Derivative Financial Instruments - Offsetting Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Other Liabilities
Cash collateral pledged	$ 12,000	$ 43,000
Other Assets
Other Assets
Gross position	527	729
Impact of master netting agreement	(527)	(176)
Derivative values with impact of master netting agreements (as carried on balance sheet)	0	553
Cash collateral pledged	11,890	42,874
Net position	11,890	43,427
Other Liabilities
Other Liabilities
Gross position	(909)	(287)
Impact of master netting agreement	527	176
Derivative values with impact of master netting agreements (as carried on balance sheet)	(382)	(111)
Cash collateral pledged	0	0
Net position	$ (382)	$ (111)

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