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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
 [1]
Mar. 31, 2016
 [2]
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount                 200 300 200
Net Income (Loss) Attributable to Parent $ (12,984) $ (9,952) $ (1,899) $ (9,152) $ (51,160) $ (31,476) $ 6,771 $ 232 $ (33,987) $ (75,633) $ (80,461)
Noncontrolling Interest, Change in Redemption Value                 (9,556) (17,668) (49,277)
Net Income (Loss) Available to Common Stockholders, Basic                 $ (43,543) $ (93,301) $ (129,738)
Weighted Average Number of Shares Outstanding, Basic                 53,916 53,696 53,497
Earnings Per Share, Basic $ (0.26) [3] $ (0.21) $ (0.07) $ (0.27) $ (1.07) $ (0.79) $ 0.17 $ (0.05) $ (0.81) $ (1.74) $ (2.43)
5.625% convertible senior subordinated notes [Member]                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities                   5,600  
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