Investment Securities (Details 1) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Proceeds from sales of securities available-for-sale	$ 367,348	$ 173,425	$ 1,584,860
Available-for-sale Securities, Gross Realized Gains	1,680	13,222	29,584
Available-for-sale Securities, Gross Realized Losses	65	51	4,139
Realized Investment Gains	1,615	13,171	25,445
Available-for-sale Securities
Proceeds from sales of securities available-for-sale	$ 365,733	$ 160,254	$ 1,559,415

Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain (loss) on investment.

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