	(34,158	)	$	(281,716	)	$	(43,045	)
Income tax benefit	$	(28,025	)	$	(13,341	)	$	(28,255	)	$	(23,868	)