Stock Based Compensation (Summary Of Restricted Share Activity) (Details) - Restricted Shares	6 Months Ended
	Dec. 01, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Outstanding, Beginning Balance (in shares) | shares	241,290
Number of Shares, Granted (in shares) | shares	0
Number of Shares, Vested (in shares) | shares	(1,650)
Number of Shares, Forfeited (in shares) | shares	(2,050)
Number of Shares, Outstanding, Ending Balance (in shares) | shares	237,590
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Outstanding, Beginning Balance (in dollars per share) | $ / shares	$ 45.30
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares	0
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares	48.48
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares	45.21
Weighted Average Grant Date Fair Value, Outstanding, Ending Balance (in dollars per share) | $ / shares	$ 45.28