Fair Value (Tables)

12 Months Ended

Dec. 31, 2023

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis, including financial assets and liabilities for which we have elected the fair value option, are summarized below:


			Fair Value Measurements at December 31, 2023 Using
(dollars in thousands)	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets
Equity securities	$	80,372	$	80,372	$	—	$	—
Investment securities available-for-sale:
U.S. Treasury	396,733		396,733		—		—
U.S. government-sponsored entities and agencies	1,231,264		—		1,231,264		—
Mortgage-backed securities - Agency	4,216,560		—		4,216,560		—
States and political subdivisions	535,260		—		535,260		—
Pooled trust preferred securities	11,337		—		11,337		—
Other securities	321,901		—		321,901		—
Loans held-for-sale	32,006		—		32,006		—
Derivative assets	166,302		—		166,302		—
Financial Liabilities
Derivative liabilities	268,916		—		268,916		—

			Fair Value Measurements at December 31, 2022 Using
(dollars in thousands)	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets
Equity securities	$	52,507	$	52,507	$	—	$	—
Investment securities available-for-sale:
U.S. Treasury	200,927		200,927		—		—
U.S. government-sponsored entities and agencies	1,175,080		—		1,175,080		—
Mortgage-backed securities - Agency	4,369,902		—		4,369,902		—
States and political subdivisions	663,852		—		663,852		—
Pooled trust preferred securities	10,811		—		10,811		—
Other securities	353,140		—		353,140		—
Loans held-for-sale	11,926		—		11,926		—
Derivative assets	169,001		—		169,001		—
Financial Liabilities
Derivative liabilities	380,704		—		380,704		—

Schedule of Assets Measured at Fair Value on a Non-Recurring Basis

Assets measured at fair value on a non-recurring basis at December 31, 2023 are summarized below:


			Fair Value Measurements at December 31, 2023 Using
(dollars in thousands)	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Collateral Dependent Loans:
Commercial loans	$	11,017	$	—	$	—	$	11,017
Commercial real estate loans	95,457		—		—		95,457
Foreclosed Assets:
Commercial real estate	1,669		—		—		1,669

Assets measured at fair value on a non-recurring basis at December 31, 2022 are summarized below:


			Fair Value Measurements at December 31, 2022 Using
(dollars in thousands)	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Collateral Dependent Loans:
Commercial loans	$	22,562	$	—	$	—	$	22,562
Commercial real estate loans	48,026		—		—		48,026

Schedule of Quantitative Information about Significant Unobservable Inputs Used in Fair Value Measurements

The table below provides quantitative information about significant unobservable inputs used in fair value measurements within Level 3 of the fair value hierarchy:

(dollars in thousands)

Fair
Value

Valuation
Techniques

Unobservable
Input

Range (Weighted

Average)(1)

December 31, 2023

Collateral Dependent Loans

Commercial loans

11,017

Discounted
cash flow

Discount for type of property,
age of appraisal, and current status

5% - 37% (27%)

Commercial real estate loans

95,457

Discounted
cash flow

Discount for type of property,
age of appraisal, and current status

2% - 38% (16%)

Foreclosed Assets

Commercial real estate (1)

1,669

Fair value of collateral

Discount for type of property,
age of appraisal, and current status

4% - 8% (4%)

December 31, 2022

Collateral Dependent Loans

Commercial loans

22,562

Discounted
cash flow

Discount for type of property,
age of appraisal, and current status

10% - 47% (28%)

Commercial real estate loans

48,026

Discounted
cash flow

Discount for type of property,
age of appraisal, and current status

1% - 26% (11%)

(1)Unobservable inputs were weighted by the relative fair value of the instruments.

Schedule of Difference Between the Aggregate Fair Value and the Aggregate Remaining Principal Balance

The difference between the aggregate fair value and the aggregate remaining principal balance for loans for which the fair value option has been elected was as follows:


(dollars in thousands)	Aggregate Fair Value		Difference		Contractual Principal
December 31, 2023
Loans held-for-sale	$	32,006	$	621	$	31,385

December 31, 2022
Loans held-for-sale	$	11,926	$	221	$	11,705

The following table presents the amount of gains and losses from fair value changes included in income before income taxes for financial assets carried at fair value:


(dollars in thousands)	Other Gains and (Losses)		Interest Income		Interest (Expense)		Total Changes in Fair Values Included in Current Period Earnings
Year Ended December 31, 2023
Loans held-for-sale	$	402	$	12	$	(14)	$	400

Year Ended December 31, 2022
Loans held-for-sale	$	(1,127)	$	10	$	(4)	$	(1,121)

Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments, Not Carried at Fair Value

The carrying amounts and estimated fair values of financial instruments not carried at fair value were as follows:


			Fair Value Measurements at December 31, 2023 Using
(dollars in thousands)	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets
Cash, due from banks, money market, and other interest-earning investments	$	1,175,058	$	1,175,058	$	—	$	—
Investment securities held-to-maturity:
U.S. government-sponsored entities and agencies	825,953		—		671,126		—
Mortgage-backed securities - Agency	1,029,131		—		881,994		—
State and political subdivisions	1,158,409		—		1,048,068		—
Loans, net:
Commercial	9,392,267		—		—		9,258,193
Commercial real estate	13,984,273		—		—		13,640,868
Residential real estate	6,678,606		—		—		5,579,999
Consumer	2,629,171		—		—		2,555,121
Accrued interest receivable	225,159		859		54,465		169,835

Financial Liabilities
Deposits:
Noninterest-bearing demand deposits	$	9,664,247	$	9,664,247	$	—	$	—
Checking, NOW, savings, and money market interest-bearing deposits	21,991,789		21,991,789		—		—
Time deposits	5,579,144		—		5,552,538		—
Federal funds purchased and interbank borrowings	390		390		—		—
Securities sold under agreements to repurchase	285,206		285,206		—		—
FHLB advances	4,280,681		—		4,090,954		—
Other borrowings	764,870		—		755,592		—
Accrued interest payable	57,094		—		57,094		—
Standby letters of credit	1,318		—		—		1,318

Off-Balance Sheet Financial Instruments
Commitments to extend credit	$	—	$	—	$	—	$	3,839


			Fair Value Measurements at December 31, 2022 Using
(dollars in thousands)	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets
Cash, due from banks, money market, and other interest-earning investments	$	728,412	$	728,412	$	—	$	—
Investment securities held-to-maturity:
U.S. government-sponsored entities and agencies	819,168		—		656,358		—
Mortgage-backed securities - Agency	1,106,817		—		982,963		—
State and political subdivisions	1,163,162		—		1,004,361		—
Loans, net:
Commercial	9,386,862		—		—		9,066,583
Commercial real estate	12,317,825		—		—		11,867,851
Residential real estate	6,438,525		—		—		5,372,491
Consumer	2,676,758		—		—		2,557,115
Accrued interest receivable	190,521		758		52,081		137,682

Financial Liabilities
Deposits:
Noninterest-bearing demand deposits	$	11,930,798	$	11,930,798	$	—	$	—
Checking, NOW, savings, and money market interest-bearing deposits	20,056,252		20,056,252		—		—
Time deposits	3,013,780		—		2,976,389		—
Federal funds purchased and interbank borrowings	581,489		581,489		—		—
Securities sold under agreements to repurchase	432,804		432,804		—		—
FHLB advances	3,829,018		—		3,739,780		—
Other borrowings	743,003		—		703,156		—
Accrued interest payable	19,547		—		19,547		—
Standby letters of credit	755		—		—		755
Off-Balance Sheet Financial Instruments
Commitments to extend credit	$	—	$	—	$	—	$	3,666