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No definition available.

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- Definition

Represents the number of depository branches.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Cash deposited in a special reserve account for the exclusive benefit of customers pursuant to SEC Regulations.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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- Definition

Amount of increase in allowance for credit loss on financing receivable purchased with credit deterioration.

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- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount at purchase price of financing receivable purchased with credit deterioration.

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- Definition

Amount of gain (loss) on sale of financing receivable.

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- Definition

Amount, before allowance for credit loss, of financing receivable.

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- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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- Definition

The cash inflow associated with the sale of receivables arising from the financing of goods and services.

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- Definition

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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No definition available.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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No definition available.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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No definition available.

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Description of Business and Summary of Significant Accounting Policies - Narrative (Details)		1 Months Ended	12 Months Ended
	Jun. 01, 2020 USD ($)	Jul. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) branch	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2020 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2017 USD ($)
Property, Plant and Equipment [Line Items]
Percentage of capital stock of the Bank held			100.00%
Number of depository branches \| branch			65
Cash reserves required by the Federal Reserve			$ 0
Aggregate amortized cost of SBA PPP loan portfolio sold			1,338,325,000	$ 86,313,000	$ 125,485,000
SBA PPP loans			13,236,433,000	8,722,311,000
ACL recorded related to PCD loans			21,242,000
Valuation allowance			0	0
Retained earnings			330,555,000	396,051,000			$ 396,051,000
Allowance for credit losses on loans			268,018,000	35,698,000	$ 36,072,000			$ 28,936,000
Deferred tax (liabilities) assets							(1,371,000)
Allowance for credit losses on off-balance sheet credit exposures			$ 31,100,000	3,300,000			3,279,000
Impact of CECL Adoption
Property, Plant and Equipment [Line Items]
SBA PPP loans							55,700,000
Retained earnings							(45,625,000)
Allowance for credit losses on loans				55,686,000			64,000,000.0
Deferred tax (liabilities) assets							18,346,000
Allowance for credit losses on off-balance sheet credit exposures							8,285,000
Core Deposits \| Minimum
Property, Plant and Equipment [Line Items]
Weighted average useful life (in years)			6 years
Core Deposits \| Maximum
Property, Plant and Equipment [Line Items]
Weighted average useful life (in years)			11 years
Premises
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)			30 years
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)			7 years
Computer and telecommunication
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)			3 years
Opus
Property, Plant and Equipment [Line Items]
Aggregate fair value of PCD loans acquired	$ 841,234,000
ACL recorded related to PCD loans	21,200,000
Commercial loans
Property, Plant and Equipment [Line Items]
SBA PPP loans			$ 2,229,588,000	$ 1,975,053,000
Allowance for credit losses on loans							20,118,000
Commercial loans \| Impact of CECL Adoption
Property, Plant and Equipment [Line Items]
Allowance for credit losses on loans							9,519,000
Commercial loans \| Opus
Property, Plant and Equipment [Line Items]
Aggregate fair value of PCD loans acquired	$ 54,687,000
Commercial loans \| SBA PPP
Property, Plant and Equipment [Line Items]
Aggregate amortized cost of SBA PPP loan portfolio sold		$ 1,130,000,000
Gain (loss) on sale of SBA PPP loan portfolio		$ 18,900,000
SBA PPP loans			$ 0			$ 1,130,000,000
Commercial loans \| Investor loans secured by real estate \| Impact of CECL Adoption
Property, Plant and Equipment [Line Items]
Allowance for credit losses on loans							16,100,000
Commercial loans \| Business loans secured by real estate \| Impact of CECL Adoption
Property, Plant and Equipment [Line Items]
Allowance for credit losses on loans							27,600,000
Consumer loans \| Retail loans \| Impact of CECL Adoption
Property, Plant and Equipment [Line Items]
Allowance for credit losses on loans							$ 2,500,000