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INCOME TAXES (Operating Loss Carryforwards) (Details) $ in Millions	Dec. 31, 2017 USD ($)
U.S Federal and State
Operating loss carryforwards
Valuation allowance against the related deferred tax assets	$ 140.2
U.S Federal
Operating loss carryforwards
Net operating loss carryforwards	570.3
State
Operating loss carryforwards
Net operating loss carryforwards	292.0
Foreign | China
Operating loss carryforwards
Net operating loss carryforwards	55.7
Valuation allowance against the related deferred tax assets	8.3
Foreign | Countries other than the U.S. and China
Operating loss carryforwards
Net operating loss carryforwards	102.8
Valuation allowance against the related deferred tax assets	$ 17.7

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

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- Definition

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards 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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32559-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 30
-Paragraph 5
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=64814285&loc=d3e30536-109315

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-Name Accounting Standards Codification
-Topic 740
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-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

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