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Increase (Decrease) in Accounts Receivable, Net

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Increase (Decrease) in Contract with Customer, Asset, Net, Current

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Increase (Decrease) in Contract with Customer, Liability, Current

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Increase (Decrease) in Contract with Customer, Liability, Noncurrent

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Increase (Decrease) in Contract with Customers, Net

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- Definition

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Revenues from Contracts (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
Revenues from Contracts (Details) - USD ($) $ in Millions	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 445.0	$ 362.5	$ 379.2	$ 351.9	$ 387.0	$ 348.5	$ 349.7	$ 340.6	$ 1,538.6	$ 1,425.8	$ 1,472.3
Contract accounts receivable	263.9								263.9			$ 222.9
Change in contract accounts receivable									41.0
Contract assets	91.2				0.0				91.2	0.0		70.7
Change in contract assets									20.5
Contract Liabilities - current	(79.5)				$ 0.0				(79.5)	0.0		(86.9)
Change in contract liabilities - current									7.4
Contract liabilities - non-current	(2.1)								(2.1)			0.0
Change in contract liabilities - non-current									(2.1)
Net contract balance	$ 273.5								273.5			$ 206.7
Change in net contract balance									66.8
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									956.0
Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									582.6
Cooling
Disaggregation of Revenue [Line Items]
Revenues									281.7
Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									300.4
Underground locators and inspection and rehabilitation equipment
Disaggregation of Revenue [Line Items]
Revenues									159.1
Signal monitoring, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									161.8
Power transformers
Disaggregation of Revenue [Line Items]
Revenues									373.8
Process cooling equipment, services, and heat exchangers
Disaggregation of Revenue [Line Items]
Revenues									212.7
South African projects
Disaggregation of Revenue [Line Items]
Revenues									49.1
HVAC
Disaggregation of Revenue [Line Items]
Revenues									582.1	511.0	509.5
HVAC \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									582.1
HVAC \| Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									0.0
HVAC \| Cooling
Disaggregation of Revenue [Line Items]
Revenues									281.7
HVAC \| Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									300.4
HVAC \| Underground locators and inspection and rehabilitation equipment
Disaggregation of Revenue [Line Items]
Revenues									0.0
HVAC \| Signal monitoring, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									0.0
HVAC \| Power transformers
Disaggregation of Revenue [Line Items]
Revenues									0.0
HVAC \| Process cooling equipment, services, and heat exchangers
Disaggregation of Revenue [Line Items]
Revenues									0.0
HVAC \| South African projects
Disaggregation of Revenue [Line Items]
Revenues									0.0
Detection and Measurement
Disaggregation of Revenue [Line Items]
Revenues									320.9	260.3	226.4
Detection and Measurement \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									307.3
Detection and Measurement \| Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									13.6
Detection and Measurement \| Cooling
Disaggregation of Revenue [Line Items]
Revenues									0.0
Detection and Measurement \| Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									0.0
Detection and Measurement \| Underground locators and inspection and rehabilitation equipment
Disaggregation of Revenue [Line Items]
Revenues									159.1
Detection and Measurement \| Signal monitoring, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									161.8
Detection and Measurement \| Power transformers
Disaggregation of Revenue [Line Items]
Revenues									0.0
Detection and Measurement \| Process cooling equipment, services, and heat exchangers
Disaggregation of Revenue [Line Items]
Revenues									0.0
Detection and Measurement \| South African projects
Disaggregation of Revenue [Line Items]
Revenues									0.0
Engineered Solutions
Disaggregation of Revenue [Line Items]
Revenues									537.0	560.7	598.0
Engineered Solutions \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									61.5
Engineered Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									475.5
Engineered Solutions \| Cooling
Disaggregation of Revenue [Line Items]
Revenues									0.0
Engineered Solutions \| Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									0.0
Engineered Solutions \| Underground locators and inspection and rehabilitation equipment
Disaggregation of Revenue [Line Items]
Revenues									0.0
Engineered Solutions \| Signal monitoring, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									0.0
Engineered Solutions \| Power transformers
Disaggregation of Revenue [Line Items]
Revenues									373.8
Engineered Solutions \| Process cooling equipment, services, and heat exchangers
Disaggregation of Revenue [Line Items]
Revenues									163.2
Engineered Solutions \| South African projects
Disaggregation of Revenue [Line Items]
Revenues									0.0
All Other
Disaggregation of Revenue [Line Items]
Revenues									98.6	$ 93.8	$ 138.4
All Other \| Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									5.1
All Other \| Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									93.5
All Other \| Cooling
Disaggregation of Revenue [Line Items]
Revenues									0.0
All Other \| Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									0.0
All Other \| Underground locators and inspection and rehabilitation equipment
Disaggregation of Revenue [Line Items]
Revenues									0.0
All Other \| Signal monitoring, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									0.0
All Other \| Power transformers
Disaggregation of Revenue [Line Items]
Revenues									0.0
All Other \| Process cooling equipment, services, and heat exchangers
Disaggregation of Revenue [Line Items]
Revenues									49.5
All Other \| South African projects
Disaggregation of Revenue [Line Items]
Revenues									$ 49.1