Number of financing receivables that have been modified by troubled debt restructurings.

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Amount of financing receivable 90 days or more past due and still accruing.

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Amount of financing receivable on nonaccrual status.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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Loans - Summary of Recorded Investment in Impaired Portfolio Loans by Category (Details) - Non-Covered Loans $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020 loan	Sep. 30, 2020 loan	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable, Past Due [Line Items]
Total Recorded Investment			$ 41,554	$ 38,507
Nonaccrual loans with no allowance			16,936
Financing Receivable, Modifications, Number of Contracts \| loan	3	6
Nonaccrual			38,591	34,818
Restructured, accruing			2,947	3,559
Loans over 90 days past due and still accruing interest			16	130
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Recorded Investment			30,530	21,770
Nonaccrual loans with no allowance			12,137	8,316
Financing Receivable, Modifications, Number of Contracts \| loan	2	3
Nonaccrual			27,655	18,158
Restructured, accruing			2,870	3,482
Loans over 90 days past due and still accruing interest			5	130
Commercial - investor owned
Financing Receivable, Past Due [Line Items]
Total Recorded Investment			1,846	9,579
Nonaccrual loans with no allowance			425	716
Nonaccrual			1,846	9,579
Restructured, accruing			0	0
Loans over 90 days past due and still accruing interest			0	0
Commercial - owner occupied
Financing Receivable, Past Due [Line Items]
Total Recorded Investment			6,892	2,940
Nonaccrual loans with no allowance			2,800	6,024
Nonaccrual			6,892	2,940
Restructured, accruing			0	0
Loans over 90 days past due and still accruing interest			0	0
Construction and land development
Financing Receivable, Past Due [Line Items]
Nonaccrual loans with no allowance				0
Residential real estate
Financing Receivable, Past Due [Line Items]
Total Recorded Investment			2,262	4,189
Nonaccrual loans with no allowance			1,562	3,190
Financing Receivable, Modifications, Number of Contracts \| loan	1	3
Nonaccrual			2,185	4,112
Restructured, accruing			77	77
Loans over 90 days past due and still accruing interest			0	0
Other
Financing Receivable, Past Due [Line Items]
Total Recorded Investment			24	29
Nonaccrual loans with no allowance			12	18,246
Nonaccrual			13	29
Restructured, accruing			0	0
Loans over 90 days past due and still accruing interest			$ 11	$ 0