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Investment Securities - Other (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) security	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) security
Investment Securities
Number of securities consisted in portfolio | security	342		308
Number of securities in loss position | security	87		10
Aggregate fair value of securities in loss position	$ 95,309		$ 12,725
Loss position for 12 months or longer	1,486		1,229
Aggregate unrealized loss included in accumulated other comprehensive income (loss)	2,368		$ 325
Proceeds from sale of available for sale debt securities	0	$ 681
Gains realized on sales	2	0
Recognized net securities losses	$ 14	$ (1)

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