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INCOME TAXES - OPERATING LOSS AND TAX CREDIT CARRYFORWARDS (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Operating Loss and Tax Credit Carryforwards
Valuation allowances	$ 10.0	$ 10.6
Operating loss carryforwards, not expected to benefit the entity	157.9	157.9
U.S. Federal Income Tax
Operating Loss and Tax Credit Carryforwards
Net operating losses carryforwards	7.6	71.2
State Income Tax
Operating Loss and Tax Credit Carryforwards
Net operating losses carryforwards	185.9	184.5
Alternative minimum tax credit carryforwards	4.0	6.7
Foreign Income Tax
Operating Loss and Tax Credit Carryforwards
Net operating losses carryforwards	$ 11.9	$ 14.0

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards with no expiration.

+ References

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- Definition

Represents the income tax net operating losses and tax credit carryforwards for the company.

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- Definition

Amount of operating loss carryforward not expected to be realized, before tax effects, available to reduce future taxable income under enacted tax laws.

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- 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
-Subparagraph (c)
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
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-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

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