JOINT VENTURE - Results of Operations and Financial Position (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Condensed statements of operations information:
Operating expenses	$ 442	$ 261	$ 1,218	$ 1,689
Net loss	(19,099)	(33,988)	(62,896)	(65,840)
Condensed balance sheet information:
Current assets	12,980		12,980			$ 14,144
TOTAL ASSETS	311,793		311,793			317,687
Current liabilities	108,479		108,479			126,019
Equity	153,934	121,843	153,934	121,843	$ 134,818	117,754	$ 135,264	$ 123,179
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	311,793		311,793			317,687
Nautilus Joint Venture
Condensed statements of operations information:
Revenue	29,106	0	70,929	0
Operating expenses	27,619	2,909	67,646	6,654
Net loss	1,487	$ (2,909)	3,283	$ (6,654)
Condensed balance sheet information:
Current assets	14,876		14,876			28,986
Noncurrent assets	182,977		182,977			154,552
TOTAL ASSETS	197,853		197,853			183,538
Current liabilities	13,981		13,981			12,864
Noncurrent liabilities	27,641		27,641			0
Equity	156,231		156,231			170,674
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 197,853		$ 197,853			$ 183,538