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Property, Plant and Equipment (Notes)
12 Months Ended
Mar. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consists of the following (amounts in thousands):
 
March 31, 2014
 
March 31, 2013
Land
$
55,624

 
$
47,102

Building and building improvements
411,149

 
396,611

Machinery and equipment
1,465,255

 
1,377,814

Projects in process
68,991

 
76,158

 
2,001,019

 
1,897,685

Less accumulated depreciation and amortization
1,469,052

 
1,383,141

 
$
531,967

 
$
514,544


 
Depreciation expense attributed to property, plant and equipment was $89.7 million, $88.3 million and $86.4 million for the fiscal years ending March 31, 2014, 2013 and 2012, respectively.