Property and Equipment, Net (Tables)
 12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and equipment are recognized at cost less accumulated depreciation. Depreciation is computed using the straight-line method based on estimated useful lives of the related assets as follows:
Buildings
39 years
Furniture and office equipment
3 - 7 years
Software
3 years
Vehicles
5 years
Property and equipment, net, consist of the following (in thousands):
 
As of December 31,
 
2014
 
2013
Land
$
7,091

 
$
7,091

Buildings
29,540

 
28,916

Furniture and office equipment
81,030

 
84,852

Software
12,454

 
10,075

Leasehold improvements
21,096

 
24,360

Vehicles
147

 
147

Total property and equipment
151,358

 
155,441

Less accumulated depreciation and amortization
(73,139
)
 
(64,016
)
Total property and equipment, net
$
78,219

 
$
91,425