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Securities - Narrative (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, accrued interest	$ 6,100,000	$ 5,400,000
Held to maturity, amortized cost	22,934,000
Held-to-maturity securities, nonaccrual status	0	0
Total Past Due
Schedule of Held-to-maturity Securities [Line Items]
Held to maturity, amortized cost	$ 0	$ 0

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Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at amortized cost (held-to-maturity).

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