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Regulatory Capital Requirements - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Capital Ratios Description | The ratios above reflect the Company’s election to opt into the regulators’ joint CECL transition provision, which allows the Company to phase in the capital impact of the adoption of CECL over the next three years beginning January 1, 2022. Accordingly, capital ratios reflect 75% of the CECL impact as of December 31, 2024, 50% as of December 31, 2023, and 25% as of December 31, 2022. As of January 1, 2025, the capital impact of the adoption of CECL is fully phased in. |
Bank | O 2024 A Dividends |  |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Proceeds from Dividends Received | $ 46.0 |
Bank | O 2023 A Dividends |  |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Proceeds from Dividends Received |  | $ 35.0
Federal Deposit Corporation And Federal Reserve Board |  |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Capital conservation buffer above the minimum capital requirements | 7.20% |
Federal Deposit Corporation And Federal Reserve Board | Bank |  |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Capital conservation buffer above the minimum capital requirements | 8.44% |
Federal Deposit Corporation And Federal Reserve Board | Rules Phased in beginning January 2016 |  |
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] |  |
Additional capital conservation buffer requirement subsequent years ratio | 2.50% |

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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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 + Details
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