Fair Value Measurements (Details 6) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	$ 24,874	$ 6,875	$ 9,272
Other real estate and foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	267	78	74
Non Purchased Credit Impaired Loans and Leases
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Net Gain (Loss) from Nonrecurring Assets	$ 24,607	$ 6,797	$ 9,198