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Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Customers
Derivative Asset
Estimated Fair Value	$ (8,700)	$ 9,800
Third Parties
Derivative Asset
Estimated Fair Value		(9,800)
Derivative Liability
Estimated Fair Value	8,700
Interest rate swap
Derivative Asset
Estimated Fair Value	12,975
Derivative Liability
Estimated Fair Value	(12,989)
Interest rate swap | Non-hedging interest rate derivatives
Derivative Asset
Notional Amounts	319,526	322,726
Estimated Fair Value		15,219
Derivative Liability
Notional Amounts	$ 319,526	322,726
Estimated Fair Value		$ (15,286)

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