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Subsequent Events Subsequent Events (Details) - USD ($)
$ in Millions
Oct. 17, 2017
Sep. 14, 2017
Jul. 29, 2017
Subsequent Event      
Subsequent Event [Line Items]      
Potential termination fee $ 7.0    
Termination costs and expenses reimbursements 0.5    
Reverse termination fee 9.0    
AG Florida      
Subsequent Event [Line Items]      
Revenues     $ 650.0
AG Florida | Subsequent Event      
Subsequent Event [Line Items]      
Payments to acquire businesses $ 180.0    
Joliet, Illinois | Subsequent Event      
Subsequent Event [Line Items]      
Payments to acquire productive assets   $ 61.0