10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended March 31, 2024

OR

☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the Transition Period from ___________ to ___________

Commission file number 001-35095

UNITED COMMUNITY BANKS, INC.

(Exact name of registrant as specified in its charter)

Georgia	58-1807304
(State of incorporation)	(I.R.S. Employer Identification No.)

125 Highway 515 East
Blairsville, Georgia	30512
(Address of principal executive offices)	(Zip code)

(706) 781-2265

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class	Trading Symbol(s)	Name of Each Exchange on Which Registered
Common stock, par value $1 per share	UCBI	Nasdaq Global Select Market
Depositary shares, each representing 1/1000th interest in a share of Series I Non-Cumulative Preferred Stock	UCBIO	Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Date File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). 

Yes ☐ No ☒

There were 119,141,235 shares of the registrant’s common stock, par value $1 per share, outstanding as of April 30, 2024.

UNITED COMMUNITY BANKS, INC.

FORM 10-Q

INDEX

		Glossary of Defined Terms	3
		Cautionary Note Regarding Forward-looking Statements	4
PART I - Financial Information
	Item 1.	Financial Statements
		Consolidated Balance Sheets (unaudited)	5
		Consolidated Statements of Income (unaudited)	6
		Consolidated Statements of Comprehensive Income (unaudited)	7
		Consolidated Statements of Changes in Shareholders’ Equity (unaudited)	8
		Consolidated Statements of Cash Flows (unaudited)	9
		Notes to Consolidated Financial Statements	10
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	36
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	56
	Item 4.	Controls and Procedures	56
PART II - Other Information
	Item 1.	Legal Proceedings	57
	Item 1A.	Risk Factors	57
	Item 5.	Other Information.	57
	Item 6.	Exhibits	57

2

Glossary of Defined Terms

The following terms may be used throughout this report, including the consolidated financial statements and related notes.

Term	Definition
2023 10-K	United’s Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 23, 2024
ACL	Allowance for credit losses
AFS	Available-for-sale
ALCO	Asset/Liability Management Committee
AOCI	Accumulated other comprehensive income (loss)
ASU	Accounting standards update
Bank	United Community Bank
Board	United Community Banks Inc., Board of Directors
BOLI	Bank-owned life insurance
CECL	Current expected credit loss
CET1	Common equity tier 1
CME	Chicago Mercantile Exchange
CRE	Commercial real estate
Company	United Community Banks Inc. (interchangeable with "United" below)
CVA	Credit valuation adjustment
FASB	Financial Accounting Standards Board
FDIC	Federal Deposit Insurance Corporation
FDM	Modification made to borrowers experiencing financial difficulty
Federal Reserve	Federal Reserve System
First Miami	First Miami Bancorp, Inc. and its wholly-owned subsidiary, First National Bank of South Miami
FHLB	Federal Home Loan Bank
FOMC	Federal Reserve’s Federal Open Markets Committee
FTE	Fully taxable equivalent
GAAP	Accounting principles generally accepted in the United States of America
GSE	U.S. government-sponsored enterprise
Holding Company	United Community Banks, Inc. on an unconsolidated basis
HTM	Held-to-maturity
LIHTC	Low- income housing tax credit
MD&A	Management's Discussion and Analysis of Financial Condition and Results of Operations
MBS	Mortgage-backed securities
NOW	Negotiable order of withdrawal
NPA	Nonperforming asset
OCI	Other comprehensive income (loss)
OREO	Other real estate owned
PAM	Proportional amortization method
PCD	Purchased credit deteriorated
Progress	Progress Financial Corporation and its wholly-owned subsidiary, Progress Bank & Trust
Report	Quarterly Report on Form 10-Q for the quarterly period ending March 31, 2024
SBA	United States Small Business Administration
SEC	Securities and Exchange Commission
U.S. Treasury	United States Department of the Treasury
United	United Community Banks, Inc. and its direct and indirect subsidiaries
USDA	United States Department of Agriculture
VIE	Variable interest entity

3

Cautionary Note Regarding Forward-looking Statements

This Report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are neither statements of historical or current fact nor are they assurances of future performance and generally can be identified by the use of forward-looking terminology such as “believes”, “expects”, “may”, “will”, “could”, “should”, “projects”, “plans”, “goal”, “targets”, “potential”, “estimates”, “pro forma”, “seeks”, “intends”, or “anticipates”, or similar expressions. Forward-looking statements include discussions of strategy, financial projections, guidance and estimates (including their underlying assumptions), statements regarding plans, objectives, expectations or consequences of various transactions or events, and statements about our future performance, operations, products and services, and should be viewed with caution.

Because forward-looking statements relate to the future, they are subject to known and unknown risks, uncertainties, assumptions, and changes in circumstances, many of which are beyond our control, and that are difficult to predict as to timing, extent, likelihood and degree of occurrence, and that could cause actual results to differ materially from the results implied or anticipated by the statements. Important factors that could cause our actual results and financial condition to differ materially from those indicated in the forward-looking statements include, but are not limited to the following:

•negative economic and political conditions that adversely affect the general economy, the banking sector, housing prices, the real estate market, the job market, consumer confidence, the financial condition of our borrowers and consumer spending habits, which may affect, among other things, the levels of NPAs, charge-offs and provision expense;

•changes in loan underwriting, credit review or loss policies associated with economic conditions, examination conclusions or regulatory developments;

•the potential effects of pandemics or public health conditions on the economic and business environments in which we operate, including the impact of actions taken by governmental authorities to address these situations;

•strategic, market, operational, liquidity and interest rate risks associated with our business;

•potential fluctuations or unanticipated changes in the interest rate environment, including interest rate changes made by the Federal Reserve, replacement or reform of other interest rate benchmarks, as well as cash flow reassessments may reduce net interest margin and/or the volumes and values of loans made or held as well as the value of other financial assets;

•any unanticipated or greater than anticipated adverse conditions in the national or local economies in which we operate;

•our loan concentration in industries or sectors that may experience unanticipated or greater than anticipated adverse conditions than other industries or sectors in the national or local economies in which we operate;

•the risks of expansion into new geographic or product markets;

•risks with respect to our ability to identify and complete future mergers or acquisitions as well as our ability to successfully expand and integrate those businesses and operations that we acquire;

•our ability to attract and retain key employees;

•competition from financial institutions and other financial service providers including non-bank financial technology providers and our ability to attract customers from other financial institutions;

•losses due to fraudulent and negligent conduct of our customers, third-party service providers or employees;

•cybersecurity risks and the vulnerability of our network and online banking portals, and the systems or parties with whom we contract, to unauthorized access, computer viruses, phishing schemes, spam attacks, human error, natural disasters, power loss and other security breaches that could adversely affect our business and financial performance or reputation;

•our reliance on third parties to provide key components of our business infrastructure and services required to operate our business;

•the risk that we may be required to make substantial expenditures to keep pace with regulatory initiatives and the rapid technological changes in the financial services market;

•the availability of and access to capital, particularly if there were to be increased capital requirements or enhanced regulatory supervision;

•legislative, regulatory or accounting changes that may adversely affect us;

•volatility in the ACL resulting from the CECL methodology, either alone or as that may be affected by conditions affecting our business;

•adverse results (including judgments, costs, fines, reputational harm, inability to obtain necessary approvals and/or other negative effects) from current or future litigation, regulatory proceedings, examinations, investigations, or similar matters, or developments related thereto;

•any matter that would cause us to conclude that there was impairment of any asset, including intangible assets, such as goodwill;

•limitations on our ability to declare and pay dividends and other distributions from the Bank to the Holding Company, which could affect Holding Company liquidity, including its ability to pay dividends to shareholders or take other capital actions;

•the potential effects of events beyond our control that may have a destabilizing effect on financial markets and the economy, such as inflation or recession, terrorist activities, wars and other foreign conflicts, climate change, disruptions in our customers’ supply chains, disruptions in transportation, essential utility outages or trade disputes and related tariffs; and

•other risks and uncertainties disclosed in documents filed or furnished by us with or to the SEC, any of which could cause actual results to differ materially from future results expressed, implied or otherwise anticipated by such forward-looking statements.

We caution readers that the foregoing list of factors is not exclusive, is not necessarily in order of importance and readers should not place undue reliance on forward-looking statements. Additional factors that may cause actual results to differ materially from those contemplated by any forward-looking statements also may be found in our 2023 10-K (including the “Risk Factor” section of that report), Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K filed with the SEC and available at the SEC’s website at http://www.sec.gov. We do not intend to and, except as required by law, hereby disclaim any obligation to update or revise any forward-looking statement contained in this Report, which speaks only as of the date of its filing with the SEC, whether as a result of new information, future events, or otherwise. The financial statements and information contained herein have not been reviewed, or confirmed for accuracy or relevance, by the FDIC or any other regulator.

4

Part I. FINANCIAL INFORMATION

Item 1. Financial Statements

UNITED COMMUNITY BANKS, INC.

Consolidated Balance Sheets (Unaudited)

(in thousands, except share data)	March 31, 2024		December 31, 2023
ASSETS
Cash and due from banks	$	203,932	$	200,781
Interest-bearing deposits in banks	758,001		803,094
Cash and cash equivalents	961,933		1,003,875
Debt securities available-for-sale	3,393,399		3,331,084
Debt securities held-to-maturity (fair value $2,042,912 and $2,095,620, respectively)	2,465,133		2,490,848
Loans held for sale	38,140		33,008
Loans and leases held for investment	18,374,844		18,318,755
Allowance for credit losses - loans and leases	(210,934)		(208,071)
Loans and leases, net	18,163,910		18,110,684
Premises and equipment, net	386,052		378,421
Bank owned life insurance	342,486		345,371
Goodwill and other intangible assets, net	987,539		990,087
Other assets	626,296		613,873
Total assets	$	27,364,888	$	27,297,251
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities:
Deposits:
Noninterest-bearing demand	$	6,409,659	$	6,534,307
Interest-bearing deposits	16,922,350		16,776,304
Total deposits	23,332,009		23,310,611
Long-term debt	324,854		324,823
Accrued expenses and other liabilities	407,915		400,292
Total liabilities	24,064,778		24,035,726
Shareholders' equity:
Preferred stock, $1 par value: 10,000,000 shares authorized; 3,662 shares Series I issued and   outstanding; $25,000 per share liquidation preference	88,266		88,266
Common stock, $1 par value: 200,000,000 shares authorized,   119,136,518 and 119,010,319 shares issued and outstanding, respectively	119,137		119,010
Common stock issuable: 560,833 and 620,108 shares, respectively	11,923		13,110
Capital surplus	2,702,807		2,699,112
Retained earnings	614,612		581,219
Accumulated other comprehensive loss	(236,635)		(239,192)
Total shareholders' equity	3,300,110		3,261,525
Total liabilities and shareholders' equity	$	27,364,888	$	27,297,251

See accompanying notes to consolidated financial statements (unaudited).

5

UNITED COMMUNITY BANKS, INC.

Consolidated Statements of Income (Unaudited)

	Three Months Ended March 31,
(in thousands, except per share data)	2024		2023
Interest revenue:
Loans, including fees	$	283,983	$	236,431
Investment securities, including tax exempt of $1,721 and $2,110, respectively	46,436		39,986
Deposits in banks and short-term investments	6,309		3,070
Total interest revenue	336,728		279,487
Interest expense:
Deposits	133,784		57,861
Short-term borrowings	—		1,148
Federal Home Loan Bank advances	—		5,112
Long-term debt	3,795		3,896
Total interest expense	137,579		68,017
Net interest revenue	199,149		211,470
Provision for credit losses	12,899		21,783
Net interest revenue after provision for credit losses	186,250		189,687
Noninterest income:
Service charges and fees	9,264		8,699
Mortgage loan gains and other related fees	7,511		4,521
Wealth management fees	6,313		5,724
Gains from sales of other loans	1,537		1,916
Lending and loan servicing fees	4,210		4,016
Securities losses, net	—		(1,644)
Other	10,752		6,977
Total noninterest income	39,587		30,209
Total revenue	225,837		219,896
Noninterest expenses:
Salaries and employee benefits	84,985		78,698
Communications and equipment	11,920		10,008
Occupancy	11,099		9,889
Advertising and public relations	1,901		2,349
Postage, printing and supplies	2,648		2,537
Professional fees	5,988		6,072
Lending and loan servicing expense	1,827		2,319
Outside services - electronic banking	2,918		3,425
FDIC assessments and other regulatory charges	7,566		4,001
Amortization of intangibles	3,887		3,528
Merger-related and other charges	2,087		8,631
Other	8,176		8,348
Total noninterest expenses	145,002		139,805
Income before income taxes	80,835		80,091
Income tax expense	18,204		17,791
Net income	$	62,631	$	62,300
Net income available to common shareholders	$	60,713	$	60,242
Net income per common share:
Basic	$	0.51	$	0.52
Diluted	0.51		0.52
Weighted average common shares outstanding:
Basic	119,662		115,451
Diluted	119,743		115,715

See accompanying notes to consolidated financial statements (unaudited). 

6

UNITED COMMUNITY BANKS, INC.

Consolidated Statements of Comprehensive Income (Unaudited)

	Three Months Ended March 31,
(in thousands)	Before-tax Amount		Tax (Expense) Benefit		Net of Tax Amount
2024
Net income	$	80,835	$	(18,204)	$	62,631
Other comprehensive income:
Unrealized gains on available-for-sale securities	356		(209)		147
Amortization of unrealized losses on held-to-maturity securities transferred from available-for-sale	2,063		(493)		1,570
Derivative instruments designated as cash flow hedges:
Unrealized holding gains on derivatives	2,524		(645)		1,879
Gains on derivative instruments realized in net income	(1,440)		368		(1,072)
Net cash flow hedge activity	1,084		(277)		807
Amortization of defined benefit pension plan net periodic pension cost components	44		(11)		33
Total other comprehensive income	3,547		(990)		2,557
Comprehensive income	$	84,382	$	(19,194)	$	65,188
2023
Net income	$	80,091	$	(17,791)	$	62,300
Other comprehensive income:
Unrealized gains on available-for-sale securities:
Unrealized holding gains	43,279		(10,284)		32,995
Reclassification adjustment for losses included in net income	1,644		(374)		1,270
Net unrealized gains	44,923		(10,658)		34,265
Amortization of unrealized losses on held-to-maturity securities transferred from available-for-sale	2,968		(720)		2,248
Derivative instruments designated as cash flow hedges:
Unrealized holding losses on derivatives	(1,202)		307		(895)
Gains on derivative instruments realized in net income	(822)		210		(612)
Net cash flow hedge activity	(2,024)		517		(1,507)
Amortization of defined benefit pension plan net periodic pension cost components	61		(16)		45
Total other comprehensive income	45,928		(10,877)		35,051
Comprehensive income	$	126,019	$	(28,668)	$	97,351

See accompanying notes to consolidated financial statements (unaudited).

7

UNITED COMMUNITY BANKS, INC.

Consolidated Statement of Changes in Shareholders’ Equity (Unaudited)

For the Three Months Ended March 31,

(in thousands, except share data)	Shares of Common Stock	Preferred Stock		Common Stock		Common Stock Issuable		Capital Surplus		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Total
December 31, 2023	119,010,319	$	88,266	$	119,010	$	13,110	$	2,699,112	$	581,219	$	(239,192)	$	3,261,525
Net income										62,631				62,631
Other comprehensive income												2,557		2,557
Preferred stock dividends										(1,573)				(1,573)
Common stock dividends ($0.23 per share)										(27,665)				(27,665)
Impact of equity-based compensation awards	80,147			80		76		2,956						3,112
Impact of other United sponsored equity plans	46,052			47		(1,263)		739						(477)
March 31, 2024	119,136,518	$	88,266	$	119,137	$	11,923	$	2,702,807	$	614,612	$	(236,635)	$	3,300,110
December 31, 2022	106,222,758	$	96,422	$	106,223	$	12,307	$	2,306,366	$	508,844	$	(329,488)	$	2,700,674
Net income										62,300				62,300
Other comprehensive income												35,051		35,051
Impact of acquisitions	8,770,531			8,771				297,690						306,461
Preferred stock dividends										(1,719)				(1,719)
Common stock dividends ($0.23 per share)										(26,819)				(26,819)
Impact of equity-based compensation awards	121,888			122		498		1,900						2,520
Impact of other United sponsored equity plans	36,389			36		(828)		447						(345)
March 31, 2023	115,151,566	$	96,422	$	115,152	$	11,977	$	2,606,403	$	542,606	$	(294,437)	$	3,078,123

See accompanying notes to consolidated financial statements (unaudited).

8

UNITED COMMUNITY BANKS, INC.

Consolidated Statements of Cash Flows (Unaudited)

	Three Months Ended March 31,
(in thousands)	2024		2023
Operating activities:
Net income	$	62,631	$	62,300
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion, net	10,880		12,126
Provision for credit losses	12,899		21,783
Stock based compensation	2,403		2,482
Deferred income tax expense	4,059		8,103
Securities losses, net	—		1,644
Gains from sales of other loans	(1,537)		(1,916)
Changes in assets and liabilities:
Other assets	(12,359)		10,303
Accrued expenses and other liabilities	14,965		(22,029)
Loans held for sale	(5,132)		(4,703)
Net cash provided by operating activities	88,809		90,093
Investing activities:
Debt securities held-to-maturity:
Proceeds from maturities and calls	27,051		31,550
Debt securities available-for-sale:
Proceeds from sales	647		380,661
Proceeds from maturities and calls	229,902		83,794
Purchases	(302,962)		(25,862)
Net increase in loans	(67,629)		(345,316)
Payments for other investments	(4,353)		(74,323)
Proceeds from other investments	380		93,687
Proceeds from sales of premises and equipment	16		2,169
Purchases of premises and equipment	(13,710)		(22,602)
Net cash received in acquisition	—		57,101
Other investing inflows	8,145		436
Net cash (used in) provided by investing activities	(122,513)		181,295
Financing activities:
Net increase in deposits	21,024		793,162
Net decrease in short-term borrowings	—		(292,732)
Proceeds from FHLB advances	100		1,580,000
Repayment of FHLB advances	(100)		(2,195,000)
Cash dividends on common stock	(27,733)		(23,674)
Cash dividends on preferred stock	(1,573)		(1,719)
Other financing inflows	1,211		1,058
Other financing outflows	(1,167)		(1,655)
Net cash used in financing activities	(8,238)		(140,560)
Net change in cash and cash equivalents	(41,942)		130,828
Cash and cash equivalents, beginning of period	1,003,875		646,853
Cash and cash equivalents, end of period	$	961,933	$	777,681

See accompanying notes to consolidated financial statements (unaudited). 

9

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Note 1 – Basis of Presentation

Basis of Presentation 

United’s accounting and financial reporting policies conform to GAAP and reporting guidelines of banking regulatory authorities. The accompanying interim consolidated financial statements have not been audited. All material intercompany balances and transactions have been eliminated. A more detailed description of United’s accounting policies is included in its 2023 10-K.

In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in United’s 2023 10-K.

Note 2 – Accounting Standards Updates and Recently Adopted Standards

Recently Adopted Standards

In March 2023, the FASB issued ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. The update broadens the application of PAM and related disclosures to tax equity investments other than LIHTC, providing certain conditions are met. The election to apply PAM must be made on a tax-credit-program by tax-credit-program basis rather than at the reporting entity level or to individual investments. United adopted this update using a modified retrospective transition method as of January 1, 2024, with no impact to shareholders’ equity; thus, no cumulative effect adjustment to retained earnings was recorded.

Note 3 – Supplemental Cash Flow Information

The supplemental schedule of significant non-cash investing and financing activities for the three months ended March 31, 2024 and 2023 is as follows.

	Three Months Ended March 31,
(in thousands)	2024		2023
Significant non-cash investing and financing transactions:
Commitments to fund equity investments	$	10,693	$	20,000
Acquisitions:
Assets acquired	—		1,903,930
Liabilities assumed	—		1,597,022
Net assets acquired	—		306,908
Common stock issued and options converted	—		306,461

Note 4 – Acquisitions

Acquisition of First Miami

On July 1, 2023, United acquired all of the outstanding common stock of First Miami in a stock transaction. Information related to the fair value of assets and liabilities acquired is included in United’s 2023 10-K. During the first quarter of 2024, within the one-year measurement period related to the acquisition of First Miami, United received additional information regarding the lack of realizability of certain tax credits. As a result, the provisional fair value assigned to acquired other assets was adjusted to $18.8 million, other liabilities was adjusted to $16.9 million and goodwill was adjusted to $24.5 million, which represents a decrease of $2.06 million, a decrease of $726,000 and an increase of $1.34 million, respectively.

Pro forma information - Progress

The following table discloses certain pro forma information as if Progress had been acquired on January 1, 2022. These results combine the historical results of the acquired entity with United’s consolidated statement of income. Adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity; however pro forma financial results presented are not necessarily indicative of what would have occurred had the acquisitions taken place in earlier years.

10

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Merger-related costs related to the Progress acquisition of $7.49 million have been excluded from the three months ended March 31, 2023 pro forma information presented below. The actual results and pro forma information were as follows:

	Three Months Ended March 31, 2023
(in thousands)	Revenue		Net Income
Actual Progress results included in statement of income since acquisition date	$	6,652	$	1,810
Supplemental consolidated pro forma as if Progress had been acquired January 1, 2022	229,541		75,209

Note 5 – Investment Securities

The amortized cost basis, unrealized gains and losses and fair value of HTM debt securities as of the dates indicated are as follows.

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
As of March 31, 2024
U.S. Treasuries	$	19,872	$	—	$	2,093	$	17,779
U.S. Government agencies & GSEs	99,052		—		16,673		82,379
State and political subdivisions	292,236		23		52,802		239,457
Residential MBS, Agency & GSEs	1,360,395		9		223,439		1,136,965
Commercial MBS, Agency & GSEs	678,578		—		124,464		554,114
Supranational entities	15,000		—		2,782		12,218
Total	$	2,465,133	$	32	$	422,253	$	2,042,912
As of December 31, 2023
U.S. Treasuries	$	19,864	$	—	$	1,914	$	17,950
U.S. Government agencies & GSEs	99,052		—		15,689		83,363
State and political subdivisions	292,705		171		50,437		242,439
Residential MBS, Agency & GSEs	1,383,294		24		206,344		1,176,974
Commercial MBS, Agency & GSEs	680,933		—		118,539		562,394
Supranational entities	$	15,000	$	—	$	2,500	$	12,500
Total	$	2,490,848	$	195	$	395,423	$	2,095,620

11

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The amortized cost basis, unrealized gains and losses, and fair value of AFS debt securities as of the dates indicated are presented below.

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
As of March 31, 2024
U.S. Treasuries	$	411,640	$	5	$	12,865	$	398,780
U.S. Government agencies & GSEs	312,408		259		15,241		297,426
State and political subdivisions	181,829		—		18,566		163,263
Residential MBS, Agency & GSEs	1,337,504		250		132,233		1,205,521
Residential MBS, Non-agency	333,045		—		20,673		312,372
Commercial MBS, Agency & GSEs	693,011		100		39,653		653,458
Commercial MBS, Non-agency	20,165		—		542		19,623
Corporate bonds	213,371		130		17,601		195,900
Asset-backed securities	148,738		96		1,778		147,056
Total	$	3,651,711	$	840	$	259,152	$	3,393,399
As of December 31, 2023
U.S. Treasuries	$	398,021	$	39	$	10,711	$	387,349
U.S. Government agencies & GSEs	281,708		269		14,477		267,500
State and political subdivisions	182,546		5		18,502		164,049
Residential MBS, Agency & GSEs	1,315,064		300		125,012		1,190,352
Residential MBS, Non-agency	339,330		—		22,084		317,246
Commercial MBS, Agency & GSEs	656,004		1,073		39,017		618,060
Commercial MBS, Non-agency	24,269		—		675		23,594
Corporate bonds	218,285		64		17,127		201,222
Asset-backed securities	164,728		—		3,016		161,712
Total	$	3,579,955	$	1,750	$	250,621	$	3,331,084

Securities with a carrying value of $2.90 billion and $4.12 billion, respectively, were pledged, primarily to secure public deposits at March 31, 2024 and to secure public deposits and provide contingent liquidity through the Bank Term Funding Program at the Federal Reserve Bank, at December 31, 2023. The Bank Term Funding Program was discontinued in the first quarter of 2024.

The following table summarizes HTM debt securities in an unrealized loss position as of the dates indicated.

	Less than 12 Months				12 Months or More				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
As of March 31, 2024
U.S. Treasuries	$	—	$	—	$	17,779	$	2,093	$	17,779	$	2,093
U.S. Government agencies & GSEs	—		—		82,379		16,673		82,379		16,673
State and political subdivisions	13,297		88		217,862		52,714		231,159		52,802
Residential MBS, Agency & GSEs	355		3		1,135,361		223,436		1,135,716		223,439
Commercial MBS, Agency & GSEs	—		—		554,114		124,464		554,114		124,464
Supranational entities	—		—		12,218		2,782		12,218		2,782
Total unrealized loss position	$	13,652	$	91	$	2,019,713	$	422,162	$	2,033,365	$	422,253
As of December 31, 2023
U.S. Treasuries	$	—	$	—	$	17,951	$	1,914	$	17,951	$	1,914
U.S. Government agencies & GSEs	—		—		83,363		15,689		83,363		15,689
State and political subdivisions	2,986		13		217,547		50,424		220,533		50,437
Residential MBS, Agency & GSEs	311		2		1,175,263		206,342		1,175,574		206,344
Commercial MBS, Agency & GSEs	6,533		115		555,861		118,424		562,394		118,539
Supranational entities	—		—		12,500		2,500		12,500		2,500
Total unrealized loss position	$	9,830	$	130	$	2,062,485	$	395,293	$	2,072,315	$	395,423

12

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The following table summarizes AFS debt securities in an unrealized loss position as of the dates indicated.

	Less than 12 Months				12 Months or More				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
As of March 31, 2024
U.S. Treasuries	$	270,743	$	1,566	$	102,963	$	11,299	$	373,706	$	12,865
U.S. Government agencies & GSEs	40,825		216		177,406		15,025		218,231		15,241
State and political subdivisions	—		—		162,495		18,566		162,495		18,566
Residential MBS, Agency & GSEs	81,990		331		1,086,333		131,902		1,168,323		132,233
Residential MBS, Non-agency	—		—		312,372		20,673		312,372		20,673
Commercial MBS, Agency & GSEs	170,175		724		379,980		38,929		550,155		39,653
Commercial MBS, Non-agency	—		—		19,623		542		19,623		542
Corporate bonds	3,201		49		190,753		17,552		193,954		17,601
Asset-backed securities	3,214		3		118,321		1,775		121,535		1,778
Total unrealized loss position	$	570,148	$	2,889	$	2,550,246	$	256,263	$	3,120,394	$	259,152
As of December 31, 2023
U.S. Treasuries	$	100,369	$	39	$	103,535	$	10,672	$	203,904	$	10,711
U.S. Government agencies & GSEs	41,960		141		184,184		14,336		226,144		14,477
State and political subdivisions	—		—		163,278		18,502		163,278		18,502
Residential MBS, Agency & GSEs	50,014		672		1,108,290		124,340		1,158,304		125,012
Residential MBS, Non-agency	—		—		317,247		22,084		317,247		22,084
Commercial MBS, Agency & GSEs	98,052		2,494		342,390		36,523		440,442		39,017
Commercial MBS, Non-agency	—		—		23,594		675		23,594		675
Corporate bonds	4,016		116		195,329		17,011		199,345		17,127
Asset-backed securities	11,855		53		149,857		2,963		161,712		3,016
Total unrealized loss position	$	306,266	$	3,515	$	2,587,704	$	247,106	$	2,893,970	$	250,621

At March 31, 2024, there were 639 AFS debt securities and 315 HTM debt securities that were in an unrealized loss position. United does not intend to sell nor does it believe it will be required to sell securities in an unrealized loss position prior to the recovery of their amortized cost basis. Unrealized losses at March 31, 2024 were primarily attributable to changes in interest rates.

At March 31, 2024 and December 31, 2023, estimated credit losses and, thus, the related ACL on HTM debt securities were de minimis due to the high credit quality of the portfolio, which included securities issued or guaranteed by U.S. Government agencies, GSEs, high credit quality municipalities and supranational entities. As a result, no ACL was recorded on the HTM portfolio at March 31, 2024 or December 31, 2023. In addition, based on the assessments performed at March 31, 2024 and December 31, 2023, there was no ACL required related to the AFS portfolio.

The following table presents accrued interest receivable on HTM and AFS debt securities, which was excluded from the estimate of credit losses, for the periods indicated.

	Accrued Interest Receivable
(in thousands)	March 31, 2024		December 31, 2023
HTM	$	5,942	$	6,143
AFS	15,050		12,568

13

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The amortized cost and fair value of AFS and HTM debt securities at March 31, 2024, by contractual maturity, are presented in the following table.

	AFS				HTM
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within 1 year:
U.S. Treasuries	$	122,246	$	122,094	$	—	$	—
U.S. Government agencies & GSEs	371		357		—		—
State and political subdivisions	3,147		3,114		1,200		1,194
Corporate bonds	16,878		16,413		—		—
	142,642		141,978		1,200		1,194
1 to 5 years:
U.S. Treasuries	289,394		276,686		19,872		17,779
U.S. Government agencies & GSEs	46,818		43,034		—		—
State and political subdivisions	27,823		25,762		27,197		25,579
Corporate bonds	152,155		140,542		—		—
	516,190		486,024		47,069		43,358
5 to 10 years:
U.S. Government agencies & GSEs	129,138		122,597		72,635		61,301
State and political subdivisions	59,827		51,150		55,664		47,296
Corporate bonds	43,528		38,029		—		—
Supranational entities	—		—		15,000		12,218
	232,493		211,776		143,299		120,815
More than 10 years:
U.S. Government agencies & GSEs	136,081		131,438		26,417		21,078
State and political subdivisions	91,032		83,237		208,175		165,388
Corporate bonds	810		916		—		—
	227,923		215,591		234,592		186,466
Debt securities not due at a single maturity date:
Asset-backed securities	148,738		147,056		—		—
Residential MBS	1,670,549		1,517,893		1,360,395		1,136,965
Commercial MBS	713,176		673,081		678,578		554,114
	2,532,463		2,338,030		2,038,973		1,691,079
Total	$	3,651,711	$	3,393,399	$	2,465,133	$	2,042,912

Expected maturities may differ from contractual maturities because issuers and borrowers may have the right to call or prepay obligations. 

Realized gains and losses are derived using the specific identification method for determining the cost of securities sold. The following table summarizes AFS securities sales activity for the three months ended March 31, 2024 and 2023.

	Three Months Ended March 31,
(in thousands)	2024		2023
Proceeds from sales	$	647	$	380,661
Gross realized gains	$	—	$	1,373
Gross realized losses	—		(3,017)
Securities losses, net	$	—	$	(1,644)
Income tax benefit attributable to sales	$	—	$	(374)

14

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Note 6 – Loans and Leases and Allowance for Credit Losses

Major classifications of the loan and lease portfolio (collectively referred to as the “loan portfolio” or “loans”) are summarized as of the dates indicated as follows.

(in thousands)	March 31, 2024		December 31, 2023
Owner occupied CRE	$	3,310,231	$	3,264,051
Income producing CRE	4,206,322		4,263,952
Commercial & industrial	2,404,505		2,411,045
Commercial construction	1,936,074		1,859,538
Equipment financing	1,543,905		1,541,120
Total commercial	13,401,037		13,339,706
Residential mortgage	3,239,687		3,198,928
Home equity	969,020		958,987
Residential construction	257,279		301,650
Manufactured housing	328,121		336,474
Consumer	180,102		181,117
Total loans excluding fair value hedge basis adjustment	18,375,246		18,316,862
Fair value hedge basis adjustment	(402)		1,893
Total loans	18,374,844		18,318,755
Less ACL - loans	(210,934)		(208,071)
Loans, net	$	18,163,910	$	18,110,684

Accrued interest receivable related to loans totaled $67.0 million at both March 31, 2024 and December 31, 2023, and was reported in other assets on the consolidated balance sheets. Accrued interest receivable was excluded from the estimate of credit losses.

At March 31, 2024 and December 31, 2023, the loan portfolio included certain loans specifically pledged to the Federal Reserve as well as loans covered by a blanket lien on qualifying loan types with the FHLB to secure contingent funding sources.

The following table presents the amortized cost of certain loans held for investment that were sold in the periods indicated. The gains on these loan sales were included in noninterest income on the consolidated statements of income.

	Three Months Ended March 31,
(in thousands)	2024		2023
Guaranteed portion of SBA/USDA loans	$	9,388	$	21,770
Equipment financing receivables	28,323		18,703
Total	$	37,711	$	40,473

At March 31, 2024 and December 31, 2023, equipment financing receivables included leases of $74.8 million and $68.9 million, respectively. The components of the net investment in leases, which included both sales-type and direct financing, are presented below.

(in thousands)	March 31, 2024		December 31, 2023
Minimum future lease payments receivable	$	81,882	$	75,198
Estimated residual value of leased equipment	4,737		4,445
Initial direct costs	1,566		1,402
Security deposits	(437)		(413)
Unearned income	(12,978)		(11,711)
Net investment in leases	$	74,770	$	68,921

15

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Minimum future lease payments expected to be received from equipment financing lease contracts as of March 31, 2024 were as follows: 

(in thousands)
Year
Remainder of 2024	$	20,668
2025	23,996
2026	18,243
2027	12,703
2028	5,675
Thereafter	597
Total	$	81,882

Nonaccrual and Past Due Loans

The following table presents the aging of the amortized cost basis in loans by aging category and accrual status as of the dates indicated. Past due status is based on contractual terms of the loan. The accrual of interest is generally discontinued when a loan becomes 90 days past due.

	Accruing
	Current Loans		Loans Past Due
(in thousands)			30 - 59 Days		60 - 89 Days		> 90 Days		Nonaccrual Loans		Total Loans
As of March 31, 2024
Owner occupied CRE	$	3,300,380	$	7,136	$	405	$	—	$	2,310	$	3,310,231
Income producing CRE	4,176,324		812		—		—		29,186		4,206,322
Commercial & industrial	2,371,045		10,707		2,619		—		20,134		2,404,505
Commercial construction	1,932,826		1,311		75		—		1,862		1,936,074
Equipment financing	1,525,225		7,746		2,105		—		8,829		1,543,905
Total commercial	13,305,800		27,712		5,204		—		62,321		13,401,037
Residential mortgage	3,217,293		5,182		643		—		16,569		3,239,687
Home equity	960,734		2,638		664		—		4,984		969,020
Residential construction	255,899		51		85		—		1,244		257,279
Manufactured housing	298,850		7,869		1,605		—		19,797		328,121
Consumer	179,582		428		38		—		54		180,102
Total loans	$	18,218,158	$	43,880	$	8,239	$	—	$	104,969	$	18,375,246
As of December 31, 2023
Owner occupied CRE	$	3,258,015	$	2,942	$	—	$	—	$	3,094	$	3,264,051
Income producing CRE	4,230,140		3,684		—		—		30,128		4,263,952
Commercial & industrial	2,388,076		8,129		1,373		—		13,467		2,411,045
Commercial construction	1,857,660		—		—		—		1,878		1,859,538
Equipment financing	1,522,962		5,895		3,758		—		8,505		1,541,120
Total commercial	13,256,853		20,650		5,131		—		57,072		13,339,706
Residential mortgage	3,179,329		4,622		1,033		—		13,944		3,198,928
Home equity	950,841		4,106		268		—		3,772		958,987
Residential construction	299,230		1,255		221		—		944		301,650
Manufactured housing	304,794		12,622		3,197		—		15,861		336,474
Consumer	180,245		686		92		—		94		181,117
Total loans	$	18,171,292	$	43,941	$	9,942	$	—	$	91,687	$	18,316,862

16

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

At March 31, 2024 and December 31, 2023, United had $55.5 million and $48.5 million, respectively, in loans for which repayment is expected to be provided substantially through the operation or sale of the collateral. Estimated credit losses for these loans are based on the net realizable value of the collateral relative to the amortized cost of the loan. The majority of these loans are income producing CRE and commercial and industrial loans.

The following table presents nonaccrual loans held for investment by loan class for the periods indicated. 

	Nonaccrual Loans
	March 31, 2024						December 31, 2023
(in thousands)	With no allowance		With an allowance		Total		With no allowance		With an allowance		Total
Owner occupied CRE	$	1,072	$	1,238	$	2,310	$	2,451	$	643	$	3,094
Income producing CRE	29,153		33		29,186		11,003		19,125		30,128
Commercial & industrial	14,038		6,096		20,134		11,940		1,527		13,467
Commercial construction	1,778		84		1,862		1,784		94		1,878
Equipment financing	92		8,737		8,829		57		8,448		8,505
Total commercial	46,133		16,188		62,321		27,235		29,837		57,072
Residential mortgage	3,368		13,201		16,569		1,836		12,108		13,944
Home equity	1,426		3,558		4,984		1,276		2,496		3,772
Residential construction	781		463		1,244		398		546		944
Manufactured housing	—		19,797		19,797		—		15,861		15,861
Consumer	—		54		54		2		92		94
Total	$	51,708	$	53,261	$	104,969	$	30,747	$	60,940	$	91,687

Risk Ratings 

United categorizes commercial loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, public information, and current industry and economic trends, among other factors. United analyzes loans individually by classifying the loans as to credit risk. This analysis is performed on a continual basis. United uses the following definitions for its risk ratings:

Pass. Loans in this category are considered to have a low probability of default and do not meet the criteria of the risk categories below.

Special Mention. Loans in this category are presently protected from apparent loss; however, weaknesses exist that could cause future impairment, including the deterioration of financial ratios, past due status and questionable management capabilities. These loans require more than the ordinary amount of supervision. Collateral values generally afford adequate coverage, but may not be immediately marketable.

Substandard. These loans are inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged. Specific and well-defined weaknesses exist that may include poor liquidity and deterioration of financial ratios. The loan may be past due and related deposit accounts experiencing overdrafts. There is the distinct possibility that United will sustain some loss if deficiencies are not corrected. If possible, immediate corrective action is taken.

Doubtful. Specific weaknesses characterized as Substandard that are severe enough to make collection in full highly questionable and improbable. There is no reliable secondary source of full repayment.

Loss. Loans categorized as Loss have the same characteristics as Doubtful; however, probability of loss is certain. Loans classified as Loss are charged off.

Consumer Purpose Loans. United applies a pass / fail grading system to all consumer purpose loans. Under this system, loans that are on nonaccrual status, become past due 90 days, or are in bankruptcy and 30 or more days past due are classified as “fail” and all other loans are classified as “pass”. For reporting purposes, loans in these categories that are classified as “fail” are reported as substandard and all other loans are reported as pass.

17

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The following tables present the risk category of term loans and gross charge-offs by vintage year, which is the year of origination or most recent renewal, as of the date indicated (in thousands).

(in thousands)	Term Loans by Origination Year												Revolvers		Revolvers converted to term loans		Total
As of March 31, 2024	2024		2023		2022		2021		2020		Prior
Owner occupied CRE
Pass	$	121,015	$	643,801	$	665,648	$	594,768	$	546,727	$	501,390	$	113,065	$	17,263	$	3,203,677
Special Mention	831		1,837		14,475		13,905		9,131		11,771		—		2,774		54,724
Substandard	1,398		7,750		9,010		15,079		4,137		13,025		1,431		—		51,830
Total owner occupied CRE	$	123,244	$	653,388	$	689,133	$	623,752	$	559,995	$	526,186	$	114,496	$	20,037	$	3,310,231
Current period gross charge-offs	$	—	$	192	$	17	$	—	$	—	$	219	$	—	$	—	$	428
Income producing CRE
Pass	$	157,636	$	570,861	$	929,507	$	835,019	$	681,583	$	668,180	$	51,731	$	12,087	$	3,906,604
Special Mention	27,581		51,055		26,868		21,336		28,963		12,362		49		—		168,214
Substandard	38,515		48,474		9,076		2,460		5,439		27,487		—		53		131,504
Total income producing CRE	$	223,732	$	670,390	$	965,451	$	858,815	$	715,985	$	708,029	$	51,780	$	12,140	$	4,206,322
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	229	$	—	$	—	$	229
Commercial & industrial
Pass	$	97,538	$	559,393	$	398,107	$	275,540	$	122,578	$	197,346	$	578,784	$	11,182	$	2,240,468
Special Mention	10,752		2,434		3,821		6,862		8,432		8,090		34,656		313		75,360
Substandard	685		25,705		3,818		15,705		4,935		4,715		31,806		1,308		88,677
Total commercial & industrial	$	108,975	$	587,532	$	405,746	$	298,107	$	135,945	$	210,151	$	645,246	$	12,803	$	2,404,505
Current period gross charge-offs	$	—	$	3,105	$	409	$	107	$	111	$	532	$	—	$	522	$	4,786
Commercial construction
Pass	$	160,727	$	627,053	$	667,547	$	263,091	$	62,508	$	74,320	$	65,090	$	936	$	1,921,272
Special Mention	4,849		204		118		4		—		—		—		—		5,175
Substandard	1,578		6,030		1,064		30		720		205		—		—		9,627
Total commercial construction	$	167,154	$	633,287	$	668,729	$	263,125	$	63,228	$	74,525	$	65,090	$	936	$	1,936,074
Current period gross charge-offs	$	—	$	—	$	53	$	—	$	—	$	—	$	—	$	—	$	53
Equipment financing
Pass	$	192,828	$	578,878	$	452,224	$	201,010	$	68,999	$	34,265	$	—	$	—	$	1,528,204
Special Mention	—		—		815		2,311		900		674		—		—		4,700
Substandard	—		1,954		4,439		3,189		592		827		—		—		11,001
Total equipment financing	$	192,828	$	580,832	$	457,478	$	206,510	$	70,491	$	35,766	$	—	$	—	$	1,543,905
Current period gross charge-offs	$	—	$	1,219	$	3,457	$	2,199	$	383	$	31	$	—	$	—	$	7,289
Residential mortgage
Pass	$	102,601	$	823,173	$	941,593	$	721,699	$	311,808	$	315,388	$	6	$	3,262	$	3,219,530
Substandard	1,311		2,772		3,431		2,104		1,982		8,276		—		281		20,157
Total residential mortgage	$	103,912	$	825,945	$	945,024	$	723,803	$	313,790	$	323,664	$	6	$	3,543	$	3,239,687
Current period gross charge-offs	$	—	$	—	$	13	$	—	$	—	$	3	$	—	$	—	$	16
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	935,162	$	28,461	$	963,623
Substandard	—		—		—		—		—		—		—		5,397		5,397
Total home equity	$	—	$	—	$	—	$	—	$	—	$	—	$	935,162	$	33,858	$	969,020
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	7	$	7
Residential construction
Pass	$	15,109	$	176,092	$	44,524	$	9,044	$	4,941	$	6,127	$	—	$	92	$	255,929
Substandard	215		963		30		—		7		135		—		—		1,350
Total residential construction	$	15,324	$	177,055	$	44,554	$	9,044	$	4,948	$	6,262	$	—	$	92	$	257,279
Current period gross charge-offs	$	—	$	85	$	—	$	48	$	—	$	—	$	—	$	—	$	133
Manufactured housing
Pass	$	—	$	43,191	$	67,155	$	47,387	$	42,030	$	106,805	$	—	$	—	$	306,568
Substandard	128		2,018		5,055		3,903		3,816		6,633		—		—		21,553
Total consumer	$	128	$	45,209	$	72,210	$	51,290	$	45,846	$	113,438	$	—	$	—	$	328,121
Current period gross charge-offs	$	—	$	234	$	615	$	304	$	149	$	305	$	—	$	—	$	1,607
Consumer
Pass	$	27,459	$	71,656	$	33,669	$	13,687	$	9,517	$	1,309	$	22,067	$	462	$	179,826
Substandard	127		25		54		48		13		9		—		—		276
Total consumer	$	27,586	$	71,681	$	33,723	$	13,735	$	9,530	$	1,318	$	22,067	$	462	$	180,102
Current period gross charge-offs	$	648	$	55	$	86	$	18	$	5	$	—	$	—	$	49	$	861

18

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

(in thousands)	Term Loans												Revolvers		Revolvers converted to term loans		Total
As of December 31, 2023	2023		2022		2021		2020		2019		Prior
Owner occupied CRE
Pass	$	643,752	$	681,834	$	615,571	$	553,047	$	202,068	$	337,495	$	117,212	$	18,671	$	3,169,650
Special Mention	2,409		7,877		7,070		4,815		9,221		2,245		100		254		33,991
Substandard	11,128		8,929		15,405		7,104		5,395		8,340		1,421		2,688		60,410
Total owner occupied CRE	$	657,289	$	698,640	$	638,046	$	564,966	$	216,684	$	348,080	$	118,733	$	21,613	$	3,264,051
Current period gross charge-offs	$	207	$	48	$	—	$	819	$	—	$	—	$	—	$	—	$	1,074
Income producing CRE
Pass	$	661,093	$	931,559	$	851,529	$	750,415	$	302,845	$	419,111	$	50,659	$	13,247	$	3,980,458
Special Mention	48,358		26,751		18,989		25,964		6,387		6,173		—		—		132,622
Substandard	68,032		9,998		2,523		21,037		28,877		20,351		—		54		150,872
Total income producing CRE	$	777,483	$	968,308	$	873,041	$	797,416	$	338,109	$	445,635	$	50,659	$	13,301	$	4,263,952
Current period gross charge-offs	$	3,033	$	2,534	$	—	$	—	$	—	$	2,291	$	—	$	—	$	7,858
Commercial & industrial
Pass	$	610,288	$	425,626	$	299,170	$	130,586	$	82,710	$	130,190	$	581,871	$	13,332	$	2,273,773
Special Mention	6,459		2,068		472		5,430		5,473		718		14,861		274		35,755
Substandard	10,906		5,713		22,635		8,557		4,499		1,610		46,282		1,315		101,517
Total commercial & industrial	$	627,653	$	433,407	$	322,277	$	144,573	$	92,682	$	132,518	$	643,014	$	14,921	$	2,411,045
Current period gross charge-offs	$	5,999	$	1,627	$	13,153	$	2,377	$	400	$	157	$	—	$	1,825	$	25,538
Commercial construction
Pass	$	665,792	$	638,761	$	293,276	$	95,046	$	59,471	$	24,698	$	62,370	$	966	$	1,840,380
Special Mention	28		124		6		—		—		—		—		—		158
Substandard	16,253		1,784		31		723		127		82		—		—		19,000
Total commercial construction	$	682,073	$	640,669	$	293,313	$	95,769	$	59,598	$	24,780	$	62,370	$	966	$	1,859,538
Current period gross charge-offs	$	—	$	60	$	—	$	—	$	—	$	—	$	—	$	—	$	60
Equipment financing
Pass	$	673,201	$	496,336	$	233,422	$	83,507	$	41,053	$	3,722	$	—	$	—	$	1,531,241
Substandard	1,471		4,141		2,487		960		817		3		—		—		9,879
Total equipment financing	$	674,672	$	500,477	$	235,909	$	84,467	$	41,870	$	3,725	$	—	$	—	$	1,541,120
Current period gross charge-offs	$	474	$	10,902	$	9,764	$	1,960	$	786	$	320	$	—	$	—	$	24,206
Residential mortgage
Pass	$	839,825	$	955,592	$	734,078	$	318,886	$	84,736	$	245,648	$	6	$	3,415	$	3,182,186
Substandard	2,001		3,078		2,715		1,074		1,331		6,295		—		248		16,742
Total residential mortgage	$	841,826	$	958,670	$	736,793	$	319,960	$	86,067	$	251,943	$	6	$	3,663	$	3,198,928
Current period gross charge-offs	$	—	$	51	$	—	$	—	$	—	$	38	$	—	$	—	$	89
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	926,596	$	28,412	$	955,008
Substandard	—		—		—		—		—		—		—		3,979		3,979
Total home equity	$	—	$	—	$	—	$	—	$	—	$	—	$	926,596	$	32,391	$	958,987
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	167	$	167
Residential construction
Pass	$	208,798	$	70,011	$	9,827	$	5,201	$	1,046	$	5,614	$	—	$	93	$	300,590
Substandard	878		31		—		6		38		107		—		—		1,060
Total residential construction	$	209,676	$	70,042	$	9,827	$	5,207	$	1,084	$	5,721	$	—	$	93	$	301,650
Current period gross charge-offs	$	—	$	1,111	$	—	$	—	$	—	$	—	$	—	$	—	$	1,111
Manufactured housing
Pass	$	45,065	$	69,424	$	48,814	$	43,735	$	31,321	$	80,284	$	—	$	—	$	318,643
Substandard	1,078		4,665		3,601		3,020		1,291		4,176		—		—		17,831
Total consumer	$	46,143	$	74,089	$	52,415	$	46,755	$	32,612	$	84,460	$	—	$	—	$	336,474
Current period gross charge-offs	$	38	$	1,503	$	985	$	419	$	279	$	690	$	—	$	—	$	3,914
Consumer
Pass	$	86,142	$	39,593	$	16,191	$	10,350	$	1,212	$	623	$	26,239	$	534	$	180,884
Substandard	50		55		53		25		5		13		32		—		233
Total consumer	$	86,192	$	39,648	$	16,244	$	10,375	$	1,217	$	636	$	26,271	$	534	$	181,117
Current period gross charge-offs	$	3,245	$	241	$	233	$	38	$	15	$	1	$	5	$	204	$	3,982

19

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Modifications to Borrowers Experiencing Financial Difficulty

The period-end amortized cost and additional information regarding the modified terms of loans modified under the terms of a FDM during the three months ended March 31, 2024 and 2023 are presented in the following tables.

Three Months Ended March 31, 2024
	New FDMs				Defaults within 12 months of modification
(in thousands)	Amortized Cost		% of Total Class of Receivable
Owner occupied CRE	$	1,950	0.1	%	$	—
Income producing CRE	28,540		0.7		—
Commercial & industrial	6,575		0.3		—
Equipment financing	1,393		0.1		228
Residential mortgage	1,228		—		—
Residential construction	100		—		—
Manufactured housing	128		—		—
Consumer	125		0.1		—
Total	$	40,039	0.2		$	228

Three Months Ended March 31, 2024
New FDMs
(dollars in thousands)			Weighted Average Modification
Extension
Owner occupied CRE	$	243	1 year
Commercial & industrial	6,117		7 months
Residential mortgage	27		1 year
Consumer	125		5 months
Total	6,512
Payment Delay
Owner occupied CRE (1)	266		N/A
Income producing CRE	28,540		1 year
Commercial & industrial (1)	179		6 months
Residential construction	100		6 months
Total	29,085
Payment Delay and Extension
Commercial & industrial	279		Payment delay: 4 months; Extension: 3 years
Equipment financing	1,393		Extension and payment delay: 7 months
Total	1,672
Rate Reduction and Extension
Residential mortgage	1,201		Rate reduction: 444 basis points; Extension: 2 years
Manufactured housing	128		Rate reduction: 624 basis points; Extension: 6 years
Total	1,329
Rate Reduction and Payment Delay
Owner occupied CRE	1,441		Rate reduction: 75 basis points; Payment delay: 6 months
Total	$	40,039

(1) Payment delay FDMs in bankruptcy status are excluded from the weighted average payment delay calculation.

20

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Three Months Ended March 31, 2023
	New FDMs										Defaults within 12 months of modification
	Amortized Cost by Type of Modification
(in thousands)	Extension		Payment Delay		Rate Reduction & Extension		Total		% of Total Class of Receivable
Commercial & industrial	$	—	$	6,170	$	—	$	6,170	0.3	%	$	—
Equipment financing	5,211		—		—		5,211		0.4		—
Residential mortgage	—		—		57		57		—		—
Manufactured housing	—		—		152		152		—		—
Total	$	5,211	$	6,170	$	209	$	11,590	0.1		$	—

During the three months ended March 31, 2023, equipment financing FDMs typically consist of one or more three-month extensions beyond the original maturity date.

For the three months ended March 31, 2023, commercial and industrial payment delay modifications consisted of one or more three-month periods during which principal payments were deferred but interest payments continued to be paid.

During the three months ended March 31, 2023, FDMs categorized as rate reduction and extensions in the residential mortgage and manufactured housing categories resulted in a decrease in the weighted average interest rate on these FDMs of 621 bps and extended the weighted average maturity by 6.5 years.

Allowance for Credit Losses

The ACL for loans represents management’s estimate of life of loan credit losses in the portfolio as of the end of the period. The ACL related to unfunded commitments is included in other liabilities in the consolidated balance sheet.

At both March 31, 2024 and December 31, 2023, United used a one-year reasonable and supportable forecast period. Expected credit losses were estimated using a regression model for each segment based on historical data from peer banks combined with a third party vendor’s baseline economic forecast to predict the change in credit losses. These estimates were then combined with a starting value that was based on United’s recent charge-off experience to produce an expected default rate, with the results subject to a floor.

In the case of commercial construction, income producing CRE, owner occupied CRE, multifamily loans (included in income producing CRE) and commercial & industrial loans, at March 31, 2024, the expected default rate was adjusted by a model overlay based on expectations of future performance.

At March 31, 2024, the third party vendor’s baseline forecast was similar to the forecast at December 31, 2023. At March 31, 2024 United applied qualitative adjustments to the model output for the residential mortgage portfolio to account for the ongoing performance stability of the portfolio. United also applied qualitative adjustments to the equipment finance portfolio due to an elevated default rate that resulted from a higher level of recent charge-offs that was mostly coming from the long-haul trucking equipment segment, a small portion of the portfolio deemed not representative of the entire equipment financing portfolio.

For periods beyond the reasonable and supportable forecast period of one year, United reverted to historical credit loss information on a straight line basis over two years. For most collateral types, United reverted to through-the-cycle average default rates using peer data from 2000 to 2017. For loans secured by residential mortgages and manufactured housing, the peer data was adjusted for changes in lending practices designed to mitigate the magnitude of losses observed during the 2008 mortgage crisis.

21

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The following table presents the balance and activity in the ACL by portfolio segment for the periods indicated.

	Three Months Ended March 31, 2024
(in thousands)	Beginning Balance		Charge-Offs		Recoveries		Provision		Ending Balance
Owner occupied CRE	$	23,542	$	(428)	$	226	$	(3,682)	$	19,658
Income producing CRE	47,755		(229)		24		(752)		46,798
Commercial & industrial	30,890		(4,786)		880		4,874		31,858
Commercial construction	21,741		(53)		33		(1,698)		20,023
Equipment financing	33,383		(7,289)		927		12,961		39,982
Residential mortgage	28,219		(16)		32		401		28,636
Home equity	9,647		(7)		61		14		9,715
Residential construction	1,833		(133)		14		(185)		1,529
Manufactured housing	10,339		(1,607)		38		3,274		12,044
Consumer	722		(861)		266		564		691
ACL - loans	208,071		(15,409)		2,501		15,771		210,934
ACL - unfunded commitments	16,057		—		—		(2,872)		13,185
Total ACL	$	224,128	$	(15,409)	$	2,501	$	12,899	$	224,119

	Three Months Ended March 31, 2023
(in thousands)	Beginning Balance		Initial ACL - PCD loans (1)		Charge-Offs		Recoveries		Provision		Ending Balance
Owner occupied CRE	$	19,834	$	181	$	(207)	$	117	$	906	$	20,831
Income producing CRE	32,082		307		(2,781)		475		3,524		33,607
Commercial & industrial	23,504		1,358		(898)		673		3,675		28,312
Commercial construction	20,120		39		—		37		1,877		22,073
Equipment financing	23,395		—		(4,027)		652		6,175		26,195
Residential mortgage	20,809		157		(19)		106		3,029		24,082
Home equity	8,707		534		(121)		88		1,129		10,337
Residential construction	2,049		124		—		15		(145)		2,043
Manufactured housing	8,098		—		(654)		26		954		8,424
Consumer	759		4		(817)		251		433		630
ACL - loans	159,357		2,704		(9,524)		2,440		21,557		176,534
ACL - unfunded commitments	21,163		—		—		—		226		21,389
Total ACL	$	180,520	$	2,704	$	(9,524)	$	2,440	$	21,783	$	197,923

(1) Represents the initial ACL related to PCD loans acquired in the Progress transaction.

22

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Note 7 – Derivatives and Hedging Activities

The table below presents the fair value of derivative financial instruments, which are included in other assets and other liabilities on the consolidated balance sheet, as of the dates indicated:

	March 31, 2024						December 31, 2023
	Notional Amount		Fair Value				Notional Amount		Fair Value
(in thousands)			Derivative Asset		Derivative Liability				Derivative Asset		Derivative Liability
Derivatives designated as hedging instruments:
Cash flow hedge of subordinated debt	$	100,000	$	13,840	$	—	$	100,000	$	13,168	$	—
Cash flow hedges of trust preferred securities	20,000		—		—		20,000		—		—
Fair value hedges of AFS debt securities	649,520		—		—		655,511		—		—
Fair value hedges of loans	1,650,000		—		—		150,000		—		—
Total	2,419,520		13,840		—		925,511		13,168		—
Derivatives not designated as hedging instruments:
Customer derivative positions	1,173,714		1,358		77,635		1,177,275		3,461		68,384
Dealer offsets to customer derivative positions	1,173,714		25,588		1,337		1,197,364		23,061		4,597
Risk participations	89,811		1		6		90,597		1		8
Mortgage banking - loan commitments	67,260		1,630		—		48,452		1,089		—
Mortgage banking - forward sales commitment	105,251		89		180		81,671		20		658
Bifurcated embedded derivatives	51,935		10,696		—		51,935		9,552		—
Dealer offsets to bifurcated embedded derivatives	51,935		—		12,255		51,935		—		11,164
Total	2,713,620		39,362		91,413		2,699,229		37,184		84,811
Total derivatives	$	5,133,140	$	53,202	$	91,413	$	3,624,740	$	50,352	$	84,811
Total gross derivative instruments			$	53,202	$	91,413			$	50,352	$	84,811
Less: Amounts subject to master netting agreements			(1,444)		(1,444)				(4,683)		(4,683)
Less: Cash collateral received/pledged			(39,841)		(12,593)				(33,921)		(11,330)
Net amount			$	11,917	$	77,376			$	11,748	$	68,798

United clears certain derivatives centrally through the CME. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives’ exposure rather than as collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero.

Hedging Derivatives

Cash Flow Hedges of Interest Rate Risk 

As of March 31, 2024 and December 31, 2023, United utilized interest rate caps and swaps to hedge the variability of cash flows due to changes in interest rates on certain of its variable-rate subordinated debt and trust preferred securities. Gains and losses related to changes in fair value are reclassified into earnings in the periods the hedged forecasted transactions occur. Losses representing amortization of the premium recorded on cash flow hedges, which is a component excluded from the assessment of effectiveness, are recognized in earnings on a straight-line basis in the same caption as the hedged item over the term of the hedge. Over the next twelve months, United expects to reclassify $5.32 million of gains from AOCI into earnings related to these agreements.

Fair Value Hedges of Interest Rate Risk 

United uses interest rate derivatives to manage its exposure to changes in fair value attributable to changes in interest rates on certain of its fixed-rate financial instruments. For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. United includes the gain or loss on the hedged items in the same income statement line item as the offsetting loss or gain on the related derivatives. During the first quarter of 2024, United entered into additional fair value hedges on stated amounts of closed portfolios of loans using the portfolio layer method.

23

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The table below presents the effect of derivatives in hedging relationships, all of which are interest rate contracts, on net interest income for the periods indicated. 

	Affected Income Statement Line Item Increase/(Decrease) to Earnings	Three Months Ended March 31,
(in thousands)		2024		2023
Fair value hedges:
AFS securities:
Amounts related to interest settlements on derivatives		$	2,856	$	—
Gain recognized on derivative		9,462		—
Loss recognized on hedged items		(9,798)		—
Net income recognized on AFS securities fair value hedges	Interest revenue- investment securities	$	2,520	$	—
Loans:
Amounts related to interest settlements on derivatives		1,298		—
Gain recognized on derivatives		2,158		—
Loss recognized on hedged items		(2,295)		—
Net income recognized on loan fair value hedges	Interest revenue - loans, including fees	1,161		—
Cash flow hedges:
Long-term debt (1)	Interest expense- long term debt	$	1,440	$	822

 (1) Includes premium amortization expense excluded from the assessment of hedge effectiveness of $118,000 and $116,000 for the three months ended March 31, 2024 and 2023, respectively.

The table below presents the carrying amount of hedged items and cumulative fair value hedging basis adjustments for the periods presented. All fair value hedges of AFS debt securities and loans at March 31, 2024 and December 31, 2023 were designated under the portfolio layer method.

(in thousands)	March 31, 2024						December 31, 2023
Balance Sheet Location	Carrying Amount		Hedge Accounting Basis Adjustment		Hedged Portfolio Layer		Carrying Amount		Hedge Accounting Basis Adjustment		Hedged Portfolio Layer
Debt securities AFS (1)	$	783,148	$	(14,471)	$	649,520	$	789,908	$	(4,673)	$	655,511
Loans and leases held for investment	5,408,116		(402)		1,650,000		1,017,379		1,893		150,000

(1) Carrying amount for AFS debt securities reflects amortized cost, which excludes the hedge accounting basis adjustment.

Derivatives Not Designated as Hedging Instruments 

Customer derivative positions include swaps, caps, and collars between United and certain commercial loan customers with offsetting positions to dealers under a back-to-back program. In addition, United occasionally enters into credit risk participation agreements with counterparty banks to accept or transfer a portion of the credit risk related to interest rate swaps.

United also has three interest rate swap contracts that are not designated as hedging instruments but are economic hedges of market-linked brokered certificates of deposit. The market-linked brokered certificates of deposit contain embedded derivatives that are bifurcated from the host instruments and are marked to market through earnings. The fair value marks on the market-linked swaps and the bifurcated embedded derivatives tend to move in opposite directions and therefore provide an economic hedge.

In addition, United originates certain residential mortgage loans with the intention of selling these loans. Between the time United enters into an interest-rate lock commitment to originate a residential mortgage loan that is to be held for sale and the time the loan is funded and eventually sold, United is subject to the risk of variability in market prices. United enters into forward sale agreements to mitigate risk and to protect the expected gain on the eventual loan sale. The commitments to originate residential mortgage loans and forward loan sales commitments are freestanding derivative instruments. Fair value adjustments on these derivative instruments are recorded within mortgage loan gains and other related fee income in the consolidated statements of income.

24

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The table below presents the gains and losses recognized in income on derivatives not designated as hedging instruments for the periods indicated. 

	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
			Three Months Ended March 31,
(in thousands)			2024		2023
Customer derivatives and dealer offsets	Other noninterest income		$	(245)	$	367
Bifurcated embedded derivatives and dealer offsets	Other noninterest income		(192)		(533)
Mortgage banking derivatives	Mortgage loan revenue		901		1,227
Risk participations	Other noninterest income		2		(12)
			$	466	$	1,049

Credit-Risk-Related Contingent Features 

United manages its credit exposure on derivatives transactions by entering into a bilateral credit support agreement with each non-customer counterparty. The credit support agreements require collateralization of exposures beyond specified minimum threshold amounts. The details of these agreements, including the minimum thresholds, vary by counterparty.

United’s agreements with each of its derivative counterparties provide that if either party defaults on any of its indebtedness, then it could also be declared in default on its derivative obligations. The agreements with derivative counterparties also include provisions that if not met, could result in United being declared in default. United has agreements with certain of its derivative counterparties that provide that if United fails to maintain its status as a well-capitalized institution or is subject to a prompt corrective action directive, the counterparty could terminate the derivative positions and United would be required to settle its obligations under the agreements. Derivatives that are centrally cleared do not have credit-risk-related features that would require additional collateral if United’s credit rating were downgraded.

Note 8 – Goodwill and Other Intangible Assets

The carrying amount of goodwill and other intangible assets as of the dates indicated is summarized below.  

(in thousands)	March 31, 2024		December 31, 2023
Core deposit intangible	$	100,694	$	104,174
Less: accumulated amortization	(40,704)		(40,495)
Net core deposit intangible	59,990		63,679
Customer relationship intangible	8,400		8,400
Less: accumulated amortization	(2,104)		(1,906)
Net customer relationship intangible	6,296		6,494
Total intangibles subject to amortization, net (1)	66,286		70,173
Goodwill	921,253		919,914
Total goodwill and other intangible assets, net	$	987,539	$	990,087

(1) As intangible assets become fully amortized, they are excluded from balances presented.

The following is a summary of changes in the carrying amounts of goodwill: 

	Three Months Ended March 31,
(in thousands)	2024		2023
Balance, beginning of period (1)	$	919,914	$	751,174
Acquisitions	—		145,544
Measurement period adjustment - First Miami (2)	1,339		—
Balance, end of period (1)	$	921,253	$	896,718

(1) Goodwill balances are shown net of accumulated impairment losses of $306 million incurred prior to 2023.

(2) See Note 4 for further details.

25

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The estimated aggregate amortization expense for future periods for finite-lived intangibles is as follows:

(in thousands)
Year
Remainder of 2024	$	10,960
2025	12,774
2026	10,896
2027	9,018
2028	7,236
Thereafter	15,402
Total	$	66,286

Note 9 – Assets and Liabilities Measured at Fair Value

Fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering those assumptions, United uses a fair value hierarchy that distinguishes between assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions (unobservable inputs classified within Level 3 of the hierarchy). United has processes in place to review the significant valuation inputs and to reassess how the instruments are classified in the valuation framework.

Fair Value Hierarchy

Level 1 Valuation is based upon quoted prices (unadjusted) in active markets for identical assets or liabilities that United has the ability to access.

Level 2 Valuation is based upon quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals.

Level 3 Valuation is generated from model-based techniques that use at least one significant assumption based on unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity.

In instances when the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

The following is a description of the valuation methodologies used for assets and liabilities recorded at fair value.

Investment Securities

AFS debt securities and equity securities with readily determinable fair values are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include MBS issued by GSEs, municipal bonds, corporate debt securities, asset-backed securities and supranational entity securities and are valued based on observable inputs that include: quoted market prices for similar assets, quoted market prices that are not in an active market, or other inputs that are observable in the market and can be corroborated by observable market data for substantially the full term of the securities. Securities classified as Level 3 include those traded in less liquid markets and are valued based on estimates obtained from broker-dealers that are not directly observable or models which incorporate unobservable inputs.

Deferred Compensation Plan Assets and Liabilities

Included in other assets in the consolidated balance sheet are assets purchased to provide returns mirroring those promised to participants in the employee deferred compensation plan. These assets are mutual funds classified as Level 1. Deferred compensation liabilities, also classified as Level 1, are carried at the fair value of the obligation to the participant, which mirrors the fair value of the invested assets and is included in other liabilities in the consolidated balance sheet. Deferred compensation plan liabilities are unsecured general obligations of United.

26

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Mortgage Loans Held for Sale

United has elected the fair value option for most of its newly originated mortgage loans held for sale in order to reduce certain timing differences and better match changes in fair values of the loans with changes in the value of derivative instruments used to economically hedge them. The fair value of mortgage loans held for sale is determined using quoted prices for a similar asset, adjusted for specific attributes of that loan, and are classified as Level 2.

Derivative Financial Instruments

United uses derivatives to manage interest rate risk. The valuation of these instruments is typically determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. United also uses best effort and mandatory delivery forward loan sale commitments to hedge risk in its mortgage lending business.

United incorporates CVAs as necessary to appropriately reflect the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, United has considered the effect of netting and any applicable credit enhancements, such as collateral postings, thresholds and guarantees.

Management has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy. However, the CVAs associated with these derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. Generally, management’s assessment of the significance of the CVAs has indicated that they are not a significant input to the overall valuation of the derivatives. In cases when management’s assessment indicates that the CVA is a significant input, the related derivative is disclosed as a Level 3 value. In other cases, derivatives are categorized as Level 3 when there is not an observable forward-rate curve available for the duration of the contract.

Other derivatives classified as Level 3 include structured derivatives for which broker quotes, used as a key valuation input, were not observable. Risk participation agreements are classified as Level 3 instruments due to the incorporation of significant Level 3 inputs used to evaluate the probability of funding and the likelihood of customer default. Interest rate lock commitments, which relate to mortgage loan commitments, are categorized as Level 3 instruments as the fair value of these instruments is based on unobservable inputs for commitments that United does not expect to fund.

Servicing Rights for Residential and SBA/USDA Loans

United recognizes servicing rights upon the sale of residential and SBA/USDA loans sold with servicing retained. Management has elected to carry these assets at fair value. Given the nature of these assets, the key valuation inputs are unobservable and management classifies these assets as Level 3.

27

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents United’s assets and liabilities measured at fair value on a recurring basis as of the dates indicated, aggregated by the level in the fair value hierarchy within which those measurements fall.

(in thousands)
March 31, 2024	Level 1		Level 2		Level 3		Total
Assets:
AFS debt securities:
U.S. Treasuries	$	398,780	$	—	$	—	$	398,780
U.S. Government agencies & GSEs	—		297,426		—		297,426
State and political subdivisions	—		163,263		—		163,263
Residential MBS	—		1,517,893		—		1,517,893
Commercial MBS	—		673,081		—		673,081
Corporate bonds	—		193,740		2,160		195,900
Asset-backed securities	—		147,056		—		147,056
Equity securities with readily determinable fair values	4,553		1,787		—		6,340
Mortgage loans held for sale	—		38,140		—		38,140
Deferred compensation plan assets	13,124		—		—		13,124
Servicing rights for SBA/USDA loans	—		—		5,507		5,507
Residential mortgage servicing rights	—		—		37,358		37,358
Derivative financial instruments	—		40,391		12,811		53,202
Total assets	$	416,457	$	3,072,777	$	57,836	$	3,547,070
Liabilities:
Deferred compensation plan liability	$	13,119	$	—	$	—	$	13,119
Derivative financial instruments	—		78,228		13,185		91,413
Total liabilities	$	13,119	$	78,228	$	13,185	$	104,532

(in thousands)
December 31, 2023	Level 1		Level 2		Level 3		Total
Assets:
AFS debt securities:
U.S. Treasuries	$	387,349	$	—	$	—	$	387,349
U.S. Government agencies & GSEs	—		267,500		—		267,500
State and political subdivisions	—		164,049		—		164,049
Residential MBS	—		1,507,598		—		1,507,598
Commercial MBS	—		641,654		—		641,654
Corporate bonds	—		199,017		2,205		201,222
Asset-backed securities	—		161,712		—		161,712
Equity securities with readily determinable fair values	5,767		1,628		—		7,395
Mortgage loans held for sale	—		33,008		—		33,008
Deferred compensation plan assets	12,791		—		—		12,791
Servicing rights for SBA/USDA loans	—		—		5,444		5,444
Residential mortgage servicing rights	—		—		35,897		35,897
Derivative financial instruments	—		39,710		10,642		50,352
Total assets	$	405,907	$	3,015,876	$	54,188	$	3,475,971
Liabilities:
Deferred compensation plan liability	$	12,838	$	—	$	—	$	12,838
Derivative financial instruments	—		73,639		11,172		84,811
Total liabilities	$	12,838	$	73,639	$	11,172	$	97,649

28

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values.

	2024										2023
(in thousands)	Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds		Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds
Three Months Ended March 31,
Beginning balance	$	10,642	$	11,172	$	5,444	$	35,897	$	2,205	$	11,513	$	12,840	$	5,188	$	36,559	$	2,212
Business combinations	—		—		—		—		—		—		—		95		—		—
Additions	1,466		—		170		718		—		—		3		460		632		—
Transfers from Level 2	484		925		—		—		—		—		—		—		—		—
Sales and settlements	(923)		—		(241)		(760)		—		(11)		—		(220)		(452)		—
Fair value adjustments included in OCI	—		—		—		—		(45)		—		—		—		—		15
Fair value adjustments included in earnings	1,142		1,088		134		1,503		—		(154)		(1,648)		766		(658)		—
Ending balance	$	12,811	$	13,185	$	5,507	$	37,358	$	2,160	$	11,348	$	11,195	$	6,289	$	36,081	$	2,227

The following table presents quantitative information about significant Level 3 inputs for fair value on a recurring basis as of the dates indicated. 

Level 3 Assets and Liabilities	Valuation Technique	Significant Unobservable Inputs	March 31, 2024			December 31, 2023
			Range	Weighted Average		Range	Weighted Average
SBA/USDA loan servicing rights	Discounted cash flow	Discount rate	3.6% - 25.0%	12.7	%	8.4% - 25.0%	16.2	%
		Prepayment rate	2.0 - 38.0	19.3		3.5 - 37.4	18.5
Residential mortgage servicing rights	Discounted cash flow	Discount rate	10.0 - 12.5	10.1		10.0 - 15.0	10.0
		Prepayment rate	6.5 - 30.0	7.9		6.5 - 29.9	8.0
Corporate bonds	Discounted cash flow	Discount rate	6.6 - 7.2	7.0		6.1 - 6.7	6.5
Derivative assets - mortgage	Internal model	Pull through rate	64.0 - 100	90.5		60.0 - 100	90.5
Derivative assets and liabilities - other	Dealer priced	Dealer priced	N/A	N/A		N/A	N/A

Fair Value Option

United generally records mortgage loans held for sale at fair value under the fair value option. Interest income on these loans is calculated based on the note rate of the loan and is recorded in interest revenue. The following tables present the fair value and outstanding principal balance of loans accounted for under the fair value option, as well as the gain or loss recognized from the change in fair value for the periods indicated.

Mortgage Loans Held for Sale
(in thousands)	March 31, 2024		December 31, 2023
Outstanding principal balance	$	36,951	$	31,788
Fair value	38,140		33,008

Gain (Loss) from Change in Fair Value on Mortgage Loans Held for Sale
Location	Three Months Ended March 31,
(in thousands)	2024		2023
Mortgage loan gains and other related fees	$	(31)	$	231

Changes in fair value were mostly offset by hedging activities. An immaterial portion of these amounts was attributable to changes in instrument-specific credit risk.

29

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

United may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis. These adjustments to fair value usually result from the application of the lower of the amortized cost or fair value accounting or write-downs of individual assets due to impairment. The following table presents the fair value hierarchy and carrying value of assets that were still held as of March 31, 2024 and December 31, 2023, for which a nonrecurring fair value adjustment was recorded during the year-to-date periods presented.

(in thousands)	Level 1		Level 2		Level 3		Total
March 31, 2024
Loans held for investment	$	—	$	—	$	15,579	$	15,579
December 31, 2023
Loans held for investment	$	—	$	—	$	36,984	$	36,984

Loans held for investment that are reported above as being measured at fair value on a nonrecurring basis are generally impaired loans that have either been partially charged off or have specific reserves assigned to them. Nonaccrual loans that are collateral dependent are generally written down to net realizable value, which reflects fair value less the estimated costs to sell. Specific reserves that are established based on appraised value of collateral are considered nonrecurring fair value adjustments as well. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, United records the impaired loan as nonrecurring Level 3.

Assets and Liabilities Not Measured at Fair Value  

For financial instruments that have quoted market prices, those quotes are used to determine fair value. Financial instruments that have no defined maturity, have a remaining maturity of 180 days or less, or reprice frequently to a market rate, are assumed to have a fair value that approximates reported book value, after taking into consideration any applicable credit risk. If no market quotes are available, financial instruments are valued by discounting the expected cash flows using an estimated current market interest rate for the financial instrument. For off-balance sheet derivative instruments, fair value is estimated as the amount that United would receive or pay to terminate the contracts at the reporting date, taking into account the current unrealized gains or losses on open contracts.

Cash and cash equivalents and repurchase agreements have short maturities and therefore the carrying value approximates fair value. Due to the short-term settlement of accrued interest receivable and payable, the carrying amount closely approximates fair value.

Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect the premium or discount on any particular financial instrument that could result from the sale of United’s entire holdings. All estimates are inherently subjective in nature. Changes in assumptions could significantly affect the estimates.

Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets and liabilities that are not considered financial instruments include the mortgage banking operation, brokerage network, deferred income taxes, premises and equipment and goodwill. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

Off-balance sheet instruments (commitments to extend credit and standby letters of credit) for which draws can be reasonably predicted are generally short-term in maturity and are priced at variable rates. Therefore, the estimated fair values associated with these instruments are immaterial.

30

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The carrying amount and fair values as of the dates indicated for other financial instruments that are not measured at fair value on a recurring basis are as follows.

			Fair Value Level
(in thousands)	Carrying Amount		Level 1		Level 2		Level 3		Total
March 31, 2024
Assets:
HTM debt securities	$	2,465,133	$	17,779	$	2,025,133	$	—	$	2,042,912
Loans and leases, net	18,163,910		—		—		17,622,063		17,622,063
Liabilities:
Deposits	23,332,009		—		23,320,033		—		23,320,033
Long-term debt	324,854		—		—		310,182		310,182
December 31, 2023
Assets:
HTM debt securities	$	2,490,848	$	17,950	$	2,077,670	$	—	$	2,095,620
Loans and leases, net	18,110,684		—		—		17,585,073		17,585,073
Liabilities:
Deposits	23,310,611		—		23,305,223		—		23,305,223
Long-term debt	324,823		—		—		310,060		310,060

Note 10 – Stock-Based Compensation

United has an equity compensation plan that allows for grants of various share-based compensation. The general terms of the plan include a vesting period (usually four years) with an exercise period not to exceed ten years. Certain options and restricted stock unit awards provide for accelerated vesting if there is a change in control (as defined in the plan document). As of March 31, 2024, the plan covered 2.13 million shares that could be issued pursuant to additional awards granted under the plan.

The table below presents restricted stock unit and option activity for the three months ended March 31, 2024.

	Restricted Stock Unit Awards					Options
	Shares	Weighted- Average Grant- Date Fair Value		Aggregate Intrinsic Value ($000)		Shares	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2023	929,367	$	28.85			406,737	$	21.19
Granted	171,905	28.42				—	—
Released / Exercised	(42,467)	30.67		$	1,175	(55,654)	20.32			$	375
Cancelled	(55,672)	27.55				(2,353)	26.05
Outstanding at March 31, 2024	1,003,133	28.80		26,402		348,730	21.29		5.0	1,755
Vested / Exercisable at March 31, 2024	—	—				348,730	21.29		5.0	1,755

No compensation expense relating to options was included in earnings for the three months ended March 31, 2024 and 2023.

Compensation expense for restricted stock units and performance stock units without market conditions is based on the market value of United’s common stock on the date of grant. Compensation expense for performance stock units with market conditions is based on the grant date per share fair value, which was estimated using the Monte Carlo Simulation valuation model. United recognizes the impact of forfeitures as they occur. The value of restricted stock unit and performance stock unit awards is amortized into expense over the service period.

31

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

For the three months ended March 31, 2024 and 2023, expense of $2.22 million and $2.36 million, respectively, was recognized related to restricted stock unit and performance stock unit awards granted to United employees, which was included in salaries and employee benefits expense. In addition, for the three months ended March 31, 2024 and 2023, $183,000 and $122,000, respectively, was recognized in other expense for restricted stock unit awards granted to members of United’s Board of Directors.

A deferred income tax benefit related to stock-based compensation expense of $614,000 and $634,000 was included in the determination of income tax expense for the three months ended March 31, 2024 and 2023, respectively. As of March 31, 2024, there was $22.3 million of unrecognized expense related to non-vested restricted stock unit and performance stock unit awards granted under the plan. That cost is expected to be recognized over a weighted-average period of 2.6 years.

Note 11 – Reclassifications Out of AOCI

The following table presents the details regarding amounts reclassified out of AOCI for the periods indicated. Amounts shown in parentheses reduce earnings.

(in thousands)
Details about AOCI Components	Three Months Ended March 31,				Affected Line Item in the Statement Where Net Income is Presented
	2024		2023
Realized losses on AFS securities:
	$	—	$	(1,644)	Securities losses, net
	—		374		Income tax expense
	$	—	$	(1,270)	Net of tax
Amortization of unrealized losses on HTM securities transferred from AFS:
	$	(2,063)	$	(2,968)	Investment securities interest revenue
	493		720		Income tax expense
	$	(1,570)	$	(2,248)	Net of tax
Reclassifications related to derivative instruments accounted for as cash flow hedges:
Interest rate contracts	$	1,440	$	822	Long-term debt interest expense
	(368)		(210)		Income tax expense
	$	1,072	$	612	Net of tax
Amortization of defined benefit pension plan net periodic pension cost components:
Prior service cost	$	(44)	$	(61)	Salaries and employee benefits expense
	11		16		Income tax expense
	$	(33)	$	(45)	Net of tax
Total reclassifications for the period	$	(531)	$	(2,951)	Net of tax

32

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Note 12 – Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the periods indicated.

	Three Months Ended March 31,
(in thousands, except per share data)	2024		2023
Net income	$	62,631	$	62,300
Dividends on preferred stock	(1,573)		(1,719)
Earnings allocated to participating securities	(345)		(339)
Net income available to common shareholders	$	60,713	$	60,242
Weighted average shares outstanding:
Basic	119,662		115,451
Effect of dilutive securities:
Stock options	81		233
Restricted stock units	—		31
Diluted	119,743		115,715
Net income per common share:
Basic	$	0.51	$	0.52
Diluted	$	0.51	$	0.52

At March 31, 2024, United excluded from the computation of earnings per share 984 potentially dilutive shares of common stock issuable upon exercise of stock options because of their antidilutive effect. At March 31, 2023, United had no potentially dilutive instruments outstanding that were not included in the computation.

Note 13 – Regulatory Matters

As of March 31, 2024, United and the Bank were categorized as well-capitalized under the regulatory requirements in effect at that time. To be categorized as well-capitalized, United and the Bank must have exceeded the well-capitalized guideline ratios in effect at the time, as set forth in the table below, and have met certain other requirements. Management believes that United and the Bank exceeded all well-capitalized requirements at March 31, 2024, and there have been no conditions or events since quarter-end that would change the status of well-capitalized.

Regulatory capital ratios at March 31, 2024 and December 31, 2023, along with the minimum amounts required for capital adequacy purposes and to be well-capitalized under regulatory requirements in effect at such times, are presented below for United and the Bank:

					United Community Banks, Inc. (Consolidated)						United Community Bank
(dollars in thousands)	Minimum (1)		Well- Capitalized		March 31, 2024			December 31, 2023			March 31, 2024			December 31, 2023
Risk-based ratios:
CET1 capital	4.5	%	6.5	%	12.39		%	12.16		%	12.60		%	12.22		%
Tier 1 capital	6.0		8.0		12.83			12.60			12.60			12.22
Total capital	8.0		10.0		14.64			14.49			13.63			13.23
Leverage ratio	4.0		5.0		9.69			9.47			9.50			9.17
CET1 capital					$	2,468,825		$	2,432,518		$	2,502,765		$	2,435,962
Tier 1 capital					2,557,091			2,520,784			2,502,765			2,435,962
Total capital					2,917,664			2,898,474			2,707,793			2,638,009
Risk-weighted assets					19,933,869			20,007,236			19,861,459			19,933,429
Average total assets for the leverage ratio					26,400,773			26,621,561			26,351,912			26,563,946

(1) As of March 31, 2024 and December 31, 2023 the additional capital conservation buffer in effect was 2.50%

33

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

Note 14 – Commitments and Contingencies

United is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheet. The contract amounts of these instruments reflect the extent of involvement United has in particular classes of financial instruments. The exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and letters of credit written is represented by the contractual amount of these instruments. United uses the same credit policies in making commitments and conditional obligations as it uses for underwriting on-balance sheet instruments. In most cases, collateral or other security is required to support financial instruments with credit risk.

The following table summarizes the contractual amount of off-balance sheet instruments as of the dates indicated.

(in thousands)	March 31, 2024		December 31, 2023
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	4,075,892	$	4,305,483
Letters of credit	66,587		61,808

United, in the normal course of business, is subject to various pending and threatened lawsuits in which claims for monetary damages are asserted. Although it is not possible to predict the outcome of these lawsuits, or the range of any possible loss, management, after consultation with legal counsel, does not anticipate that the ultimate aggregate liability, if any, arising from these lawsuits will have a material adverse effect on United’s financial position or results of operations.

Tax Credit and Certain Equity Investments

United invests in certain LIHTC partnerships throughout its market area as a means of supporting local communities, as well as in entities that promote renewable energy sources. United receives tax credits related to these investments. For certain of the investments, United provides financing during the construction and development phase of the related projects and/or permanent financing upon completion of the project. United has concluded that these partnerships are VIEs of which it is not the primary beneficiary because it does not have the power to direct the activities that most significantly impact the VIEs' financial performance and, therefore, is not required to consolidate these VIEs. United's maximum potential exposure to losses relative to investments in these VIEs is generally limited to the sum of the outstanding investment balance, any future funding commitments and the balance of any related loans to the entity. Loans to these entities are underwritten in substantially the same manner as other loans and are generally secured.

United also has investments in and future funding commitments related to fintech fund limited partnerships, other community development entities and certain other equity method investments. United has concluded that these partnerships are VIEs of which it is not the primary beneficiary because it does not have the power to direct the activities that most significantly impact the VIEs' financial performance and, therefore, is not required to consolidate these VIEs. The risk exposure relating to such commitments is generally limited to the amount invested by United and any future funding commitments.

The following table summarizes, as of the dates indicated, tax credit and certain equity method investments:

(in thousands)	Balance Sheet Location	March 31, 2024		December 31, 2023
Investments in LIHTC:
Carrying amount	Other assets	$	57,728	$	48,867
Amount of future funding commitments included in carrying amount	Other liabilities	22,178		14,176
Lending exposure	Loans and leases held for investment	11,691		803
Renewable energy investments:
Carrying amount	Other assets	4,594		18,631
Amount of future funding commitments (1)	N/A	14,406		14,406
Fintech funds and certain other equity method investments:
Carrying amount	Other assets	34,401		33,720
Amount of future funding commitments not included in carrying amount	N/A	28,313		25,008

(1) Starting in 2024, United no longer records future funding commitments related to its renewable energy investments on the balance sheet. Prior to 2024, these commitments were included in other liabilities.

34

UNITED COMMUNITY BANKS, INC. AND SUBSIDIARIES

Notes to Consolidated Financial Statements (Unaudited)

The following table presents a summary of tax credits and amortization expense associated with the United’s tax credit investment activity. Activity related to renewable energy investments was not material to the financials for the period presented.

(dollars in thousands)	Income Statement Location	Three Months Ended March 31, 2024
Investments in LIHTC:
Income tax credits and other income tax benefits	Income tax expense	$	(1,996)
Amortization expense	Income tax expense	1,831

35

Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following is a discussion of our financial condition at March 31, 2024 and December 31, 2023 and our results of operations for the three months ended March 31, 2024 and 2023. The purpose of this discussion is to focus on information about our financial condition and results of operations which is not otherwise apparent from our consolidated financial statements and is intended to provide insight into our results of operations and financial condition. The following discussion and analysis should be read along with our consolidated financial statements and related notes included in Part I - Item 1 of this Report, “Cautionary Note Regarding Forward-Looking Statements” and the risk factors discussed in our 2023 10-K and the other reports we have filed with the SEC after we filed the 2023 10-K.

Unless the context otherwise requires, the terms “we,” “our,” “us” refer to United on a consolidated basis.

Overview

We offer a wide array of commercial and consumer banking services and investment advisory services through a 205 branch network throughout Georgia, South Carolina, North Carolina, Tennessee, Florida and Alabama. We have grown organically as well as through strategic acquisitions. At March 31, 2024, we had consolidated total assets of $27.4 billion and 3,071 full-time equivalent employees.

Results of Operations

We reported net income and diluted earnings per common share of $62.6 million and $0.51, respectively, for the first quarter of 2024. This compared to net income and diluted earnings per common share of $62.3 million and $0.52, respectively, for the same period in 2023.

Net interest revenue decreased to $199 million for the first quarter of 2024, compared to $211 million for the first quarter of 2023. The decrease was mostly driven by an increase in deposit interest expense that exceeded the increase in interest revenue from interest-earning assets. The combination of strong interest-bearing deposit growth, both organic and from the acquisition of First Miami, and higher rates paid on deposits contributed to an increase in deposit interest expense of $75.9 million. Interest revenue on interest-earning assets increased $57.2 million due to loan growth, including loans acquired from First Miami, and higher average interest rates earned on our loan and securities portfolios. In addition, decreased utilization of more costly wholesale borrowings also partially offset the increase in deposit interest expense. The net interest margin decreased to 3.20% for the three months ended March 31, 2024 from 3.61% for the same period in 2023 primarily due to the steeper increase in interest rates paid on deposits compared to the increase in interest rates earned on loans and securities.

We recorded a provision for credit losses of $12.9 million and $21.8 million for the first quarters of 2024 and 2023, respectively. Provision expense for the first quarter of 2023 included initial provisions for credit losses on non-PCD loans and unfunded commitments acquired from Progress of $10.4 million. We recognized higher net charge-offs for the first quarter of 2024 of $12.9 million compared to $7.08 million for the same period in 2023, which contributed to the increase in non-acquisition-related provision for credit losses for the first quarter of 2024.

Noninterest income of $39.6 million for the first quarter of 2024 was up $9.38 million, or 31%, from the first quarter of 2023, primarily driven by a $2.99 million increase in mortgage loan gains and related fees, a lease termination gain of $2.40 million recorded in other noninterest income, and death benefits on BOLI policies recognized during the period. The increase in mortgage gains and related fees was primarily due to a $1.50 million positive fair value adjustment on our mortgage servicing asset and higher gains on sales of mortgage loans.

For the first quarter of 2024, noninterest expenses of $145 million increased by $5.20 million compared to the same period of 2023. The increase was largely driven by a $6.29 million increase in salaries and employee benefits and an increase in FDIC assessment and other regulatory charges of $3.57 million. Salaries and benefits increased due to several factors, including the addition of First Miami employees, lower deferred origination costs and higher deferred compensation plan expense. During the first quarter of 2024, we recognized an additional $2.50 million in FDIC assessment expense to increase our accrual for our estimated share of the FDIC special assessment. These increases were partially offset by a $6.54 million decrease in merger-related and other charges due to lack of acquisition activity in the first quarter of 2024 compared to the first quarter of 2023 including the completion of the Progress acquisition.

Results for the first quarter of 2024 are discussed in further detail throughout the following sections of MD&A.

36

Critical Accounting Estimates

In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Our accounting and reporting estimates are in accordance with GAAP and conform to general practices within the banking industry. Estimates that are susceptible to significant changes include accounting for the ACL and fair value measurements, both of which require significant judgments by management. Actual results could differ significantly from those estimates. Also, different assumptions in the application of these accounting estimates could result in material changes in our consolidated financial position or consolidated results of operations. Our critical accounting estimates are discussed in MD&A in our 2023 10-K.

Non-GAAP Reconciliation and Explanation

This Report contains financial information determined by methods other than in accordance with GAAP. Such non-GAAP financial information includes the following measures: “tangible book value per common share,” and “tangible common equity to tangible assets.” In addition, management presents non-GAAP operating performance measures, which exclude merger-related and other items that are not part of our ongoing business operations. Operating performance measures include “net income – operating,” “diluted income per common share – operating,” “return on common equity – operating,” “return on tangible common equity – operating,” “return on assets – operating” and “efficiency ratio – operating.” We have developed internal policies and procedures to accurately capture and account for merger-related and other charges and those charges are reviewed with the Audit Committee of our Board each quarter. We use these non-GAAP measures because we believe they provide useful supplemental information for evaluating our operations and performance over periods of time, as well as in managing and evaluating our business and in discussions about our operations and performance. We believe these non-GAAP measures may also provide users of our financial information with a meaningful measure for assessing our financial results and credit trends, as well as a comparison to financial results for prior periods. Nevertheless, non-GAAP measures have inherent limitations, are not required to be uniformly applied and are not audited. These non-GAAP measures should be viewed in addition to, and not as an alternative to or substitute for, measures determined in accordance with GAAP. In addition, because non-GAAP measures are not standardized, it may not be possible to compare our non-GAAP measures to similarly titled measures used by other companies. To the extent applicable, reconciliations of these non-GAAP measures to the most directly comparable measures as reported in accordance with GAAP are included in Table 1 of MD&A.

37

UNITED COMMUNITY BANKS, INC.
Table 1 - Financial Highlights
(in thousands, except per share data)
	2024			2023												First Quarter 2024 - 2023 Change
	First Quarter			Fourth Quarter			Third Quarter			Second Quarter			First Quarter
INCOME SUMMARY
Interest revenue	$	336,728		$	338,698		$	323,147		$	295,775		$	279,487
Interest expense	137,579			135,245			120,591			95,489			68,017
Net interest revenue	199,149			203,453			202,556			200,286			211,470			(6)	%
Provision for credit losses	12,899			14,626			30,268			22,753			21,783
Noninterest income	39,587			(23,090)			31,977			36,387			30,209			31
Total revenue	225,837			165,737			204,265			213,920			219,896			3
Noninterest expenses	145,002			154,587			144,474			132,407			139,805			4
Income before income tax expense	80,835			11,150			59,791			81,513			80,091			1
Income tax expense	18,204			(2,940)			11,925			18,225			17,791			2
Net income	62,631			14,090			47,866			63,288			62,300			1
Non-operating items	2,187			67,450			9,168			3,645			8,631
Income tax benefit of non-operating items	(493)			(16,714)			(2,000)			(820)			(1,955)
Net income - operating (1)	$	64,325		$	64,826		$	55,034		$	66,113		$	68,976		(7)
PERFORMANCE MEASURES
Per common share:
Diluted net income - GAAP	$	0.51		$	0.11		$	0.39		$	0.53		$	0.52		(2)
Diluted net income - operating (1)	0.52			0.53			0.45			0.55			0.58			(10)
Cash dividends declared	0.23			0.23			0.23			0.23			0.23			—
Book value	26.83			26.52			25.87			25.98			25.76			4
Tangible book value (3)	18.71			18.39			17.70			17.83			17.59			6
Key performance ratios:
Return on common equity - GAAP (2)(4)	7.14		%	1.44		%	5.32		%	7.47		%	7.34		%
Return on common equity - operating (1)(2)(4)	7.34			7.27			6.14			7.82			8.15
Return on tangible common equity - operating (1)(2)(3)(4)	10.68			10.58			9.03			11.35			11.63
Return on assets - GAAP (4)	0.90			0.18			0.68			0.95			0.95
Return on assets - operating (1)(4)	0.93			0.92			0.79			1.00			1.06
Net interest margin (FTE) (4)	3.20			3.19			3.24			3.37			3.61
Efficiency ratio - GAAP	60.47			66.33			61.32			55.71			57.20
Efficiency ratio - operating (1)	59.15			59.57			57.43			54.17			53.67
Equity to total assets	12.06			11.95			11.85			11.89			11.90
Tangible common equity to tangible assets (3)	8.49			8.36			8.18			8.21			8.17
ASSET QUALITY
NPAs	$	107,230		$	92,877		$	90,883		$	103,737		$	73,403		46
ACL - loans	210,934			208,071			201,557			190,705			176,534			19
Net charge-offs	12,908			10,122			26,638			8,399			7,084
ACL - loans to loans	1.15		%	1.14		%	1.11		%	1.10		%	1.03		%
Net charge-offs to average loans (4)	0.28			0.22			0.59			0.20			0.17
NPAs to total assets	0.39			0.34			0.34			0.40			0.28
AT PERIOD END ($ in millions)
Loans	$	18,375		$	18,319		$	18,203		$	17,395		$	17,125		7
Investment securities	5,859			5,822			5,701			5,914			5,915			(1)
Total assets	27,365			27,297			26,869			26,120			25,872			6
Deposits	23,332			23,311			22,858			22,252			22,005			6
Shareholders’ equity	3,300			3,262			3,184			3,106			3,078			7
Common shares outstanding (thousands)	119,137			119,010			118,976			115,266			115,152			3

(1 )Excludes non-operating items as detailed on Non-GAAP Performance Measures Reconciliation on next page. (2) Net income less preferred stock dividends, divided by average realized common equity, which excludes AOCI. (3) Excludes effect of acquisition related intangibles and associated amortization. (4) Annualized.

38

UNITED COMMUNITY BANKS, INC.
Table 1 (Continued) - Financial Highlights
Non-GAAP Performance Measures Reconciliation
(in thousands, except per share data)	2024			2023
	First Quarter			Fourth Quarter			Third Quarter			Second Quarter			First Quarter
Net income to operating income reconciliation
Net income (GAAP)	$	62,631		$	14,090		$	47,866		$	63,288		$	62,300
Bond portfolio restructuring loss	—			51,689			—			—			—
Gain on lease termination	(2,400)			—			—			—			—
FDIC special assessment	2,500			9,995			—			—			—
Merger-related and other charges	2,087			5,766			9,168			3,645			8,631
Income tax benefit of non-operating items	(493)			(16,714)			(2,000)			(820)			(1,955)
Net income - operating	$	64,325		$	64,826		$	55,034		$	66,113		$	68,976
Diluted income per common share reconciliation
Diluted income per common share (GAAP)	$	0.51		$	0.11		$	0.39		$	0.53		$	0.52
Bond portfolio restructuring loss	—			0.32			—			—			—
Gain on lease termination	(0.02)			—			—			—			—
FDIC special assessment	0.02			0.06			—			—			—
Merger-related and other charges	0.01			0.04			0.06			0.02			0.06
Diluted income per common share - operating	$	0.52		$	0.53		$	0.45		$	0.55		$	0.58
Book value per common share reconciliation
Book value per common share (GAAP)	$	26.83		$	26.52		$	25.87		$	25.98		$	25.76
Effect of goodwill and other intangibles	(8.12)			(8.13)			(8.17)			(8.15)			(8.17)
Tangible book value per common share	$	18.71		$	18.39		$	17.70		$	17.83		$	17.59
Return on tangible common equity reconciliation
Return on common equity (GAAP)	7.14		%	1.44		%	5.32		%	7.47		%	7.34		%
Bond portfolio restructuring loss	—			4.47			—			—			—
Gain on lease termination	(0.22)			—			—			—			—
FDIC special assessment	0.23			0.86			—			—			—
Merger-related and other charges	0.19			0.50			0.82			0.35			0.81
Return on common equity - operating	7.34			7.27			6.14			7.82			8.15
Effect of goodwill and other intangibles	3.34			3.31			2.89			3.53			3.48
Return on tangible common equity - operating	10.68		%	10.58		%	9.03		%	11.35		%	11.63		%
Return on assets reconciliation
Return on assets (GAAP)	0.90		%	0.18		%	0.68		%	0.95		%	0.95		%
Bond portfolio restructuring loss	—			0.57			—			—			—
Gain on lease termination	(0.03)			—			—			—			—
FDIC special assessment	0.03			0.11			—			—			—
Merger-related and other charges	0.03			0.06			0.11			0.05			0.11
Return on assets - operating	0.93		%	0.92		%	0.79		%	1.00		%	1.06		%
Efficiency ratio reconciliation
Efficiency ratio (GAAP)	60.47		%	66.33		%	61.32		%	55.71		%	57.20		%
Gain on lease termination	0.60			—			—			—			—
FDIC special assessment	(1.05)			(4.29)			—			—			—
Merger-related and other charges	(0.87)			(2.47)			(3.89)			(1.54)			(3.53)
Efficiency ratio - operating	59.15		%	59.57		%	57.43		%	54.17		%	53.67		%
Tangible common equity to tangible assets reconciliation
Equity to total assets (GAAP)	12.06		%	11.95		%	11.85		%	11.89		%	11.90		%
Effect of goodwill and other intangibles	(3.25)			(3.27)			(3.33)			(3.31)			(3.36)
Effect of preferred equity	(0.32)			(0.32)			(0.34)			(0.37)			(0.37)
Tangible common equity to tangible assets	8.49		%	8.36		%	8.18		%	8.21		%	8.17		%

39

Net Interest Revenue

Net interest revenue, which is the difference between the interest earned on assets and the interest paid on deposits and borrowed funds, is the single largest component of total revenue. Management seeks to optimize this revenue while balancing interest rate, credit and liquidity risks.

The banking industry generally uses two ratios to measure the relative profitability of net interest revenue. The net interest spread measures the difference between the average yield on interest-earning assets and the average rate paid on interest-bearing liabilities. The interest rate spread eliminates the effect of noninterest-bearing deposits and shareholders’ equity and gives a direct perspective on the effect of market interest rate movements. The net interest margin is an indication of the profitability of a company’s balance sheet and is defined as net interest revenue as a percent of average total interest-earning assets, which includes the positive effect of funding a portion of interest-earning assets with noninterest-bearing deposits and shareholders’ equity.

The following discussion provides additional details on the daily average balances and net interest revenue for the periods presented. The tables that follow indicate the relationship between interest revenue and expense and the daily average amounts of assets and liabilities, which provides further insight into net interest spread and net interest margin for the periods indicated.

Net interest revenue for the first quarters of 2024 and 2023 was $199 million and $211 million, respectively. FTE net interest revenue for the first quarter of 2024 was $200 million, representing a decrease of $12.4 million, or 6%, from the same period in 2023. The net interest spreads for the first quarters of 2024 and 2023 were 2.16% and 2.87%, respectively. The net interest margins for the first quarters of 2024 and 2023 were 3.20% and 3.61%, respectively.

The decrease in FTE net interest revenue was primarily driven by average interest-bearing deposits, due to a combination of growth in our deposit base and an increase in the average rate paid on those deposits. The average daily balance of interest-bearing deposits increased $3.09 billion compared to the first quarter of 2023 and the average rate paid on those deposits increased 150 basis points, resulting in a $75.9 million increase in deposit interest expense. The growth in interest-bearing deposits is partially attributable to the addition of deposits acquired in the First Miami transaction, in addition to organic growth. We have continued to attract and retain deposits by remaining competitive with our interest rate offerings, which has increased our average rate paid on deposits. The growth in our deposit base has allowed us to reduce our utilization of more costly short-term borrowings and FHLB advances, as the average balances of these combined decreased $561 million compared to the first quarter of 2023 resulting in a reduction in interest expense on these types of borrowings of $6.26 million.

The increase in loan interest revenue of $47.4 million partially offsets the increase in interest expense paid on deposits. Growth in our average loans of $1.40 billion and an increase in the yield on the loan portfolio of 56 basis points drove the increase in loan interest revenue. Approximately $594 million of the increase in average loans was provided by the addition of the First Miami loan portfolio, while the remaining represented organic growth. The yield on the loan portfolio increased to 6.24% due to rising interest rates and $1.16 million in earnings from recent fair value hedges of loans, which were entered into during the fourth quarter of 2023 and the first quarter of 2024. Loan interest revenue for the first quarters of 2024 and 2023 included $4.65 million and $4.76 million, respectively, of discount accretion on loans received through business combinations. Additionally, despite a decrease in the average balance of securities, FTE interest revenue on securities increased $6.32 million compared to the same period of last year, driven by an increase in the average interest rate earned on securities of 41 basis points. The increase in yield is mostly attributable to rising interest rates, the bond portfolio restructuring we completed in the fourth quarter of 2023 and the earnings from the fair value hedges of certain AFS securities of $2.52 million, which we entered into during the second quarter of 2023.

The decrease in net interest margin and net interest spread for the first quarter of 2024 compared to the first quarter of 2023 was driven by a steeper increase in average rates paid on deposits compared to the increase in rates earned on loans and securities. In addition, strong interest-bearing deposit growth contributed to the increase in interest expense, decreasing our net interest revenue and contributing to net interest margin compression.

40

Table 2 - Average Consolidated Balance Sheets and Net Interest Analysis

For the Three Months Ended March 31,

(dollars in thousands, (FTE))

	2024						2023
	Average Balance		Interest		Average Rate		Average Balance		Interest		Average Rate
Assets:
Interest-earning assets:
Loans, net of unearned income (FTE) (1)(2)	$	18,299,739	$	283,960	6.24	%	$	16,897,372	$	236,530	5.68	%
Taxable securities (3)	5,828,391		44,715		3.07		6,059,323		37,876		2.50
Tax-exempt securities (FTE) (1)(3)	366,350		2,311		2.52		422,583		2,834		2.68
Federal funds sold and other interest-earning assets	674,594		6,805		4.06		472,325		3,352		2.88
Total interest-earning assets (FTE)	25,169,074		337,791		5.39		23,851,603		280,592		4.76
Noninterest-earning assets:
Allowance for credit losses	(212,996)						(167,584)
Cash and due from banks	221,203						271,210
Premises and equipment	386,021						329,135
Other assets (3)	1,618,315						1,484,936
Total assets	$	27,181,617					$	25,769,300
Liabilities and Shareholders' Equity:
Interest-bearing liabilities:
Interest-bearing deposits:
NOW and interest-bearing demand	$	6,078,090	46,211		3.06		$	4,499,907	17,599		1.59
Money market	5,864,217		50,478		3.46		5,223,267		25,066		1.95
Savings	1,192,828		706		0.24		1,416,931		538		0.15
Time	3,596,486		35,944		4.02		2,348,588		12,313		2.13
Brokered time deposits	50,343		445		3.56		208,215		2,345		4.57
Total interest-bearing deposits	16,781,964		133,784		3.21		13,696,908		57,861		1.71
Federal funds purchased and other borrowings	13		—		—		107,955		1,148		4.31
Federal Home Loan Bank advances	4		—		—		453,056		5,112		4.58
Long-term debt	324,838		3,795		4.70		324,701		3,896		4.87
Total borrowed funds	324,855		3,795		4.70		885,712		10,156		4.65
Total interest-bearing liabilities	17,106,819		137,579		3.23		14,582,620		68,017		1.89
Noninterest-bearing liabilities:
Noninterest-bearing deposits	6,398,079						7,697,844
Other liabilities	390,451						357,367
Total liabilities	23,895,349						22,637,831
Shareholders' equity	3,286,268						3,131,469
Total liabilities and shareholders' equity	$	27,181,617					$	25,769,300
Net interest revenue (FTE)			$	200,212					$	212,575
Net interest-rate spread (FTE)					2.16	%					2.87	%
Net interest margin (FTE) (4)					3.20	%					3.61	%

(1)Interest revenue on tax-exempt securities and loans has been increased to reflect comparable interest on taxable securities and loans. The rate used was 26%, reflecting the statutory federal income tax rate and the federal tax adjusted state income tax rate.

(2)Included in the average balance of loans outstanding are loans on which the accrual of interest has been discontinued and loans that are held for sale.

(3)Unrealized losses on securities, including those related to the transfer from AFS to HTM, have been reclassified to other assets. Pretax unrealized losses of $322 million in 2024 and $419 million in 2023 are included in other assets for purposes of this presentation.

(4)Net interest margin is taxable equivalent net interest revenue divided by average interest-earning assets.

41

The following table shows the relative effect on net interest revenue for changes in the average outstanding amounts (volume) of interest-earning assets and interest-bearing liabilities and the rates earned and paid on such assets and liabilities (rate). Variances resulting from a combination of changes in rate and volume are allocated in proportion to the absolute dollar amounts of the change in each category.

Table 3 - Change in Interest Revenue and Expense on a Taxable Equivalent Basis

(in thousands)

		Three Months Ended March 31, 2024
	Compared to 2023 Increase (Decrease) Due to Changes in
		Volume		Rate		Total
Interest-earning assets:
Loans (FTE)		$	20,554	$	26,876	$	47,430
Taxable securities		(1,491)		8,330		6,839
Tax-exempt securities (FTE)		(362)		(161)		(523)
Federal funds sold and other interest-earning assets		1,765		1,688		3,453
Total interest-earning assets (FTE)		20,466		36,733		57,199
Interest-bearing liabilities:
NOW and interest-bearing demand accounts		7,751		20,861		28,612
Money market accounts		3,403		22,009		25,412
Savings deposits		(96)		264		168
Time deposits		8,734		14,897		23,631
Brokered time deposits		(1,480)		(420)		(1,900)
Total interest-bearing deposits		18,312		57,611		75,923
Federal funds purchased & other borrowings		(1,148)		—		(1,148)
FHLB advances		(5,112)		—		(5,112)
Long-term debt		2		(103)		(101)
Total borrowed funds		(6,258)		(103)		(6,361)
Total interest-bearing liabilities		12,054		57,508		69,562
Change in net interest revenue (FTE)		$	8,412	$	(20,775)	$	(12,363)

Provision for Credit Losses

The ACL represents management’s estimate of life of loan credit losses in the loan portfolio and unfunded loan commitments. Management’s estimate of credit losses under CECL is determined using a model that relies on reasonable and supportable forecasts and historical loss information to determine the balance of the ACL and resulting provision for credit losses. The provision for credit losses recorded in each period was the amount determined by management such that the total ACL reflected the appropriate balance of expected life of loan losses.

We recorded a provision for credit losses of $12.9 million for the three months ended March 31, 2024, compared to $21.8 million for the same period of 2023. The provision recorded for the first quarter of 2023 included the initial provision for credit losses on Progress non-PCD loans and unfunded commitments of $10.4 million. Excluding the provision for credit losses for the initial non-PCD ACL for Progress recorded in the first quarter of 2023, provision expense for the first quarter of 2024 increased $1.56 million compared to the same period of 2023. The increase was driven by an increase in net charge-offs of $5.82 million, partially offset by slower loan growth and a decline in unfunded commitments during the quarter. See Table 11 in MD&A for further detail on net charge-offs.

Additional discussion on credit quality and the ACL is included in the “Asset Quality and Risk Elements” section of MD&A in this Report.

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Noninterest Income

The following table presents the components of noninterest income for the periods indicated.

Table 4 - Noninterest Income

(in thousands)

	Three Months Ended March 31,				Change
	2024		2023		Amount		Percent
Service charges and fees:
Overdraft fees	$	3,000	$	2,492	$	508	20	%
ATM and debit card fees	3,505		3,775		(270)		(7)
Other service charges and fees	2,759		2,432		327		13
Total service charges and fees	9,264		8,699		565		6
Mortgage loan gains and related fees	7,511		4,521		2,990		66
Wealth management fees	6,313		5,724		589		10
Gains on sales of other loans	1,537		1,916		(379)		(20)
Lending and loan servicing fees	4,210		4,016		194		5
Securities losses, net	—		(1,644)		1,644
Other noninterest income:
Customer derivative fees	239		355		(116)		(33)
Other investment gains	1,103		1,064		39
BOLI	2,895		1,615		1,280		79
Treasury management income	1,497		1,104		393		36
Other	5,018		2,839		2,179		77
Total other noninterest income	10,752		6,977		3,775		54
Total noninterest income	$	39,587	$	30,209	$	9,378	31

Mortgage loan gains and related fees consist primarily of fees earned on mortgage originations, gains on the sale of mortgages in the secondary market, mortgage derivative hedging gains and losses and fair value adjustments to our mortgage servicing asset. The change in mortgage income is strongly tied to the interest rate environment and industry conditions. We recognize the majority of fees on mortgages when customers enter into mortgage rate lock commitments, making our mortgage rate lock volume a significant driver of mortgage gains in any given period.

The increase in mortgage loan gains and related fees was primarily a result of higher gains on mortgage sales and positive fair value adjustments to our mortgage servicing asset. The increase in gains on sales was a result of our decision to sell more of our mortgage loan production compared to the same period of 2023, designating approximately 67% of mortgage production held for sale compared to 41% during the first quarter of 2023. In addition, during the first quarter of 2024, we recorded a $1.50 million positive fair value adjustment to the mortgage servicing rights asset, compared to an $1.10 million negative fair value adjustment during the first quarter of 2023. These increases were partially offset by a decrease in mortgage rate lock volume as shown in the table below.

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Table 5 - Mortgage Loan Metrics
(dollars in thousands)
		Three Months Ended March 31,
		2024		2023		% Change
	Mortgage rate locks	$	259,577	$	334,697	(22)	%
	# of mortgage rate locks	791		923		(14)
	Mortgage loans sold	$	125,939	$	79,279	59
	# of mortgage loans sold	405		295		37
	Mortgage loans originated:
	Purchases	$	148,225	$	192,693	(23)
	Refinances	22,760		31,852		(29)
	Total	$	170,985	$	224,545	(24)
	# of mortgage loans originated	504		617		(18)

The increase in wealth management fees is mostly attributable to the addition of First Miami’s assets under management. Our total assets under management and advisement as of March 31, 2024 totaled $5.39 billion.

Our SBA/USDA lending strategy includes selling a portion of the loan production each quarter. The amount of loans sold depends on several variables including the current lending environment, balance sheet management activities and market pricing. From time to time, we also sell certain equipment financing receivables. The following table presents loans sold and the corresponding gains recognized on the sales for the periods indicated.

Table 6 - Other Loan Sales
(in thousands)
		Three Months Ended March 31,
		2024				2023
		Loans Sold		Gain		Loans Sold		Gain
	Guaranteed portion of SBA/USDA loans	$	9,388	$	641	$	21,770	$	1,523
	Equipment financing receivables	28,323		896		18,703		393
	Total	$	37,711	$	1,537	$	40,473	$	1,916

Significant changes in other noninterest income include:

•The increase in BOLI income is primarily a result of death benefits realized during the first quarter of 2024.

•Other noninterest income increased mostly due to a lease termination gain of $2.40 million as result of our exiting one of our corporate offices.

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Noninterest Expenses 

The following table presents the components of noninterest expenses for the periods indicated. 

Table 7 - Noninterest Expenses

(in thousands)

	Three Months Ended March 31,				Change
	2024		2023		Amount		Percent
Salaries and employee benefits	$	84,985	$	78,698	$	6,287	8	%
Communications and equipment	11,920		10,008		1,912		19
Occupancy	11,099		9,889		1,210		12
Advertising and public relations	1,901		2,349		(448)		(19)
Postage, printing and supplies	2,648		2,537		111		4
Professional fees	5,988		6,072		(84)		(1)
Lending and loan servicing expense	1,827		2,319		(492)		(21)
Outside services - electronic banking	2,918		3,425		(507)		(15)
FDIC assessments and other regulatory charges	7,566		4,001		3,565		89
Amortization of intangibles	3,887		3,528		359		10
Merger-related and other charges	2,087		8,631		(6,544)		(76)
Other	8,176		8,348		(172)		(2)
Total noninterest expenses	$	145,002	$	139,805	$	5,197	4

The increase in salaries and employee benefits for the first quarter of 2024 compared to the same period of 2023 was driven by several factors, including the inclusion of First Miami employees, higher deferred compensation plan expense, an increase in bonus expense and lower deferred origination costs partly driven by lower mortgage production. In addition, merit increases, which included annual increases that went into effect for all employees on April 1, 2023 also contributed to the rise in salaries and employee benefits expense. These increases were offset by decreases in commissions and incentive pay. Full time equivalent headcount totaled 3,071 at March 31, 2024, up from 3,052 at March 31, 2023.

Communications and equipment expense increased primarily driven by incremental software contract costs and the growth in our network with the addition of recent acquisitions.

Approximately half of the increase in occupancy costs for the first quarter of 2024 compared to the same period of 2023 was attributable to the additional branches acquired in the First Miami transaction. The remaining increase was attributable to higher repairs and maintenance costs and depreciation expense.

During the first quarter of 2024, upon receipt of notification from the FDIC of an upward adjustment to the original special assessment, we recorded an additional $2.50 million in expense related to our estimate of the FDIC special assessment. The special assessment was implemented in the fourth quarter of 2023 as part of the FDIC’s efforts to recover losses resulting from the bank failures that occurred in early 2023.

Merger-related and other charges for the first quarter of 2024 primarily consisted of costs associated with our rebranding, branch closure costs, and expenses related to the First Miami acquisition. Merger-related and other charges for the first quarter of 2023 were primarily related to the acquisition of Progress.

Balance Sheet Review

Total assets at March 31, 2024 and December 31, 2023 were $27.4 billion and $27.3 billion, respectively. Total liabilities at March 31, 2024 and December 31, 2023 were $24.1 billion and $24.0 billion, respectively. Shareholders’ equity totaled $3.30 billion and $3.26 billion at March 31, 2024 and December 31, 2023, respectively.

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Loans

Our loan portfolio is our largest category of interest-earning assets. The following table presents a summary of the loan portfolio by loan type as of March 31, 2024, of which approximately 76% was secured by real estate. During 2023, we ceased originating new manufactured housing loans.

Table 8 - Loan Portfolio Composition

As of March 31, 2024

Table 9 - CRE - Income Producing Portfolio Composition

As of March 31, 2024

Our office income producing CRE portfolio totaled $757 million as of March 31, 2024. The average loan within this category was $1.30 million and the largest loan was $12.3 million. Senior care loans, which we no longer originate, totaled $335 million at March 31, 2024.

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Asset Quality and Risk Elements

We manage asset quality and control credit risk through review and oversight of the loan portfolio as well as adherence to policies designed to promote sound underwriting and loan monitoring practices. Our credit risk management function is responsible for monitoring asset quality and Board approved portfolio concentration limits, establishing credit policies and procedures and enforcing the consistent application of these policies and procedures.

We conduct reviews of special mention and substandard performing and non-performing loans, past due loans and portfolio concentrations on a regular basis to identify risk migration and potential charges to the ACL. These items are discussed in a series of meetings attended by credit risk management leadership and leadership from various lending groups. In addition to the reviews mentioned above, an independent loan review team reviews the portfolio to ensure consistent application of risk rating policies and procedures.

The ACL reflects our assessment of the life of loan expected credit losses in the loan portfolio and unfunded loan commitments. This assessment involves uncertainty and judgment and is subject to change in future periods. The amount of any changes could be significant if our assessment of loan quality or collateral values changes substantially with respect to one or more loan relationships or portfolios. The allocation of the ACL is based on reasonable and supportable forecasts, historical data, subjective judgment and estimates and therefore, is not necessarily indicative of the specific amounts or loan categories in which charge-offs may ultimately occur. See the Critical Accounting Estimates section of MD&A in our 2023 10-K for additional information on the ACL.

The total ACL for loans at March 31, 2024 was relatively unchanged compared to December 31, 2023 mostly driven by slower loan growth in the first quarter of 2024. Within the loan portfolio, however, there were increases in the ACL for equipment financing and manufactured housing loans, partially offset by a decrease in the ACL for owner occupied CRE loans. The increase in the ACL for manufactured housing resulted from an increase in the loss-given-default model assumption for this portfolio driven by recent history, while the increase in the ACL for equipment finance loan was driven mostly by loan growth. The decrease in the ACL for owner occupied CRE loans is attributable to a CECL model overlay applied to this portfolio to adjust the expected default rate based on expectations of future performance. Our ACL for unfunded commitments decreased mostly due to a decrease in our construction commitments.

Table 10 - Allocation of ACL

(in thousands)

	March 31, 2024				December 31, 2023
	ACL			% of loans in each category to total loans	ACL			% of loans in each category to total loans
Owner occupied CRE	$	19,658		18	$	23,542		18
Income producing CRE	46,798			23	47,755			23
Commercial & industrial	31,858			13	30,890			13
Commercial construction	20,023			11	21,741			10
Equipment financing	39,982			8	33,383			9
Total commercial	158,319			73	157,311			73
Residential mortgage	28,636			18	28,219			17
Home equity	9,715			5	9,647			5
Residential construction	1,529			1	1,833			2
Manufactured housing	12,044			2	10,339			2
Consumer	691			1	722			1
Total ACL - loans	210,934			100	208,071			100
ACL - unfunded commitments	13,185				16,057
Total ACL	$	224,119			$	224,128
ACL - loans as a percentage of total loans	1.15		%		1.14		%
ACL - loans as a percentage of nonaccrual loans	201				227

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The following table presents a summary of net charge-offs to average loans for the periods indicated.

Table 11 - Net Charge-offs to Average Loans

(in thousands)

	Three Months Ended March 31,
	2024			2023
Net charge-offs (recoveries)
Owner occupied CRE	$	202		$	90
Income producing CRE	205			2,306
Commercial & industrial	3,906			225
Commercial construction	20			(37)
Equipment financing	6,362			3,375
Residential mortgage	(16)			(87)
Home equity	(54)			33
Residential construction	119			(15)
Manufactured housing	1,569			628
Consumer	595			566
Total net charge-offs	$	12,908		$	7,084
Average loans
Owner occupied CRE	$	3,278,673		$	3,058,802
Income producing CRE	4,224,227			3,577,883
Commercial & industrial	2,401,573			2,443,581
Commercial construction	1,892,917			1,771,940
Equipment financing	1,539,483			1,468,538
Residential mortgage	3,211,015			2,660,345
Home equity	961,520			926,806
Residential construction	278,745			486,686
Manufactured housing	331,442			334,754
Consumer	180,144			168,037
Total average loans	$	18,299,739		$	16,897,372
Net charge-offs to average loans (1)
Owner occupied CRE	0.02		%	0.01		%
Income producing CRE	0.02			0.26
Commercial & industrial	0.65			0.04
Commercial construction	—			(0.01)
Equipment financing	1.66			0.93
Residential mortgage	—			(0.01)
Home equity	(0.02)			0.01
Residential construction	0.17			(0.01)
Manufactured housing	1.90			0.76
Consumer	1.33			1.37
Total	0.28			0.17

(1) Annualized.

The increase in net charge-offs for the first quarter of 2024 compared to the same period of 2023 was primarily driven by increases in charge-offs in the equipment finance, commercial and industrial and manufactured housing portfolios. During the first quarter of 2024, we continued to have elevated equipment finance charge-offs related to loans to borrowers in the long-haul trucking industry. The long-haul trucking equipment segment comprising a small portion of the portfolio is deemed not representative of the entire equipment financing portfolio. The increase in net commercial and industrial loans was primarily driven by a small population of larger charge-offs. Manufactured housing loans are higher risk and higher yielding loans, that are more sensitive to economic conditions such as inflation and rising interest rates, which contributed to the increase in charge-offs compared to the same period last year.

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Nonperforming Assets

The table below summarizes NPAs for the periods indicated. NPAs include nonaccrual loans, OREO and repossessed assets. The increase in nonaccrual loans since December 31, 2023 was primarily driven by loans that moved to nonaccrual status during the quarter mostly in the commercial and industrial, equipment financing and manufactured housing loan portfolios. These additions contributed $8.17 million, $7.16 million and $6.82 million of the increase, respectively. These additions were partially offset by reductions in nonaccrual loans resulting from repayments, payoffs, and charge-offs as well as loans returning to accrual status.

Table 12 - NPAs

(in thousands)

	March 31, 2024			December 31, 2023
Nonaccrual loans	104,969			91,687
OREO and repossessed assets	2,261			1,190
Total NPAs	$	107,230		$	92,877
Nonaccrual loans as a percentage of total loans	0.57		%	0.50		%
NPAs as a percentage of total assets	0.39			0.34

A loan is placed on nonaccrual status when, in the opinion of management, the full principal and interest on a loan is not likely to be collected, or when the loan becomes 90 days past due. A loan may continue on accrual after 90 days with senior management approval if it is well collateralized and in the process of collection. When a loan is placed on nonaccrual status, interest previously accrued but not collected is reversed against current interest revenue. Interest payments received on nonaccrual loans are applied to reduce the loan’s amortized cost. Loans are generally returned to accrual status when all the principal and interest amounts contractually due are brought current, there is a sustained period of repayment performance and future payments are reasonably assured.

Generally, we do not commit to lend additional funds to customers whose loans are on nonaccrual status, although in certain isolated cases, we execute forbearance agreements whereby we agree to continue to fund construction loans to completion or other lines of credit as long as the borrower meets the conditions of the forbearance agreement. We may also fund other amounts necessary to protect collateral such as amounts to pay past due property taxes and insurance coverage.

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Investment Securities

The composition of the investment securities portfolio reflects our investment strategy of maintaining an appropriate level of liquidity while providing a relatively stable source of revenue. The investment securities portfolio also provides a balance to interest rate risk and credit risk in other categories of the balance sheet while providing a vehicle for the investment of available funds, furnishing liquidity, and supplying securities to pledge as required collateral for certain deposits and borrowings. The table below summarizes the carrying value of our securities portfolio and other relevant portfolio metrics including weighted-average life and effective duration as of the dates presented. Effective duration represents the expected change in the price of a security when rates change by 100 basis points.

Table 13 - Investment Securities

As of March 31, 2024

(in thousands)

	March 31, 2024					December 31, 2023
	Carrying Value			% of portfolio		Carrying Value			% of portfolio		$ Change
AFS	$	3,393,399		58	%	$	3,331,084		57	%	$	62,315
HTM	2,465,133			42	%	2,490,848			43	%	(25,715)
Total investment securities	$	5,858,532				$	5,821,932				$	36,600
Investment securities as a % of total assets	21		%			21		%
Weighted average life	6.2 years					6.2 years
Swap adjusted effective duration	4.1		%			4.0		%
Effective duration	4.5		%			4.4		%

In 2023, we entered into fair value hedges on a portion of our AFS securities portfolio in order to mitigate the impact of any potential future unrealized losses on our tangible common equity. Gains and losses related to the hedge and hedged item are reflected in investment securities interest income. The changes in the fair value of the hedge and the hedged item substantially offset each other. See Note 7 to the financial statements for further detail.

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Table 14 - Investment Securities Portfolio Composition

As of March 31, 2024

(in thousands)

At March 31, 2024, HTM debt securities had a fair value of $2.04 billion, indicating net unrealized losses of $422 million. Additional unrealized losses on HTM debt securities of $66.1 million (pre-tax) were included in AOCI as a result of the transfer of AFS debt securities to HTM in 2022. Unrealized losses were primarily attributable to changes in interest rates.

In accordance with CECL, our HTM debt securities portfolio is evaluated quarterly to assess whether an ACL is required. We measure expected credit losses on HTM debt securities on a collective basis by major security type. The estimate of expected credit losses considers historical credit loss information that is adjusted for current conditions and reasonable and supportable forecasts. For U.S. Treasury and Government Agency securities, we include a zero loss assumption. At March 31, 2024 and December 31, 2023, calculated credit losses on HTM debt securities were deemed de minimis due to the high credit quality of the portfolio, which included securities issued or guaranteed by U.S. Government agencies, GSEs, high credit quality municipalities and supranational entities. As a result, no ACL for HTM debt securities was recorded.

For AFS debt securities in an unrealized loss position, if we intend to sell, or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis, the security's amortized cost basis is written down to fair value through income. Absent circumstances when an AFS security would be sold, we evaluate whether the decline in fair value has resulted from credit losses or other factors. The evaluation considers factors such as the extent to which fair value is less than amortized cost, changes to the security’s rating, and adverse conditions specific to the security. If the evaluation indicates a credit loss exists, an ACL may be recorded, with such allowance limited to the amount by which fair value is below amortized cost. Any impairment unrelated to credit factors is recognized in OCI. At March 31, 2024 and December 31, 2023, there was no ACL related to the AFS debt securities portfolio. Unrealized losses at March 31, 2024 and December 31, 2023 primarily reflected the effect of changes in interest rates.

Goodwill and Other Intangible Assets

Goodwill represents the premium paid for acquired companies above the net fair value of the assets acquired and liabilities assumed, including separately identifiable intangible assets. Management evaluates goodwill annually, or more frequently if necessary, to determine if any impairment exists. During the first quarter of 2024, we recorded a measurement period adjustment to the acquisition date fair values of other assets and other liabilities recorded for First Miami. The adjustment related to the lack of realizability of certain tax credits, which resulted in a net increase in goodwill of $1.34 million. See Note 4 to the financial statements for further detail. At March 31, 2024 and December 31, 2023, the net carrying amount of goodwill was $921 million and $920 million, respectively.

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We also have core deposit and customer relationship intangible assets, representing the value of acquired deposit and customer relationships, respectively, which are amortizing intangible assets. Amortizing intangible assets are required to be tested for impairment only when events or circumstances indicate that impairment may exist.

Deposits

Customer deposits are the primary source of funds for the continued growth of our earning assets. We believe our high level of service, as evidenced by our strong customer satisfaction scores, has been instrumental in attracting and retaining customer deposit accounts. Since December 31, 2023, money market deposit balances increased with offsetting decreases in other customer deposit types. This was driven by higher demand for money market accounts, which are more liquid than time deposits and offer a higher interest rate than demand and savings accounts. As of March 31, 2024, we had approximately $9.00 billion of uninsured deposits, of which $2.88 billion was collateralized by investment securities.

Table 15 - Deposits

(in thousands)

	March 31, 2024		December 31, 2023
Noninterest-bearing demand	$	6,409,659	$	6,534,307
NOW and interest-bearing demand	6,054,940		6,155,193
Money market and savings	7,097,312		6,808,394
Time	3,595,236		3,649,498
Total customer deposits	23,157,147		23,147,392
Brokered deposits	174,862		163,219
Total deposits	$	23,332,009	$	23,310,611

Borrowing Activities

At both March 31, 2024 and December 31, 2023, we had long-term debt outstanding of $325 million, which includes senior debentures, subordinated debentures, and trust preferred securities. At March 31, 2024 and December 31, 2023 there were no short-term borrowings or FHLB advances outstanding. The need to utilize wholesale funding sources has decreased as our deposit and cash balances have substantially provided for our liquidity needs.

Contractual Obligations

There have not been any material changes to our contractual obligations since December 31, 2023.

Off-Balance Sheet Arrangements

We are a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of customers. These financial instruments include commitments to extend credit, letters of credit and financial guarantees.

A commitment to extend credit is an agreement to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Letters of credit and financial guarantees are conditional commitments issued to guarantee a customer’s performance to a third party and have essentially the same credit risk as extending loan facilities to customers. Those commitments are primarily issued to local businesses.

The exposure to credit loss in the event of nonperformance by the other party to the commitments to extend credit, letters of credit and financial guarantees is represented by the contractual amount of these instruments. We use the same credit underwriting procedures for making commitments, letters of credit and financial guarantees, as we use for underwriting on-balance sheet instruments. Management evaluates each customer’s creditworthiness on a case-by-case basis and the amount of the collateral, if deemed necessary, is based on the credit evaluation. Collateral held varies, but may include unimproved and improved real estate, certificates of deposit, personal property or other acceptable collateral.

All of these instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheet. The total amount of these instruments does not necessarily represent future cash requirements because a significant portion of these instruments expire without being used. We are not involved in off-balance sheet contractual relationships, other than those disclosed in

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this Report, that could result in liquidity needs or other commitments, or that could significantly affect earnings. See Note 23 to the consolidated financial statements included in our 2023 10-K and Note 14 to the consolidated financial statements in this Report for additional information on off-balance sheet arrangements.

Interest Rate Sensitivity Management

The absolute level and volatility of interest rates can have a significant effect on profitability. The objective of interest rate risk management is to identify and manage the sensitivity of net interest revenue to changing interest rates, consistent with our overall financial goals. Based on economic conditions, asset quality and various other considerations, management establishes tolerance ranges for interest rate sensitivity and manages within these ranges. 

Net interest revenue and the fair value of financial instruments are influenced by changes in the level of interest rates. We limit our exposure to fluctuations in interest rates through policies established by our ALCO and approved by the Board. The ALCO meets periodically and has responsibility for formulating and recommending asset/liability management policies to the Board, formulating and implementing strategies to improve balance sheet positioning and/or earnings, and reviewing interest rate sensitivity. 

One of the tools management uses to estimate and manage the sensitivity of net interest revenue to changes in interest rates is an asset/liability simulation model. Resulting estimates are based upon multiple assumptions for each scenario, including loan and deposit re-pricing characteristics and the rate of prepayments. The ALCO periodically reviews the assumptions for reasonableness based on historical data and future expectations; however, actual net interest revenue may differ from model results. The primary objective of the simulation model is to measure the potential change in net interest revenue over time using multiple interest rate scenarios. The base scenario assumes rates remain flat and is the scenario to which all others are compared, in order to measure the change in net interest revenue. Policy limits are based on immediate rate shock scenarios, as well as gradually rising and falling rate scenarios, which are all compared to the base scenario. Our assumptions include floors such that market rates and discount rates do not go below zero. Other scenarios analyzed may include delayed rate shocks, yield curve steepening or flattening, or other variations in rate movements. While the primary policy scenarios focus on a 12-month time frame, longer time horizons are also modeled. 

Our policy is based on the 12-month impact on net interest revenue of interest rate shocks and ramps that increase from 100 to 400 basis points or decrease 100 to 200 basis points from the base scenario. In the shock scenarios, rates immediately change the full amount at the scenario onset. In the ramp scenarios, rates change by 25 basis points per month. Our policy limits the projected change in net interest revenue over the first 12 months to an 8% decrease for each 100 basis point change in the increasing and decreasing rate ramp and shock scenarios. The following table presents our interest sensitivity position at the dates indicated.

Table 16 - Interest Sensitivity

(in thousands)

	Increase (Decrease) in Net Interest Revenue from Base Scenario at
	March 31, 2024				December 31, 2023
Change in Rates	Shock		Ramp		Shock		Ramp
200 basis point increase	2.73	%	1.32	%	(0.88)	%	(1.70)	%
100 basis point increase	1.42		0.79		(0.38)		(0.88)
100 basis point decrease	(2.35)		(1.48)		(0.60)		0.14
200 basis point decrease	(6.32)		(2.56)		(2.89)		0.10

The recent environment has been marked by the most rapid rate increases in decades, which, in part, has made non-bank products, such as U.S. Treasuries and money market funds, more attractive to our deposit customers. For this and other reasons such as the Federal Reserve’s quantitative tightening and the aftermath of COVID stimulus, the banking industry’s deposit base has been shrinking since the first half of 2022. This industry-wide outflow of deposits has increased price competition for bank deposits. As such, industry deposit betas, including ours, have been increasing at a faster pace relative to the last rising rate cycle. Deposit beta is a measure of the change in a bank’s average rate paid on deposits to the change in the federal funds rate. Our cumulative total deposit beta for the current rising rate cycle increased to 43% in the first quarter of 2024. Our cumulative total deposit beta in the last upward rate cycle from November 2015 to July 2019 was 22%.

Our interest sensitivity model includes significant key assumptions which may change over time. The scenario results presented in the table above assume parallel movements in the yield curve, which may differ from actual future curve behavior. Although our model generally assumes no change in deposit portfolio size or composition, we have included an assumption for the runoff of surge deposits since 2021. In the second quarter of 2023, in response to the rapid rate increases mentioned above, we increased the beta assumption

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in our model. As of March 31, 2024, the modeled total deposit beta, which is measured as the change in our overall deposit rate as a percentage of the change in the targeted Federal Funds rate, was 44% in an up scenario and 39% in a down scenario. A higher total deposit beta is generally unfavorable in a rising rate environment and favorable if rates are falling.

Liquidity Management 

Liquidity is defined as the ability to convert assets into cash or cash equivalents without significant loss and to raise additional funds by increasing liabilities. Liquidity management involves maintaining the ability to meet the daily cash flow requirements of customers, both depositors and borrowers. The primary objective is to ensure that sufficient funding is available, at a reasonable cost, to meet ongoing operational cash needs and to take advantage of revenue producing opportunities as they arise. While the desired level of liquidity will vary depending upon a variety of factors, our primary goal is to maintain a sufficient level of liquidity in all expected economic environments. To assist in determining the adequacy of our liquidity, we perform a variety of liquidity stress tests. We maintain an unencumbered liquid asset reserve to help ensure our ability to meet our obligations under normal conditions for at least a 12-month period and under severely adverse liquidity conditions for a minimum of 30 days.

An important part of the Bank’s liquidity resides in the asset portion of the balance sheet, which provides liquidity primarily through loan interest and principal repayments and the maturities and sales of securities, as well as the ability to use these assets as collateral for borrowings on a secured basis.

The Bank’s main source of liquidity is customer interest-bearing and noninterest-bearing deposit accounts. Liquidity is also available from wholesale funding sources consisting primarily of repurchase agreements, Federal funds purchased, FHLB advances, and brokered deposits. These sources of liquidity are generally short-term in nature and are used as necessary to fund asset growth and meet other short-term liquidity needs. As part of our liquidity management, we focus on maximizing the amount of securities and loans available as collateral for contingent liquidity sources and calibrating our assumptions in our liquidity stress test on an ongoing basis, particularly as it relates to deposit duration. At March 31, 2024, we had sufficient qualifying collateral to support additional borrowings, which is detailed in the table below.

Table 17 - Borrowing Capacity
As of March 31, 2024
(in thousands)
	FHLB	$	2,026,671
	Federal Reserve - Discount Window	2,437,394
	Total borrowing capacity	$	4,464,065
	Unpledged securities available as collateral for additional borrowings	$	2,955,837

In addition, because the Holding Company is a separate entity and apart from the Bank, it must provide for its own liquidity. The Holding Company is responsible for the payment of dividends declared for its common and preferred shareholders, and interest and principal on any outstanding debt or trust preferred securities. The Holding Company currently has internal capital resources to meet these obligations. While the Holding Company has access to the capital markets, the ultimate sources of its liquidity are subsidiary service fees and dividends from the Bank, which are limited by applicable law and regulations. A South Carolina state-chartered bank is permitted to pay a dividend of up to 100% of its current year earnings without requesting approval of the South Carolina Board of Financial Institutions, provided certain conditions are met. Holding Company liquidity is managed to a minimum of 15-months of anticipated cash expenditures after considering all of its liquidity needs over this period.

Significant uses and sources of cash during the three months ended March 31, 2024 are as follows. See the consolidated statement of cash flows for further detail.

•Net cash provided by operating activities of $88.8 million reflects net income of $62.6 million adjusted for non-cash transactions, partly offset by changes in loans held for sale and other assets. Significant non-cash transactions for the period included a $12.9 million provision for credit losses and net depreciation, amortization, and accretion of $10.9 million.

•Net cash used in investing activities of $123 million primarily consisted of a net increase in loans of $67.6 million and purchases of AFS securities and outflows for equity investments totaling $307 million. These uses of cash were partially offset by proceeds from securities sales, maturities and calls of $258 million.

•Net cash used in financing activities of $8.24 million was driven by a net increase in deposits of $21.0 million, more than offset by dividends on common and preferred stock of $29.3 million.

In the opinion of management, our liquidity position at March 31, 2024 was sufficient to meet our expected cash flow requirements for the foreseeable future.

54

Capital Resources and Dividends

Shareholders’ equity at March 31, 2024 was $3.30 billion, an increase of $38.6 million from December 31, 2023 primarily due to year-to-date earnings, partially offset by dividends declared on common and preferred stock.

The following table shows capital ratios, as calculated under applicable regulatory guidelines, at March 31, 2024 and December 31, 2023. As of March 31, 2024, capital levels remained characterized as “well-capitalized” under regulatory requirements in effect at the time. Additional information related to capital ratios is provided in Note 13 to the consolidated financial statements.

Table 18 - Capital Ratios

							United Community Banks, Inc. (Consolidated)				United Community Bank
	Minimum		Well- Capitalized		Minimum Capital Plus Capital Conservation Buffer		March 31, 2024		December 31, 2023		March 31, 2024		December 31, 2023
Risk-based ratios:
CET1 capital	4.5	%	6.5	%	7.0	%	12.39	%	12.16	%	12.60	%	12.22	%
Tier 1 capital	6.0		8.0		8.5		12.83		12.60		12.60		12.22
Total capital	8.0		10.0		10.5		14.64		14.49		13.63		13.23
Leverage ratio	4.0		5.0		N/A		9.69		9.47		9.50		9.17

Effect of Inflation and Changing Prices

A bank’s asset and liability structure is substantially different from that of an industrial firm in that primarily all assets and liabilities of a bank are monetary in nature with relatively little investment in fixed assets or inventories. Inflation has an important effect on the growth of total assets and the resulting need to increase equity capital at higher than normal rates in order to maintain an appropriate equity to assets ratio.

Management believes the effect of inflation on financial results depends on our ability to react to changes in interest rates, and by such reaction, reduce the inflationary effect on performance. We have an asset/liability management program to manage interest rate sensitivity. In addition, periodic reviews of banking services and products are conducted to adjust pricing in view of current and expected costs.

55

Item 3.    Quantitative and Qualitative Disclosure About Market Risk

There have been no material changes in our market risk as of March 31, 2024 from that presented in our 2023 10-K. Our interest rate sensitivity position at March 31, 2024 is set forth in Table 16 in MD&A of this Report and incorporated herein by this reference.

Item 4.    Controls and Procedures

    (a) Disclosure Controls and Procedures. Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of our disclosure controls and procedures (as such term is defined in Exchange Act Rule 13a-15(e)) as of March 31, 2024. Based on that evaluation, our principal executive officer and chief financial officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this Report.

    (b) Changes in Internal Control Over Financial Reporting. No change in our internal control over financial reporting (as such term is defined in Exchange Act Rule 13a-15(f)) occurred during the fiscal quarter ended March 31, 2024 that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

56

Part II. OTHER INFORMATION 

Item 1. Legal Proceedings

In the ordinary course of business, the Holding Company and the Bank are parties to various legal proceedings. Additionally, in the ordinary course of business, the Holding Company and the Bank are subject to regulatory examinations and investigations. Based on our current knowledge and advice of counsel, in the opinion of management there is no such pending or threatened legal matter which would result in a material adverse effect upon our consolidated financial condition or results of operations.

Items 1A. Risk Factors

There have been no material changes to the risk factors previously disclosed in the 2023 10-K.

Item 5. Other Information

During the three months ended March 31, 2024, no director or officer of the Company adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

Item 6. Exhibits

(d)     Exhibits. See Exhibit Index below.

EXHIBIT INDEX
Exhibit No.	Description
3.1	Restated Articles of Incorporation of United Community Banks, Inc. as amended through August 13, 2021 (incorporated herein by reference to Exhibit 3.1 to United Community Bank Inc.'s Quarterly Report on Form 10-Q for the period ended September 30, 2021, filed on November 5, 2021).
3.2	Amended and Restated Bylaws of United Community Banks, Inc., as amended (incorporated herein by reference to Exhibit 3.2 to United Community Banks, Inc.’s Quarterly Report on Form 10-Q for the period ended March 31, 2015, filed with the SEC on May 11, 2015).
31.1	Certification by H. Lynn Harton, President and Chief Executive Officer of United Community Banks, Inc., pursuant to Exchange Act Rule 13a-14(a).
31.2	Certification by Jefferson L. Harralson, Executive Vice President and Chief Financial Officer of United Community Banks, Inc., pursuant to Exchange Act Rule 13a-14(a).
32	Certification of CEO and CFO pursuant to 18 U.S.C. Section 1350.
101	Interactive data files for United Community Bank, Inc.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, formatted in Inline XBRL: (i) the Consolidated Balance Sheets (unaudited); (ii) the Consolidated Statements of Income (unaudited); (iii) the Consolidated Statements of Comprehensive Income (unaudited); (iv) the Consolidated Statements of Changes in Shareholders’ Equity (unaudited); (v) the Consolidated Statements of Cash Flows (unaudited); and (vi) the Notes to Consolidated Financial Statements (unaudited).
104	The cover page from United Community Bank’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 (formatted in Inline XBRL and included in Exhibit 101)

57

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned thereunto duly authorized.

UNITED COMMUNITY BANKS, INC.

/s/ H. Lynn Harton

H. Lynn Harton

President and Chief Executive Officer

(Principal Executive Officer)

/s/ Jefferson L. Harralson

Jefferson L. Harralson

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

/s/ Alan H. Kumler

Alan H. Kumler

Senior Vice President and Chief Accounting Officer

(Principal Accounting Officer)

Date: May 9, 2024

58

EX-31.1

Exhibit 31.1

I, H. Lynn Harton, certify that:

1. I have reviewed this quarterly report on Form 10-Q of United Community Banks, Inc. (the “Registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a - 15(f) and 15d - 15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 9, 2024
	/s/ H. Lynn Harton
	H. Lynn Harton
	President and Chief Executive Officer of the Registrant

EX-31.2

Exhibit 31.2

I, Jefferson L. Harralson, certify that:

1. I have reviewed this quarterly report on Form 10-Q of United Community Banks, Inc. (the “Registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a - 15(f) and 15d - 15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting. 

Date: May 9, 2024
	/s/ Jefferson L. Harralson
	Jefferson L. Harralson
	Executive Vice President and Chief Financial Officer of the Registrant

EX-32

Exhibit 32

CERTIFICATIONS PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of United Community Banks, Inc. (“United”) on Form 10-Q for the period ending March 31, 2024 filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of United certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of United.

	/s/ H. Lynn Harton
Name:	H. Lynn Harton
Title:	President and Chief Executive Officer
Date:	May 9, 2024
	/s/ Jefferson L. Harralson
Name:	Jefferson L. Harralson
Title:	Executive Vice President and Chief Financial Officer
Date:	May 9, 2024

XML

Cover - shares	3 Months Ended
	Mar. 31, 2024	Apr. 30, 2024
Entity Listings [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-35095
Entity Registrant Name	UNITED COMMUNITY BANKS, INC.
Entity Incorporation, State or Country Code	GA
Entity Tax Identification Number	58-1807304
Entity Address, Address Line One	125 Highway 515 East
Entity Address, City or Town	Blairsville
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30512
City Area Code	706
Local Phone Number	781-2265
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		119,141,235
Entity Central Index Key	0000857855
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common stock, par value $1 per share
Entity Listings [Line Items]
Title of 12(b) Security	Common stock, par value $1 per share
Trading Symbol	UCBI
Security Exchange Name	NASDAQ
Depositary shares, each representing 1/1000th interest in a share of Series I Non-Cumulative Preferred Stock
Entity Listings [Line Items]
Title of 12(b) Security	Depositary shares, each representing 1/1000th interest in a share of Series I Non-Cumulative Preferred Stock
Trading Symbol	UCBIO
Security Exchange Name	NASDAQ

XML

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 203,932	$ 200,781
Interest-bearing deposits in banks	758,001	803,094
Cash and cash equivalents	961,933	1,003,875
Debt securities available-for-sale	3,393,399	3,331,084
Debt securities held-to-maturity (fair value $2,042,912 and $2,095,620, respectively)	2,465,133	2,490,848
Loans held for sale	38,140	33,008
Loans and leases held for investment	18,374,844	18,318,755
Allowance for credit losses - loans and leases	(210,934)	(208,071)
Loans and leases, net	18,163,910	18,110,684
Premises and equipment, net	386,052	378,421
Bank owned life insurance	342,486	345,371
Goodwill and other intangible assets, net	987,539	990,087
Other assets	626,296	613,873
Total assets	27,364,888	27,297,251
Deposits:
Noninterest-bearing demand	6,409,659	6,534,307
Interest-bearing deposits	16,922,350	16,776,304
Total deposits	23,332,009	23,310,611
Long-term debt	324,854	324,823
Accrued expenses and other liabilities	407,915	400,292
Total liabilities	24,064,778	24,035,726
Shareholders' equity:
Preferred stock, $1 par value: 10,000,000 shares authorized; 3,662 shares Series I issued and outstanding; $25,000 per share liquidation preference	88,266	88,266
Common stock, $1 par value: 200,000,000 shares authorized, 119,136,518 and 119,010,319 shares issued and outstanding, respectively	119,137	119,010
Common stock issuable: 560,833 and 620,108 shares, respectively	11,923	13,110
Capital surplus	2,702,807	2,699,112
Retained earnings	614,612	581,219
Accumulated other comprehensive loss	(236,635)	(239,192)
Total shareholders' equity	3,300,110	3,261,525
Total liabilities and shareholders' equity	$ 27,364,888	$ 27,297,251

XML

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
HTM debt securities	$ 2,042,912,000	$ 2,095,620,000
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock authorized (in shares)	10,000,000	10,000,000
Preferred stock issued (in shares)	3,662	3,662
Preferred stock outstanding (in shares)	3,662	3,662
Preferred stock liquidation preference (in dollars per share)	$ 25,000	$ 25,000
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock authorized (in shares)	200,000,000	200,000,000
Common stock issued (in shares)	119,136,518	119,010,319
Common stock outstanding (in shares)	119,136,518	119,010,319
Common stock issuable (in shares)	560,833	620,108

XML

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest revenue:
Loans, including fees	$ 283,983	$ 236,431
Investment securities, including tax exempt of $1,721 and $2,110, respectively	46,436	39,986
Deposits in banks and short-term investments	6,309	3,070
Total interest revenue	336,728	279,487
Interest expense:
Deposits	133,784	57,861
Short-term borrowings	0	1,148
Federal Home Loan Bank advances	0	5,112
Long-term debt	3,795	3,896
Total interest expense	137,579	68,017
Net interest revenue	199,149	211,470
Provision for credit losses	12,899	21,783
Net interest revenue after provision for credit losses	186,250	189,687
Noninterest income:
Wealth management fees	6,313	5,724
Gains from sales of other loans	1,537	1,916
Lending and loan servicing fees	4,210	4,016
Securities losses, net	0	(1,644)
Other	10,752	6,977
Total noninterest income	39,587	30,209
Total revenue	225,837	219,896
Noninterest expenses:
Salaries and employee benefits	84,985	78,698
Communications and equipment	11,920	10,008
Occupancy	11,099	9,889
Advertising and public relations	1,901	2,349
Postage, printing and supplies	2,648	2,537
Professional fees	5,988	6,072
Lending and loan servicing expense	1,827	2,319
Outside services - electronic banking	2,918	3,425
FDIC assessments and other regulatory charges	7,566	4,001
Amortization of intangibles	3,887	3,528
Merger-related and other charges	2,087	8,631
Other	8,176	8,348
Total noninterest expenses	145,002	139,805
Income before income taxes	80,835	80,091
Income tax expense	18,204	17,791
Net of tax	62,631	62,300
Net income available to common shareholders, basic	60,713	60,242
Net income available to common shareholders, diluted	$ 60,713	$ 60,242
Net income per common share:
Basic (in dollars per share)	$ 0.51	$ 0.52
Diluted (in dollars per share)	$ 0.51	$ 0.52
Weighted average common shares outstanding:
Basic (in shares)	119,662	115,451
Diluted (in shares)	119,743	115,715
Service charges and fees
Noninterest income:
Service charges and other related fees	$ 9,264	$ 8,699
Mortgage loan gains and other related fees
Noninterest income:
Service charges and other related fees	$ 7,511	$ 4,521

XML

Consolidated Statements of Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Investment securities, tax exempt	$ 1,721	$ 2,110

XML

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income, Before-tax Amount	$ 80,835	$ 80,091
Net income, Tax (Expense) Benefit	(18,204)	(17,791)
Net of tax	62,631	62,300
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains, Before-tax Amount		43,279
Unrealized holding gains, Tax (Expense) Benefit		(10,284)
Unrealized holding gains, Net of Tax Amount		32,995
Reclassification adjustment for losses included in net income, Before-tax Amount		1,644
Reclassification adjustment for losses included in net income, Tax (Expense) Benefit	0	(374)
Reclassification adjustment for losses included in net income, Net of Tax Amount		1,270
Net unrealized gains, Before-tax Amount	356	44,923
Net unrealized gains, Tax (Expense) Benefit	(209)
Net unrealized gains, Tax (Expense) Benefit		(10,658)
Net unrealized gains, Net of Tax Amount	147	34,265
Amortization of unrealized losses on held-to-maturity securities transferred from available-for-sale, Before-tax amount	2,063
Amortization of unrealized losses on held-to-maturity securities transferred from available-for-sale, Tax (Expense) Benefit	(493)
Amortization of unrealized losses on held-to-maturity securities transferred from available-for-sale, Net of Tax Amount	1,570
Unrealized losses on held-to-maturity securities transferred from available-for-sale:
Amortization of unrealized losses, Before-tax Amount		2,968
Amortization of unrealized losses, Tax (Expense) Benefit		(720)
Amortization of unrealized losses, Net of Tax Amount		2,248
Derivative instruments designated as cash flow hedges:
Unrealized holding gains (losses) on derivatives, Before-tax Amount	2,524	(1,202)
Unrealized holding gains (losses) on derivatives, Tax (Expense) Benefit	(645)	307
Unrealized holding gains (losses) on derivatives, Net of Tax Amount	1,879	(895)
Gains on derivative instruments realized in net income, Before-tax Amount	(1,440)	(822)
Gains on derivative instruments realized in net income, Tax (Expense) Benefit	368	210
Gains on derivative instruments realized in net income, Net of Tax Amount	(1,072)	(612)
Net cash flow hedge activity, Before-tax Amount	1,084	(2,024)
Net cash flow hedge activity, Tax (Expense) Benefit	(277)	517
Net cash flow hedge activity, Net of tax Amount	807	(1,507)
Amortization of defined benefit pension plan net periodic pension cost components, Before-tax Amount	44	61
Amortization of defined benefit pension plan net periodic pension cost components, Tax (Expense) Benefit	(11)	(16)
Amortization of defined benefit pension plan net periodic pension cost components, Net of Tax Amount	33	45
Total other comprehensive income, Before-tax Amount	3,547	45,928
Total other comprehensive income, Tax (Expense) Benefit	(990)	(10,877)
Total other comprehensive income, Net of Tax Amount	2,557	35,051
Comprehensive income, Before-tax Amount	84,382	126,019
Comprehensive income, Tax (Expense) Benefit	(19,194)	(28,668)
Comprehensive income, Net of Tax Amount	$ 65,188	$ 97,351

XML

Consolidated Statement of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Preferred Stock	Common Stock Issuable	Capital Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		106,222,758
Beginning balance at Dec. 31, 2022	$ 2,700,674	$ 106,223	$ 96,422	$ 12,307	$ 2,306,366	$ 508,844	$ (329,488)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	62,300					62,300
Other comprehensive income	35,051						35,051
Impact of acquisitions (in shares)		8,770,531
Impact of acquisitions	306,461	$ 8,771			297,690
Preferred stock dividends	(1,719)					(1,719)
Common stock dividends	(26,819)					(26,819)
Impact of equity-based compensation awards (in shares)		121,888
Impact of equity-based compensation awards	2,520	$ 122		498	1,900
Impact of other United sponsored equity plans (in shares)		36,389
Impact of other United sponsored equity plans	(345)	$ 36		(828)	447
Ending balance (in shares) at Mar. 31, 2023		115,151,566
Ending balance at Mar. 31, 2023	$ 3,078,123	$ 115,152	96,422	11,977	2,606,403	542,606	(294,437)
Beginning balance (in shares) at Dec. 31, 2023	119,010,319	119,010,319
Beginning balance at Dec. 31, 2023	$ 3,261,525	$ 119,010	88,266	13,110	2,699,112	581,219	(239,192)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	62,631					62,631
Other comprehensive income	2,557						2,557
Impact of acquisitions	0
Preferred stock dividends	(1,573)					(1,573)
Common stock dividends	(27,665)					(27,665)
Impact of equity-based compensation awards (in shares)		80,147
Impact of equity-based compensation awards	3,112	$ 80		76	2,956
Impact of other United sponsored equity plans (in shares)		46,052
Impact of other United sponsored equity plans	$ (477)	$ 47		(1,263)	739
Ending balance (in shares) at Mar. 31, 2024	119,136,518	119,136,518
Ending balance at Mar. 31, 2024	$ 3,300,110	$ 119,137	$ 88,266	$ 11,923	$ 2,702,807	$ 614,612	$ (236,635)

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Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Common stock dividends (in dollars per share)	$ 0.23	$ 0.23

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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net income	$ 62,631	$ 62,300
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion, net	10,880	12,126
Provision for credit losses	12,899	21,783
Stock based compensation	2,403	2,482
Deferred income tax expense	4,059	8,103
Securities losses, net	0	1,644
Gains from sales of other loans	(1,537)	(1,916)
Changes in assets and liabilities:
Other assets	(12,359)	10,303
Accrued expenses and other liabilities	14,965	(22,029)
Loans held for sale	(5,132)	(4,703)
Net cash provided by operating activities	88,809	90,093
Debt securities held-to-maturity:
Proceeds from maturities and calls	27,051	31,550
Debt securities available-for-sale:
Proceeds from sales	647	380,661
Proceeds from maturities and calls	229,902	83,794
Purchases	(302,962)	(25,862)
Net increase in loans	(67,629)	(345,316)
Payments for other investments	(4,353)	(74,323)
Proceeds from other investments	380	93,687
Proceeds from sales of premises and equipment	16	2,169
Purchases of premises and equipment	(13,710)	(22,602)
Net cash received in acquisition	0	57,101
Other investing inflows	8,145	436
Net cash (used in) provided by investing activities	(122,513)	181,295
Financing activities:
Net increase in deposits	21,024	793,162
Net decrease in short-term borrowings	0	(292,732)
Proceeds from FHLB advances	100	1,580,000
Repayment of FHLB advances	(100)	(2,195,000)
Cash dividends on common stock	(27,733)	(23,674)
Cash dividends on preferred stock	(1,573)	(1,719)
Other financing inflows	1,211	1,058
Other financing outflows	(1,167)	(1,655)
Net cash used in financing activities	(8,238)	(140,560)
Net change in cash and cash equivalents	(41,942)	130,828
Cash and cash equivalents, beginning of period	1,003,875	646,853
Cash and cash equivalents, end of period	$ 961,933	$ 777,681

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Basis of Presentation

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

Basis of Presentation 

United’s accounting and financial reporting policies conform to GAAP and reporting guidelines of banking regulatory authorities. The accompanying interim consolidated financial statements have not been audited. All material intercompany balances and transactions have been eliminated. A more detailed description of United’s accounting policies is included in its 2023 10-K.

In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in United’s 2023 10-K.

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Accounting Standards Updates and Recently Adopted Standards

3 Months Ended

Mar. 31, 2024

Accounting Changes and Error Corrections [Abstract]

Accounting Standards Updates and Recently Adopted Standards

Accounting Standards Updates and Recently Adopted Standards

Recently Adopted Standards

In March 2023, the FASB issued ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. The update broadens the application of PAM and related disclosures to tax equity investments other than LIHTC, providing certain conditions are met. The election to apply PAM must be made on a tax-credit-program by tax-credit-program basis rather than at the reporting entity level or to individual investments. United adopted this update using a modified retrospective transition method as of January 1, 2024, with no impact to shareholders’ equity; thus, no cumulative effect adjustment to retained earnings was recorded.

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Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

The supplemental schedule of significant non-cash investing and financing activities for the three months ended March 31, 2024 and 2023 is as follows.

	Three Months Ended March 31,
(in thousands)	2024		2023
Significant non-cash investing and financing transactions:
Commitments to fund equity investments	$	10,693	$	20,000
Acquisitions:
Assets acquired	—		1,903,930
Liabilities assumed	—		1,597,022
Net assets acquired	—		306,908
Common stock issued and options converted	—		306,461

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Acquisitions

3 Months Ended

Mar. 31, 2024

Business Combination and Asset Acquisition [Abstract]

Acquisitions

Acquisitions

Acquisition of First Miami

On July 1, 2023, United acquired all of the outstanding common stock of First Miami in a stock transaction. Information related to the fair value of assets and liabilities acquired is included in United’s 2023 10-K. During the first quarter of 2024, within the one-year measurement period related to the acquisition of First Miami, United received additional information regarding the lack of realizability of certain tax credits. As a result, the provisional fair value assigned to acquired other assets was adjusted to $18.8 million, other liabilities was adjusted to $16.9 million and goodwill was adjusted to $24.5 million, which represents a decrease of $2.06 million, a decrease of $726,000 and an increase of $1.34 million, respectively.

Pro forma information - Progress

The following table discloses certain pro forma information as if Progress had been acquired on January 1, 2022. These results combine the historical results of the acquired entity with United’s consolidated statement of income. Adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity; however pro forma financial results presented are not necessarily indicative of what would have occurred had the acquisitions taken place in earlier years.

Merger-related costs related to the Progress acquisition of $7.49 million have been excluded from the three months ended March 31, 2023 pro forma information presented below. The actual results and pro forma information were as follows:

	Three Months Ended March 31, 2023
(in thousands)	Revenue		Net Income
Actual Progress results included in statement of income since acquisition date	$	6,652	$	1,810
Supplemental consolidated pro forma as if Progress had been acquired January 1, 2022	229,541		75,209

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Investment Securities

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

The amortized cost basis, unrealized gains and losses and fair value of HTM debt securities as of the dates indicated are as follows.

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
As of March 31, 2024
U.S. Treasuries	$	19,872	$	—	$	2,093	$	17,779
U.S. Government agencies & GSEs	99,052		—		16,673		82,379
State and political subdivisions	292,236		23		52,802		239,457
Residential MBS, Agency & GSEs	1,360,395		9		223,439		1,136,965
Commercial MBS, Agency & GSEs	678,578		—		124,464		554,114
Supranational entities	15,000		—		2,782		12,218
Total	$	2,465,133	$	32	$	422,253	$	2,042,912
As of December 31, 2023
U.S. Treasuries	$	19,864	$	—	$	1,914	$	17,950
U.S. Government agencies & GSEs	99,052		—		15,689		83,363
State and political subdivisions	292,705		171		50,437		242,439
Residential MBS, Agency & GSEs	1,383,294		24		206,344		1,176,974
Commercial MBS, Agency & GSEs	680,933		—		118,539		562,394
Supranational entities	$	15,000	$	—	$	2,500	$	12,500
Total	$	2,490,848	$	195	$	395,423	$	2,095,620

The amortized cost basis, unrealized gains and losses, and fair value of AFS debt securities as of the dates indicated are presented below.

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
As of March 31, 2024
U.S. Treasuries	$	411,640	$	5	$	12,865	$	398,780
U.S. Government agencies & GSEs	312,408		259		15,241		297,426
State and political subdivisions	181,829		—		18,566		163,263
Residential MBS, Agency & GSEs	1,337,504		250		132,233		1,205,521
Residential MBS, Non-agency	333,045		—		20,673		312,372
Commercial MBS, Agency & GSEs	693,011		100		39,653		653,458
Commercial MBS, Non-agency	20,165		—		542		19,623
Corporate bonds	213,371		130		17,601		195,900
Asset-backed securities	148,738		96		1,778		147,056
Total	$	3,651,711	$	840	$	259,152	$	3,393,399
As of December 31, 2023
U.S. Treasuries	$	398,021	$	39	$	10,711	$	387,349
U.S. Government agencies & GSEs	281,708		269		14,477		267,500
State and political subdivisions	182,546		5		18,502		164,049
Residential MBS, Agency & GSEs	1,315,064		300		125,012		1,190,352
Residential MBS, Non-agency	339,330		—		22,084		317,246
Commercial MBS, Agency & GSEs	656,004		1,073		39,017		618,060
Commercial MBS, Non-agency	24,269		—		675		23,594
Corporate bonds	218,285		64		17,127		201,222
Asset-backed securities	164,728		—		3,016		161,712
Total	$	3,579,955	$	1,750	$	250,621	$	3,331,084

Securities with a carrying value of $2.90 billion and $4.12 billion, respectively, were pledged, primarily to secure public deposits at March 31, 2024 and to secure public deposits and provide contingent liquidity through the Bank Term Funding Program at the Federal Reserve Bank, at December 31, 2023. The Bank Term Funding Program was discontinued in the first quarter of 2024.

The following table summarizes HTM debt securities in an unrealized loss position as of the dates indicated.

	Less than 12 Months				12 Months or More				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
As of March 31, 2024
U.S. Treasuries	$	—	$	—	$	17,779	$	2,093	$	17,779	$	2,093
U.S. Government agencies & GSEs	—		—		82,379		16,673		82,379		16,673
State and political subdivisions	13,297		88		217,862		52,714		231,159		52,802
Residential MBS, Agency & GSEs	355		3		1,135,361		223,436		1,135,716		223,439
Commercial MBS, Agency & GSEs	—		—		554,114		124,464		554,114		124,464
Supranational entities	—		—		12,218		2,782		12,218		2,782
Total unrealized loss position	$	13,652	$	91	$	2,019,713	$	422,162	$	2,033,365	$	422,253
As of December 31, 2023
U.S. Treasuries	$	—	$	—	$	17,951	$	1,914	$	17,951	$	1,914
U.S. Government agencies & GSEs	—		—		83,363		15,689		83,363		15,689
State and political subdivisions	2,986		13		217,547		50,424		220,533		50,437
Residential MBS, Agency & GSEs	311		2		1,175,263		206,342		1,175,574		206,344
Commercial MBS, Agency & GSEs	6,533		115		555,861		118,424		562,394		118,539
Supranational entities	—		—		12,500		2,500		12,500		2,500
Total unrealized loss position	$	9,830	$	130	$	2,062,485	$	395,293	$	2,072,315	$	395,423

The following table summarizes AFS debt securities in an unrealized loss position as of the dates indicated.

	Less than 12 Months				12 Months or More				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
As of March 31, 2024
U.S. Treasuries	$	270,743	$	1,566	$	102,963	$	11,299	$	373,706	$	12,865
U.S. Government agencies & GSEs	40,825		216		177,406		15,025		218,231		15,241
State and political subdivisions	—		—		162,495		18,566		162,495		18,566
Residential MBS, Agency & GSEs	81,990		331		1,086,333		131,902		1,168,323		132,233
Residential MBS, Non-agency	—		—		312,372		20,673		312,372		20,673
Commercial MBS, Agency & GSEs	170,175		724		379,980		38,929		550,155		39,653
Commercial MBS, Non-agency	—		—		19,623		542		19,623		542
Corporate bonds	3,201		49		190,753		17,552		193,954		17,601
Asset-backed securities	3,214		3		118,321		1,775		121,535		1,778
Total unrealized loss position	$	570,148	$	2,889	$	2,550,246	$	256,263	$	3,120,394	$	259,152
As of December 31, 2023
U.S. Treasuries	$	100,369	$	39	$	103,535	$	10,672	$	203,904	$	10,711
U.S. Government agencies & GSEs	41,960		141		184,184		14,336		226,144		14,477
State and political subdivisions	—		—		163,278		18,502		163,278		18,502
Residential MBS, Agency & GSEs	50,014		672		1,108,290		124,340		1,158,304		125,012
Residential MBS, Non-agency	—		—		317,247		22,084		317,247		22,084
Commercial MBS, Agency & GSEs	98,052		2,494		342,390		36,523		440,442		39,017
Commercial MBS, Non-agency	—		—		23,594		675		23,594		675
Corporate bonds	4,016		116		195,329		17,011		199,345		17,127
Asset-backed securities	11,855		53		149,857		2,963		161,712		3,016
Total unrealized loss position	$	306,266	$	3,515	$	2,587,704	$	247,106	$	2,893,970	$	250,621

At March 31, 2024, there were 639 AFS debt securities and 315 HTM debt securities that were in an unrealized loss position. United does not intend to sell nor does it believe it will be required to sell securities in an unrealized loss position prior to the recovery of their amortized cost basis. Unrealized losses at March 31, 2024 were primarily attributable to changes in interest rates.

At March 31, 2024 and December 31, 2023, estimated credit losses and, thus, the related ACL on HTM debt securities were de minimis due to the high credit quality of the portfolio, which included securities issued or guaranteed by U.S. Government agencies, GSEs, high credit quality municipalities and supranational entities. As a result, no ACL was recorded on the HTM portfolio at March 31, 2024 or December 31, 2023. In addition, based on the assessments performed at March 31, 2024 and December 31, 2023, there was no ACL required related to the AFS portfolio.

The following table presents accrued interest receivable on HTM and AFS debt securities, which was excluded from the estimate of credit losses, for the periods indicated.

	Accrued Interest Receivable
(in thousands)	March 31, 2024		December 31, 2023
HTM	$	5,942	$	6,143
AFS	15,050		12,568

The amortized cost and fair value of AFS and HTM debt securities at March 31, 2024, by contractual maturity, are presented in the following table.

	AFS				HTM
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within 1 year:
U.S. Treasuries	$	122,246	$	122,094	$	—	$	—
U.S. Government agencies & GSEs	371		357		—		—
State and political subdivisions	3,147		3,114		1,200		1,194
Corporate bonds	16,878		16,413		—		—
	142,642		141,978		1,200		1,194
1 to 5 years:
U.S. Treasuries	289,394		276,686		19,872		17,779
U.S. Government agencies & GSEs	46,818		43,034		—		—
State and political subdivisions	27,823		25,762		27,197		25,579
Corporate bonds	152,155		140,542		—		—
	516,190		486,024		47,069		43,358
5 to 10 years:
U.S. Government agencies & GSEs	129,138		122,597		72,635		61,301
State and political subdivisions	59,827		51,150		55,664		47,296
Corporate bonds	43,528		38,029		—		—
Supranational entities	—		—		15,000		12,218
	232,493		211,776		143,299		120,815
More than 10 years:
U.S. Government agencies & GSEs	136,081		131,438		26,417		21,078
State and political subdivisions	91,032		83,237		208,175		165,388
Corporate bonds	810		916		—		—
	227,923		215,591		234,592		186,466
Debt securities not due at a single maturity date:
Asset-backed securities	148,738		147,056		—		—
Residential MBS	1,670,549		1,517,893		1,360,395		1,136,965
Commercial MBS	713,176		673,081		678,578		554,114
	2,532,463		2,338,030		2,038,973		1,691,079
Total	$	3,651,711	$	3,393,399	$	2,465,133	$	2,042,912

Expected maturities may differ from contractual maturities because issuers and borrowers may have the right to call or prepay obligations. 

Realized gains and losses are derived using the specific identification method for determining the cost of securities sold. The following table summarizes AFS securities sales activity for the three months ended March 31, 2024 and 2023.

	Three Months Ended March 31,
(in thousands)	2024		2023
Proceeds from sales	$	647	$	380,661
Gross realized gains	$	—	$	1,373
Gross realized losses	—		(3,017)
Securities losses, net	$	—	$	(1,644)
Income tax benefit attributable to sales	$	—	$	(374)

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Loans and Leases and Allowance for Credit Losses

3 Months Ended

Mar. 31, 2024

Receivables [Abstract]

Loans and Leases and Allowance for Credit Losses

Loans and Leases and Allowance for Credit Losses

Major classifications of the loan and lease portfolio (collectively referred to as the “loan portfolio” or “loans”) are summarized as of the dates indicated as follows.

(in thousands)	March 31, 2024		December 31, 2023
Owner occupied CRE	$	3,310,231	$	3,264,051
Income producing CRE	4,206,322		4,263,952
Commercial & industrial	2,404,505		2,411,045
Commercial construction	1,936,074		1,859,538
Equipment financing	1,543,905		1,541,120
Total commercial	13,401,037		13,339,706
Residential mortgage	3,239,687		3,198,928
Home equity	969,020		958,987
Residential construction	257,279		301,650
Manufactured housing	328,121		336,474
Consumer	180,102		181,117
Total loans excluding fair value hedge basis adjustment	18,375,246		18,316,862
Fair value hedge basis adjustment	(402)		1,893
Total loans	18,374,844		18,318,755
Less ACL - loans	(210,934)		(208,071)
Loans, net	$	18,163,910	$	18,110,684

Accrued interest receivable related to loans totaled $67.0 million at both March 31, 2024 and December 31, 2023, and was reported in other assets on the consolidated balance sheets. Accrued interest receivable was excluded from the estimate of credit losses.

At March 31, 2024 and December 31, 2023, the loan portfolio included certain loans specifically pledged to the Federal Reserve as well as loans covered by a blanket lien on qualifying loan types with the FHLB to secure contingent funding sources.

The following table presents the amortized cost of certain loans held for investment that were sold in the periods indicated. The gains on these loan sales were included in noninterest income on the consolidated statements of income.

	Three Months Ended March 31,
(in thousands)	2024		2023
Guaranteed portion of SBA/USDA loans	$	9,388	$	21,770
Equipment financing receivables	28,323		18,703
Total	$	37,711	$	40,473

At March 31, 2024 and December 31, 2023, equipment financing receivables included leases of $74.8 million and $68.9 million, respectively. The components of the net investment in leases, which included both sales-type and direct financing, are presented below.

(in thousands)	March 31, 2024		December 31, 2023
Minimum future lease payments receivable	$	81,882	$	75,198
Estimated residual value of leased equipment	4,737		4,445
Initial direct costs	1,566		1,402
Security deposits	(437)		(413)
Unearned income	(12,978)		(11,711)
Net investment in leases	$	74,770	$	68,921

Minimum future lease payments expected to be received from equipment financing lease contracts as of March 31, 2024 were as follows: 

(in thousands)
Year
Remainder of 2024	$	20,668
2025	23,996
2026	18,243
2027	12,703
2028	5,675
Thereafter	597
Total	$	81,882

Nonaccrual and Past Due Loans

The following table presents the aging of the amortized cost basis in loans by aging category and accrual status as of the dates indicated. Past due status is based on contractual terms of the loan. The accrual of interest is generally discontinued when a loan becomes 90 days past due.

	Accruing
	Current Loans		Loans Past Due
(in thousands)			30 - 59 Days		60 - 89 Days		> 90 Days		Nonaccrual Loans		Total Loans
As of March 31, 2024
Owner occupied CRE	$	3,300,380	$	7,136	$	405	$	—	$	2,310	$	3,310,231
Income producing CRE	4,176,324		812		—		—		29,186		4,206,322
Commercial & industrial	2,371,045		10,707		2,619		—		20,134		2,404,505
Commercial construction	1,932,826		1,311		75		—		1,862		1,936,074
Equipment financing	1,525,225		7,746		2,105		—		8,829		1,543,905
Total commercial	13,305,800		27,712		5,204		—		62,321		13,401,037
Residential mortgage	3,217,293		5,182		643		—		16,569		3,239,687
Home equity	960,734		2,638		664		—		4,984		969,020
Residential construction	255,899		51		85		—		1,244		257,279
Manufactured housing	298,850		7,869		1,605		—		19,797		328,121
Consumer	179,582		428		38		—		54		180,102
Total loans	$	18,218,158	$	43,880	$	8,239	$	—	$	104,969	$	18,375,246
As of December 31, 2023
Owner occupied CRE	$	3,258,015	$	2,942	$	—	$	—	$	3,094	$	3,264,051
Income producing CRE	4,230,140		3,684		—		—		30,128		4,263,952
Commercial & industrial	2,388,076		8,129		1,373		—		13,467		2,411,045
Commercial construction	1,857,660		—		—		—		1,878		1,859,538
Equipment financing	1,522,962		5,895		3,758		—		8,505		1,541,120
Total commercial	13,256,853		20,650		5,131		—		57,072		13,339,706
Residential mortgage	3,179,329		4,622		1,033		—		13,944		3,198,928
Home equity	950,841		4,106		268		—		3,772		958,987
Residential construction	299,230		1,255		221		—		944		301,650
Manufactured housing	304,794		12,622		3,197		—		15,861		336,474
Consumer	180,245		686		92		—		94		181,117
Total loans	$	18,171,292	$	43,941	$	9,942	$	—	$	91,687	$	18,316,862

At March 31, 2024 and December 31, 2023, United had $55.5 million and $48.5 million, respectively, in loans for which repayment is expected to be provided substantially through the operation or sale of the collateral. Estimated credit losses for these loans are based on the net realizable value of the collateral relative to the amortized cost of the loan. The majority of these loans are income producing CRE and commercial and industrial loans.

The following table presents nonaccrual loans held for investment by loan class for the periods indicated. 

	Nonaccrual Loans
	March 31, 2024						December 31, 2023
(in thousands)	With no allowance		With an allowance		Total		With no allowance		With an allowance		Total
Owner occupied CRE	$	1,072	$	1,238	$	2,310	$	2,451	$	643	$	3,094
Income producing CRE	29,153		33		29,186		11,003		19,125		30,128
Commercial & industrial	14,038		6,096		20,134		11,940		1,527		13,467
Commercial construction	1,778		84		1,862		1,784		94		1,878
Equipment financing	92		8,737		8,829		57		8,448		8,505
Total commercial	46,133		16,188		62,321		27,235		29,837		57,072
Residential mortgage	3,368		13,201		16,569		1,836		12,108		13,944
Home equity	1,426		3,558		4,984		1,276		2,496		3,772
Residential construction	781		463		1,244		398		546		944
Manufactured housing	—		19,797		19,797		—		15,861		15,861
Consumer	—		54		54		2		92		94
Total	$	51,708	$	53,261	$	104,969	$	30,747	$	60,940	$	91,687

Risk Ratings 

United categorizes commercial loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, public information, and current industry and economic trends, among other factors. United analyzes loans individually by classifying the loans as to credit risk. This analysis is performed on a continual basis. United uses the following definitions for its risk ratings:

Pass. Loans in this category are considered to have a low probability of default and do not meet the criteria of the risk categories below.

Special Mention. Loans in this category are presently protected from apparent loss; however, weaknesses exist that could cause future impairment, including the deterioration of financial ratios, past due status and questionable management capabilities. These loans require more than the ordinary amount of supervision. Collateral values generally afford adequate coverage, but may not be immediately marketable.

Substandard. These loans are inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged. Specific and well-defined weaknesses exist that may include poor liquidity and deterioration of financial ratios. The loan may be past due and related deposit accounts experiencing overdrafts. There is the distinct possibility that United will sustain some loss if deficiencies are not corrected. If possible, immediate corrective action is taken.

Doubtful. Specific weaknesses characterized as Substandard that are severe enough to make collection in full highly questionable and improbable. There is no reliable secondary source of full repayment.

Loss. Loans categorized as Loss have the same characteristics as Doubtful; however, probability of loss is certain. Loans classified as Loss are charged off.

Consumer Purpose Loans. United applies a pass / fail grading system to all consumer purpose loans. Under this system, loans that are on nonaccrual status, become past due 90 days, or are in bankruptcy and 30 or more days past due are classified as “fail” and all other loans are classified as “pass”. For reporting purposes, loans in these categories that are classified as “fail” are reported as substandard and all other loans are reported as pass.

The following tables present the risk category of term loans and gross charge-offs by vintage year, which is the year of origination or most recent renewal, as of the date indicated (in thousands).

(in thousands)	Term Loans by Origination Year												Revolvers		Revolvers converted to term loans		Total
As of March 31, 2024	2024		2023		2022		2021		2020		Prior
Owner occupied CRE
Pass	$	121,015	$	643,801	$	665,648	$	594,768	$	546,727	$	501,390	$	113,065	$	17,263	$	3,203,677
Special Mention	831		1,837		14,475		13,905		9,131		11,771		—		2,774		54,724
Substandard	1,398		7,750		9,010		15,079		4,137		13,025		1,431		—		51,830
Total owner occupied CRE	$	123,244	$	653,388	$	689,133	$	623,752	$	559,995	$	526,186	$	114,496	$	20,037	$	3,310,231
Current period gross charge-offs	$	—	$	192	$	17	$	—	$	—	$	219	$	—	$	—	$	428
Income producing CRE
Pass	$	157,636	$	570,861	$	929,507	$	835,019	$	681,583	$	668,180	$	51,731	$	12,087	$	3,906,604
Special Mention	27,581		51,055		26,868		21,336		28,963		12,362		49		—		168,214
Substandard	38,515		48,474		9,076		2,460		5,439		27,487		—		53		131,504
Total income producing CRE	$	223,732	$	670,390	$	965,451	$	858,815	$	715,985	$	708,029	$	51,780	$	12,140	$	4,206,322
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	229	$	—	$	—	$	229
Commercial & industrial
Pass	$	97,538	$	559,393	$	398,107	$	275,540	$	122,578	$	197,346	$	578,784	$	11,182	$	2,240,468
Special Mention	10,752		2,434		3,821		6,862		8,432		8,090		34,656		313		75,360
Substandard	685		25,705		3,818		15,705		4,935		4,715		31,806		1,308		88,677
Total commercial & industrial	$	108,975	$	587,532	$	405,746	$	298,107	$	135,945	$	210,151	$	645,246	$	12,803	$	2,404,505
Current period gross charge-offs	$	—	$	3,105	$	409	$	107	$	111	$	532	$	—	$	522	$	4,786
Commercial construction
Pass	$	160,727	$	627,053	$	667,547	$	263,091	$	62,508	$	74,320	$	65,090	$	936	$	1,921,272
Special Mention	4,849		204		118		4		—		—		—		—		5,175
Substandard	1,578		6,030		1,064		30		720		205		—		—		9,627
Total commercial construction	$	167,154	$	633,287	$	668,729	$	263,125	$	63,228	$	74,525	$	65,090	$	936	$	1,936,074
Current period gross charge-offs	$	—	$	—	$	53	$	—	$	—	$	—	$	—	$	—	$	53
Equipment financing
Pass	$	192,828	$	578,878	$	452,224	$	201,010	$	68,999	$	34,265	$	—	$	—	$	1,528,204
Special Mention	—		—		815		2,311		900		674		—		—		4,700
Substandard	—		1,954		4,439		3,189		592		827		—		—		11,001
Total equipment financing	$	192,828	$	580,832	$	457,478	$	206,510	$	70,491	$	35,766	$	—	$	—	$	1,543,905
Current period gross charge-offs	$	—	$	1,219	$	3,457	$	2,199	$	383	$	31	$	—	$	—	$	7,289
Residential mortgage
Pass	$	102,601	$	823,173	$	941,593	$	721,699	$	311,808	$	315,388	$	6	$	3,262	$	3,219,530
Substandard	1,311		2,772		3,431		2,104		1,982		8,276		—		281		20,157
Total residential mortgage	$	103,912	$	825,945	$	945,024	$	723,803	$	313,790	$	323,664	$	6	$	3,543	$	3,239,687
Current period gross charge-offs	$	—	$	—	$	13	$	—	$	—	$	3	$	—	$	—	$	16
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	935,162	$	28,461	$	963,623
Substandard	—		—		—		—		—		—		—		5,397		5,397
Total home equity	$	—	$	—	$	—	$	—	$	—	$	—	$	935,162	$	33,858	$	969,020
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	7	$	7
Residential construction
Pass	$	15,109	$	176,092	$	44,524	$	9,044	$	4,941	$	6,127	$	—	$	92	$	255,929
Substandard	215		963		30		—		7		135		—		—		1,350
Total residential construction	$	15,324	$	177,055	$	44,554	$	9,044	$	4,948	$	6,262	$	—	$	92	$	257,279
Current period gross charge-offs	$	—	$	85	$	—	$	48	$	—	$	—	$	—	$	—	$	133
Manufactured housing
Pass	$	—	$	43,191	$	67,155	$	47,387	$	42,030	$	106,805	$	—	$	—	$	306,568
Substandard	128		2,018		5,055		3,903		3,816		6,633		—		—		21,553
Total consumer	$	128	$	45,209	$	72,210	$	51,290	$	45,846	$	113,438	$	—	$	—	$	328,121
Current period gross charge-offs	$	—	$	234	$	615	$	304	$	149	$	305	$	—	$	—	$	1,607
Consumer
Pass	$	27,459	$	71,656	$	33,669	$	13,687	$	9,517	$	1,309	$	22,067	$	462	$	179,826
Substandard	127		25		54		48		13		9		—		—		276
Total consumer	$	27,586	$	71,681	$	33,723	$	13,735	$	9,530	$	1,318	$	22,067	$	462	$	180,102
Current period gross charge-offs	$	648	$	55	$	86	$	18	$	5	$	—	$	—	$	49	$	861

(in thousands)	Term Loans												Revolvers		Revolvers converted to term loans		Total
As of December 31, 2023	2023		2022		2021		2020		2019		Prior
Owner occupied CRE
Pass	$	643,752	$	681,834	$	615,571	$	553,047	$	202,068	$	337,495	$	117,212	$	18,671	$	3,169,650
Special Mention	2,409		7,877		7,070		4,815		9,221		2,245		100		254		33,991
Substandard	11,128		8,929		15,405		7,104		5,395		8,340		1,421		2,688		60,410
Total owner occupied CRE	$	657,289	$	698,640	$	638,046	$	564,966	$	216,684	$	348,080	$	118,733	$	21,613	$	3,264,051
Current period gross charge-offs	$	207	$	48	$	—	$	819	$	—	$	—	$	—	$	—	$	1,074
Income producing CRE
Pass	$	661,093	$	931,559	$	851,529	$	750,415	$	302,845	$	419,111	$	50,659	$	13,247	$	3,980,458
Special Mention	48,358		26,751		18,989		25,964		6,387		6,173		—		—		132,622
Substandard	68,032		9,998		2,523		21,037		28,877		20,351		—		54		150,872
Total income producing CRE	$	777,483	$	968,308	$	873,041	$	797,416	$	338,109	$	445,635	$	50,659	$	13,301	$	4,263,952
Current period gross charge-offs	$	3,033	$	2,534	$	—	$	—	$	—	$	2,291	$	—	$	—	$	7,858
Commercial & industrial
Pass	$	610,288	$	425,626	$	299,170	$	130,586	$	82,710	$	130,190	$	581,871	$	13,332	$	2,273,773
Special Mention	6,459		2,068		472		5,430		5,473		718		14,861		274		35,755
Substandard	10,906		5,713		22,635		8,557		4,499		1,610		46,282		1,315		101,517
Total commercial & industrial	$	627,653	$	433,407	$	322,277	$	144,573	$	92,682	$	132,518	$	643,014	$	14,921	$	2,411,045
Current period gross charge-offs	$	5,999	$	1,627	$	13,153	$	2,377	$	400	$	157	$	—	$	1,825	$	25,538
Commercial construction
Pass	$	665,792	$	638,761	$	293,276	$	95,046	$	59,471	$	24,698	$	62,370	$	966	$	1,840,380
Special Mention	28		124		6		—		—		—		—		—		158
Substandard	16,253		1,784		31		723		127		82		—		—		19,000
Total commercial construction	$	682,073	$	640,669	$	293,313	$	95,769	$	59,598	$	24,780	$	62,370	$	966	$	1,859,538
Current period gross charge-offs	$	—	$	60	$	—	$	—	$	—	$	—	$	—	$	—	$	60
Equipment financing
Pass	$	673,201	$	496,336	$	233,422	$	83,507	$	41,053	$	3,722	$	—	$	—	$	1,531,241
Substandard	1,471		4,141		2,487		960		817		3		—		—		9,879
Total equipment financing	$	674,672	$	500,477	$	235,909	$	84,467	$	41,870	$	3,725	$	—	$	—	$	1,541,120
Current period gross charge-offs	$	474	$	10,902	$	9,764	$	1,960	$	786	$	320	$	—	$	—	$	24,206
Residential mortgage
Pass	$	839,825	$	955,592	$	734,078	$	318,886	$	84,736	$	245,648	$	6	$	3,415	$	3,182,186
Substandard	2,001		3,078		2,715		1,074		1,331		6,295		—		248		16,742
Total residential mortgage	$	841,826	$	958,670	$	736,793	$	319,960	$	86,067	$	251,943	$	6	$	3,663	$	3,198,928
Current period gross charge-offs	$	—	$	51	$	—	$	—	$	—	$	38	$	—	$	—	$	89
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	926,596	$	28,412	$	955,008
Substandard	—		—		—		—		—		—		—		3,979		3,979
Total home equity	$	—	$	—	$	—	$	—	$	—	$	—	$	926,596	$	32,391	$	958,987
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	167	$	167
Residential construction
Pass	$	208,798	$	70,011	$	9,827	$	5,201	$	1,046	$	5,614	$	—	$	93	$	300,590
Substandard	878		31		—		6		38		107		—		—		1,060
Total residential construction	$	209,676	$	70,042	$	9,827	$	5,207	$	1,084	$	5,721	$	—	$	93	$	301,650
Current period gross charge-offs	$	—	$	1,111	$	—	$	—	$	—	$	—	$	—	$	—	$	1,111
Manufactured housing
Pass	$	45,065	$	69,424	$	48,814	$	43,735	$	31,321	$	80,284	$	—	$	—	$	318,643
Substandard	1,078		4,665		3,601		3,020		1,291		4,176		—		—		17,831
Total consumer	$	46,143	$	74,089	$	52,415	$	46,755	$	32,612	$	84,460	$	—	$	—	$	336,474
Current period gross charge-offs	$	38	$	1,503	$	985	$	419	$	279	$	690	$	—	$	—	$	3,914
Consumer
Pass	$	86,142	$	39,593	$	16,191	$	10,350	$	1,212	$	623	$	26,239	$	534	$	180,884
Substandard	50		55		53		25		5		13		32		—		233
Total consumer	$	86,192	$	39,648	$	16,244	$	10,375	$	1,217	$	636	$	26,271	$	534	$	181,117
Current period gross charge-offs	$	3,245	$	241	$	233	$	38	$	15	$	1	$	5	$	204	$	3,982

Modifications to Borrowers Experiencing Financial Difficulty

The period-end amortized cost and additional information regarding the modified terms of loans modified under the terms of a FDM during the three months ended March 31, 2024 and 2023 are presented in the following tables.

Three Months Ended March 31, 2024
	New FDMs				Defaults within 12 months of modification
(in thousands)	Amortized Cost		% of Total Class of Receivable
Owner occupied CRE	$	1,950	0.1	%	$	—
Income producing CRE	28,540		0.7		—
Commercial & industrial	6,575		0.3		—
Equipment financing	1,393		0.1		228
Residential mortgage	1,228		—		—
Residential construction	100		—		—
Manufactured housing	128		—		—
Consumer	125		0.1		—
Total	$	40,039	0.2		$	228

Three Months Ended March 31, 2024
New FDMs
(dollars in thousands)			Weighted Average Modification
Extension
Owner occupied CRE	$	243	1 year
Commercial & industrial	6,117		7 months
Residential mortgage	27		1 year
Consumer	125		5 months
Total	6,512
Payment Delay
Owner occupied CRE (1)	266		N/A
Income producing CRE	28,540		1 year
Commercial & industrial (1)	179		6 months
Residential construction	100		6 months
Total	29,085
Payment Delay and Extension
Commercial & industrial	279		Payment delay: 4 months; Extension: 3 years
Equipment financing	1,393		Extension and payment delay: 7 months
Total	1,672
Rate Reduction and Extension
Residential mortgage	1,201		Rate reduction: 444 basis points; Extension: 2 years
Manufactured housing	128		Rate reduction: 624 basis points; Extension: 6 years
Total	1,329
Rate Reduction and Payment Delay
Owner occupied CRE	1,441		Rate reduction: 75 basis points; Payment delay: 6 months
Total	$	40,039

(1) Payment delay FDMs in bankruptcy status are excluded from the weighted average payment delay calculation.

Three Months Ended March 31, 2023
	New FDMs										Defaults within 12 months of modification
	Amortized Cost by Type of Modification
(in thousands)	Extension		Payment Delay		Rate Reduction & Extension		Total		% of Total Class of Receivable
Commercial & industrial	$	—	$	6,170	$	—	$	6,170	0.3	%	$	—
Equipment financing	5,211		—		—		5,211		0.4		—
Residential mortgage	—		—		57		57		—		—
Manufactured housing	—		—		152		152		—		—
Total	$	5,211	$	6,170	$	209	$	11,590	0.1		$	—

During the three months ended March 31, 2023, equipment financing FDMs typically consist of one or more three-month extensions beyond the original maturity date.

For the three months ended March 31, 2023, commercial and industrial payment delay modifications consisted of one or more three-month periods during which principal payments were deferred but interest payments continued to be paid.

During the three months ended March 31, 2023, FDMs categorized as rate reduction and extensions in the residential mortgage and manufactured housing categories resulted in a decrease in the weighted average interest rate on these FDMs of 621 bps and extended the weighted average maturity by 6.5 years.

Allowance for Credit Losses

The ACL for loans represents management’s estimate of life of loan credit losses in the portfolio as of the end of the period. The ACL related to unfunded commitments is included in other liabilities in the consolidated balance sheet.

At both March 31, 2024 and December 31, 2023, United used a one-year reasonable and supportable forecast period. Expected credit losses were estimated using a regression model for each segment based on historical data from peer banks combined with a third party vendor’s baseline economic forecast to predict the change in credit losses. These estimates were then combined with a starting value that was based on United’s recent charge-off experience to produce an expected default rate, with the results subject to a floor.

In the case of commercial construction, income producing CRE, owner occupied CRE, multifamily loans (included in income producing CRE) and commercial & industrial loans, at March 31, 2024, the expected default rate was adjusted by a model overlay based on expectations of future performance.

At March 31, 2024, the third party vendor’s baseline forecast was similar to the forecast at December 31, 2023. At March 31, 2024 United applied qualitative adjustments to the model output for the residential mortgage portfolio to account for the ongoing performance stability of the portfolio. United also applied qualitative adjustments to the equipment finance portfolio due to an elevated default rate that resulted from a higher level of recent charge-offs that was mostly coming from the long-haul trucking equipment segment, a small portion of the portfolio deemed not representative of the entire equipment financing portfolio.

For periods beyond the reasonable and supportable forecast period of one year, United reverted to historical credit loss information on a straight line basis over two years. For most collateral types, United reverted to through-the-cycle average default rates using peer data from 2000 to 2017. For loans secured by residential mortgages and manufactured housing, the peer data was adjusted for changes in lending practices designed to mitigate the magnitude of losses observed during the 2008 mortgage crisis.

The following table presents the balance and activity in the ACL by portfolio segment for the periods indicated.

	Three Months Ended March 31, 2024
(in thousands)	Beginning Balance		Charge-Offs		Recoveries		Provision		Ending Balance
Owner occupied CRE	$	23,542	$	(428)	$	226	$	(3,682)	$	19,658
Income producing CRE	47,755		(229)		24		(752)		46,798
Commercial & industrial	30,890		(4,786)		880		4,874		31,858
Commercial construction	21,741		(53)		33		(1,698)		20,023
Equipment financing	33,383		(7,289)		927		12,961		39,982
Residential mortgage	28,219		(16)		32		401		28,636
Home equity	9,647		(7)		61		14		9,715
Residential construction	1,833		(133)		14		(185)		1,529
Manufactured housing	10,339		(1,607)		38		3,274		12,044
Consumer	722		(861)		266		564		691
ACL - loans	208,071		(15,409)		2,501		15,771		210,934
ACL - unfunded commitments	16,057		—		—		(2,872)		13,185
Total ACL	$	224,128	$	(15,409)	$	2,501	$	12,899	$	224,119

	Three Months Ended March 31, 2023
(in thousands)	Beginning Balance		Initial ACL - PCD loans (1)		Charge-Offs		Recoveries		Provision		Ending Balance
Owner occupied CRE	$	19,834	$	181	$	(207)	$	117	$	906	$	20,831
Income producing CRE	32,082		307		(2,781)		475		3,524		33,607
Commercial & industrial	23,504		1,358		(898)		673		3,675		28,312
Commercial construction	20,120		39		—		37		1,877		22,073
Equipment financing	23,395		—		(4,027)		652		6,175		26,195
Residential mortgage	20,809		157		(19)		106		3,029		24,082
Home equity	8,707		534		(121)		88		1,129		10,337
Residential construction	2,049		124		—		15		(145)		2,043
Manufactured housing	8,098		—		(654)		26		954		8,424
Consumer	759		4		(817)		251		433		630
ACL - loans	159,357		2,704		(9,524)		2,440		21,557		176,534
ACL - unfunded commitments	21,163		—		—		—		226		21,389
Total ACL	$	180,520	$	2,704	$	(9,524)	$	2,440	$	21,783	$	197,923

(1) Represents the initial ACL related to PCD loans acquired in the Progress transaction.

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Derivatives and Hedging Activities

3 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

The table below presents the fair value of derivative financial instruments, which are included in other assets and other liabilities on the consolidated balance sheet, as of the dates indicated:

	March 31, 2024						December 31, 2023
	Notional Amount		Fair Value				Notional Amount		Fair Value
(in thousands)			Derivative Asset		Derivative Liability				Derivative Asset		Derivative Liability
Derivatives designated as hedging instruments:
Cash flow hedge of subordinated debt	$	100,000	$	13,840	$	—	$	100,000	$	13,168	$	—
Cash flow hedges of trust preferred securities	20,000		—		—		20,000		—		—
Fair value hedges of AFS debt securities	649,520		—		—		655,511		—		—
Fair value hedges of loans	1,650,000		—		—		150,000		—		—
Total	2,419,520		13,840		—		925,511		13,168		—
Derivatives not designated as hedging instruments:
Customer derivative positions	1,173,714		1,358		77,635		1,177,275		3,461		68,384
Dealer offsets to customer derivative positions	1,173,714		25,588		1,337		1,197,364		23,061		4,597
Risk participations	89,811		1		6		90,597		1		8
Mortgage banking - loan commitments	67,260		1,630		—		48,452		1,089		—
Mortgage banking - forward sales commitment	105,251		89		180		81,671		20		658
Bifurcated embedded derivatives	51,935		10,696		—		51,935		9,552		—
Dealer offsets to bifurcated embedded derivatives	51,935		—		12,255		51,935		—		11,164
Total	2,713,620		39,362		91,413		2,699,229		37,184		84,811
Total derivatives	$	5,133,140	$	53,202	$	91,413	$	3,624,740	$	50,352	$	84,811
Total gross derivative instruments			$	53,202	$	91,413			$	50,352	$	84,811
Less: Amounts subject to master netting agreements			(1,444)		(1,444)				(4,683)		(4,683)
Less: Cash collateral received/pledged			(39,841)		(12,593)				(33,921)		(11,330)
Net amount			$	11,917	$	77,376			$	11,748	$	68,798

United clears certain derivatives centrally through the CME. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives’ exposure rather than as collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero.

Hedging Derivatives

Cash Flow Hedges of Interest Rate Risk 

As of March 31, 2024 and December 31, 2023, United utilized interest rate caps and swaps to hedge the variability of cash flows due to changes in interest rates on certain of its variable-rate subordinated debt and trust preferred securities. Gains and losses related to changes in fair value are reclassified into earnings in the periods the hedged forecasted transactions occur. Losses representing amortization of the premium recorded on cash flow hedges, which is a component excluded from the assessment of effectiveness, are recognized in earnings on a straight-line basis in the same caption as the hedged item over the term of the hedge. Over the next twelve months, United expects to reclassify $5.32 million of gains from AOCI into earnings related to these agreements.

Fair Value Hedges of Interest Rate Risk 

United uses interest rate derivatives to manage its exposure to changes in fair value attributable to changes in interest rates on certain of its fixed-rate financial instruments. For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. United includes the gain or loss on the hedged items in the same income statement line item as the offsetting loss or gain on the related derivatives. During the first quarter of 2024, United entered into additional fair value hedges on stated amounts of closed portfolios of loans using the portfolio layer method.

The table below presents the effect of derivatives in hedging relationships, all of which are interest rate contracts, on net interest income for the periods indicated. 

	Affected Income Statement Line Item Increase/(Decrease) to Earnings	Three Months Ended March 31,
(in thousands)		2024		2023
Fair value hedges:
AFS securities:
Amounts related to interest settlements on derivatives		$	2,856	$	—
Gain recognized on derivative		9,462		—
Loss recognized on hedged items		(9,798)		—
Net income recognized on AFS securities fair value hedges	Interest revenue- investment securities	$	2,520	$	—
Loans:
Amounts related to interest settlements on derivatives		1,298		—
Gain recognized on derivatives		2,158		—
Loss recognized on hedged items		(2,295)		—
Net income recognized on loan fair value hedges	Interest revenue - loans, including fees	1,161		—
Cash flow hedges:
Long-term debt (1)	Interest expense- long term debt	$	1,440	$	822

 (1) Includes premium amortization expense excluded from the assessment of hedge effectiveness of $118,000 and $116,000 for the three months ended March 31, 2024 and 2023, respectively.

The table below presents the carrying amount of hedged items and cumulative fair value hedging basis adjustments for the periods presented. All fair value hedges of AFS debt securities and loans at March 31, 2024 and December 31, 2023 were designated under the portfolio layer method.

(in thousands)	March 31, 2024						December 31, 2023
Balance Sheet Location	Carrying Amount		Hedge Accounting Basis Adjustment		Hedged Portfolio Layer		Carrying Amount		Hedge Accounting Basis Adjustment		Hedged Portfolio Layer
Debt securities AFS (1)	$	783,148	$	(14,471)	$	649,520	$	789,908	$	(4,673)	$	655,511
Loans and leases held for investment	5,408,116		(402)		1,650,000		1,017,379		1,893		150,000

(1) Carrying amount for AFS debt securities reflects amortized cost, which excludes the hedge accounting basis adjustment.

Derivatives Not Designated as Hedging Instruments 

Customer derivative positions include swaps, caps, and collars between United and certain commercial loan customers with offsetting positions to dealers under a back-to-back program. In addition, United occasionally enters into credit risk participation agreements with counterparty banks to accept or transfer a portion of the credit risk related to interest rate swaps.

United also has three interest rate swap contracts that are not designated as hedging instruments but are economic hedges of market-linked brokered certificates of deposit. The market-linked brokered certificates of deposit contain embedded derivatives that are bifurcated from the host instruments and are marked to market through earnings. The fair value marks on the market-linked swaps and the bifurcated embedded derivatives tend to move in opposite directions and therefore provide an economic hedge.

In addition, United originates certain residential mortgage loans with the intention of selling these loans. Between the time United enters into an interest-rate lock commitment to originate a residential mortgage loan that is to be held for sale and the time the loan is funded and eventually sold, United is subject to the risk of variability in market prices. United enters into forward sale agreements to mitigate risk and to protect the expected gain on the eventual loan sale. The commitments to originate residential mortgage loans and forward loan sales commitments are freestanding derivative instruments. Fair value adjustments on these derivative instruments are recorded within mortgage loan gains and other related fee income in the consolidated statements of income.

The table below presents the gains and losses recognized in income on derivatives not designated as hedging instruments for the periods indicated. 

	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
			Three Months Ended March 31,
(in thousands)			2024		2023
Customer derivatives and dealer offsets	Other noninterest income		$	(245)	$	367
Bifurcated embedded derivatives and dealer offsets	Other noninterest income		(192)		(533)
Mortgage banking derivatives	Mortgage loan revenue		901		1,227
Risk participations	Other noninterest income		2		(12)
			$	466	$	1,049

Credit-Risk-Related Contingent Features 

United manages its credit exposure on derivatives transactions by entering into a bilateral credit support agreement with each non-customer counterparty. The credit support agreements require collateralization of exposures beyond specified minimum threshold amounts. The details of these agreements, including the minimum thresholds, vary by counterparty.

United’s agreements with each of its derivative counterparties provide that if either party defaults on any of its indebtedness, then it could also be declared in default on its derivative obligations. The agreements with derivative counterparties also include provisions that if not met, could result in United being declared in default. United has agreements with certain of its derivative counterparties that provide that if United fails to maintain its status as a well-capitalized institution or is subject to a prompt corrective action directive, the counterparty could terminate the derivative positions and United would be required to settle its obligations under the agreements. Derivatives that are centrally cleared do not have credit-risk-related features that would require additional collateral if United’s credit rating were downgraded.

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Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The carrying amount of goodwill and other intangible assets as of the dates indicated is summarized below.  

(in thousands)	March 31, 2024		December 31, 2023
Core deposit intangible	$	100,694	$	104,174
Less: accumulated amortization	(40,704)		(40,495)
Net core deposit intangible	59,990		63,679
Customer relationship intangible	8,400		8,400
Less: accumulated amortization	(2,104)		(1,906)
Net customer relationship intangible	6,296		6,494
Total intangibles subject to amortization, net (1)	66,286		70,173
Goodwill	921,253		919,914
Total goodwill and other intangible assets, net	$	987,539	$	990,087

(1) As intangible assets become fully amortized, they are excluded from balances presented.

The following is a summary of changes in the carrying amounts of goodwill: 

	Three Months Ended March 31,
(in thousands)	2024		2023
Balance, beginning of period (1)	$	919,914	$	751,174
Acquisitions	—		145,544
Measurement period adjustment - First Miami (2)	1,339		—
Balance, end of period (1)	$	921,253	$	896,718

(1) Goodwill balances are shown net of accumulated impairment losses of $306 million incurred prior to 2023.

(2) See Note 4 for further details.

The estimated aggregate amortization expense for future periods for finite-lived intangibles is as follows:

(in thousands)
Year
Remainder of 2024	$	10,960
2025	12,774
2026	10,896
2027	9,018
2028	7,236
Thereafter	15,402
Total	$	66,286

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Assets and Liabilities Measured at Fair Value

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value

Assets and Liabilities Measured at Fair Value

Fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering those assumptions, United uses a fair value hierarchy that distinguishes between assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions (unobservable inputs classified within Level 3 of the hierarchy). United has processes in place to review the significant valuation inputs and to reassess how the instruments are classified in the valuation framework.

Fair Value Hierarchy

Level 1 Valuation is based upon quoted prices (unadjusted) in active markets for identical assets or liabilities that United has the ability to access.

Level 2 Valuation is based upon quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals.

Level 3 Valuation is generated from model-based techniques that use at least one significant assumption based on unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity.

In instances when the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

The following is a description of the valuation methodologies used for assets and liabilities recorded at fair value.

Investment Securities

AFS debt securities and equity securities with readily determinable fair values are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include MBS issued by GSEs, municipal bonds, corporate debt securities, asset-backed securities and supranational entity securities and are valued based on observable inputs that include: quoted market prices for similar assets, quoted market prices that are not in an active market, or other inputs that are observable in the market and can be corroborated by observable market data for substantially the full term of the securities. Securities classified as Level 3 include those traded in less liquid markets and are valued based on estimates obtained from broker-dealers that are not directly observable or models which incorporate unobservable inputs.

Deferred Compensation Plan Assets and Liabilities

Included in other assets in the consolidated balance sheet are assets purchased to provide returns mirroring those promised to participants in the employee deferred compensation plan. These assets are mutual funds classified as Level 1. Deferred compensation liabilities, also classified as Level 1, are carried at the fair value of the obligation to the participant, which mirrors the fair value of the invested assets and is included in other liabilities in the consolidated balance sheet. Deferred compensation plan liabilities are unsecured general obligations of United.

Mortgage Loans Held for Sale

United has elected the fair value option for most of its newly originated mortgage loans held for sale in order to reduce certain timing differences and better match changes in fair values of the loans with changes in the value of derivative instruments used to economically hedge them. The fair value of mortgage loans held for sale is determined using quoted prices for a similar asset, adjusted for specific attributes of that loan, and are classified as Level 2.

Derivative Financial Instruments

United uses derivatives to manage interest rate risk. The valuation of these instruments is typically determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. United also uses best effort and mandatory delivery forward loan sale commitments to hedge risk in its mortgage lending business.

United incorporates CVAs as necessary to appropriately reflect the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, United has considered the effect of netting and any applicable credit enhancements, such as collateral postings, thresholds and guarantees.

Management has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy. However, the CVAs associated with these derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. Generally, management’s assessment of the significance of the CVAs has indicated that they are not a significant input to the overall valuation of the derivatives. In cases when management’s assessment indicates that the CVA is a significant input, the related derivative is disclosed as a Level 3 value. In other cases, derivatives are categorized as Level 3 when there is not an observable forward-rate curve available for the duration of the contract.

Other derivatives classified as Level 3 include structured derivatives for which broker quotes, used as a key valuation input, were not observable. Risk participation agreements are classified as Level 3 instruments due to the incorporation of significant Level 3 inputs used to evaluate the probability of funding and the likelihood of customer default. Interest rate lock commitments, which relate to mortgage loan commitments, are categorized as Level 3 instruments as the fair value of these instruments is based on unobservable inputs for commitments that United does not expect to fund.

Servicing Rights for Residential and SBA/USDA Loans

United recognizes servicing rights upon the sale of residential and SBA/USDA loans sold with servicing retained. Management has elected to carry these assets at fair value. Given the nature of these assets, the key valuation inputs are unobservable and management classifies these assets as Level 3.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents United’s assets and liabilities measured at fair value on a recurring basis as of the dates indicated, aggregated by the level in the fair value hierarchy within which those measurements fall.

(in thousands)
March 31, 2024	Level 1		Level 2		Level 3		Total
Assets:
AFS debt securities:
U.S. Treasuries	$	398,780	$	—	$	—	$	398,780
U.S. Government agencies & GSEs	—		297,426		—		297,426
State and political subdivisions	—		163,263		—		163,263
Residential MBS	—		1,517,893		—		1,517,893
Commercial MBS	—		673,081		—		673,081
Corporate bonds	—		193,740		2,160		195,900
Asset-backed securities	—		147,056		—		147,056
Equity securities with readily determinable fair values	4,553		1,787		—		6,340
Mortgage loans held for sale	—		38,140		—		38,140
Deferred compensation plan assets	13,124		—		—		13,124
Servicing rights for SBA/USDA loans	—		—		5,507		5,507
Residential mortgage servicing rights	—		—		37,358		37,358
Derivative financial instruments	—		40,391		12,811		53,202
Total assets	$	416,457	$	3,072,777	$	57,836	$	3,547,070
Liabilities:
Deferred compensation plan liability	$	13,119	$	—	$	—	$	13,119
Derivative financial instruments	—		78,228		13,185		91,413
Total liabilities	$	13,119	$	78,228	$	13,185	$	104,532

(in thousands)
December 31, 2023	Level 1		Level 2		Level 3		Total
Assets:
AFS debt securities:
U.S. Treasuries	$	387,349	$	—	$	—	$	387,349
U.S. Government agencies & GSEs	—		267,500		—		267,500
State and political subdivisions	—		164,049		—		164,049
Residential MBS	—		1,507,598		—		1,507,598
Commercial MBS	—		641,654		—		641,654
Corporate bonds	—		199,017		2,205		201,222
Asset-backed securities	—		161,712		—		161,712
Equity securities with readily determinable fair values	5,767		1,628		—		7,395
Mortgage loans held for sale	—		33,008		—		33,008
Deferred compensation plan assets	12,791		—		—		12,791
Servicing rights for SBA/USDA loans	—		—		5,444		5,444
Residential mortgage servicing rights	—		—		35,897		35,897
Derivative financial instruments	—		39,710		10,642		50,352
Total assets	$	405,907	$	3,015,876	$	54,188	$	3,475,971
Liabilities:
Deferred compensation plan liability	$	12,838	$	—	$	—	$	12,838
Derivative financial instruments	—		73,639		11,172		84,811
Total liabilities	$	12,838	$	73,639	$	11,172	$	97,649

The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values.

	2024										2023
(in thousands)	Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds		Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds
Three Months Ended March 31,
Beginning balance	$	10,642	$	11,172	$	5,444	$	35,897	$	2,205	$	11,513	$	12,840	$	5,188	$	36,559	$	2,212
Business combinations	—		—		—		—		—		—		—		95		—		—
Additions	1,466		—		170		718		—		—		3		460		632		—
Transfers from Level 2	484		925		—		—		—		—		—		—		—		—
Sales and settlements	(923)		—		(241)		(760)		—		(11)		—		(220)		(452)		—
Fair value adjustments included in OCI	—		—		—		—		(45)		—		—		—		—		15
Fair value adjustments included in earnings	1,142		1,088		134		1,503		—		(154)		(1,648)		766		(658)		—
Ending balance	$	12,811	$	13,185	$	5,507	$	37,358	$	2,160	$	11,348	$	11,195	$	6,289	$	36,081	$	2,227

The following table presents quantitative information about significant Level 3 inputs for fair value on a recurring basis as of the dates indicated. 

Level 3 Assets and Liabilities	Valuation Technique	Significant Unobservable Inputs	March 31, 2024			December 31, 2023
			Range	Weighted Average		Range	Weighted Average
SBA/USDA loan servicing rights	Discounted cash flow	Discount rate	3.6% - 25.0%	12.7	%	8.4% - 25.0%	16.2	%
		Prepayment rate	2.0 - 38.0	19.3		3.5 - 37.4	18.5
Residential mortgage servicing rights	Discounted cash flow	Discount rate	10.0 - 12.5	10.1		10.0 - 15.0	10.0
		Prepayment rate	6.5 - 30.0	7.9		6.5 - 29.9	8.0
Corporate bonds	Discounted cash flow	Discount rate	6.6 - 7.2	7.0		6.1 - 6.7	6.5
Derivative assets - mortgage	Internal model	Pull through rate	64.0 - 100	90.5		60.0 - 100	90.5
Derivative assets and liabilities - other	Dealer priced	Dealer priced	N/A	N/A		N/A	N/A

Fair Value Option

United generally records mortgage loans held for sale at fair value under the fair value option. Interest income on these loans is calculated based on the note rate of the loan and is recorded in interest revenue. The following tables present the fair value and outstanding principal balance of loans accounted for under the fair value option, as well as the gain or loss recognized from the change in fair value for the periods indicated.

Mortgage Loans Held for Sale
(in thousands)	March 31, 2024		December 31, 2023
Outstanding principal balance	$	36,951	$	31,788
Fair value	38,140		33,008

Gain (Loss) from Change in Fair Value on Mortgage Loans Held for Sale
Location	Three Months Ended March 31,
(in thousands)	2024		2023
Mortgage loan gains and other related fees	$	(31)	$	231

Changes in fair value were mostly offset by hedging activities. An immaterial portion of these amounts was attributable to changes in instrument-specific credit risk.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

United may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis. These adjustments to fair value usually result from the application of the lower of the amortized cost or fair value accounting or write-downs of individual assets due to impairment. The following table presents the fair value hierarchy and carrying value of assets that were still held as of March 31, 2024 and December 31, 2023, for which a nonrecurring fair value adjustment was recorded during the year-to-date periods presented.

(in thousands)	Level 1		Level 2		Level 3		Total
March 31, 2024
Loans held for investment	$	—	$	—	$	15,579	$	15,579
December 31, 2023
Loans held for investment	$	—	$	—	$	36,984	$	36,984

Loans held for investment that are reported above as being measured at fair value on a nonrecurring basis are generally impaired loans that have either been partially charged off or have specific reserves assigned to them. Nonaccrual loans that are collateral dependent are generally written down to net realizable value, which reflects fair value less the estimated costs to sell. Specific reserves that are established based on appraised value of collateral are considered nonrecurring fair value adjustments as well. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, United records the impaired loan as nonrecurring Level 3.

Assets and Liabilities Not Measured at Fair Value  

For financial instruments that have quoted market prices, those quotes are used to determine fair value. Financial instruments that have no defined maturity, have a remaining maturity of 180 days or less, or reprice frequently to a market rate, are assumed to have a fair value that approximates reported book value, after taking into consideration any applicable credit risk. If no market quotes are available, financial instruments are valued by discounting the expected cash flows using an estimated current market interest rate for the financial instrument. For off-balance sheet derivative instruments, fair value is estimated as the amount that United would receive or pay to terminate the contracts at the reporting date, taking into account the current unrealized gains or losses on open contracts.

Cash and cash equivalents and repurchase agreements have short maturities and therefore the carrying value approximates fair value. Due to the short-term settlement of accrued interest receivable and payable, the carrying amount closely approximates fair value.

Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect the premium or discount on any particular financial instrument that could result from the sale of United’s entire holdings. All estimates are inherently subjective in nature. Changes in assumptions could significantly affect the estimates.

Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets and liabilities that are not considered financial instruments include the mortgage banking operation, brokerage network, deferred income taxes, premises and equipment and goodwill. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

Off-balance sheet instruments (commitments to extend credit and standby letters of credit) for which draws can be reasonably predicted are generally short-term in maturity and are priced at variable rates. Therefore, the estimated fair values associated with these instruments are immaterial.

The carrying amount and fair values as of the dates indicated for other financial instruments that are not measured at fair value on a recurring basis are as follows.

			Fair Value Level
(in thousands)	Carrying Amount		Level 1		Level 2		Level 3		Total
March 31, 2024
Assets:
HTM debt securities	$	2,465,133	$	17,779	$	2,025,133	$	—	$	2,042,912
Loans and leases, net	18,163,910		—		—		17,622,063		17,622,063
Liabilities:
Deposits	23,332,009		—		23,320,033		—		23,320,033
Long-term debt	324,854		—		—		310,182		310,182
December 31, 2023
Assets:
HTM debt securities	$	2,490,848	$	17,950	$	2,077,670	$	—	$	2,095,620
Loans and leases, net	18,110,684		—		—		17,585,073		17,585,073
Liabilities:
Deposits	23,310,611		—		23,305,223		—		23,305,223
Long-term debt	324,823		—		—		310,060		310,060

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation

United has an equity compensation plan that allows for grants of various share-based compensation. The general terms of the plan include a vesting period (usually four years) with an exercise period not to exceed ten years. Certain options and restricted stock unit awards provide for accelerated vesting if there is a change in control (as defined in the plan document). As of March 31, 2024, the plan covered 2.13 million shares that could be issued pursuant to additional awards granted under the plan.

The table below presents restricted stock unit and option activity for the three months ended March 31, 2024.

	Restricted Stock Unit Awards					Options
	Shares	Weighted- Average Grant- Date Fair Value		Aggregate Intrinsic Value ($000)		Shares	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2023	929,367	$	28.85			406,737	$	21.19
Granted	171,905	28.42				—	—
Released / Exercised	(42,467)	30.67		$	1,175	(55,654)	20.32			$	375
Cancelled	(55,672)	27.55				(2,353)	26.05
Outstanding at March 31, 2024	1,003,133	28.80		26,402		348,730	21.29		5.0	1,755
Vested / Exercisable at March 31, 2024	—	—				348,730	21.29		5.0	1,755

No compensation expense relating to options was included in earnings for the three months ended March 31, 2024 and 2023.

Compensation expense for restricted stock units and performance stock units without market conditions is based on the market value of United’s common stock on the date of grant. Compensation expense for performance stock units with market conditions is based on the grant date per share fair value, which was estimated using the Monte Carlo Simulation valuation model. United recognizes the impact of forfeitures as they occur. The value of restricted stock unit and performance stock unit awards is amortized into expense over the service period.

For the three months ended March 31, 2024 and 2023, expense of $2.22 million and $2.36 million, respectively, was recognized related to restricted stock unit and performance stock unit awards granted to United employees, which was included in salaries and employee benefits expense. In addition, for the three months ended March 31, 2024 and 2023, $183,000 and $122,000, respectively, was recognized in other expense for restricted stock unit awards granted to members of United’s Board of Directors.

A deferred income tax benefit related to stock-based compensation expense of $614,000 and $634,000 was included in the determination of income tax expense for the three months ended March 31, 2024 and 2023, respectively. As of March 31, 2024, there was $22.3 million of unrecognized expense related to non-vested restricted stock unit and performance stock unit awards granted under the plan. That cost is expected to be recognized over a weighted-average period of 2.6 years.

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Reclassifications Out of AOCI

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Reclassifications Out of AOCI

Reclassifications Out of AOCI

The following table presents the details regarding amounts reclassified out of AOCI for the periods indicated. Amounts shown in parentheses reduce earnings.

(in thousands)
Details about AOCI Components	Three Months Ended March 31,				Affected Line Item in the Statement Where Net Income is Presented
	2024		2023
Realized losses on AFS securities:
	$	—	$	(1,644)	Securities losses, net
	—		374		Income tax expense
	$	—	$	(1,270)	Net of tax
Amortization of unrealized losses on HTM securities transferred from AFS:
	$	(2,063)	$	(2,968)	Investment securities interest revenue
	493		720		Income tax expense
	$	(1,570)	$	(2,248)	Net of tax
Reclassifications related to derivative instruments accounted for as cash flow hedges:
Interest rate contracts	$	1,440	$	822	Long-term debt interest expense
	(368)		(210)		Income tax expense
	$	1,072	$	612	Net of tax
Amortization of defined benefit pension plan net periodic pension cost components:
Prior service cost	$	(44)	$	(61)	Salaries and employee benefits expense
	11		16		Income tax expense
	$	(33)	$	(45)	Net of tax
Total reclassifications for the period	$	(531)	$	(2,951)	Net of tax

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Earnings Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the periods indicated.

	Three Months Ended March 31,
(in thousands, except per share data)	2024		2023
Net income	$	62,631	$	62,300
Dividends on preferred stock	(1,573)		(1,719)
Earnings allocated to participating securities	(345)		(339)
Net income available to common shareholders	$	60,713	$	60,242
Weighted average shares outstanding:
Basic	119,662		115,451
Effect of dilutive securities:
Stock options	81		233
Restricted stock units	—		31
Diluted	119,743		115,715
Net income per common share:
Basic	$	0.51	$	0.52
Diluted	$	0.51	$	0.52

At March 31, 2024, United excluded from the computation of earnings per share 984 potentially dilutive shares of common stock issuable upon exercise of stock options because of their antidilutive effect. At March 31, 2023, United had no potentially dilutive instruments outstanding that were not included in the computation.

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Regulatory Matters

3 Months Ended

Mar. 31, 2024

Regulatory Capital Requirements Under Banking Regulations [Abstract]

Regulatory Matters

Regulatory Matters

As of March 31, 2024, United and the Bank were categorized as well-capitalized under the regulatory requirements in effect at that time. To be categorized as well-capitalized, United and the Bank must have exceeded the well-capitalized guideline ratios in effect at the time, as set forth in the table below, and have met certain other requirements. Management believes that United and the Bank exceeded all well-capitalized requirements at March 31, 2024, and there have been no conditions or events since quarter-end that would change the status of well-capitalized.

Regulatory capital ratios at March 31, 2024 and December 31, 2023, along with the minimum amounts required for capital adequacy purposes and to be well-capitalized under regulatory requirements in effect at such times, are presented below for United and the Bank:

					United Community Banks, Inc. (Consolidated)						United Community Bank
(dollars in thousands)	Minimum (1)		Well- Capitalized		March 31, 2024			December 31, 2023			March 31, 2024			December 31, 2023
Risk-based ratios:
CET1 capital	4.5	%	6.5	%	12.39		%	12.16		%	12.60		%	12.22		%
Tier 1 capital	6.0		8.0		12.83			12.60			12.60			12.22
Total capital	8.0		10.0		14.64			14.49			13.63			13.23
Leverage ratio	4.0		5.0		9.69			9.47			9.50			9.17
CET1 capital					$	2,468,825		$	2,432,518		$	2,502,765		$	2,435,962
Tier 1 capital					2,557,091			2,520,784			2,502,765			2,435,962
Total capital					2,917,664			2,898,474			2,707,793			2,638,009
Risk-weighted assets					19,933,869			20,007,236			19,861,459			19,933,429
Average total assets for the leverage ratio					26,400,773			26,621,561			26,351,912			26,563,946

(1) As of March 31, 2024 and December 31, 2023 the additional capital conservation buffer in effect was 2.50%

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

United is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheet. The contract amounts of these instruments reflect the extent of involvement United has in particular classes of financial instruments. The exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and letters of credit written is represented by the contractual amount of these instruments. United uses the same credit policies in making commitments and conditional obligations as it uses for underwriting on-balance sheet instruments. In most cases, collateral or other security is required to support financial instruments with credit risk.

The following table summarizes the contractual amount of off-balance sheet instruments as of the dates indicated.

(in thousands)	March 31, 2024		December 31, 2023
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	4,075,892	$	4,305,483
Letters of credit	66,587		61,808

United, in the normal course of business, is subject to various pending and threatened lawsuits in which claims for monetary damages are asserted. Although it is not possible to predict the outcome of these lawsuits, or the range of any possible loss, management, after consultation with legal counsel, does not anticipate that the ultimate aggregate liability, if any, arising from these lawsuits will have a material adverse effect on United’s financial position or results of operations.

Tax Credit and Certain Equity Investments

United invests in certain LIHTC partnerships throughout its market area as a means of supporting local communities, as well as in entities that promote renewable energy sources. United receives tax credits related to these investments. For certain of the investments, United provides financing during the construction and development phase of the related projects and/or permanent financing upon completion of the project. United has concluded that these partnerships are VIEs of which it is not the primary beneficiary because it does not have the power to direct the activities that most significantly impact the VIEs' financial performance and, therefore, is not required to consolidate these VIEs. United's maximum potential exposure to losses relative to investments in these VIEs is generally limited to the sum of the outstanding investment balance, any future funding commitments and the balance of any related loans to the entity. Loans to these entities are underwritten in substantially the same manner as other loans and are generally secured.

United also has investments in and future funding commitments related to fintech fund limited partnerships, other community development entities and certain other equity method investments. United has concluded that these partnerships are VIEs of which it is not the primary beneficiary because it does not have the power to direct the activities that most significantly impact the VIEs' financial performance and, therefore, is not required to consolidate these VIEs. The risk exposure relating to such commitments is generally limited to the amount invested by United and any future funding commitments.

The following table summarizes, as of the dates indicated, tax credit and certain equity method investments:

(in thousands)	Balance Sheet Location	March 31, 2024		December 31, 2023
Investments in LIHTC:
Carrying amount	Other assets	$	57,728	$	48,867
Amount of future funding commitments included in carrying amount	Other liabilities	22,178		14,176
Lending exposure	Loans and leases held for investment	11,691		803
Renewable energy investments:
Carrying amount	Other assets	4,594		18,631
Amount of future funding commitments (1)	N/A	14,406		14,406
Fintech funds and certain other equity method investments:
Carrying amount	Other assets	34,401		33,720
Amount of future funding commitments not included in carrying amount	N/A	28,313		25,008

(1) Starting in 2024, United no longer records future funding commitments related to its renewable energy investments on the balance sheet. Prior to 2024, these commitments were included in other liabilities.

The following table presents a summary of tax credits and amortization expense associated with the United’s tax credit investment activity. Activity related to renewable energy investments was not material to the financials for the period presented.

(dollars in thousands)	Income Statement Location	Three Months Ended March 31, 2024
Investments in LIHTC:
Income tax credits and other income tax benefits	Income tax expense	$	(1,996)
Amortization expense	Income tax expense	1,831

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net of tax	$ 62,631	$ 62,300

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Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation 

United’s accounting and financial reporting policies conform to GAAP and reporting guidelines of banking regulatory authorities. The accompanying interim consolidated financial statements have not been audited. All material intercompany balances and transactions have been eliminated. A more detailed description of United’s accounting policies is included in its 2023 10-K.

In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in United’s 2023 10-K.

Recently Adopted Standards and Accounting Standards Updates Issued But Not Yet Adopted

Recently Adopted Standards

In March 2023, the FASB issued ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. The update broadens the application of PAM and related disclosures to tax equity investments other than LIHTC, providing certain conditions are met. The election to apply PAM must be made on a tax-credit-program by tax-credit-program basis rather than at the reporting entity level or to individual investments. United adopted this update using a modified retrospective transition method as of January 1, 2024, with no impact to shareholders’ equity; thus, no cumulative effect adjustment to retained earnings was recorded.

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Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Schedule of Noncash Investing and Financing Activities

The supplemental schedule of significant non-cash investing and financing activities for the three months ended March 31, 2024 and 2023 is as follows.

	Three Months Ended March 31,
(in thousands)	2024		2023
Significant non-cash investing and financing transactions:
Commitments to fund equity investments	$	10,693	$	20,000
Acquisitions:
Assets acquired	—		1,903,930
Liabilities assumed	—		1,597,022
Net assets acquired	—		306,908
Common stock issued and options converted	—		306,461

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Acquisitions (Tables)

3 Months Ended

Mar. 31, 2024

Business Combination and Asset Acquisition [Abstract]

Schedule of Actual Results and Pro Forma Information

The actual results and pro forma information were as follows:

	Three Months Ended March 31, 2023
(in thousands)	Revenue		Net Income
Actual Progress results included in statement of income since acquisition date	$	6,652	$	1,810
Supplemental consolidated pro forma as if Progress had been acquired January 1, 2022	229,541		75,209

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Investment Securities (Tables)

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Amortized Cost Basis, Unrealized Gains and Losses and Fair value of HTM Debt Securities

The amortized cost basis, unrealized gains and losses and fair value of HTM debt securities as of the dates indicated are as follows.

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
As of March 31, 2024
U.S. Treasuries	$	19,872	$	—	$	2,093	$	17,779
U.S. Government agencies & GSEs	99,052		—		16,673		82,379
State and political subdivisions	292,236		23		52,802		239,457
Residential MBS, Agency & GSEs	1,360,395		9		223,439		1,136,965
Commercial MBS, Agency & GSEs	678,578		—		124,464		554,114
Supranational entities	15,000		—		2,782		12,218
Total	$	2,465,133	$	32	$	422,253	$	2,042,912
As of December 31, 2023
U.S. Treasuries	$	19,864	$	—	$	1,914	$	17,950
U.S. Government agencies & GSEs	99,052		—		15,689		83,363
State and political subdivisions	292,705		171		50,437		242,439
Residential MBS, Agency & GSEs	1,383,294		24		206,344		1,176,974
Commercial MBS, Agency & GSEs	680,933		—		118,539		562,394
Supranational entities	$	15,000	$	—	$	2,500	$	12,500
Total	$	2,490,848	$	195	$	395,423	$	2,095,620

Schedule of Amortized Cost Basis, Unrealized Gains and Losses and Fair Value of AFS Debt Securities

The amortized cost basis, unrealized gains and losses, and fair value of AFS debt securities as of the dates indicated are presented below.

(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
As of March 31, 2024
U.S. Treasuries	$	411,640	$	5	$	12,865	$	398,780
U.S. Government agencies & GSEs	312,408		259		15,241		297,426
State and political subdivisions	181,829		—		18,566		163,263
Residential MBS, Agency & GSEs	1,337,504		250		132,233		1,205,521
Residential MBS, Non-agency	333,045		—		20,673		312,372
Commercial MBS, Agency & GSEs	693,011		100		39,653		653,458
Commercial MBS, Non-agency	20,165		—		542		19,623
Corporate bonds	213,371		130		17,601		195,900
Asset-backed securities	148,738		96		1,778		147,056
Total	$	3,651,711	$	840	$	259,152	$	3,393,399
As of December 31, 2023
U.S. Treasuries	$	398,021	$	39	$	10,711	$	387,349
U.S. Government agencies & GSEs	281,708		269		14,477		267,500
State and political subdivisions	182,546		5		18,502		164,049
Residential MBS, Agency & GSEs	1,315,064		300		125,012		1,190,352
Residential MBS, Non-agency	339,330		—		22,084		317,246
Commercial MBS, Agency & GSEs	656,004		1,073		39,017		618,060
Commercial MBS, Non-agency	24,269		—		675		23,594
Corporate bonds	218,285		64		17,127		201,222
Asset-backed securities	164,728		—		3,016		161,712
Total	$	3,579,955	$	1,750	$	250,621	$	3,331,084

Schedule of HTM Debt Securities in an Unrealized Loss Position

The following table summarizes HTM debt securities in an unrealized loss position as of the dates indicated.

	Less than 12 Months				12 Months or More				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
As of March 31, 2024
U.S. Treasuries	$	—	$	—	$	17,779	$	2,093	$	17,779	$	2,093
U.S. Government agencies & GSEs	—		—		82,379		16,673		82,379		16,673
State and political subdivisions	13,297		88		217,862		52,714		231,159		52,802
Residential MBS, Agency & GSEs	355		3		1,135,361		223,436		1,135,716		223,439
Commercial MBS, Agency & GSEs	—		—		554,114		124,464		554,114		124,464
Supranational entities	—		—		12,218		2,782		12,218		2,782
Total unrealized loss position	$	13,652	$	91	$	2,019,713	$	422,162	$	2,033,365	$	422,253
As of December 31, 2023
U.S. Treasuries	$	—	$	—	$	17,951	$	1,914	$	17,951	$	1,914
U.S. Government agencies & GSEs	—		—		83,363		15,689		83,363		15,689
State and political subdivisions	2,986		13		217,547		50,424		220,533		50,437
Residential MBS, Agency & GSEs	311		2		1,175,263		206,342		1,175,574		206,344
Commercial MBS, Agency & GSEs	6,533		115		555,861		118,424		562,394		118,539
Supranational entities	—		—		12,500		2,500		12,500		2,500
Total unrealized loss position	$	9,830	$	130	$	2,062,485	$	395,293	$	2,072,315	$	395,423

Schedule of AFS Debt Securities in an Unrealized Loss Position

The following table summarizes AFS debt securities in an unrealized loss position as of the dates indicated.

	Less than 12 Months				12 Months or More				Total
(in thousands)	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
As of March 31, 2024
U.S. Treasuries	$	270,743	$	1,566	$	102,963	$	11,299	$	373,706	$	12,865
U.S. Government agencies & GSEs	40,825		216		177,406		15,025		218,231		15,241
State and political subdivisions	—		—		162,495		18,566		162,495		18,566
Residential MBS, Agency & GSEs	81,990		331		1,086,333		131,902		1,168,323		132,233
Residential MBS, Non-agency	—		—		312,372		20,673		312,372		20,673
Commercial MBS, Agency & GSEs	170,175		724		379,980		38,929		550,155		39,653
Commercial MBS, Non-agency	—		—		19,623		542		19,623		542
Corporate bonds	3,201		49		190,753		17,552		193,954		17,601
Asset-backed securities	3,214		3		118,321		1,775		121,535		1,778
Total unrealized loss position	$	570,148	$	2,889	$	2,550,246	$	256,263	$	3,120,394	$	259,152
As of December 31, 2023
U.S. Treasuries	$	100,369	$	39	$	103,535	$	10,672	$	203,904	$	10,711
U.S. Government agencies & GSEs	41,960		141		184,184		14,336		226,144		14,477
State and political subdivisions	—		—		163,278		18,502		163,278		18,502
Residential MBS, Agency & GSEs	50,014		672		1,108,290		124,340		1,158,304		125,012
Residential MBS, Non-agency	—		—		317,247		22,084		317,247		22,084
Commercial MBS, Agency & GSEs	98,052		2,494		342,390		36,523		440,442		39,017
Commercial MBS, Non-agency	—		—		23,594		675		23,594		675
Corporate bonds	4,016		116		195,329		17,011		199,345		17,127
Asset-backed securities	11,855		53		149,857		2,963		161,712		3,016
Total unrealized loss position	$	306,266	$	3,515	$	2,587,704	$	247,106	$	2,893,970	$	250,621

Schedule of Accrued Interest Receivable

The following table presents accrued interest receivable on HTM and AFS debt securities, which was excluded from the estimate of credit losses, for the periods indicated.

	Accrued Interest Receivable
(in thousands)	March 31, 2024		December 31, 2023
HTM	$	5,942	$	6,143
AFS	15,050		12,568

Schedule of Amortized Cost and Fair Value of AFS and HTM Securities by Contractual Maturity

The amortized cost and fair value of AFS and HTM debt securities at March 31, 2024, by contractual maturity, are presented in the following table.

	AFS				HTM
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within 1 year:
U.S. Treasuries	$	122,246	$	122,094	$	—	$	—
U.S. Government agencies & GSEs	371		357		—		—
State and political subdivisions	3,147		3,114		1,200		1,194
Corporate bonds	16,878		16,413		—		—
	142,642		141,978		1,200		1,194
1 to 5 years:
U.S. Treasuries	289,394		276,686		19,872		17,779
U.S. Government agencies & GSEs	46,818		43,034		—		—
State and political subdivisions	27,823		25,762		27,197		25,579
Corporate bonds	152,155		140,542		—		—
	516,190		486,024		47,069		43,358
5 to 10 years:
U.S. Government agencies & GSEs	129,138		122,597		72,635		61,301
State and political subdivisions	59,827		51,150		55,664		47,296
Corporate bonds	43,528		38,029		—		—
Supranational entities	—		—		15,000		12,218
	232,493		211,776		143,299		120,815
More than 10 years:
U.S. Government agencies & GSEs	136,081		131,438		26,417		21,078
State and political subdivisions	91,032		83,237		208,175		165,388
Corporate bonds	810		916		—		—
	227,923		215,591		234,592		186,466
Debt securities not due at a single maturity date:
Asset-backed securities	148,738		147,056		—		—
Residential MBS	1,670,549		1,517,893		1,360,395		1,136,965
Commercial MBS	713,176		673,081		678,578		554,114
	2,532,463		2,338,030		2,038,973		1,691,079
Total	$	3,651,711	$	3,393,399	$	2,465,133	$	2,042,912

Schedule of AFS Securities Sales Activity

The following table summarizes AFS securities sales activity for the three months ended March 31, 2024 and 2023.

	Three Months Ended March 31,
(in thousands)	2024		2023
Proceeds from sales	$	647	$	380,661
Gross realized gains	$	—	$	1,373
Gross realized losses	—		(3,017)
Securities losses, net	$	—	$	(1,644)
Income tax benefit attributable to sales	$	—	$	(374)

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Loans and Leases and Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2024

Receivables [Abstract]

Schedule of Major Classifications of Loan Portfolio

Major classifications of the loan and lease portfolio (collectively referred to as the “loan portfolio” or “loans”) are summarized as of the dates indicated as follows.

(in thousands)	March 31, 2024		December 31, 2023
Owner occupied CRE	$	3,310,231	$	3,264,051
Income producing CRE	4,206,322		4,263,952
Commercial & industrial	2,404,505		2,411,045
Commercial construction	1,936,074		1,859,538
Equipment financing	1,543,905		1,541,120
Total commercial	13,401,037		13,339,706
Residential mortgage	3,239,687		3,198,928
Home equity	969,020		958,987
Residential construction	257,279		301,650
Manufactured housing	328,121		336,474
Consumer	180,102		181,117
Total loans excluding fair value hedge basis adjustment	18,375,246		18,316,862
Fair value hedge basis adjustment	(402)		1,893
Total loans	18,374,844		18,318,755
Less ACL - loans	(210,934)		(208,071)
Loans, net	$	18,163,910	$	18,110,684

Schedule of Loans Held for Investment Sold

The following table presents the amortized cost of certain loans held for investment that were sold in the periods indicated. The gains on these loan sales were included in noninterest income on the consolidated statements of income.

	Three Months Ended March 31,
(in thousands)	2024		2023
Guaranteed portion of SBA/USDA loans	$	9,388	$	21,770
Equipment financing receivables	28,323		18,703
Total	$	37,711	$	40,473

Schedule of Components of Net Investment in Leases

At March 31, 2024 and December 31, 2023, equipment financing receivables included leases of $74.8 million and $68.9 million, respectively. The components of the net investment in leases, which included both sales-type and direct financing, are presented below.

(in thousands)	March 31, 2024		December 31, 2023
Minimum future lease payments receivable	$	81,882	$	75,198
Estimated residual value of leased equipment	4,737		4,445
Initial direct costs	1,566		1,402
Security deposits	(437)		(413)
Unearned income	(12,978)		(11,711)
Net investment in leases	$	74,770	$	68,921

Schedule of Minimum Future Lease Payments Expected to be Received from Equipment Financing Lease Contracts

Minimum future lease payments expected to be received from equipment financing lease contracts as of March 31, 2024 were as follows: 

(in thousands)
Year
Remainder of 2024	$	20,668
2025	23,996
2026	18,243
2027	12,703
2028	5,675
Thereafter	597
Total	$	81,882

Schedule of Loans by Aging Category, Accrual Status and Days Past Due Category

The following table presents the aging of the amortized cost basis in loans by aging category and accrual status as of the dates indicated. Past due status is based on contractual terms of the loan. The accrual of interest is generally discontinued when a loan becomes 90 days past due.

	Accruing
	Current Loans		Loans Past Due
(in thousands)			30 - 59 Days		60 - 89 Days		> 90 Days		Nonaccrual Loans		Total Loans
As of March 31, 2024
Owner occupied CRE	$	3,300,380	$	7,136	$	405	$	—	$	2,310	$	3,310,231
Income producing CRE	4,176,324		812		—		—		29,186		4,206,322
Commercial & industrial	2,371,045		10,707		2,619		—		20,134		2,404,505
Commercial construction	1,932,826		1,311		75		—		1,862		1,936,074
Equipment financing	1,525,225		7,746		2,105		—		8,829		1,543,905
Total commercial	13,305,800		27,712		5,204		—		62,321		13,401,037
Residential mortgage	3,217,293		5,182		643		—		16,569		3,239,687
Home equity	960,734		2,638		664		—		4,984		969,020
Residential construction	255,899		51		85		—		1,244		257,279
Manufactured housing	298,850		7,869		1,605		—		19,797		328,121
Consumer	179,582		428		38		—		54		180,102
Total loans	$	18,218,158	$	43,880	$	8,239	$	—	$	104,969	$	18,375,246
As of December 31, 2023
Owner occupied CRE	$	3,258,015	$	2,942	$	—	$	—	$	3,094	$	3,264,051
Income producing CRE	4,230,140		3,684		—		—		30,128		4,263,952
Commercial & industrial	2,388,076		8,129		1,373		—		13,467		2,411,045
Commercial construction	1,857,660		—		—		—		1,878		1,859,538
Equipment financing	1,522,962		5,895		3,758		—		8,505		1,541,120
Total commercial	13,256,853		20,650		5,131		—		57,072		13,339,706
Residential mortgage	3,179,329		4,622		1,033		—		13,944		3,198,928
Home equity	950,841		4,106		268		—		3,772		958,987
Residential construction	299,230		1,255		221		—		944		301,650
Manufactured housing	304,794		12,622		3,197		—		15,861		336,474
Consumer	180,245		686		92		—		94		181,117
Total loans	$	18,171,292	$	43,941	$	9,942	$	—	$	91,687	$	18,316,862

Schedule of Nonaccrual Loans by Loan Class

The following table presents nonaccrual loans held for investment by loan class for the periods indicated. 

	Nonaccrual Loans
	March 31, 2024						December 31, 2023
(in thousands)	With no allowance		With an allowance		Total		With no allowance		With an allowance		Total
Owner occupied CRE	$	1,072	$	1,238	$	2,310	$	2,451	$	643	$	3,094
Income producing CRE	29,153		33		29,186		11,003		19,125		30,128
Commercial & industrial	14,038		6,096		20,134		11,940		1,527		13,467
Commercial construction	1,778		84		1,862		1,784		94		1,878
Equipment financing	92		8,737		8,829		57		8,448		8,505
Total commercial	46,133		16,188		62,321		27,235		29,837		57,072
Residential mortgage	3,368		13,201		16,569		1,836		12,108		13,944
Home equity	1,426		3,558		4,984		1,276		2,496		3,772
Residential construction	781		463		1,244		398		546		944
Manufactured housing	—		19,797		19,797		—		15,861		15,861
Consumer	—		54		54		2		92		94
Total	$	51,708	$	53,261	$	104,969	$	30,747	$	60,940	$	91,687

Schedule of Amortized Cost of Loans by Risk Category by Vintage Year

The following tables present the risk category of term loans and gross charge-offs by vintage year, which is the year of origination or most recent renewal, as of the date indicated (in thousands).

(in thousands)	Term Loans by Origination Year												Revolvers		Revolvers converted to term loans		Total
As of March 31, 2024	2024		2023		2022		2021		2020		Prior
Owner occupied CRE
Pass	$	121,015	$	643,801	$	665,648	$	594,768	$	546,727	$	501,390	$	113,065	$	17,263	$	3,203,677
Special Mention	831		1,837		14,475		13,905		9,131		11,771		—		2,774		54,724
Substandard	1,398		7,750		9,010		15,079		4,137		13,025		1,431		—		51,830
Total owner occupied CRE	$	123,244	$	653,388	$	689,133	$	623,752	$	559,995	$	526,186	$	114,496	$	20,037	$	3,310,231
Current period gross charge-offs	$	—	$	192	$	17	$	—	$	—	$	219	$	—	$	—	$	428
Income producing CRE
Pass	$	157,636	$	570,861	$	929,507	$	835,019	$	681,583	$	668,180	$	51,731	$	12,087	$	3,906,604
Special Mention	27,581		51,055		26,868		21,336		28,963		12,362		49		—		168,214
Substandard	38,515		48,474		9,076		2,460		5,439		27,487		—		53		131,504
Total income producing CRE	$	223,732	$	670,390	$	965,451	$	858,815	$	715,985	$	708,029	$	51,780	$	12,140	$	4,206,322
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	229	$	—	$	—	$	229
Commercial & industrial
Pass	$	97,538	$	559,393	$	398,107	$	275,540	$	122,578	$	197,346	$	578,784	$	11,182	$	2,240,468
Special Mention	10,752		2,434		3,821		6,862		8,432		8,090		34,656		313		75,360
Substandard	685		25,705		3,818		15,705		4,935		4,715		31,806		1,308		88,677
Total commercial & industrial	$	108,975	$	587,532	$	405,746	$	298,107	$	135,945	$	210,151	$	645,246	$	12,803	$	2,404,505
Current period gross charge-offs	$	—	$	3,105	$	409	$	107	$	111	$	532	$	—	$	522	$	4,786
Commercial construction
Pass	$	160,727	$	627,053	$	667,547	$	263,091	$	62,508	$	74,320	$	65,090	$	936	$	1,921,272
Special Mention	4,849		204		118		4		—		—		—		—		5,175
Substandard	1,578		6,030		1,064		30		720		205		—		—		9,627
Total commercial construction	$	167,154	$	633,287	$	668,729	$	263,125	$	63,228	$	74,525	$	65,090	$	936	$	1,936,074
Current period gross charge-offs	$	—	$	—	$	53	$	—	$	—	$	—	$	—	$	—	$	53
Equipment financing
Pass	$	192,828	$	578,878	$	452,224	$	201,010	$	68,999	$	34,265	$	—	$	—	$	1,528,204
Special Mention	—		—		815		2,311		900		674		—		—		4,700
Substandard	—		1,954		4,439		3,189		592		827		—		—		11,001
Total equipment financing	$	192,828	$	580,832	$	457,478	$	206,510	$	70,491	$	35,766	$	—	$	—	$	1,543,905
Current period gross charge-offs	$	—	$	1,219	$	3,457	$	2,199	$	383	$	31	$	—	$	—	$	7,289
Residential mortgage
Pass	$	102,601	$	823,173	$	941,593	$	721,699	$	311,808	$	315,388	$	6	$	3,262	$	3,219,530
Substandard	1,311		2,772		3,431		2,104		1,982		8,276		—		281		20,157
Total residential mortgage	$	103,912	$	825,945	$	945,024	$	723,803	$	313,790	$	323,664	$	6	$	3,543	$	3,239,687
Current period gross charge-offs	$	—	$	—	$	13	$	—	$	—	$	3	$	—	$	—	$	16
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	935,162	$	28,461	$	963,623
Substandard	—		—		—		—		—		—		—		5,397		5,397
Total home equity	$	—	$	—	$	—	$	—	$	—	$	—	$	935,162	$	33,858	$	969,020
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	7	$	7
Residential construction
Pass	$	15,109	$	176,092	$	44,524	$	9,044	$	4,941	$	6,127	$	—	$	92	$	255,929
Substandard	215		963		30		—		7		135		—		—		1,350
Total residential construction	$	15,324	$	177,055	$	44,554	$	9,044	$	4,948	$	6,262	$	—	$	92	$	257,279
Current period gross charge-offs	$	—	$	85	$	—	$	48	$	—	$	—	$	—	$	—	$	133
Manufactured housing
Pass	$	—	$	43,191	$	67,155	$	47,387	$	42,030	$	106,805	$	—	$	—	$	306,568
Substandard	128		2,018		5,055		3,903		3,816		6,633		—		—		21,553
Total consumer	$	128	$	45,209	$	72,210	$	51,290	$	45,846	$	113,438	$	—	$	—	$	328,121
Current period gross charge-offs	$	—	$	234	$	615	$	304	$	149	$	305	$	—	$	—	$	1,607
Consumer
Pass	$	27,459	$	71,656	$	33,669	$	13,687	$	9,517	$	1,309	$	22,067	$	462	$	179,826
Substandard	127		25		54		48		13		9		—		—		276
Total consumer	$	27,586	$	71,681	$	33,723	$	13,735	$	9,530	$	1,318	$	22,067	$	462	$	180,102
Current period gross charge-offs	$	648	$	55	$	86	$	18	$	5	$	—	$	—	$	49	$	861

(in thousands)	Term Loans												Revolvers		Revolvers converted to term loans		Total
As of December 31, 2023	2023		2022		2021		2020		2019		Prior
Owner occupied CRE
Pass	$	643,752	$	681,834	$	615,571	$	553,047	$	202,068	$	337,495	$	117,212	$	18,671	$	3,169,650
Special Mention	2,409		7,877		7,070		4,815		9,221		2,245		100		254		33,991
Substandard	11,128		8,929		15,405		7,104		5,395		8,340		1,421		2,688		60,410
Total owner occupied CRE	$	657,289	$	698,640	$	638,046	$	564,966	$	216,684	$	348,080	$	118,733	$	21,613	$	3,264,051
Current period gross charge-offs	$	207	$	48	$	—	$	819	$	—	$	—	$	—	$	—	$	1,074
Income producing CRE
Pass	$	661,093	$	931,559	$	851,529	$	750,415	$	302,845	$	419,111	$	50,659	$	13,247	$	3,980,458
Special Mention	48,358		26,751		18,989		25,964		6,387		6,173		—		—		132,622
Substandard	68,032		9,998		2,523		21,037		28,877		20,351		—		54		150,872
Total income producing CRE	$	777,483	$	968,308	$	873,041	$	797,416	$	338,109	$	445,635	$	50,659	$	13,301	$	4,263,952
Current period gross charge-offs	$	3,033	$	2,534	$	—	$	—	$	—	$	2,291	$	—	$	—	$	7,858
Commercial & industrial
Pass	$	610,288	$	425,626	$	299,170	$	130,586	$	82,710	$	130,190	$	581,871	$	13,332	$	2,273,773
Special Mention	6,459		2,068		472		5,430		5,473		718		14,861		274		35,755
Substandard	10,906		5,713		22,635		8,557		4,499		1,610		46,282		1,315		101,517
Total commercial & industrial	$	627,653	$	433,407	$	322,277	$	144,573	$	92,682	$	132,518	$	643,014	$	14,921	$	2,411,045
Current period gross charge-offs	$	5,999	$	1,627	$	13,153	$	2,377	$	400	$	157	$	—	$	1,825	$	25,538
Commercial construction
Pass	$	665,792	$	638,761	$	293,276	$	95,046	$	59,471	$	24,698	$	62,370	$	966	$	1,840,380
Special Mention	28		124		6		—		—		—		—		—		158
Substandard	16,253		1,784		31		723		127		82		—		—		19,000
Total commercial construction	$	682,073	$	640,669	$	293,313	$	95,769	$	59,598	$	24,780	$	62,370	$	966	$	1,859,538
Current period gross charge-offs	$	—	$	60	$	—	$	—	$	—	$	—	$	—	$	—	$	60
Equipment financing
Pass	$	673,201	$	496,336	$	233,422	$	83,507	$	41,053	$	3,722	$	—	$	—	$	1,531,241
Substandard	1,471		4,141		2,487		960		817		3		—		—		9,879
Total equipment financing	$	674,672	$	500,477	$	235,909	$	84,467	$	41,870	$	3,725	$	—	$	—	$	1,541,120
Current period gross charge-offs	$	474	$	10,902	$	9,764	$	1,960	$	786	$	320	$	—	$	—	$	24,206
Residential mortgage
Pass	$	839,825	$	955,592	$	734,078	$	318,886	$	84,736	$	245,648	$	6	$	3,415	$	3,182,186
Substandard	2,001		3,078		2,715		1,074		1,331		6,295		—		248		16,742
Total residential mortgage	$	841,826	$	958,670	$	736,793	$	319,960	$	86,067	$	251,943	$	6	$	3,663	$	3,198,928
Current period gross charge-offs	$	—	$	51	$	—	$	—	$	—	$	38	$	—	$	—	$	89
Home equity
Pass	$	—	$	—	$	—	$	—	$	—	$	—	$	926,596	$	28,412	$	955,008
Substandard	—		—		—		—		—		—		—		3,979		3,979
Total home equity	$	—	$	—	$	—	$	—	$	—	$	—	$	926,596	$	32,391	$	958,987
Current period gross charge-offs	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	167	$	167
Residential construction
Pass	$	208,798	$	70,011	$	9,827	$	5,201	$	1,046	$	5,614	$	—	$	93	$	300,590
Substandard	878		31		—		6		38		107		—		—		1,060
Total residential construction	$	209,676	$	70,042	$	9,827	$	5,207	$	1,084	$	5,721	$	—	$	93	$	301,650
Current period gross charge-offs	$	—	$	1,111	$	—	$	—	$	—	$	—	$	—	$	—	$	1,111
Manufactured housing
Pass	$	45,065	$	69,424	$	48,814	$	43,735	$	31,321	$	80,284	$	—	$	—	$	318,643
Substandard	1,078		4,665		3,601		3,020		1,291		4,176		—		—		17,831
Total consumer	$	46,143	$	74,089	$	52,415	$	46,755	$	32,612	$	84,460	$	—	$	—	$	336,474
Current period gross charge-offs	$	38	$	1,503	$	985	$	419	$	279	$	690	$	—	$	—	$	3,914
Consumer
Pass	$	86,142	$	39,593	$	16,191	$	10,350	$	1,212	$	623	$	26,239	$	534	$	180,884
Substandard	50		55		53		25		5		13		32		—		233
Total consumer	$	86,192	$	39,648	$	16,244	$	10,375	$	1,217	$	636	$	26,271	$	534	$	181,117
Current period gross charge-offs	$	3,245	$	241	$	233	$	38	$	15	$	1	$	5	$	204	$	3,982

Schedule of Modifications to Borrowers Experiencing Financial Difficulty

The period-end amortized cost and additional information regarding the modified terms of loans modified under the terms of a FDM during the three months ended March 31, 2024 and 2023 are presented in the following tables.

Three Months Ended March 31, 2024
	New FDMs				Defaults within 12 months of modification
(in thousands)	Amortized Cost		% of Total Class of Receivable
Owner occupied CRE	$	1,950	0.1	%	$	—
Income producing CRE	28,540		0.7		—
Commercial & industrial	6,575		0.3		—
Equipment financing	1,393		0.1		228
Residential mortgage	1,228		—		—
Residential construction	100		—		—
Manufactured housing	128		—		—
Consumer	125		0.1		—
Total	$	40,039	0.2		$	228

Three Months Ended March 31, 2024
New FDMs
(dollars in thousands)			Weighted Average Modification
Extension
Owner occupied CRE	$	243	1 year
Commercial & industrial	6,117		7 months
Residential mortgage	27		1 year
Consumer	125		5 months
Total	6,512
Payment Delay
Owner occupied CRE (1)	266		N/A
Income producing CRE	28,540		1 year
Commercial & industrial (1)	179		6 months
Residential construction	100		6 months
Total	29,085
Payment Delay and Extension
Commercial & industrial	279		Payment delay: 4 months; Extension: 3 years
Equipment financing	1,393		Extension and payment delay: 7 months
Total	1,672
Rate Reduction and Extension
Residential mortgage	1,201		Rate reduction: 444 basis points; Extension: 2 years
Manufactured housing	128		Rate reduction: 624 basis points; Extension: 6 years
Total	1,329
Rate Reduction and Payment Delay
Owner occupied CRE	1,441		Rate reduction: 75 basis points; Payment delay: 6 months
Total	$	40,039

(1) Payment delay FDMs in bankruptcy status are excluded from the weighted average payment delay calculation.

Three Months Ended March 31, 2023
	New FDMs										Defaults within 12 months of modification
	Amortized Cost by Type of Modification
(in thousands)	Extension		Payment Delay		Rate Reduction & Extension		Total		% of Total Class of Receivable
Commercial & industrial	$	—	$	6,170	$	—	$	6,170	0.3	%	$	—
Equipment financing	5,211		—		—		5,211		0.4		—
Residential mortgage	—		—		57		57		—		—
Manufactured housing	—		—		152		152		—		—
Total	$	5,211	$	6,170	$	209	$	11,590	0.1		$	—

Schedule of Balance and Activity in the ACL by Portfolio Segment

The following table presents the balance and activity in the ACL by portfolio segment for the periods indicated.

	Three Months Ended March 31, 2024
(in thousands)	Beginning Balance		Charge-Offs		Recoveries		Provision		Ending Balance
Owner occupied CRE	$	23,542	$	(428)	$	226	$	(3,682)	$	19,658
Income producing CRE	47,755		(229)		24		(752)		46,798
Commercial & industrial	30,890		(4,786)		880		4,874		31,858
Commercial construction	21,741		(53)		33		(1,698)		20,023
Equipment financing	33,383		(7,289)		927		12,961		39,982
Residential mortgage	28,219		(16)		32		401		28,636
Home equity	9,647		(7)		61		14		9,715
Residential construction	1,833		(133)		14		(185)		1,529
Manufactured housing	10,339		(1,607)		38		3,274		12,044
Consumer	722		(861)		266		564		691
ACL - loans	208,071		(15,409)		2,501		15,771		210,934
ACL - unfunded commitments	16,057		—		—		(2,872)		13,185
Total ACL	$	224,128	$	(15,409)	$	2,501	$	12,899	$	224,119

	Three Months Ended March 31, 2023
(in thousands)	Beginning Balance		Initial ACL - PCD loans (1)		Charge-Offs		Recoveries		Provision		Ending Balance
Owner occupied CRE	$	19,834	$	181	$	(207)	$	117	$	906	$	20,831
Income producing CRE	32,082		307		(2,781)		475		3,524		33,607
Commercial & industrial	23,504		1,358		(898)		673		3,675		28,312
Commercial construction	20,120		39		—		37		1,877		22,073
Equipment financing	23,395		—		(4,027)		652		6,175		26,195
Residential mortgage	20,809		157		(19)		106		3,029		24,082
Home equity	8,707		534		(121)		88		1,129		10,337
Residential construction	2,049		124		—		15		(145)		2,043
Manufactured housing	8,098		—		(654)		26		954		8,424
Consumer	759		4		(817)		251		433		630
ACL - loans	159,357		2,704		(9,524)		2,440		21,557		176,534
ACL - unfunded commitments	21,163		—		—		—		226		21,389
Total ACL	$	180,520	$	2,704	$	(9,524)	$	2,440	$	21,783	$	197,923

(1) Represents the initial ACL related to PCD loans acquired in the Progress transaction.

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Derivatives and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Value of Derivative Financial Instruments on Consolidated Balance Sheet

The table below presents the fair value of derivative financial instruments, which are included in other assets and other liabilities on the consolidated balance sheet, as of the dates indicated:

	March 31, 2024						December 31, 2023
	Notional Amount		Fair Value				Notional Amount		Fair Value
(in thousands)			Derivative Asset		Derivative Liability				Derivative Asset		Derivative Liability
Derivatives designated as hedging instruments:
Cash flow hedge of subordinated debt	$	100,000	$	13,840	$	—	$	100,000	$	13,168	$	—
Cash flow hedges of trust preferred securities	20,000		—		—		20,000		—		—
Fair value hedges of AFS debt securities	649,520		—		—		655,511		—		—
Fair value hedges of loans	1,650,000		—		—		150,000		—		—
Total	2,419,520		13,840		—		925,511		13,168		—
Derivatives not designated as hedging instruments:
Customer derivative positions	1,173,714		1,358		77,635		1,177,275		3,461		68,384
Dealer offsets to customer derivative positions	1,173,714		25,588		1,337		1,197,364		23,061		4,597
Risk participations	89,811		1		6		90,597		1		8
Mortgage banking - loan commitments	67,260		1,630		—		48,452		1,089		—
Mortgage banking - forward sales commitment	105,251		89		180		81,671		20		658
Bifurcated embedded derivatives	51,935		10,696		—		51,935		9,552		—
Dealer offsets to bifurcated embedded derivatives	51,935		—		12,255		51,935		—		11,164
Total	2,713,620		39,362		91,413		2,699,229		37,184		84,811
Total derivatives	$	5,133,140	$	53,202	$	91,413	$	3,624,740	$	50,352	$	84,811
Total gross derivative instruments			$	53,202	$	91,413			$	50,352	$	84,811
Less: Amounts subject to master netting agreements			(1,444)		(1,444)				(4,683)		(4,683)
Less: Cash collateral received/pledged			(39,841)		(12,593)				(33,921)		(11,330)
Net amount			$	11,917	$	77,376			$	11,748	$	68,798

Schedule of Effect of Derivatives in Hedging Relationships on the Consolidated Statement of Income

The table below presents the effect of derivatives in hedging relationships, all of which are interest rate contracts, on net interest income for the periods indicated. 

	Affected Income Statement Line Item Increase/(Decrease) to Earnings	Three Months Ended March 31,
(in thousands)		2024		2023
Fair value hedges:
AFS securities:
Amounts related to interest settlements on derivatives		$	2,856	$	—
Gain recognized on derivative		9,462		—
Loss recognized on hedged items		(9,798)		—
Net income recognized on AFS securities fair value hedges	Interest revenue- investment securities	$	2,520	$	—
Loans:
Amounts related to interest settlements on derivatives		1,298		—
Gain recognized on derivatives		2,158		—
Loss recognized on hedged items		(2,295)		—
Net income recognized on loan fair value hedges	Interest revenue - loans, including fees	1,161		—
Cash flow hedges:
Long-term debt (1)	Interest expense- long term debt	$	1,440	$	822

 (1) Includes premium amortization expense excluded from the assessment of hedge effectiveness of $118,000 and $116,000 for the three months ended March 31, 2024 and 2023, respectively.

Schedule of Fair Value Hedging Instruments, Carrying Value and Basis Adjustments

The table below presents the carrying amount of hedged items and cumulative fair value hedging basis adjustments for the periods presented. All fair value hedges of AFS debt securities and loans at March 31, 2024 and December 31, 2023 were designated under the portfolio layer method.

(in thousands)	March 31, 2024						December 31, 2023
Balance Sheet Location	Carrying Amount		Hedge Accounting Basis Adjustment		Hedged Portfolio Layer		Carrying Amount		Hedge Accounting Basis Adjustment		Hedged Portfolio Layer
Debt securities AFS (1)	$	783,148	$	(14,471)	$	649,520	$	789,908	$	(4,673)	$	655,511
Loans and leases held for investment	5,408,116		(402)		1,650,000		1,017,379		1,893		150,000

(1) Carrying amount for AFS debt securities reflects amortized cost, which excludes the hedge accounting basis adjustment.

Schedule of Gains and Losses Recognized in Income on Derivatives Not Designated as Hedging Instruments

The table below presents the gains and losses recognized in income on derivatives not designated as hedging instruments for the periods indicated. 

	Location of Gain (Loss) Recognized in Income on Derivatives	Amount of Gain (Loss) Recognized in Income on Derivatives
			Three Months Ended March 31,
(in thousands)			2024		2023
Customer derivatives and dealer offsets	Other noninterest income		$	(245)	$	367
Bifurcated embedded derivatives and dealer offsets	Other noninterest income		(192)		(533)
Mortgage banking derivatives	Mortgage loan revenue		901		1,227
Risk participations	Other noninterest income		2		(12)
			$	466	$	1,049

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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amount of Goodwill and Other Intangible Assets

The carrying amount of goodwill and other intangible assets as of the dates indicated is summarized below.  

(in thousands)	March 31, 2024		December 31, 2023
Core deposit intangible	$	100,694	$	104,174
Less: accumulated amortization	(40,704)		(40,495)
Net core deposit intangible	59,990		63,679
Customer relationship intangible	8,400		8,400
Less: accumulated amortization	(2,104)		(1,906)
Net customer relationship intangible	6,296		6,494
Total intangibles subject to amortization, net (1)	66,286		70,173
Goodwill	921,253		919,914
Total goodwill and other intangible assets, net	$	987,539	$	990,087

(1) As intangible assets become fully amortized, they are excluded from balances presented.

Schedule of Changes in the Carrying Amounts of Goodwill

The following is a summary of changes in the carrying amounts of goodwill: 

	Three Months Ended March 31,
(in thousands)	2024		2023
Balance, beginning of period (1)	$	919,914	$	751,174
Acquisitions	—		145,544
Measurement period adjustment - First Miami (2)	1,339		—
Balance, end of period (1)	$	921,253	$	896,718

(1) Goodwill balances are shown net of accumulated impairment losses of $306 million incurred prior to 2023.

(2) See Note 4 for further details.

Schedule of Estimated Aggregate Amortization Expense for Future Periods

The estimated aggregate amortization expense for future periods for finite-lived intangibles is as follows:

(in thousands)
Year
Remainder of 2024	$	10,960
2025	12,774
2026	10,896
2027	9,018
2028	7,236
Thereafter	15,402
Total	$	66,286

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Assets and Liabilities Measured at Fair Value (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents United’s assets and liabilities measured at fair value on a recurring basis as of the dates indicated, aggregated by the level in the fair value hierarchy within which those measurements fall.

(in thousands)
March 31, 2024	Level 1		Level 2		Level 3		Total
Assets:
AFS debt securities:
U.S. Treasuries	$	398,780	$	—	$	—	$	398,780
U.S. Government agencies & GSEs	—		297,426		—		297,426
State and political subdivisions	—		163,263		—		163,263
Residential MBS	—		1,517,893		—		1,517,893
Commercial MBS	—		673,081		—		673,081
Corporate bonds	—		193,740		2,160		195,900
Asset-backed securities	—		147,056		—		147,056
Equity securities with readily determinable fair values	4,553		1,787		—		6,340
Mortgage loans held for sale	—		38,140		—		38,140
Deferred compensation plan assets	13,124		—		—		13,124
Servicing rights for SBA/USDA loans	—		—		5,507		5,507
Residential mortgage servicing rights	—		—		37,358		37,358
Derivative financial instruments	—		40,391		12,811		53,202
Total assets	$	416,457	$	3,072,777	$	57,836	$	3,547,070
Liabilities:
Deferred compensation plan liability	$	13,119	$	—	$	—	$	13,119
Derivative financial instruments	—		78,228		13,185		91,413
Total liabilities	$	13,119	$	78,228	$	13,185	$	104,532

(in thousands)
December 31, 2023	Level 1		Level 2		Level 3		Total
Assets:
AFS debt securities:
U.S. Treasuries	$	387,349	$	—	$	—	$	387,349
U.S. Government agencies & GSEs	—		267,500		—		267,500
State and political subdivisions	—		164,049		—		164,049
Residential MBS	—		1,507,598		—		1,507,598
Commercial MBS	—		641,654		—		641,654
Corporate bonds	—		199,017		2,205		201,222
Asset-backed securities	—		161,712		—		161,712
Equity securities with readily determinable fair values	5,767		1,628		—		7,395
Mortgage loans held for sale	—		33,008		—		33,008
Deferred compensation plan assets	12,791		—		—		12,791
Servicing rights for SBA/USDA loans	—		—		5,444		5,444
Residential mortgage servicing rights	—		—		35,897		35,897
Derivative financial instruments	—		39,710		10,642		50,352
Total assets	$	405,907	$	3,015,876	$	54,188	$	3,475,971
Liabilities:
Deferred compensation plan liability	$	12,838	$	—	$	—	$	12,838
Derivative financial instruments	—		73,639		11,172		84,811
Total liabilities	$	12,838	$	73,639	$	11,172	$	97,649

Schedule of Reconciliation of Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs

The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values.

	2024										2023
(in thousands)	Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds		Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds
Three Months Ended March 31,
Beginning balance	$	10,642	$	11,172	$	5,444	$	35,897	$	2,205	$	11,513	$	12,840	$	5,188	$	36,559	$	2,212
Business combinations	—		—		—		—		—		—		—		95		—		—
Additions	1,466		—		170		718		—		—		3		460		632		—
Transfers from Level 2	484		925		—		—		—		—		—		—		—		—
Sales and settlements	(923)		—		(241)		(760)		—		(11)		—		(220)		(452)		—
Fair value adjustments included in OCI	—		—		—		—		(45)		—		—		—		—		15
Fair value adjustments included in earnings	1,142		1,088		134		1,503		—		(154)		(1,648)		766		(658)		—
Ending balance	$	12,811	$	13,185	$	5,507	$	37,358	$	2,160	$	11,348	$	11,195	$	6,289	$	36,081	$	2,227

Schedule of Reconciliation of Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs

The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values.

	2024										2023
(in thousands)	Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds		Derivative Assets		Derivative Liabilities		SBA/USDA loan servicing rights		Residential mortgage servicing rights		Corporate Bonds
Three Months Ended March 31,
Beginning balance	$	10,642	$	11,172	$	5,444	$	35,897	$	2,205	$	11,513	$	12,840	$	5,188	$	36,559	$	2,212
Business combinations	—		—		—		—		—		—		—		95		—		—
Additions	1,466		—		170		718		—		—		3		460		632		—
Transfers from Level 2	484		925		—		—		—		—		—		—		—		—
Sales and settlements	(923)		—		(241)		(760)		—		(11)		—		(220)		(452)		—
Fair value adjustments included in OCI	—		—		—		—		(45)		—		—		—		—		15
Fair value adjustments included in earnings	1,142		1,088		134		1,503		—		(154)		(1,648)		766		(658)		—
Ending balance	$	12,811	$	13,185	$	5,507	$	37,358	$	2,160	$	11,348	$	11,195	$	6,289	$	36,081	$	2,227

Schedule of Quantitative Information About Level 3 Fair Value Measurements for Fair Value on a Recurring Basis

The following table presents quantitative information about significant Level 3 inputs for fair value on a recurring basis as of the dates indicated. 

Level 3 Assets and Liabilities	Valuation Technique	Significant Unobservable Inputs	March 31, 2024			December 31, 2023
			Range	Weighted Average		Range	Weighted Average
SBA/USDA loan servicing rights	Discounted cash flow	Discount rate	3.6% - 25.0%	12.7	%	8.4% - 25.0%	16.2	%
		Prepayment rate	2.0 - 38.0	19.3		3.5 - 37.4	18.5
Residential mortgage servicing rights	Discounted cash flow	Discount rate	10.0 - 12.5	10.1		10.0 - 15.0	10.0
		Prepayment rate	6.5 - 30.0	7.9		6.5 - 29.9	8.0
Corporate bonds	Discounted cash flow	Discount rate	6.6 - 7.2	7.0		6.1 - 6.7	6.5
Derivative assets - mortgage	Internal model	Pull through rate	64.0 - 100	90.5		60.0 - 100	90.5
Derivative assets and liabilities - other	Dealer priced	Dealer priced	N/A	N/A		N/A	N/A

Schedule of Loans Held for Sale at Fair Value Under the Fair Value Option

The following tables present the fair value and outstanding principal balance of loans accounted for under the fair value option, as well as the gain or loss recognized from the change in fair value for the periods indicated.

Mortgage Loans Held for Sale
(in thousands)	March 31, 2024		December 31, 2023
Outstanding principal balance	$	36,951	$	31,788
Fair value	38,140		33,008

Gain (Loss) from Change in Fair Value on Mortgage Loans Held for Sale
Location	Three Months Ended March 31,
(in thousands)	2024		2023
Mortgage loan gains and other related fees	$	(31)	$	231

Schedule of Presentation of Assets Measured at Fair Value on Nonrecurring Basis

The following table presents the fair value hierarchy and carrying value of assets that were still held as of March 31, 2024 and December 31, 2023, for which a nonrecurring fair value adjustment was recorded during the year-to-date periods presented.

(in thousands)	Level 1		Level 2		Level 3		Total
March 31, 2024
Loans held for investment	$	—	$	—	$	15,579	$	15,579
December 31, 2023
Loans held for investment	$	—	$	—	$	36,984	$	36,984

Schedule of Carrying Amount and Fair Values for Other Financial Instruments that are not Measured at Fair Value on a Recurring Basis

The carrying amount and fair values as of the dates indicated for other financial instruments that are not measured at fair value on a recurring basis are as follows.

			Fair Value Level
(in thousands)	Carrying Amount		Level 1		Level 2		Level 3		Total
March 31, 2024
Assets:
HTM debt securities	$	2,465,133	$	17,779	$	2,025,133	$	—	$	2,042,912
Loans and leases, net	18,163,910		—		—		17,622,063		17,622,063
Liabilities:
Deposits	23,332,009		—		23,320,033		—		23,320,033
Long-term debt	324,854		—		—		310,182		310,182
December 31, 2023
Assets:
HTM debt securities	$	2,490,848	$	17,950	$	2,077,670	$	—	$	2,095,620
Loans and leases, net	18,110,684		—		—		17,585,073		17,585,073
Liabilities:
Deposits	23,310,611		—		23,305,223		—		23,305,223
Long-term debt	324,823		—		—		310,060		310,060

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Restricted Stock Units and Options Outstanding and Activity

The table below presents restricted stock unit and option activity for the three months ended March 31, 2024.

	Restricted Stock Unit Awards					Options
	Shares	Weighted- Average Grant- Date Fair Value		Aggregate Intrinsic Value ($000)		Shares	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value ($000)
Outstanding at December 31, 2023	929,367	$	28.85			406,737	$	21.19
Granted	171,905	28.42				—	—
Released / Exercised	(42,467)	30.67		$	1,175	(55,654)	20.32			$	375
Cancelled	(55,672)	27.55				(2,353)	26.05
Outstanding at March 31, 2024	1,003,133	28.80		26,402		348,730	21.29		5.0	1,755
Vested / Exercisable at March 31, 2024	—	—				348,730	21.29		5.0	1,755

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Reclassifications Out of AOCI (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Schedule of Reclassifications Out of AOCI

The following table presents the details regarding amounts reclassified out of AOCI for the periods indicated. Amounts shown in parentheses reduce earnings.

(in thousands)
Details about AOCI Components	Three Months Ended March 31,				Affected Line Item in the Statement Where Net Income is Presented
	2024		2023
Realized losses on AFS securities:
	$	—	$	(1,644)	Securities losses, net
	—		374		Income tax expense
	$	—	$	(1,270)	Net of tax
Amortization of unrealized losses on HTM securities transferred from AFS:
	$	(2,063)	$	(2,968)	Investment securities interest revenue
	493		720		Income tax expense
	$	(1,570)	$	(2,248)	Net of tax
Reclassifications related to derivative instruments accounted for as cash flow hedges:
Interest rate contracts	$	1,440	$	822	Long-term debt interest expense
	(368)		(210)		Income tax expense
	$	1,072	$	612	Net of tax
Amortization of defined benefit pension plan net periodic pension cost components:
Prior service cost	$	(44)	$	(61)	Salaries and employee benefits expense
	11		16		Income tax expense
	$	(33)	$	(45)	Net of tax
Total reclassifications for the period	$	(531)	$	(2,951)	Net of tax

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the periods indicated.

	Three Months Ended March 31,
(in thousands, except per share data)	2024		2023
Net income	$	62,631	$	62,300
Dividends on preferred stock	(1,573)		(1,719)
Earnings allocated to participating securities	(345)		(339)
Net income available to common shareholders	$	60,713	$	60,242
Weighted average shares outstanding:
Basic	119,662		115,451
Effect of dilutive securities:
Stock options	81		233
Restricted stock units	—		31
Diluted	119,743		115,715
Net income per common share:
Basic	$	0.51	$	0.52
Diluted	$	0.51	$	0.52

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Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2024

Regulatory Capital Requirements Under Banking Regulations [Abstract]

Schedule of Minimum Amounts Required for Capital Adequacy Purposes

Regulatory capital ratios at March 31, 2024 and December 31, 2023, along with the minimum amounts required for capital adequacy purposes and to be well-capitalized under regulatory requirements in effect at such times, are presented below for United and the Bank:

					United Community Banks, Inc. (Consolidated)						United Community Bank
(dollars in thousands)	Minimum (1)		Well- Capitalized		March 31, 2024			December 31, 2023			March 31, 2024			December 31, 2023
Risk-based ratios:
CET1 capital	4.5	%	6.5	%	12.39		%	12.16		%	12.60		%	12.22		%
Tier 1 capital	6.0		8.0		12.83			12.60			12.60			12.22
Total capital	8.0		10.0		14.64			14.49			13.63			13.23
Leverage ratio	4.0		5.0		9.69			9.47			9.50			9.17
CET1 capital					$	2,468,825		$	2,432,518		$	2,502,765		$	2,435,962
Tier 1 capital					2,557,091			2,520,784			2,502,765			2,435,962
Total capital					2,917,664			2,898,474			2,707,793			2,638,009
Risk-weighted assets					19,933,869			20,007,236			19,861,459			19,933,429
Average total assets for the leverage ratio					26,400,773			26,621,561			26,351,912			26,563,946

(1) As of March 31, 2024 and December 31, 2023 the additional capital conservation buffer in effect was 2.50%

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contractual Amount of Off-balance Sheet Instruments

The following table summarizes the contractual amount of off-balance sheet instruments as of the dates indicated.

(in thousands)	March 31, 2024		December 31, 2023
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	4,075,892	$	4,305,483
Letters of credit	66,587		61,808

Schedule of Tax Credit and Certain Equity Method Investments

The following table summarizes, as of the dates indicated, tax credit and certain equity method investments:

(in thousands)	Balance Sheet Location	March 31, 2024		December 31, 2023
Investments in LIHTC:
Carrying amount	Other assets	$	57,728	$	48,867
Amount of future funding commitments included in carrying amount	Other liabilities	22,178		14,176
Lending exposure	Loans and leases held for investment	11,691		803
Renewable energy investments:
Carrying amount	Other assets	4,594		18,631
Amount of future funding commitments (1)	N/A	14,406		14,406
Fintech funds and certain other equity method investments:
Carrying amount	Other assets	34,401		33,720
Amount of future funding commitments not included in carrying amount	N/A	28,313		25,008

(1) Starting in 2024, United no longer records future funding commitments related to its renewable energy investments on the balance sheet. Prior to 2024, these commitments were included in other liabilities.

The following table presents a summary of tax credits and amortization expense associated with the United’s tax credit investment activity. Activity related to renewable energy investments was not material to the financials for the period presented.

(dollars in thousands)	Income Statement Location	Three Months Ended March 31, 2024
Investments in LIHTC:
Income tax credits and other income tax benefits	Income tax expense	$	(1,996)
Amortization expense	Income tax expense	1,831

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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Significant non-cash investing and financing transactions:
Commitments to fund equity investments	$ 10,693	$ 20,000
Acquisitions:
Assets acquired	0	1,903,930
Liabilities assumed	0	1,597,022
Net assets acquired	0	306,908
Common stock issued and options converted	$ 0	$ 306,461

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Acquisitions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Measurement period (in year)	1 year
Goodwill	$ 921,253	$ 896,718	$ 919,914	$ 751,174
Decrease in other assets	2,060
Decrease in other liabilities	726
Goodwill, period increase (decrease)	1,340
Merger-related and other charges	2,087	8,631
First Miami Bancorp, Inc
Business Acquisition [Line Items]
Other assets	18,800
Other liabilities	16,900
Goodwill	24,500
Goodwill, period increase (decrease)	$ 1,339	0
Progress | Merger-related costs
Business Acquisition [Line Items]
Merger-related and other charges		$ 7,490

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Acquisitions - Pro Forma Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Business Acquisition [Line Items]
Supplemental consolidated pro forma revenue	$ 229,541
Supplemental consolidated pro forma net income	75,209
Progress
Business Acquisition [Line Items]
Actual revenue included since acquisition date	6,652
Actual net income included since acquisition date	$ 1,810

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Investment Securities - Amortized Cost Basis, Unrealized Gains and Losses and Fair value of HTM Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
HTM debt securities:
Amortized Cost	$ 2,465,133	$ 2,490,848
Gross Unrealized Gains	32	195
Gross Unrealized Losses	422,253	395,423
Fair Value	2,042,912	2,095,620
U.S. Treasuries
HTM debt securities:
Amortized Cost	19,872	19,864
Gross Unrealized Gains	0	0
Gross Unrealized Losses	2,093	1,914
Fair Value	17,779	17,950
U.S. Government agencies & GSEs
HTM debt securities:
Amortized Cost	99,052	99,052
Gross Unrealized Gains	0	0
Gross Unrealized Losses	16,673	15,689
Fair Value	82,379	83,363
State and political subdivisions
HTM debt securities:
Amortized Cost	292,236	292,705
Gross Unrealized Gains	23	171
Gross Unrealized Losses	52,802	50,437
Fair Value	239,457	242,439
Residential MBS, Agency & GSEs
HTM debt securities:
Amortized Cost	1,360,395	1,383,294
Gross Unrealized Gains	9	24
Gross Unrealized Losses	223,439	206,344
Fair Value	1,136,965	1,176,974
Commercial MBS, Agency & GSEs
HTM debt securities:
Amortized Cost	678,578	680,933
Gross Unrealized Gains	0	0
Gross Unrealized Losses	124,464	118,539
Fair Value	554,114	562,394
Supranational entities
HTM debt securities:
Amortized Cost	15,000	15,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	2,782	2,500
Fair Value	$ 12,218	$ 12,500

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Investment Securities - Amortized Cost Basis, Unrealized Gains and Losses and Fair Value of AFS Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
AFS debt securities:
Amortized Cost	$ 3,651,711	$ 3,579,955
Gross Unrealized Gains	840	1,750
Gross Unrealized Losses	259,152	250,621
Fair Value	3,393,399	3,331,084
U.S. Treasuries
AFS debt securities:
Amortized Cost	411,640	398,021
Gross Unrealized Gains	5	39
Gross Unrealized Losses	12,865	10,711
Fair Value	398,780	387,349
U.S. Government agencies & GSEs
AFS debt securities:
Amortized Cost	312,408	281,708
Gross Unrealized Gains	259	269
Gross Unrealized Losses	15,241	14,477
Fair Value	297,426	267,500
State and political subdivisions
AFS debt securities:
Amortized Cost	181,829	182,546
Gross Unrealized Gains	0	5
Gross Unrealized Losses	18,566	18,502
Fair Value	163,263	164,049
Residential MBS, Agency & GSEs
AFS debt securities:
Amortized Cost	1,337,504	1,315,064
Gross Unrealized Gains	250	300
Gross Unrealized Losses	132,233	125,012
Fair Value	1,205,521	1,190,352
Residential MBS, Non-agency
AFS debt securities:
Amortized Cost	333,045	339,330
Gross Unrealized Gains	0	0
Gross Unrealized Losses	20,673	22,084
Fair Value	312,372	317,246
Commercial MBS, Agency & GSEs
AFS debt securities:
Amortized Cost	693,011	656,004
Gross Unrealized Gains	100	1,073
Gross Unrealized Losses	39,653	39,017
Fair Value	653,458	618,060
Commercial MBS, Non-agency
AFS debt securities:
Amortized Cost	20,165	24,269
Gross Unrealized Gains	0	0
Gross Unrealized Losses	542	675
Fair Value	19,623	23,594
Corporate bonds
AFS debt securities:
Amortized Cost	213,371	218,285
Gross Unrealized Gains	130	64
Gross Unrealized Losses	17,601	17,127
Fair Value	195,900	201,222
Asset-backed securities
AFS debt securities:
Amortized Cost	148,738	164,728
Gross Unrealized Gains	96	0
Gross Unrealized Losses	1,778	3,016
Fair Value	$ 147,056	$ 161,712

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Investment Securities - Narrative (Details)	Mar. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($)
Debt Securities, Available For Sale And Held To Maturity [Line Items]
Number of AFS debt securities in unrealized loss position | security	639
Number of HTM debt securities in unrealized loss position | security	315
Allowance for credit losses, HTM portfolio	$ 0	$ 0
Allowance for credit losses, AFS portfolio	0	0
Pledged securities | Interest expense- deposits
Debt Securities, Available For Sale And Held To Maturity [Line Items]
Securities	$ 2,900,000,000	$ 4,120,000,000

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Investment Securities - HTM Debt Securities in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	$ 13,652	$ 9,830
Unrealized Loss, Less than 12 Months	91	130
Fair Value, 12 Months or More	2,019,713	2,062,485
Unrealized Loss, 12 Months or More	422,162	395,293
Fair Value, Total	2,033,365	2,072,315
Unrealized Loss, Total	422,253	395,423
U.S. Treasuries
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	0
Unrealized Loss, Less than 12 Months	0	0
Fair Value, 12 Months or More	17,779	17,951
Unrealized Loss, 12 Months or More	2,093	1,914
Fair Value, Total	17,779	17,951
Unrealized Loss, Total	2,093	1,914
U.S. Government agencies & GSEs
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	0
Unrealized Loss, Less than 12 Months	0	0
Fair Value, 12 Months or More	82,379	83,363
Unrealized Loss, 12 Months or More	16,673	15,689
Fair Value, Total	82,379	83,363
Unrealized Loss, Total	16,673	15,689
State and political subdivisions
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	13,297	2,986
Unrealized Loss, Less than 12 Months	88	13
Fair Value, 12 Months or More	217,862	217,547
Unrealized Loss, 12 Months or More	52,714	50,424
Fair Value, Total	231,159	220,533
Unrealized Loss, Total	52,802	50,437
Residential MBS, Agency & GSEs
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	355	311
Unrealized Loss, Less than 12 Months	3	2
Fair Value, 12 Months or More	1,135,361	1,175,263
Unrealized Loss, 12 Months or More	223,436	206,342
Fair Value, Total	1,135,716	1,175,574
Unrealized Loss, Total	223,439	206,344
Commercial MBS, Agency & GSEs
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	6,533
Unrealized Loss, Less than 12 Months	0	115
Fair Value, 12 Months or More	554,114	555,861
Unrealized Loss, 12 Months or More	124,464	118,424
Fair Value, Total	554,114	562,394
Unrealized Loss, Total	124,464	118,539
Supranational entities
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	0
Unrealized Loss, Less than 12 Months	0	0
Fair Value, 12 Months or More	12,218	12,500
Unrealized Loss, 12 Months or More	2,782	2,500
Fair Value, Total	12,218	12,500
Unrealized Loss, Total	$ 2,782	$ 2,500

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Investment Securities - AFS Debt Securities in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	$ 570,148	$ 306,266
Unrealized Loss, Less than 12 Months	2,889	3,515
Fair Value, 12 Months or More	2,550,246	2,587,704
Unrealized Loss, 12 Months or More	256,263	247,106
Fair Value, Total	3,120,394	2,893,970
Unrealized Loss, Total	259,152	250,621
U.S. Treasuries
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	270,743	100,369
Unrealized Loss, Less than 12 Months	1,566	39
Fair Value, 12 Months or More	102,963	103,535
Unrealized Loss, 12 Months or More	11,299	10,672
Fair Value, Total	373,706	203,904
Unrealized Loss, Total	12,865	10,711
U.S. Government agencies & GSEs
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	40,825	41,960
Unrealized Loss, Less than 12 Months	216	141
Fair Value, 12 Months or More	177,406	184,184
Unrealized Loss, 12 Months or More	15,025	14,336
Fair Value, Total	218,231	226,144
Unrealized Loss, Total	15,241	14,477
State and political subdivisions
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	0
Unrealized Loss, Less than 12 Months	0	0
Fair Value, 12 Months or More	162,495	163,278
Unrealized Loss, 12 Months or More	18,566	18,502
Fair Value, Total	162,495	163,278
Unrealized Loss, Total	18,566	18,502
Residential MBS, Agency & GSEs
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	81,990	50,014
Unrealized Loss, Less than 12 Months	331	672
Fair Value, 12 Months or More	1,086,333	1,108,290
Unrealized Loss, 12 Months or More	131,902	124,340
Fair Value, Total	1,168,323	1,158,304
Unrealized Loss, Total	132,233	125,012
Residential MBS, Non-agency
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	0
Unrealized Loss, Less than 12 Months	0	0
Fair Value, 12 Months or More	312,372	317,247
Unrealized Loss, 12 Months or More	20,673	22,084
Fair Value, Total	312,372	317,247
Unrealized Loss, Total	20,673	22,084
Commercial MBS, Agency & GSEs
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	170,175	98,052
Unrealized Loss, Less than 12 Months	724	2,494
Fair Value, 12 Months or More	379,980	342,390
Unrealized Loss, 12 Months or More	38,929	36,523
Fair Value, Total	550,155	440,442
Unrealized Loss, Total	39,653	39,017
Commercial MBS, Non-agency
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	0
Unrealized Loss, Less than 12 Months	0	0
Fair Value, 12 Months or More	19,623	23,594
Unrealized Loss, 12 Months or More	542	675
Fair Value, Total	19,623	23,594
Unrealized Loss, Total	542	675
Corporate bonds
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	3,201	4,016
Unrealized Loss, Less than 12 Months	49	116
Fair Value, 12 Months or More	190,753	195,329
Unrealized Loss, 12 Months or More	17,552	17,011
Fair Value, Total	193,954	199,345
Unrealized Loss, Total	17,601	17,127
Asset-backed securities
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	3,214	11,855
Unrealized Loss, Less than 12 Months	3	53
Fair Value, 12 Months or More	118,321	149,857
Unrealized Loss, 12 Months or More	1,775	2,963
Fair Value, Total	121,535	161,712
Unrealized Loss, Total	$ 1,778	$ 3,016

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Investment Securities - Accrued Interest Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
HTM
Accrued interest receivable
Accrued interest receivable	$ 5,942	$ 6,143
AFS
Accrued interest receivable
Accrued interest receivable	$ 15,050	$ 12,568

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Investment Securities - Amortized Cost and Fair value of AFS and HTM Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	$ 142,642
AFS, Amortized Cost, 1 to 5 years	516,190
AFS, Amortized Cost, 5 to 10 years	232,493
AFS, Amortized Cost, More than 10 years	227,923
AFS, Amortized Cost, Not due at single maturity	2,532,463
Amortized Cost	3,651,711	$ 3,579,955
AFS, Fair Value
AFS, Fair Value, Within 1 year	141,978
AFS, Fair Value, 1 to 5 years	486,024
AFS, Fair Value, 5 to 10 years	211,776
AFS, Fair Value, More than 10 years	215,591
AFS, Fair Value, Not due at single maturity	2,338,030
Fair Value	3,393,399	3,331,084
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	1,200
HTM, Amortized Cost, 1 to 5 years	47,069
HTM, Amortized Cost, 5 to 10 years	143,299
HTM, Amortized Cost, More than 10 years	234,592
HTM, Amortized Cost, Not due at single maturity	2,038,973
Amortized Cost	2,465,133	2,490,848
HTM, Fair Value
HTM, Fair Value, Within 1 year	1,194
HTM, Fair Value, 1 to 5 years	43,358
HTM, Fair Value, 5 to 10 years	120,815
HTM, Fair Value, More than 10 years	186,466
HTM, Fair Value, Not due at single maturity	1,691,079
Fair value	2,042,912	2,095,620
U.S. Treasuries
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	122,246
AFS, Amortized Cost, 1 to 5 years	289,394
Amortized Cost	411,640	398,021
AFS, Fair Value
AFS, Fair Value, Within 1 year	122,094
AFS, Fair Value, 1 to 5 years	276,686
Fair Value	398,780	387,349
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	0
HTM, Amortized Cost, 1 to 5 years	19,872
Amortized Cost	19,872	19,864
HTM, Fair Value
HTM, Fair Value, Within 1 year	0
HTM, Fair Value, 1 to 5 years	17,779
Fair value	17,779	17,950
U.S. Government agencies & GSEs
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	371
AFS, Amortized Cost, 1 to 5 years	46,818
AFS, Amortized Cost, 5 to 10 years	129,138
AFS, Amortized Cost, More than 10 years	136,081
Amortized Cost	312,408	281,708
AFS, Fair Value
AFS, Fair Value, Within 1 year	357
AFS, Fair Value, 1 to 5 years	43,034
AFS, Fair Value, 5 to 10 years	122,597
AFS, Fair Value, More than 10 years	131,438
Fair Value	297,426	267,500
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	0
HTM, Amortized Cost, 1 to 5 years	0
HTM, Amortized Cost, 5 to 10 years	72,635
HTM, Amortized Cost, More than 10 years	26,417
Amortized Cost	99,052	99,052
HTM, Fair Value
HTM, Fair Value, Within 1 year	0
HTM, Fair Value, 1 to 5 years	0
HTM, Fair Value, 5 to 10 years	61,301
HTM, Fair Value, More than 10 years	21,078
Fair value	82,379	83,363
State and political subdivisions
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	3,147
AFS, Amortized Cost, 1 to 5 years	27,823
AFS, Amortized Cost, 5 to 10 years	59,827
AFS, Amortized Cost, More than 10 years	91,032
Amortized Cost	181,829	182,546
AFS, Fair Value
AFS, Fair Value, Within 1 year	3,114
AFS, Fair Value, 1 to 5 years	25,762
AFS, Fair Value, 5 to 10 years	51,150
AFS, Fair Value, More than 10 years	83,237
Fair Value	163,263	164,049
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	1,200
HTM, Amortized Cost, 1 to 5 years	27,197
HTM, Amortized Cost, 5 to 10 years	55,664
HTM, Amortized Cost, More than 10 years	208,175
Amortized Cost	292,236	292,705
HTM, Fair Value
HTM, Fair Value, Within 1 year	1,194
HTM, Fair Value, 1 to 5 years	25,579
HTM, Fair Value, 5 to 10 years	47,296
HTM, Fair Value, More than 10 years	165,388
Fair value	239,457	242,439
Corporate bonds
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	16,878
AFS, Amortized Cost, 1 to 5 years	152,155
AFS, Amortized Cost, 5 to 10 years	43,528
AFS, Amortized Cost, More than 10 years	810
Amortized Cost	213,371	218,285
AFS, Fair Value
AFS, Fair Value, Within 1 year	16,413
AFS, Fair Value, 1 to 5 years	140,542
AFS, Fair Value, 5 to 10 years	38,029
AFS, Fair Value, More than 10 years	916
Fair Value	195,900	201,222
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	0
HTM, Amortized Cost, 1 to 5 years	0
HTM, Amortized Cost, 5 to 10 years	0
HTM, Amortized Cost, More than 10 years	0
HTM, Fair Value
HTM, Fair Value, Within 1 year	0
HTM, Fair Value, 1 to 5 years	0
HTM, Fair Value, 5 to 10 years	0
HTM, Fair Value, More than 10 years	0
Supranational entities
AFS, Amortized Cost
AFS, Amortized Cost, 5 to 10 years	0
AFS, Fair Value
AFS, Fair Value, 5 to 10 years	0
HTM, Amortized Cost
HTM, Amortized Cost, 5 to 10 years	15,000
Amortized Cost	15,000	15,000
HTM, Fair Value
HTM, Fair Value, 5 to 10 years	12,218
Fair value	12,218	12,500
Asset-backed securities
AFS, Amortized Cost
AFS, Amortized Cost, Not due at single maturity	148,738
Amortized Cost	148,738	164,728
AFS, Fair Value
AFS, Fair Value, Not due at single maturity	147,056
Fair Value	147,056	$ 161,712
HTM, Amortized Cost
HTM, Amortized Cost, Not due at single maturity	0
HTM, Fair Value
HTM, Fair Value, Not due at single maturity	0
Residential MBS
AFS, Amortized Cost
AFS, Amortized Cost, Not due at single maturity	1,670,549
AFS, Fair Value
AFS, Fair Value, Not due at single maturity	1,517,893
HTM, Amortized Cost
HTM, Amortized Cost, Not due at single maturity	1,360,395
HTM, Fair Value
HTM, Fair Value, Not due at single maturity	1,136,965
Commercial MBS
AFS, Amortized Cost
AFS, Amortized Cost, Not due at single maturity	713,176
AFS, Fair Value
AFS, Fair Value, Not due at single maturity	673,081
HTM, Amortized Cost
HTM, Amortized Cost, Not due at single maturity	678,578
HTM, Fair Value
HTM, Fair Value, Not due at single maturity	$ 554,114

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Investment Securities - AFS Sales Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 647	$ 380,661
Gross realized gains	0	1,373
Gross realized losses	0	(3,017)
Securities losses, net	0	(1,644)
Income tax benefit attributable to sales	$ 0	$ (374)

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Loans and Leases and Allowance for Credit Losses - Major classifications of loan portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Classifications of loans
Total loans excluding fair value hedge basis adjustment	$ 18,375,246	$ 18,316,862
Fair value hedge basis adjustment	(402)	1,893
Total loans	18,374,844	18,318,755
Less ACL - loans	(210,934)	(208,071)	$ (176,534)	$ (159,357)
Loans and leases, net	18,163,910	18,110,684
Commercial | Owner occupied CRE
Classifications of loans
Total loans excluding fair value hedge basis adjustment	3,310,231	3,264,051
Commercial | Income producing CRE
Classifications of loans
Total loans excluding fair value hedge basis adjustment	4,206,322	4,263,952
Commercial | Commercial & industrial
Classifications of loans
Total loans excluding fair value hedge basis adjustment	2,404,505	2,411,045
Commercial | Commercial construction
Classifications of loans
Total loans excluding fair value hedge basis adjustment	1,936,074	1,859,538
Commercial | Equipment financing
Classifications of loans
Total loans excluding fair value hedge basis adjustment	1,543,905	1,541,120
Residential | Commercial construction
Classifications of loans
Total loans excluding fair value hedge basis adjustment	257,279	301,650
Residential | Residential mortgage
Classifications of loans
Total loans excluding fair value hedge basis adjustment	3,239,687	3,198,928
Residential | Home equity
Classifications of loans
Total loans excluding fair value hedge basis adjustment	969,020	958,987
Residential | Manufactured housing
Classifications of loans
Total loans excluding fair value hedge basis adjustment	328,121	336,474
Consumer
Classifications of loans
Total loans excluding fair value hedge basis adjustment	180,102	181,117
Loans receivable
Classifications of loans
Total loans excluding fair value hedge basis adjustment	18,375,246	18,316,862
Loans receivable | Commercial
Classifications of loans
Total loans excluding fair value hedge basis adjustment	13,401,037	13,339,706
Loans receivable | Commercial | Owner occupied CRE
Classifications of loans
Total loans excluding fair value hedge basis adjustment	3,310,231	3,264,051
Less ACL - loans	(19,658)	(23,542)	(20,831)	(19,834)
Loans receivable | Commercial | Income producing CRE
Classifications of loans
Total loans excluding fair value hedge basis adjustment	4,206,322	4,263,952
Less ACL - loans	(46,798)	(47,755)	(33,607)	(32,082)
Loans receivable | Commercial | Commercial & industrial
Classifications of loans
Total loans excluding fair value hedge basis adjustment	2,404,505	2,411,045
Less ACL - loans	(31,858)	(30,890)	(28,312)	(23,504)
Loans receivable | Commercial | Commercial construction
Classifications of loans
Total loans excluding fair value hedge basis adjustment	1,936,074	1,859,538
Less ACL - loans	(20,023)	(21,741)	(22,073)	(20,120)
Loans receivable | Commercial | Equipment financing
Classifications of loans
Total loans excluding fair value hedge basis adjustment	1,543,905	1,541,120
Less ACL - loans	(39,982)	(33,383)	(26,195)	(23,395)
Loans receivable | Residential | Commercial construction
Classifications of loans
Total loans excluding fair value hedge basis adjustment	257,279	301,650
Less ACL - loans	(1,529)	(1,833)	(2,043)	(2,049)
Loans receivable | Residential | Residential mortgage
Classifications of loans
Total loans excluding fair value hedge basis adjustment	3,239,687	3,198,928
Less ACL - loans	(28,636)	(28,219)	(24,082)	(20,809)
Loans receivable | Residential | Home equity
Classifications of loans
Total loans excluding fair value hedge basis adjustment	969,020	958,987
Less ACL - loans	(9,715)	(9,647)	(10,337)	(8,707)
Loans receivable | Residential | Manufactured housing
Classifications of loans
Total loans excluding fair value hedge basis adjustment	328,121	336,474
Less ACL - loans	(12,044)	(10,339)	(8,424)	(8,098)
Loans receivable | Consumer
Classifications of loans
Total loans excluding fair value hedge basis adjustment	180,102	181,117
Less ACL - loans	$ (691)	$ (722)	$ (630)	$ (759)

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Loans and Leases and Allowance for Credit Losses - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 extension	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net investment in leases	$ 74,770		$ 68,921
Commercial | Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL loans	$ 55,500		48,500
Commercial | Commercial & industrial | Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Extended weighted average maturity	7 months
Commercial | Commercial & industrial | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Extended weighted average maturity	6 months
Loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable	$ 67,000		$ 67,000
Loans receivable | Commercial | Equipment financing | Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of extensions | extension		1
Extension from modification		3 months
Loans receivable | Commercial | Commercial & industrial | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of extensions | extension		1
Weighted average payment delay term (in months)		3 months
Loans receivable | Commercial | Residential Mortgage and Manufactured Housing | Rate Reduction & Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Decrease in the weighted average interest rate		6.21%
Extended weighted average maturity		6 years 6 months

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Loans and Leases and Allowance for Credit Losses - Loans Held for Investment Sold (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans sold	$ 37,711	$ 40,473
Guaranteed portion of SBA/USDA loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans sold	9,388	21,770
Equipment financing receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans sold	$ 28,323	$ 18,703

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Loans and Leases and Allowance for Credit Losses - Components of Net Investment in Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Net Investment in Leases
Minimum future lease payments receivable	$ 81,882	$ 75,198
Estimated residual value of leased equipment	4,737	4,445
Initial direct costs	1,566	1,402
Security deposits	(437)	(413)
Unearned income	(12,978)	(11,711)
Net investment in leases	$ 74,770	$ 68,921

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Loans and Leases and Allowance for Credit Losses - Minimum Future Lease Payments Expected to be Received from Equipment Financing Lease Contracts (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Minimum future lease payments expected to be received
Remainder of 2024	$ 20,668
2025	23,996
2026	18,243
2027	12,703
2028	5,675
Thereafter	597
Total	$ 81,882

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Loans and Leases and Allowance for Credit Losses - Loans by Aging Category and Accrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	$ 18,375,246	$ 18,316,862
Commercial | Owner occupied CRE
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	3,310,231	3,264,051
Commercial | Income producing CRE
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	4,206,322	4,263,952
Commercial | Commercial & industrial
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	2,404,505	2,411,045
Commercial | Commercial construction
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,936,074	1,859,538
Commercial | Equipment financing
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,543,905	1,541,120
Residential | Commercial construction
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	257,279	301,650
Residential | Residential mortgage
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	3,239,687	3,198,928
Residential | Home equity
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	969,020	958,987
Residential | Manufactured housing
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	328,121	336,474
Consumer
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	180,102	181,117
Loans receivable
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	18,375,246	18,316,862
Nonaccrual Loans	104,969	91,687
Loans receivable | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	18,218,158	18,171,292
Loans receivable | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	43,880	43,941
Loans receivable | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	8,239	9,942
Loans receivable | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	13,401,037	13,339,706
Nonaccrual Loans	62,321	57,072
Loans receivable | Commercial | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	13,305,800	13,256,853
Loans receivable | Commercial | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	27,712	20,650
Loans receivable | Commercial | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	5,204	5,131
Loans receivable | Commercial | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Owner occupied CRE
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	3,310,231	3,264,051
Nonaccrual Loans	2,310	3,094
Loans receivable | Commercial | Owner occupied CRE | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	3,300,380	3,258,015
Loans receivable | Commercial | Owner occupied CRE | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	7,136	2,942
Loans receivable | Commercial | Owner occupied CRE | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	405	0
Loans receivable | Commercial | Owner occupied CRE | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Income producing CRE
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	4,206,322	4,263,952
Nonaccrual Loans	29,186	30,128
Loans receivable | Commercial | Income producing CRE | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	4,176,324	4,230,140
Loans receivable | Commercial | Income producing CRE | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	812	3,684
Loans receivable | Commercial | Income producing CRE | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	0	0
Loans receivable | Commercial | Income producing CRE | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Commercial & industrial
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	2,404,505	2,411,045
Nonaccrual Loans	20,134	13,467
Loans receivable | Commercial | Commercial & industrial | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	2,371,045	2,388,076
Loans receivable | Commercial | Commercial & industrial | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	10,707	8,129
Loans receivable | Commercial | Commercial & industrial | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	2,619	1,373
Loans receivable | Commercial | Commercial & industrial | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Commercial construction
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,936,074	1,859,538
Nonaccrual Loans	1,862	1,878
Loans receivable | Commercial | Commercial construction | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,932,826	1,857,660
Loans receivable | Commercial | Commercial construction | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,311	0
Loans receivable | Commercial | Commercial construction | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	75	0
Loans receivable | Commercial | Commercial construction | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Equipment financing
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,543,905	1,541,120
Nonaccrual Loans	8,829	8,505
Loans receivable | Commercial | Equipment financing | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,525,225	1,522,962
Loans receivable | Commercial | Equipment financing | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	7,746	5,895
Loans receivable | Commercial | Equipment financing | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	2,105	3,758
Loans receivable | Commercial | Equipment financing | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Commercial construction
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	257,279	301,650
Nonaccrual Loans	1,244	944
Loans receivable | Residential | Commercial construction | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	255,899	299,230
Loans receivable | Residential | Commercial construction | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	51	1,255
Loans receivable | Residential | Commercial construction | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	85	221
Loans receivable | Residential | Commercial construction | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Residential mortgage
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	3,239,687	3,198,928
Nonaccrual Loans	16,569	13,944
Loans receivable | Residential | Residential mortgage | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	3,217,293	3,179,329
Loans receivable | Residential | Residential mortgage | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	5,182	4,622
Loans receivable | Residential | Residential mortgage | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	643	1,033
Loans receivable | Residential | Residential mortgage | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Home equity
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	969,020	958,987
Nonaccrual Loans	4,984	3,772
Loans receivable | Residential | Home equity | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	960,734	950,841
Loans receivable | Residential | Home equity | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	2,638	4,106
Loans receivable | Residential | Home equity | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	664	268
Loans receivable | Residential | Home equity | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Manufactured housing
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	328,121	336,474
Nonaccrual Loans	19,797	15,861
Loans receivable | Residential | Manufactured housing | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	298,850	304,794
Loans receivable | Residential | Manufactured housing | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	7,869	12,622
Loans receivable | Residential | Manufactured housing | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	1,605	3,197
Loans receivable | Residential | Manufactured housing | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Consumer
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	180,102	181,117
Nonaccrual Loans	54	94
Loans receivable | Consumer | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	179,582	180,245
Loans receivable | Consumer | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	428	686
Loans receivable | Consumer | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans excluding fair value hedge basis adjustment	38	92
Loans receivable | Consumer | Loans Past Due, > 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	$ 0	$ 0

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Loans and Leases and Allowance for Credit Losses - Nonaccrual Loans by Loan Class (Details) - Loans receivable - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Nonaccrual loans
Nonaccrual loans with no allowance	$ 51,708	$ 30,747
Nonaccrual loans with an allowance	53,261	60,940
Nonaccrual loans	104,969	91,687
Commercial
Nonaccrual loans
Nonaccrual loans with no allowance	46,133	27,235
Nonaccrual loans with an allowance	16,188	29,837
Nonaccrual loans	62,321	57,072
Commercial | Owner occupied CRE
Nonaccrual loans
Nonaccrual loans with no allowance	1,072	2,451
Nonaccrual loans with an allowance	1,238	643
Nonaccrual loans	2,310	3,094
Commercial | Income producing CRE
Nonaccrual loans
Nonaccrual loans with no allowance	29,153	11,003
Nonaccrual loans with an allowance	33	19,125
Nonaccrual loans	29,186	30,128
Commercial | Commercial & industrial
Nonaccrual loans
Nonaccrual loans with no allowance	14,038	11,940
Nonaccrual loans with an allowance	6,096	1,527
Nonaccrual loans	20,134	13,467
Commercial | Commercial construction
Nonaccrual loans
Nonaccrual loans with no allowance	1,778	1,784
Nonaccrual loans with an allowance	84	94
Nonaccrual loans	1,862	1,878
Commercial | Equipment financing
Nonaccrual loans
Nonaccrual loans with no allowance	92	57
Nonaccrual loans with an allowance	8,737	8,448
Nonaccrual loans	8,829	8,505
Residential | Commercial construction
Nonaccrual loans
Nonaccrual loans with no allowance	781	398
Nonaccrual loans with an allowance	463	546
Nonaccrual loans	1,244	944
Residential | Residential mortgage
Nonaccrual loans
Nonaccrual loans with no allowance	3,368	1,836
Nonaccrual loans with an allowance	13,201	12,108
Nonaccrual loans	16,569	13,944
Residential | Home equity
Nonaccrual loans
Nonaccrual loans with no allowance	1,426	1,276
Nonaccrual loans with an allowance	3,558	2,496
Nonaccrual loans	4,984	3,772
Residential | Manufactured housing
Nonaccrual loans
Nonaccrual loans with no allowance	0	0
Nonaccrual loans with an allowance	19,797	15,861
Nonaccrual loans	19,797	15,861
Consumer
Nonaccrual loans
Nonaccrual loans with no allowance	0	2
Nonaccrual loans with an allowance	54	92
Nonaccrual loans	$ 54	$ 94

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Loans and Leases and Allowance for Credit Losses - Amortized Cost of Loans by Risk Category by Vintage Year (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans excluding fair value hedge basis adjustment	$ 18,375,246		$ 18,316,862
Current period gross charge-offs, Total	15,409	$ 9,524
Commercial | Owner occupied CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	123,244		657,289
Originated in prior year	653,388		698,640
Originated two years prior	689,133		638,046
Originated three years prior	623,752		564,966
Originated four years prior	559,995		216,684
Originated five or more years prior	526,186		348,080
Revolvers	114,496		118,733
Revolvers converted to term loans	20,037		21,613
Total loans excluding fair value hedge basis adjustment	3,310,231		3,264,051
Current period gross charge-offs, in current fiscal year	0		207
Current period gross charge-offs, in prior year	192		48
Current period gross charge-offs, two years prior	17		0
Current period gross charge-offs, three years prior	0		819
Current period gross charge-offs, four years prior	0		0
Current period gross charge-offs, five or more years prior	219		0
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	428		1,074
Commercial | Owner occupied CRE | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	121,015		643,752
Originated in prior year	643,801		681,834
Originated two years prior	665,648		615,571
Originated three years prior	594,768		553,047
Originated four years prior	546,727		202,068
Originated five or more years prior	501,390		337,495
Revolvers	113,065		117,212
Revolvers converted to term loans	17,263		18,671
Total loans excluding fair value hedge basis adjustment	3,203,677		3,169,650
Commercial | Owner occupied CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	831		2,409
Originated in prior year	1,837		7,877
Originated two years prior	14,475		7,070
Originated three years prior	13,905		4,815
Originated four years prior	9,131		9,221
Originated five or more years prior	11,771		2,245
Revolvers	0		100
Revolvers converted to term loans	2,774		254
Total loans excluding fair value hedge basis adjustment	54,724		33,991
Commercial | Owner occupied CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	1,398		11,128
Originated in prior year	7,750		8,929
Originated two years prior	9,010		15,405
Originated three years prior	15,079		7,104
Originated four years prior	4,137		5,395
Originated five or more years prior	13,025		8,340
Revolvers	1,431		1,421
Revolvers converted to term loans	0		2,688
Total loans excluding fair value hedge basis adjustment	51,830		60,410
Commercial | Income producing CRE
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	223,732		777,483
Originated in prior year	670,390		968,308
Originated two years prior	965,451		873,041
Originated three years prior	858,815		797,416
Originated four years prior	715,985		338,109
Originated five or more years prior	708,029		445,635
Revolvers	51,780		50,659
Revolvers converted to term loans	12,140		13,301
Total loans excluding fair value hedge basis adjustment	4,206,322		4,263,952
Current period gross charge-offs, in current fiscal year	0		3,033
Current period gross charge-offs, in prior year	0		2,534
Current period gross charge-offs, two years prior	0		0
Current period gross charge-offs, three years prior	0		0
Current period gross charge-offs, four years prior	0		0
Current period gross charge-offs, five or more years prior	229		2,291
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	229		7,858
Commercial | Income producing CRE | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	157,636		661,093
Originated in prior year	570,861		931,559
Originated two years prior	929,507		851,529
Originated three years prior	835,019		750,415
Originated four years prior	681,583		302,845
Originated five or more years prior	668,180		419,111
Revolvers	51,731		50,659
Revolvers converted to term loans	12,087		13,247
Total loans excluding fair value hedge basis adjustment	3,906,604		3,980,458
Commercial | Income producing CRE | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	27,581		48,358
Originated in prior year	51,055		26,751
Originated two years prior	26,868		18,989
Originated three years prior	21,336		25,964
Originated four years prior	28,963		6,387
Originated five or more years prior	12,362		6,173
Revolvers	49		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	168,214		132,622
Commercial | Income producing CRE | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	38,515		68,032
Originated in prior year	48,474		9,998
Originated two years prior	9,076		2,523
Originated three years prior	2,460		21,037
Originated four years prior	5,439		28,877
Originated five or more years prior	27,487		20,351
Revolvers	0		0
Revolvers converted to term loans	53		54
Total loans excluding fair value hedge basis adjustment	131,504		150,872
Commercial | Commercial & industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	108,975		627,653
Originated in prior year	587,532		433,407
Originated two years prior	405,746		322,277
Originated three years prior	298,107		144,573
Originated four years prior	135,945		92,682
Originated five or more years prior	210,151		132,518
Revolvers	645,246		643,014
Revolvers converted to term loans	12,803		14,921
Total loans excluding fair value hedge basis adjustment	2,404,505		2,411,045
Current period gross charge-offs, in current fiscal year	0		5,999
Current period gross charge-offs, in prior year	3,105		1,627
Current period gross charge-offs, two years prior	409		13,153
Current period gross charge-offs, three years prior	107		2,377
Current period gross charge-offs, four years prior	111		400
Current period gross charge-offs, five or more years prior	532		157
Revolvers	0		0
Revolvers converted to term loans	522		1,825
Current period gross charge-offs, Total	4,786		25,538
Commercial | Commercial & industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	97,538		610,288
Originated in prior year	559,393		425,626
Originated two years prior	398,107		299,170
Originated three years prior	275,540		130,586
Originated four years prior	122,578		82,710
Originated five or more years prior	197,346		130,190
Revolvers	578,784		581,871
Revolvers converted to term loans	11,182		13,332
Total loans excluding fair value hedge basis adjustment	2,240,468		2,273,773
Commercial | Commercial & industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	10,752		6,459
Originated in prior year	2,434		2,068
Originated two years prior	3,821		472
Originated three years prior	6,862		5,430
Originated four years prior	8,432		5,473
Originated five or more years prior	8,090		718
Revolvers	34,656		14,861
Revolvers converted to term loans	313		274
Total loans excluding fair value hedge basis adjustment	75,360		35,755
Commercial | Commercial & industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	685		10,906
Originated in prior year	25,705		5,713
Originated two years prior	3,818		22,635
Originated three years prior	15,705		8,557
Originated four years prior	4,935		4,499
Originated five or more years prior	4,715		1,610
Revolvers	31,806		46,282
Revolvers converted to term loans	1,308		1,315
Total loans excluding fair value hedge basis adjustment	88,677		101,517
Commercial | Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	167,154		682,073
Originated in prior year	633,287		640,669
Originated two years prior	668,729		293,313
Originated three years prior	263,125		95,769
Originated four years prior	63,228		59,598
Originated five or more years prior	74,525		24,780
Revolvers	65,090		62,370
Revolvers converted to term loans	936		966
Total loans excluding fair value hedge basis adjustment	1,936,074		1,859,538
Current period gross charge-offs, in current fiscal year	0		0
Current period gross charge-offs, in prior year	0		60
Current period gross charge-offs, two years prior	53		0
Current period gross charge-offs, three years prior	0		0
Current period gross charge-offs, four years prior	0		0
Current period gross charge-offs, five or more years prior	0		0
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	53		60
Commercial | Commercial construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	160,727		665,792
Originated in prior year	627,053		638,761
Originated two years prior	667,547		293,276
Originated three years prior	263,091		95,046
Originated four years prior	62,508		59,471
Originated five or more years prior	74,320		24,698
Revolvers	65,090		62,370
Revolvers converted to term loans	936		966
Total loans excluding fair value hedge basis adjustment	1,921,272		1,840,380
Commercial | Commercial construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	4,849		28
Originated in prior year	204		124
Originated two years prior	118		6
Originated three years prior	4		0
Originated four years prior	0		0
Originated five or more years prior	0		0
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	5,175		158
Commercial | Commercial construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	1,578		16,253
Originated in prior year	6,030		1,784
Originated two years prior	1,064		31
Originated three years prior	30		723
Originated four years prior	720		127
Originated five or more years prior	205		82
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	9,627		19,000
Commercial | Equipment financing
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	192,828		674,672
Originated in prior year	580,832		500,477
Originated two years prior	457,478		235,909
Originated three years prior	206,510		84,467
Originated four years prior	70,491		41,870
Originated five or more years prior	35,766		3,725
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	1,543,905		1,541,120
Current period gross charge-offs, in current fiscal year	0		474
Current period gross charge-offs, in prior year	1,219		10,902
Current period gross charge-offs, two years prior	3,457		9,764
Current period gross charge-offs, three years prior	2,199		1,960
Current period gross charge-offs, four years prior	383		786
Current period gross charge-offs, five or more years prior	31		320
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	7,289		24,206
Commercial | Equipment financing | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	192,828		673,201
Originated in prior year	578,878		496,336
Originated two years prior	452,224		233,422
Originated three years prior	201,010		83,507
Originated four years prior	68,999		41,053
Originated five or more years prior	34,265		3,722
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	1,528,204		1,531,241
Commercial | Equipment financing | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0
Originated in prior year	0
Originated two years prior	815
Originated three years prior	2,311
Originated four years prior	900
Originated five or more years prior	674
Revolvers	0
Revolvers converted to term loans	0
Total loans excluding fair value hedge basis adjustment	4,700
Commercial | Equipment financing | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0		1,471
Originated in prior year	1,954		4,141
Originated two years prior	4,439		2,487
Originated three years prior	3,189		960
Originated four years prior	592		817
Originated five or more years prior	827		3
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	11,001		9,879
Residential | Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	15,324		209,676
Originated in prior year	177,055		70,042
Originated two years prior	44,554		9,827
Originated three years prior	9,044		5,207
Originated four years prior	4,948		1,084
Originated five or more years prior	6,262		5,721
Revolvers	0		0
Revolvers converted to term loans	92		93
Total loans excluding fair value hedge basis adjustment	257,279		301,650
Current period gross charge-offs, in current fiscal year	0		0
Current period gross charge-offs, in prior year	85		1,111
Current period gross charge-offs, two years prior	0		0
Current period gross charge-offs, three years prior	48		0
Current period gross charge-offs, four years prior	0		0
Current period gross charge-offs, five or more years prior	0		0
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	133		1,111
Residential | Commercial construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	15,109		208,798
Originated in prior year	176,092		70,011
Originated two years prior	44,524		9,827
Originated three years prior	9,044		5,201
Originated four years prior	4,941		1,046
Originated five or more years prior	6,127		5,614
Revolvers	0		0
Revolvers converted to term loans	92		93
Total loans excluding fair value hedge basis adjustment	255,929		300,590
Residential | Commercial construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	215		878
Originated in prior year	963		31
Originated two years prior	30		0
Originated three years prior	0		6
Originated four years prior	7		38
Originated five or more years prior	135		107
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	1,350		1,060
Residential | Residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	103,912		841,826
Originated in prior year	825,945		958,670
Originated two years prior	945,024		736,793
Originated three years prior	723,803		319,960
Originated four years prior	313,790		86,067
Originated five or more years prior	323,664		251,943
Revolvers	6		6
Revolvers converted to term loans	3,543		3,663
Total loans excluding fair value hedge basis adjustment	3,239,687		3,198,928
Current period gross charge-offs, in current fiscal year	0		0
Current period gross charge-offs, in prior year	0		51
Current period gross charge-offs, two years prior	13		0
Current period gross charge-offs, three years prior	0		0
Current period gross charge-offs, four years prior	0		0
Current period gross charge-offs, five or more years prior	3		38
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	16		89
Residential | Residential mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	102,601		839,825
Originated in prior year	823,173		955,592
Originated two years prior	941,593		734,078
Originated three years prior	721,699		318,886
Originated four years prior	311,808		84,736
Originated five or more years prior	315,388		245,648
Revolvers	6		6
Revolvers converted to term loans	3,262		3,415
Total loans excluding fair value hedge basis adjustment	3,219,530		3,182,186
Residential | Residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	1,311		2,001
Originated in prior year	2,772		3,078
Originated two years prior	3,431		2,715
Originated three years prior	2,104		1,074
Originated four years prior	1,982		1,331
Originated five or more years prior	8,276		6,295
Revolvers	0		0
Revolvers converted to term loans	281		248
Total loans excluding fair value hedge basis adjustment	20,157		16,742
Residential | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0		0
Originated in prior year	0		0
Originated two years prior	0		0
Originated three years prior	0		0
Originated four years prior	0		0
Originated five or more years prior	0		0
Revolvers	935,162		926,596
Revolvers converted to term loans	33,858		32,391
Total loans excluding fair value hedge basis adjustment	969,020		958,987
Current period gross charge-offs, in current fiscal year	0		0
Current period gross charge-offs, in prior year	0		0
Current period gross charge-offs, two years prior	0		0
Current period gross charge-offs, three years prior	0		0
Current period gross charge-offs, four years prior	0		0
Current period gross charge-offs, five or more years prior	0		0
Revolvers	0		0
Revolvers converted to term loans	7		167
Current period gross charge-offs, Total	7		167
Residential | Home equity | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0		0
Originated in prior year	0		0
Originated two years prior	0		0
Originated three years prior	0		0
Originated four years prior	0		0
Originated five or more years prior	0		0
Revolvers	935,162		926,596
Revolvers converted to term loans	28,461		28,412
Total loans excluding fair value hedge basis adjustment	963,623		955,008
Residential | Home equity | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0		0
Originated in prior year	0		0
Originated two years prior	0		0
Originated three years prior	0		0
Originated four years prior	0		0
Originated five or more years prior	0		0
Revolvers	0		0
Revolvers converted to term loans	5,397		3,979
Total loans excluding fair value hedge basis adjustment	5,397		3,979
Residential | Manufactured housing
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	128		46,143
Originated in prior year	45,209		74,089
Originated two years prior	72,210		52,415
Originated three years prior	51,290		46,755
Originated four years prior	45,846		32,612
Originated five or more years prior	113,438		84,460
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	328,121		336,474
Current period gross charge-offs, in current fiscal year	0		38
Current period gross charge-offs, in prior year	234		1,503
Current period gross charge-offs, two years prior	615		985
Current period gross charge-offs, three years prior	304		419
Current period gross charge-offs, four years prior	149		279
Current period gross charge-offs, five or more years prior	305		690
Revolvers	0		0
Revolvers converted to term loans	0		0
Current period gross charge-offs, Total	1,607		3,914
Residential | Manufactured housing | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0		45,065
Originated in prior year	43,191		69,424
Originated two years prior	67,155		48,814
Originated three years prior	47,387		43,735
Originated four years prior	42,030		31,321
Originated five or more years prior	106,805		80,284
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	306,568		318,643
Residential | Manufactured housing | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	128		1,078
Originated in prior year	2,018		4,665
Originated two years prior	5,055		3,601
Originated three years prior	3,903		3,020
Originated four years prior	3,816		1,291
Originated five or more years prior	6,633		4,176
Revolvers	0		0
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	21,553		17,831
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	27,586		86,192
Originated in prior year	71,681		39,648
Originated two years prior	33,723		16,244
Originated three years prior	13,735		10,375
Originated four years prior	9,530		1,217
Originated five or more years prior	1,318		636
Revolvers	22,067		26,271
Revolvers converted to term loans	462		534
Total loans excluding fair value hedge basis adjustment	180,102		181,117
Current period gross charge-offs, in current fiscal year	648		3,245
Current period gross charge-offs, in prior year	55		241
Current period gross charge-offs, two years prior	86		233
Current period gross charge-offs, three years prior	18		38
Current period gross charge-offs, four years prior	5		15
Current period gross charge-offs, five or more years prior	0		1
Revolvers	0		5
Revolvers converted to term loans	49		204
Current period gross charge-offs, Total	861		3,982
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	27,459		86,142
Originated in prior year	71,656		39,593
Originated two years prior	33,669		16,191
Originated three years prior	13,687		10,350
Originated four years prior	9,517		1,212
Originated five or more years prior	1,309		623
Revolvers	22,067		26,239
Revolvers converted to term loans	462		534
Total loans excluding fair value hedge basis adjustment	179,826		180,884
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	127		50
Originated in prior year	25		55
Originated two years prior	54		53
Originated three years prior	48		25
Originated four years prior	13		5
Originated five or more years prior	9		13
Revolvers	0		32
Revolvers converted to term loans	0		0
Total loans excluding fair value hedge basis adjustment	$ 276		$ 233

XML

Loans and Leases and Allowance for Credit Losses - Modifications to Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 6,512
Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	29,085
Payment Delay & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	1,672
Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	1,329
Rate Reduction & Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	40,039
Commercial | Owner occupied CRE | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 243
Weighted average maturity	1 year
Commercial | Owner occupied CRE | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 266
Commercial | Owner occupied CRE | Rate Reduction & Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1,441
Weighted average maturity	6 months
Weighted average interest rate	0.75%
Commercial | Income producing CRE | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 28,540
Weighted average maturity	1 year
Commercial | Commercial & industrial | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 6,117
Weighted average maturity	7 months
Commercial | Commercial & industrial | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 179
Weighted average maturity	6 months
Commercial | Commercial & industrial | Payment Delay & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 279
Commercial | Commercial & industrial | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted average maturity	4 months
Commercial | Commercial & industrial | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted average maturity	3 years
Commercial | Equipment financing | Payment Delay & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1,393
Weighted average maturity	7 months
Residential | Residential mortgage | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 27
Weighted average maturity	1 year
Residential | Residential mortgage | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1,201
Weighted average maturity	2 years
Weighted average interest rate	4.44%
Residential | Residential construction | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 100
Weighted average maturity	6 months
Residential | Manufactured housing | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 128
Weighted average maturity	6 years
Weighted average interest rate	6.24%
Consumer | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 125
Weighted average maturity	5 months
Loans receivable
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 40,039	$ 11,590
% of Total Class of Receivable	0.20%	0.10%
Defaults within 12 months of modification	$ 228	$ 0
Loans receivable | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		5,211
Loans receivable | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		6,170
Loans receivable | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		209
Loans receivable | Commercial | Owner occupied CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1,950
% of Total Class of Receivable	0.10%
Defaults within 12 months of modification	$ 0
Loans receivable | Commercial | Income producing CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 28,540
% of Total Class of Receivable	0.70%
Defaults within 12 months of modification	$ 0
Loans receivable | Commercial | Commercial & industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 6,575	$ 6,170
% of Total Class of Receivable	0.30%	0.30%
Defaults within 12 months of modification	$ 0	$ 0
Loans receivable | Commercial | Commercial & industrial | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Commercial | Commercial & industrial | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		6,170
Loans receivable | Commercial | Commercial & industrial | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Commercial | Equipment financing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1,393	$ 5,211
% of Total Class of Receivable	0.10%	0.40%
Defaults within 12 months of modification	$ 228	$ 0
Loans receivable | Commercial | Equipment financing | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		5,211
Loans receivable | Commercial | Equipment financing | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Commercial | Equipment financing | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Residential | Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1,228	$ 57
% of Total Class of Receivable	0.00%	0.00%
Defaults within 12 months of modification	$ 0	$ 0
Loans receivable | Residential | Residential mortgage | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Residential | Residential mortgage | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Residential | Residential mortgage | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		57
Loans receivable | Residential | Residential construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 100
% of Total Class of Receivable	0.00%
Defaults within 12 months of modification	$ 0
Loans receivable | Residential | Manufactured housing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 128	$ 152
% of Total Class of Receivable	0.00%	0.00%
Defaults within 12 months of modification	$ 0	$ 0
Loans receivable | Residential | Manufactured housing | Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Residential | Manufactured housing | Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		0
Loans receivable | Residential | Manufactured housing | Rate Reduction & Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost		$ 152
Loans receivable | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 125
% of Total Class of Receivable	0.10%
Defaults within 12 months of modification	$ 0

XML

Loans and Leases and Allowance for Credit Losses - Balance and Activity in the ACL by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
ACL
ACL - loans, Beginning Balance	$ 208,071	$ 159,357	$ 159,357
ACL- loans, Initial ACL - PCD loans		2,704
ACL - loans, Charge-Offs	(15,409)	(9,524)
ACL - loans, Recoveries	2,501	2,440
ACL - loans, Provision	15,771	21,557
ACL - loans, Ending Balance	210,934	176,534	208,071
ACL - unfunded commitments, Beginning Balance	16,057	21,163	21,163
ACL - unfunded commitments, Provision	(2,872)	226
ACL - unfunded commitments, Ending Balance	13,185	21,389	16,057
Total ACL, Beginning Balance	224,128	180,520	180,520
Total ACL, Initial ACL - PCD loans		2,704
Total ACL, Charge-Offs	(15,409)	(9,524)
Total ACL, Recoveries	2,501	2,440
Total ACL, Provision	12,899	21,783
Total ACL, Ending Balance	224,119	197,923	224,128
Commercial | Owner occupied CRE
ACL
ACL - loans, Charge-Offs	(428)		(1,074)
Commercial | Income producing CRE
ACL
ACL - loans, Charge-Offs	(229)		(7,858)
Commercial | Commercial & industrial
ACL
ACL - loans, Charge-Offs	(4,786)		(25,538)
Commercial | Commercial construction
ACL
ACL - loans, Charge-Offs	(53)		(60)
Commercial | Equipment financing
ACL
ACL - loans, Charge-Offs	(7,289)		(24,206)
Residential | Commercial construction
ACL
ACL - loans, Charge-Offs	(133)		(1,111)
Residential | Residential mortgage
ACL
ACL - loans, Charge-Offs	(16)		(89)
Residential | Home equity
ACL
ACL - loans, Charge-Offs	(7)		(167)
Residential | Manufactured housing
ACL
ACL - loans, Charge-Offs	(1,607)		(3,914)
Consumer
ACL
ACL - loans, Charge-Offs	(861)		(3,982)
Loans receivable | Commercial | Owner occupied CRE
ACL
ACL - loans, Beginning Balance	23,542	19,834	19,834
ACL- loans, Initial ACL - PCD loans		181
ACL - loans, Charge-Offs	(428)	(207)
ACL - loans, Recoveries	226	117
ACL - loans, Provision	(3,682)	906
ACL - loans, Ending Balance	19,658	20,831	23,542
Loans receivable | Commercial | Income producing CRE
ACL
ACL - loans, Beginning Balance	47,755	32,082	32,082
ACL- loans, Initial ACL - PCD loans		307
ACL - loans, Charge-Offs	(229)	(2,781)
ACL - loans, Recoveries	24	475
ACL - loans, Provision	(752)	3,524
ACL - loans, Ending Balance	46,798	33,607	47,755
Loans receivable | Commercial | Commercial & industrial
ACL
ACL - loans, Beginning Balance	30,890	23,504	23,504
ACL- loans, Initial ACL - PCD loans		1,358
ACL - loans, Charge-Offs	(4,786)	(898)
ACL - loans, Recoveries	880	673
ACL - loans, Provision	4,874	3,675
ACL - loans, Ending Balance	31,858	28,312	30,890
Loans receivable | Commercial | Commercial construction
ACL
ACL - loans, Beginning Balance	21,741	20,120	20,120
ACL- loans, Initial ACL - PCD loans		39
ACL - loans, Charge-Offs	(53)	0
ACL - loans, Recoveries	33	37
ACL - loans, Provision	(1,698)	1,877
ACL - loans, Ending Balance	20,023	22,073	21,741
Loans receivable | Commercial | Equipment financing
ACL
ACL - loans, Beginning Balance	33,383	23,395	23,395
ACL- loans, Initial ACL - PCD loans		0
ACL - loans, Charge-Offs	(7,289)	(4,027)
ACL - loans, Recoveries	927	652
ACL - loans, Provision	12,961	6,175
ACL - loans, Ending Balance	39,982	26,195	33,383
Loans receivable | Residential | Commercial construction
ACL
ACL - loans, Beginning Balance	1,833	2,049	2,049
ACL- loans, Initial ACL - PCD loans		124
ACL - loans, Charge-Offs	(133)	0
ACL - loans, Recoveries	14	15
ACL - loans, Provision	(185)	(145)
ACL - loans, Ending Balance	1,529	2,043	1,833
Loans receivable | Residential | Residential mortgage
ACL
ACL - loans, Beginning Balance	28,219	20,809	20,809
ACL- loans, Initial ACL - PCD loans		157
ACL - loans, Charge-Offs	(16)	(19)
ACL - loans, Recoveries	32	106
ACL - loans, Provision	401	3,029
ACL - loans, Ending Balance	28,636	24,082	28,219
Loans receivable | Residential | Home equity
ACL
ACL - loans, Beginning Balance	9,647	8,707	8,707
ACL- loans, Initial ACL - PCD loans		534
ACL - loans, Charge-Offs	(7)	(121)
ACL - loans, Recoveries	61	88
ACL - loans, Provision	14	1,129
ACL - loans, Ending Balance	9,715	10,337	9,647
Loans receivable | Residential | Manufactured housing
ACL
ACL - loans, Beginning Balance	10,339	8,098	8,098
ACL- loans, Initial ACL - PCD loans		0
ACL - loans, Charge-Offs	(1,607)	(654)
ACL - loans, Recoveries	38	26
ACL - loans, Provision	3,274	954
ACL - loans, Ending Balance	12,044	8,424	10,339
Loans receivable | Consumer
ACL
ACL - loans, Beginning Balance	722	759	759
ACL- loans, Initial ACL - PCD loans		4
ACL - loans, Charge-Offs	(861)	(817)
ACL - loans, Recoveries	266	251
ACL - loans, Provision	564	433
ACL - loans, Ending Balance	$ 691	$ 630	$ 722

XML

Derivatives and Hedging Activities - Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Notional Amount	$ 5,133,140	$ 3,624,740
Derivative Asset
Total gross derivative instruments	53,202	50,352
Less: Amounts subject to master netting agreements	(1,444)	(4,683)
Less: Cash collateral received/pledged	(39,841)	(33,921)
Net amount	11,917	11,748
Derivative Liability
Total gross derivative instruments	91,413	84,811
Less: Amounts subject to master netting agreements	(1,444)	(4,683)
Less: Cash collateral received/pledged	(12,593)	(11,330)
Net amount	77,376	68,798
Derivative assets
Derivative Asset
Total gross derivative instruments	53,202	50,352
Derivative liabilities
Derivative Liability
Total gross derivative instruments	91,413	84,811
Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Notional Amount	2,419,520	925,511
Designated as hedging instrument | Cash flow hedge of subordinated debt
Derivatives, Fair Value [Line Items]
Notional Amount	100,000	100,000
Designated as hedging instrument | Cash flow hedges of trust preferred securities
Derivatives, Fair Value [Line Items]
Notional Amount	20,000	20,000
Designated as hedging instrument | Fair value hedges of AFS debt securities
Derivatives, Fair Value [Line Items]
Notional Amount	649,520	655,511
Designated as hedging instrument | Fair value hedges of loans
Derivatives, Fair Value [Line Items]
Notional Amount	1,650,000	150,000
Designated as hedging instrument | Derivative assets
Derivative Asset
Derivatives designated as hedging instruments	13,840	13,168
Designated as hedging instrument | Derivative assets | Cash flow hedge of subordinated debt
Derivative Asset
Cash flow hedge	13,840	13,168
Designated as hedging instrument | Derivative assets | Cash flow hedges of trust preferred securities
Derivative Asset
Cash flow hedge	0	0
Designated as hedging instrument | Derivative assets | Fair value hedges of AFS debt securities
Derivative Asset
Fair value hedge	0	0
Designated as hedging instrument | Derivative assets | Fair value hedges of loans
Derivative Asset
Fair value hedge	0	0
Designated as hedging instrument | Derivative liabilities
Derivative Liability
Derivatives designated as hedging instruments	0	0
Designated as hedging instrument | Derivative liabilities | Cash flow hedge of subordinated debt
Derivative Liability
Cash flow hedge	0	0
Designated as hedging instrument | Derivative liabilities | Cash flow hedges of trust preferred securities
Derivative Liability
Cash flow hedge	0	0
Designated as hedging instrument | Derivative liabilities | Fair value hedges of AFS debt securities
Derivative Liability
Fair value hedge	0	0
Designated as hedging instrument | Derivative liabilities | Fair value hedges of loans
Derivative Liability
Fair value hedge	0	0
Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Notional Amount	2,713,620	2,699,229
Not designated as hedging instrument | Customer derivative positions
Derivatives, Fair Value [Line Items]
Notional Amount	1,173,714	1,177,275
Not designated as hedging instrument | Dealer offsets to customer derivative positions
Derivatives, Fair Value [Line Items]
Notional Amount	1,173,714	1,197,364
Not designated as hedging instrument | Risk participations
Derivatives, Fair Value [Line Items]
Notional Amount	89,811	90,597
Not designated as hedging instrument | Mortgage banking - loan commitments
Derivatives, Fair Value [Line Items]
Notional Amount	67,260	48,452
Not designated as hedging instrument | Mortgage banking - forward sales commitment
Derivatives, Fair Value [Line Items]
Notional Amount	105,251	81,671
Not designated as hedging instrument | Bifurcated embedded derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	51,935	51,935
Not designated as hedging instrument | Dealer offsets to bifurcated embedded derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	51,935	51,935
Not designated as hedging instrument | Derivative assets
Derivative Asset
Derivatives not designated as hedging instruments	39,362	37,184
Not designated as hedging instrument | Derivative assets | Customer derivative positions
Derivative Asset
Derivatives not designated as hedging instruments	1,358	3,461
Not designated as hedging instrument | Derivative assets | Dealer offsets to customer derivative positions
Derivative Asset
Derivatives not designated as hedging instruments	25,588	23,061
Not designated as hedging instrument | Derivative assets | Risk participations
Derivative Asset
Derivatives not designated as hedging instruments	1	1
Not designated as hedging instrument | Derivative assets | Mortgage banking - loan commitments
Derivative Asset
Derivatives not designated as hedging instruments	1,630	1,089
Not designated as hedging instrument | Derivative assets | Mortgage banking - forward sales commitment
Derivative Asset
Derivatives not designated as hedging instruments	89	20
Not designated as hedging instrument | Derivative assets | Bifurcated embedded derivatives
Derivative Asset
Derivatives not designated as hedging instruments	10,696	9,552
Not designated as hedging instrument | Derivative assets | Dealer offsets to bifurcated embedded derivatives
Derivative Asset
Derivatives not designated as hedging instruments	0	0
Not designated as hedging instrument | Derivative liabilities
Derivative Liability
Derivatives not designated as hedging instruments	91,413	84,811
Not designated as hedging instrument | Derivative liabilities | Customer derivative positions
Derivative Liability
Derivatives not designated as hedging instruments	77,635	68,384
Not designated as hedging instrument | Derivative liabilities | Dealer offsets to customer derivative positions
Derivative Liability
Derivatives not designated as hedging instruments	1,337	4,597
Not designated as hedging instrument | Derivative liabilities | Risk participations
Derivative Liability
Derivatives not designated as hedging instruments	6	8
Not designated as hedging instrument | Derivative liabilities | Mortgage banking - loan commitments
Derivative Liability
Derivatives not designated as hedging instruments	0	0
Not designated as hedging instrument | Derivative liabilities | Mortgage banking - forward sales commitment
Derivative Liability
Derivatives not designated as hedging instruments	180	658
Not designated as hedging instrument | Derivative liabilities | Bifurcated embedded derivatives
Derivative Liability
Derivatives not designated as hedging instruments	0	0
Not designated as hedging instrument | Derivative liabilities | Dealer offsets to bifurcated embedded derivatives
Derivative Liability
Derivatives not designated as hedging instruments	$ 12,255	$ 11,164

XML

Derivatives and Hedging Activities - Narrative (Details) $ in Thousands	Mar. 31, 2024 USD ($) contract
Derivative Instruments [Line Items]
Gains to be reclassified from accumulated other comprehensive income into earnings over the next twelve months | $	$ 5,320
Economic hedge, not designated as hedging instrument | Interest rate swaps
Derivative Instruments [Line Items]
Number of derivative contracts | contract	3

XML

Derivatives and Hedging Activities - Effect of Derivatives in Hedging Relationships (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value Hedging | Interest revenue- investment securities | Interest Revenue
Fair value hedges:
Amounts related to interest settlements on derivatives	$ 2,856	$ 0
Gain recognized on derivative	9,462	0
Loss recognized on hedged items	(9,798)	0
Net income recognized on AFS securities fair value hedges	2,520	0
Fair Value Hedging | Interest revenue - loans, including fees | Interest Revenue
Fair value hedges:
Amounts related to interest settlements on derivatives	1,298	0
Gain recognized on derivative	2,158	0
Loss recognized on hedged items	(2,295)	0
Net income recognized on AFS securities fair value hedges	1,161	0
Cash flow hedging | Interest expense- long term debt | Interest Expense
Fair value hedges:
Net income recognized on AFS securities fair value hedges	1,440	822
Premium amortization expense excluded from assessment of hedge effectiveness	$ 118	$ 116

XML

Derivatives and Hedging Activities - Carrying Amount and Cumulative Fair Value Hedging Adjustments on Hedged Liability (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Hedge Accounting Basis Adjustment	$ (402)	$ 1,893
Fair Value Hedging | Debt Securities AFS
Derivative [Line Items]
Carrying Amount	783,148	789,908
Hedge Accounting Basis Adjustment	(14,471)	(4,673)
Fair Value Hedging | Loans and leases held for investment
Derivative [Line Items]
Carrying Amount	5,408,116	1,017,379
Hedge Accounting Basis Adjustment	(402)	1,893
Fair Value Hedging | Debt Securities AFS
Derivative [Line Items]
Hedged Portfolio Layer	649,520	655,511
Fair Value Hedging | Loans and leases held for investment
Derivative [Line Items]
Hedged Portfolio Layer	$ 1,650,000	$ 150,000

XML

Derivatives and Hedging Activities - Gains and Losses Recognized in Income on Derivatives Not Designated as Hedging Instruments (Details) - Not designated as hedging instrument - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ 466	$ 1,049
Customer derivatives and dealer offsets
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(245)	367
Bifurcated embedded derivatives and dealer offsets
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(192)	(533)
Mortgage banking derivatives
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	901	1,227
Risk participations
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ 2	$ (12)

XML

Goodwill and Other Intangible Assets - Carrying Amount (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Goodwill and other intangible assets
Total intangible assets subject to amortization	$ 66,286	$ 70,173
Goodwill	921,253	919,914	$ 896,718	$ 751,174
Total goodwill and other intangible assets, net	987,539	990,087
Core deposit intangible
Goodwill and other intangible assets
Intangibles subject to amortization, gross	100,694	104,174
Less: accumulated amortization	(40,704)	(40,495)
Total intangible assets subject to amortization	59,990	63,679
Customer relationship intangible
Goodwill and other intangible assets
Intangibles subject to amortization, gross	8,400	8,400
Less: accumulated amortization	(2,104)	(1,906)
Total intangible assets subject to amortization	$ 6,296	$ 6,494

XML

Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 919,914	$ 751,174
Acquisitions	0	145,544
Measurement period adjustment - First Miami	1,340
Goodwill, ending balance	921,253	896,718
Accumulated impairment losses on goodwill	306,000	306,000	$ 306,000	$ 306,000
First Miami Bancorp, Inc
Goodwill [Roll Forward]
Measurement period adjustment - First Miami	1,339	$ 0
Goodwill, ending balance	$ 24,500

XML

Goodwill and Other Intangible Assets - Estimated Aggregate Amortization Expense for Future Periods (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Estimated Aggregate Amortization Expense For Future Periods
Remainder of 2024	$ 10,960
2025	12,774
2026	10,896
2027	9,018
2028	7,236
Thereafter	15,402
Total intangible assets subject to amortization	$ 66,286	$ 70,173

XML

Assets and Liabilities Measured at Fair Value - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Debt securities available-for-sale	$ 3,393,399	$ 3,331,084
Mortgage loans held for sale	38,140	33,008
U.S. Treasuries
Assets:
Debt securities available-for-sale	398,780	387,349
U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	297,426	267,500
State and political subdivisions
Assets:
Debt securities available-for-sale	163,263	164,049
Corporate bonds
Assets:
Debt securities available-for-sale	195,900	201,222
Asset-backed securities
Assets:
Debt securities available-for-sale	147,056	161,712
Recurring
Assets:
Equity securities with readily determinable fair values	6,340	7,395
Mortgage loans held for sale	38,140	33,008
Deferred compensation plan assets	13,124	12,791
Servicing rights for SBA/USDA loans	5,507	5,444
Residential mortgage servicing rights	37,358	35,897
Derivative financial instruments	53,202	50,352
Total assets	3,547,070	3,475,971
Liabilities:
Deferred compensation plan liability	13,119	12,838
Derivative financial instruments	91,413	84,811
Total liabilities	104,532	97,649
Recurring | U.S. Treasuries
Assets:
Debt securities available-for-sale	398,780	387,349
Recurring | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	297,426	267,500
Recurring | State and political subdivisions
Assets:
Debt securities available-for-sale	163,263	164,049
Recurring | Residential MBS
Assets:
Debt securities available-for-sale	1,517,893	1,507,598
Recurring | Commercial MBS
Assets:
Debt securities available-for-sale	673,081	641,654
Recurring | Corporate bonds
Assets:
Debt securities available-for-sale	195,900	201,222
Recurring | Asset-backed securities
Assets:
Debt securities available-for-sale	147,056	161,712
Recurring | Level 1
Assets:
Equity securities with readily determinable fair values	4,553	5,767
Mortgage loans held for sale	0	0
Deferred compensation plan assets	13,124	12,791
Servicing rights for SBA/USDA loans	0	0
Residential mortgage servicing rights	0	0
Derivative financial instruments	0	0
Total assets	416,457	405,907
Liabilities:
Deferred compensation plan liability	13,119	12,838
Derivative financial instruments	0	0
Total liabilities	13,119	12,838
Recurring | Level 1 | U.S. Treasuries
Assets:
Debt securities available-for-sale	398,780	387,349
Recurring | Level 1 | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | State and political subdivisions
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Residential MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Commercial MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Corporate bonds
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Asset-backed securities
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 2
Assets:
Equity securities with readily determinable fair values	1,787	1,628
Mortgage loans held for sale	38,140	33,008
Deferred compensation plan assets	0	0
Servicing rights for SBA/USDA loans	0	0
Residential mortgage servicing rights	0	0
Derivative financial instruments	40,391	39,710
Total assets	3,072,777	3,015,876
Liabilities:
Deferred compensation plan liability	0	0
Derivative financial instruments	78,228	73,639
Total liabilities	78,228	73,639
Recurring | Level 2 | U.S. Treasuries
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 2 | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	297,426	267,500
Recurring | Level 2 | State and political subdivisions
Assets:
Debt securities available-for-sale	163,263	164,049
Recurring | Level 2 | Residential MBS
Assets:
Debt securities available-for-sale	1,517,893	1,507,598
Recurring | Level 2 | Commercial MBS
Assets:
Debt securities available-for-sale	673,081	641,654
Recurring | Level 2 | Corporate bonds
Assets:
Debt securities available-for-sale	193,740	199,017
Recurring | Level 2 | Asset-backed securities
Assets:
Debt securities available-for-sale	147,056	161,712
Recurring | Level 3
Assets:
Equity securities with readily determinable fair values	0	0
Mortgage loans held for sale	0	0
Deferred compensation plan assets	0	0
Servicing rights for SBA/USDA loans	5,507	5,444
Residential mortgage servicing rights	37,358	35,897
Derivative financial instruments	12,811	10,642
Total assets	57,836	54,188
Liabilities:
Deferred compensation plan liability	0	0
Derivative financial instruments	13,185	11,172
Total liabilities	13,185	11,172
Recurring | Level 3 | U.S. Treasuries
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | State and political subdivisions
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | Residential MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | Commercial MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | Corporate bonds
Assets:
Debt securities available-for-sale	2,160	2,205
Recurring | Level 3 | Asset-backed securities
Assets:
Debt securities available-for-sale	$ 0	$ 0

XML

Assets and Liabilities Measured at Fair Value - Reconciliation of Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details) - Recurring - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Derivative Liabilities
Liabilities:
Beginning balance	$ 11,172	$ 12,840
Business combinations	0	0
Additions	0	3
Transfers from Level 2	925	0
Sales and settlements	0	0
Fair value adjustments included in OCI	0	0
Fair value adjustments included in earnings	1,088	(1,648)
Ending balance	13,185	11,195
Derivative Assets
Assets:
Beginning balance	10,642	11,513
Business combinations	0	0
Additions	1,466	0
Transfers from Level 2	484	0
Sales and settlements	(923)	(11)
Fair value adjustments included in OCI	0	0
Fair value adjustments included in earnings	1,142	(154)
Ending balance	12,811	11,348
SBA/USDA loan servicing rights
Assets:
Beginning balance	5,444	5,188
Business combinations	0	95
Additions	170	460
Transfers from Level 2	0	0
Sales and settlements	(241)	(220)
Fair value adjustments included in OCI	0	0
Fair value adjustments included in earnings	134	766
Ending balance	5,507	6,289
Residential mortgage servicing rights
Assets:
Beginning balance	35,897	36,559
Business combinations	0	0
Additions	718	632
Transfers from Level 2	0	0
Sales and settlements	(760)	(452)
Fair value adjustments included in OCI	0	0
Fair value adjustments included in earnings	1,503	(658)
Ending balance	37,358	36,081
Corporate Bonds
Assets:
Beginning balance	2,205	2,212
Business combinations	0	0
Additions	0	0
Transfers from Level 2	0	0
Sales and settlements	0	0
Fair value adjustments included in OCI	(45)	15
Fair value adjustments included in earnings	0	0
Ending balance	$ 2,160	$ 2,227

XML

Assets and Liabilities Measured at Fair Value - Quantitative Information About Level 3 Fair Value Measurements for Fair Value on a Recurring Basis (Details) - Recurring - Level 3	Mar. 31, 2024	Dec. 31, 2023
SBA/USDA loan servicing rights | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.036	0.084
SBA/USDA loan servicing rights | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.250	0.250
SBA/USDA loan servicing rights | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.127	0.162
SBA/USDA loan servicing rights | Prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.020	0.035
SBA/USDA loan servicing rights | Prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.380	0.374
SBA/USDA loan servicing rights | Prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.193	0.185
Residential mortgage servicing rights | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.100	0.100
Residential mortgage servicing rights | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.125	0.150
Residential mortgage servicing rights | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.101	0.100
Residential mortgage servicing rights | Prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.065	0.065
Residential mortgage servicing rights | Prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.300	0.299
Residential mortgage servicing rights | Prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.079	0.080
Corporate bonds | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.066	0.061
Corporate bonds | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.072	0.067
Corporate bonds | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.070	0.065
Derivative assets - mortgage | Pull through rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	0.640	0.600
Derivative assets - mortgage | Pull through rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	1	1
Derivative assets - mortgage | Pull through rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	0.905	0.905

XML

Assets and Liabilities Measured at Fair Value - Loans Held for Sale at Fair Value Under the Fair Value Option (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Mortgage Loans Held for Sale
Outstanding principal balance	$ 36,951		$ 31,788
Fair value	38,140		$ 33,008
Mortgage loan gains and other related fees	$ (31)	$ 231

XML

Assets and Liabilities Measured at Fair Value - Presentation of Assets Measured at Fair Value on Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	$ 15,579	$ 36,984
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	$ 15,579	$ 36,984

XML

Assets and Liabilities Measured at Fair Value - Narrative (Details)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Maximum remaining maturity of financial instruments having no defined maturity	180 days

XML

Assets and Liabilities Measured at Fair Value - Carrying Amount and Fair Values for Other Financial Instruments that are not Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
HTM debt securities	$ 2,042,912	$ 2,095,620
Carrying Amount
Assets:
HTM debt securities	2,465,133	2,490,848
Loans and leases, net	18,163,910	18,110,684
Liabilities:
Deposits	23,332,009	23,310,611
Long-term debt	324,854	324,823
Fair Value
Assets:
HTM debt securities	2,042,912	2,095,620
Loans and leases, net	17,622,063	17,585,073
Liabilities:
Deposits	23,320,033	23,305,223
Long-term debt	310,182	310,060
Fair Value | Level 1
Assets:
HTM debt securities	17,779	17,950
Loans and leases, net	0	0
Liabilities:
Deposits	0	0
Long-term debt	0	0
Fair Value | Level 2
Assets:
HTM debt securities	2,025,133	2,077,670
Loans and leases, net	0	0
Liabilities:
Deposits	23,320,033	23,305,223
Long-term debt	0	0
Fair Value | Level 3
Assets:
HTM debt securities	0	0
Loans and leases, net	17,622,063	17,585,073
Liabilities:
Deposits	0	0
Long-term debt	$ 310,182	$ 310,060

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Stock-Based Compensation - Narrative (Details) - USD ($) shares in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan vesting period (in years)	4 years
Plan exercisable period (in years)	10 years
Additional awards remaining available under plan (in shares)	2,130
Income tax benefit related to expense for share-based awards	$ 614,000	$ 634,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	0	0
Restricted stock units and performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 22,300,000
Recognition period for unrecognized compensation expense (in years)	2 years 7 months 6 days
Restricted stock units and performance stock units | Employees | Salaries and employee benefits expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 2,220,000	2,360,000
Restricted stock units and performance stock units | Directors | Other operating expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 183,000	$ 122,000

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Stock-Based Compensation - Restricted Stock Units and Options Outstanding and Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares
Options, Shares
Beginning balance, outstanding (in shares) | shares	406,737
Granted (in shares) | shares	0
Released / Exercised (in shares) | shares	(55,654)
Cancelled (in shares) | shares	(2,353)
Ending balance, outstanding (in shares) | shares	348,730
Vested / Exercisable (in shares) | shares	348,730
Options, Weighted Average Exercise Price
Beginning balance, outstanding (in dollars per share) | $ / shares	$ 21.19
Granted (in dollars per share) | $ / shares	0
Released / Exercised (in dollars per shares) | $ / shares	20.32
Cancelled (in dollars per share) | $ / shares	26.05
Ending balance, outstanding (in dollars per share) | $ / shares	21.29
Vested / Exercisable (in dollars per share) | $ / shares	$ 21.29
Outstanding, Weighted Average Remaining Term (in years)	5 years
Vested / Exercisable, Weighted Average Remaining Term (in years)	5 years
Released / Exercised during period, Aggregate Intrinsic Value | $	$ 375
Outstanding, Aggregate Intrinsic Value | $	1,755
Vested / Exercisable, Aggregate Intrinsic Value | $	$ 1,755
Restricted Stock Unit Awards
Shares
Outstanding, beginning balance (in shares) | shares	929,367
Granted (in shares) | shares	171,905
Released / Exercised (in shares) | shares	(42,467)
Cancelled (in shares) | shares	(55,672)
Outstanding, ending balance (in shares) | shares	1,003,133
Vested / Exercisable (in shares) | shares	0
Weighted- Average Grant- Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 28.85
Granted (in dollars per share) | $ / shares	28.42
Released / Exercised (in dollars per share) | $ / shares	30.67
Cancelled (in dollars per share) | $ / shares	27.55
Outstanding, ending balance (in dollars per share) | $ / shares	28.80
Vested / Exercisable (in dollars per share) | $ / shares	$ 0
Aggregate Intrinsic Value, Released / Exercised | $	$ 1,175
Aggregate Intrinsic Value, Outstanding | $	$ 26,402

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Reclassifications Out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities losses, net	$ 0	$ (1,644)
Income tax expense	(18,204)	(17,791)
Investment securities interest revenue	336,728	279,487
Long-term debt interest expense	(3,795)	(3,896)
Salaries and employee benefits expense	(84,985)	(78,698)
Other expense	(8,176)	(8,348)
Total before tax	80,835	80,091
Net of tax	62,631	62,300
Reclassifications Out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	(531)	(2,951)
Reclassifications Out of AOCI | Realized losses on AFS securities:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities losses, net	0	(1,644)
Income tax expense	0	374
Net of tax	0	(1,270)
Reclassifications Out of AOCI | Amortization of unrealized losses on HTM securities transferred from AFS:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	493	720
Investment securities interest revenue	(2,063)	(2,968)
Net of tax	(1,570)	(2,248)
Reclassifications Out of AOCI | Reclassifications related to derivative instruments accounted for as cash flow hedges:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	(368)	(210)
Long-term debt interest expense	1,440	822
Net of tax	1,072	612
Reclassifications Out of AOCI | Amortization of defined benefit pension plan net periodic pension cost components:
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	11	16
Net of tax	(33)	(45)
Reclassifications Out of AOCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits expense	$ (44)	$ (61)

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Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Computation of basic and diluted earnings per share
Net income	$ 62,631	$ 62,300
Dividends on preferred stock	(1,573)	(1,719)
Earnings allocated to participating securities	(345)	(339)
Net income available to common shareholders, basic	60,713	60,242
Net income available to common shareholders, diluted	$ 60,713	$ 60,242
Weighted average shares outstanding:
Basic (in shares)	119,662	115,451
Effect of dilutive securities:
Diluted (in shares)	119,743	115,715
Net income per common share:
Basic (in dollars per share)	$ 0.51	$ 0.52
Diluted (in dollars per share)	$ 0.51	$ 0.52
Stock options
Effect of dilutive securities:
Restricted stock units (in shares)	81	233
Restricted stock units
Effect of dilutive securities:
Restricted stock units (in shares)	0	31

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Earnings Per Share - Narrative (Details) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Potentially dilutive instruments outstanding not included in EPS analysis (in shares)	984	0

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Regulatory Matters (Details) $ in Thousands	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital, Minimum	0.045
CET1 capital, Well-Capitalized	0.065
CET1 capital	0.1239	0.1216
Tier 1 capital, Minimum	0.060
Tier 1 capital, Well-Capitalized	0.080
Tier 1 capital	0.1283	0.1260
Total capital, Minimum	0.080
Total capital, Well-Capitalized	0.100
Total capital	0.1464	0.1449
Leverage ratio, Minimum	0.040
Leverage ratio, Well-Capitalized	0.050
Leverage ratio	0.0969	0.0947
CET1 capital	$ 2,468,825	$ 2,432,518
Tier 1 capital	2,557,091	2,520,784
Total capital	2,917,664	2,898,474
Risk-weighted assets	19,933,869	20,007,236
Average total assets for the leverage ratio	$ 26,400,773	$ 26,621,561
United Community Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	0.1260	0.1222
Tier 1 capital	0.1260	0.1222
Total capital	0.1363	0.1323
Leverage ratio	0.0950	0.0917
CET1 capital	$ 2,502,765	$ 2,435,962
Tier 1 capital	2,502,765	2,435,962
Total capital	2,707,793	2,638,009
Risk-weighted assets	19,861,459	19,933,429
Average total assets for the leverage ratio	$ 26,351,912	$ 26,563,946

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Commitments and Contingencies - Contractual Amount of Off-balance Sheet Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Commitments to extend credit
Financial instruments whose contract amounts represent credit risk:
Financial instruments whose contract amounts represent credit risk:	$ 4,075,892	$ 4,305,483
Letters of credit
Financial instruments whose contract amounts represent credit risk:
Financial instruments whose contract amounts represent credit risk:	$ 66,587	$ 61,808

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Commitments and Contingencies - Tax Credit and Certain Equity Method Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Renewable energy investments:
Other Commitments [Line Items]
Amount of future funding commitments	$ 14,406	$ 14,406
Fintech funds and certain other equity method investments:
Other Commitments [Line Items]
Amount of future funding commitments	28,313	25,008
Other assets | Investments in LIHTC:
Other Commitments [Line Items]
Investments in LIHTC: Carrying amount	57,728	48,867
Other assets | Renewable energy investments:
Other Commitments [Line Items]
Carrying amount	4,594	18,631
Other assets | Fintech funds and certain other equity method investments:
Other Commitments [Line Items]
Carrying amount	34,401	33,720
Other liabilities | Investments in LIHTC:
Other Commitments [Line Items]
Investments in LIHTC: Amount of future funding commitments included in carrying amount	22,178	14,176
Loans and leases held for investment | Investments in LIHTC:
Other Commitments [Line Items]
Investments in LIHTC: Lending exposure	$ 11,691	$ 803

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Commitments and Contingencies - Summary of Tax Credits and Amortization Expense (Details) - Investments in LIHTC: - Income tax expense $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Other Commitments [Line Items]
Income tax credits and other income tax benefits	$ (1,996)
Amortization expense	$ 1,831