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Description of Business, Basis of Presentation and Summary of Significant Accounting Policies - Premises and Equipment (Details)
12 Months Ended
Dec. 31, 2013
Computer hardware and software [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life 5 years
Computer hardware and software [Member] | Minimum [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life 2 years
Computer hardware and software [Member] | Maximum [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life 3 years
Building [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life 40 years
Leasehold improvements [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life Term of the lease not to exceed useful life
Furniture and fixtures [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life 5 years
Office Equipment [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated useful life 5 years