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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2020
Fair Value Disclosures [Abstract]  
Hierarchy of Fair Value, Assets and Liabilities Measured on Recurring Basis
The following tables set forth by level, within the fair value hierarchy, the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis:
Fair value at September 30, 2020
Level 1Level 2Level 3Total
(In thousands)
Assets:
Money market funds$14,005 $— $— $14,005 
Commodity derivative instruments (see Note 8)
— 200 — 200 
Total assets$14,005 $200 $— $14,205 

 Fair value at December 31, 2019
 Level 1Level 2Level 3Total
 (In thousands)
Assets:
Money market funds$146 $— $— $146 
Commodity derivative instruments (see Note 8)
— 1,174 — 1,174 
Total assets$146 $1,174 $— $1,320 
Liabilities:
Commodity derivative instruments (see Note 8)
$— $19,815 $— $19,815 
Total liabilities$— $19,815 $— $19,815