Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 0.60	$ 0.58	$ 1.20	$ 1.16
Exercise of stock options (in shares)	13,078	2,921	13,078	11,690
Purchase of treasury shares (in shares)	208,243	216,906	246,450	292,016