Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2023

Derivative Financial Instruments

Derivative financial instruments summary

				December 31, 2023						December 31, 2022
	Balance Sheet	Notional		Estimated Fair Value				Notional		Estimated Fair Value
(Dollars in thousands)	Location	Amount		Gain		Loss		Amount		Gain		Loss
Fair value hedge of interest rate risk:
Pay fixed rate swap with counterparty	Other Assets	$	9,188	$	220	$	—	$	12,289	$	414	$	—
Not designated hedges of interest rate risk:
Customer related interest rate contracts:
Matched interest rate swaps with borrowers	Other Assets and Other Liabilities		11,327,419		60,145		803,539		10,480,171		8,539		1,033,980
Matched interest rate swaps with counterparty (1)	Other Assets		11,235,952		108,820		—		10,400,733		201,263		—
Economic hedges of interest rate risk:
Pay floating rate swap with counterparty	Other Assets		1,660,000		(5)		—		—		—		—
Not designated hedges of interest rate risk – mortgage banking activities:
Contracts used to hedge mortgage servicing rights	Other Assets and Other Liabilities		142,000		2,605		—		35,000		—		163
Contracts used to hedge mortgage pipeline	Other Assets and Other Liabilities		77,500		1,154		947		51,000		800		—
Total derivatives		$	24,452,059	$	172,939	$	804,486	$	20,979,193	$	211,016	$	1,034,143

(1) The fair value of the interest rate swap derivative assets was reduced by $635.3 million in variation margin payments applicable to swaps centrally cleared through LCH and CME.

Schedule of notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline

(Dollars in thousands)	2023		2022
Mortgage loan pipeline	$	65,051	$	40,850
Expected closures		54,993		37,210
Fair value of mortgage loan pipeline commitments		1,154		524
Forward sales commitments		77,500		51,000
Fair value of forward commitments		(947)		276