Mergers and Acquisitions - Consideration for FNB Financial Corp. (Details) - FNB Financial Corp. $ / shares in Units, $ in Thousands	Feb. 14, 2020 USD ($) $ / shares shares
Business Combination, Consideration Transferred [Abstract]
Net shares issued (in shares) | shares	954,797
Purchase price per share (in dollars per share) | $ / shares	$ 36.70
Value of stock consideration	$ 35,041
Cash consideration paid	15,001
Total purchase price	50,042
Fair value of net assets acquired	43,723
Goodwill resulting from merger	$ 6,319