CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Cash dividends, per share	$ 1.05	$ 0.89	$ 0.72
Stock issued pursuant to stock-based compensation	34,810	33,039	29,378
Stock Issued During Period, Shares, Purchase of Assets	154,593	169,143	50,215