EARNINGS PER SHARE (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
Basic earnings per share - Numerator:
Net income from continuing operations									$ 45,159	$ 80,390	$ 81,869
Net income attributable to noncontrolling interests	$ 0	$ 0	$ 0	$ 6	$ 97	$ 96	$ 69	$ 100	6	362	3,487
Net income from continuing operations attributable to the Company									45,153	80,028	78,382
Decrease/(increase) in noncontrolling interests’ redemption values									414	1,143	2,303
Dividends on preferred stock									0	0	(3,985)
Total adjustments to income attributable to common shareholders									414	1,143	(1,682)
Net income from continuing operations attributable to common shareholders, treasury stock method									45,567	81,171	76,700
Net income from discontinued operations									0	0	2,002
Net income attributable to common shareholders									$ 45,567	$ 81,171	$ 78,702
Basic earnings per share - Denominator:
Weighted average basic common shares outstanding (in shares)									82,359,528	83,430,740	83,596,685
Per share data - Basic earnings per share from:
From continuing operations: (in dollars per share)									$ 0.55	$ 0.97	$ 0.92
From discontinued operations: (in dollars per share)									0	0	0.02
Total attributable to common shareholders: (in dollars per share)	$ 0.30	$ 0.28	$ (0.04)	$ 0.01	$ 0.26	$ 0.24	$ 0.22	$ 0.25	$ 0.55	$ 0.97	$ 0.94
Diluted earnings per share - Numerator:
Net income from continuing operations attributable to common shareholders, after assumed dilution									$ 45,567	$ 81,171	$ 76,700
Net income from discontinued operations									0	0	2,002
Net income attributable to common shareholders for basic earnings per share calculation									$ 45,567	$ 81,171	$ 78,702
Diluted Earnings Per Share, Denominator [Abstract]
Weighted average basic common shares outstanding (in shares)									82,359,528	83,430,740	83,596,685
Dilutive effect of:
Stock options, performance-based and time-based restricted stock, and performance-based and time-based restricted stock units, and other dilutive securities (in shares)									398,257	490,052	1,002,764
Warrants to purchase common stock (in shares)									0	0	731,865
Dilutive common shares (in shares)									398,257	490,052	1,734,629
Weighted average diluted common shares outstanding (in shares)									82,757,785	83,920,792	85,331,314
Per share data - Diluted earnings per share from:
Continuing operations (in dollars per share)									$ 0.55	$ 0.97	$ 0.90
Discontinued operations (in dollars per share)									0	0	0.02
Total attributable to common shareholders: (in dollars per share)	$ 0.30	$ 0.28	$ (0.04)	$ 0.01	$ 0.26	$ 0.24	$ 0.22	$ 0.25	0.55	0.97	0.92
Dividends per share declared and paid on common stock (in dollars per share)									$ 0.36	$ 0.48	$ 0.48