Property, Equipment and Software - Components of Property, Equipment and Software (Details) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2014
|
Dec. 31, 2013
|
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Property, Plant and Equipment [Line Items] | ||
Property, equipment and software, gross | $ 134,690 | $ 114,491 |
Less: Accumulated depreciation and amortization | (68,175) | (59,716) |
Property, equipment and software, net | 66,515 | 54,775 |
Leasehold Improvements
|
||
Property, Plant and Equipment [Line Items] | ||
Property, equipment and software, gross | 20,700 | 18,756 |
Data Processing and Communications Equipment [Member]
|
||
Property, Plant and Equipment [Line Items] | ||
Property, equipment and software, gross | 53,356 | 47,719 |
Furniture, Fixtures, and Other Equipment
|
||
Property, Plant and Equipment [Line Items] | ||
Property, equipment and software, gross | 15,578 | 11,266 |
Software
|
||
Property, Plant and Equipment [Line Items] | ||
Property, equipment and software, gross | $ 45,056 | $ 36,750 |