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Property and Equipment (Notes)
12 Months Ended
Dec. 31, 2014
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,
 
2014
 
2013
Land and building
$
767

 
$
767

Leasehold improvements
74,267

 
62,087

Machinery and equipment
8,071

 
5,727

Furniture and fixtures
7,257

 
6,498

Computer equipment
42,177

 
38,664

 
132,539

 
113,743

Less accumulated depreciation and amortization
(63,634
)
 
(57,137
)
Property and equipment - net
$
68,905

 
$
56,606



Depreciation and amortization expense related to property and equipment included in operating expenses amounted to approximately $8,377 in 2014, $8,858 in 2013 and $8,501 in 2012.