INCOME TAXES (Reconciliation of the beginning and ending amount of gross unrecognized tax benefits) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of the beginning and ending amount of gross unrecognized tax benefits
Unrecognized Tax Benefits	$ 0.4	$ 1.1	$ 1.3	$ 1.3
Additions for tax positions of the current year	0.0	0.0	0.4
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	0.0	0.3	0.2
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	0.4	0.0	0.0
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	0.3	0.5	0.6
Settlements	$ 0.0	$ 0.0	$ 0.0

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
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-Section 50
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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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