Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value, Balance Sheet Grouping

The following tables set forth by level within the fair value hierarchy the Company's non-financial assets and liabilities that were measured at fair value on a recurring basis in the Unaudited Consolidated Balance Sheets.

	Level 1		Level 2		Level 3		Total
	(in thousands)
As of March 31, 2019
Financial Assets
Cash equivalents	$	37,762	$	—	$	—	$	37,762
Deferred compensation plan	1,679		—		—		1,679
Commodity derivatives	—		15,431		—		15,431
Financial Liabilities
Commodity derivatives	—		16,817		—		16,817
As of December 31, 2018
Financial Assets
Cash equivalents	12,188		—		—		12,188
Deferred compensation plan	1,392		—		—		1,392
Commodity derivatives	—		109,494		—		109,494
Financial Liabilities
Commodity derivatives	—		1,039		—		1,039