REVENUE Revenue Textuals (Details) $ in Millions	3 Months Ended
Mar. 31, 2018 USD ($)
Net Contract Liability, Change from Prior Year	$ (12.5)
Net Contract Liability, Percentage Change from Prior Period	67.60%
Capitalized Contract Cost, Net	$ 7.3
Contract with Customer, Liability, Revenue Recognized	30.9
Capitalized Contract Cost, Amortization	0.2
Long-term Contract with Customer [Member]
Revenue, Remaining Performance Obligation	39.6
Long-term Contract with Customer [Member] \| Minimum [Member]
Revenue, Remaining Performance Obligation	20.0
Long-term Contract with Customer [Member] \| Maximum [Member]
Revenue, Remaining Performance Obligation	$ 25.0
Revenue on Service and Repair Contracts [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	3.00%

Net Contract Liability, Change from Prior Year

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Net Contract Liability, Percentage Change from Prior Period

+ References

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- Definition

Revenue from Contract with Customer, Percentage of Total

+ References

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Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130549-203045

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1A
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-URI http://asc.fasb.org/extlink&oid=84173487&loc=SL51747714-108306

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130556-203045

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