Basis of Presentation, Uses of Estimates and Significant Accounting Policies Useful lives for property, equipment and capitalized software (Details)	12 Months Ended
	Dec. 31, 2014
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	7 years
Building [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	35 years
Building [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	40 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful Life	7 years
Capitalized software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Capitalized software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	5 years