SIGNIFICANT ACCOUNTING POLICIES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Sep. 30, 2022	Mar. 31, 2023	Mar. 31, 2022
Supplemental disclosure of non-cash activities:
Contribution of plant and equipment or deposits on plant and equipment to joint venture		$ 35,792
Common stock issuance costs in accounts payable		250	$ 3
Preferred stock issuance costs in other accrued liabilities or accounts payable			293
Purchases of and deposits on plant and equipment in accounts payable, accrued construction liabilities, other accrued liabilities and long-term debt		2,621	8,943
Investment in joint venture in other accrued liabilities, other amounts due to related parties and long-term debt		721	482
Preferred stock proceeds receivable in other current assets			300
Convertible promissory notes converted to common stock		4,666
Common stock issued pursuant to operating lease amendment	$ 11,500
Common stock warrants issued for discount on long-term debt		16,036
Decrease to investment in joint venture and increase in plant and equipment for distribution or transfer of nonmonetary assets		4,519
Common stock reacquired in exchange for warrants		$ 12,479
Preferred stock dividends in other accrued liabilities			$ 45