v3.26.3
Regulatory Ratios and Capital (Tables)
 9 Months Ended
Sep. 30, 2026
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]  
Schedule of compliance with Regulatory Capital Requirements
The table below summarizes the Company’s and the Bank’s actual and required capital ratios under the Basel III Capital Rules and other standards. As shown in the table below, the Company’s and Bank’s capital ratios exceeded the regulatory definition of well capitalized as of September 30, 2026 and December 31, 2025.
September 30, 2026December 31, 2025
($ in thousands)Minimum Capital Required(2)Capital Required to be Well CapitalizedCapital AmountRatioCapital AmountRatio
The Company
CET1 capital (to risk-weighted assets)7.00 %N/A$3,436,713 12.20 %$3,394,471 12.13 %
Tier 1 capital (to risk-weighted assets)8.50 %6.00 %3,846,713 13.65 %3,804,471 13.60 %
Total capital (to risk-weighted assets)10.50 %10.00 %4,182,546 14.84 %4,509,943 16.12 %
Tier 1 capital (to average assets)(1)4.00 %N/A3,846,713 11.65 %3,804,471 11.65 %
The Bank
CET1 capital (to risk-weighted assets)7.00 %6.50 %$3,610,018 12.89 %$3,618,691 13.01 %
Tier 1 capital (to risk-weighted assets)8.50 %8.00 %3,610,018 12.89 %3,618,691 13.01 %
Total capital (to risk-weighted assets)10.50 %10.00 %3,945,851 14.08 %3,951,503 14.20 %
Tier 1 capital (to average assets)(1)4.00 %5.00 %3,610,018 11.03 %3,618,691 11.18 %
(1)    The Tier 1 capital ratio (to average assets) is not impacted by the Basel III Capital Rules; however, the Federal Reserve Board and the Federal Deposit Insurance Corporation may require the Company and the Bank, respectively, to maintain a Tier 1 capital ratio (to average assets) above the required minimum.
(2)    Percentages represent the minimum capital ratios plus, as applicable, the fully phased-in 2.5% CET1 capital buffer under the Basel III Capital Rules.