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Regulatory Capital Requirements
 12 Months Ended
Dec. 31, 2024
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]  
Regulatory Capital Requirements Regulatory Capital Requirements
The Company is a bank holding company under the supervision of the Federal Reserve. Bank holding companies are subject to capital adequacy requirements of the Federal Reserve under the Bank Holding Company Act of 1956, as amended, and the regulations of the Federal Reserve. The Bank is a federally insured institution and thereby is subject to the capital requirements established by the FDIC. The Federal Reserve capital requirements generally parallel the FDIC requirements. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary, actions by regulators that, if undertaken, could have a direct material effect in the Consolidated Financial Statements and operations. Additionally, the Company and the Bank are required to maintain a capital conservation buffer of common equity Tier 1 capital above 2.5% to avoid restrictions on certain activities including payment of dividends, stock repurchases and discretionary bonuses to executive officers. Management believes that as of December 31, 2024, the Company and the Bank met all capital adequacy requirements to which they were subject.
As of December 31, 2024 and December 31, 2023, the most recent regulatory notifications categorized the Bank as well-capitalized under the regulatory framework for prompt corrective action. There have been no conditions or events since that notification that management believes have changed the Bank's categories.
The following table summarizes the Company's consolidated and the Bank's capital ratios compared to the regulatory "adequately capitalized" capital ratios and the regulatory minimum capital ratios needed to qualify as a "well capitalized" institution, as calculated under regulatory guideline at the dates presented:
 ActualAdequately Capitalized
Well-Capitalized (1)
 (Dollars in thousands)
December 31, 2024
Total capital ratio
Company$749,854 13.3 %$450,307 8.0 %$562,884 10.0 %
Bank742,222 13.2 450,002 8.0 562,503 10.0 
Tier 1 capital ratio
Company698,412 12.4 337,730 6.0 450,307 8.0 
Bank690,780 12.3 337,502 6.0 450,002 8.0 
Common equity Tier 1 capital ratio
Company676,354 12.0 253,298 4.5 365,874 6.5 
Bank690,780 12.3 253,126 4.5 365,627 6.5 
Leverage ratio
Company698,412 10.0 278,910 4.0 348,637 5.0 
Bank690,780 9.9 278,749 4.0 348,436 5.0 
December 31, 2023
Total capital ratio
Company$750,945 14.1 %$425,084 8.0 %$531,355 10.0 %
Bank732,379 13.8 424,808 8.0 531,009 10.0 
Tier 1 capital ratio
Company704,839 13.3 318,813 6.0 425,084 8.0 
Bank686,273 12.9 318,606 6.0 424,808 8.0 
Common equity Tier 1 capital ratio
Company683,074 12.9 239,110 4.5 345,381 6.5 
Bank686,273 12.9 238,954 4.5 345,156 6.5 
Leverage ratio
Company704,839 10.0 281,673 4.0 352,092 5.0 
Bank686,273 9.8 281,539 4.0 351,923 5.0 
(1) The ratios to meet the requirements to be deemed “well-capitalized” under prompt corrective action regulations are only applicable to the Bank. However, the Company manages its capital position as if the requirements apply to the consolidated Company and has presented the ratios as if they also applied on a consolidated basis.
As of December 31, 2024 and 2023, the capital measures reflected the revised CECL capital transition provisions adopted by the Federal Reserve and the FDIC that provided banking organizations that implemented CECL before the end of 2020 the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of capital benefit provided during the initial two-year delay.