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Stock-Based Employee Compensation - Market-Based Stock Units Narrative (Details)
$ in Millions
1 Months Ended 12 Months Ended
Sep. 23, 2010
May 31, 2017
Installment
shares
Jun. 30, 2016
Installment
shares
Jun. 28, 2015
Installment
shares
Jun. 29, 2014
Installment
shares
Apr. 01, 2018
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period 4 years          
Market-Based Restricted Stock Units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Granted (in shares)   300,000.0 300,000 200,000 500,000  
Award vesting period   3 years 2 years 2 years 2 years  
Number of installments | Installment   3 2 2 2  
Market-based units outstanding (in shares)           700,000
Market-based stock units (in shares)           400,000
Weighted average remaining contractual life (in years)           10 months 28 days
Aggregate intrinsic value | $           $ 10.7
Compensation cost not yet recognized | $           $ 7.0
Period for recognition (in years)           9 months 29 days