Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Derivative [Line Items]

Schedule of Price Risk Derivatives [Table Text Block]

	Commodity derivative contracts
Commodity	Volume hedged December 31, 2015	Units of measure	Duration
Copper	6,273.2	Metric Tons	Dec -16

Schedule of Interest Rate Derivatives [Table Text Block]

	Interest rate swap contracts
(in millions)	Hedge Type	Notional Amount		Duration
Fixed to floating	Fair value	$	250.0	Sept - 20
Fixed to floating	Fair value	$	134.0	Oct - 19

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Text Block]

	Assets					Liabilities
(millions of dollars)	Location	December 31, 2015		December 31, 2014		Location	December 31, 2015		December 31, 2014
Foreign currency	Prepayments and other current assets	$	2.7	$	3.7	Accounts payable and accrued expenses	$	8.7	$	2.4
	Other non-current assets	$	—	$	0.1	Other non-current liabilities	$	—	$	0.5
Commodity	Prepayments and other current assets	$	—	$	—	Accounts payable and accrued expenses	$	10.4	$	—
Interest rate swaps	Other non-current assets	$	—	$	—	Other non-current liabilities	$	2.7	$	—

Deferred Losses Reported In Other Comprehensive Income Loss [Text Block]

	Deferred gain (loss) in AOCI at					Gain (loss) expected to be reclassified to income in one year or less
(millions of dollars)	December 31, 2015			December 31, 2014
Foreign currency	$	(0.1	)	$	1.3	$	(0.1	)
Commodity	(2.1		)	—		(2.0		)
Net investment hedges	12.2			0.2		—
Foreign currency denominated debt	0.1			$	—	—
Total	$	10.1		$	1.5	$	(2.1	)

Derivatives Designated As Cash Flow Hedging Instruments [Text Block]

		Gain (loss) reclassified from AOCI to income (effective portion)							Gain (loss) recognized in income (ineffective portion)
		Year Ended December 31,							Year Ended December 31,
(millions of dollars)	Location	2015			2014			Location	2015			2014
Foreign currency	Sales	$	(1.4	)	$	1.2		SG&A expense	$	(0.5	)	$	0.2
Foreign currency	Cost of goods sold	$	7.2		$	(1.0	)	SG&A expense	$	0.2		$	—
Foreign currency	SG&A expense	$	—		$	(0.8	)	SG&A expense	$	—		$	—
Commodity	Cost of goods sold	$	(0.1	)	$	—		Cost of goods sold	$	—		$	—
Cross-currency swap	Interest expense	$	0.4		$	—		Interest expense	$	—		$	(0.7	)

Foreign currency contracts [Member]

Derivative [Line Items]

Foreign Exchange Derivative Contracts Outstanding [Text Block]

Foreign currency derivatives (in millions)
Functional currency	Traded currency	Notional in traded currency December 31, 2015	Notional in traded currency December 31, 2014	Duration
Chinese yuan	Euro	30.5	—	Dec - 16
Chinese yuan	US dollar	13.8	24.9	Dec - 16
Euro	British pound	—	5.7	Dec - 15
Euro	Hungarian forint	3,434.5	—	Dec - 16
Euro	Japanese yen	487.1	4,371.8	Dec - 16
Euro	US dollar	30.1	23.5	Dec - 16
Japanese yen	Chinese yuan	92.6	88.6	Dec - 16
Japanese yen	Korean won	5,998.9	6,712.5	Dec - 16
Japanese yen	US dollar	3.0	3.8	Dec - 16
Korean won	Euro	2.5	2.5	Dec - 16
Korean won	Japanese yen	—	72.0	Dec - 15
Korean won	US dollar	77.9	22.7	Dec - 16
Mexican peso	US dollar	—	22.6	Dec - 15
Swedish krona	Euro	—	31.4	Dec - 15
US dollar	Mexican peso	469.0	—	Sept - 16