Short and Long-Term Funding (Tables)

9 Months Ended

Sep. 30, 2025

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

The following table presents the components of short-term funding (funding with original contractual maturities of one year or less), and long-term funding (funding with original contractual maturities greater than one year):

(in thousands)	Sep 30, 2025		Dec 31, 2024
Short-term funding
Federal funds purchased	$	335,095	$	370,325
Securities sold under agreements to repurchase	64,570		100,044
Federal funds purchased and securities sold under agreements to repurchase	$	399,665	$	470,369
Long-term funding
Corporation senior notes, at par	$	300,000	$	300,000
Corporation subordinated notes, at par	300,000		550,000
Discount and capitalized costs	(7,779)		(8,664)
Subordinated debt fair value hedge(a)	1,626		(3,996)
Finance leases	228		295
Total long-term funding	$	594,074	$	837,635
Total short and long-term funding, excluding FHLB advances	$	993,739	$	1,308,004
FHLB advances
Short-term FHLB advances	$	2,810,000	$	1,250,000
Long-term FHLB advances	412,251		611,551
FHLB advances fair value hedge(a)	(1,573)		(7,744)
Total FHLB advances	$	3,220,679	$	1,853,807
Total short and long-term funding	$	4,214,418	$	3,161,811

(a) For additional information on the fair value hedges, see Note 9.

Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block]

The remaining contractual maturity of the securities sold under agreements to repurchase on the consolidated balance sheets is presented in the following table:

	Overnight and Continuous
(in thousands)	Sep 30, 2025		Dec 31, 2024
Repurchase agreements
Agency mortgage-related securities	$	64,570	$	100,044