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Property, Plant and Equipment
 9 Months Ended
Sep. 30, 2017
Property Plant And Equipment [Abstract]  
Property, Plant and Equipment

5. Property, Plant and Equipment

The components of the Company’s property, plant and equipment at September 30, 2017 and December 31, 2016 were as follows:

 

September 30,

 

 

December 31,

 

 

 

2017

 

 

2016

 

Land

 

$

56.1

 

 

$

56.0

 

Buildings

 

 

415.0

 

 

 

403.0

 

Machinery and equipment

 

 

1,869.2

 

 

 

1,805.4

 

 

 

 

2,340.3

 

 

 

2,264.4

 

Less: Accumulated depreciation

 

 

(1,715.7

)

 

 

(1,614.1

)

Total

 

$

624.6

 

 

$

650.3

 

 

During the three and nine months ended September 30, 2017, depreciation expense was $34.6 million and $105.2 million, respectively.  During the three and nine months ended September 30, 2016, depreciation expense was $37.6 million and $116.2 million, respectively.