Investments - Schedule of Available for Sale Investment Purchases, Proceeds and Gains & Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Purchases of AFS securities	$ 368,913	$ 158,357	$ 253,415
Proceeds from maturities, calls and prepayments of AFS securities	68,923	84,923	36,459
Gross proceeds from sales of AFS securities	86,981	35,603	170,495
Gross realized gains	661	594	1,558
Gross realized (losses)	(23)	(66)	(246)
Total net realized gains (losses) from investment sales and redemptions	$ 638	$ 528	$ 1,312

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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Amount of realized gain (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 outflow to acquire 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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