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Property and Equipment
9 Months Ended
Sep. 30, 2016
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment

The table below presents the balances of major classes of assets and accumulated depreciation.
 
 
 
 
As of
(in millions)
 
Estimated Useful Lives
 
September 30,
2016
 
December 31,
2015
Land
 
 
 
$
90.2

 
$
89.9

Buildings
 
20 to 40 years
 
46.5

 
44.1

Advertising structures
 
5 to 20 years
 
1,692.8

 
1,643.6

Furniture, equipment and other
 
3 to 10 years
 
84.7

 
79.1

Construction in progress
 
 
 
36.3

 
29.1

 
 
 
 
1,950.5

 
1,885.8

Less: accumulated depreciation
 
 
 
1,280.5

 
1,184.1

Property and equipment, net
 
 
 
$
670.0

 
$
701.7



Depreciation expense was $26.7 million in the three months ended September 30, 2016, and $28.4 million in the three months ended September 30, 2015. Depreciation expense was $84.3 million in the nine months ended September 30, 2016, and $85.1 million in the nine months ended September 30, 2015.