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Property and Equipment - Depreciation, Amortization, Capitalized Interest and Rent Expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 102.3 $ 91.0 $ 79.9
Amortization expense 21.8 12.7 7.5
Interest capitalized 2.0 1.3 1.5
Rent expense:      
Minimum rent payments 62.6 48.8 37.3
Contingent and other rents 29.4 21.6 18.2
Other 4.0 3.8 3.9
Total rent expense $ 96.0 $ 74.2 $ 59.4