Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Consolidated Statements of Stockholders' Equity (unaudited) [Abstract]
Cash dividends - per share (in dollars per share)	$ 0.3	$ 0.28	$ 0.86	$ 0.82
Purchase of treasury shares (in shares)		119,342	400,000	400,000
Net issuance of shares to employee benefit plans and other stock plans (in shares)	2,849	1,672	71,243	108,599