Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
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Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
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Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.

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Ratio of Common Equity Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.

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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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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
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Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.

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Regulatory Capital Requirements - Capital Conservation Buffer (Details) $ in Millions	Jan. 31, 2025 USD ($)	Dec. 31, 2024	Dec. 31, 2023
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Effective CET1 capital to risk-weighted assets (as a percent)		0.128	0.1239
Effective Tier 1 capital to risk-weighted assets (as a percent)		0.128	0.1239
Effective total capital to risk-weighted assets (as a percent)		0.1399	0.1357
Subsequent Event [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Stock repurchase program	$ 100.0
Banking Regulation, Standardized Approach
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Effective CET1 capital to risk-weighted assets (as a percent)		0.07
Effective Tier 1 capital to risk-weighted assets (as a percent)		0.085
Effective total capital to risk-weighted assets (as a percent)		0.105
Capital requirements above regulatory rate (as a percent)		0.025