Schedule of recorded amount of assets and liabilities measured at fair value on a recurring 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, 2020:
Assets
Derivative financial instruments	$	813,899	$	—	$	813,899	$	—
Loans held for sale		290,467		—		290,467		—
Trading securities		10,674		—		10,674		—
Securities available-for-sale:
Government-sponsored entities debt		29,256		—		29,256		—
State and municipal obligations		520,039		—		520,039		—
Mortgage-backed securities		2,767,675		—		2,767,675		—
Corporate securities		13,702		—		13,702		—
Total securities available-for-sale		3,330,672		—		3,330,672		—
Mortgage servicing rights		43,820		—		—		43,820
	$	4,489,532	$	—	$	4,445,712	$	43,820
Liabilities
Derivative financial instruments	$	804,832	$	—	$	804,832	$	—

December 31, 2019:
Assets
Derivative financial instruments	$	16,252	$	—	$	16,252	$	—
Loans held for sale		59,363		—		59,363		—
Securities available-for-sale:
Government-sponsored entities debt		25,941		—		25,941		—
State and municipal obligations		208,415		—		208,415		—
Mortgage-backed securities		1,721,691		—		1,721,691		—
Total securities available-for-sale		1,956,047		—		1,956,047		—
Mortgage servicing rights		30,525		—		—		30,525
	$	2,062,187	$	—	$	2,031,662	$	30,525
Liabilities
Derivative financial instruments	$	31,273	$	—	$	31,273	$	—

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, 2020:
OREO	$	11,914	$	—	$	—	$	11,914
Bank property held for sale		36,006		—		—		36,006
Impaired loans		17,609		—		—		17,609
December 31, 2019:
OREO	$	6,539	$	—	$	—	$	6,539
Bank property held for sale		5,425		—		—		5,425
Non-acquired impaired loans		15,444		—		—		15,444

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, 2020
Financial assets:
Cash and cash equivalents	$	4,609,255	$	4,609,255	$	4,609,255	$	—	$	—
Trading securities		10,674		10,674		—		10,674		—
Investment securities		4,446,657		4,448,300		160,443		4,287,857		—
Loans held for sale		290,467		290,467		—		290,467		—
Loans, net of allowance for loan losses		24,206,825		24,757,859		—		—		24,757,859
Accrued interest receivable		107,601		107,601		—		12,952		94,649
Mortgage servicing rights		43,820		43,820		—		—		43,820
Interest rate swap - non-designated hedge		802,763		802,763		—		802,763		—
Other derivative financial instruments (mortgage banking related)		11,136		11,136		—		11,136		—
Financial liabilities:
Deposits		30,693,882		30,719,416		—		30,719,416		—
Federal funds purchased and securities sold under agreements to repurchase		779,666		779,666		—		779,666		—
Other borrowings		390,179		386,126		—		386,126		—
Accrued interest payable		7,103		7,103		—		7,103		—
Interest rate swap - non-designated hedge		804,832		804,832		—		804,832		—
Off balance sheet financial instruments:
Commitments to extend credit		—		136,726		—		136,726		—
December 31, 2019
Financial assets:
Cash and cash equivalents	$	688,704	$	688,704	$	688,704	$	—	$	—
Investment securities		2,005,171		2,005,171		49,124		1,956,047		—
Loans held for sale		59,363		59,363		—		59,363		—
Loans, net of allowance for loan losses		11,313,113		11,452,003		—		—		11,452,003
Accrued interest receivable		36,774		36,774		—		8,500		28,274
Mortgage servicing rights		30,525		30,525		—		—		30,525
Interest rate swap - non-designated hedge		15,350		15,350		—		15,350		—
Other derivative financial instruments (mortgage banking related)		902		902		—		902		—
Financial liabilities:
Deposits		12,177,096		11,406,477		—		11,406,477		—
Federal funds purchased and securities sold under agreements to repurchase		298,741		298,741		—		298,741		—
Other borrowings		815,936		818,210		—		818,210		—
Accrued interest payable		4,916		4,916		—		4,916		—
Interest rate swap - non-designated hedge		16,693		16,693		—		16,693		—
Interest rate swap - cash flow hedge		13,791		13,791		—		13,791		—
Other derivative financial instruments (mortgage banking related)		789		789		—		789		—
Off balance sheet financial instruments:
Commitments to extend credit		—		36,031		—		36,031		—