Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of fair value measurements

The following tables summarize the Company’s financial and non-financial liabilities by valuation level as of December 31, 2018 and 2017:

	December 31, 2018
	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Derivative Instruments	$	—	$	21,352	$	—
Liabilities:
Derivative Instruments	$	—	$	34,393	$	—

	December 31, 2017
	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Derivative Instruments	$	—	$	87,532	$	—
Liabilities:
Derivative Instruments	$	—	$	35,523	$	—