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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, Plant and Equipment

Property, plant and equipment consists of the following:
December 31,
(dollars in thousands)
 
2012
 
2011
Land
 
$
20,168

 
$
19,845

Buildings
 
86,498

 
89,873

Machinery and equipment
 
449,805

 
437,320

Furniture and fixtures
 
13,662

 
13,663

Software
 
19,987

 
20,893

Construction in progress
 
21,308

 
14,595

Gross property, plant and equipment
 
611,428

 
596,189

Less accumulated depreciation
 
353,274

 
331,471

Net property, plant and equipment
 
$
258,154

 
$
264,718



Property, plant and equipment are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, generally 3 to 14 years for equipment and furnishings and 10 to 40 years for buildings and improvements. Software consists of internally developed and purchased software packages for internal use. Capitalized costs include software packages, installation, and/or certain internal labor costs. These costs are generally amortized over a five-year period. Depreciation expense was $40.3 million, $40.9 million and $39.8 million for the years 2012, 2011 and 2010, respectively.

During 2011, we wrote down unutilized fixed assets within our Glass Operations segment. The non-cash charge of $0.8 million was included in cost of sales on the Consolidated Statements of Operations.

In 2010, we wrote down decorating assets in our Shreveport, Louisiana facility as a result of our decision to outsource our U.S. decorating business. A non-cash charge of $0.4 million was recorded in special charges on the Consolidated Statements of Operations. In addition, in 2010, we wrote down certain after-processing equipment within our Glass Operations segment that was no longer being used in our production process. A non-cash charge of $2.7 million was recorded in cost of sales on the Consolidated Statements of Operations. During 2011, we received a $1.0 million credit from the supplier of this equipment. Also in 2010, we recorded a $0.6 million reduction in the carrying value of our land at the Syracuse China manufacturing facility that was recorded in special charges on the Consolidated Statements of Operations. See note 7 for further discussion of these restructuring charges.