INCOME TAXES - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Uncertain tax benefits, beginning balance	$ 2.7	$ 2.7	$ 4.1
Additions for tax positions related to current year	0.0	0.0	0.0
Additions for tax positions related to prior year	0.0	0.0	0.0
Reductions for tax positions related to prior years	0.0	0.0	0.0
Lapse of statute of limitations	0.0	0.0	(0.3)
Change in statutory tax rate (1)	0.0	0.0	(1.1)
Settlements	0.0	0.0	0.0
Uncertain tax benefits, ending balance	$ 2.7	$ 2.7	$ 2.7

Unrecognized Tax Benefits Decreases Resulting From Change In Statutory Tax Rate

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- Definition

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

+ References

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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

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

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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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- Definition

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

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- Definition

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

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