ACCOUNTS RECEIVABLE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts Receivable
Retail, Allowance for Credit Losses	$ (10,044)	$ (13,260)
Accounts Receivable	192,579	173,412
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning of Period	(13,260)	(6,000)
Credit Loss Expense	0	(10,000)
Write-offs	3,000	3,000
End of Period	(10,044)	(13,260)
Retail
Accounts Receivable
Accounts receivable, gross	78,000	90,000
Retail, Allowance for Credit Losses	(10,000)	(13,000)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning of Period	(13,000)
End of Period	(10,000)	(13,000)
Retail | Retail, Unbilled
Accounts Receivable
Accounts receivable, gross	44,000	41,000
Wholesale
Accounts Receivable
Accounts receivable, gross	47,000	33,000
Wholesale | Derivatives
Accounts Receivable
Accounts receivable, gross	16,000	7,000
Trade Accounts | Due from Affiliates
Accounts Receivable
Accounts receivable, gross	17,000	9,000
Other
Accounts Receivable
Accounts receivable, gross	$ 17,000	$ 13,000