Investment Securities - Textual (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Total investment securities	$ 559,312		$ 376,331
Debt Securities, Available-for-sale, Allowance for Credit Loss	0		0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0
Debt Securities, Trading, and Equity Securities, FV-NI	0		$ 0
Debt Securities, Available-for-Sale, Accrued Interest Writeoff	0	$ 0
Debt Securities, Held-to-Maturity, Accrued Interest, Writeoff	$ 0	$ 0
Concentration, debt securities	0.00%		0.00%
Investment securities held to maturity, at amortized cost, net (fair value of $559,312 and $376,331, respectively)	$ 615,653		$ 383,393
Debt Securities, Held-to-maturity, Nonaccrual	0		0
Debt Securities, Held-to-maturity, 90 Days or More Past Due, Still Accruing	0		0
Total investment securities available for sale	1,187,588		894,335
Available-for-sale Securities [Member]
Accrued Investment Income Receivable	4,600		3,500
Held-to-maturity Securities
Accrued Investment Income Receivable	$ 1,800		$ 1,100

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Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

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Amount of writeoff of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized by reversing interest income.

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Amount of allowance for credit 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 investment in debt security measured at amortized cost (held-to-maturity), 90 days or more past due and still accruing.

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

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