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Investments - Schedule of Available for Sale Investment Purchases, Proceeds and Gains & Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Purchases of AFS securities	$ 68,702	$ 23,580
Proceeds from maturities, calls and prepayments of AFS securities	17,740	19,660
Gross proceeds from sales of AFS securities	13,645	5,560
Gross realized gains	128	67
Gross realized (losses)	0	(63)
Total net realized gains (losses) from investment sales and redemptions	$ 128	$ 4

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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).

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