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Income Taxes - Additional information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2021
Income Taxes
Benefit of tax loss carryback under CARES Act		$ 31,468
Unrecognized tax benefits	$ 0
Atlantic Capital Bank
Income Taxes
Net operating loss carryforwards from previous acquisitions	40,600
Federal
Income Taxes
Operating loss carryforwards	78,500		$ 61,800
Federal | Atlantic Capital Bank
Income Taxes
Operating loss carryforwards	48,400
Annual limitation on operating loss carryforwards	4,800
Valuation allowance relating to operating loss carryforwards	25,500
Net operating loss carryforwards from previous acquisitions	40,600
Net operating loss carryforwards on final tax return	7,800
NOL fully utilized	7,800
State
Income Taxes
Operating loss carryforwards	160,400		169,400
Valuation allowance relating to operating loss carryforwards	$ 5,500		$ 137,700

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income (loss) exempt from benefit of tax loss carryback under CARES Act

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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