Subsequent Events (Details)		3 Months Ended		9 Months Ended
	Oct. 23, 2020 $ / shares	Sep. 30, 2020 $ / shares	Sep. 30, 2019 $ / shares	Sep. 30, 2020 $ / shares	Sep. 30, 2019 $ / shares	Oct. 06, 2020 office	Oct. 05, 2020 office
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share) | $ / shares		$ 0.25	$ 0.22	$ 0.75	$ 0.66
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared (in dollars per share) | $ / shares	$ 0.28
Number of bank branch offices consolidated | office							20
Number of bank branch offices operated | office						65