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EARNINGS PER SHARE (Details) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Income (Numerator)        
Net Income $ 46,035 $ 50,600 $ 116,738 $ 76,229
Net income attributable to noncontrolling interests (1,390) (1,181) (14,891) (2,670)
Numerator for basic and diluted earnings per common share available to common shareholders $ 44,645 $ 49,419 $ 101,847 $ 73,559
Shares (Denominator)        
Weighted-average common shares outstanding (shares) 102,649 95,026 97,668 94,922
Dilutive effect of stock-settled appreciation rights, restricted stock awards and outstanding stock options (shares) 1,016 908 1,039 897
Weighted-average common and common equivalent shares outstanding (shares) 103,665 95,934 98,707 95,819
Additional Disclosures        
Potentially antidilutive dilutive securities excluded from calculation of diluted earnings per share (shares) 0 525 0 525