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Other Gains and Charges - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 26, 2018
Sep. 27, 2017
Sep. 26, 2018
Restructuring Cost and Reserve [Line Items]      
Sale leaseback transaction charges $ 6.8    
Property damages, net of (insurance recoveries) (0.8) $ 4.6  
Foreign currency transaction gain (loss) (0.8) 0.0  
Restaurant closure charges 1.7 0.2  
Accelerated depreciation 0.5 0.5  
Remodel-related costs 0.5 0.0  
Cyber security incident charges 0.4 0.0 $ 2.4
Restaurant impairment charges 0.0 $ 7.2  
Damage from Fire, Explosion or Other Hazard [Member]      
Restructuring Cost and Reserve [Line Items]      
Property damages, net of (insurance recoveries) (0.9)    
Chili's Restaurants [Member]      
Restructuring Cost and Reserve [Line Items]      
Sale Leaseback Transaction, Current Period Gain Recognized $ (20.1)