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Property And Equipment (Tables)
 9 Months Ended
Sep. 30, 2015
Property And Equipment [Abstract]  
Schedule Of Property And Equipment

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

September 30,

 

2014

 

2015

Computers and equipment

$
13,670 

 

$
14,478 

Software and software development costs

 
77,104 

 

 
90,343 

Furniture and fixtures

 
3,306 

 

 
3,272 

Leasehold improvements

 
8,285 

 

 
16,011 

 

$
102,365 

 

$
124,104 

Less accumulated depreciation and amortization

 
(63,228)

 

 
(74,611)

Property and equipment, net

$
39,137 

 

$
49,493