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Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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RECENT ACCOUNTING PRONOUNCEMENTS - Accounting Pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Jan. 01, 2019	Jan. 01, 2018	Dec. 31, 2017
Condensed Balance Sheet Statements, Captions [Line Items]
Right-of-use assets	$ 0	$ 12,058	$ 18,500
Lease liabilities		12,477	$ 18,500
Retained earnings (accumulated deficit)	295,118	155,146		$ 289,134
Equity securities, FV-NI, realized gain (loss)	3,500
Restricted cash	1,420	$ 3,153			$ 700
Adjustments for ASC 606
Condensed Balance Sheet Statements, Captions [Line Items]
Retained earnings (accumulated deficit)	25,481			$ 16,600	$ 16,631
Accounting Standards Update 2016-01
Condensed Balance Sheet Statements, Captions [Line Items]
Retained earnings (accumulated deficit)	$ (2,900)