Short and Long-Term Funding (Tables)

3 Months Ended

Mar. 31, 2026

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)	March 31, 2026		December 31, 2025
Short-term funding
Federal funds purchased	$	353,280	$	260,070
Securities sold under agreements to repurchase	42,372		47,794
Federal funds purchased and securities sold under agreements to repurchase	$	395,652	$	307,864
Long-term funding
Corporation senior notes, at par	$	300,000	$	300,000
Corporation subordinated notes, at par	300,000		300,000
Discount and capitalized costs	(7,190)		(7,484)
Subordinated debt fair value hedge(a)	(181)		1,760
Total long-term funding	$	592,629	$	594,276
Total short and long-term funding, excluding FHLB advances	$	988,281	$	902,140
FHLB advances
Short-term FHLB advances	$	3,010,000	$	2,855,250
Long-term FHLB advances	414,089		414,122
FHLB advances fair value hedge(a)	(2,327)		(1,278)
Total FHLB advances	$	3,421,762	$	3,268,094
Total short and long-term funding	$	4,410,043	$	4,170,234

(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)	March 31, 2026		December 31, 2025
Repurchase agreements
Agency mortgage-related securities	$	42,372	$	47,794