Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2023

Short-Term Borrowings

Schedule of short-term borrowings

	December 31,
(dollars in thousands)	2023		2022
Federal funds purchased	$	—	$	75,000
Short-term FHLB fixed-rate advances(1)		500,000		—
Total short-term borrowings	$	500,000	$	75,000

Schedule of selected information for short-term borrowings

	Year Ended December 31,
(dollars in thousands)	2023			2022			2021
Federal funds purchased:
Weighted-average interest rate at December 31,		—	%		4.35	%		—	%
Highest month-end balance	$	150,000		$	75,000		$	—
Average outstanding balance	$	17,247		$	11,521		$	—
Weighted-average interest rate paid		4.45	%		4.08	%		—	%
Short-term FHLB repo advance:
Weighted-average interest rate at December 31,		—	%		—	%		—	%
Highest month-end balance	$	400,000		$	—		$	—
Average outstanding balance	$	116,918		$	—		$	—
Weighted-average interest rate paid		5.25	%		—	%		—	%
Short-term FHLB fixed-rate advances:
Weighted-average interest rate at December 31,		4.71	%		—	%		—	%
Highest month-end balance	$	500,000		$	—		$	—
Average outstanding balance	$	144,932		$	—		$	—
Weighted-average interest rate paid		4.75	%		—	%		—	%