Schedule of amounts of assets and liabilities measured at fair value on a nonrecurring basis


			Quoted Prices
			In Active		Significant
			Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
(Dollars in thousands)	Fair Value		(Level 1)		(Level 2)		(Level 3)
December 31, 2022:
OREO	$	1,023	$	—	$	—	$	1,023
Bank property held for sale		17,754		—		—		17,754
Individually evaluated loans		56,719		—		—		56,719
December 31, 2021:
OREO	$	2,736	$	—	$	—	$	2,736
Bank property held for sale		9,578		—		—		9,578
Individually evaluated loans		20,802		—		—		20,802

Schedule of estimated fair value, and related carrying amount, of the Company's financial instruments


	Carrying		Fair
(Dollars in thousands)	Amount		Value		Level 1		Level 2		Level 3
December 31, 2022
Financial assets:
Cash and cash equivalents	$	1,312,563	$	1,312,563	$	1,312,563	$	—	$	—
Trading securities		31,263		31,263		—		31,263		—
Investment securities		8,189,780		7,756,707		179,717		7,576,990		—
Loans held for sale		28,968		28,968		—		28,968		—
Loans, net of allowance for credit losses		29,821,418		29,329,499		—		—		29,329,499
Accrued interest receivable		134,594		134,594		—		28,449		106,145
Mortgage servicing rights		86,610		86,610		—		—		86,610
SBA servicing asset		6,068		—		—		—		6,068
Interest rate swap - non-designated hedge		210,216		210,216		—		210,216		—
Other derivative financial instruments (mortgage banking related)		800		800		—		800		—
Financial liabilities:
Deposits		36,350,623		36,264,401		—		36,264,401		—
Federal funds purchased and securities sold under agreements to repurchase		556,417		556,417		—		556,417		—
Other borrowings		392,275		377,360		—		377,360		—
Accrued interest payable		6,218		6,218		—		6,218		—
Interest rate swap - non-designated hedge		1,033,980		1,033,980		—		1,033,980		—
Other derivative financial instruments (mortgage banking related)		163		163		—		163		—
Off balance sheet financial instruments:
Commitments to extend credit		—		(184,801)		—		(184,801)		—
December 31, 2021
Financial assets:
Cash and cash equivalents	$	6,721,571	$	6,721,571	$	6,721,571	$	—	$	—
Trading securities		77,689		77,689		—		77,689		—
Investment securities		7,173,947		7,132,110		160,568		6,971,542		—
Loans held for sale		191,723		191,723		—		191,723		—
Loans, net of allowance for credit losses		23,626,359		23,921,372		—		—		23,921,372
Accrued interest receivable		90,069		90,069		—		19,241		70,828
Mortgage servicing rights		65,620		65,620		—		—		65,620
Interest rate swap - non-designated hedge		408,776		408,776		—		408,776		—
Other derivative financial instruments (mortgage banking related)		5,966		5,966		—		5,966		—
Financial liabilities:
Deposits		35,054,829		35,050,516		—		35,050,516		—
Federal funds purchased and securities sold under agreements to repurchase		781,239		781,239		—		781,239		—
Other borrowings		327,066		334,640		—		334,640		—
Accrued interest payable		3,345		3,345		—		3,345		—
Interest rate swap - non-designated hedge		288,561		288,561		—		288,561		—
Off balance sheet financial instruments:
Commitments to extend credit		—		93,501		—		93,501		—

Schedule of reconciliation of the beginning and ending balances of Level 3 assets, comprised of Mortgage Servicing Rights, SBA servicing asset and liabilities recorded at fair value on a recurring basis


(Dollars in thousands)	Assets
Fair value, January 1, 2022	$	65,620
Servicing assets that resulted from transfers of financial assets		16,002
Changes in fair value due to valuation inputs or assumptions		14,886
Changes in fair value due to decay		(9,898)
Fair value, December 31, 2022	$	86,610

Fair value, January 1, 2021	$	43,820
Servicing assets that resulted from transfers of financial assets		26,733
Changes in fair value due to valuation inputs or assumptions		4,932
Changes in fair value due to decay		(9,865)
Fair value, December 31, 2021	$	65,620

Schedule of reconciliation of the beginning and ending balances of Level 3 assets, comprised of Mortgage Servicing Rights, SBA servicing asset and liabilities recorded at fair value on a recurring basis


(Dollars in thousands)	Assets
Beginning Balance, June 30, 2022	$	7,369
Servicing assets that resulted from transfers of financial assets		1,273
Changes in fair value due to decay		(1,845)
Changes in fair value due to valuation inputs or assumptions		(729)
Fair value, December 31, 2022	$	6,068