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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposit Premium, Percentage

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans And Leases Receivable, Percent Of Book Value

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of financial assets (as defined) recognized as of the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Mergers and acquisitions - Atlantic Capital Bank Narrative (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Apr. 05, 2019 USD ($) branch	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Business Acquisition [Line Items]
Goodwill		$ 168,486	$ 137,190	$ 168,486	$ 137,190	$ 137,190
Merger related expenses		295	$ 0	4,699	$ 1,193
Atlantic Capital Bank
Business Acquisition [Line Items]
Transaction value	$ 36,790
Deposits assumed in acquisition	$ 588,877
Deposit premium percentage	6.25%
Loans, net of fair value adjustments	$ 374,966
Percent of book value for acquired loans	99.32%
Goodwill	$ 31,396
Merger related expenses		$ 199		$ 4,614
TENNESSEE \| Atlantic Capital Bank
Business Acquisition [Line Items]
Number of branches acquired \| branch	11
GEORGIA \| Atlantic Capital Bank
Business Acquisition [Line Items]
Number of branches acquired \| branch	3