Summary of Significant Accounting Policies (Details 3) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Definite-lived And Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets	$ 0	$ 0	$ 0
Acquired trade names
Definite-lived And Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets	0	0	0
Goodwill
Definite-lived And Indefinite-lived Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0