Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (Unaudited) - $ / shares	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends per common share (usd per share)	$ 0.22	$ 0.22	$ 0.22	$ 0.22	$ 0.44	$ 0.44