Fair Value of Financial Instruments - Schedule of Information about Significant Unobservable Inputs Utilized in Company's Nonrecurring Level 3 Fair Value Measurements (Details) $ in Thousands	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 1,653,450	$ 1,626,036
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	1,653,450	1,626,036
Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	1,916	423
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	1,916	423
Fair Value, Measurements, Nonrecurring | SBA—real estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 772	$ 423
Fair Value, Measurements, Nonrecurring | SBA—real estate | Income approach - income capitalization | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs		0.115
Fair Value, Measurements, Nonrecurring | SBA—real estate | Minimum | Income approach - income capitalization | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.080
Fair Value, Measurements, Nonrecurring | SBA—real estate | Maximum | Income approach - income capitalization | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.115
Fair Value, Measurements, Nonrecurring | SBA—real estate | Weighted Average | Income approach - income capitalization | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.099	0.115
Fair Value, Measurements, Nonrecurring | SBA—real estate | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 772	$ 423
Fair Value, Measurements, Nonrecurring | SBA—real estate | Significant Unobservable Inputs (Level 3) | Income approach - income capitalization | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	772	$ 423
Fair Value, Measurements, Nonrecurring | C&I
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 11
Fair Value, Measurements, Nonrecurring | C&I | Valuation Technique, Discounted Cash Flow | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.080
Fair Value, Measurements, Nonrecurring | C&I | Weighted Average | Valuation Technique, Discounted Cash Flow | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.080
Fair Value, Measurements, Nonrecurring | C&I | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 11
Fair Value, Measurements, Nonrecurring | C&I | Significant Unobservable Inputs (Level 3) | Valuation Technique, Discounted Cash Flow | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	11
Fair Value, Measurements, Nonrecurring | Home mortgage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 1,133
Fair Value, Measurements, Nonrecurring | Home mortgage | Minimum | Market approach - Market data comparison | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.031
Fair Value, Measurements, Nonrecurring | Home mortgage | Maximum | Market approach - Market data comparison | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.131
Fair Value, Measurements, Nonrecurring | Home mortgage | Weighted Average | Market approach - Market data comparison | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Measurements Inputs	0.070
Fair Value, Measurements, Nonrecurring | Home mortgage | Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 1,133
Fair Value, Measurements, Nonrecurring | Home mortgage | Significant Unobservable Inputs (Level 3) | Market approach - Market data comparison | Market data comparison
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 1,133