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Loans - Narrative (Details) | 3 Months Ended | 6 Months Ended | 24 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 USD ($) loan | Jun. 30, 2022 USD ($) loan | Jun. 30, 2021 USD ($) loan | Dec. 31, 2021 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans receivable | $ 5,528,093,000 | $ 5,528,093,000 |  | $ 5,231,331,000
Net deferred loan fees | 8,200,000 | 8,200,000 |  | 9,600,000
Accrued interest | 15,500,000 | 15,500,000 | $ 17,700,000 |
Decline in total collective reserves |  |  | $ 14,000,000 |
Decrease of individually evaluated portion of the reserve | 11,200,000 | 11,200,000 |  |
Funding commitments | 1,000 | 1,000 |  |
Nonaccrual mortgage loans held for sale recorded at fair value | $ 2,500,000 | $ 2,500,000 |  | 1,800,000
Number of loans that defaulted | loan |  | 0 | 3 |
Nonperforming Financial Instruments |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Gross interest income that would have been recorded |  | $ 438,000 | $ 880,000 |
Interest income |  | $ 0 | $ 0 |
Number of loans classified as TDRs | loan | 3 | 5 | 0 |
Outstanding principal balance |  |  | $ 743,000 |
Paycheck Protection Program |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans receivable | $ 901,000 | $ 901,000 |  | 105,800,000
Net deferred loan fees | 57,000 | 57,000 |  | 3,000,000
Payments for loan originations |  |  |  | 767,400,000
Real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans receivable | 3,550,233,000 | $ 3,550,233,000 |  | 3,133,334,000
Real estate | Nonperforming Financial Instruments |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of loans classified as TDRs | loan |  | 3 |  |
Real estate | Commercial real estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans receivable | 1,909,054,000 | $ 1,909,054,000 |  | 1,693,512,000
Commercial Portfolio Segment |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Total loans receivable | $ 1,430,239,000 | $ 1,430,239,000 |  | $ 1,454,235,000
Commercial Portfolio Segment | Nonperforming Financial Instruments |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Number of loans classified as TDRs | loan |  | 2 |  |

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