Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value

The following tables present the assets and liabilities recorded at fair value on a recurring basis:

	Balance at		Basis of Fair Value Measurements
($ in millions)	June 30, 2014		Level 1		Level 2		Level 3
Assets:
Short-term investments	$	8.5	$	8.5	$	—	$	—
Deferred compensation assets	6.1		6.1		—		—
Foreign currency contracts	0.1		—		0.1		—
	$	14.7	$	14.6	$	0.1	$	—
Liabilities:
Contingent consideration	$	4.9	$	—	$	—	$	4.9
Deferred compensation liabilities	7.7		7.7		—		—
Interest rate swap contracts	4.7		—		4.7		—
Foreign currency contracts	0.1		—		0.1		—
	$	17.4	$	7.7	$	4.8	$	4.9

	Balance at		Basis of Fair Value Measurements
($ in millions)	December 31, 2013		Level 1		Level 2		Level 3
Assets:
Short-term investments	$	7.5	$	7.5	$	—	$	—
Deferred compensation assets	5.7		5.7		—		—
	$	13.2	$	13.2	$	—	$	—
Liabilities:
Contingent consideration	$	4.3	$	—	$	—	$	4.3
Deferred compensation liabilities	7.8		7.8		—		—
Interest rate swap contracts	5.6		—		5.6		—
	$	17.7	$	7.8	$	5.6	$	4.3

Summary of Changes in Level 3 Fair Value Measurements

The following table provides a summary of changes in our Level 3 fair value measurements:

	Six Months Ended June 30,
	2014			2013
Beginning Balance	$	4.3		$	3.3
Increase in fair value recorded in earnings	0.7			0.2
Payments	(0.1		)	—
Ending Balance	$	4.9		$	3.5