Consolidated Statement of Shareholders' Equity Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Shares issued, (net of shares forfeitures) under stock incentive plans, Shares	29,262	(17,637)	38,505	(121,864)
Shares issued for stock options exercised, net, Shares	86,790	471,729	350,097	996,082
Cash dividends declared per share	$ 0.10	$ 0.08	$ 0.20	$ 0.16
Issuance of treasury shares, Shares	2,062	1,186	4,000	3,001
Purchase of common stock for treasury, Shares	(3,589,131)	(168,279)	(6,480,892)	(1,677,943)
Purchases of shares under employee stock plans, Shares	(1,579)	(2,165)	(358,459)	(197,398)