Supplemental Schedule of Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2017

Supplemental Cash Flow Elements [Abstract]

Non-Cash Financing and Investing Activity

The following table reflects non-cash financing and investing activity during the following periods:

	Nine Months Ended September 30,
	2017			2016
	(In thousands)
Capital leases and notes issued for equipment	$	61,040		$	5,151
Asset retirement obligation additions (retirements)	(30		)	(21		)
Change in accrued property and equipment	8,726			—