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Property, Plant and Equipment
12 Months Ended
Sep. 30, 2011
Property, Plant and Equipment
6.   Property, Plant and Equipment
 
Property, plant and equipment as of September 30, 2011 and 2010 were as follows (in thousands):
 
                 
    September 30,  
    2011     2010  
 
Buildings and land
  $ 54,330     $ 43,455  
Computer equipment and software
    68,476       69,278  
Machinery and equipment
    49,105       50,499  
Furniture and fixtures
    10,451       10,817  
Leasehold improvements
    17,301       22,758  
Capital projects in progress
    1,899       1,201  
                 
      201,562       198,008  
Less accumulated depreciation and amortization
    (132,966 )     (134,339 )
                 
Property, plant and equipment, net
  $ 68,596     $ 63,669  
                 
 
Depreciation expense was $12.6 million, $14.6 million and $15.6 million for the years ended September 30, 2011, 2010 and 2009, respectively.
 
The Company recorded an impairment charge of $1.3 million to write-down certain buildings and leasehold improvements to fair value in fiscal 2009, as a result of underlying circumstances discussed in Note 7.