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INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Valuation allowance	$ 41.7	$ 58.0
Net operating loss carry-forwards	312.6
Unrecognized tax benefits	16.4	17.2	$ 9.5	$ 6.9
Unrecognized tax benefits if recognized that would affect effective tax rate	14.8
Accrued interest	4.5	$ 4.0
Unrecognized tax benefits subject to change within the next 12 months	$ 6.2

X

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The amount of estimated interest accrued as of the balance sheet date arising from income tax examinations.

+ References

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-Publisher FASB
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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