Securities - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021 USD ($) item security	Dec. 31, 2020 USD ($)
Additional Information
The number of holdings of securities of any one issuer other than the U.S. Government and its sponsored entities | security	0
Holdings of securities as percentage of shareholders' equity, considered as threshold for disclosure purpose	10.00%
Number of securities held	398
Number of available for sale securities held	107
Number of held to maturity securities held	291
Number of securities with fair values below amortized cost	12
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | $	$ 67,111,000	$ 30,930,000
Total unrealized loss for securities less than 12 months | $	1,121,000
Agency mortgage-backed securities
Additional Information
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | $	$ 67,111,000	$ 30,930,000