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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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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No definition available.

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- Definition

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

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No definition available.

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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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- Definition

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

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- Definition

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

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STOCK-BASED COMPENSATION (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
STOCK-BASED COMPENSATION (Details) - USD ($) $ in Millions	May 03, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	May 02, 2018
Stock Options
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense (less than for ESPP)		$ 0.3	$ 0.3	$ 0.6	$ 0.6
Restricted Stock
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense (less than for ESPP)		0.8	0.8	1.0	0.3
Stock Appreciation Rights (SARs)
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation expense (less than for ESPP)		$ 0.2	0.2	$ 0.2	0.2
Employee Stock Purchase Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)	2,250,000					750,000
Number of shares available for grant (in shares)		1,459,209		1,459,209
Share-based compensation expense (less than for ESPP)		$ 0.1	$ 0.1	$ 0.1	$ 0.1
Purchase price of common stock, percent	85.00%
Adjustment to number of shares authorized (in shares)	1,500,000
Shares purchased on the open market for award (in shares)				790,791
The 2018 Plan
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares authorized (in shares)	16,406,939
Number of shares available for grant (in shares)	3,000,000	13,734,864		13,734,864