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Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies

Changes in the carrying amount of goodwill by geographic segment

		Year Ended December 31, 2013
		Gross Balance												Accumulated Impairment Losses									Net Goodwill
		Balance January 1, 2013			Acquired During the Period			Foreign Currency Translation and Other			Balance December 31, 2013			Balance January 1, 2013			Impairment Loss During the Period			Balance December 31, 2013			December 31, 2013
		(in millions)
Americas		$	225.6		$	—		$	(0.9	)	$	224.7		$	(24.2	)	$	(0.3	)	$	(24.5	)	$	200.2
EMEA			289.7			—			11.6			301.3			—			—			—			301.3
Asia Pacific			12.9			—			0.4			13.3			—			—			—			13.3
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	528.2		$	—		$	11.1		$	539.3		$	(24.2	)	$	(0.3	)	$	(24.5	)	$	514.8
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

		Year Ended December 31, 2012
		Gross Balance												Accumulated Impairment Losses									Net Goodwill
		Balance January 1, 2012			Acquired During the Period			Foreign Currency Translation and Other			Balance December 31, 2012			Balance January 1, 2012			Impairment Loss During the Period			Balance December 31, 2012			December 31, 2012
		(in millions)
Americas		$	213.8		$	11.7		$	0.1		$	225.6		$	(23.2	)	$	(1.0	)	$	(24.2	)	$	201.4
EMEA			281.1			—			8.6			289.7			—			—			—			289.7
Asia Pacific			12.7			—			0.2			12.9			—			—			—			12.9
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	507.6		$	11.7		$	8.9		$	528.2		$	(23.2	)	$	(1.0	)	$	(24.2	)	$	504.0
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

Intangible assets

		December 31,
		2013									2012
		Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
		(in millions)
Patents		$	16.6		$	(12.6	)	$	4.0		$	16.5		$	(11.7	)	$	4.8
Customer relationships			133.0			(76.4	)		56.6			131.4			(65.9	)		65.5
Technology			26.9			(10.9	)		16.0			27.4			(9.0	)		18.4
Trade names			13.7			(3.0	)		10.7			13.5			(1.8	)		11.7
Other			8.8			(5.6	)		3.2			8.7			(5.5	)		3.2
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total amortizable intangibles			199.0			(108.5	)		90.5			197.5			(93.9	)		103.6
Indefinite-lived intangible assets			41.9			—			41.9			41.8			—			41.8
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Total		$	240.9		$	(108.5	)	$	132.4		$	239.3		$	(93.9	)	$	145.4
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

Reconciliation of the beginning and ending amount of unrecognized tax benefits

		(in millions)
Balance at January 1, 2013		$	4.6
Increases related to prior year tax positions			0.1
Decreases related to prior year tax positions			(0.2	)
Settlements			(3.7	)
​	​	​	​	​
Balance at December 31, 2013		$	0.8
​	​	​	​	​
​	​	​	​	​

Reconciliation of net income and number of shares used to compute net income per share, basic and assuming full dilution

		Years Ended December 31,
		2013									2012									2011
		Net Income			Shares			Per Share Amount			Net Income			Shares			Per Share Amount			Net Income			Shares			Per Share Amount
		(Amounts in millions, except per share information)
Basic EPS		$	58.6			35.5		$	1.65		$	68.4			36.0		$	1.90		$	66.4			37.3		$	1.78
Dilutive securities, principally common stock options			—			0.1			—			—			0.1			—			—			0.2			—
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Diluted EPS		$	58.6			35.6		$	1.65		$	68.4			36.1		$	1.90		$	66.4			37.5		$	1.78
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​	​

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Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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