EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income (Numerator)
Income from continuing operations	$ 27,657	$ 16,515
Net (income) loss attributable to noncontrolling interests included in continuing operations	(499)	127
Numerator for diluted earnings per common share from continuing operations available to common shareholders	27,158	16,713
Income from discontinued operations, net of taxes		355
Numerator for diluted earnings available to common shareholders	27,158	17,068
Shares (Denominator)
Weighted average common shares outstanding	98,824,000	81,191,000
Dilutive effect of stock settled appreciation rights, restricted stock awards and outstanding stock options (in shares)	678,000	223,000
Weighted-average common and common equivalent shares outstanding	99,502,000	82,064,000
Additional Disclosures
Antidilutive dilutive securities excluded from calculation of diluted earnings per share (in shares)	0	1,600,000
4.875% Notes
Earning Per Share
Interest rate (as a percent)	4.875%	4.875%
Income (Numerator)
Income impact of assumed conversion of debt securities, net of taxes		45
Shares (Denominator)
Dilutive effect of debt securities (in shares)		339,000
3.0% Notes
Earning Per Share
Interest rate (as a percent)	3.00%	3.00%
Income (Numerator)
Income impact of assumed conversion of debt securities, net of taxes		$ 26
Shares (Denominator)
Dilutive effect of debt securities (in shares)		311,000