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Property and Equipment
 12 Months Ended
Dec. 31, 2017
Property Plant And Equipment [Abstract]  
Property and Equipment

NOTE 4—PROPERTY AND EQUIPMENT

Property and equipment consisted of the following at December 31:

 

 

 

2017

 

 

2016

 

Leasehold improvements

 

$

18,873

 

 

$

17,847

 

Software

 

 

42,835

 

 

 

41,269

 

Furniture and equipment

 

 

26,076

 

 

 

26,570

 

Computers

 

 

28,826

 

 

 

28,874

 

 

 

 

116,610

 

 

 

114,560

 

Accumulated depreciation and amortization

 

 

(78,558

)

 

 

(74,076

)

Total property and equipment, net

 

$

38,052

 

 

$

40,484

 

Depreciation and amortization expense for the years ended December 31, 2017, 2016, and 2015, was approximately $17.7 million, $16.6 million, and $16.2 million, respectively.