Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment (Details)

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Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Property and equipment, cost:    
Property and equipment, gross $ 44,914 $ 40,073
Less accumulated depreciation and amortization (30,349) (27,307)
Property and equipment, net 14,565 12,766
Furniture and Fixtures [Member]
   
Property and equipment, cost:    
Property and equipment, gross 4,921 4,266
Furniture and Fixtures [Member] | Minimum [Member]
   
Property and equipment, cost:    
Estimated Useful Life 5 years  
Furniture and Fixtures [Member] | Maximum [Member]
   
Property and equipment, cost:    
Estimated Useful Life 7 years  
Computer Equipment and Software [Member]
   
Property and equipment, cost:    
Estimated Useful Life 3 years  
Property and equipment, gross 29,743 26,910
Office Equipment [Member]
   
Property and equipment, cost:    
Estimated Useful Life 5 years  
Property and equipment, gross 598 598
Leasehold Improvements [Member]
   
Property and equipment, cost:    
Property and equipment, gross $ 9,652 $ 8,299