Shareholders' Equity (Schedule Of Share-Based Incentive Plan Grant Activity) (Details) - Options and SAR's $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 02, 2021 USD ($) $ / shares shares
Shares
Shares Outstanding, Beginning Balance (in shares) | shares	817,790
Shares, Granted (in shares) | shares	181,177
Shares, Exercised (in shares) | shares	(322,820)
Shares, Forfeited (in shares) | shares	(95,330)
Shares, Expired (in shares) | shares	(3,308)
Shares Outstanding, Ending Balance (in shares) | shares	577,509
Shares, Exercisable, Ending Balance (in shares) | shares	180,146
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price. Beginning Balance (in dollars per share) | $ / shares	$ 73.34
Weighted Average Exercise Price, Granted (in dollars per share) | $ / shares	88.25
Weighted Average Exercise Price, Exercised (in dollars per share) | $ / shares	69.86
Weighted Average Exercise Price, Forfeited (in dollars per share) | $ / shares	77.26
Weighted Average Exercise Price, Expired (in dollars per share) | $ / shares	67.38
Weighted Average Exercise Price, Ending Balance (in dollars per share) | $ / shares	79.35
Weighted Average Exercise Price, Exercisable, End of Period (in dollars per share) | $ / shares	$ 71.22
Outstanding Weighted Average Remaining Contractual Terms (years)	7 years
Exercisable Weighted Average Remaining Contractual Term (years)	4 years 2 months 12 days
Outstanding Aggregate Intrinsic Value | $	$ 25.1
Exercisable Aggregate Intrinsic Value | $	$ 9.3