Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Cash and Cash Equivalents [Abstract]
Cash and Due From Banks	$ 44,760	$ 42,116	$ 38,267
Interest-Bearing Deposits at Banks	433,468	338,875	215,003
Total Cash and Cash Equivalents	478,228	380,991	253,270	$ 70,221
Total required reserves, including vault cash and Federal Reserve Bank deposits	0	0	0
Restricted cash pledged as collateral related to swap agreements and included in Cash and Due From Banks	$ 0	$ 500	$ 1,850