NET INCOME (LOSS) PER SHARE (Details 2) - shares shares in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
EARNINGS PER SHARE
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	7,304	1,323
Employee Stock Option
EARNINGS PER SHARE
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	4,324	1,323
Restricted Stock Units (RSUs)
EARNINGS PER SHARE
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	205	0
Conversion premium on the Notes
EARNINGS PER SHARE
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,749	0
Warrants
EARNINGS PER SHARE
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3	0
Employee Stock
EARNINGS PER SHARE
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	23	0

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration