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Property, Plant and Equipment (Tables)
12 Months Ended
Mar. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment, net consist of:
 
 
 
March 31, 2013
 
March 31, 2012
 
 
(In thousands)
Land
 
$
55,443

 
$
56,983

Buildings and improvements
 
253,960

 
184,615

Machinery and equipment
 
802,414

 
922,159

Construction in progress
 
59,176

 
94,861

 
 
1,170,993

 
1,258,618

Less: Accumulated depreciation
 
(612,878
)
 
(635,643
)
 
 
$
558,115

 
$
622,975