Deposit Accounts (Tables)

12 Months Ended

Dec. 31, 2024

Deposits Liabilities [Abstract]

Schedule of Components of Deposit Accounts and Weighted Average Interest Rates

Deposit accounts and the end-of-period weighted average interest rates paid consisted of the following at December 31:

	2024						2023
(Dollars in thousands)	Amount		% of Total Deposits		Weighted Average Interest Rate		Amount		% of Total Deposits		Weighted Average Interest Rate
Noninterest-bearing checking	$	4,617,013	31.9	%	—	%	$	4,932,817	32.9	%	—	%
Interest-bearing checking	2,898,810		20.0	%	1.58	%	2,899,621		19.3	%	1.38	%
Money market	4,577,646		31.7	%	2.34	%	4,572,693		30.5	%	2.00	%
Savings	260,283		1.8	%	0.37	%	295,749		2.0	%	0.29	%
Total transaction accounts	12,353,752		85.4	%	1.24	%	12,700,880		84.7	%	1.04	%
Time deposit accounts
$250,000 or less	1,045,605		7.2	%	4.38	%	853,013		5.7	%	4.04	%
Greater than $250,000	1,064,345		7.4	%	4.62	%	1,441,733		9.6	%	4.56	%
Total time deposit accounts	2,109,950		14.6	%	4.50	%	2,294,746		15.3	%	4.37	%
Total deposits	$	14,463,702	100.0	%	1.72	%	$	14,995,626	100.0	%	1.55	%

Schedule of Aggregate Annual Maturities of Certificates of Deposit Accounts

The aggregate annual maturities of certificates of deposit accounts at December 31, 2024 were as follows:

	2024
(Dollars in thousands)	Amount		Weighted Average Interest Rate
Within 3 months	$	828,901	4.70	%
4 to 6 months	699,649		4.47	%
7 to 12 months	423,014		4.29	%
13 to 24 months	153,350		4.29	%
25 to 36 months	3,218		0.44	%
37 to 60 months	1,818		0.05	%
Total	$	2,109,950	4.50	%

Schedule of Interest Expense on Deposit Accounts

Interest expense on deposit accounts for the years ended December 31 is summarized as follows:

(Dollars in thousands)	2024		2023		2022
Checking accounts	$	42,704	$	36,520	$	6,351
Money market accounts	106,126		69,917		12,735
Savings	951		915		391
Certificates of deposit accounts	108,207		110,095		20,616
Total	$	257,988	$	217,447	$	40,093