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, 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	$	—

December 31, 2018:
Assets
Derivative financial instruments	$	5,090	$	—	$	5,090	$	—
Loans held for sale		22,925		—		22,925		—
Securities available for sale:
Government-sponsored entities debt		48,251		—		48,251		—
State and municipal obligations		200,768		—		200,768		—
Mortgage-backed securities		1,268,048		—		1,268,048		—
Total securities available for sale		1,517,067		—		1,517,067		—
Mortgage servicing rights		34,727		—		—		34,727
	$	1,579,809	$	—	$	1,545,082	$	34,727
Liabilities
Derivative financial instruments	$	4,421	$	—	$	4,421	$	—

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, 2019:
OREO	$	11,964	$	—	$	—	$	11,964
Non-acquired impaired loans		15,444		—		—		15,444
December 31, 2018:
OREO	$	11,410	$	—	$	—	$	11,410
Non-acquired impaired loans		13,164		—		—		13,164

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, 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		—
December 31, 2018
Financial assets:
Cash and cash equivalents	$	408,983	$	408,983	$	408,983	$	—	$	—
Investment securities		1,542,671		1,542,671		25,604		1,517,067		—
Loans held for sale		22,925		22,925		—		22,925		—
Loans, net of allowance for loan losses		10,962,037		10,613,571		—		—		10,613,571
Accrued interest receivable		35,997		35,997		—		6,908		29,089
Mortgage servicing rights		34,727		34,727		—		—		34,727
Interest rate swap - non-designated hedge		3,824		3,824		—		3,824		—
Other derivative financial instruments (mortgage banking related)		1,267		1,267		—		1,267		—
Financial liabilities:
Deposits		11,646,933		10,561,394		—		10,561,394		—
Federal funds purchased and securities sold under agreements to repurchase		270,649		270,649		—		270,649		—
Other borrowings		266,084		269,134		—		269,134		—
Accrued interest payable		4,719		4,719		—		4,719		—
Interest rate swap - non-designated hedge		4,373		4,373		—		4,373		—
Interest rate swap - cash flow hedge		48		48		—		48		—
Off balance sheet financial instruments:
Commitments to extend credit		—		(88,424)		—		(88,424)		—