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Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2021
Fair Value Disclosures [Abstract]  
Fair Value, Liabilities Measured on Recurring Basis
The following table presents information about the Company’s financial liabilities measured at fair value on a recurring basis as of June 30, 2021 and indicates the level of the fair value hierarchy utilized to determine such fair value (in thousands):
 Fair Value Measurements as of June 30, 2021 Using:
Level 1Level 2Level 3Total
Liabilities:
Natural gas swap contracts$— $2,542 $— $2,542