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Prepaid and Other Current Assets
9 Months Ended
Sep. 30, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid and Other Current Assets Prepaid and Other Current Assets
Prepaid and other current assets at September 30, 2020 and December 31, 2019 consisted of the following (in thousands):
 
September 30, 2020
 
December 31, 2019
Advances to suppliers
$

 
$
27,635

Collateral posted with broker for derivative instruments (1)
2,986

 
10,306

Prepaid insurance

 
13,536

Derivative assets
2,963

 
2,075

Other
3,729

 
5,604

Total
$
9,678

 
$
59,156


_________________________________________________________
(1)
Our cash margin that is required as collateral deposits on our commodity derivatives cannot be offset against the fair value of open contracts except in the event of default. Please read Note 11—Derivatives for further information.