REVENUE Revenue Textuals (Details) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)
Net Contract Liability, Change from Prior Year		$ (16.6)
Net Contract Liability, Percentage Change from Prior Period		89.70%
Capitalized Contract Cost, Net	$ 7.1	$ 7.1
Contract with Customer, Liability, Revenue Recognized	15.2	46.1
Capitalized Contract Cost, Amortization	0.2	0.4
Long-term Contract with Customer [Member]
Revenue, Remaining Performance Obligation, Amount	44.4	44.4
Long-term Contract with Customer [Member] \| Minimum [Member]
Revenue, Remaining Performance Obligation, Amount	15.0	15.0
Long-term Contract with Customer [Member] \| Maximum [Member]
Revenue, Remaining Performance Obligation, Amount	$ 20.0	$ 20.0
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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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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/disclosureRef
-Publisher FASB
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