DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Mar. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Values of Derivative Instruments

The table below presents the fair value of derivative financial instruments as well as their location on the unaudited Consolidated Statements of Financial Condition as of March 31, 2025.

	Fair Values of Derivative Instruments
(Dollars in thousands)		Count	Notional		Balance Sheet Location	Derivatives (Fair Value)
Derivatives designated as hedging instruments:
Interest rate options		18	$	1,500,000	Other assets	$	16,326
Total			$	1,500,000		$	16,326
Derivatives not designated as hedging instruments:
Interest rate swaps and options			$	2,955,827	Other assets	$	131,678
Interest rate swaps and options			2,955,827		Other liabilities	(131,680)
Interest rate lock commitments with clients			70,720		Other assets	1,067
Interest rate lock commitments with clients			1,669		Other liabilities	(4)
Forward sale commitments			5,141		Other assets	15
Forward sale commitments			67,817		Other liabilities	(261)
FX forwards			28,922		Other assets	662
FX forwards			18,811		Other liabilities	(564)
Risk participation agreements sold			110,493		Other liabilities	(104)
Risk participation agreements purchased			99,941		Other assets	33
Financial derivatives related to sales of certain Visa Class B shares			53,806		Other liabilities	(4,509)
Total derivatives			$	7,868,974		$	12,659

The table below presents the fair value of derivative financial instruments as well as their location on the unaudited Consolidated Statements of Financial Condition as of December 31, 2024.

	Fair Values of Derivative Instruments
(Dollars in thousands)		Count	Notional		Balance Sheet Location	Derivatives (Fair Value)
Derivatives designated as hedging instruments:
Interest rate options		18	$	1,500,000	Other assets	$	14,265
Total			$	1,500,000		$	14,265
Derivatives not designated as hedging instruments:
Interest rate swaps and options			$	2,942,675	Other assets	$	153,980
Interest rate swaps and options			2,942,675		Other liabilities	(153,980)
Interest rate lock commitments with clients			41,238		Other assets	612
Interest rate lock commitments with customers			3,658		Other liabilities	(18)
Forward sale commitments			28,927		Other assets	200
Forward sale commitments			27,071		Other liabilities	(39)
FX forwards			26,716		Other assets	1,407
FX forwards			25,924		Other liabilities	(1,205)
Risk participation agreements sold			110,948		Other liabilities	(90)
Risk participation agreements purchased			97,201		Other assets	25
Financial derivatives related to sales of certain Visa Class B shares			55,358		Other liabilities	(5,180)
Total derivatives			$	7,802,391		$	9,977

Schedule of Effect of Derivative Instruments on the Income Statement

The table below presents the effect of the derivative financial instruments on the unaudited Consolidated Statements of Income for the three months ended March 31, 2025 and March 31, 2024.

	Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion)				Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)
(Dollars in thousands)	Three Months Ended March 31,
Derivatives in Cash Flow Hedging Relationships	2025		2024
Interest rate options	$	2,875	$	(6,433)	Interest income
Total	$	2,875	$	(6,433)
	Amount of Gain (Loss) Recognized in Income				Location of Gain (Loss) Recognized in Income
(Dollars in thousands)	Three Months Ended March 31,
Derivatives not designated as hedging instruments	2025		2024
Interest rate swaps and options	$	1,380	$	2,435	Other income
Interest rate lock commitments with clients	415		252		Mortgage banking activities, net
Forward sale commitments	(368)		114		Mortgage banking activities, net
FX forwards	38		159		Other income
Risk participation agreements	(433)		(34)		Other income
Total	$	1,032	$	2,926