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Property And Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Abstract]  
Components Of Property And Equipment
Property and equipment, net, as of June 30, 2012 and December 31, 2011 consisted of the following (table in thousands):
 
June 30, 2012
 
December 31, 2011
Equipment and software
$
563,494

 
$
512,754

Buildings and improvements
371,985

 
340,596

Furniture and fixtures
63,802

 
61,023

Construction in progress
75,670

 
68,707

Total property and equipment
1,074,951

 
983,080

Accumulated depreciation
(521,827
)
 
(457,590
)
Total property and equipment, net
$
553,124

 
$
525,490