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Financial Instruments and Fair Value (Tables)
 12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Summary of Fair Value Measurements and Financial Statement Presentation The fair values of the Company's financial instruments measured at fair value and their respective levels in the fair value hierarchy as of December 31, 2020, were as follows:

 

 

 

December 31, 2020

 

 

December 31, 2020

 

 

 

Fair Values of Assets

 

 

Fair Values of Liabilities

 

In Thousands

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Other items reported at fair value:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short-term investments

 

$

11,698

 

 

$

—

 

 

$

—

 

 

$

11,698

 

 

$

—

 

 

$

—

 

 

$

—

 

 

$

—

 

Commodity derivative contracts

 

 

467

 

 

 

—

 

 

 

—

 

 

 

467

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Total

 

$

12,165

 

 

$

—

 

 

$

—

 

 

$

12,165

 

 

$

—

 

 

$

—

 

 

$

—

 

 

$

—