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Amount classified as contract liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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No definition available.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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

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Note 3 - Revenues 1 (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Disposal Group, Including Discontinued Operation, Contract Assets, Current	$ 9.4		$ 9.4		$ 1.8
Disposal Group, Including Discontinued Operation, Contract Liabilities, Current	$ 0.4		0.4		0.1
Contract with Customer, Liability, Total					$ 32.3		$ 51.6
Contract with Customer, Liability, Revenue Recognized			$ 32.3	$ 51.6
Product and Services [Member]
Revenue Recognized, Percent	92.60%	92.60%	92.40%	93.60%
Product [Member]
Revenue Recognized, Percent	7.40%	7.40%	7.60%	6.40%
Construction, Engineering and Installation Services [Member]
Revenue, Remaining Performance Obligation, Amount	$ 497.0		$ 497.0
Accounting Standards Update 2014-09 [Member] \| Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption						$ (0.3)