Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value of Assets and Liabilities Measured on Recurring Basis

The following table presents information about the Company’s financial liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values (in thousands):



	Fair Value Measurements as of March 31, 2018 Using:
	Level 1		Level 2		Level 3		Total
Assets:
Natural gas swap contracts	$	—	$	1,255	$	—	$	1,255



	Fair Value Measurements as of December 31, 2017 Using:
	Level 1		Level 2		Level 3		Total
Assets:
Natural gas swap contracts	$	—	$	1,644	$	—	$	1,644