Property, Plant and Equipment

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment are recorded at historical cost, net of accumulated depreciation. Components of property, plant and equipment, net are summarized as follows:

	As of December 31,
(In millions)	2014			2013
Land	$	56.9		$	59.7
Buildings	947.7			961.5
Leasehold improvements	155.5			139.6
Machinery and equipment	1,011.3			944.5
Computer software and hardware	547.8			559.2
Furniture and fixtures	64.3			60.3
Construction in progress	168.6			144.2
Total cost	2,952.1			2,869.0
Less: accumulated depreciation	(1,186.4		)	(1,118.3		)
Total property, plant and equipment, net	$	1,765.7		$	1,750.7

Depreciation expense totaled $198.4 million, $187.8 million and $164.3 million for 2014, 2013 and 2012, respectively.

For 2014, 2013 and 2012, we capitalized interest costs related to construction in progress totaling approximately $6.4 million, $7.8 million and $25.4 million, respectively.

Weston Exit Costs

As a result of our decision to relocate our corporate headquarters to Cambridge, Massachusetts, we vacated part of our Weston, Massachusetts facility in the fourth quarter of 2013. We incurred a charge of $27.2 million in connection with this move. This charge represented our remaining lease obligation for the vacated portion of our Weston, Massachusetts facility, net of sublease income expected to be received. The term of our sublease to the vacated portion of our Weston, Massachusetts facility started in January 2014 and will continue through the remaining term of our lease agreement.