DERIVATIVES. (Tables)

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivatives not designated as hedging instruments

Non Designated Derivative Instruments – The classification and amounts of the Company's derivatives not designated as hedging instruments, and related cash collateral balances, are as follows (in thousands):

	As of December 31, 2019
	Assets			Liabilities
Type of Instrument	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Cash collateral balance	Other current assets	$	615
Commodity contracts	Derivative assets	$	2,438	Derivative liabilities	$	1,860

	As of December 31, 2018
	Assets			Liabilities
Type of Instrument	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Cash collateral balance	Other current assets	$	8,479
Commodity contracts	Derivative assets	$	1,765	Derivative liabilities	$	6,309

Schedule of recognized gains (losses) for derivatives

The classification and amounts of the Company's recognized gains (losses) for its derivatives not designated as hedging instruments are as follows (in thousands):

		Realized Losses
		For the Years Ended December 31,
Type of Instrument	Statements of Operations Location	2019			2018
Commodity contracts	Cost of goods sold	$	(4,568	)	$	(3,479	)
		$	(4,568	)	$	(3,479	)
		Unrealized Gains (Losses)
		For the Years Ended December 31,
Type of Instrument	Statements of Operations Location	2019			2018
Commodity contracts	Cost of goods sold	$	5,123		$	(3,235	)
		$	5,123		$	(3,235	)