Fair Value of Financial Instruments - Quantitative Information for Level 3 Fair Value Measurements (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned	$ 248	$ 248
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	12,304,608	12,562,323
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	3,923	1,569
Other real estate owned		248
Total assets	3,923	1,817
Nonrecurring \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	3,923	1,569
Other real estate owned		248
Total assets	3,923	1,817
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| CRE non-owner-occupied
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 3,852
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| CRE non-owner-occupied \| Cost to sell \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| CRE non-owner-occupied \| Cost to sell \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| CRE non-owner-occupied \| Cost to sell \| Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| SBA secured by real estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 71	$ 419
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| SBA secured by real estate \| Cost to sell \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000	0.1000
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| SBA secured by real estate \| Cost to sell \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000	0.1000
Nonrecurring \| Level 3 \| Fair value of collateral \| Investor loans secured by real estate \| SBA secured by real estate \| Cost to sell \| Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.1000	0.1000
Nonrecurring \| Level 3 \| Fair value of collateral \| Commercial loans \| Commercial and industrial
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		$ 1,150
Nonrecurring \| Level 3 \| Fair value of collateral \| Commercial loans \| Commercial and industrial \| Cost to sell \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0700
Nonrecurring \| Level 3 \| Fair value of collateral \| Commercial loans \| Commercial and industrial \| Cost to sell \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0700
Nonrecurring \| Level 3 \| Fair value of collateral \| Commercial loans \| Commercial and industrial \| Cost to sell \| Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.0700
Nonrecurring \| Level 3 \| Fair value of property
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned		$ 248
Nonrecurring \| Level 3 \| Fair value of property \| Cost to sell \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input		0.1000
Nonrecurring \| Level 3 \| Fair value of property \| Cost to sell \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input		0.1000
Nonrecurring \| Level 3 \| Fair value of property \| Cost to sell \| Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other real estate owned, input		0.1000

Financing Receivable, Measurement Input

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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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.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Publisher FASB
-URI https://asc.fasb.org//310-10/tableOfContent

+ Details

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- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

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- Definition

Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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