CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	Common Shares and Additional Paid-in Capital Flow-through common shares	Common Shares and Additional Paid-in Capital	Accumulated Deficit	Noncontrolling Interest	Flow-through common shares	Total
Balance at Dec. 31, 2021		$ 1,615,596	$ (1,240,432)	$ 14,777		$ 389,941
Balance (in shares) at Dec. 31, 2021		45,919
Increase (Decrease) in Shareholders' Equity
Stock-based compensation		$ 190				190
Sale of flow-through common stock	$ 10,320				$ 10,320
Sale of flow-through common stock (in shares)	1,450
Shares issued for debt refinancing		$ 500				500
Shares issued for debt refinancing (in shares)		59
Issuance of equity by subsidiary		$ 6,907		7,593		14,500
Net income (loss)			(33,182)	(288)		(33,470)
Balance at Jun. 30, 2022		$ 1,633,513	(1,273,614)	22,082		381,981
Balance (in shares) at Jun. 30, 2022		47,428
Balance at Mar. 31, 2022		$ 1,626,099	(1,261,162)	14,443		379,380
Balance (in shares) at Mar. 31, 2022		47,369
Increase (Decrease) in Shareholders' Equity
Stock-based compensation		$ 7				7
Shares issued for debt refinancing		$ 500				500
Shares issued for debt refinancing (in shares)		59
Issuance of equity by subsidiary		$ 6,907		7,593		14,500
Net income (loss)			(12,452)	46		(12,406)
Balance at Jun. 30, 2022		$ 1,633,513	(1,273,614)	22,082		381,981
Balance (in shares) at Jun. 30, 2022		47,428
Balance at Dec. 31, 2022		$ 1,644,145	(1,321,336)	33,465		356,274
Balance (in shares) at Dec. 31, 2022		47,428
Increase (Decrease) in Shareholders' Equity
Stock-based compensation		$ 84				84
Restricted shares issued (in shares)		46
Issuance of equity by subsidiary		$ 109,913		75,477		185,390
Net income (loss)			(64,703)	(14,968)		(79,671)
Balance at Jun. 30, 2023		$ 1,754,142	(1,386,039)	93,974		462,077
Balance (in shares) at Jun. 30, 2023		47,474
Balance at Mar. 31, 2023		$ 1,754,086	(1,364,412)	115,608		505,282
Balance (in shares) at Mar. 31, 2023		47,428
Increase (Decrease) in Shareholders' Equity
Stock-based compensation		$ 56				56
Restricted shares issued (in shares)		46
Net income (loss)			(21,627)	(21,634)		(43,261)
Balance at Jun. 30, 2023		$ 1,754,142	$ (1,386,039)	$ 93,974		$ 462,077
Balance (in shares) at Jun. 30, 2023		47,474