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Restructuring Activities (Tables)
 12 Months Ended
Dec. 31, 2013
Restructuring Charges [Abstract]  
Restructuring Activities
The 2012 restructuring activities were initiated primarily as a result of personnel changes, organizational realignment to create efficiencies in our business processes and certain integration activities associated with the Amerigroup acquisition. Activity related to these liabilities for the year ended December 31, 2013 and 2012, by segment, is as follows:
 
Commercial
and Specialty
Business
 
Government
Business
 
Other
 
Total
2012 Restructuring Activities
 
 
 
 
 
 
 
Employee termination costs:
 
 
 
 
 
 
 
Costs incurred in 2012
$
70.8

 
$
64.5

 
$
3.5

 
$
138.8

2012 payments
(10.8
)
 
(9.8
)
 
(0.6
)
 
(21.2
)
Liabilities for employee termination costs ending balance at December 31, 2012
60.0

 
54.7

 
2.9

 
117.6

2013 payments
(34.6
)
 
(34.6
)
 
(1.7
)
 
(70.9
)
Liabilities released in 2013
(12.0
)
 
(15.9
)
 
(0.6
)
 
(28.5
)
Liabilities for employee termination costs ending balance at December 31, 2013
13.4

 
4.2

 
0.6

 
18.2

 
 
 
 
 
 
 
 
Lease and other contract exit costs:
 
 
 
 
 
 
 
Costs incurred in 2012
8.8

 
3.0

 
0.1

 
11.9

2012 payments
(0.1
)
 
—

 
—

 
(0.1
)
Liabilities for lease and other contract exit costs ending balance at December 31, 2012
8.7

 
3.0

 
0.1

 
11.8

2013 payments
(5.7
)
 
(2.0
)
 
(0.1
)
 
(7.8
)
Liabilities released in 2013
(0.6
)
 
(0.2
)
 
—

 
(0.8
)
Liabilities for lease and other contract exit costs ending balance at December 31, 2013
2.4

 
0.8

 
—

 
3.2

Total liabilities for 2012 restructuring activities ending balance at December 31, 2013
$
15.8

 
$
5.0

 
$
0.6

 
$
21.4