Summary of Significant Accounting Policies - Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2015
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	15 years
Minimum [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	5 years
Minimum [Member] | Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	3 years
Minimum [Member] | Software [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	3 years
Minimum [Member] | Equipment held under capital leases [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	5 years
Maximum [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	40 years
Maximum [Member] | Furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	10 years
Maximum [Member] | Software [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	10 years
Maximum [Member] | Equipment held under capital leases [Member]
Property, Plant and Equipment [Line Items]
Useful Life (in years)	10 years