Balance Sheet Offsetting (Tables)

3 Months Ended

Mar. 31, 2025

Offsetting [Abstract]

Offsetting Assets [Table Text Block]

The following table presents the interest rate and foreign exchange assets and liabilities subject to an enforceable master netting arrangement. The interest rate and foreign exchange agreements the Corporation has with its commercial customers are not subject to an enforceable master netting arrangement and are therefore excluded from these tables:

	Gross Amounts Recognized		Gross Amounts Subject to Master Netting Arrangements Offset on the Consolidated Balance Sheets				Net Amounts Presented on the Consolidated Balance Sheets		Gross Amounts Not Offset on the Consolidated Balance Sheets
($ in thousands)			Derivative Liabilities Offset		Cash Collateral Received				Security Collateral Received		Net  Amount
Derivative assets
March 31, 2025	$	62,246	$	(14,744)	$	(19,389)	$	28,112	$	(28,112)	$	—
December 31, 2024	79,807		(12,667)		(35,190)		31,950		(31,950)		—

	Gross Amounts Recognized		Gross Amounts Subject to Master Netting Arrangements Offset on the Consolidated Balance Sheets				Net Amounts Presented on the Consolidated Balance Sheets		Gross Amounts Not Offset on the Consolidated Balance Sheets
($ in thousands)			Derivative Assets Offset		Cash Collateral Pledged				Security Collateral Pledged		Net  Amount
Derivative liabilities
March 31, 2025	$	17,182	$	(14,744)	$	(140)	$	2,298	$	—	$	2,298
December 31, 2024	14,369		(12,667)		(250)		1,452		—		1,452

Offsetting Liabilities [Table Text Block]

The following table presents the interest rate and foreign exchange assets and liabilities subject to an enforceable master netting arrangement. The interest rate and foreign exchange agreements the Corporation has with its commercial customers are not subject to an enforceable master netting arrangement and are therefore excluded from these tables:

	Gross Amounts Recognized		Gross Amounts Subject to Master Netting Arrangements Offset on the Consolidated Balance Sheets				Net Amounts Presented on the Consolidated Balance Sheets		Gross Amounts Not Offset on the Consolidated Balance Sheets
($ in thousands)			Derivative Liabilities Offset		Cash Collateral Received				Security Collateral Received		Net  Amount
Derivative assets
March 31, 2025	$	62,246	$	(14,744)	$	(19,389)	$	28,112	$	(28,112)	$	—
December 31, 2024	79,807		(12,667)		(35,190)		31,950		(31,950)		—

	Gross Amounts Recognized		Gross Amounts Subject to Master Netting Arrangements Offset on the Consolidated Balance Sheets				Net Amounts Presented on the Consolidated Balance Sheets		Gross Amounts Not Offset on the Consolidated Balance Sheets
($ in thousands)			Derivative Assets Offset		Cash Collateral Pledged				Security Collateral Pledged		Net  Amount
Derivative liabilities
March 31, 2025	$	17,182	$	(14,744)	$	(140)	$	2,298	$	—	$	2,298
December 31, 2024	14,369		(12,667)		(250)		1,452		—		1,452