Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]
Issuance of common stock (in shares)	2,361,686
Stock options exercised (in shares)	30,530	32,010
Vesting of restricted stock (in shares)	20,285	10,101
Equity-based compensation (in shares)	28,802	25,570
Cash dividends paid (in dollars per share)	$ 0.50	$ 0.50