Consolidated Condensed Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 1.22	$ 1.21
Stock Issued During Period, Shares, Acquisitions	0	0	1,037,205
Treasury Stock, Shares, Acquired	76,000	86,650
Stock Issued During Period, Shares, Restricted Stock Award, Gross	25,028	27,719