EARNINGS PER SHARE AND EQUITY (EPS Schedule) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net (loss) income from continuing operations	$ (59,695)	$ (25,209)	$ (15,728)	$ (4,391)	$ 109,532	$ 19,736	$ 15,008	$ (9,954)	$ (105,023)	$ 134,322	$ (20,106)
Net income from discontinued operations, net of income taxes	0	0	0	1,331	71,579	940	785	158	1,331	73,462	4,402
Net (loss) income	(59,695)	(25,209)	(15,728)	(3,060)	181,111	20,676	15,793	(9,796)	(103,692)	207,784	(15,704)
Less: Net (loss) income attributable to non-controlling interests in consolidated subsidiaries:
Continuing operations	(3,798)	(3,876)	(4,112)	(4,736)	(4,520)	(5,111)	(4,580)	(3,360)	(16,522)	(17,571)	(21,925)
Discontinued operations	0	0	0	0	146	116	41	(56)	0	247	339
Less: Dividends on preferred shares	4,626	4,625	4,079	4,539	1,838	0	0	0	17,869	1,838	0
Net (loss) income attributable to shareholders	$ (60,523)	$ (25,958)	$ (15,695)	$ (2,863)	$ 183,647	$ 25,671	$ 20,332	$ (6,380)	$ (105,039)	$ 223,270	$ 5,882
Basic (in shares)	86,022,302	86,022,302	86,009,959	86,008,099	85,997,619	85,996,067	85,987,769	85,986,453	86,015,702	85,992,019	83,654,068
Diluted (in shares)	86,022,302	86,022,302	86,009,959	86,008,099	86,090,207	86,005,604	85,989,029	85,986,453	86,015,702	86,029,363	83,664,833
Basic
Continuing operations (usd per share)	$ (0.70)	$ (0.30)	$ (0.18)	$ (0.05)	$ 1.30	$ 0.29	$ 0.23	$ (0.07)	$ (1.24)	$ 1.74	$ 0.02
Discontinued operations (usd per share)	0.00	0.00	0.00	0.02	0.83	0.01	0.01	0.00	0.02	0.85	0.05
Diluted
Continuing operations (usd per share)	(0.70)	(0.30)	(0.18)	(0.05)	1.30	0.29	0.23	(0.07)	(1.24)	1.74	0.02
Discontinued operations (usd per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.02	$ 0.83	$ 0.01	$ 0.01	$ 0.00	$ 0.02	$ 0.85	$ 0.05