Regulatory Capital (Tables)

6 Months Ended

Jun. 30, 2024

Banking and Thrift, Other Disclosure [Abstract]

Schedule of Compliance with Regulatory Capital Requirements Under Banking Regulations

At June 30, 2024, the adjusted transition amounts that were deferred and are being phased in for regulatory capital purposes are as follows:

	Adjusted Transition Amounts		Phase-In Amounts for the Year Ended		Phase-In Amounts for the Year Ended		Phase-In Amounts for the Six Months Ended		Remaining Adjusted Transition Amounts to be Phased-In
(Dollars in thousands)	December 31, 2021		December 31, 2022		December 31, 2023		June 30, 2024		June 30, 2024
Retained earnings	$	836,351	$	(209,088)	$	(209,088)	$	(209,088)	$	209,087
Allowance for credit losses	1,038,145		(259,536)		(259,536)		(259,536)		259,537
Liability for unfunded commitments	104,377		(26,094)		(26,094)		(26,095)		26,094
Deferred tax asset	306,171		(76,542)		(76,542)		(76,543)		76,544

(Dollars in thousands)	Actual				U.S. Basel III Minimum Requirements Plus Buffer(1)(2)
	Amount		Ratio		Amount			Ratio
As of June 30, 2024(3):
Common Equity Tier 1 Capital (to Risk-Weighted Assets)	$	3,122,582	13.4	%	$	1,631,764	>	7.0	%
Tier 1 Capital (to Risk-Weighted Assets)	$	3,122,582	13.4	%	$	1,981,427	>	8.5	%
Total Capital (to Risk-Weighted Assets)	$	3,423,131	14.7	%	$	2,447,645	>	10.5	%
Tier 1 Capital (to Average Assets)	$	3,122,582	10.8	%	$	1,154,807	>	4.0	%
As of December 31, 2023(3):
Common Equity Tier 1 Capital (to Risk-Weighted Assets)	$	3,019,973	12.3	%	$	1,719,621	>	7.0	%
Tier 1 Capital (to Risk-Weighted Assets)	$	3,019,973	12.3	%	$	2,088,111	>	8.5	%
Total Capital (to Risk-Weighted Assets)	$	3,334,140	13.6	%	$	2,579,432	>	10.5	%
Tier 1 Capital (to Average Assets)	$	3,019,973	10.2	%	$	1,184,213	>	4.0	%

(1)    Reflects the U.S. Basel III minimum required ratio plus the applicable capital conservation buffer.

(2)    The Bank’s regulatory capital ratios also exceeded all applicable standards for the Bank to qualify as “well capitalized” under the prompt corrective action framework.

(3)    For both June 30, 2024 and December 31, 2023, the actual amounts and the actual ratios include the adjusted transition amounts discussed above that were phased in at the beginning of 2024 and 2023.