Borrowings (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Borrowings Outstanding

Borrowings as of December 31, 2023 and 2022 and the related maximum amounts outstanding at the end of any month in each of the two years then ended are presented below.

	December 31				Maximum Outstanding
	2023		2022		2023		2022
	(dollars in thousands)
Federal funds purchased	$	240,000	$	191,000	$	862,000	$	292,000
Federal Home Loan Bank advances	1,100,000		1,250,000		1,720,000		1,250,000
Other borrowings:
Short-term promissory notes issued to customers and customer repurchase agreements	611,304		574,394		646,439		574,394
Other repurchase agreements	—		315,000		—		315,000
Other borrowings	838		1,179		1,151		—
Total other borrowings	$	612,142	$	890,573

Schedule of Senior and Subordinated Debts

The following is included in senior and subordinated debt as of December 31:

	2023		2022
	(dollars in thousands)
Subordinated debt	$	538,778	$	543,601
Unamortized discounts and issuance costs	(3,394)		(3,967)
Total senior debt and subordinated debt	$	535,384	$	539,634

Schedule of Maturities of Long-term Debt

The following table summarizes the scheduled maturities of senior and subordinated debt with an original maturity of one year or more as of December 31, 2023 (dollars in thousands):

Year
2024	$	168,778
2025	—
2026	—
2027	—
2028	—
Thereafter	370,000
Unamortized discounts and issuance costs	(3,394)
Total	$	535,384