Goodwill and Other Intangible Assets - Narrative (Details)	6 Months Ended
	Jun. 30, 2016
Weighted Average
Finite-Lived Intangible Assets [Line Items]
Intangible assets useful life	6 years 6 months
Customer loyalty programs
Finite-Lived Intangible Assets [Line Items]
Intangible assets useful life	7 years
Trademarks
Finite-Lived Intangible Assets [Line Items]
Intangible assets useful life	3 years 9 months