Minimum Regulatory Capital Requirements (Tables)

12 Months Ended

Dec. 31, 2024

Banking and Thrift, Interest [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The Company’s actual capital amounts and ratios are presented in the following table as of the dates indicated:

	Actual			For Capital Adequacy				To Be Well- Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio	Amount		Ratio		Amount		Ratio
	(Dollars in thousands)
As of December 31, 2024
Total regulatory capital (to risk-weighted assets)	$	3,363,799	16.78%	$	1,603,864	≥	8.0%	$	2,004,830	≥	10.0%
Common equity Tier 1 capital (to risk-weighted assets)	3,152,907		15.73%	902,174		≥	4.5%	1,303,140		≥	6.5%
Tier 1 capital (to risk-weighted assets)	3,152,907		15.73%	1,202,898		≥	6.0%	1,603,864		≥	8.0%
Tier 1 capital (to average assets) leverage	3,152,907		12.43%	1,014,319		≥	4.0%	1,267,899		≥	5.0%
As of December 31, 2023
Total regulatory capital (to risk-weighted assets)	$	3,187,130	19.55%	$	1,304,508	≥	8.0%	$	1,630,634	≥	10.0%
Common equity Tier 1 capital (to risk-weighted assets)	3,024,288		18.55%	733,785		≥	4.5%	1,059,912		≥	6.5%
Tier 1 capital (to risk-weighted assets)	3,024,288		18.55%	978,381		≥	6.0%	1,304,508		≥	8.0%
Tier 1 capital (to average assets) leverage	3,024,288		14.00%	864,206		≥	4.0%	1,080,258		≥	5.0%