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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill impairment	$ 0	$ 0	$ 44,877
Amortization of intangibles	$ 8,500	$ 9,500	10,600
Consumer Banking Reporting Unit
Goodwill [Line Items]
Goodwill impairment			$ 44,900
CDI
Goodwill [Line Items]
Finite-lived intangible asset, useful life	10 years
CDI | FCB Financial Holdings, Inc.
Goodwill [Line Items]
Finite-lived intangible asset, useful life	10 years

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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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