Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2020

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

	Six Months  Ended  June 30,
		2020			2019
		(in thousands)
Net cash provided from operating activities included:
Income taxes refunded from taxing authorities	$	2,154		$	—
Interest paid		(78,265	)		(99,675	)
Non-cash investing and financing activities included:
Increase in asset retirement costs capitalized		4,247			2,326
(Decrease) increase in accrued capital expenditures		(31,307	)		6,346