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Acquisitions Narrative (Details) CAD in Millions, $ in Millions				7 Months Ended	12 Months Ended
	Jun. 03, 2016 CAD	Jun. 03, 2016 USD ($) facility	Jan. 05, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Acquisition related costs					$ 0.9
Expense recognized relating to change in fair value of contingent consideration liability					0.4
Payments to acquire business, net					102.6	$ 0.0	$ 0.0
Goodwill				$ 236.5	236.5	231.6	235.2
Expenses recognized in relation to accretion of discount on deferred payment obligation					0.1
Environmental Solutions [Member]
Business Acquisition [Line Items]
Goodwill				127.2	127.2	120.4	120.4
Safety And Security Systems [Member]
Business Acquisition [Line Items]
Goodwill				109.3	109.3	111.2	$ 114.8
Joe Johnson Equipment [Member] | Manufacturing Facility [Member]
Business Acquisition [Line Items]
Lessee Leasing Arrangements, Operating Leases, Number of Units | facility		2
Lessee Leasing Arrangements, Operating Leases, Term of Contract	5 years	5 years
Payments for Rent					0.2
Ingenieria Y Servicios Orbitec SPA [Member]
Business Acquisition [Line Items]
Revenue from Related Parties					1.7
Joe Johnson Equipment [Member]
Business Acquisition [Line Items]
Revenue from Related Parties					$ 21.6	$ 54.8
Westech Vac Systems, Ltd. (“Westech”) [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Payments to acquire business, net			$ 6.0
Goodwill			1.9
Intangible assets			$ 1.4
Joe Johnson Equipment [Member]
Business Acquisition [Line Items]
Goodwill		$ 5.2
Intangible assets		8.4
Purchase price, inclusive of working capital adjustment		96.6
Acquisition Deferred Payment	CAD 8.0	6.0
Acquisition contingent earn-out	CAD 10.0	$ 7.4
Joe Johnson Equipment [Member] | Environmental Solutions [Member]
Business Acquisition [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				87.2
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual				1.9
Joe Johnson Equipment [Member] | Purchase Accounting Adjustments [Member] | Environmental Solutions [Member]
Business Acquisition [Line Items]
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized				3.8
Joe Johnson Equipment [Member] | Acquisition-related Costs [Member] | Environmental Solutions [Member]
Business Acquisition [Line Items]
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized				$ 0.5

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The expenses and losses recorded for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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