Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Face amount or stated value per share of common stock.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares purchased on the open market during the period for issuance to employees under the plan.

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Purchase price of common stock expressed as a percentage of its fair value.

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STOCK-BASED COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		9 Months Ended
	Nov. 30, 2016	May 07, 2013	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Nov. 29, 2016
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Par value of common stock (in dollars per share)			$ 0.0001		$ 0.0001		$ 0.0001
Equity Option
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense			$ 0.1	$ 1.0	$ 0.8	$ 2.7
Stock Appreciation Rights (SARs)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense						0.1
Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense			$ 0.4	$ 0.4	$ 0.6	0.4
Market Based Cash Awards
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense						0.1
Employee Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)		750,000
Number of shares available for grant (in shares)			101,969		101,969
Share-based compensation expense					$ 0.1	$ 0.1
Purchase price of common stock, percent		85.00%
Par value of common stock (in dollars per share)		$ 0.0001
Shares purchased on the open market for award (in shares)					648,031
Charter Amendment
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)	250,000,000							125,000,000
2008 Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)	3,000,000
Number of shares available for grant (in shares)			4,524,890		4,524,890
2008 Plan \| Equity Option
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)								500,000
2008 Plan \| Stock Appreciation Rights (SARs)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)								500,000
2008 Plan \| Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)								350,000
2008 Plan \| Common Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)	14,605,000							9,355,000
Adjustment to number of shares authorized (in shares)	5,250,000