Fair Value - Reconciliation of all Assets Measured at Fair Value on Recurring Basis, Using Significant Unobservable Inputs (Level 3) (Details) - Fair Value, Measurements, Recurring - Significant Unobservable  Inputs (Level 3) - Obligations of State and Political Subdivisions - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance of Recurring Level 3 Assets	$ 0	$ 497
Total Losses Included in Other Comprehensive Income	0	(2)
Maturities / Calls	0	(495)
Acquired through Bank Acquisition	100	0
Ending Balance of Recurring Level 3 Assets	$ 100	$ 0