Property, equipment and software are summarized as follows (in millions):

                                                                                                                                                                                    

 

 

 

 

December 31,

 

 

 

Depreciation
period

 

 

 

2016

 

2015

 

Furniture, fixtures, computer equipment and software

   

3-7 years

   

$  

235.4

   

$  

228.0

 

Leasehold improvements

 

3-24 years

 

 

38.2

 

 

39.5

 

​  

​  

​  

​  

Property, equipment and software, gross

   

   

​  

273.6

   

​  

267.5

 

Accumulated depreciation

 

 

 

 

(239.4

)

 

(228.8

)

​  

​  

​  

​  

Property, equipment and software, net

   

   

$  

34.2

   

$  

38.7

 

​  

​  

​  

​  

​  

​  

​  

​