CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Statement of Stockholders' Equity [Abstract]
Purchase of treasury shares, shares acquired (in shares)	190,491	70,406
Stock plan exercises; shares acquired (in shares)	23	5,451
Stock options exercised; shares issued (in shares)	1,166	12,995
Stock awards; shares issued (in shares)	2,500	7,635
Cash dividends declared per share (in dollars per share)	$ 0.45	$ 0.375