Regulatory Matters (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital (to risk weighted assets) minimum required for capital adequacy purposes	7.00%	7.00%
CET1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations	6.50%	6.50%
Total capital (to risk weighted assets) minimum required for capital adequacy purposes	0.10500	0.10500
Total capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations	0.100	0.100
Tier 1 capital (to risk weighted assets) minimum required for capital adequacy purposes	0.08500	0.08500
Tier 1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations	0.080	0.080
Tier 1 capital (to average assets) minimum required for capital adequacy purposes	0.04000	0.04000
Tier 1 capital (to average assets) to be well capitalized under prompt corrective action regulations	0.050	0.050
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital (to risk weighted assets) actual amount	$ 1,341,347	$ 1,261,518
CET1 capital (to risk weighted assets) actual ratio	14.23%	14.62%
Total capital (to risk weighted assets) actual amount	$ 1,412,904	$ 1,329,306
Total capital (to risk weighted assets) actual ratio	0.1499	0.1541
Tier 1 capital (to risk weighted assets) actual amount	$ 1,341,347	$ 1,261,518
Tier 1 capital (to risk weighted assets) actual ratio	0.1423	0.1462
Tier 1 capital (to average assets) actual amount	$ 1,341,347	$ 1,261,518
Tier 1 capital (to average assets) actual ratio	0.1178	0.1016
Parent Company
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital (to risk weighted assets) actual amount	$ 1,329,971	$ 1,269,329
CET1 capital (to risk weighted assets) actual ratio	14.03%	14.63%
Total capital (to risk weighted assets) actual amount	$ 1,415,854	$ 1,365,117
Total capital (to risk weighted assets) actual ratio	0.1494	0.1574
Tier 1 capital (to risk weighted assets) actual amount	$ 1,329,971	$ 1,269,329
Tier 1 capital (to risk weighted assets) actual ratio	0.1403	0.1463
Tier 1 capital (to average assets) actual amount	$ 1,329,971	$ 1,269,329
Tier 1 capital (to average assets) actual ratio	0.1163	0.1019

Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy with Buffer, Minimum

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The amount of CET1 capital as defined in the regulations.

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The CET1 risk based capital ratio (CET1 capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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CET1 capital divided by risk weighted assets as defined in the regulations.

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Amount of total capital as defined by regulatory framework.

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Amount of Tier 1 leverage capital as defined by regulatory framework.

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Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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Ratio of Tier 1 capital to average assets as defined by regulatory framework.

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Amount of Tier 1 risk-based capital as defined by regulatory framework.

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