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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
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-Topic 210
-SubTopic 10
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NET (LOSS) INCOME PER SHARE - Schedule of Anti-Dilutive Shares (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Aug. 13, 2019	Sep. 09, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common shares (in shares)	18,795	35,276
Convertible Senior Notes, 2.5% \| Convertible debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Interest rate	2.50%			2.50%
Convertible Senior Notes, 5.0% \| Convertible debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Interest rate	5.00%		5.00%
Convertible debt \| Convertible Senior Notes, 2.5%
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common shares (in shares)	1,344	13,895
Convertible debt \| Convertible Senior Notes, 5.0%
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common shares (in shares)	6,831	14,895
Stock options and equivalents
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common shares (in shares)	10,620	6,486