Other Assets (Details 1) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Components of Other Assets
Federal Home Loan Bank and Federal Reserve Bank Stock	$ 34,093	$ 35,858
Derivative Financial Instruments	28,931	14,604
Low-Income Housing and Other Equity Investments	84,618	85,860
Deferred Compensation Plan Assets	41,464	31,871
Prepaid Expenses	15,140	8,533
Accounts Receivable	20,180	18,996
Other	48,248	35,160
Total	$ 272,674	$ 230,882