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Property and Equipment (Notes)
12 Months Ended
Dec. 31, 2013
Property and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
Property and Equipment
The major classes of assets and total accumulated depreciation and amortization are as follows:
 
December 31,
 
2013
 
2012
Land and building
$
767

 
$
767

Leasehold improvements
62,087

 
55,005

Machinery and equipment
5,727

 
5,808

Furniture and fixtures
6,498

 
6,432

Computer equipment
38,664

 
30,676

 
113,743

 
98,688

Less accumulated depreciation and amortization
(57,137
)
 
(53,403
)
Property and equipment - net
$
56,606

 
$
45,285



Depreciation and amortization expense related to property and equipment included in operating expenses amounted to approximately $8,858 in 2013, $8,501 in 2012 and $6,732 in 2011.