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Recently Issued Accounting Pronouncements - Impact of Lease Adoption (Details) - USD ($)
$ in Millions
Jun. 30, 2019
Jun. 29, 2019
Jun. 30, 2018
Jul. 01, 2017
Jul. 02, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Real estate assets   $ (179.9) $ (170.5)    
Stockholders' equity   725.8 $ 734.9 $ 803.5 $ 689.3
Accounting Standards Update 2016-02          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Real estate assets   7.0      
Finance obligation   $ 10.0      
Scenario, Forecast | Accounting Standards Update 2016-02          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Right of use asset $ 35.0        
Operating lease liability 40.0        
Stockholders' equity $ 3.0