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Derivative Financial Instruments - Effects of Derivative Instruments on Statements of Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Derivatives in Hedging Relationships [Member] | Accumulated Other Comprehensive Income (Loss) and Other Interest Expense [Member]      
Derivatives, Fair Value [Line Items]      
Amount of gain (loss) reclassified from accumulated other comprehensive income (loss) and recognized in other interest expense     $ 479
Derivatives not Designated as Hedging Instruments [Member] | Mortgage Banking, Net [Member]      
Derivatives, Fair Value [Line Items]      
Amount of gain (loss) recognized in mortgage banking, net $ (15,436) $ 39,436 11,096
Derivatives not Designated as Hedging Instruments [Member] | Bank Card and Other Fees [Member]      
Derivatives, Fair Value [Line Items]      
Amount of gain (loss) recognized in bank card and other fees $ 1,649 $ (1,022) $ (776)