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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