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Stock-Based Compensation
3 Months Ended
Sep. 02, 2017
Stock-Based Compensation [Abstract]  
Stock-Based Compensation Stock-Based Compensation

The following table summarizes the stock-based compensation expense and related income tax effect for the three months ended:
(In millions)

September 2, 2017
 
September 3, 2016
Stock-based compensation expense
$
1.6

 
$
3.4

Related income tax effect
0.5

 
1.2



Stock-based compensation expense recognized in the Condensed Consolidated Statements of Comprehensive Income for the three month periods ended September 3, 2016 has been reduced for estimated forfeitures, as it is based on awards ultimately expected to vest. Effective June 4, 2017, the company adopted ASU 2016-09 - Improvements to Employee Share-Based Payment Accounting. As of June 4, 2017 forward, the company has elected to record forfeitures as they occur rather than estimating forfeitures.

The following table includes common stock issued by the company related to the exercise of stock options, vesting of restricted stock units and vesting of performance share units.
 
 
Three Months Ended
(Shares)
 
September 2, 2017
 
September 3, 2016
Stock Options
 
150,556

 
191,023

Restricted Stock Units
 
90,671

 
81,095

Performance Share Units
 
130,179

 
113,040