Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2017

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)	March 31, 2017		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	7.5	$	7.5	$	—	$	—
Foreign currency contracts	1.6		—		1.6		—
	$	9.1	$	7.5	$	1.6	$	—
Liabilities:
Contingent consideration	$	8.2	$	—	$	—	$	8.2
Deferred compensation liabilities	8.9		8.9		—		—
Interest rate swap contract	0.7		—		0.7		—
Foreign currency contracts	0.1		—		0.1		—
	$	17.9	$	8.9	$	0.8	$	8.2

	Balance at		Basis of Fair Value Measurements
($ in millions)	December 31, 2016		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	7.4	$	7.4	$	—	$	—
Foreign currency contracts	0.2		—		0.2		—
	$	7.6	$	7.4	$	0.2	$	—
Liabilities:
Contingent consideration	$	8.0	$	—	$	—	$	8.0
Deferred compensation liabilities	8.4		8.4		—		—
Interest rate swap contract	1.0		—		1.0		—
Foreign currency contracts	1.6		—		1.6		—
	$	19.0	$	8.4	$	2.6	$	8.0

Summary of Changes in Level 3 Fair Value Measurements

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

	Three Months Ended March 31,
	2017			2016
Beginning balance	$	8.0		$	6.0
Increase in fair value recorded in earnings	0.3			0.2
Payments	(0.1		)	—
Ending balance	$	8.2		$	6.2