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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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

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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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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SHAREHOLDERS' EQUITY - Restricted Stock Awards (Details) - Restricted Stock - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)	188,717
2010 Long-term Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 1.6	$ 1.9	$ 0.6
2010 Long-term Stock Incentive Plan \| 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)							175,000
Restricted stock outstanding (in shares)	0
Compensation Expense	$ 0.0	0.1	0.1
2010 Long-term Stock Incentive Plan \| 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)						100,000
Restricted stock outstanding (in shares)	0
Compensation Expense	$ 0.0	0.2	0.1
2010 Long-term Stock Incentive Plan \| 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)					50,000
Restricted stock outstanding (in shares)	15,000
Compensation Expense			0.1
2010 Long-term Stock Incentive Plan \| 2012 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 0.1	0.1
2010 Long-term Stock Incentive Plan \| 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)				100,000
Restricted stock outstanding (in shares)	0
Compensation Expense		0.1	$ 0.2
2010 Long-term Stock Incentive Plan \| 2016 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 0.1
2010 Long-term Stock Incentive Plan \| 2017, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)			53,288
Restricted stock outstanding (in shares)	0
Compensation Expense	$ 0.0		$ 0.1
2010 Long-term Stock Incentive Plan \| 2017, Tranche One \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense		$ 0.1
2010 Long-term Stock Incentive Plan \| 2017, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)			49,600
Restricted stock outstanding (in shares)	0
Compensation Expense	$ 0.0
2010 Long-term Stock Incentive Plan \| 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)		5,117
Restricted stock outstanding (in shares)	0
Compensation Expense	$ 0.0		$ 0.0
2010 Long-term Stock Incentive Plan \| 2018 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense		$ 0.1
2010 Long-term Stock Incentive Plan \| 2019, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)	30,251
Restricted stock outstanding (in shares)	30,251
Compensation Expense	$ 0.3	0.0	0.0
2010 Long-term Stock Incentive Plan \| 2019, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares)	149,412
Restricted stock outstanding (in shares)	114,513
Compensation Expense	$ 1.3	0.0	0.0
Discontinued Operations \| 2010 Long-term Stock Incentive Plan \| 2017, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense		$ 1.5
Discontinued Operations \| 2010 Long-term Stock Incentive Plan \| 2017, Tranche Two \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense			$ 0.1