Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Summary of Fair Value of Financial Assets and Liabilities

The following table summarizes the fair value of the Company’s financial assets and liabilities, by level within the fair-value hierarchy (in thousands): 

December 31, 2018	Level 1		Level 2		Level 3		Total
Financial assets
Derivative asset- current	$	—	$	43,888	$	—	$	43,888
Derivative asset- noncurrent	—		21,121		—		21,121
Total financial assets	$	—	$	65,009	$	—	$	65,009
Financial liabilities
Derivative liability - current	$	—	$	528	$	—	$	528
Derivative liability - noncurrent	—		1,891		—		1,891
Total financial liabilities	$	—	$	2,419	$	—	$	2,419
December 31, 2017
Financial assets
Derivative asset- current	$	—	$	184	$	—	$	184
Total financial assets	$	—	$	184	$	—	$	184
Financial liabilities
Derivative liability - current	$	—	$	11,805	$	—	$	11,805
Derivative liability - noncurrent	—		1,826		—		1,826
Total financial liabilities	$	—	$	13,631	$	—	$	13,631