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Property, Plant And Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment, Net [Abstract]  
Schedule Of Property, Plant And Equipment, Net
 
June 30,
2012
 
December 31,
2011
Land
$
3,985

 
$
1,882

Buildings
29,879

 
28,186

Machinery and equipment
72,000

 
66,237

Office equipment, furniture and fixtures
7,526

 
6,908

Computer software and hardware
49,432

 
48,198

Leasehold improvements
27,198

 
27,203

Construction in progress
9,390

 
8,032

 
199,410

 
186,646

Accumulated depreciation and amortization
(97,037
)
 
(88,856
)
 
$
102,373

 
$
97,790

Schedule Of Depreciation And Amortization Expense Related To Property, Plant And Equipment
 
Three months ended
 
Six months ended
 
June 30,
2012
 
June 30,
2011
 
June 30,
2012
 
June 30,
2011
Depreciation and amortization expense
$
4,479

 
$
3,127

 
$
8,859

 
$
6,264