Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash dividends paid on common shares, per share	$ 0.75	$ 0.72	$ 0.62
Issuance under equity compensation plans, shares	131,564	146,005	137,271
Stock Issued During Period, Shares, Conversion of Convertible Securities	0	0	0
Shares Awarded Through Acquisition	7,777,272	4,977,214	3,990,822
Stock Repurchased During Period, Shares	1,299,527	456,251	396,737