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 June 30, 2021

Commission file number 1-10312

______________________________

SYNOVUS FINANCIAL CORP.

(Exact name of registrant as specified in its charter)

______________________________

 

Georgia	58-1134883
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1111 Bay Avenue, Suite 500
	Columbus,	Georgia	31901
(Address of principal executive offices)			(Zip Code)

Registrant’s telephone number, including area code: (706) 641-6500

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $1.00 Par Value	SNV	New York Stock Exchange
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D	SNV - PrD	New York Stock Exchange
Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E	SNV - PrE	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Sections 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 Data 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 the 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 ☒

As of July 31, 2021, 146,445,522 shares of the registrant's common stock, $1.00 par value, were outstanding.

Table of Contents

			Page
Part I.	Financial Information
		Index of Defined Terms	i
	Item 1.	Financial Statements (Unaudited)
		Consolidated Balance Sheets as of June 30, 2021 and December 31, 2020	1
		Consolidated Statements of Income for the Three and Six Months Ended June 30, 2021 and 2020	2
		Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, 2021 and 2020	3
		Consolidated Statements of Changes in Shareholders' Equity for the Three and Six Months Ended June 30, 2021 and 2020	4
		Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2021 and 2020	6
		Notes to Unaudited Interim Consolidated Financial Statements	7
	Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	35
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	61
	Item 4.	Controls and Procedures	61
Part II.	Other Information
	Item 1.	Legal Proceedings	62
	Item 1A.	Risk Factors	62
	Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	62
	Item 3.	Defaults Upon Senior Securities	62
	Item 4.	Mine Safety Disclosures	62
	Item 5.	Other Information	62
	Item 6.	Exhibits	63
	Signatures		64

SYNOVUS FINANCIAL CORP.

INDEX OF DEFINED TERMS

Throughout this discussion, references to "Synovus", "we", "our", "us", "the Company" and similar terms refer to the consolidated entity consisting of Synovus Financial Corp. and its subsidiaries unless the context indicates that we refer only to the Parent Company, Synovus Financial Corp. When we refer to the "Bank" or "Synovus Bank" we mean our only bank subsidiary, Synovus Bank.

ACL – Allowance for credit losses (ALL, reserve on unfunded loan commitments, and reserve, if required, on debt securities)

ALCO – Synovus' Asset Liability Management Committee

ALL – Allowance for loan losses

AOCI – Accumulated other comprehensive income

ARRC – Alternative Reference Rates Committee

ASC – Accounting Standards Codification

ASU – Accounting Standards Update

ATM – Automatic teller machine

Basel III – The third Basel Accord developed by the Basel Committee on Banking Supervision to strengthen existing regulatory capital requirements

BOLI – Bank-owned life insurance

bp(s) – Basis point(s)

C&I – Commercial and industrial

CARES Act – The Coronavirus Aid, Relief, and Economic Security Act

CDI – Core Deposit Intangible

CECL – Current expected credit losses

CET1 – Common Equity Tier 1 Capital defined by Basel III capital rules

CMO – Collateralized mortgage obligation

Code – Internal Revenue Code, as amended

Company – Synovus Financial Corp. and its wholly-owned subsidiaries, except where the context requires otherwise

Covered Litigation – Certain Visa litigation for which Visa is indemnified by Visa USA members

COVID-19 – Coronavirus disease 2019

CRA – Community Reinvestment Act

CRE – Commercial real estate

Dodd-Frank Act – The Dodd-Frank Wall Street Reform and Consumer Protection Act

EVE – Economic value of equity

Exchange Act – Securities Exchange Act of 1934, as amended

FASB – Financial Accounting Standards Board

FCA – Financial Conduct Authority

FDIC – Federal Deposit Insurance Corporation

Federal Reserve Bank – The 12 banks that are the operating arms of the U.S. central bank. They implement the policies of the Federal Reserve Board and also conduct economic research

Federal Reserve Board – The 7-member Board of Governors that oversees the Federal Reserve System, establishes monetary policy (interest rates, credit, etc.), and monitors the economic health of the country. Its members are appointed by the President subject to Senate confirmation, and serve 14-year terms

i

Federal Reserve System – The 12 Federal Reserve Banks, with each one serving member banks in its own district. This system, supervised by the Federal Reserve Board, has broad regulatory powers over the money supply and the credit structure

FFIEC – Federal Financial Institutions Examination Council

FFIEC Retail Credit Classification Policy – FFIEC Uniform Retail Credit Classification and Account Management Policy

FHLB – Federal Home Loan Bank

FICO – Fair Isaac Corporation

FMS – Financial Management Services, a division of Synovus Bank

FTE – Fully taxable-equivalent

FTP – Funds transfer pricing

GA DBF – Georgia Department of Banking and Finance

GAAP – Generally Accepted Accounting Principles in the United States of America

GGL – Government guaranteed loans

Global One – Entaire Global Companies, Inc., the parent company of Global One Financial, Inc., as acquired by Synovus in 2016

HELOC – Home equity line of credit

Interagency Supervisory Guidance – Interagency Supervisory Guidance on Allowance for Loan and Lease Losses Estimation Practices for Loans and Lines of Credit Secured by Junior Liens on 1-4 Family Residential Properties

LIBOR – London Interbank Offered Rate

LIHTC – Low Income Housing Tax Credit

LTV – Loan-to-collateral value ratio

MBS – Mortgage-backed security

MPS – Merchant processing servicer(s)

NAICS – North American Industry Classification System

nm – not meaningful

NPA – Non-performing assets

NPL – Non-performing loans

NSF – Non-sufficient funds

OCI – Other comprehensive income

ORE – Other real estate

P&I – Principal and interest

Parent Company – Synovus Financial Corp.

PPP – Paycheck Protection Program established as part of the CARES Act and launched on April 3, 2020 by the SBA and Treasury

SBA – Small Business Administration

SBIC – Small Business Investment Company

SEC – U.S. Securities and Exchange Commission

Securities Act – Securities Act of 1933, as amended

Series D Preferred Stock – Synovus' Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D, $25 liquidation preference

Series E Preferred Stock – Synovus' Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E, $25 liquidation preference

ii

SOFR – Secured Overnight Financing Rate

Synovus – Synovus Financial Corp.

Synovus Bank – A Georgia state-chartered bank and wholly-owned subsidiary of Synovus through which Synovus conducts its banking operations

Synovus' 2020 Form 10-K – Synovus' Annual Report on Form 10-K for the year ended December 31, 2020

Synovus Forward – Synovus' revenue growth and expense efficiency initiatives announced in January of 2020

Synovus Securities – Synovus Securities, Inc., a wholly-owned subsidiary of Synovus

Synovus Trust – Synovus Trust Company, N.A., a wholly-owned subsidiary of Synovus Bank

TDR – Troubled debt restructuring (as defined in ASC 310-40)

UPB – Unpaid principal balance

Visa – The Visa U.S.A., Inc. card association or its affiliates, collectively

Visa Class A shares – Class A shares of common stock issued by Visa are publicly traded shares which are not subject to restrictions on sale

Visa Class B shares – Class B shares of common stock issued by Visa which are subject to restrictions with respect to sale until all of the Covered Litigation has been settled. Class B shares will be convertible into Visa Class A shares using a then-current conversion ratio upon the lifting of restrictions with respect to sale of Visa Class B shares

Visa derivative – A derivative contract with the purchaser of Visa Class B shares which provides for settlements between the purchaser and Synovus based upon a change in the ratio for conversion of Visa Class B shares into Visa Class A shares

iii

PART I. FINANCIAL INFORMATION

ITEM 1. - FINANCIAL STATEMENTS

SYNOVUS FINANCIAL CORP.

CONSOLIDATED BALANCE SHEETS

(unaudited)

(in thousands, except share and per share data)	June 30, 2021		December 31, 2020
ASSETS
Cash and due from banks	$	560,396	$	531,579
Interest-bearing funds with Federal Reserve Bank	2,598,213		3,586,565
Interest earning deposits with banks	21,513		20,944
Federal funds sold and securities purchased under resale agreements	82,554		113,829
Total cash, cash equivalents, and restricted cash	3,262,676		4,252,917
Investment securities available for sale, at fair value	9,442,170		7,962,438
Loans held for sale (includes $202,216 and $216,647 measured at fair value, respectively)	750,916		760,123
Loans, net of deferred fees and costs	38,236,018		38,252,984
Allowance for loan losses	(516,708)		(605,736)
Loans, net	37,719,310		37,647,248
Cash surrender value of bank-owned life insurance	1,059,235		1,049,373
Premises, equipment, and software, net	446,447		463,959
Goodwill	452,390		452,390
Other intangible assets, net	40,354		45,112
Other assets	1,765,161		1,760,599
Total assets	$	54,938,659	$	54,394,159
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities
Deposits:
Non-interest-bearing deposits	$	15,345,629	$	13,477,854
Interest-bearing deposits	31,826,333		33,213,717
Total deposits	47,171,962		46,691,571
Federal funds purchased and securities sold under repurchase agreements	194,786		227,922
Other short-term borrowings	—		7,717
Long-term debt	1,203,293		1,202,494
Other liabilities	1,130,904		1,103,121
Total liabilities	49,700,945		49,232,825
Shareholders' Equity
Preferred stock - no par value; authorized 100,000,000 shares; issued 22,000,000	537,145		537,145
Common stock - $1.00 par value; authorized 342,857,143 shares; issued 169,107,609 and 168,132,522; outstanding 147,071,532 and 148,039,495	169,108		168,133
Additional paid-in capital	3,872,949		3,851,208
Treasury stock, at cost; 22,036,077 and 20,093,027 shares	(824,197)		(731,806)
Accumulated other comprehensive income, net	45,726		158,635
Retained earnings	1,436,983		1,178,019
Total shareholders' equity	5,237,714		5,161,334
Total liabilities and shareholders' equity	$	54,938,659	$	54,394,159

See accompanying notes to unaudited interim consolidated financial statements.

1

SYNOVUS FINANCIAL CORP.

CONSOLIDATED STATEMENTS OF INCOME

(unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share data)	2021		2020		2021		2020
Interest income:
Loans, including fees	$	371,288	$	401,997	$	743,779	$	829,334
Investment securities available for sale	33,298		44,935		62,755		96,588
Loans held for sale	6,609		1,914		13,071		2,706
Federal Reserve Bank balances	709		394		1,383		1,902
Other earning assets	839		2,329		1,572		4,936
Total interest income	412,743		451,569		822,560		935,466
Interest expense:
Deposits	19,371		56,474		44,389		142,476
Federal funds purchased, securities sold under repurchase agreements, and other short-term borrowings	34		1,778		69		7,710
Long-term debt	11,478		16,751		22,386		35,454
Total interest expense	30,883		75,003		66,844		185,640
Net interest income	381,860		376,566		755,716		749,826
(Reversal of) provision for credit losses	(24,598)		141,851		(43,173)		300,573
Net interest income after (reversal of) provision for credit losses	406,458		234,715		798,889		449,253
Non-interest revenue:
Service charges on deposit accounts	21,414		15,567		41,448		36,255
Fiduciary and asset management fees	18,805		14,950		36,759		30,124
Card fees	13,304		9,186		25,300		20,136
Brokerage revenue	13,926		9,984		26,899		22,383
Mortgage banking income	13,842		23,530		36,157		35,757
Capital markets income	3,335		6,050		10,840		17,294
Income from bank-owned life insurance	7,188		7,756		16,031		13,794
Investment securities gains (losses), net	—		69,409		(1,990)		78,144
Other non-interest revenue	15,273		17,052		26,599		23,454
Total non-interest revenue	107,087		173,484		218,043		277,341
Non-interest expense:
Salaries and other personnel expense	160,567		159,597		322,044		309,274
Net occupancy, equipment, and software expense	41,825		41,727		82,959		83,921
Third-party processing and other services	24,419		22,666		44,451		45,366
Professional fees	7,947		15,305		17,031		25,980
FDIC insurance and other regulatory fees	5,547		6,851		11,127		12,129
Other operating expenses	30,226		37,995		60,053		83,751
Total non-interest expense	270,531		284,141		537,665		560,421
Income before income taxes	243,014		124,058		479,267		166,173
Income tax expense	56,814		30,866		105,975		34,461
Net income	186,200		93,192		373,292		131,712
Less: Preferred stock dividends	8,291		8,291		16,581		16,581
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Net income per common share, basic	$	1.20	$	0.58	$	2.41	$	0.78
Net income per common share, diluted	1.19		0.57		2.38		0.78
Weighted average common shares outstanding, basic	148,113		147,288		148,289		147,300
Weighted average common shares outstanding, diluted	149,747		147,733		149,764		148,067

See accompanying notes to unaudited interim consolidated financial statements.

2

SYNOVUS FINANCIAL CORP.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(unaudited)

	Three Months Ended June 30,
	2021						2020
(in thousands)	Before-tax Amount		Income Tax		Net of Tax Amount		Before-tax Amount		Income Tax		Net of Tax Amount
Net income	$	243,014	$	(56,814)	$	186,200	$	124,058	$	(30,866)	$	93,192
Unrealized gains (losses) on investment securities available for sale:
Net unrealized gains (losses) arising during the period	46,342		(11,725)		34,617		(11,939)		3,092		(8,847)
Reclassification adjustment for realized (gains) losses included in net income	—		—		—		(69,409)		17,977		(51,432)
Net change	46,342		(11,725)		34,617		(81,348)		21,069		(60,279)
Unrealized gains (losses) on derivative instruments designated as cash flow hedges:
Net unrealized gains (losses) arising during the period	(1,923)		486		(1,437)		8,823		(2,285)		6,538
Reclassification adjustment for realized (gains) losses included in net income	(3,657)		925		(2,732)		(270)		70		(200)
Net change	(5,580)		1,411		(4,169)		8,553		(2,215)		6,338
Total other comprehensive income (loss)	$	40,762	$	(10,314)	$	30,448	$	(72,795)	$	18,854	$	(53,941)
Comprehensive income					$	216,648					$	39,251
	Six Months Ended June 30,
	2021						2020
(in thousands)	Before-tax Amount		Income Tax		Net of Tax Amount		Before-tax Amount		Income Tax		Net of Tax Amount
Net income	$	479,267	$	(105,975)	$	373,292	$	166,173	$	(34,461)	$	131,712
Unrealized gains (losses) on investment securities available for sale:
Net unrealized gains (losses) arising during the period	(118,899)		31,056		(87,843)		146,403		(37,919)		108,484
Reclassification adjustment for realized (gains) losses included in net income	1,990		(515)		1,475		(78,144)		20,239		(57,905)
Net change	(116,909)		30,541		(86,368)		68,259		(17,680)		50,579
Unrealized gains (losses) on derivative instruments designated as cash flow hedges:
Net unrealized gains (losses) arising during the period	(30,980)		8,360		(22,620)		117,462		(30,423)		87,039
Reclassification adjustment for realized (gains) losses included in net income	(5,256)		1,335		(3,921)		(390)		101		(289)
Net change	(36,236)		9,695		(26,541)		117,072		(30,322)		86,750
Total other comprehensive income (loss)	$	(153,145)	$	40,236	$	(112,909)	$	185,331	$	(48,002)	$	137,329
Comprehensive income					$	260,383					$	269,041

See accompanying notes to unaudited interim consolidated financial statements.

3

SYNOVUS FINANCIAL CORP.

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

(unaudited)

(in thousands, except per share data)	Preferred Stock		Common Stock		Additional Paid-in Capital		Treasury Stock		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total
Balance at March 31, 2021	$	537,145	$	168,978	$	3,864,281	$	(731,690)	$	15,278	$	1,307,725	$	5,161,717
Net income	—		—		—		—		—		186,200		186,200
Other comprehensive income, net of income taxes	—		—		—		—		30,448		—		30,448
Cash dividends declared on common stock - $0.33 per share	—		—		—		—		—		(48,651)		(48,651)
Cash dividends declared on preferred stock(1)	—		—		—		—		—		(8,291)		(8,291)
Repurchases of common stock including costs to repurchase	—		—		—		(92,507)		—		—		(92,507)
Restricted share unit vesting and taxes paid related to net share settlement	—		35		(429)		—		—		—		(394)
Stock options exercised, net	—		95		2,232		—		—		—		2,327
Share-based compensation expense	—		—		6,865		—		—		—		6,865
Balance at June 30, 2021	$	537,145	$	169,108	$	3,872,949	$	(824,197)	$	45,726	$	1,436,983	$	5,237,714
Balance at March, 31, 2020	$	537,145	$	167,360	$	3,821,357	$	(731,806)	$	256,911	$	1,014,238	$	5,065,205
Net income	—		—		—		—		—		93,192		93,192
Other comprehensive loss, net of income taxes	—		—		—		—		(53,941)		—		(53,941)
Cash dividends declared on common stock - $0.33 per share	—		—		—		—		—		(48,612)		(48,612)
Cash dividends declared on preferred stock(1)	—		—		—		—		—		(8,291)		(8,291)
Restricted share unit vesting and taxes paid related to net share settlement	—		34		(181)		—		—		—		(147)
Stock options exercised, net	—		12		200		—		—		—		212
Share-based compensation expense	—		—		5,350		—		—		—		5,350
Balance at June 30, 2020	$	537,145	$	167,406	$	3,826,726	$	(731,806)	$	202,970	$	1,050,527	$	5,052,968

4

(in thousands, except per share data)	Preferred Stock		Common Stock		Additional Paid-in Capital		Treasury Stock		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total
Balance at December 31, 2020	$	537,145	$	168,133	$	3,851,208	$	(731,806)	$	158,635	$	1,178,019	$	5,161,334
Net income	—		—		—		—		—		373,292		373,292
Other comprehensive loss, net of income taxes	—		—		—		—		(112,909)		—		(112,909)
Cash dividends declared on common stock - $0.66 per share	—		—		—		—		—		(97,744)		(97,744)
Cash dividends declared on preferred stock(2)	—		—		—		—		—		(16,581)		(16,581)
Repurchases of common stock including costs to repurchase	—		—		—		(92,507)		—		—		(92,507)
Restricted share unit vesting and taxes paid related to net share settlement	—		306		(6,885)		—		—		—		(6,579)
Stock options exercised, net	—		669		14,210		—		—		—		14,879
Warrants exercised with net settlement and common stock reissued	—		—		(113)		116		—		(3)		—
Share-based compensation expense	—		—		14,529		—		—		—		14,529
Balance at June 30, 2021	$	537,145	$	169,108	$	3,872,949	$	(824,197)	$	45,726	$	1,436,983	$	5,237,714
Balance at December 31, 2019	$	537,145	$	166,801	$	3,819,336	$	(715,560)	$	65,641	$	1,068,327	$	4,941,690
Cumulative-effect of change in accounting principle for credit losses (ASU 2016-13), net of tax	—		—		—		—		—		(35,721)		(35,721)
Net income	—		—		—		—		—		131,712		131,712
Other comprehensive income, net of income taxes	—		—		—		—		137,329		—		137,329
Cash dividends declared on common stock - $0.66 per share	—		—		—		—		—		(97,210)		(97,210)
Cash dividends declared on preferred stock(2)	—		—		—		—		—		(16,581)		(16,581)
Repurchases of common stock including costs to repurchase	—		—		—		(16,246)		—		—		(16,246)
Restricted share unit vesting and taxes paid related to net share settlement	—		379		(7,783)		—		—		—		(7,404)
Stock options exercised, net	—		226		6,253		—		—		—		6,479
Share-based compensation expense	—		—		8,920		—		—		—		8,920
Balance at June 30, 2020	$	537,145	$	167,406	$	3,826,726	$	(731,806)	$	202,970	$	1,050,527	$	5,052,968

(1)    For the three months ended June 30, 2021 and 2020, dividends per share were $0.39 and $0.37 for Series D and Series E Preferred Stock, respectively.

(2)    For the six months ended June 30, 2021 and 2020, dividends per share were $0.78 and $0.74 for Series D and Series E Preferred Stock, respectively.

See accompanying notes to unaudited interim consolidated financial statements.

5

SYNOVUS FINANCIAL CORP.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

	Six Months Ended June 30,
(in thousands)	2021		2020
Operating Activities
Net income	$	373,292	$	131,712
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Reversal of) provision for credit losses	(43,173)		300,573
Depreciation, amortization, and accretion, net	84,091		49,921
Deferred income tax expense (benefit)	25,111		(54,741)
Originations of loans held for sale	(2,042,076)		(1,806,895)
Proceeds from sales and payments on loans held for sale	2,078,089		1,045,342
Gain on sales of loans held for sale, net	(27,502)		(25,785)
Increase in other assets	(24,873)		(1,631,678)
(Decrease) increase in other liabilities	(1,554)		1,175,881
Investment securities losses (gains), net	1,990		(78,144)
Share-based compensation expense	13,131		8,920
Other	—		1,904
Net cash provided by (used in) operating activities	436,526		(882,990)
Investing Activities
Proceeds from maturities and principal collections of investment securities available for sale	1,616,397		930,004
Proceeds from sales of investment securities available for sale	223,977		2,682,861
Purchases of investment securities available for sale	(3,476,929)		(3,890,074)
Proceeds from sales of loans	86,650		17,969
Purchases of loans	(1,041,602)		—
Net decrease (increase) in loans	928,084		(2,748,040)
Net (purchases) redemptions of Federal Home Loan Bank stock	(1,200)		71,272
Net purchases of Federal Reserve Bank stock	(954)		(454)
Net proceeds from settlement (purchases) of bank-owned life insurance policies	6,264		(249,273)
Net increase in premises, equipment and software	(12,419)		(20,186)
Other	4,141		33,514
Net cash used in investing activities	(1,667,591)		(3,172,407)
Financing Activities
Net increase in deposits	480,391		5,788,189
Net (decrease) increase in federal funds purchased and securities sold under repurchase agreements	(33,135)		59,886
Net decrease in other short-term borrowings	(7,717)		(1,453,560)
Repayments and redemption of long-term debt	—		(1,076,759)
Proceeds from issuance of long-term debt, net	—		1,248,441
Dividends paid to common shareholders	(97,927)		(92,741)
Dividends paid to preferred shareholders	(16,581)		(16,581)
Repurchases of common stock	(92,507)		(16,246)
Issuances, net of taxes paid, under equity compensation plans	8,300		(925)
Net cash provided by financing activities	240,824		4,439,704
(Decrease) increase in cash and cash equivalents including restricted cash	(990,241)		384,307
Cash, cash equivalents, and restricted cash, at beginning of period	4,252,917		1,186,918
Cash, cash equivalents, and restricted cash at end of period	$	3,262,676	$	1,571,225
Supplemental Disclosures:
Income taxes paid	$	115,282	$	257
Interest paid	78,772		194,687
Non-cash Activities
Premises and equipment transferred to other assets held for sale	3,864		5,837
Securities purchased during the period but settled after period-end	48,795		—
Loans foreclosed and transferred to other real estate	801		2,013
Loans transferred to other loans held for sale at fair value	—		933,353
Dividends declared on common stock during the period but paid after period-end	48,651		48,612
Dividends declared on preferred stock during the period but paid after period-end	5,141		5,141

See accompanying notes to unaudited interim consolidated financial statements.

6

Notes to Unaudited Interim Consolidated Financial Statements

Note 1 - Basis of Presentation and Accounting Policies

General

The accompanying unaudited interim consolidated financial statements of Synovus Financial Corp. include the accounts of the Parent Company and its consolidated subsidiaries. Synovus Financial Corp. is a financial services company based in Columbus, Georgia. Through its wholly-owned subsidiary, Synovus Bank, a Georgia state-chartered bank that is a member of the Federal Reserve System, the Company provides commercial and retail banking in addition to a full suite of specialized products and services including private banking, treasury management, wealth management, mortgage services, premium finance, asset-based lending, structured lending, and international banking. Synovus also provides financial planning, and investment advisory services through its wholly-owned subsidiaries, Synovus Trust and Synovus Securities, as well as its GLOBALT and Creative Financial Group divisions. Synovus Bank is positioned in markets in the Southeast, with 285 branches and 386 ATMs in Alabama, Florida, Georgia, South Carolina, and Tennessee.

The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the SEC Form 10-Q and Article 10 of Regulation S-X; therefore, they do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, comprehensive income, and cash flows in conformity with GAAP. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the periods covered by this Report have been included. The accompanying unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in Synovus' 2020 Form 10-K.

Reclassifications

Prior periods' consolidated financial statements are reclassified whenever necessary to conform to the current periods' presentation.

Use of Estimates in the Preparation of Financial Statements

In preparing the consolidated financial statements in accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the respective consolidated balance sheets and the reported amounts of revenues and expenses for the periods presented. Actual results could differ significantly from those estimates.

Material estimates that are particularly susceptible to change relate to the determination of the ACL; estimates of fair value; income taxes; and contingent liabilities.

Recently Adopted Accounting Standards

ASU 2020-08, Codification Improvements to Subtopic 310-20, Receivables – Nonrefundable Fees and Other Costs. The guidance in this ASU pertains to the shortened amortization period for certain purchased callable debt securities held at a premium, which premium is amortized to the earliest call date in accordance with ASC 310-20-25-33, and clarifies that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-25-33 for each reporting period. The amendments in this ASU are effective for fiscal years beginning after December 15, 2020. Synovus adopted ASU 2020-08 effective January 1, 2021 with no material impact to the unaudited consolidated financial statements.

ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. In December 2019, the FASB issued ASU 2019-12 to simplify and reduce complexities when accounting for income taxes by removing certain exceptions. Among the provisions of this guidance is the requirement that an entity reflect the effect of an enacted change in tax laws or rates in the annual effective tax rate computation in the interim period that includes the enactment date. ASU 2019-12 is effective for public entities for fiscal years beginning after December 15, 2020. Synovus adopted ASU 2019-12 effective January 1, 2021 with no material impact to the unaudited consolidated financial statements unless there are changes in tax law that require recognition as set forth in this guidance.

Recently Issued Accounting Standards Not Yet Adopted

ASU 2021-01, Reference Rate Reform (Topic 848). In January 2021, the FASB issued ASU 2021-01 which provides optional expedients and exceptions in Topic 848 for derivative instruments and hedge accounting modifications resulting from the discounting transition of reference rate reform. The expedients and exceptions provided by ASU 2021-01 will not be available after December 31, 2022, other than for existing hedging relationships entered into by December 31, 2022. The ASU may be applied as of the beginning of an interim period that includes or is subsequent to March 12, 2020, until the sunset date of December 31, 2022. Synovus adopted ASU 2020-04 Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting on October 1, 2020. While Synovus has not yet finalized the election of optional expedients for

7

ASU 2021-01, we do not currently expect there to be a material financial impact to the Company regardless of which optional expedients the Company selects to replace LIBOR.

Note 2 - Investment Securities Available for Sale

The amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities available for sale at June 30, 2021 and December 31, 2020 are summarized below.

	June 30, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	120,119	$	355	$	(2,243)	$	118,231
U.S. Government agency securities	54,161		1,954		—		56,115
Mortgage-backed securities issued by U.S. Government agencies	981,107		2,084		(7,077)		976,114
Mortgage-backed securities issued by U.S. Government sponsored enterprises	6,670,497		75,773		(37,855)		6,708,415
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	1,103,547		9,644		(9,145)		1,104,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	450,814		12,750		(3,022)		460,542
Corporate debt securities and other debt securities	18,260		447		—		18,707
Total investment securities available for sale	$	9,398,505	$	103,007	$	(59,342)	$	9,442,170
	December 31, 2020
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	20,257	$	—	$	—	$	20,257
U.S. Government agency securities	79,638		2,682		—		82,320
Mortgage-backed securities issued by U.S. Government agencies	1,216,012		7,930		(5,925)		1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises	4,865,858		134,188		—		5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	1,245,644		15,309		(10,576)		1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	354,244		16,677		—		370,921
Corporate debt securities and other debt securities	20,211		457		(168)		20,500
Total investment securities available for sale	$	7,801,864	$	177,243	$	(16,669)	$	7,962,438

At June 30, 2021 and December 31, 2020, investment securities with a carrying value of $3.73 billion and $3.84 billion, respectively, were pledged to secure certain deposits and other liabilities, as required by law or contractual agreements.            

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Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2021 and December 31, 2020 are presented below.

	June 30, 2021
	Less than 12 Months				12 Months or Longer				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
U.S. Treasury securities	$	47,586	$	(2,243)	$	—	$	—	$	47,586	$	(2,243)
Mortgage-backed securities issued by U.S. Government agencies	421,704		(5,251)		153,330		(1,826)		575,034		(7,077)
Mortgage-backed securities issued by U.S. Government sponsored enterprises	3,156,297		(37,855)		—		—		3,156,297		(37,855)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	524,044		(6,858)		140,934		(2,287)		664,978		(9,145)
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	166,011		(3,022)		—		—		166,011		(3,022)
Total	$	4,315,642	$	(55,229)	$	294,264	$	(4,113)	$	4,609,906	$	(59,342)
	December 31, 2020
	Less than 12 Months				12 Months or Longer				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Mortgage-backed securities issued by U.S. Government agencies	$	566,896	$	(5,925)	$	—	$	—	$	566,896	$	(5,925)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	803,429		(10,576)		—		—		803,429		(10,576)
Corporate debt securities and other debt securities	9,337		(168)		—		—		9,337		(168)
Total	$	1,379,662	$	(16,669)	$	—	$	—	$	1,379,662	$	(16,669)

As of June 30, 2021, Synovus had 91 investment securities in a loss position for less than twelve months and 8 investment securities in a loss position for twelve months or longer. Synovus does not intend to sell investment securities in an unrealized loss position prior to the recovery of the unrealized loss, which may not be until maturity, and has the ability and intent to hold those securities for that period of time. Additionally, Synovus is not currently aware of any circumstances which will require it to sell any of the securities that are in an unrealized loss position prior to the respective securities' recovery of all such unrealized losses. As such, no write-downs to the amortized cost basis of the portfolio were recorded at June 30, 2021.

At June 30, 2021, no ACL was established for investment securities. Substantially all of the unrealized losses on the securities portfolio were the result of changes in market interest rates compared to the date the securities were acquired rather than the credit quality of the issuers or underlying loans. U.S. Treasury and agency securities and agency mortgage-backed securities are issued, guaranteed or otherwise supported by the United States government, an agency of the United States government, or a government sponsored enterprise.

The amortized cost and fair value by contractual maturity of investment securities available for sale at June 30, 2021 are shown below. The expected life of MBSs or CMOs may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. For purposes of the maturity table, MBSs and CMOs, which are not due at a single maturity date, have been classified based on the final contractual maturity date.

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	Distribution of Maturities at June 30, 2021
(in thousands)	Within One  Year		1 to 5 Years		5 to 10  Years		More Than  10 Years		Total
Amortized Cost
U.S. Treasury securities	$	20,260	$	—	$	99,859	$	—	$	120,119
U.S. Government agency securities	430		1,595		52,136		—		54,161
Mortgage-backed securities issued by U.S. Government agencies	—		1,081		151		979,875		981,107
Mortgage-backed securities issued by U.S. Government sponsored enterprises	105		—		61,715		6,608,677		6,670,497
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		—		185		1,103,362		1,103,547
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		109,272		244,651		96,891		450,814
Corporate debt securities and other debt securities	—		9,504		8,756		—		18,260
Total amortized cost	$	20,795	$	121,452	$	467,453	$	8,788,805	$	9,398,505
Fair Value
U.S. Treasury securities	$	20,260	$	—	$	97,971	$	—	$	118,231
U.S. Government agency securities	432		1,609		54,074		—		56,115
Mortgage-backed securities issued by U.S. Government agencies	—		1,124		158		974,832		976,114
Mortgage-backed securities issued by U.S. Government sponsored enterprises	106		—		64,294		6,644,015		6,708,415
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		—		192		1,103,854		1,104,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		113,193		246,286		101,063		460,542
Corporate debt securities and other debt securities	—		9,872		8,835		—		18,707
Total fair value	$	20,798	$	125,798	$	471,810	$	8,823,764	$	9,442,170

Proceeds from sales, gross gains, and gross losses on sales of securities available for sale for the three and six months ended June 30, 2021 and 2020 are presented below. The specific identification method is used to reclassify gains and losses out of other comprehensive income at the time of sale.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Proceeds from sales of investment securities available for sale	$	—	$	2,269,682	$	223,977	$	2,682,861
Gross realized gains on sales	—		75,105		—		83,839
Gross realized losses on sales	—		(5,696)		(1,990)		(5,695)
Investment securities gains (losses), net	$	—	$	69,409	$	(1,990)	$	78,144

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Note 3 - Loans and Allowance for Loan Losses

Aging and Non-Accrual Analysis

The following tables provide a summary of current, accruing past due, and non-accrual loans by portfolio class as of June 30, 2021 and December 31, 2020.

	June 30, 2021
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual with an ALL		Non-accrual without an ALL		Total
Commercial, financial and agricultural	$	12,002,589	$	11,161	$	841	$	12,002	$	49,197	$	21,746	$	12,085,534
Owner-occupied	7,048,621		1,987		836		2,823		13,155		—		7,064,599
Total commercial and industrial	19,051,210		13,148		1,677		14,825		62,352		21,746		19,150,133
Investment properties	9,205,776		7,461		2		7,463		2,367		2,407		9,218,013
1-4 family properties	632,412		1,076		381		1,457		1,982		493		636,344
Land and development	504,270		263		121		384		2,040		—		506,694
Total commercial real estate	10,342,458		8,800		504		9,304		6,389		2,900		10,361,051
Consumer mortgages	5,144,394		4,992		—		4,992		51,376		—		5,200,762
Home equity lines	1,346,562		2,711		—		2,711		8,938		—		1,358,211
Credit cards	282,361		1,524		1,623		3,147		—		—		285,508
Other consumer loans	1,858,684		13,731		611		14,342		7,327		—		1,880,353
Total consumer	8,632,001		22,958		2,234		25,192		67,641		—		8,724,834
Loans, net of deferred fees and costs	$	38,025,669	$	44,906	$	4,415	$	49,321	$	136,382	$	24,646	$	38,236,018

	December 31, 2020
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual with an ALL		Non-accrual without an ALL		Total
Commercial, financial and agricultural	$	12,321,514	$	10,256	$	996	$	11,252	$	55,527	$	21,859	$	12,410,152
Owner-occupied	7,087,992		1,913		92		2,005		20,019		—		7,110,016
Total commercial and industrial	19,409,506		12,169		1,088		13,257		75,546		21,859		19,520,168
Investment properties	9,075,843		2,751		154		2,905		24,631		—		9,103,379
1-4 family properties	621,492		3,548		36		3,584		2,383		1,236		628,695
Land and development	591,048		422		—		422		1,899		264		593,633
Total commercial real estate	10,288,383		6,721		190		6,911		28,913		1,500		10,325,707
Consumer mortgages	5,495,415		8,851		485		9,336		8,740		—		5,513,491
Home equity lines	1,521,575		4,006		—		4,006		12,145		—		1,537,726
Credit cards	276,778		2,363		1,877		4,240		—		—		281,018
Other consumer loans	1,062,899		9,122		477		9,599		2,376		—		1,074,874
Total consumer	8,356,667		24,342		2,839		27,181		23,261		—		8,407,109
Loans, net of deferred fees and costs	$	38,054,556	$	43,232	$	4,117	$	47,349	$	127,720	$	23,359	$	38,252,984

Interest income on non-accrual loans outstanding that would have been recorded if the loans had been current and performing in accordance with their original terms was $2.6 million and $2.8 million for the three months ended June 30, 2021 and 2020, respectively, and $6.0 million and $4.9 million for the six months ended June 30, 2021 and 2020, respectively. Of the interest income recognized during the three months ended June 30, 2021 and 2020, cash-basis interest income was $538 thousand and $484 thousand, respectively. Cash-basis interest income was $1.2 million and $1.4 million for the six months ended June 30, 2021 and 2020, respectively.

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Pledged Loans

Loans with carrying values of $14.29 billion and $15.05 billion, respectively, were pledged as collateral for borrowings and capacity at June 30, 2021 and December 31, 2020, respectively, to the FHLB and Federal Reserve Bank.

Portfolio Segment Risk Factors

The risk characteristics and collateral information of each portfolio segment are as follows:

Commercial and Industrial Loans - The C&I loan portfolio is comprised of general middle market and commercial banking clients across a diverse set of industries. In accordance with Synovus' lending policy, each loan undergoes a detailed underwriting process which incorporates uniform underwriting standards and oversight in proportion to the size and complexity of the lending relationship. These loans are secured by collateral such as business equipment, inventory, and real estate. Whether for real estate or non-real estate purpose, credit decisions on loans in the C&I portfolio are based on cash flow from the operations of the business as the primary source of repayment of the debt, with underlying real estate or other collateral being the secondary source of repayment. PPP loans, which are categorized as C&I loans, were $1.60 billion at June 30, 2021 and are guaranteed by the SBA.

Commercial Real Estate Loans - CRE loans primarily consist of income-producing investment properties loans. Additionally, CRE loans include 1-4 family properties loans as well as land and development loans. Investment properties loans consist of construction and mortgage loans for income-producing properties and are primarily made to finance multi-family properties, hotels, office buildings, shopping centers, warehouses and other commercial development properties. 1-4 family properties loans include construction loans to homebuilders and commercial mortgage loans related to 1-4 family rental properties and are almost always secured by the underlying property being financed by such loans. These properties are primarily located in the markets served by Synovus. Land and development loans include commercial and residential development as well as land acquisition loans and are secured by land held for future development, typically in excess of one year. Properties securing these loans are substantially within markets served by Synovus, and loan terms generally include personal guarantees from the principals. Loans in this portfolio are underwritten based on the LTV of the collateral and the capacity of the guarantor(s).

Consumer Loans - The consumer loan portfolio consists of a wide variety of loan products offered through Synovus' banking network including first and second residential mortgages, HELOCs, and credit card loans, as well as home improvement loans, student, personal, and auto loans from third-party lending. The majority of Synovus' consumer loans are consumer mortgages and HELOCs secured by first and second liens on residential real estate primarily located in the markets served by Synovus. The primary source of repayment for all consumer loans is generally the personal income of the borrower(s).

Credit Quality Indicators

The credit quality of the loan portfolio is reviewed and updated no less frequently than annually using the standard asset classification system utilized by the federal banking agencies. These classifications are divided into three groups: Not Criticized (Pass), Special Mention, and Classified or Adverse rating (Substandard, Doubtful, and Loss) and are defined as follows:

Pass - loans which are well protected by the current net worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less cost to acquire and sell in a timely manner, of any underlying collateral.

Special Mention - loans which have potential weaknesses that deserve management's close attention. These loans are not adversely classified and do not expose an institution to sufficient risk to warrant an adverse classification.

Substandard - loans which are inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged, if any. Loans with this classification are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.

Doubtful - loans which have all the weaknesses inherent in loans categorized as Substandard with the added characteristic that the weaknesses make collection or liquidation in full highly questionable and improbable on the basis of currently known facts, conditions, and values.

Loss - loans which are considered by management to be uncollectible and of such little value that their continuance on the institution's books as an asset, without establishment of a specific valuation allowance or charge-off, is not warranted. Synovus fully reserves for any loans rated as Loss.

In the following tables, consumer loans are generally assigned a risk grade similar to the classifications described above; however, upon reaching 90 days and 120 days past due, they are generally downgraded to Substandard and Loss, respectively, in accordance with the FFIEC Retail Credit Classification Policy. Additionally, in accordance with Interagency Supervisory Guidance, the risk grade classifications of consumer loans (consumer mortgages and HELOCs) secured by junior liens on 1-4 family residential properties also consider available information on the payment status of any associated senior liens with other financial institutions.

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The following tables summarize each loan portfolio class by risk grade and origination year as of June 30, 2021 and December 31, 2020 as required under CECL.

	June 30, 2021
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2021		2020		2019		2018		2017		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Commercial, financial and agricultural
Pass	$	1,515,420	$	2,149,994	$	1,144,130	$	755,925	$	519,704	$	1,118,928	$	4,332,632	$	44,177	$	11,580,910
Special Mention	1,482		67,377		46,077		11,516		17,074		3,424		78,717		440		226,107
Substandard(1)	7,706		58,956		37,439		12,201		20,766		39,323		82,883		2,085		261,359
Doubtful(2)	449		512		2,776		13,132		—		—		289		—		17,158
Total commercial, financial and agricultural	1,525,057		2,276,839		1,230,422		792,774		557,544		1,161,675		4,494,521		46,702		12,085,534
Owner-occupied
Pass	667,812		1,293,871		1,226,446		1,041,975		829,705		1,403,658		387,603		—		6,851,070
Special Mention	680		4,294		11,397		16,291		3,326		22,395		8,180		—		66,563
Substandard(1)	721		3,546		26,400		51,240		28,277		30,440		—		—		140,624
Doubtful(2)	—		—		—		6,342		—		—		—		—		6,342
Total owner-occupied	669,213		1,301,711		1,264,243		1,115,848		861,308		1,456,493		395,783		—		7,064,599
Total commercial and industrial	2,194,270		3,578,550		2,494,665		1,908,622		1,418,852		2,618,168		4,890,304		46,702		19,150,133
Investment properties
Pass	637,057		1,342,718		2,226,278		1,507,075		872,163		1,606,709		289,261		—		8,481,261
Special Mention	—		1,032		80,673		152,823		107,557		207,195		57,204		—		606,484
Substandard(1)	7,435		334		9,843		56,177		18,136		38,203		140		—		130,268
Total investment properties	644,492		1,344,084		2,316,794		1,716,075		997,856		1,852,107		346,605		—		9,218,013
1-4 family properties
Pass	157,416		136,528		66,762		55,745		70,774		88,755		48,205		—		624,185
Special Mention	491		158		—		365		—		248		—		—		1,262
Substandard(1)	1,745		108		437		4,723		926		2,360		598		—		10,897
Total 1-4 family properties	159,652		136,794		67,199		60,833		71,700		91,363		48,803		—		636,344

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	June 30, 2021
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2021		2020		2019		2018		2017		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Land and development
Pass	57,117		67,046		120,637		74,328		64,803		72,639		35,548		—		492,118
Special Mention	—		834		1,948		2,369		24		997		—		—		6,172
Substandard(1)	—		1,233		48		3,231		881		3,011		—		—		8,404
Total land and development	57,117		69,113		122,633		79,928		65,708		76,647		35,548		—		506,694
Total commercial real estate	861,261		1,549,991		2,506,626		1,856,836		1,135,264		2,020,117		430,956		—		10,361,051
Consumer mortgages
Pass	624,582		1,735,940		730,083		303,577		517,050		1,227,662		965		—		5,139,859
Substandard(1)	203		148		2,114		14,037		5,757		38,421		—		—		60,680
Loss(3)	—		—		—		—		—		223		—		—		223
Total consumer mortgages	624,785		1,736,088		732,197		317,614		522,807		1,266,306		965		—		5,200,762
Home equity lines
Pass	—		—		—		—		—		—		1,264,828		77,373		1,342,201
Substandard(1)	—		—		—		—		—		—		9,708		5,376		15,084
Doubtful(2)	—		—		—		—		—		—		—		18		18
Loss(3)	—		—		—		—		—		—		766		142		908
Total home equity lines	—		—		—		—		—		—		1,275,302		82,909		1,358,211
Credit cards
Pass	—		—		—		—		—		—		283,887		—		283,887
Substandard(1)	—		—		—		—		—		—		409		—		409
Loss(4)	—		—		—		—		—		—		1,212		—		1,212
Total credit cards	—		—		—		—		—		—		285,508		—		285,508
Other consumer loans
Pass	220,495		873,734		182,445		68,046		80,624		118,009		328,734		—		1,872,087
Substandard(1)	213		552		2,232		1,483		2,774		766		234		—		8,254
Loss(4)	—		—		—		—		—		12		—		—		12
Total other consumer loans	220,708		874,286		184,677		69,529		83,398		118,787		328,968		—		1,880,353
Total consumer	845,493		2,610,374		916,874		387,143		606,205		1,385,093		1,890,743		82,909		8,724,834
Loans, net of deferred fees and costs	$	3,901,024	$	7,738,915	$	5,918,165	$	4,152,601	$	3,160,321	$	6,023,378	$	7,212,003	$	129,611	$	38,236,018

(1)    The majority of loans within Substandard risk grade are accruing loans at June 30, 2021.

(2)    Loans within Doubtful risk grade are on non-accrual status and generally have an ALL equal to 50% of the loan amount.

(3)    Loans within Loss risk grade are on non-accrual status and have an ALL equal to the full loan amount.

(4)    Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an ALL equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Retail Credit Classification Policy.

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	December 31, 2020
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2020		2019		2018		2017		2016		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Commercial, financial and agricultural
Pass	$	3,819,048	$	1,333,460	$	847,283	$	582,612	$	551,413	$	633,871	$	4,102,751	$	49,762	$	11,920,200
Special Mention	63,307		40,618		12,723		22,070		1,665		5,545		60,741		489		207,158
Substandard(1)	28,698		36,618		24,867		36,072		12,808		35,172		84,498		514		259,247
Doubtful(2)	—		3,721		19,778		—		—		—		48		—		23,547
Total commercial, financial and agricultural	3,911,053		1,414,417		904,651		640,754		565,886		674,588		4,248,038		50,765		12,410,152
Owner-occupied
Pass	1,321,680		1,275,435		1,131,183		982,056		555,932		1,297,070		349,566		—		6,912,922
Special Mention	6,170		9,995		10,682		14,138		1,582		13,768		—		—		56,335
Substandard(1)	2,570		22,793		42,615		26,033		7,316		29,794		—		—		131,121
Doubtful(2)	—		—		9,638		—		—		—		—		—		9,638
Total owner-occupied	1,330,420		1,308,223		1,194,118		1,022,227		564,830		1,340,632		349,566		—		7,110,016
Total commercial and industrial	5,241,473		2,722,640		2,098,769		1,662,981		1,130,716		2,015,220		4,597,604		50,765		19,520,168
Investment properties
Pass	1,055,440		2,126,667		1,999,345		1,091,880		483,780		1,301,088		229,044		—		8,287,244
Special Mention	1,482		66,160		176,794		136,004		138,362		129,401		55,440		—		703,643
Substandard(1)	1,007		4,770		24,476		19,820		21,875		40,509		35		—		112,492
Total investment properties	1,057,929		2,197,597		2,200,615		1,247,704		644,017		1,470,998		284,519		—		9,103,379
1-4 family properties
Pass	197,320		95,145		70,267		88,454		38,729		97,374		27,657		—		614,946
Special Mention	402		—		508		109		786		118		—		—		1,923
Substandard(1)	1,527		653		4,312		1,141		554		2,299		1,340		—		11,826
Total 1-4 family properties	199,249		95,798		75,087		89,704		40,069		99,791		28,997		—		628,695
Land and development
Pass	84,985		173,302		83,734		92,911		12,249		76,380		53,250		—		576,811
Special Mention	857		1,995		2,866		282		—		1,332		636		—		7,968
Substandard(1)	1,229		425		4,664		915		136		1,485		—		—		8,854
Total land and development	87,071		175,722		91,264		94,108		12,385		79,197		53,886		—		593,633
Total commercial real estate	1,344,249		2,469,117		2,366,966		1,431,516		696,471		1,649,986		367,402		—		10,325,707

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	December 31, 2020
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2020		2019		2018		2017		2016		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Consumer mortgages
Pass	1,871,512		874,769		425,711		678,255		685,810		965,382		1,040		—		5,502,479
Substandard(1)	33		961		748		889		866		7,224		—		—		10,721
Loss(3)	—		—		—		—		—		291		—		—		291
Total consumer mortgages	1,871,545		875,730		426,459		679,144		686,676		972,897		1,040		—		5,513,491
Home equity lines
Pass	—		—		—		—		—		—		1,429,755		90,832		1,520,587
Substandard(1)	—		—		—		—		—		—		9,698		5,996		15,694
Doubtful(2)	—		—		—		—		—		—		—		19		19
Loss(3)	—		—		—		—		—		—		1,283		143		1,426
Total home equity lines	—		—		—		—		—		—		1,440,736		96,990		1,537,726
Credit cards
Pass	—		—		—		—		—		—		279,142		—		279,142
Substandard(1)	—		—		—		—		—		—		595		—		595
Loss(4)	—		—		—		—		—		—		1,281		—		1,281
Total credit cards	—		—		—		—		—		—		281,018		—		281,018
Other consumer loans
Pass	252,160		190,820		89,187		100,459		80,365		61,040		297,637		—		1,071,668
Substandard(1)	19		762		262		1,195		121		585		227		—		3,171
Loss(4)	—		—		—		—		—		35		—		—		35
Total other consumer loans	252,179		191,582		89,449		101,654		80,486		61,660		297,864		—		1,074,874
Total consumer	2,123,724		1,067,312		515,908		780,798		767,162		1,034,557		2,020,658		96,990		8,407,109
Loans, net of deferred fees and costs	$	8,709,446	$	6,259,069	$	4,981,643	$	3,875,295	$	2,594,349	$	4,699,763	$	6,985,664	$	147,755	$	38,252,984

(1)    The majority of loans within Substandard risk grade are accruing loans at December 31, 2020.

(2)    Loans within Doubtful risk grade are on non-accrual status and generally have an ALL equal to 50% of the loan amount.

(3)    Loans within Loss risk grade are on non-accrual status and have an ALL equal to the full loan amount.

(4)    Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an ALL equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Retail Credit Classification Policy.

Collateral-Dependent Loans

We classify a loan as collateral-dependent when our borrower is experiencing financial difficulty, and we expect repayment to be provided substantially through the operation or sale of collateral. Our commercial loans have collateral that is comprised of real estate and business assets. Our consumer loans have collateral that is substantially comprised of residential real estate.

There were no significant changes in the extent to which collateral secures our collateral-dependent loans during the three and six months ended June 30, 2021.

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Rollforward of Allowance for Loan Losses

The following tables detail the changes in the ALL by loan segment for the three and six months ended June 30, 2021 and 2020.

	As Of and For the Three Months Ended June 30, 2021
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at March 31, 2021	$	254,777	$	113,812	$	194,625	$	563,214
Charge-offs	(18,729)		(3,839)		(8,285)		(30,853)
Recoveries	1,495		377		2,435		4,307
(Reversal of) provision for loan losses	17,395		(18,237)		(19,118)		(19,960)
Ending balance at June 30, 2021	$	254,938	$	92,113	$	169,657	$	516,708
	As Of and For the Three Months Ended June 30, 2020
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at March 31, 2020	$	216,950	$	107,117	$	169,385	$	493,452
Charge-offs	(23,245)		(689)		(6,844)		(30,778)
Recoveries	3,261		536		2,935		6,732
Provision for loan losses	32,949		64,562		21,731		119,242
Ending balance at June 30, 2020	$	229,915	$	171,526	$	187,207	$	588,648
	As Of and For the Six Months Ended June 30, 2021
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at December 31, 2020	$	229,555	$	130,742	$	245,439	$	605,736
Charge-offs	(28,146)		(14,158)		(13,874)		(56,178)
Recoveries	4,267		1,403		3,758		9,428
(Reversal of) provision for loan losses	49,262		(25,874)		(65,666)		(42,278)
Ending balance at June 30, 2021	$	254,938	$	92,113	$	169,657	$	516,708
	As Of and For the Six Months Ended June 30, 2020
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at December 31, 2019	$	145,782	$	67,430	$	68,190	$	281,402
Impact from adoption of ASC 326	(2,310)		(651)		85,955		82,994
Beginning balance, after adoption of ASC 326, at January 1, 2020	$	143,472	$	66,779	$	154,145	$	364,396
Charge-offs	(38,130)		(1,706)		(14,816)		(54,652)
Recoveries	5,002		935		4,608		10,545
Provision for loan losses	119,571		105,518		43,270		268,359
Ending balance at June 30, 2020	$	229,915	$	171,526	$	187,207	$	588,648

The ALL of $516.7 million and the reserve for unfunded commitments of $46.9 million, which is recorded in other liabilities, comprise the total ACL of $563.6 million at June 30, 2021. The ACL decreased $89.9 million from December 31, 2020, resulting in an ACL to loans coverage ratio of 1.47% at June 30, 2021.

The ACL is estimated using a two-year reasonable and supportable forecast period. To the extent the lives of the loans in the portfolio extend beyond the period for which a reasonable and supportable forecast can be made, the Company reverts on a straight-line basis back to the historical rates over a one-year period. Synovus utilizes multiple economic forecast scenarios sourced from a reputable third-party provider and probability-weighted internally. The scenarios include a baseline forecast

17

representing management's view, an upside scenario reflecting an accelerated economic recovery, and two downside scenarios with increasingly adverse economic outcomes. At June 30, 2021, economic scenario weights incorporated a 40% downside bias, consistent with March 31, 2021. The baseline outlook used in the June 30, 2021 estimate showed improving economic conditions with the unemployment rate declining to 4.5% by the end of 2021, compared to the first quarter of 2021’s ACL estimate which had the unemployment rate at 5.7% by the end of 2021.

Reversal of provision for credit losses includes the reversals of provisions for loan losses and unfunded commitments. The reversal of provision for credit losses of $24.6 million and $43.2 million for the three and six months ended June 30, 2021, respectively, included net charge-offs of $26.5 million and $46.8 million, respectively. The reversal of provision for credit losses and related reduction in the ACL primarily resulted from the continued improvement in the economic forecast for pooled loans and the reduction in the individually analyzed reserve as a result of charge-offs of pre-existing reserves that were not replaced. This was partially offset by $10.6 million and $25.8 million in reserves added as a result of purchases of $434.6 million and $1.04 billion of third-party lending loans for the three and six months ended June 30, 2021, respectively.

18

TDRs

Information about Synovus' TDRs is presented in the following tables. Synovus began entering into loan modifications with borrowers in response to the COVID-19 pandemic, some of which have not been classified as TDRs, and therefore are not included in the discussion below. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" in Synovus' 2020 Form 10-K for information on Synovus' loan modifications due to COVID-19. The following tables represent, by concession type, the post-modification balance for loans modified or renewed during the three and six months ended June 30, 2021 and 2020 that were reported as accruing or non-accruing TDRs.

TDRs by Concession Type
	Three Months Ended June 30, 2021
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	18	$	1,770	$	1,174	$	2,944
Owner-occupied	5	1,155		—		1,155
Total commercial and industrial	23	2,925		1,174		4,099
Investment properties	1	419		—		419
1-4 family properties	2	158		—		158
Land and development	1	366		—		366
Total commercial real estate	4	943		—		943
Consumer mortgages	2	331		—		331
Home equity lines	14	900		96		996
Other consumer loans	13	187		245		432
Total consumer	29	1,418		341		1,759
Total TDRs	56	$	5,286	$	1,515	$	6,801	(2)
	Three Months Ended June 30, 2020
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	40	$	1,503	$	2,000	$	3,503
Owner-occupied	7	453		1,434		1,887
Total commercial and industrial	47	1,956		3,434		5,390
Investment properties	2	5,599		—		5,599
1-4 family properties	4	69		549		618
Land and development	1	91		—		91
Total commercial real estate	7	5,759		549		6,308
Consumer mortgages	10	556		1,482		2,038
Home equity lines	14	181		918		1,099
Other consumer loans	18	19		798		817
Total consumer	42	756		3,198		3,954
Total TDRs	96	$	8,471	$	7,181	$	15,652	(3)

(1)    Other concessions generally include term extensions, interest only payments for a period of time, or principal forgiveness, but there was no principal forgiveness for the three months ending June 30, 2021 and 2020.

(2)    No net charge-offs were recorded during the three months ended June 30, 2021.

(3)    No net charge-offs were recorded during the three months ended June 30, 2020.

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	Six Months Ended June 30, 2021
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	58	$	5,002	$	3,737	$	8,739
Owner-occupied	10	2,409		399		2,808
Total commercial and industrial	68	7,411		4,136		11,547
Investment properties	6	2,402		—		2,402
1-4 family properties	7	621		39		660
Land and development	2	366		43		409
Total commercial real estate	15	3,389		82		3,471
Consumer mortgages	2	331		—		331
Home equity lines	27	1,487		258		1,745
Other consumer loans	86	316		4,864		5,180
Total consumer	115	2,134		5,122		7,256
Total TDRs	198	$	12,934	$	9,340	$	22,274	(2)
	Six Months Ended June 30, 2020
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	76	$	5,226	$	4,011	$	9,237
Owner-occupied	12	1,821		1,530		3,351
Total commercial and industrial	88	7,047		5,541		12,588
Investment properties	4	28,669		—		28,669
1-4 family properties	10	793		991		1,784
Land and development	2	541		—		541
Total commercial real estate	16	30,003		991		30,994
Consumer mortgages	16	1,072		2,566		3,638
Home equity lines	33	455		1,882		2,337
Other consumer loans	47	97		2,694		2,791
Total consumer	96	1,624		7,142		8,766
Total TDRs	200	$	38,674	$	13,674	$	52,348	(3)

(1)    Other concessions generally include term extensions, interest only payments for a period of time, or principal forgiveness, but there was no principal forgiveness for the six months ending June 30, 2021 and 2020.

(2)    No net charge-offs were recorded during the six months ended June 30, 2021.

(3)    No net charge-offs were recorded during the six months ended June 30, 2020.

For both the three and six months ended June 30, 2021 there were five defaults with a recorded investment of $172 thousand on accruing TDRs restructured during the previous twelve months (defaults are defined as the earlier of the TDR being placed on non-accrual status or reaching 90 days past due with respect to principal and/or interest payments) compared to one default with a recorded investment of $27 thousand and four defaults with a recorded investment of $645 thousand, respectively, for the three and six months ended June 30, 2020. As of June 30, 2021 and December 31, 2020, there were no commitments to lend a material amount of additional funds to any customer whose loan was classified as a TDR.

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Note 4 - Goodwill and Other Intangible Assets

Goodwill allocated to each reporting unit at June 30, 2021 and December 31, 2020 is presented as follows:

(in thousands)	June 30, 2021		December 31, 2020
Community Banking Reporting Unit	$	256,323	$	256,323
Wholesale Banking Reporting Unit	171,636		171,636
Consumer Mortgage Reporting Unit	—		—
Wealth Management Reporting Unit	24,431		24,431
Total Goodwill	$	452,390	$	452,390

The following table presents changes in the carrying amount of goodwill for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Balance at beginning of period	$	452,390	$	497,267	$	452,390	$	497,267
Changes during the period from:
Other	—		—		—		—
Balance at end of period	$	452,390	$	497,267	$	452,390	$	497,267

Goodwill is not amortized but is evaluated for impairment on an annual basis or whenever an event occurs or circumstances change to indicate that it is more likely than not that an impairment loss has been incurred (i.e., a triggering event). Synovus performs its annual evaluation of goodwill impairment during the fourth quarter of each year. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 7 - Goodwill and Other Intangible Assets" to the consolidated financial statements of Synovus' 2020 Form 10-K for information on Synovus' quantitative assessments of goodwill impairment during 2020.

The following table shows the gross carrying amount and accumulated amortization of other intangible assets as of June 30, 2021 and December 31, 2020, which primarily consist of core deposit intangible assets. The CDI is being amortized over its estimated useful life of approximately ten years utilizing an accelerated method. Aggregate other intangible assets amortization expense for the three and six months ended June 30, 2021 was $2.4 million and $4.8 million, respectively. Aggregate other intangible assets amortization expense for the three and six months ended June 30, 2020 was $2.6 million and $5.3 million, respectively.

(in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
June 30, 2021
CDI	$	57,400	$	(24,003)	$	33,397
Other	12,500		(5,543)		6,957
Total other intangible assets	$	69,900	$	(29,546)	$	40,354
December 31, 2020
CDI	$	57,400	$	(19,829)	$	37,571
Other	12,500		(4,959)		7,541
Total other intangible assets	$	69,900	$	(24,788)	$	45,112

Note 5 - Shareholders' Equity and Other Comprehensive Income (Loss)

Repurchases of Common Stock

Synovus announced on January 26, 2021 that its Board of Directors authorized share repurchases of up to $200 million in 2021. During the three months ended June 30, 2021, Synovus repurchased under this program a total of $92.5 million, or 1.9 million shares of its common stock, at an average price of $47.51 per share. Synovus made no share repurchases during the three months ended March 31, 2021.

21

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)

The following tables illustrate activity within the balances in accumulated other comprehensive income (loss) by component for the three and six months ended June 30, 2021 and 2020.

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)
(in thousands)	Net unrealized gains (losses) on investment securities available for sale(1)		Net unrealized gains (losses) on cash flow hedges(1)		Post-retirement unfunded health benefit		Total
Balance at March 31, 2021	$	(15,316)	$	30,594	$	—	$	15,278
Other comprehensive income (loss) before reclassifications	34,617		(1,437)		—		33,180
Amounts reclassified from AOCI	—		(2,732)		—		(2,732)
Net current period other comprehensive income (loss)	34,617		(4,169)		—		30,448
Balance at June 30, 2021	$	19,301	$	26,425	$	—	$	45,726
Balance at March, 31, 2020	$	194,524	$	61,925	$	462	$	256,911
Other comprehensive income (loss) before reclassifications	(8,847)		6,538		—		(2,309)
Amounts reclassified from AOCI	(51,432)		(200)		—		(51,632)
Net current period other comprehensive income (loss)	(60,279)		6,338		—		(53,941)
Balance at June 30, 2020	$	134,245	$	68,263	$	462	$	202,970
Balance, December 31, 2020	$	105,669	$	52,966	$	—	$	158,635
Other comprehensive income (loss) before reclassifications	(87,843)		(22,620)		—		(110,463)
Amounts reclassified from AOCI	1,475		(3,921)		—		(2,446)
Net current period other comprehensive income (loss)	(86,368)		(26,541)		—		(112,909)
Balance at June 30, 2021	$	19,301	$	26,425	$	—	$	45,726
Balance, December 31, 2019	$	83,666	$	(18,487)	$	462	$	65,641
Other comprehensive income (loss) before reclassifications	108,484		87,039		—		195,523
Amounts reclassified from AOCI	(57,905)		(289)		—		(58,194)
Net current period other comprehensive income (loss)	50,579		86,750		—		137,329
Balance at June 30, 2020	$	134,245	$	68,263	$	462	$	202,970

(1)    For all periods presented, the ending balance in net unrealized gains (losses) on investment securities available for sale and cash flow hedges includes unrealized losses of $13.3 million and $12.1 million, respectively, related to residual tax effects remaining in OCI due to previously established deferred tax asset valuation allowances in 2010 and 2011. In accordance with ASC 740-20-45-11(b), under the portfolio approach, these unrealized losses are realized at the time the entire portfolio is sold or disposed.

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Note 6 - Fair Value Accounting

See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" of Synovus' 2020 Form 10-K for a description of valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis.

The following table presents assets and liabilities measured at estimated fair value on a recurring basis.

	June 30, 2021								December 31, 2020
(in thousands)	Level 1		Level 2		Level 3		Total Estimated Fair Value		Level 1		Level 2		Level 3		Total Estimated Fair Value
Assets
Trading securities:
Mortgage-backed securities issued by U.S. Government agencies	$	—	$	—	$	—	$	—	$	—	$	10,185	$	—	$	10,185
Collateralized mortgage obligations issued by U.S. Government sponsored enterprises	—		265		—		265		—		158		—		158
Other mortgage-backed securities	—		282		—		282		—		178		—		178
State and municipal securities	—		1,495		—		1,495		—		176		—		176
Asset-backed securities	—		2,145		—		2,145		—		183		—		183
Total trading securities	$	—	$	4,187	$	—	$	4,187	$	—	$	10,880	$	—	$	10,880
Investment securities available for sale:
U.S. Treasury securities	$	118,231	$	—	$	—	$	118,231	$	20,257	$	—	$	—	$	20,257
U.S. Government agency securities	—		56,115		—		56,115		—		82,320		—		82,320
Mortgage-backed securities issued by U.S. Government agencies	—		976,114		—		976,114		—		1,218,017		—		1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises	—		6,708,415		—		6,708,415		—		5,000,046		—		5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		1,104,046		—		1,104,046		—		1,250,377		—		1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		460,542		—		460,542		—		370,921		—		370,921
Corporate debt securities and other debt securities	—		18,707		—		18,707		—		18,479		2,021		20,500
Total investment securities available for sale	$	118,231	$	9,323,939	$	—	$	9,442,170	$	20,257	$	7,940,160	$	2,021	$	7,962,438
Mortgage loans held for sale	$	—	$	202,216	$	—	$	202,216	$	—	$	216,647	$	—	$	216,647
Private equity investments	—		—		1,026		1,026		—		—		1,021		1,021
Mutual funds and mutual funds held in rabbi trusts	41,710		—		—		41,710		37,650		—		—		37,650
GGL/SBA loans servicing asset	—		—		3,321		3,321		—		—		3,258		3,258
Derivative assets	—		279,454		—		279,454		—		401,295		—		401,295
Liabilities
Trading liability for short positions	—		—		—		—		—		7,717		—		7,717
Earnout liability	—		—		6,427		6,427		—		—		5,677		5,677
Derivative liabilities	—		113,708		1,473		115,181		—		155,119		2,048		157,167

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Fair Value Option

Synovus has elected the fair value option for mortgage loans held for sale primarily to ease the operational burden required to maintain hedge accounting for these loans. Synovus is still able to achieve effective economic hedges on mortgage loans held for sale without the time and expense needed to manage a hedge accounting program.

The following table summarizes the difference between the fair value and the UPB of mortgage loans held for sale and the changes in fair value of these loans. An immaterial portion of these changes in fair value was attributable to changes in instrument-specific credit risk.

Mortgage Loans Held for Sale
(in thousands)	As of June 30, 2021		As of December 31, 2020
Fair value	$	202,216	$	216,647
Unpaid principal balance	196,399		210,292
Fair value less aggregate unpaid principal balance	$	5,817	$	6,355

Changes in Fair Value Included in Net Income	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Mortgage loans held for sale	$	4,094	$	5,365	$	(538)	$	5,984

Activity for Level 3 Assets and Liabilities

See "Part II - Item 8. Financial Statements and Supplementary Data - Note 14 - Fair Value Accounting" of Synovus' 2020 Form 10-K for a description of the valuation techniques and significant inputs for Level 3 assets and liabilities that are measured at fair value on a recurring and non-recurring basis. During the three and six months ended June 30, 2021 and 2020, Synovus did not have any transfers in or out of Level 3 in the fair value hierarchy. The following tables provide rollforwards of Level 3 assets and liabilities measured at fair value on a recurring basis.

	Three Months Ended June 30, 2021
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	—	$	1,053	$	3,305	$	(5,677)	$	(1,768)
Total gains (losses) realized/unrealized:
Included in earnings	—		(27)		(252)		(750)		—
Additions	—		—		268		—		—
Settlements	—		—		—		—		295
Ending balance	$	—	$	1,026	$	3,321	$	(6,427)	$	(1,473)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2021	$	—	$	(27)	$	—	$	(750)	$	—
	Three Months Ended June 30, 2020
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	1,562	$	3,255	$	3,149	$	(11,016)	$	(2,050)
Total gains (losses) realized/unrealized:
Included in earnings	—		(2,557)		(291)		(4,908)		—
Unrealized gains (losses) included in OCI	100		—		—		—		—
Additions	—		—		161		—		—
Settlements	—		—		—		—		295
Ending balance	$	1,662	$	698	$	3,019	$	(15,924)	$	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2020	$	—	$	(2,557)	$	—	$	(4,908)	$	—

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	Six Months Ended June 30, 2021
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	2,021	$	1,021	$	3,258	$	(5,677)	$	(2,048)
Total gains (losses) realized/unrealized:
Included in earnings			5		(430)		(750)		—
Sales	(2,021)		—		—		—		—
Additions	—		—		493		—		—
Settlements	—		—		—		—		575
Ending balance	$	—	$	1,026	$	3,321	$	(6,427)	$	(1,473)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2021	$	—	$	5	$	—	$	(750)	$	—
	Six Months Ended June 30, 2020
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	2,105	$	3,887	$	3,040	$	(11,016)	$	(2,339)
Total (losses) gains realized/unrealized:
Included in earnings	—		(3,189)		(555)		(4,908)		—
Unrealized gains (losses) included in OCI	(443)		—		—		—		—
Additions	—		—		534		—		—
Settlements	—		—		—		—		584
Ending balance	$	1,662	$	698	$	3,019	$	(15,924)	$	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2020	$	—	$	(3,189)	$	—	$	(4,908)	$	—

The following table presents assets measured at fair value on a non-recurring basis as of the dates indicated for which there was a fair value adjustment.

	June 30, 2021								June 30, 2020
(in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Loans(1)	$	—	$	—	$	29,201	$	29,201	$	—	$	—	$	21,138	$	21,138
Other real estate	—		—		42		42		—		—		5,902		5,902
MPS receivable	—		—		—		—		—		—		18,202		18,202
Other assets held for sale	—		—		1,170		1,170		—		—		1,634		1,634

(1)    Collateral-dependent loans that were written down to fair value of collateral.

ORE properties are included in other assets on the consolidated balance sheets. The carrying value of ORE at June 30, 2021 and December 31, 2020 was $1.5 million and $1.8 million, respectively.

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The following table presents fair value adjustments recognized in earnings for the three and six months ended June 30, 2021 and 2020 for assets measured at fair value on a non-recurring basis still held at period-end.

	Three Months Ended June 30,				Six Months Ended June 30,				Location in Consolidated Statements of Income
(in thousands)	2021		2020		2021		2020
Loans(1)	$	13,476	$	14,950	$	13,504	$	14,950	Provision for credit losses
Other real estate	2		1,228		2		1,228		Other operating expenses
MPS receivable	—		—		—		2,663		Other operating expenses
Other assets held for sale	76		729		76		2,120		Other operating expenses

(1) Collateral-dependent loans that were written down to fair value of collateral.

Fair Value of Financial Instruments

The following tables present the carrying and estimated fair values of financial instruments at June 30, 2021 and December 31, 2020. The fair values represent management’s best estimates based on a range of methodologies and assumptions. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" to the consolidated financial statements of Synovus' 2020 Form 10-K for a description of how fair value measurements are determined.

	June 30, 2021
(in thousands)	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	$	3,262,676	$	3,262,676	$	3,262,676	$	—	$	—
Trading securities	4,187		4,187		—		4,187		—
Investment securities available for sale	9,442,170		9,442,170		118,231		9,323,939		—
Loans held for sale	750,916		751,632		—		202,216		549,416
Private equity investments	1,026		1,026		—		—		1,026
Mutual funds and mutual funds held in rabbi trusts	41,710		41,710		41,710		—		—
Loans, net	37,719,310		37,743,546		—		—		37,743,546
GGL/SBA loans servicing asset	3,321		3,321		—		—		3,321
Derivative assets	279,454		279,454		—		279,454		—
Financial liabilities
Non-interest-bearing deposits	$	15,345,629	$	15,345,629	$	—	$	15,345,629	$	—
Non-time interest-bearing deposits	27,181,793		27,181,793		—		27,181,793		—
Time deposits	4,644,540		4,663,354		—		4,663,354		—
Total deposits	$	47,171,962	$	47,190,776	$	—	$	47,190,776	$	—
Federal funds purchased and securities sold under repurchase agreements	194,786		194,786		194,786		—		—
Long-term debt	1,203,293		1,261,642		—		1,261,642		—
Earnout liability	6,427		6,427		—		—		6,427
Derivative liabilities	115,181		115,181		—		113,708		1,473

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	December 31, 2020
(in thousands)	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	$	4,252,917	$	4,252,917	$	4,252,917	$	—	$	—
Trading securities	10,880		10,880		—		10,880		—
Investment securities available for sale	7,962,438		7,962,438		20,257		7,940,160		2,021
Loans held for sale	760,123		760,939		—		216,647		544,292
Private equity investments	1,021		1,021		—		—		1,021
Mutual funds and mutual funds held in rabbi trusts	37,650		37,650		37,650		—		—
Loans, net	37,647,248		37,605,881		—		—		37,605,881
GGL/SBA loans servicing asset	3,258		3,258		—		—		3,258
Derivative assets	401,295		401,295		—		401,295		—
Financial liabilities
Non-interest-bearing deposits	$	13,477,854	$	13,477,854	$	—	$	13,477,854	$	—
Non-time interest-bearing deposits	27,265,521		27,265,521		—		27,265,521		—
Time deposits	5,948,196		5,970,146		—		5,970,146		—
Total deposits	$	46,691,571	$	46,713,521	$	—	$	46,713,521	$	—
Federal funds purchased and securities sold under repurchase agreements	227,922		227,922		227,922		—		—
Trading liability for short positions	7,717		7,717		—		7,717		—
Long-term debt	1,202,494		1,266,825		—		1,266,825		—
Earnout liability	5,677		5,677		—		—		5,677
Derivative liabilities	157,167		157,167		—		155,119		2,048

Note 7 - Derivative Instruments and Hedging Activities

Synovus utilizes derivative instruments to manage its exposure to various types of interest rate risk, exposures related to liquidity and credit risk, and to facilitate customer transactions. The primary types of derivative instruments utilized by Synovus consist of interest rate swaps, interest rate lock commitments made to prospective mortgage loan customers, commitments to sell fixed-rate mortgage loans, and foreign currency exchange forwards. Interest rate lock commitments represent derivative instruments since it is intended that such loans will be sold. Synovus is party to master netting arrangements with its dealer counterparties; however, Synovus does not offset assets and liabilities under these arrangements for financial statement presentation purposes. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" to the consolidated financial statements of Synovus' 2020 Form 10-K for additional information regarding accounting policies for derivatives.

Hedging Derivatives

Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. Synovus has entered into interest rate swap contracts to manage overall cash flow changes related to interest rate risk exposure on index-based variable rate commercial loans. The contracts effectively modify Synovus' exposure to interest rate risk by utilizing receive fixed/pay index-based variable rate interest rate swaps.

For cash flow hedges, if the hedged exposure is a cash flow exposure, the effective portion of the gain or loss on the derivative instrument is reported initially as a component of accumulated other comprehensive income (loss), net of the tax impact, and subsequently reclassified into earnings when the hedged transaction affects earnings with the impacts recorded in the same income statement line item used to present the earnings effect of the hedged item. When a cash flow hedge relationship is discontinued but the hedged cash flows, or forecasted transactions, are still expected to occur, gains or losses that were accumulated in OCI are amortized into earnings over the same periods which the hedged transactions would have affected earnings. If, however, it is probable the forecasted transactions will no longer occur, the remaining accumulated amounts in OCI for the impacted cash flow hedges are immediately recognized in earnings.

Synovus recorded unrealized gains of $757 thousand, or $565 thousand, after tax, in OCI during the first quarter of 2021 and $9.8 million, or $7.3 million, after-tax, in OCI, during the first quarter of 2020, related to terminated cash flow hedges, which are being recognized into earnings in conjunction with the effective terms of the original swaps through the fourth

27

quarter of 2025. Synovus recognized pre-tax income of $3.7 million and $5.3 million during the three and six months ended June 30, 2021 related to the amortization of terminated cash flow hedges.

As of June 30, 2021, Synovus expects to reclassify into earnings approximately $41 million in pre-tax income due to the receipt or payment of interest payments on all cash flow hedges within the next twelve months. Included in this amount is approximately $10 million in pre-tax income related to the amortization of terminated cash flow hedges. As of June 30, 2021, the maximum length of time over which Synovus is hedging its exposure to the variability in future cash flows is through the first quarter of 2026.

For derivative instruments that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately.

Counterparty Credit Risk and Collateral

Entering into derivative contracts potentially exposes Synovus to the risk of counterparties’ failure to fulfill their legal obligations, including, but not limited to, potential amounts due or payable under each derivative contract. Notional principal amounts are often used to express the volume of these transactions, but the amounts potentially subject to credit risk are much smaller. Synovus assesses the credit risk of its dealer counterparties by regularly monitoring publicly available credit rating information, evaluating other market indicators, and periodically reviewing detailed financials. Dealer collateral requirements are determined via risk-based policies and procedures and in accordance with existing agreements. Synovus seeks to minimize dealer credit risk by dealing with highly rated counterparties and by obtaining collateral for exposures above certain predetermined limits. Management closely monitors credit conditions within the customer swap portfolio, which management deems to be of higher risk than dealer counterparties. Collateral is secured at origination and credit related fair value adjustments are recorded against the asset value of the derivative as deemed necessary based upon an analysis, which includes consideration of the current asset value of the swap, customer risk rating, collateral value, and customer standing with regards to its swap contractual obligations and other related matters. Such asset values fluctuate based upon changes in interest rates regardless of changes in notional amounts and changes in customer specific risk.

Collateral Requirements

Certain derivative transactions have collateral requirements, both at the inception of the trade and as the value of each derivative position changes. As of June 30, 2021 and December 31, 2020, collateral totaling $118.2 million and $155.4 million, respectively, was pledged to the derivative counterparties to comply with collateral requirements. For derivatives cleared through central clearing houses, the variation margin payments made are legally characterized as settlements of the derivatives. As a result, these variation margin payments are netted against the fair value of the respective derivative contracts in the consolidated balance sheets and related disclosures. At June 30, 2021 and December 31, 2020, Synovus had a variation margin of $114.0 million and $162.7 million respectively, each reducing the derivative liability.

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The following table reflects the notional amount and fair value of derivative instruments included on the consolidated balance sheets.

	June 30, 2021						December 31, 2020
			Fair Value						Fair Value
(in thousands)	Notional Amount		Derivative Assets (1)		Derivative Liabilities (2)		Notional Amount		Derivative Assets (1)		Derivative Liabilities (2)
Derivatives in cash flow hedging relationships:
Interest rate contracts	$	3,250,000	$	49,153	$	89	$	3,000,000	$	80,802	$	—
Total derivatives designated as hedging instruments			$	49,153	$	89			$	80,802	$	—
Derivatives not designated   as hedging instruments:
Interest rate contracts(3)	$	9,023,627	$	225,813	$	113,154	$	8,784,141	$	314,234	$	153,204
Mortgage derivatives - interest rate lock commitments	198,775		4,488		—		306,138		6,259		—
Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans	194,000		—		343		230,500		—		1,611
Other contracts(4)	171,321		—		122		234,884		—		304
Visa derivative	—		—		1,473		—		—		2,048
Total derivatives not designated as hedging instruments			$	230,301	$	115,092			$	320,493	$	157,167

(1)    Derivative assets are recorded in other assets on the consolidated balance sheets.

(2)    Derivative liabilities are recorded in other liabilities on the consolidated balance sheets.

(3)    Includes interest rate contracts for customer swaps and offsetting positions, net of variation margin payments.

(4)    Includes risk participation agreements sold. Additionally, the notional amount of risk participation agreements purchased was $6.3 million and $2.6 million at June 30, 2021 and December 31, 2020, respectively.

Synovus also provides foreign currency exchange services, primarily forward contracts, with counterparties to allow commercial customers to mitigate exchange rate risk. Synovus covers its risk by entering into an offsetting foreign currency exchange forward contract. The notional amount of foreign currency exchange forwards was $19.9 million and $24.1 million at June 30, 2021 and December 31, 2020, respectively. The fair value of foreign currency exchange forwards was negligible at June 30, 2021 and December 31, 2020 due to the very short duration of these contracts.

The following table presents the effect of hedging derivative instruments on the consolidated statements of income and the total amounts for the respective line item affected for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Total amounts presented in the consolidated statements of income in interest income on loans	$	7,605	$	5,261	$	15,947	$	5,086
Gain/loss on cash flow hedging relationships:(1)
Interest rate swaps:
Realized gains (losses) reclassified from AOCI, pre-tax, to interest income on loans	3,657		270		5,256		390
Pre-tax income recognized on cash flow hedges	$	3,657	$	270	$	5,256	$	390

(1)    See "Part I - Item 1. Financial Statements and Supplementary Data - Note 5 - Shareholders' Equity and Other Comprehensive Income (Loss) in this Report for additional information.

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The pre-tax effect of changes in fair value from derivative instruments not designated as hedging instruments on the consolidated statements of income for the three and six months ended June 30, 2021 and 2020 is presented below.

		Gain (Loss) Recognized in Consolidated Statements of Income
		Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	Location in Consolidated Statements of Income	2021		2020		2021		2020
Derivatives not designated   as hedging instruments:
Interest rate contracts(1)	Capital markets income	$	(637)	$	653	$	310	$	49
Other contracts(2)	Capital markets income	(19)		4		182		(333)
Mortgage derivatives - interest rate lock commitments	Mortgage banking income	(53)		(634)		(1,772)		6,390
Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans	Mortgage banking income	(4,974)		3,701		1,268		(1,228)
Total derivatives not designated as hedging instruments		$	(5,683)	$	3,724	$	(12)	$	4,878

(1)    Gain (loss) represents net fair value adjustments (including credit related adjustments) for customer swaps and offsetting positions. Additionally, losses related to termination of customer swaps of $2.5 million were recorded in other non-interest expense during the first quarter of 2020.

(2)    Includes risk participation agreements sold.

Note 8 - Net Income Per Common Share

The following table displays a reconciliation of the information used in calculating basic and diluted net income per common share for the three and six months ended June 30, 2021 and 2020. Diluted net income per common share incorporates the potential impact of contingently issuable shares, including awards which require future service as a condition of delivery of the underlying common stock.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share data)	2021		2020		2021		2020
Basic Net Income Per Common Share:
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Weighted average common shares outstanding	148,113		147,288		148,289		147,300
Net income per common share, basic	$	1.20	$	0.58	$	2.41	$	0.78
Diluted Net Income Per Common Share:
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Weighted average common shares outstanding	148,113		147,288		148,289		147,300
Effect of dilutive outstanding equity-based awards, warrants, and earnout payments	1,634		445		1,475		767
Weighted average diluted common shares	149,747		147,733		149,764		148,067
Net income per common share, diluted	$	1.19	$	0.57	$	2.38	$	0.78

For the three months ended June 30, 2021 and 2020, there were zero and 1.3 million, respectively, potentially dilutive shares related to stock options to purchase shares of common stock that were outstanding, and for the six months ended June 30, 2021 and 2020, there were 21 thousand and 639 thousand, respectively, potentially dilutive shares related to stock options to purchase shares of common stock that were outstanding. These potentially dilutive shares were not included in the computation of diluted net income per common share because the effect would be anti-dilutive.

Note 9 - Commitments and Contingencies

In the normal course of business, Synovus enters into commitments to extend credit such as loan commitments and letters of credit to meet the financing needs of its customers. Synovus uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. Commitments to extend credit are agreements 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. Synovus also has commitments to fund certain low-income housing investments, solar energy, new market, and CRA investments.

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The contractual amount of these financial instruments represents Synovus' maximum credit risk should the counterparty draw upon the commitment, and should the counterparty subsequently fail to perform according to the terms of the contract. Since many of the commitments are expected to expire without being drawn upon, total commitment amounts do not necessarily represent future cash requirements. Additionally, certain commitments (primarily consumer) can generally be canceled by providing notice to the borrower.

The ACL associated with unfunded commitments and letters of credit is recorded within other liabilities on the consolidated balance sheets. At June 30, 2021, the ACL for unfunded commitments was $46.9 million, compared to a reserve of $47.8 million at December 31, 2020. Additionally, an immaterial amount of unearned fees relating to letters of credit are recorded within other liabilities on the consolidated balance sheets.

Synovus invests in certain LIHTC partnerships which are engaged in the development and operation of affordable multi-family housing pursuant to Section 42 of the Code. Additionally, Synovus invests in certain solar energy tax credit partnerships pursuant to Section 48 of the Code and certain new market tax credit partnerships pursuant to section 45D of the Code. Synovus typically acts as a limited partner in these investments and does not exert control over the operating or financial policies of the partnerships and as such, is not considered the primary beneficiary of the partnership. For certain of its LIHTC investments, Synovus provides financing during the construction and development of the properties and is at risk for the funded amount of its equity investment plus the outstanding amount of any construction loans in excess of the fair value of the collateral for the loan, but has no obligation to fund the operations or working capital of the partnerships and is not exposed to losses beyond Synovus’ investment. Synovus receives tax credits related to these investments which are subject to recapture by taxing authorities based on compliance provisions required to be met at the project level.

Synovus also invests in certain other CRA partnerships including SBIC programs. The SBIC is a program initiated by the SBA in 1958 to assist in the funding of small business loans.

(in thousands)	June 30, 2021		December 31, 2020
Letters of credit*	$	185,433	$	190,562
Commitments to fund commercial and industrial loans	8,617,252		8,200,608
Commitments to fund commercial real estate, construction, and land development loans	3,286,077		3,290,041
Commitments under home equity lines of credit	1,681,782		1,602,831
Unused credit card lines	1,002,367		1,012,313
Other loan commitments	566,590		472,233
Total letters of credit and unfunded lending commitments	$	15,339,501	$	14,768,588

LIHTC, solar energy tax credit, new market tax credit, and other CRA partnerships:
Carrying amount included in other assets	$	350,692	$	262,855
Amount of future funding commitments included in carrying amount	198,575		133,946
Permanent and short-term construction loans and letter of credit commitments	200,476		84,552
Funded portion of permanent and short-term loans and letters of credit	37,362		9,762

*    Represent the contractual amount net of risk participations purchased of $28.5 million and $30.2 million at June 30, 2021 and December 31, 2020, respectively.

Merchant Services

In accordance with credit and debit card association rules, Synovus provides merchant processing services for customers with a contractual arrangement under which certain sales and processing support are provided through an outside merchant services provider with Synovus owning the merchant contract relationship. In addition, Synovus sponsors various third-party MPS businesses that process credit and debit card transactions on behalf of merchants. In connection with these services, a liability may arise in the event of a billing dispute between the merchant and a cardholder that is ultimately resolved in the cardholder's favor. If the merchant defaults on its obligations, the cardholder, through its issuing bank, generally has until six months after the date of the transaction to present a chargeback to the MPS, which is primarily liable for any losses on covered transactions. However, if a sponsored MPS fails to meet its obligations, then Synovus, as the sponsor, could be held liable for the disputed amount. Synovus seeks to mitigate this risk through its contractual arrangements with the MPS and the merchants by withholding future settlements, retaining cash reserve accounts and/or obtaining other security. For the three and six months ended June 30, 2021, Synovus and the sponsored entities processed and settled $28.89 billion and $55.15 billion of transactions, respectively. For the three and six months ended June 30, 2020, Synovus and the sponsored entities processed and settled $16.40 billion and $34.75 billion of transactions, respectively.

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Synovus covered chargebacks related to a particular sponsored MPS during 2019 and 2018 where the MPS’s cash reserve account was unavailable to support the chargebacks. As of June 30, 2021, the remaining amount, net of reserves, included in other assets and classified in NPAs, is $15.3 million, compared to $15.6 million at December 31, 2020. While Synovus has contractual protections to mitigate against loss, repayment of the amounts owed to Synovus will depend in large part upon the continued financial viability and/or valuation of the MPS.

Legal Proceedings

Synovus and its subsidiaries are subject to various legal proceedings, claims and disputes that arise in the ordinary course of its business. Additionally, in the ordinary course of business, Synovus and its subsidiaries are subject to regulatory and governmental examinations, information gathering requests, inquiries and investigations. Synovus, like many other financial institutions, has been the target of legal actions and other proceedings asserting claims for damages and related relief for losses. These actions include mortgage loan and other loan put-back claims, claims and counterclaims asserted by individual borrowers related to their loans, allegations of violations of state and federal laws and regulations relating to banking practices, and allegations related to Synovus' participation in government stimulus programs, including putative class action matters. In addition to actual damages, if Synovus does not prevail in such asserted legal actions, credit-related litigation could result in additional write-downs or charge-offs of assets, which could adversely affect Synovus' results of operations during the period in which the write-down or charge-off were to occur.

Synovus carefully examines and considers each legal matter, and, in those situations where Synovus determines that a particular legal matter presents loss contingencies that are both probable and reasonably estimable, Synovus establishes an appropriate reserve. An event is considered to be probable if the future event is likely to occur. While the final outcome of any legal proceeding is inherently uncertain, based on the information currently available, advice of counsel and available insurance coverage, management believes that the amounts accrued with respect to legal matters as of June 30, 2021 are adequate. The actual costs of resolving legal claims may be higher or lower than the amounts accrued.

In addition, where Synovus determines that there is a reasonable possibility of a loss in respect of legal matters, Synovus considers whether it is able to estimate the total reasonably possible loss or range of loss. An event is “reasonably possible” if “the chance of the future event or events occurring is more than remote but less than likely.” An event is “remote” if “the chance of the future event or events occurring is more than slight but less than reasonably possible." In many situations, Synovus may be unable to estimate reasonably possible losses due to the preliminary nature of the legal matters, as well as a variety of other factors and uncertainties. For those legal matters where Synovus is able to estimate a range of reasonably possible losses, management currently estimates the aggregate range from our outstanding litigation is from zero to $5 million in excess of the amounts accrued, if any, related to those matters. This estimated aggregate range is based upon information currently available to Synovus, and the actual losses could prove to be lower or higher. As there are further developments in these legal matters, Synovus will reassess these matters, and the estimated range of reasonably possible losses may change as a result of this assessment. Based on Synovus' current knowledge and advice of counsel, management presently does not believe that the liabilities arising from these legal matters will have a material adverse effect on Synovus' consolidated financial condition, results of operations or cash flows. However, it is possible that the ultimate resolution of these legal matters could have a material adverse effect on Synovus' results of operations or financial condition for any particular period.

Synovus intends to vigorously pursue all available defenses to these legal matters, but will also consider other alternatives, including settlement, in situations where there is an opportunity to resolve such legal matters on terms that Synovus considers to be favorable, including in light of the continued expense and distraction of defending such legal matters. Synovus maintains insurance coverage, which may be available to cover legal fees, or potential losses that might be incurred in connection with such legal matters. The above-noted estimated range of reasonably possible losses does not take into consideration insurance coverage which may or may not be available for the respective legal matters.

Note 10 - Segment Reporting

Synovus' business segments are based on the products and services provided or the customers served and reflect the manner in which financial information is evaluated by the chief operating decision makers. Synovus has three major reportable business segments: Community Banking, Wholesale Banking, and Financial Management Services, with functional activities such as treasury, technology, operations, marketing, finance, enterprise risk, legal, human resources, corporate communications, executive management, among others, included in Treasury and Corporate Other.

Business segment results are determined based upon Synovus' management reporting system, which assigns balance sheet and income statement items to each of the business segments. Certain assets, liabilities, revenues, and expenses not allocated or attributable to a particular business segment are included in Treasury and Corporate Other. Synovus's third-party lending consumer loans and loans held for sale as well as PPP loans are included in Treasury and Corporate Other. The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike

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financial accounting, are not based on authoritative guidance similar to GAAP. As a result, reported segment results are not necessarily comparable with similar information reported by other financial institutions.

The Community Banking business segment serves customers using a relationship-based approach through its branch, ATM, commercial, and private wealth network in addition to mobile, Internet, and telephone banking. This segment primarily provides individual, small business, and corporate customers with an array of comprehensive banking products and services including commercial, home equity, and other consumer loans, credit and debit cards, and deposit accounts.

The Wholesale Banking business segment serves primarily larger corporate customers by providing commercial lending and deposit services through specialty teams including middle market, CRE, senior housing, national accounts, premium finance, structured lending, healthcare, asset-based lending, and community investment capital.

The Financial Management Services business segment serves its customers by providing mortgage and trust services and also specializing in professional portfolio management for fixed-income securities, investment banking, the execution of securities transactions as a broker/dealer, asset management, financial planning, and family office services, as well as the provision of individual investment advice on equity and other securities.

Synovus uses a centralized FTP methodology to attribute appropriate net interest income to the business segments. The intent of the FTP methodology is to transfer interest rate risk from the business segments by providing matched duration funding of assets and liabilities. The result is to centralize the financial impact, management, and reporting of interest rate risk in the Treasury and Corporate Other function where it can be centrally monitored and managed. Treasury and Corporate Other includes certain assets and/or liabilities managed within that function. Additionally, Treasury and Corporate Other also charges (credits) an internal cost of funds for assets held in (or pays for funding provided by) each business segment. The process for determining FTP is based on a number of factors and assumptions, including prevailing market interest rates, the expected lives of various assets and liabilities, and the Company's broader funding profile.

The following tables present certain financial information for each reportable business segment for the three and six months ended June 30, 2021 and 2020. The application and development of management reporting methodologies is a dynamic process and is subject to periodic enhancements. As these enhancements are made, financial results presented by each reportable business segment may be periodically revised.

	Three Months Ended June 30, 2021
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	202,881	$	136,126	$	18,935	$	23,918	$	381,860
Non-interest revenue	32,212		7,000		52,345		15,530		107,087
Non-interest expense	69,120		21,290		46,773		133,348		270,531
Pre-provision net revenue	$	165,973	$	121,836	$	24,507	$	(93,900)	$	218,416

	Three Months Ended June 30, 2020
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	219,097	$	145,016	$	20,069	$	(7,616)	$	376,566
Non-interest revenue	23,747		5,682		52,976		91,079		173,484
Non-interest expense	74,764		22,934		48,394		138,049		284,141
Pre-provision net revenue	$	168,080	$	127,764	$	24,651	$	(54,586)	$	265,909

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	Six Months Ended June 30, 2021
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	409,123	$	270,200	$	39,930	$	36,463	$	755,716
Non-interest revenue	61,966		14,319		110,928		30,830		218,043
Non-interest expense	137,178		42,014		94,447		264,026		537,665
Pre-provision net revenue	$	333,911	$	242,505	$	56,411	$	(196,733)	$	436,094

	Six Months Ended June 30, 2020
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	415,601	$	268,186	$	37,453	$	28,586	$	749,826
Non-interest revenue	54,071		15,009		100,360		107,901		277,341
Non-interest expense	148,737		43,647		91,785		276,252		560,421
Pre-provision net revenue	$	320,935	$	239,548	$	46,028	$	(139,765)	$	466,746

	June 30, 2021
(dollars in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Loans, net of deferred fees and costs	$	10,730,544	$	19,369,933	$	5,078,318	$	3,057,223	$	38,236,018
Total deposits	$	31,317,490	$	10,983,120	$	737,202	$	4,134,150	$	47,171,962
Total full-time equivalent employees	2,114		288		809		1,772		4,983
	December 31, 2020
(dollars in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Loans, net of deferred fees and costs	$	11,171,013	$	18,810,729	$	5,370,790	$	2,900,452	$	38,252,984
Total deposits	$	29,141,242	$	11,958,105	$	739,200	$	4,853,024	$	46,691,571
Total full-time equivalent employees	2,199		285		832		1,818		5,134

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ITEM 2. – MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

In this Report, the words “Synovus,” “the Company,” “we,” “us,” and “our” refer to Synovus Financial Corp. together with Synovus Bank and Synovus' other wholly-owned subsidiaries, except where the context requires otherwise.

FORWARD-LOOKING STATEMENTS

Certain statements made or incorporated by reference in this Report which are not statements of historical fact, including those under “Management's Discussion and Analysis of Financial Condition and Results of Operations,” and elsewhere in this Report, constitute forward-looking statements within the meaning of, and subject to the protections of, Section 27A of the Securities Act and Section 21E of the Exchange Act. Forward-looking statements include statements with respect to Synovus' beliefs, plans, objectives, goals, targets, expectations, anticipations, assumptions, estimates, intentions and future performance and involve known and unknown risks, many of which are beyond Synovus' control and which may cause Synovus' actual results, performance or achievements or the financial services industry or economy generally, to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements.

All statements other than statements of historical fact are forward-looking statements. You can identify these forward-looking statements through Synovus' use of words such as “believes,” “anticipates,” “expects,” “may,” “will,” “assumes,” “predicts,” “could,” “should,” “would,” “intends,” “targets,” “estimates,” “projects,” “plans,” “potential” and other similar words and expressions of the future or otherwise regarding the outlook for Synovus' future business and financial performance and/or the performance of the financial services industry and economy in general. Forward-looking statements are based on the current beliefs and expectations of Synovus' management and are subject to significant risks and uncertainties. Actual results may differ materially from those contemplated by such forward-looking statements. A number of factors could cause actual results to differ materially from those contemplated by the forward-looking statements in this document. Many of these factors are beyond Synovus' ability to control or predict. These factors include, but are not limited to:

(1) the risks and uncertainties related to the impact of the COVID-19 pandemic, and its variants, on our assets, business, capital and liquidity, financial condition, prospects and results of operations;

(2) the risk that we may not realize the expected benefits from our efficiency and growth initiatives or that we may not be able to realize such cost savings or revenue benefits in the time period expected, which could negatively affect our future profitability;

(3) the risk that any economic downturn and contraction could have a material adverse effect on our capital, financial condition, credit quality, results of operations and future growth, including the risk that the current economic contraction could last much longer and be more severe if efforts to contain the pandemic are unsuccessful;

(4) the risk that competition in the financial services industry may adversely affect our future earnings and growth;

(5) our ability to attract and retain employees and the impact of executive management transitions that are key to our growth and efficiency strategies;

(6) risks that our asset quality may deteriorate, our allowance for credit losses may prove to be inadequate or may be negatively affected by credit risk exposures, and the risk that we may be unable to obtain full payment in respect of any loan or other receivables;

(7) the impact of recent and proposed changes in governmental policy, laws and regulations, including recently enacted laws, regulations and guidance related to government stimulus programs related to the COVID-19 pandemic, proposed and recently enacted changes in monetary policy and in the regulation and taxation of banks and financial institutions, or the interpretation or application thereof and the uncertainty of future implementation and enforcement of these regulations - including the risk of any resulting inflation and interest rate increases;

(8) changes in the interest rate environment, including changes to the federal funds rate to include a negative interest rate environment, and competition in our primary market area may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income;

(9) the risk that our current and future information technology system enhancements and operational initiatives may not be successfully implemented, which could negatively impact our operations;

(10) risks related to our implementation of new lines of business, new products and services or new technologies;

(11) risks related to our business relationships with, and reliance upon, third parties that have strategic partnerships with us or that provide key components of our business infrastructure, including the costs of services and products provided to us by third parties, and risks related to disruptions in service or financial difficulties with a third-party vendor or business relationship;

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(12) the risk that our enterprise risk management framework, our compliance program, or our corporate governance and supervisory oversight functions may not identify or address risks adequately, which may result in unexpected losses;

(13) 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;

(14) changes in the cost and availability of funding due to changes in the deposit market and credit market;

(15) risks related to the ability of our operational framework to identify and manage risks associated with our business such as credit risk, compliance risk, reputational risk, and operational risk, including by virtue of our relationships with third-party business partners, as well as our relationship with third-party vendors and other service providers;

(16) our ability to identify and address cyber-security risks such as data security breaches, malware, "denial of service" attacks, "hacking" and identity theft, a failure of which could disrupt our business and result in the disclosure of and/or misuse or misappropriation of confidential or proprietary information, disruption or damage of our systems, increased costs, significant losses, or adverse effects to our reputation;

(17) the risk that we may be exposed to potential losses in the event of fraud and/or theft, or in the event that a third-party vendor, obligor, or business partner fails to pay amounts due to us under that relationship or under any arrangement that we enter into with them;

(18) the impact on our financial results, reputation, and business if we are unable to comply with all applicable federal and state regulations or other supervisory actions or directives and any necessary capital initiatives;

(19) the risks that if economic conditions worsen further or regulatory capital rules are modified, we may be required to undertake initiatives to improve or conserve our capital position;

(20) risks related to the continued use, availability and reliability of LIBOR and the risks related to the transition from LIBOR to SOFR or other variable alternative reference rates we may use;

(21) restrictions or limitations on access to funds from historical and alternative sources of liquidity could adversely affect our overall liquidity, which could restrict our ability to make payments on our obligations and our ability to support asset growth and sustain our operations and the operations of Synovus Bank;

(22) our ability to receive dividends from our subsidiaries could affect our liquidity, including our ability to pay dividends or take other capital actions;

(23) the risk that we may not be able to identify suitable bank and non-bank acquisition opportunities as part of our growth strategy and even if we are able to identify attractive acquisition opportunities, we may not be able to complete such transactions on favorable terms or realize the anticipated benefits from such acquisitions;

(24) the risk that we could realize losses if we sell non-performing assets and the proceeds we receive are lower than the carrying value of such assets;

(25) risks related to regulatory approval to take certain actions, including any dividends on our common stock or preferred stock, any repurchases of common stock or any other issuance or redemption of any other regulatory capital instruments;

(26) the risk that our concentrated operations in the Southeastern U.S. make us vulnerable to local economic conditions, local weather catastrophes, public health issues, and other external events;

(27) the costs and effects of litigation, investigations or similar matters, or adverse facts and developments related thereto;

(28) risks related to the fluctuation in our stock price and general volatility in the stock market;

(29) the effects of any damages to our reputation resulting from developments related to any of the items identified above; and

(30) other factors and other information contained in this Report and in other reports and filings that we make with the SEC under the Exchange Act, including, without limitation, those found in "Part II - Item 1A. Risk Factors" of this Report.

For a discussion of these and other risks that may cause actual results to differ from expectations, refer to “Part I - Item 1A. Risk Factors” and other information contained in Synovus' 2020 Form 10-K and our other periodic filings, including quarterly reports on Form 10-Q and current reports on Form 8-K, that we file from time to time with the SEC. All written or oral forward-looking statements that are made by or are attributable to Synovus are expressly qualified by this cautionary notice. You should not place undue reliance on any forward-looking statements since those statements speak only as of the date on which the statements are made. Synovus undertakes no obligation to update any forward-looking statement to reflect events

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or circumstances after the date on which the statement is made or to reflect the occurrence of new information or unanticipated events, except as may otherwise be required by law.

INTRODUCTION AND CORPORATE PROFILE

Synovus Financial Corp. is a financial services company and a registered bank holding company headquartered in Columbus, Georgia. Through its wholly-owned subsidiary, Synovus Bank, a Georgia state-chartered bank that is a member of the Federal Reserve System, the Company provides commercial and retail banking in addition to a full suite of specialized products and services including private banking, treasury management, wealth management, mortgage services, premium finance, asset-based lending, structured lending, and international banking. Synovus also provides financial planning and investment advisory services through its wholly-owned subsidiaries, Synovus Trust and Synovus Securities, as well as its GLOBALT and Creative Financial Group divisions.

Synovus Bank is positioned in some of the highest growth markets in the Southeast, with 285 branches in Alabama, Florida, Georgia, South Carolina, and Tennessee.

The following financial review summarizes the significant trends, changes in our business, transactions, and other matters affecting Synovus’ results of operations for the three and six months ended June 30, 2021 and financial condition as of June 30, 2021 and December 31, 2020. This discussion supplements, and should be read in conjunction with, the unaudited interim consolidated financial statements and notes thereto contained elsewhere in this Report and the consolidated financial statements of Synovus, the notes thereto, and management’s discussion and analysis contained in Synovus' 2020 Form 10-K.

Management's Discussion and Analysis of Financial Condition and Results of Operations consists of:

•Discussion of Results of Operations - Reviews Synovus' financial performance, as well as selected balance sheet items, items from the statements of income, significant transactions, and certain key ratios that illustrate Synovus' performance.

•Credit Quality, Capital Resources and Liquidity - Discusses credit quality, market risk, capital resources, and liquidity, as well as performance trends. It also includes a discussion of liquidity policies, how Synovus obtains funding, and related performance.

•Additional Disclosures - Discusses additional important matters including critical accounting policies and non-GAAP financial measures used within this Report.

A reading of each section is important to understand fully our financial performance.

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DISCUSSION OF RESULTS OF OPERATIONS

Table 1 - Consolidated Financial Highlights
	Three Months Ended June 30,								Six Months Ended June 30,
(dollars in thousands, except per share data)	2021			2020			Change		2021			2020			Change
Net interest income	$	381,860		$	376,566		1	%	$	755,716		$	749,826		1	%
(Reversal of) provision for credit losses	(24,598)			141,851			(117)		(43,173)			300,573			(114)
Non-interest revenue	107,087			173,484			(38)		218,043			277,341			(21)
Adjusted non-interest revenue(1)	105,961			93,232			14		218,115			195,002			12
Total FTE revenue	489,738			550,911			(11)		975,324			1,028,814			(5)
Adjusted total revenue(1)	488,612			470,659			4		975,396			946,475			3
Non-interest expense	270,531			284,141			(5)		537,665			560,421			(4)
Adjusted non-interest expense(1)	268,240			274,275			(2)		534,051			547,824			(3)
Income before income taxes	243,014			124,058			96		479,267			166,173			188
Net income	186,200			93,192			100		373,292			131,712			183
Net income available to common shareholders	177,909			84,901			110		356,711			115,131			210
Net income per common share, basic	1.20			0.58			107		2.41			0.78			209
Net income per common share, diluted	1.19			0.57			109		2.38			0.78			205
Adjusted net income per common share, diluted(1)	1.20			0.23			422		2.40			0.44			446
Net interest margin(2)	3.02		%	3.13		%	(11)	bps	3.03		%	3.25		%	(22)	bps
Net charge-off ratio(2)	0.28			0.24			4		0.24			0.23			1
Return on average assets(2)	1.36			0.71			65		1.38			0.52			86
Adjusted return on average assets(1)(2)	1.37			0.32			105		1.39			0.32			107
Efficiency ratio-FTE	55.24			51.58			366		55.13			54.47			66
Adjusted tangible efficiency ratio(1)	54.41			57.71			(330)		54.26			57.32			(306)

(1)    See "Table 14 - Reconciliation of Non-GAAP Financial Measures” in this Report for the applicable reconciliation to the most comparable GAAP measure.

(2)    Annualized

	June 30, 2021			March 31, 2021			Sequential Quarter Change			June 30, 2020			Year-Over-Year Change
(dollars in thousands)
Loans, net of deferred fees and costs	$	38,236,018		$	38,805,101		$	(569,083)		$	39,914,297		$	(1,678,279)
Total average loans	38,496,477			38,212,267			284,210			40,136,090			(1,639,613)
Total deposits	47,171,962			47,368,951			(196,989)			44,194,580			2,977,382
Core deposits (excludes brokered deposits)	44,203,000			44,174,284			28,716			39,904,278			4,298,722
Core transaction deposits (excludes brokered and public fund deposits)	35,506,980			34,804,575			702,405			29,425,251			6,081,729
Total average deposits	47,349,646			46,454,878			894,768			43,096,475			4,253,171
Non-performing assets ratio	0.46		%	0.50		%	(4)		bps	0.44		%	2		bps
Non-performing loans ratio	0.42			0.40			2			0.37			5
Past due loans over 90 days	0.01			0.01			—			0.02			(1)
CET1 capital	$	4,214,720		$	4,184,715		$	30,005		$	3,827,229		$	387,491
Tier 1 capital	4,751,865			4,721,860			30,005			4,364,374			387,491
Total risk-based capital	5,725,176			5,733,956			(8,780)			5,459,568			265,608
CET1 capital ratio	9.75		%	9.74		%	1		bps	8.90		%	85		bps
Tier 1 capital ratio	11.00			10.99			1			10.15			85
Total risk-based capital ratio	13.25			13.34			(9)			12.70			55
Total shareholders’ equity to total assets ratio	9.53			9.36			17			9.34			19
Tangible common equity ratio(1)	7.73			7.55			18			7.41			32
Return on average common equity(2)	15.40			15.77			(37)			7.48			792
Adjusted return on average common equity(1)(2)	15.50			15.93			(43)			3.00			1,250
Adjusted return on average tangible common equity(1)(2)	17.52			18.04			(52)			3.60			1,392

(1)    See "Table 14 - Reconciliation of Non-GAAP Financial Measures” in this Report for the applicable reconciliation to the most comparable GAAP measure.

(2)    Quarter annualized

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Executive Summary

Net income available to common shareholders for the second quarter of 2021 was $177.9 million, or $1.19 per diluted common share ($1.20 on an adjusted basis(1)), compared to $84.9 million, or $0.57 per diluted common share ($0.23 adjusted(1)), for the second quarter of 2020. Net income available to common shareholders for the first six months of 2021 was $356.7 million, or $2.38 per diluted common share ($2.40 adjusted(1)), compared to $115.1 million, or $0.78 per diluted common share ($0.44 adjusted(1)), for the first six months of 2020. The year-over-year increases for all time periods were impacted by significant changes in the provision for credit losses as a reversal was recorded for the three and six months ended June 30, 2021 due to continued improvement in the economic outlook, and significant provision was recorded for the three and six months ended June 30, 2020 due to the onset of COVID-19 following the adoption of CECL on January 1, 2020.

Net interest income for the six months ended June 30, 2021 was $755.7 million, up $5.9 million compared to the same period in 2020, including $45.2 million in PPP fees during 2021 and $9.2 million in 2020. Net interest margin was down 22 bps over the comparable six-month period to 3.03%, due primarily to the decline in market interest rates and average growth in investment securities available for sale and interest-bearing funds held at the Federal Reserve Bank. On a sequential quarter basis, net interest income was up $8.0 million, or 2%, primarily due to continued asset growth, further declines in deposit costs, and a higher day count. Net interest margin for the second quarter was 3.02%, which was down 2 bps compared to the first quarter of 2021 and impacted by lower PPP fees. Based on current market conditions and our expectations for loan growth, we expect that quarterly net interest income excluding PPP fees will increase in the second half of the year, driven by loan growth, deployment of liquidity, a deceleration of prepayments, and further deposit cost reductions.

Non-interest revenue for the second quarter of 2021 was $107.1 million, down $66.4 million, or 38%, and year-to-date was $218.0 million, down $59.3 million, or 21%, compared to the same periods in 2020 due to gains on sales of investment securities of $69.4 million and $78.1 million in the respective 2020 periods. Adjusted non-interest revenue(1) for the second quarter of 2021 was $106.0 million, up $12.7 million, or 14%, from the second quarter of 2020 primarily due to higher core banking fees, brokerage revenue, and fiduciary and asset management fees partially offset by lower mortgage banking income. Year-to-date adjusted non-interest revenue(1) was $218.1 million, up $23.1 million, or 12%, compared to the same period in 2020 largely due to higher core banking fees, fiduciary and asset management fees, and brokerage revenue partially offset by lower capital markets income. In the second half of 2021, we expect diversified growth across our non-interest revenue sources to mostly offset the continued normalization of mortgage banking income.

Non-interest expense for the second quarter of 2021 was $270.5 million, down $13.6 million, or 5%, compared to the second quarter of 2020 and adjusted non-interest expense(1) of $268.2 million was down $6.0 million, or 2%. On a year-to-date basis, non-interest expense was down $22.8 million, or 4%, and adjusted non-interest expense(1) was down $13.8 million, or 3%, compared to the same period in 2020. The decline in adjusted non-interest expense during 2021 was primarily due to 2020 being impacted by higher expense associated with initiating Synovus Forward, and in 2021, benefits are being realized from Synovus Forward efficiencies. The efficiency ratio-FTE for the first six months of 2021 was 55.13%, compared to 54.47% for the first six months of 2020. The adjusted tangible efficiency ratio(1) for the first six months of 2021 was 54.26%, down 306 bps compared to the same period a year ago. We remain committed to prudent expense management, enabling us to continue investing in areas that position us for greater success, deliver a superior customer experience, and promote profitable growth.

At June 30, 2021, loans, net of deferred fees and costs, of $38.24 billion, decreased $17.0 million from December 31, 2020. C&I loans grew $223.3 million excluding a $593.3 million decline in PPP loans from forgiveness, and CRE was relatively flat. Growth in consumer loans of $317.7 million, led by purchases of third-party lending loans, offset declines in consumer mortgages and HELOCs that were primarily the result of accelerated prepayment activity and excess consumer liquidity. We expect loan growth for 2021 to be at the low end of our initial 2%-4% guidance primarily due to the higher than expected prepayment activity that has occurred so far this year, excluding balance changes in PPP and third-party lending loans.

Credit metrics remained stable and near historical lows as of June 30, 2021 with NPAs at 46 bps, NPLs at 42 bps, and total past dues at 13 bps, as a percentage of total loans, and YTD net charge-offs at 24 bps annualized. We expect net charge-offs to remain relatively stable in the second half of 2021, assuming no material change in economic outlook. Criticized and classified loans have begun to decline, decreasing 14% sequentially, and further reductions are expected as we progress through the rest of 2021 with improving financial performance in the hotel industry and other industries negatively impacted by COVID-19 anticipated. The ACL at June 30, 2021 totaled $563.6 million, a decrease of $89.9 million from December 31, 2020, resulting from the continued improved overall economic outlook. The ACL to loans coverage ratio at June 30, 2021 was 1.47%, or 1.54% excluding PPP loans.

Total period-end deposits at June 30, 2021 increased $480.4 million, or 1%, compared to December 31, 2020. Core transaction deposits increased $2.75 billion, or 8%, compared to December 31, 2020, largely due to government stimulus programs including deposits associated with PPP loans. Total deposit costs of 16 bps during the second quarter of 2021 declined 6 bps and 12 bps, respectively, compared to the first quarter of 2021 and the fourth quarter of 2020, due to repricing and intentional, strategic remixing to reduce higher cost deposits.

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At June 30, 2021, Synovus' CET1 ratio was 9.75%, well in excess of regulatory requirements, and was up 9 bps compared to December 31, 2020, driven by earnings. We will continue to opportunistically deploy capital on our balance sheet and to our shareholders. Synovus announced on January 26, 2021 that its Board of Directors authorized share repurchases of up to $200 million in 2021. While Synovus did not have any share repurchases during the first quarter of 2021, the Company repurchased $92.5 million, or 1.9 million shares of its common stock, at an average price of $47.51 during the second quarter of 2021. Synovus has also repurchased $27.1 million, or 637 thousand shares of its common stock, at an average price of $42.53 per share, as of July 31, 2021. Based on current conditions and economic outlook, we expect to complete the full authorization in the second half of the year.

More detail on Synovus' financial results for the three and six months ended June 30, 2021 may be found in subsequent sections of "Item 2. – Management's Discussion and Analysis of Financial Condition and Results of Operations" of this Report. See also "Item 1A. – Risk Factors" of this Report.

(1) See "Table 14 - Reconciliation of Non-GAAP Financial Measures” in this Report for applicable reconciliation to the most comparable GAAP measure.

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Changes in Financial Condition

During the six months ended June 30, 2021, total assets increased $544.5 million to $54.94 billion. We deployed excess liquidity as cash and cash equivalents decreased $990.2 million, investment securities available for sale increased $1.48 billion, and consumer loans grew with purchases of $1.04 billion of third-party lending loans. Total loans decreased $17.0 million as PPP loan forgiveness offset C&I growth, and elevated pay-offs in consumer mortgages and HELOCs offset the third-party lending purchases. The loan to deposit ratio was 81.1% at June 30, 2021, lower as compared to 81.9% in December 31, 2020, and 90.3% at June 30, 2020, due to excess liquidity, primarily due to various stimulus efforts which have supported deposit growth while muting the demand for credit.

Total shareholders' equity at June 30, 2021 increased $76.4 million as compared to December 31, 2020, and included net income of $373.3 million, proceeds from stock option exercises of $14.9 million, and share-based compensation expense of $14.5 million, partially offset by dividends declared on common and preferred stock of $97.7 million and $16.6 million, respectively, unrealized losses in investment securities available for sale and cash flow hedges of $86.4 million and $26.5 million, respectively, and share repurchases of $92.5 million.

Loans

The following table compares the composition of the loan portfolio at June 30, 2021, December 31, 2020, and June 30, 2020.

Table 2 - Loans by Portfolio Class
									June 30, 2021 vs. December 31, 2020 Change								June 30, 2021 vs. June 30, 2020 Change
(dollars in thousands)	June 30, 2021				December 31, 2020								June 30, 2020
Commercial, financial and agricultural	$	12,085,534	31.6	%	$	12,410,152	32.4	%	$	(324,618)	(3)	%	$	12,947,164	32.4	%	$	(861,630)	(7)	%
Owner-occupied	7,064,599		18.5		7,110,016		18.6		(45,417)		(1)		7,084,481		17.8		(19,882)		—
Total commercial and industrial	19,150,133		50.1		19,520,168		51.0		(370,035)		(2)		20,031,645		50.2		(881,512)		(4)
Investment properties	9,218,013		24.1		9,103,379		23.8		114,634		1		9,235,557		23.1		(17,544)		—
1-4 family properties	636,344		1.7		628,695		1.6		7,649		1		696,383		1.8		(60,039)		(9)
Land and development	506,694		1.3		593,633		1.6		(86,939)		(15)		682,230		1.7		(175,536)		(26)
Total commercial real estate	10,361,051		27.1		10,325,707		27.0		35,344		—		10,614,170		26.6		(253,119)		(2)
Consumer mortgages	5,200,762		13.6		5,513,491		14.4		(312,729)		(6)		5,817,525		14.6		(616,763)		(11)
Home equity lines	1,358,211		3.6		1,537,726		4.0		(179,515)		(12)		1,724,973		4.3		(366,762)		(21)
Credit cards	285,508		0.7		281,018		0.7		4,490		2		250,448		0.6		35,060		14
Other consumer loans	1,880,353		4.9		1,074,874		2.9		805,479		75		1,475,536		3.7		404,817		27
Total consumer	8,724,834		22.8		8,407,109		22.0		317,725		4		9,268,482		23.2		(543,648)		(6)
Loans, net of deferred fees and costs	$	38,236,018	100.0	%	$	38,252,984	100.0	%	$	(16,966)	—	%	$	39,914,297	100.0	%	$	(1,678,279)	(4)	%

At June 30, 2021, loans, net of deferred fees and costs, of $38.24 billion, decreased $17.0 million from December 31, 2020. C&I loans grew $223.3 million excluding a $593.3 million decline in PPP loans from forgiveness, CRE was relatively flat, and consumer loans increased $317.7 million, led by other consumer growth of $805.5 million, primarily from purchases of third-party lending loans. Declines in consumer mortgages and HELOCs of $312.7 million and $179.5 million, respectively, which were primarily the result of accelerated prepayment activity and excess consumer liquidity partially offset the growth in other consumer loans. We expect loan growth for 2021 to be at the low end of our initial 2%-4% guidance primarily due to the higher than expected prepayment activity that has occurred so far this year, excluding balance changes in PPP and third-party lending loans.

C&I loans remain the largest component of our loan portfolio, representing 50.1% of total loans, while CRE and consumer loans represent 27.1% and 22.8%, respectively. Our portfolio composition is established through a comprehensive concentration management policy which sets limits for C&I, CRE, and consumer loan levels as well as for sub-categories therein.

U.S. Small Business Administration Paycheck Protection Program (PPP)

Synovus is participating in the PPP, which is a loan program that originated from the CARES Act and was subsequently expanded by the Paycheck Protection Program and Health Care Enhancement Act, which was signed into law on April 24, 2020. The total balance of all PPP loans was $1.60 billion as of June 30, 2021, compared to $2.19 billion as of December 31, 2020. The table below provides additional information on PPP loans.

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	June 30, 2021
	Applications			Loan Balances
(in millions, except count data )	Approximate Count	Balance		Fundings		2Q21 Forgiveness		Total Life-to-Date Forgiveness		End of Period, Net of Unearned Fees and Costs(1)
Phase 1- 2020 Originations	19,000	$	2,958	$	2,886	$	881	$	2,132	$	641
Phase 2- 2021 Originations	11,000	1,135		1,043		46		46		959
Total	30,000	$	4,093	$	3,929	$	927	$	2,178	$	1,600

(1) Equals fundings less forgiveness, pay-downs/pay-offs, and unearned net fees.

(dollars in millions)	Total Net Fees		Percent of Fundings	2Q21 Recognized Net Fees		Total Recognized Net Fees		Total Unrecognized or Remaining Net Fees		Contractual Maturity
Phase 1- 2020 Originations	$	94.9	3.3%	$	16.0	$	86.4	$	8.5	2 years
Phase 2- 2021 Originations	43.4		4.2%	4.4		4.8		38.6		5 years
Total	$	138.3	3.5%	$	20.4	$	91.2	$	47.1

Commercial Loans

Total commercial loans (which are comprised of C&I and CRE loans) at June 30, 2021 were $29.51 billion, or 77.2%, of the total loan portfolio, compared to $29.85 billion, or 78.0%, at December 31, 2020.

At June 30, 2021, Synovus had eight commercial loan relationships with total commitments of $100 million or more (including amounts funded), with one single relationship exceeding $150 million in commitments.

Commercial and Industrial Loans

The C&I loan portfolio represents the largest category of Synovus' loan portfolio and is primarily comprised of general middle market and commercial banking clients across a wide range of industries. The following table shows the composition of the C&I loan portfolio aggregated by NAICS code. In accordance with Synovus' lending policy, each loan undergoes a detailed underwriting process which incorporates uniform underwriting standards and oversight in proportion to the size and complexity of the lending relationship. As of June 30, 2021, 86.4% (94.3% excluding PPP loans) of Synovus' C&I loans are secured by real estate, business equipment, inventory, and other types of collateral compared to 83.2% (93.8% excluding PPP loans) as of December 31, 2020. C&I loans at June 30, 2021 decreased $370.0 million, or 2%, from December 31, 2020, primarily due to $593.3 million of PPP forgiveness, offset by net growth of $223.3 million.

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Table 3 - Commercial and Industrial Loans by Industry
	June 30, 2021				December 31, 2020
(dollars in thousands)	Amount		%(1)		Amount		%(1)
Health care and social assistance	$	3,957,089	20.7	%	$	3,891,162	19.9	%
Finance and insurance	1,912,882		10.0		1,685,797		8.6
Retail trade	1,240,819		6.4		1,303,263		6.7
Accommodation and food services	1,218,549		6.4		1,205,107		6.2
Manufacturing	1,199,307		6.3		1,275,169		6.5
Wholesale trade	1,113,090		5.8		1,152,082		5.9
Real estate and rental and leasing	1,084,718		5.7		1,158,367		5.9
Professional, scientific, and technical services	1,074,789		5.6		1,133,549		5.8
Other services	1,043,353		5.4		1,123,109		5.8
Construction	1,016,169		5.3		1,036,652		5.3
Transportation and warehousing	970,631		5.1		924,275		4.7
Real estate other	688,939		3.6		686,350		3.5
Arts, entertainment, and recreation	685,461		3.6		777,905		4.0
Public Administration	430,115		2.2		435,636		2.2
Educational services	411,895		2.2		395,193		2.0
Agriculture, forestry, fishing, and hunting	325,199		1.7		383,010		2.0
Administration, support, waste management, and remediation	318,894		1.7		377,065		1.9
Information	286,725		1.5		291,425		1.5
Other industries	171,509		0.8		285,052		1.6
Total commercial and industrial loans	$	19,150,133	100.0	%	$	19,520,168	100.0	%

(1)    Loan balance in each category expressed as a percentage of total C&I loans.

At June 30, 2021, $12.09 billion of C&I loans, or 31.6% of the total loan portfolio, represented loans originated for the purpose of financing commercial, financial, and agricultural business activities. The primary source of repayment on these loans is revenue generated from products or services offered by the business or organization. The secondary source of repayment is the collateral, which consists primarily of equipment, inventory, accounts receivable, time deposits, cash surrender value of life insurance, and other business assets.

At June 30, 2021, $7.06 billion of C&I loans, or 18.5% of the total loan portfolio, represented loans originated for the purpose of financing owner-occupied properties. The financing of owner-occupied facilities is considered a C&I loan even though there is improved real estate as collateral. This treatment is a result of the credit decision process, which focuses on cash flow from operations of the business to repay the debt. The secondary source of repayment on these loans is the underlying real estate. These loans are predominately secured by owner-occupied and other real estate, and to a lesser extent, other types of collateral.

Commercial Real Estate Loans

CRE loans consist primarily of income-producing investment properties loans. Additionally, CRE loans include 1-4 family properties loans as well as land and development loans. Total CRE loans of $10.36 billion increased $35.3 million from December 31, 2020.

Investment properties loans consist of construction and mortgage loans for income-producing properties and are primarily made to finance multi-family properties, hotels, office buildings, shopping centers, warehouses and other commercial development properties. Total investment properties loans as of June 30, 2021 were $9.22 billion, or 89.0% of the CRE loan portfolio, and increased $114.6 million from December 31, 2020, with increases in other investment property and office buildings sub-categories, partially offset by a decline in multi-family loans.

1-4 Family Properties Loans

1-4 family properties loans include construction loans to home builders and commercial mortgage loans related to 1-4 family rental properties and are almost always secured by the underlying property being financed by such loans. These properties are primarily located in the markets served by Synovus. At June 30, 2021, 1-4 family properties loans totaled $636.3 million, or 6.1% of the CRE loan portfolio, and increased by $7.6 million from December 31, 2020.

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Land and Development Loans

Land and development loans include commercial and residential development as well as land acquisition loans and are secured by land held for future development, typically in excess of one year. Properties securing these loans are substantially within markets served by Synovus and loan terms generally include personal guarantees from the principals. Loans in this portfolio are underwritten based on the LTV of the collateral and the capacity of the guarantor(s). Land and development loans of $506.7 million at June 30, 2021 continued to decline $86.9 million, or 15%, from $593.6 million at December 31, 2020.

Consumer Loans

The consumer loan portfolio consists of a wide variety of loan products offered through Synovus' banking network including first and second residential mortgages, HELOCs, and credit card loans, as well as both secured and unsecured loans from third-party lending. As of June 30, 2021, weighted-average FICO scores within the residential real estate portfolio based on committed balances were 777 for consumer mortgages and 792 for HELOCs.

Consumer loans at June 30, 2021 of $8.72 billion increased $317.7 million, or 4%, compared to December 31, 2020. Consumer mortgages decreased $312.7 million, or 6%, from December 31, 2020, and HELOCs decreased $179.5 million, or 12%, from December 31, 2020. The reductions in consumer mortgages and HELOCs were primarily a result of accelerated prepayment activity and excess consumer liquidity. Credit card loans of $285.5 million at June 30, 2021 increased $4.5 million, or 2% from $281.0 million at December 31, 2020. Other consumer loans, which primarily includes third-party lending, increased $805.5 million, or 75%, from December 31, 2020. As of June 30, 2021, third-party lending balances totaled $1.45 billion, or 3.8%, of the total loan portfolio, and increased $775.8 million, or 114.4%, compared to December 31, 2020, led by purchases of $1.04 billion of third-party lending loans, partially offset by payment activity. We expect continued growth in the third-party lending portfolio in the near-term as we opportunistically deploy our balance sheet and liquidity position.

Deposits

Deposits provide the most significant funding source for interest earning assets. The following table shows the composition of period-end deposits as of the dates indicated. See Table 11 - Average Balances and Yields/Rates in this Report for information on average deposits including average rates.

Table 4 - Composition of Period-end Deposits
(dollars in thousands)	June 30, 2021		%(1)		December 31, 2020		%(1)		June 30, 2020		%(1)
Non-interest-bearing demand deposits(2)	$	14,342,601	30.4	%	$	12,382,708	26.5	%	$	11,830,675	26.8	%
Interest-bearing demand deposits(2)	5,839,814		12.4		5,674,416		12.2		5,057,234		11.4
Money market accounts(2)	13,983,112		29.7		13,541,236		29.0		11,457,223		26.0
Savings deposits(2)	1,341,453		2.8		1,156,249		2.5		1,080,119		2.4
Public funds	5,804,905		12.3		6,760,628		14.5		5,347,351		12.1
Time deposits(2)	2,891,115		6.1		3,605,928		7.7		5,131,676		11.6
Brokered deposits	2,968,962		6.3		3,570,406		7.6		4,290,302		9.7
Total deposits	$	47,171,962	100.0	%	$	46,691,571	100.0	%	$	44,194,580	100.0	%
Core deposits(3)	$	44,203,000	93.7	%	$	43,121,165	92.4	%	$	39,904,278	90.3	%
Core transaction deposits(4)	$	35,506,980	75.3	%	$	32,754,609	70.2	%	$	29,425,251	66.6	%
Time deposits greater than $100,000, including brokered and public funds	$	3,611,310	7.7	%	$	4,748,029	10.2	%	$	6,875,462	15.6	%
Brokered time deposits	$	1,063,947	2.3	%	$	1,590,096	3.4	%	$	2,442,940	5.5	%

(1)    Deposits balance in each category expressed as percentage of total deposits.

(2)    Excluding any public funds or brokered deposits.

(3)    Core deposits exclude brokered deposits.

(4)    Core transaction deposits consist of non-interest-bearing demand deposits, interest-bearing demand deposits, money market accounts, and savings deposits excluding public funds and brokered deposits.

Total period-end deposits at June 30, 2021 increased $480.4 million, or 1%, compared to December 31, 2020. Core transaction deposits increased $2.75 billion, or 8%, compared to December 31, 2020. On a year-to-date average basis, the increase in total deposits was $3.87 billion, or 9%, compared to December 31, 2020. The increases in deposit balances on both a period-end and average basis compared to December 31, 2020 are due largely to government stimulus programs including deposits associated with the second phase of PPP loans. Total deposit costs of 16 bps during the second quarter of 2021

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declined 6 bps and 12 bps, respectively, compared to the first quarter of 2021 and the fourth quarter of 2020, due to repricing and intentional, strategic remixing to reduce higher cost deposits.

Non-interest Revenue

Non-interest revenue for the second quarter of 2021 was $107.1 million, down $66.4 million, or 38%, and year-to-date was $218.0 million, down $59.3 million, or 21%, compared to the same periods in 2020. Gains on sales of investment securities of $69.4 million and $78.1 million, respectively, impacted the three and six months ended June 30, 2020. Adjusted non-interest revenue(1) for the second quarter of 2021 was $106.0 million, up $12.7 million, or 14%, from the second quarter of 2020 primarily due to higher core banking fees(2), brokerage revenue, and fiduciary and asset management fees partially offset by lower mortgage banking income. Year-to-date adjusted non-interest revenue(1) was $218.1 million, up $23.1 million, or 12%, compared to the same period in 2020 largely due to higher core banking fees(2), fiduciary and asset management fees, and brokerage revenue partially offset by lower capital markets income. In the second half of 2021, we expect diversified growth across our non-interest revenue sources to mostly offset the continued normalization of mortgage banking income.

(1)    See "Table 14 - Reconciliation of Non-GAAP Financial Measures” in this Report for applicable reconciliation to GAAP measures.

(2)    Service charges on deposit accounts, card fees, letter of credit fees, ATM fees income, line of credit non-usage fees, gains from sales of government guaranteed loans, and miscellaneous other service charges.

The following table shows the principal components of non-interest revenue.

Table 5 - Non-interest Revenue
	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2021		2020		% Change		2021		2020		% Change
Service charges on deposit accounts	$	21,414	$	15,567	38	%	$	41,448	$	36,255	14	%
Fiduciary and asset management fees	18,805		14,950		26		36,759		30,124		22
Card fees	13,304		9,186		45		25,300		20,136		26
Brokerage revenue	13,926		9,984		40		26,899		22,383		20
Mortgage banking income	13,842		23,530		(41)		36,157		35,757		1
Capital markets income	3,335		6,050		(45)		10,840		17,294		(37)
Income from bank-owned life insurance	7,188		7,756		(7)		16,031		13,794		16
Investment securities gains (losses), net	—		69,409		nm		(1,990)		78,144		nm
Other non-interest revenue	15,273		17,052		(10)		26,599		23,454		13
Total non-interest revenue	$	107,087	$	173,484	(38)	%	$	218,043	$	277,341	(21)	%

Three and Six Months Ended June 30, 2021 compared to June 30, 2020

Service charges on deposit accounts, consisting of NSF fees, account analysis fees, and all other service charges, for the three and six months ended June 30, 2021 were up $5.8 million, or 38%, and $5.2 million, or 14%, respectively, due largely to higher account analysis fees, which were up $3.2 million, or 46%, and $5.4 million, or 39%, respectively, following our pricing for value Synovus Forward initiative implemented during the first quarter of 2021. NSF fees for the six months ended June 30, 2021 and 2020 comprised 29% and 37%, respectively, of service charges on deposit accounts. All other service charges on deposit accounts, which consist primarily of monthly fees on retail demand deposits, saving accounts, and small business accounts, for the three and six months ended June 30, 2021, were up $1.0 million, or 25%, and $1.2 million, or 13%, respectively.

Fiduciary and asset management fees are derived from providing estate administration, personal trust, corporate trust, corporate bond, investment management, financial planning, and family office services. Fiduciary and asset management fees increased $3.9 million, or 26%, and $6.6 million, or 22%, for the three and six months ended June 30, 2021, respectively. The increases were driven by growth in total assets under management which increased by 28% from June 30, 2020 to $21.23 billion at June 30, 2021.

Card fees for the three and six months ended June 30, 2021 were up $4.1 million, or 45%, and $5.2 million, or 26%, respectively, with increased transaction volume in all card fee categories. Card fees consist primarily of credit card interchange fees, debit card interchange fees, and merchant discounts. Card fees are reported net of certain associated expense items including customer loyalty program expenses and network expenses.

Brokerage revenue of $13.9 million for the three months ended June 30, 2021 was up $3.9 million, or 40%, and for the six months ended June 30, 2021 was $26.9 million, up $4.5 million, or 20%. The year-over-year increase was driven by growth in

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assets under management and higher transaction revenue driven by favorable market conditions. Brokerage revenue consists primarily of brokerage commissions as well as advisory fees earned from the management of customer assets.

Mortgage banking income was significantly lower for the second quarter of 2021, with a decrease of $9.7 million compared to the three months ended June 30, 2020. The decline in mortgage banking income was driven by lower gains on sale and refinance activities. Total secondary market mortgage loan production was $422.1 million, down $213.1 million, and $995.2 million, up $105.5 million, for the three and six months ended June 30, 2021, respectively. While second quarter 2021 mortgage production levels remained elevated, we expect continued normalization in the second half of 2021.

Capital markets income primarily includes fee income from customer derivative transactions. Additionally, capital markets income includes fee income from capital raising investment banking transactions and foreign exchange as well as other miscellaneous income from capital market transactions. Capital markets income was down $2.7 million, or 45%, and $6.5 million, or 37%, for the three and six months ended June 30, 2021, respectively, as commercial client activity to lock in lower rates was elevated in 2020.

Income from BOLI, which includes increases in the cash surrender value of policies and proceeds from insurance benefits, decreased $568 thousand, or 7%, and increased $2.2 million, or 16%, for the three and six months ended June 30, 2021. The year-to-date increase was driven by proceeds from insurance benefits of $2.1 million received in the first quarter of 2021.

Investment securities losses, net, of $2.0 million for the six months ended June 30, 2021 reflected strategic sales of mortgage-backed securities. Investment securities gains, net, of $69.4 million and $78.1 million for the three and six months ended June 30, 2020, respectively, reflected strategic repositioning of the portfolio primarily during the latter part of the second quarter of 2020. The transactions were primarily focused on agency mortgage-backed securities, but also included the disposition of Synovus' remaining $155.0 million in asset-backed securities.

The main components of other non-interest revenue are fees for letters of credit and unused lines of credit, safe deposit box fees, access fees for ATM use, other service charges and loan servicing fees, income from insurance commissions, gains from sales of GGL/SBA loans, and other miscellaneous items. The six months ended June 30, 2021 included a $2.4 million increase in income related to investments in solar energy tax credit partnerships and a $2.3 million increase in insurance revenue as compared to 2020. The six months ended June 30, 2020 included $4.5 million in realized gains from the sale of positions in two publicly-traded equity investments and a sale-leaseback gain of $2.4 million.

Non-interest Expense

Non-interest expense for the second quarter of 2021 was $270.5 million, down $13.6 million, or 5%, compared to the second quarter of 2020 and adjusted non-interest expense of $268.2 million was down $6.0 million, or 2%. On a year-to-date basis, non-interest expense was down $22.8 million, or 4%, and adjusted non-interest expense was down $13.8 million, or 3%. The decline in adjusted non-interest expense during 2021 was primarily due to 2020 being impacted by higher expense associated with Synovus Forward as well as a 6% reduction in headcount year-over-year, which primarily came from back-office support functions and offset other personnel expense increases. The adjusted tangible efficiency ratio for the first six months of 2021 was 54.26%, down 306 bps compared to the same period a year ago. We remain committed to prudent expense management, enabling us to continue investing in areas that position us for greater success, deliver a superior customer experience, and promote profitable growth. See "Table 14 - Reconciliation of Non-GAAP Financial Measures” in this Report for applicable reconciliation to GAAP measures.

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The following table summarizes the components of non-interest expense.

Table 6 - Non-interest Expense
	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2021		2020		% Change		2021		2020		% Change
Salaries and other personnel expense	$	160,567	$	159,597	1	%	$	322,044	$	309,274	4	%
Net occupancy, equipment, and software expense	41,825		41,727		—		82,959		83,921		(1)
Third-party processing and other services	24,419		22,666		8		44,451		45,366		(2)
Professional fees	7,947		15,305		(48)		17,031		25,980		(34)
FDIC insurance and other regulatory fees	5,547		6,851		(19)		11,127		12,129		(8)
Earnout liability adjustments	750		4,908		nm		750		4,908		nm
Amortization of intangibles	2,379		2,640		(10)		4,758		5,280		(10)
Restructuring charges	415		2,822		nm		946		6,042		nm
Loss on early extinguishment of debt	—		—		nm		—		1,904		nm
Other operating expenses	26,682		27,625		(3)		53,599		65,617		(18)
Total non-interest expense	$	270,531	$	284,141	(5)	%	$	537,665	$	560,421	(4)	%

Three and Six Months Ended June 30, 2021 compared to June 30, 2020

Salaries and other personnel expense increased $1.0 million, or 1%, and $12.8 million, or 4%, for the three and six months ended June 30, 2021, respectively, due primarily to higher share-based compensation expense largely due to timing with a higher level of retirement eligible expense acceleration, an increase in bonus accrual due to higher than expected performance, and higher temporary help. Total headcount of 5,087 declined 160 from December 31, 2020 and 341, or 6%, from June 30, 2020 led by Synovus' voluntary early retirement program offered during the fourth quarter of 2020 and branch closures.

Net occupancy, equipment, and software expense was flat on a quarter-over-quarter basis and decreased $1.0 million, or 1%, comparatively year-to-date. The decrease for the six months ended June 30, 2021 was due primarily to a reduction of 8 branches as compared to June 30, 2020.

Third-party processing and other services include all third-party core operating system and processing charges as well as third-party loan servicing charges. Third-party processing expense increased $1.8 million, or 8%, and decreased $915 thousand, or 2%, for the three and six months ended June 30, 2021, respectively. The increase for the three months ended June 30, 2021 is primarily due to additional expenses associated with PPP loan forgiveness. The decline for the six months ended June 30, 2021 is primarily associated with Synovus' restructure of certain of its third-party consumer-based lending partnership arrangements during the second quarter of 2020 with a shift of new originations to held for sale mostly offset by expenses associated with PPP loan forgiveness.

Professional fees decreased $7.4 million, or 48%, and $8.9 million, or 34%, for the three and six months ended June 30, 2021, respectively, from decreases in consulting fees related to Synovus Forward.

FDIC insurance and other regulatory fees decreased $1.3 million, or 19%, and $1.0 million, or 8%, for the three and six months ended June 30, 2021, respectively, reflecting lower assessment rate due to higher cash balances and subordinated debt issued by Synovus Bank in the fourth quarter of 2020.

Earnout liability fair value adjustments associated with the Global One acquisition were the result of higher than projected earnings and higher earnings estimates over the remaining contractual earnout period, reflecting the continued success of the Global One enterprise. Significant adjustments are not expected as the earnout period ended on June 30, 2021.

During the three and six months ended June 30, 2021, Synovus recorded restructuring charges of $415 thousand and $946 thousand, respectively. During the three and six months ended June 30, 2020, Synovus recorded restructuring charges of $2.8 million and $6.0 million, respectively, related to branch closures and restructuring of corporate real estate as part of Synovus Forward as 9 branches were closed in 2020, and 4 branches have been closed year-to-date in 2021.

Other operating expenses includes advertising, travel, insurance, network and communication, other taxes, subscriptions and dues, other loan and ORE expense, postage and freight, training, business development, supplies, donations, and other miscellaneous expenses. Other operating expenses were down $943 thousand and $12.0 million for the three and six months ended June 30, 2021, driven by decreases in advertising expense of $802 thousand and $3.8 million, respectively. Other operating expenses for the six months ended June 30, 2020 also included a $2.7 million valuation adjustment on a MPS receivable and a $2.5 million charge from termination of customer swaps.

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Income Tax Expense

Income tax expense was $106.0 million for the six months ended June 30, 2021, representing an effective tax rate of 22.1%, compared to income tax expense of $34.5 million for the six months ended June 30, 2020, representing an effective tax rate of 20.7%. The effective tax rate for the six months ended June 30, 2021 reflected a net discrete tax benefit of $2.2 million compared to a net discrete benefit of $5.3 million in the comparable period of 2020. The net discrete benefit year-to-date in 2021 includes discrete benefits of $4.5 million related to changes in amounts taxable by jurisdictions and $2.3 million related to share-based compensation, partly offset by discrete expense of $4.6 million related to other accrual adjustments. The effective tax rate for the six months ended June 30, 2020 reflected a one-time discrete benefit of $2.7 million for the carryback of net operating loss deductions as permitted by the CARES Act, and $2.6 million of other discrete benefit items.

Synovus’ effective tax rate considers many factors including, but not limited to, the level of pre-tax income, BOLI, tax-exempt interest, certain income tax credits, and nondeductible expenses. In addition, the effective tax rate is affected by items that may occur in any given period but are not consistent from period-to-period, such as tax benefits related to share-based compensation, jurisdiction statutory tax rate changes, valuation allowance changes, and changes to unrecognized tax benefits. Accordingly, the comparability of the effective tax rate between periods may be impacted.

On May 28, 2021, the Biden Administration released its Fiscal Year 2022 Revenue Proposals, which included an increase in the federal corporate income tax rate to 28%, up from the current 21%, consistent with the details of the Biden Administration’s previously released Made in America Tax Plan. We continue to monitor the legislative process and the potential impact to the Company and its customers.

CREDIT QUALITY, CAPITAL RESOURCES AND LIQUIDITY

Credit Quality

Synovus continuously monitors the quality of its loan portfolio by industry, property type, geography, as well as credit quality metrics. At June 30, 2021, credit metrics remained stable and near historical lows with NPAs at 46 bps, NPLs at 42 bps, and total past dues at 13 bps, as a percentage of total loans. Net charge-offs remained low at $26.5 million, or 28 bps annualized, and $46.8 million, or 24 bps annualized, for the three and six months ended June 30, 2021, respectively. We expect net charge-offs to remain relatively stable in the second half of 2021, assuming no material change in economic outlook.

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The table below includes selected credit quality metrics.

Table 7 - Credit Quality Metrics
(dollars in thousands)	June 30, 2021			December 31, 2020			June 30, 2020
Non-performing loans	$	161,028		$	151,079		$	147,437
Impaired loans held for sale	—			23,590			—
ORE and other assets	16,806			17,394			30,242
Non-performing assets	$	177,834		$	192,063		$	177,679
Total loans	$	38,236,018		$	38,252,984		$	39,914,297
Non-performing loans as a % of total loans	0.42		%	0.39		%	0.37		%
Non-performing assets as a % of total loans, ORE, and specific other assets	0.46			0.50			0.44
Loans 90 days past due and still accruing	$	4,415		$	4,117		$	8,391
As a % of total loans	0.01		%	0.01		%	0.02		%
Total past due loans and still accruing	$	49,321		$	47,349		$	46,390
As a % of total loans	0.13		%	0.12		%	0.12		%
Net charge-offs, quarter	$	26,546		$	22,139		$	24,046
Net charge-offs/average loans, quarter	0.28		%	0.23		%	0.24		%
Net charge-offs, year-to-date	$	46,750		$	94,712		$	44,107
Net charge-offs/average loans, year-to-date	0.24		%	0.24		%	0.23		%
(Reversal of) provision for loan losses, quarter	$	(19,960)		$	24,075		$	119,242
(Reversal of) provision for unfunded commitments, quarter	(4,638)			(13,009)			22,609
(Reversal of) provision for credit losses, quarter	$	(24,598)		$	11,066		$	141,851
(Reversal of) provision for loan losses, year-to-date	(42,278)			336,052			268,359
(Reversal of) provision for unfunded commitments, year-to-date	(895)			18,970			32,214
(Reversal of) provision for credit losses, year-to-date	(43,173)			355,022			300,573
Allowance for loan losses	$	516,708		$	605,736		$	588,648
Reserve for unfunded commitments	46,890			47,785			61,029
Allowance for credit losses	$	563,598		$	653,521		$	649,677
ACL to loans coverage ratio	1.47		%	1.71		%	1.63		%
ALL to loans coverage ratio	1.35			1.58			1.47
ACL/NPLs	350.00			432.57			440.65
ALL/NPLs	320.88			400.94			399.25

Non-performing Assets

Total NPAs as a percentage of total loans, ORE, and specific other assets were 0.46% at June 30, 2021, compared to 0.50% at December 31, 2020. Total NPAs were $177.8 million at June 30, 2021 compared to $192.1 million at December 31, 2020.

Criticized and Classified Loans

Our loan ratings are aligned to federal banking regulators' definitions of pass and criticized categories, which include special mention, substandard, doubtful, and loss. Substandard accruing and non-accruing loans, doubtful, and loss loans are often collectively referred to as classified. Special mention, substandard, doubtful, and loss loans are often collectively referred to as criticized and classified loans. The following table presents a summary of criticized and classified loans. Criticized and classified loans at June 30, 2021 declined $261.4 million, or 14%, sequentially primarily as a result of upgrades in the hotel industry. Further reductions are expected as we progress through the rest of 2021 with improving financial performance in the hotel industry and other industries negatively impacted by COVID-19 anticipated.

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Table 8 - Criticized and Classified Loans
(dollars in thousands)	June 30, 2021			December 31, 2020
Special mention	$	906,588		$	977,028
Substandard	635,979			553,720
Doubtful	23,518			33,204
Loss	2,355			3,032
Criticized and Classified loans	$	1,568,440		$	1,566,984
As a % of total loans	4.1		%	4.1		%

Reversal of Provision for Credit Losses and Allowance for Credit Losses

Reversal of provision for credit losses of $24.6 million and $43.2 million for the three and six months ended June 30, 2021, respectively, resulted from the continued improvement in the economic forecast for pooled loans and the reduction in the individually analyzed reserve as a result of charge-offs of pre-existing reserves that were not replaced. This was partially offset by $10.6 million and $25.8 million in reserves added as a result of purchases of $434.6 million and $1.04 billion of third-party lending loans, including $304.5 million and $780.7 million in prime auto purchases for the three and six months ended June 30, 2021, respectively.

The ACL, consisting of an ALL of $516.7 million and reserve for unfunded commitments of $46.9 million, totaled $563.6 million at June 30, 2021 and declined $89.9 million from December 31, 2020, resulting in an ACL to loans coverage ratio of 1.47% and an ACL to NPLs ratio of 350%. Excluding PPP loans, the ACL to loans coverage ratio was 1.54%. The ACL at June 30, 2021 incorporates an outlook of an accelerated recovery including the unemployment rate improving to 4.5% by the end of 2021, compared to 5.7% in the first quarter of 2021 estimate.

Table 9 - Accruing TDRs by Risk Grade
	June 30, 2021				December 31, 2020				June 30, 2020
(dollars in thousands)	Amount		%		Amount		%		Amount		%
Pass	$	62,686	50.3	%	$	72,463	53.7	%	$	74,619	44.8	%
Special mention	8,600		6.9		8,935		6.6		16,228		9.8
Substandard accruing	53,242		42.8		53,574		39.7		75,614		45.4
Total accruing TDRs	$	124,528	100.0	%	$	134,972	100.0	%	$	166,461	100.0	%

Troubled Debt Restructurings

Accruing TDRs were $124.5 million at June 30, 2021, compared to $135.0 million at December 31, 2020. Non-accruing TDRs were $21.0 million at June 30, 2021, compared to $39.0 million at December 31, 2020.

Accruing TDRs are considered performing because they are performing in accordance with the restructured terms. At June 30, 2021 and December 31, 2020, approximately 97% and 99%, respectively, of accruing TDRs were current. In addition, subsequent defaults on accruing TDRs (defaults defined as the earlier of the TDR being placed on non-accrual status or reaching 90 days past due with respect to principal and/or interest payments within twelve months of the TDR designation) have continued to remain at low levels.

Non-TDR Modifications due to COVID-19

Regulatory agencies have encouraged financial institutions to work prudently with borrowers who are or may be unable to meet their contractual payment obligations because of COVID-19. In the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (initially issued on March 22, 2020 and revised on April 7, 2020), for example, the regulatory agencies expressed their view of loan modification programs as positive actions that may mitigate adverse effects on borrowers due to COVID-19 and their unwillingness to criticize institutions for working with borrowers in a safe and sound manner. Moreover, the Interagency Statement provided that eligible loan modifications related to COVID-19 may be accounted for under section 4013 of the CARES Act or in accordance with ASC 310-40. On December 27, 2020, the Consolidated Appropriations Act, 2021 extended the applicable period of Section 4013 of the CARES Act. This allows banks to elect to not consider loan modifications related to COVID-19 that are made between March 1, 2020 and the earlier of January 1, 2022, or 60 days after the national emergency ends to borrowers that are current (i.e., less than 30 days past due as of December 31, 2019) as TDRs. The regulatory agencies further stated that performing loans granted payment deferrals due to COVID-19 are not considered past due or non-accrual. FASB confirmed the foregoing regulatory agencies' view that such short-term modifications (e.g., six months) made on a good-faith basis in response

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to COVID-19 for borrowers who are current are not TDRs.

During 2020, Synovus provided relief programs consisting primarily of 90-day payment deferral relief to borrowers negatively impacted by COVID-19, and as of June 30, 2021, no loans were in a P&I deferral status as compared to 0.3% of the total loan portfolio at December 31, 2020. In addition to our P&I deferment program, under the CARES Act, we have also provided borrowers who have been impacted by COVID-19 with other modifications such as interest-only relief or amortization extensions on approximately 2% of total loans, at both June 30, 2021 and December 31, 2020.

Capital Resources

Synovus and Synovus Bank are required to comply with capital adequacy standards established by our primary federal regulator, the Federal Reserve. Synovus and Synovus Bank measure capital adequacy using the standardized approach under Basel III. At June 30, 2021, Synovus and Synovus Bank's capital levels remained strong and exceeded well-capitalized requirements currently in effect. The following table presents certain ratios used to measure Synovus and Synovus Bank's capitalization.

Table 10 - Capital Ratios
(dollars in thousands)	June 30, 2021			December 31, 2020
CET1 capital
Synovus Financial Corp.	$	4,214,720		$	4,034,865
Synovus Bank	4,822,625			4,641,711
Tier 1 risk-based capital
Synovus Financial Corp.	4,751,865			4,572,010
Synovus Bank	4,822,625			4,641,711
Total risk-based capital
Synovus Financial Corp.	5,725,176			5,604,230
Synovus Bank	5,483,427			5,361,611
CET1 capital ratio
Synovus Financial Corp.	9.75		%	9.66		%
Synovus Bank	11.17			11.11
Tier 1 risk-based capital ratio
Synovus Financial Corp.	11.00			10.95
Synovus Bank	11.17			11.11
Total risk-based capital to risk-weighted assets ratio
Synovus Financial Corp.	13.25			13.42
Synovus Bank	12.70			12.83
Leverage ratio
Synovus Financial Corp.	8.72			8.50
Synovus Bank	8.86			8.73
Tangible common equity ratio(1)
Synovus Financial Corp.	7.73			7.66

(1)    See "Table 14 - Reconciliation of Non-GAAP Financial Measures” in this Report for the applicable reconciliation to the most comparable GAAP measure.

At June 30, 2021, Synovus' CET1 ratio increased to 9.75%, well in excess of regulatory requirements including the capital conservation buffer of 2.5%. The June 30, 2021 CET1 ratio improved 9 bps compared to December 31, 2020, driven by earnings. For additional information on regulatory capital requirements, see "Part II - Item 8. Financial Statements and Supplementary Data - Note 12 - Regulatory Capital" to the consolidated financial statements of Synovus' 2020 Form 10-K. Management reviews the Company's capital position on an on-going basis and believes, based on internal capital analyses and earnings projections, that Synovus is well positioned to meet relevant regulatory capital standards.

Synovus announced on January 26, 2021 that its Board of Directors authorized share repurchases of up to $200 million in 2021. As of June 30, 2021, Synovus had repurchased $92.5 million, or 1.9 million shares of its common stock, at an average price of $47.51 per share. As of July 31, 2021, the remaining authorization under this program was $80.4 million. Based on current conditions and economic outlook, we expect to complete the full authorization in the second half of the year.

On August 26, 2020, the federal banking regulators issued a final rule (following an interim final rule issued on March 27,

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2020) that allowed electing banking organizations that adopt CECL during 2020 to mitigate the estimated effects of CECL on regulatory capital for two years, followed by a three-year phase-in transition period. Synovus adopted CECL on January 1, 2020 and the June 30, 2021 regulatory capital ratios reflect Synovus' election of the five-year transition provision. At June 30, 2021, $74.9 million, or a cumulative 17 bps benefit to CET1, was deferred.

Dividends

Synovus has historically paid a quarterly cash dividend to the holders of its common stock. Management and the Board of Directors closely monitor current and projected capital levels, liquidity (including dividends from subsidiaries), financial markets and other economic trends, as well as regulatory requirements regarding the payment of dividends.

Synovus' ability to pay dividends on its common stock and preferred stock is primarily dependent upon dividends and distributions that it receives from its bank and non-banking subsidiaries, which are restricted by various regulations administered by federal and state bank regulatory authorities.

Synovus declared common stock dividends of $97.7 million, or $0.66 per common share, for the six months ended June 30, 2021, compared to $97.2 million, or $0.66 per common share, for the six months ended June 30, 2020. In addition, Synovus declared dividends on its preferred stock of $16.6 million during both six month periods ended June 30, 2021 and 2020.

Liquidity

Liquidity represents the extent to which Synovus has readily available sources of funding to meet the needs of depositors, borrowers and creditors, to support asset growth, and to otherwise sustain operations of Synovus and its subsidiaries, at a reasonable cost, on a timely basis, and without adverse consequences. ALCO monitors Synovus' economic, competitive, and regulatory environment and is responsible for measuring, monitoring, and reporting on liquidity and funding risk as well as market risk.

In accordance with Synovus policies and regulatory guidance, ALCO evaluates contractual and anticipated cash flows under normal and stressed conditions to properly manage the Company’s liquidity profile. Synovus places an emphasis on maintaining numerous sources of current and contingent liquidity to meet its obligations to depositors, borrowers, and creditors on a timely basis. Liquidity is generated through various sources, including, but not limited to, maturities and repayments of loans by customers, maturities and sales of investment securities, and growth in core or wholesale deposits. Management continuously monitors and maintains appropriate levels of liquidity so as to provide adequate funding sources to manage customer deposit withdrawals, loan requests, and other funding demands.

Synovus Bank also generates liquidity through the issuance of brokered certificates of deposit and money market accounts. Synovus Bank accesses these funds from a broad geographic base to diversify its sources of funding and liquidity. Synovus Bank also has the capacity to access funding through its membership in the FHLB system and through the Federal Reserve discount window. At June 30, 2021, based on currently pledged collateral, Synovus Bank had access to incremental FHLB funding of $6.53 billion, subject to FHLB credit policies.

In addition to bank level liquidity management, Synovus must manage liquidity at the parent company level for various operating needs including the servicing of debt, the payment of dividends on our common stock and preferred stock, share repurchases, payment of general corporate expenses and potential capital infusions into subsidiaries. The primary source of liquidity for Synovus consists of dividends from Synovus Bank, which is governed by certain rules and regulations of the GA DBF and the Federal Reserve Bank. Synovus' ability to receive dividends from Synovus Bank in future periods will depend on a number of factors, including, without limitation, Synovus Bank's future profits, asset quality, liquidity, and overall condition. In addition, both the GA DBF and Federal Reserve Bank may require approval to pay dividends, based on certain regulatory statutes and limitations.

Synovus presently believes that the sources of liquidity discussed above, including existing liquid funds on hand, are sufficient to meet its anticipated funding needs. However, if economic conditions were to significantly deteriorate, regulatory capital requirements for Synovus or Synovus Bank were to increase as the result of regulatory directives or otherwise, or Synovus believes it is prudent to enhance current liquidity levels, then Synovus may seek additional liquidity from external sources. See "Part I – Item 1A. Risk Factors - Changes in the cost and availability of funding due to changes in the deposit market and credit market may adversely affect our capital resources, liquidity and financial results" of Synovus' 2020 Form 10-K. Furthermore, Synovus may, from time to time, take advantage of attractive market opportunities to refinance its existing debt, redeem its preferred stock, or strengthen its liquidity or capital position.

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Earning Assets and Sources of Funds

Average total assets for the six months ended June 30, 2021 increased $3.83 billion, or 8%, to $54.61 billion as compared to $50.78 billion for the first six months of 2020. Average earning assets increased $3.71 billion, or 8%, in the first six months of 2021 compared to the same period in 2020. The increase in average earning assets primarily resulted from a $2.16 billion, or 33%, increase in average investment securities available for sale, a $1.60 billion, or 153%, increase in average interest-bearing funds held at the Federal Reserve Bank, and a $719.4 million increase in loans held for sale, partially offset by a $509.4 million decrease in average total loans, net of unearned.

Average interest-bearing liabilities decreased $286.9 million, or 1%, to $33.87 billion for the first six months of 2021 compared to the same period in 2020. The decrease in average interest-bearing liabilities resulted from a $3.55 billion, or 40%, decrease in average time deposits, a $1.55 billion, or 56%, decrease in average long-term debt, and a $967.2 million decrease in other short-term borrowings. These decreases were mostly offset by a $3.76 billion, or 28%, increase in average money market deposits and a $1.73 billion, or 25%, increase in average interest-bearing demand deposits. Average non-interest-bearing deposits increased $3.78 billion, or 35%, to $14.44 billion for the first six months of 2021 compared to the same period in 2020, due largely to liquidity associated with various government stimulus efforts.

Net interest income for the six months ended June 30, 2021 was $755.7 million, up $5.9 million compared to the same period in 2020, including $45.2 million in PPP fees during 2021 and $9.2 million in 2020. Net interest margin was down 22 bps over the comparable six-month period to 3.03%, due primarily to the decline in market interest rates and average growth in investment securities available for sale and interest-bearing funds held at the Federal Reserve Bank. For the six months ended June 30, 2021, the yield on earning assets was 3.29%, a decrease of 74 bps compared to the six months ended June 30, 2020, while the effective cost of funds decreased 52 bps to 0.26%. The yield on loans decreased 37 bps to 3.97%, due primarily to the decline in market interest rates, while the yield on investment securities decreased 149 bps to 1.42%, due primarily to an acceleration in prepayments and increase in premium amortization, compared to the six months ended June 30, 2020.

On a sequential quarter basis, net interest income was up $8.0 million, or 2%, primarily due to continued asset growth, further declines in deposit costs, and a higher day count. Net interest margin for the second quarter was 3.02%, which was down 2 bps compared to the first quarter of 2021 and impacted by lower PPP fees. The second quarter of 2021 included $20.4 million recognized for associated PPP fees versus $24.9 million in the first quarter of 2021 and average PPP loan balances of $2.14 billion versus $2.24 billion in the first quarter of 2021. For the second quarter of 2021, the yield on earning assets decreased 6 bps, while the effective cost of funds decreased 4 bps compared to the first quarter of 2021.

Based on current market conditions and our expectations for loan growth, we expect that quarterly net interest income excluding PPP fees will increase in the second half of the year, driven by loan growth, deployment of liquidity, a deceleration of prepayments, and further deposit cost reductions.

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Quarterly yields earned on average interest-earning assets and rates paid on average interest-bearing liabilities for the five most recent quarters are presented below.

Table 11 - Average Balances and Yields/Rates	2021				2020
(dollars in thousands) (yields and rates annualized)	Second Quarter			First Quarter	Fourth Quarter	Third Quarter	Second Quarter
Interest Earning Assets:
Investment securities(1)(2)	$	9,184,691		8,437,563	7,493,822	7,227,400	6,618,533
Yield	1.45		%	1.40	2.07	2.39	2.72
Trading account assets(3)	$	2,831		3,063	8,496	5,391	6,173
Yield	1.15		%	2.81	1.03	1.69	2.19
Commercial loans(2)(4)	$	29,849,029		29,844,491	30,363,102	30,730,135	30,236,919
Yield	3.86		%	3.95	3.96	3.80	3.95
Consumer loans(4)	$	8,647,448		8,367,776	8,521,449	9,032,437	9,899,172
Yield	3.94		%	3.98	4.00	4.08	4.34
Allowance for loan losses	$	(561,242)		(599,872)	(595,547)	(591,098)	(498,545)
Loans, net(4)	$	37,935,235		37,612,395	38,289,004	39,171,474	39,637,546
Yield	3.93		%	4.02	4.03	3.92	4.08
Mortgage loans held for sale	$	242,940		246,962	309,278	244,952	221,157
Yield	3.06		%	2.68	2.74	2.92	3.09
Other loans held for sale	$	615,301		660,753	544,301	493,940	19,246
Yield	3.05		%	2.91	2.81	3.61	4.19
Other earning assets(5)	$	2,705,819		2,838,063	2,716,645	1,265,880	1,709,086
Yield	0.11		%	0.10	0.10	0.11	0.11
Federal Home Loan Bank and Federal Reserve Bank Stock(3)	$	159,340		157,657	162,537	200,923	247,801
Yield	2.01		%	1.69	2.64	2.73	3.60
Total interest earning assets	$	50,846,157		49,956,456	49,524,083	48,609,960	48,459,542
Yield	3.26		%	3.32	3.49	3.58	3.75
Interest-Bearing Liabilities:
Interest-bearing demand deposits	$	8,601,262		8,570,753	8,531,415	7,789,095	7,260,940
Rate	0.11		%	0.14	0.16	0.19	0.21
Money market accounts, excluding brokered deposits	$	15,476,262		15,348,916	14,411,860	13,272,972	12,238,479
Rate	0.19		%	0.23	0.26	0.36	0.46
Savings deposits	$	1,333,297		1,219,288	1,147,667	1,114,956	1,036,024
Rate	0.02		%	0.02	0.01	0.02	0.02
Time deposits under $100,000	$	1,077,931		1,161,306	1,239,592	1,379,923	1,621,943
Rate	0.41		%	0.56	0.74	1.03	1.43
Time deposits over $100,000	$	2,714,451		2,993,996	3,302,959	3,863,821	4,772,555
Rate	0.56		%	0.74	1.03	1.44	1.80
Other brokered deposits	$	1,901,097		1,950,582	1,978,393	1,912,114	1,998,571
Rate	0.19		%	0.20	0.23	0.23	0.25
Brokered time deposits	$	1,156,510		1,418,751	1,795,982	2,232,940	2,244,429
Rate	1.35		%	1.50	1.60	1.59	1.86
Total interest-bearing deposits	$	32,260,810		32,663,592	32,407,868	31,565,821	31,172,941
Rate	0.24		%	0.31	0.39	0.54	0.73
Federal funds purchased and securities sold under repurchase agreements	$	204,053		209,448	174,316	180,342	250,232
Rate	0.07		%	0.07	0.07	0.09	0.12
Other short-term borrowings	$	—		—	—	46,739	550,000
Rate	—		%	—	—	1.12	1.23
Long-term debt	$	1,203,038		1,202,613	1,552,791	2,234,665	2,834,188
Rate	3.82		%	3.63	3.96	2.71	2.36
Total interest-bearing liabilities	$	33,667,901		34,075,653	34,134,975	34,027,567	34,807,361
Rate	0.36		%	0.42	0.55	0.68	0.86
Non-interest-bearing demand deposits	$	15,088,836		13,791,286	13,566,112	12,773,676	11,923,534
Cost of funds	0.25		%	0.30	0.40	0.50	0.65
Effective cost of funds(6)	0.24		%	0.28	0.37	0.48	0.62
Net interest margin	3.02		%	3.04	3.12	3.10	3.13
Taxable equivalent adjustment(2)	$	791		774	821	956	861

`(1)    Excludes net unrealized gains (losses).

(2)    Reflects taxable-equivalent adjustments, using the statutory federal income tax rate of 21%, in adjusting interest on tax-exempt loans and investment securities to a taxable-equivalent basis.

(3)    Included as a component of other assets on the consolidated balance sheets.

(4)    Average loans are shown net of deferred fees and costs. NPLs are included.

(5)    Includes interest-bearing funds with Federal Reserve Bank, interest earning deposits with banks, and federal funds sold and securities purchased under resale agreements.

(6)    Includes the impact of non-interest-bearing capital funding sources.

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Net Interest Income and Rate/Volume Analysis

    The following table sets forth the major components of net interest income and the related annualized yields and rates for the six months ended June 30, 2021 and 2020, as well as the variances between the periods caused by changes in interest rates versus changes in volume.

Table 12 - Net Interest Income and Rate/Volume Analysis
	Six Months Ended June 30,												2021 Compared to 2020
	Average Balances				Interest				Annualized Yield/Rate				Change due to				Increase (Decrease)
(dollars in thousands)	2021		2020		2021		2020		2021		2020		Volume		Rate
Assets
Interest earning assets:
Investment securities	$	8,813,191	$	6,649,290	$	62,755	$	96,593	1.42	%	2.91	%	$	31,226	$	(65,064)	$	(33,838)
Trading account assets	2,947		6,240		30		76		2.01		2.45		(40)		(6)		(46)
Taxable loans, net(1)	37,853,309		38,396,237		737,891		823,156		3.94		4.31		(11,604)		(73,661)		(85,265)
Tax-exempt loans, net(1)(2)	501,848		468,330		7,452		7,820		2.99		3.36		558		(926)		(368)
Allowance for loan losses	(580,450)		(433,289)
Loans, net	37,774,707		38,431,278		745,343		830,976		3.97		4.34		(11,046)		(74,587)		(85,633)
Mortgage loans held for sale	244,940		153,786		3,516		2,502		2.87		3.25		1,469		(455)		1,014
Other loans held for sale	637,901		9,623		9,555		204		2.98		4.19		13,054		(3,703)		9,351
Other earning assets(3)	2,771,576		1,180,608		1,458		2,133		0.10		0.36		2,761		(3,436)		(675)
Federal Home Loan Bank and Federal Reserve Bank stock	158,503		265,942		1,468		4,629		1.85		3.48		(1,854)		(1,307)		(3,161)
Total interest earning assets	50,403,765		46,696,767		824,125		937,113		3.29		4.03		35,570		(148,558)		(112,988)
Cash and due from banks	545,295		536,180
Premises and equipment, net	456,537		489,246
Other real estate	1,613		13,523
Cash surrender value of bank-owned life insurance	1,053,603		963,428
Other assets(4)	2,144,615		2,075,995
Total assets	$	54,605,428	$	50,775,139
Liabilities and Shareholders' Equity
Interest-bearing liabilities:
Interest-bearing demand deposits	$	8,586,092	$	6,853,463	$	5,414	$	11,871	0.13	%	0.35	%	$	3,007	$	(9,464)	$	(6,457)
Money market accounts	17,338,644		13,580,867		17,788		48,832		0.21		0.72		13,417		(44,461)		(31,044)
Savings deposits	1,276,608		981,423		105		161		0.02		0.03		44		(100)		(56)
Time deposits	5,259,745		8,809,434		21,082		81,612		0.81		1.86		(32,741)		(27,789)		(60,530)
Federal funds purchased and securities sold under repurchase agreements	206,735		208,778		69		201		0.07		0.19		(2)		(130)		(132)
Other short-term borrowings	—		967,181		—		7,509		—		1.54		(7,386)		(123)		(7,509)
Long-term debt	1,202,827		2,756,419		22,386		35,454		3.73		2.52		(19,415)		6,347		(13,068)
Total interest-bearing liabilities	33,870,651		34,157,565		66,844		185,640		0.39		1.08		(43,076)		(75,720)		(118,796)
Non-interest-bearing deposits	14,443,645		10,666,654
Other liabilities	1,138,073		918,009
Shareholders' equity	5,153,059		5,032,911
Total liabilities and equity	$	54,605,428	$	50,775,139
Interest rate spread:									2.90	%	2.95	%
Net interest income - FTE/margin(5)					$	757,281	$	751,473	3.03	%	3.25	%	$	78,646	$	(72,838)	$	5,808
Taxable equivalent adjustment					1,565		1,647
Net interest income, actual					$	755,716	$	749,826

(1)     Average loans are shown net of unearned income. NPLs are included. Interest income includes fees as follows: 2021 - $60.4 million, 2020 - $24.4 million.

(2)    Reflects taxable-equivalent adjustments, using the statutory federal income tax rate of 21%, in adjusting interest on tax-exempt loans to a taxable-equivalent basis.

(3)    Includes interest-bearing funds with Federal Reserve Bank, interest earning deposits with banks, and federal funds sold and securities purchased under resale agreements.

(4)    Includes average net unrealized gains (losses) on investment securities available for sale of $76.3 million and $218.7 million for the six months ended June 30, 2021 and 2020, respectively.

(5)    The net interest margin is calculated by dividing annualized net interest income - FTE by average total interest earnings assets.

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Market Risk Analysis

Interest rate risk is the primary market risk to which Synovus is potentially exposed. Synovus measures its sensitivity to changes in market interest rates through the use of a simulation model which incorporates all of Synovus’ earning assets and liabilities. These simulations are used to determine a baseline net interest income projection and the sensitivity of the income profile based on changes in interest rates. These simulations incorporate assumptions and factors, including, but not limited to, changes in market rates, in the size or composition of the balance sheet, and in repricing characteristics as well as customer behaviors. This process is reviewed and updated on an on-going basis in a manner consistent with Synovus’ ALCO governance framework.

Synovus has modeled its baseline net interest income projection assuming a flat interest rate environment with the federal funds rate at the Federal Reserve’s current targeted range of 0% to 0.25% and the current prime rate of 3.25%. Synovus has modeled the impact of a gradual increase in market interest rates across the yield curve of 100 and 200 bps and a gradual decline of 25 bps to determine the sensitivity of net interest income for the next twelve months. The lesser decline of the downrate scenario presented was selected in light of the low absolute level of monetary policy rates and generally incorporates an assumption that rates are floored at the zero-lower-bound. Synovus' current rate risk position is considered asset-sensitive and would be expected to benefit net interest income in a rising interest rate environment and reduce net interest income in a declining interest rate environment. A modest decline in sensitivity relative to the prior period-end is the result of a host of factors, including increased securities portfolio and the higher absolute level of long-term interest rates. The following table represents the estimated sensitivity of net interest income at June 30, 2021, with comparable information for December 31, 2020.

Table 13 - Twelve Month Net Interest Income Sensitivity
	Estimated % Change in Net Interest Income as Compared to Unchanged Rates (for the next twelve months)
Change in Short-term Interest Rates (in bps)	June 30, 2021	December 31, 2020
+200	6.3%	6.8%
+100	3.2%	3.5%
-25	(0.5)%	(0.5)%

The net interest income simulation model is the primary tool utilized to evaluate potential interest rate risks over a shorter-term time horizon. Synovus also evaluates potential longer-term interest rate risk through modeling and evaluation of the sensitivity of the Company's Economic Value of Equity (EVE). The EVE measurement process estimates the net fair value of assets, liabilities, and off-balance sheet financial instruments under various interest rate scenarios. Management uses EVE sensitivity analyses as an additional means of measuring interest rate risk and incorporates this form of analysis within its governance and limits framework.

LIBOR Transition

In July 2017, the FCA, which regulates LIBOR, announced that it intends to stop persuading or compelling banks to submit rates for the calculation of LIBOR at the end of 2021. On March 5, 2021, the FCA confirmed that all LIBOR settings will either cease to be provided by any administrator or no longer be representative immediately after December 31, 2021 for the 1-week and 2-month US dollar settings and immediately after June 30, 2023 for all remaining US dollar settings.

The ARRC has proposed SOFR as its preferred rate as an alternative to LIBOR and has proposed a paced market transition plan to SOFR from LIBOR. Organizations are currently working on industry-wide and company-specific transition plans related to derivatives and cash markets exposed to LIBOR. As noted within "Part I - Item 1A. Risk Factors" of Synovus' 2020 Form 10-K, Synovus holds instruments that may be impacted by the discontinuance of LIBOR, which include floating rate obligations, loans, deposits, derivatives and hedges, and other financial instruments. Synovus has established a cross-functional LIBOR transition working group with representation from all business lines, support and control functions, and legal counsel that has 1) assessed the Company's current exposure to LIBOR indexed instruments and the data, systems and processes that will be impacted; 2) established a detailed implementation plan; 3) formulated communications and learning activities to support customers and colleagues; and 4) developed a formal governance structure for the transition. Loan agreement provisions for new and renewed loans include LIBOR fallback language to ensure transition from LIBOR to the new benchmark when such transition occurs. All direct exposures resulting from existing financial contracts that mature after 2021 have been inventoried and are monitored on an ongoing basis. Based on regulatory guidance, the Company currently expects to cease originating loans indexed to LIBOR no later than December 31, 2021. Synovus is expanding its product offerings, and there are currently several viable alternative reference rates being evaluated for use as potential replacements of LIBOR. We do

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not currently expect there to be a material financial impact to the Company or our customers regardless of which index or indices the Company selects to offer as alternatives to LIBOR.

Critical Accounting Policies

The accounting and financial reporting policies of Synovus are in accordance with GAAP and conform to the accounting and reporting guidelines prescribed by bank regulatory authorities. Synovus has identified certain of its accounting policies as “critical accounting policies,” consisting of those related to the allowance for credit losses and income taxes. In determining which accounting policies are critical in nature, Synovus has identified the policies that require significant judgment or involve complex estimates. It is management's practice to discuss critical accounting policies with the Board of Directors' Audit Committee on a periodic basis, including the development, selection, implementation and disclosure of the critical accounting policies. The application of these policies has a significant impact on Synovus’ unaudited interim consolidated financial statements. Synovus’ financial results could differ significantly if different judgments or estimates are used in the application of these policies. All accounting policies described in "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" in Synovus' 2020 Form 10-K should be reviewed for a greater understanding of how we record and report our financial performance. There have been no significant changes to the accounting policies, estimates and assumptions, or the judgments affecting the application of these estimates and assumptions from those disclosed in Synovus' 2020 Form 10-K other than the exclusion of goodwill impairment as a critical accounting estimate due to lack of impairment indicators.

Non-GAAP Financial Measures

The measures entitled adjusted non-interest revenue; adjusted non-interest expense; adjusted total revenue; adjusted tangible efficiency ratio; adjusted net income per common share, diluted; adjusted return on average assets; adjusted return on average common equity; adjusted return on average tangible common equity; and tangible common equity ratio are not measures recognized under GAAP and therefore are considered non-GAAP financial measures. The most comparable GAAP measures to these measures are total non-interest revenue; total non-interest expense; total FTE revenue; efficiency ratio-FTE; net income per common share, diluted; return on average assets; return on average common equity; and the ratio of total shareholders' equity to total assets, respectively.

Management believes that these non-GAAP financial measures provide meaningful additional information about Synovus to assist management and investors in evaluating Synovus’ operating results, financial strength, the performance of its business, and the strength of its capital position. However, these non-GAAP financial measures have inherent limitations as analytical tools and should not be considered in isolation or as a substitute for analyses of operating results or capital position as reported under GAAP. The non-GAAP financial measures should be considered as additional views of the way our financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies. Adjusted total revenue and adjusted non-interest revenue are measures used by management to evaluate total FTE revenue and non-interest revenue exclusive of net investment securities gains (losses), changes in fair value of private equity investments, net, and fair value adjustment on non-qualified deferred compensation. Adjusted non-interest expense and the adjusted tangible efficiency ratio are measures utilized by management to measure the success of expense management initiatives focused on reducing recurring controllable operating costs. Adjusted net income per common share, diluted, adjusted return on average assets, and adjusted return on average common equity are measurements used by management to evaluate operating results exclusive of items that management believes are not indicative of ongoing operations and impact period-to-period comparisons. Adjusted return on average tangible common equity is a measure used by management to compare Synovus' performance with other financial institutions because it calculates the return available to common shareholders without the impact of intangible assets and their related amortization, thereby allowing management to evaluate the performance of the business consistently. The tangible common equity ratio is used by management to assess the strength of our capital position. The computations of these measures are set forth in the tables below.

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Table 14 - Reconciliation of Non-GAAP Financial Measures
	Three Months Ended				Six Months Ended
(in thousands)	June 30, 2021		June 30, 2020		June 30, 2021		June 30, 2020
Adjusted non-interest revenue
Total non-interest revenue	$	107,087	$	173,484	$	218,043	$	277,341
Subtract/add: Investment securities (gains) losses, net	—		(69,409)		1,990		(78,144)
Subtract: Gain on sale and increase in fair value of private equity investments, net	—		(8,707)		—		(4,452)
Subtract/add: Fair value adjustment on non-qualified deferred compensation	(1,126)		(2,136)		(1,918)		257
Adjusted non-interest revenue	$	105,961	$	93,232	$	218,115	$	195,002
Adjusted non-interest expense
Total non-interest expense	$	270,531	$	284,141	$	537,665	$	560,421
Subtract: Earnout liability adjustments	(750)		(4,908)		(750)		(4,908)
Subtract: Restructuring charges	(415)		(2,822)		(946)		(6,042)
Subtract: Loss on early extinguishment of debt	—		—		—		(1,904)
Subtract/add: Fair value adjustment on non-qualified deferred compensation	(1,126)		(2,136)		(1,918)		257
Adjusted non-interest expense	$	268,240	$	274,275	$	534,051	$	547,824

58

	Three Months Ended						Six Months Ended
(in thousands, except per share data)	June 30, 2021			June 30, 2020			June 30, 2021			June 30, 2020
Adjusted total revenue and adjusted tangible efficiency ratio
Adjusted non-interest expense	$	268,240		$	274,275		$	534,051		$	547,824
Subtract: Amortization of intangibles	(2,379)			(2,640)			(4,758)			(5,280)
Adjusted tangible non-interest expense	$	265,861		$	271,635		$	529,293		$	542,544
Net interest income	$	381,860		$	376,566		$	755,716		$	749,826
Add: Tax equivalent adjustment	791			861			1,565			1,647
Add: Total non-interest revenue	107,087			173,484			218,043			277,341
Total FTE revenue	$	489,738		$	550,911		$	975,324		$	1,028,814
Subtract/add: Investment securities (gains) losses, net	—			(69,409)			1,990			(78,144)
Subtract: Gain on sale and increase in fair value of private equity investments, net	—			(8,707)			—			(4,452)
Subtract/add: Fair value adjustment on non-qualified deferred compensation	(1,126)			(2,136)			(1,918)			257
Adjusted total revenue	$	488,612		$	470,659		$	975,396		$	946,475
Efficiency ratio-FTE	55.24		%	51.58		%	55.13		%	54.47		%
Adjusted tangible efficiency ratio	54.41			57.71			54.26			57.32
Adjusted net income per common share, diluted
Net income available to common shareholders	$	177,909		$	84,901		$	356,711		$	115,131
Add: Earnout liability adjustments	750			4,908			750			4,908
Add: Restructuring charges	415			2,822			946			6,042
Add: Loss on early extinguishment of debt	—			—			—			1,904
Subtract/add: Investment securities (gains) losses, net	—			(69,409)			1,990			(78,144)
Subtract: Gain on sale and increase in fair value of private equity investments, net	—			(8,707)			—			(4,452)
Subtract/add: Tax effect of adjustments (1)	(105)			19,500			(743)			19,335
Adjusted net income available to common shareholders	$	178,969		$	34,015		$	359,654		$	64,724
Weighted average common shares outstanding, diluted	149,747			147,733			149,764			148,067
Adjusted net income per common share, diluted	$	1.20		$	0.23		$	2.40		$	0.44

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Table 14 - Reconciliation of Non-GAAP Financial Measures, continued
	Three Months Ended						Six Months Ended
(dollars in thousands)	June 30, 2021			June 30, 2020			June 30, 2021			June 30, 2020
Adjusted return on average assets (annualized)
Net income	$	186,200		$	93,192		$	373,292		$	131,712
Add: Earnout liability adjustments	750			4,908			750			4,908
Add: Restructuring charges	415			2,822			946			6,042
Add: Loss on early extinguishment of debt	—			—			—			1,904
Subtract/add: Investment securities (gains) losses, net	—			(69,409)			1,990			(78,144)
Subtract: Gain on sale and increase in fair value of private equity investments, net	—			(8,707)			—			(4,452)
Subtract/add: Tax effect of adjustments (1)	(105)			19,500			(743)			19,335
Adjusted net income	$	187,260		$	42,306		$	376,235		$	81,305
Net income annualized	746,846			374,816			752,771			264,871
Adjusted net income annualized	751,098			170,154			758,706			163,503
Total average assets	55,017,771			52,853,685			54,605,428			50,775,139
Return on average assets (annualized)	1.36		%	0.71		%	1.38		%	0.52		%
Adjusted return on average assets (annualized)	1.37			0.32			1.39			0.32

	Three Months Ended
(dollars in thousands)	June 30, 2021			March 31, 2021			June 30, 2020
Adjusted return on average common equity and adjusted return on average tangible common equity (annualized)
Net income available to common shareholders	$	177,909		$	178,802		$	84,901
Add: Earnout liability adjustments	750			—			4,908
Add: Restructuring charges	415			531			2,822
Add/subtract: Investment securities losses (gains), net	—			1,990			(69,409)
Subtract: Gain on sale and increase in fair value of private equity investments	—			—			(8,707)
Subtract/add: Tax effect of adjustments (1)	(105)			(638)			19,500
Adjusted net income available to common shareholders	$	178,969		$	180,685		$	34,015
Adjusted net income available to common shareholders' annualized	$	717,843		$	732,778		$	136,808
Add: Amortization of intangibles, annualized net of tax	7,128			7,207			7,868
Adjusted net income available to common shareholders excluding amortization of intangibles annualized	$	724,971		$	739,985		$	144,676
Net income available to common shareholders annualized	$	713,591		$	725,141		$	341,470
Total average shareholders' equity less preferred stock	$	4,632,568		$	4,599,076		$	4,567,254
Subtract: Goodwill	(452,390)			(452,390)			(497,267)
Subtract: Other intangible assets, net	(41,399)			(44,005)			(51,667)
Total average tangible shareholders' equity less preferred stock	$	4,138,779		$	4,102,681		$	4,018,320
Return on average common equity (annualized)	15.40		%	15.77		%	7.48		%
Adjusted return on average common equity (annualized)	15.50			15.93			3.00
Adjusted return on average tangible common equity (annualized)	17.52			18.04			3.60

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Table 14 - Reconciliation of Non-GAAP Financial Measures, continued
(dollars in thousands)	June 30, 2021			March 31, 2021			December 31, 2020			June 30, 2020
Tangible common equity ratio
Total assets	$	54,938,659		$	55,159,011		$	54,394,159		$	54,121,989
Subtract: Goodwill	(452,390)			(452,390)			(452,390)			(497,267)
Subtract: Other intangible assets, net	(40,354)			(42,733)			(45,112)			(50,392)
Tangible assets	$	54,445,915		$	54,663,888		$	53,896,657		$	53,574,330
Total shareholders' equity	$	5,237,714		$	5,161,717		$	5,161,334		$	5,052,968
Subtract: Goodwill	(452,390)			(452,390)			(452,390)			(497,267)
Subtract: Other intangible assets, net	(40,354)			(42,733)			(45,112)			(50,392)
Subtract: Preferred stock, no par value	(537,145)			(537,145)			(537,145)			(537,145)
Tangible common equity	$	4,207,825		$	4,129,449		$	4,126,687		$	3,968,164
Total shareholders' equity to total assets ratio	9.53		%	9.36		%	9.49		%	9.34		%
Tangible common equity ratio	7.73			7.55			7.66			7.41
(1) An assumed marginal tax rate of 25.3% for 2021 and 25.9% for 2020 was applied.

ITEM 3. – QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

    The information presented in the Market Risk Analysis section of the Management's Discussion and Analysis of Financial Condition and Results of Operations section of this Report is incorporated herein by reference.

ITEM 4. – CONTROLS AND PROCEDURES

In connection with the preparation of this Quarterly Report on Form 10-Q, an evaluation was carried out by Synovus' management, with the participation of Synovus' Chief Executive Officer and Chief Financial Officer, of the effectiveness of Synovus' disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Disclosure controls and procedures are designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosures. Based on that evaluation, Synovus' Chief Executive Officer and Chief Financial Officer have concluded that, as of June 30, 2021, Synovus' disclosure controls and procedures were effective.

There have been no material changes in Synovus' internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the quarter ended June 30, 2021 that have materially affected, or are reasonably likely to materially affect, Synovus' internal control over financial reporting.

61

PART II. – OTHER INFORMATION

ITEM 1. – LEGAL PROCEEDINGS

See "Part I - Item 1. Financial Statements and Supplementary Data - Note 9 - Commitments and Contingencies" of this Report.

ITEM 1A. – RISK FACTORS

In addition to the other information set forth in this Report, you should carefully consider the factors discussed in "Part I - Item IA - Risk Factors” of Synovus' 2020 Form 10-K which could materially affect its business, financial position, results of operations, cash flows, or future results. Please be aware that these risks may change over time and other risks may prove to be important in the future. New risks may emerge at any time, and we cannot predict such risks or estimate the extent to which they may affect our business, financial condition or results of operations, or the trading price of our securities.

There are no material changes during the period covered by this Report to the risk factors previously disclosed in Synovus' 2020 Form 10-K.

ITEM 2. – UNREGISTERED SALES OF SECURITIES AND USE OF PROCEEDS

    (a) None.

    (b) None.

    (c) Issuer Purchases of Equity Securities:

The Company announced on January 26, 2021 that its Board of Directors authorized share repurchases of up to $200 million in 2021. As of July 31, 2021, the remaining authorization under this program was $80.4 million.

Share Repurchases
(in thousands, except per share data)	Total Number of Shares Repurchased	Average Price Paid per Share(1)		Total Number of Shares Repurchased as Part of Publicly Announced Plans or Programs	Maximum Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
April 2021	315	$	45.92	315	$	185,545
May 2021	850	47.98		850	144,734
June 2021	781	47.65		781	107,532
Total	1,946	$	47.51	1,946

(1)    The average price paid per share is calculated on a trade date basis for all open market transactions and excludes commissions and other transaction expenses.

The foregoing repurchases during the second quarter of 2021 were purchased through open market transactions, including under plans complying with Rule 10b5-1 under the Exchange Act.

ITEM 3. – DEFAULTS UPON SENIOR SECURITIES

    None.

ITEM 4. – MINE SAFETY DISCLOSURES

    None.

ITEM 5. – OTHER INFORMATION

    None.

62

ITEM 6. – EXHIBITS  

Exhibit Number	Description
3.1	Restated Articles of Incorporation of Synovus, incorporated by reference to Exhibit 3.1 of Synovus’ Current Report on Form 8-K dated April 22, 2020, as filed with the SEC on April 24, 2020.
3.2	Restated Bylaws of Synovus, incorporated by reference to Exhibit 3.2 of Synovus' Current Report on Form 8-K dated April 22, 2020, as filed with the SEC on April 24, 2020.
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive Data File
104	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101).

63

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.

 

	SYNOVUS FINANCIAL CORP.
August 4, 2021	By:	/s/ Andrew J. Gregory, Jr.
Date		Andrew J. Gregory, Jr.
		Executive Vice President and Chief Financial Officer
		(Duly Authorized Officer and Principal Financial Officer)

64

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Kevin S. Blair, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Synovus Financial Corp.;

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 Synovus’ supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to Synovus 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 Synovus’ 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 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 Synovus’ 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:	August 4, 2021	BY:	/s/ Kevin S. Blair
			Kevin S. Blair
			President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Andrew J. Gregory, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Synovus Financial Corp.;

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 Synovus’ supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to Synovus 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 Synovus’ 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 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 Synovus’ 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:	August 4, 2021	BY:	/s/ Andrew J. Gregory, Jr.
			Andrew J. Gregory, Jr.
			Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION OF PERIODIC REPORT

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, Kevin S. Blair, the Chief Executive Officer of Synovus Financial Corp. (the “Company”), and Andrew J. Gregory, Jr., the Chief Financial Officer of the Company, hereby certify that, to the best of their knowledge:

(1) The Company’s Quarterly Report on Form 10-Q for the period ended June 30, 2021 (the “Report”) fully complies with the requirements of section 13(a) or section 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 the Company.

Date:	August 4, 2021	BY:	/s/ Kevin S. Blair
			Kevin S. Blair
			President and Chief Executive Officer
Date:	August 4, 2021	BY:	/s/ Andrew J. Gregory, Jr.
			Andrew J. Gregory, Jr.
			Executive Vice President and Chief Financial Officer

This certification “accompanies” the Form 10-Q to which it relates, is not deemed filed with the SEC and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Form 10-Q, irrespective of any general incorporation contained in such filing.)

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 31, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2021
Entity File Number	1-10312
Entity Registrant Name	SYNOVUS FINANCIAL CORP
Entity Incorporation, State or Country Code	GA
Entity Tax Identification Number	58-1134883
Entity Address, Address Line One	1111 Bay Avenue, Suite 500
Entity Address, City or Town	Columbus,
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	31901
City Area Code	706
Local Phone Number	641-6500
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		146,445,522
Entity Central Index Key	0000018349
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $1.00 Par Value
Trading Symbol	SNV
Security Exchange Name	NYSE
Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series D
Trading Symbol	SNV - PrD
Security Exchange Name	NYSE
Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E
Entity Information [Line Items]
Title of 12(b) Security	Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series E
Trading Symbol	SNV - PrE
Security Exchange Name	NYSE

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 560,396	$ 531,579
Interest-bearing funds with Federal Reserve Bank	2,598,213	3,586,565
Interest earning deposits with banks	21,513	20,944
Federal funds sold and securities purchased under resale agreements	82,554	113,829
Total cash, cash equivalents, and restricted cash	3,262,676	4,252,917
Investment securities available for sale, at fair value	9,442,170	7,962,438
Loans held for sale (includes $202,216 and $216,647 measured at fair value, respectively)	750,916	760,123
Loans, net of deferred fees and costs	38,236,018	38,252,984
Allowance for loan losses	(516,708)	(605,736)
Cash surrender value of bank-owned life insurance	1,059,235	1,049,373
Premises, equipment, and software, net	446,447	463,959
Goodwill	452,390	452,390
Other intangible assets, net	40,354	45,112
Other assets	1,765,161	1,760,599
Total assets	54,938,659	54,394,159
Deposits:
Non-interest-bearing deposits	15,345,629	13,477,854
Interest-bearing deposits	31,826,333	33,213,717
Total deposits	47,171,962	46,691,571
Federal funds purchased and securities sold under repurchase agreements	194,786	227,922
Other short-term borrowings	0	7,717
Long-term debt	1,203,293	1,202,494
Other liabilities	1,130,904	1,103,121
Total liabilities	49,700,945	49,232,825
Shareholders' Equity
Preferred stock - no par value; authorized 100,000,000 shares; issued 22,000,000	537,145	537,145
Common stock - $1.00 par value; authorized 342,857,143 shares; issued 169,107,609 and 168,132,522; outstanding 147,071,532 and 148,039,495	169,108	168,133
Additional paid-in capital	3,872,949	3,851,208
Treasury stock, at cost; 22,036,077 and 20,093,027 shares	(824,197)	(731,806)
Accumulated other comprehensive income, net	45,726	158,635
Retained earnings	1,436,983	1,178,019
Total shareholders' equity	5,237,714	5,161,334
Total liabilities and shareholders' equity	$ 54,938,659	$ 54,394,159

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Loans held-for-sale, fair value disclosure	$ 202,216	$ 216,647
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares issued (in shares)	22,000,000	22,000,000
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	342,857,143	342,857,143
Common stock, shares issued (in shares)	169,107,609	168,132,522
Common stock, shares outstanding (in shares)	147,071,532	148,039,495
Treasury stock, shares at cost (in shares)	22,036,077	20,093,027

XML

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest income:
Loans, including fees	$ 371,288	$ 401,997	$ 743,779	$ 829,334
Investment securities available for sale	33,298	44,935	62,755	96,588
Loans held for sale	6,609	1,914	13,071	2,706
Federal Reserve Bank balances	709	394	1,383	1,902
Other earning assets	839	2,329	1,572	4,936
Total interest income	412,743	451,569	822,560	935,466
Interest expense:
Deposits	19,371	56,474	44,389	142,476
Federal funds purchased, securities sold under repurchase agreements, and other short-term borrowings	34	1,778	69	7,710
Long-term debt	11,478	16,751	22,386	35,454
Total interest expense	30,883	75,003	66,844	185,640
Net interest income	381,860	376,566	755,716	749,826
(Reversal of) provision for credit losses	(24,598)	141,851	(43,173)	300,573
Net interest income after (reversal of) provision for credit losses	406,458	234,715	798,889	449,253
Non-interest revenue:
Service charges on deposit accounts	21,414	15,567	41,448	36,255
Fiduciary and asset management fees	18,805	14,950	36,759	30,124
Card fees	13,304	9,186	25,300	20,136
Brokerage revenue	13,926	9,984	26,899	22,383
Mortgage banking income	13,842	23,530	36,157	35,757
Capital markets income	3,335	6,050	10,840	17,294
Income from bank-owned life insurance	7,188	7,756	16,031	13,794
Investment securities gains (losses), net	0	69,409	(1,990)	78,144
Other non-interest revenue	15,273	17,052	26,599	23,454
Total non-interest revenue	107,087	173,484	218,043	277,341
Non-interest expense:
Salaries and other personnel expense	160,567	159,597	322,044	309,274
Net occupancy, equipment, and software expense	41,825	41,727	82,959	83,921
Third-party processing and other services	24,419	22,666	44,451	45,366
Professional fees	7,947	15,305	17,031	25,980
FDIC insurance and other regulatory fees	5,547	6,851	11,127	12,129
Other operating expenses	30,226	37,995	60,053	83,751
Total non-interest expense	270,531	284,141	537,665	560,421
Income before income taxes	243,014	124,058	479,267	166,173
Income tax expense	56,814	30,866	105,975	34,461
Net income	186,200	93,192	373,292	131,712
Less: Preferred stock dividends	8,291	8,291	16,581	16,581
Net income available to common shareholders	$ 177,909	$ 84,901	$ 356,711	$ 115,131
Net income per common share, basic (in dollars per share)	$ 1.20	$ 0.58	$ 2.41	$ 0.78
Net income per common share, diluted (in dollars per share)	$ 1.19	$ 0.57	$ 2.38	$ 0.78
Weighted average common shares outstanding, basic (in shares)	148,113	147,288	148,289	147,300
Weighted average common shares outstanding, diluted (in shares)	149,747	147,733	149,764	148,067

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income, Before-tax Amount	$ 243,014	$ 124,058	$ 479,267	$ 166,173
Net income, Tax Effect	(56,814)	(30,866)	(105,975)	(34,461)
Net income	186,200	93,192	373,292	131,712
Net unrealized gains (losses) on investment securities available for sale: Before-tax Amount
Net unrealized holding gains (losses) arising during the period, Before-tax Amount	46,342	(11,939)	(118,899)	146,403
Reclassification adjustment for net losses realized in net income, Before-tax Amount	0	(69,409)	1,990	(78,144)
Net unrealized gains (losses), Before-tax Amount	46,342	(81,348)	(116,909)	68,259
Net unrealized gains (losses) on investment securities available for sale: Tax Effect
Net unrealized holding gains (losses) arising during the period, Tax Effect	(11,725)	3,092	31,056	(37,919)
Reclassification adjustment for net losses realized in net income, Tax Effect	0	17,977	(515)	20,239
Net unrealized gains (losses), Tax Effect	(11,725)	21,069	30,541	(17,680)
Net unrealized gains (losses) on investment securities available for sale: Net of Tax Amount
Net unrealized holding gains (losses) arising during the period, Net of Tax Amount	34,617	(8,847)	(87,843)	108,484
Reclassification adjustment for net losses realized in net income, Net of Tax Amount	0	(51,432)	1,475	(57,905)
Net unrealized gains (losses), Net of Tax Amount	34,617	(60,279)	(86,368)	50,579
Unrealized gains (losses) on derivative instruments designated as cash flow hedges, Before-tax Amount
Net unrealized gains (losses) arising during the period, Before-tax Amount	(1,923)	8,823	(30,980)	117,462
Reclassification adjustment for realized (gains) losses included in net income, Before-tax Amount	(3,657)	(270)	(5,256)	(390)
Net change, Before-tax Amount	(5,580)	8,553	(36,236)	117,072
Unrealized gains (losses) on derivative instruments designated as cash flow hedges, Tax Effect
Net unrealized gains (losses) arising during the period, Income Tax	486	(2,285)	8,360	(30,423)
Reclassification adjustment for realized (gains) losses included in net income, Income Tax	925	70	1,335	101
Net change, Income Tax	1,411	(2,215)	9,695	(30,322)
Unrealized gains (losses) on derivative instruments designated as cash flow hedges, Net of Tax Amount
Net unrealized gains (losses) arising during the period, Net of Tax Amount	(1,437)	6,538	(22,620)	87,039
Reclassification adjustment for realized (gains) losses included in net income, Net of Tax Amount	(2,732)	(200)	(3,921)	(289)
Net change, Net of Tax Amount	(4,169)	6,338	(26,541)	86,750
Other comprehensive income (loss), Before-tax Amount	40,762	(72,795)	(153,145)	185,331
Other comprehensive income (loss), Tax Effect	(10,314)	18,854	40,236	(48,002)
Other comprehensive income (loss), Net of Tax	30,448	(53,941)	(112,909)	137,329
Comprehensive income, Net of Tax Amount	$ 216,648	$ 39,251	$ 260,383	$ 269,041

XML

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Impact from Adoption	Preferred Stock	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Retained Earnings Impact from Adoption
Beginning balance at Dec. 31, 2019		$ 4,941,690	$ (35,721)	$ 537,145	$ 166,801	$ 3,819,336	$ (715,560)	$ 65,641	$ 1,068,327	$ (35,721)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		131,712							131,712
Other comprehensive income (loss)		137,329						137,329
Cash dividends declared on common stock		(97,210)							(97,210)
Cash dividends declared on preferred stock	[1]	(16,581)							(16,581)
Repurchases of common stock including costs to repurchase		(16,246)					(16,246)
Restricted share unit vesting and taxes paid related to net share settlement		(7,404)			379	(7,783)
Stock options exercised, net		6,479			226	6,253
Share-based compensation expense		8,920				8,920
Ending balance at Jun. 30, 2020		5,052,968		537,145	167,406	3,826,726	(731,806)	202,970	1,050,527
Beginning balance at Mar. 31, 2020		5,065,205		537,145	167,360	3,821,357	(731,806)	256,911	1,014,238
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		93,192							93,192
Other comprehensive income (loss)		(53,941)						(53,941)
Cash dividends declared on common stock		(48,612)							(48,612)
Cash dividends declared on preferred stock	[2]	(8,291)							(8,291)
Restricted share unit vesting and taxes paid related to net share settlement		(147)			34	(181)
Stock options exercised, net		212			12	200
Share-based compensation expense		5,350				5,350
Ending balance at Jun. 30, 2020		5,052,968		537,145	167,406	3,826,726	(731,806)	202,970	1,050,527
Beginning balance at Dec. 31, 2020		5,161,334		537,145	168,133	3,851,208	(731,806)	158,635	1,178,019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		373,292							373,292
Other comprehensive income (loss)		(112,909)						(112,909)
Cash dividends declared on common stock		(97,744)							(97,744)
Cash dividends declared on preferred stock	[1]	(16,581)							(16,581)
Repurchases of common stock including costs to repurchase		(92,507)					(92,507)
Restricted share unit vesting and taxes paid related to net share settlement		(6,579)			306	(6,885)
Stock options exercised, net		14,879			669	14,210
Warrants exercised with net settlement and common stock reissued		0				(113)	116		(3)
Share-based compensation expense		14,529				14,529
Ending balance at Jun. 30, 2021		5,237,714		537,145	169,108	3,872,949	(824,197)	45,726	1,436,983
Beginning balance at Mar. 31, 2021		5,161,717		537,145	168,978	3,864,281	(731,690)	15,278	1,307,725
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		186,200							186,200
Other comprehensive income (loss)		30,448						30,448
Cash dividends declared on common stock		(48,651)							(48,651)
Cash dividends declared on preferred stock	[2]	(8,291)							(8,291)
Repurchases of common stock including costs to repurchase		(92,507)					(92,507)
Restricted share unit vesting and taxes paid related to net share settlement		(394)			35	(429)
Stock options exercised, net		2,327			95	2,232
Share-based compensation expense		6,865				6,865
Ending balance at Jun. 30, 2021		$ 5,237,714		$ 537,145	$ 169,108	$ 3,872,949	$ (824,197)	$ 45,726	$ 1,436,983

[1] For the six months ended June 30, 2021 and 2020, dividends per share were $0.78 and $0.74 for Series D and Series E Preferred Stock, respectively. See accompanying notes to unaudited interim consolidated financial statements.

[2] For the three months ended June 30, 2021 and 2020, dividends per share were $0.39 and $0.37 for Series D and Series E Preferred Stock, respectively.

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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends on common stock (in dollars per share)	$ 0.33	$ 0.33	$ 0.66	$ 0.66
Preferred Stock | Series D Preferred Stock
Cash dividends on preferred stock (in dollars per share)	0.39	0.39	0.78	0.78
Preferred Stock | Series E Preferred Stock
Cash dividends on preferred stock (in dollars per share)	$ 0.37	$ 0.37	$ 0.74	$ 0.74

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net income	$ 373,292	$ 131,712
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Reversal of) provision for credit losses	(43,173)	300,573
Depreciation, amortization, and accretion, net	84,091	49,921
Deferred income tax expense (benefit)	25,111	(54,741)
Originations of loans held for sale	(2,042,076)	(1,806,895)
Proceeds from sales and payments on loans held for sale	2,078,089	1,045,342
Gain on sales of loans held for sale, net	(27,502)	(25,785)
Increase in other assets	(24,873)	(1,631,678)
(Decrease) increase in other liabilities	(1,554)	1,175,881
Investment securities losses (gains), net	1,990	(78,144)
Share-based compensation expense	13,131	8,920
Other	0	1,904
Net cash provided by (used in) operating activities	436,526	(882,990)
Investing Activities
Proceeds from maturities and principal collections of investment securities available for sale	1,616,397	930,004
Proceeds from sales of investment securities available for sale	223,977	2,682,861
Purchases of investment securities available for sale	(3,476,929)	(3,890,074)
Proceeds from sales of loans	86,650	17,969
Purchases of loans	(1,041,602)	0
Net decrease (increase) in loans	928,084	(2,748,040)
Net (purchases) redemptions of Federal Home Loan Bank stock	(1,200)	71,272
Net purchases of Federal Reserve Bank stock	(954)	(454)
Net proceeds from settlement (purchases) of bank-owned life insurance policies	6,264	(249,273)
Net increase in premises, equipment and software	(12,419)	(20,186)
Other	4,141	33,514
Net cash used in investing activities	(1,667,591)	(3,172,407)
Financing Activities
Net increase in deposits	480,391	5,788,189
Net (decrease) increase in federal funds purchased and securities sold under repurchase agreements	(33,135)	59,886
Net decrease in other short-term borrowings	(7,717)	(1,453,560)
Repayments and redemption of long-term debt	0	(1,076,759)
Proceeds from issuance of long-term debt, net	0	1,248,441
Dividends paid to common shareholders	(97,927)	(92,741)
Dividends paid to preferred shareholders	(16,581)	(16,581)
Repurchases of common stock	(92,507)	(16,246)
Issuances, net of taxes paid, under equity compensation plans	8,300	(925)
Net cash provided by financing activities	240,824	4,439,704
(Decrease) increase in cash and cash equivalents including restricted cash	(990,241)	384,307
Cash, cash equivalents, and restricted cash, at beginning of period	4,252,917	1,186,918
Cash, cash equivalents, and restricted cash at end of period	3,262,676	1,571,225
Supplemental Disclosures:
Income taxes paid	115,282	257
Interest paid	78,772	194,687
Non-cash Activities
Premises and equipment transferred to other assets held for sale	3,864	5,837
Securities purchased during the period but settled after period-end	48,795	0
Loans foreclosed and transferred to other real estate	801	2,013
Loans transferred to other loans held for sale at fair value	0	933,353
Dividends declared on common stock during the period but paid after period-end	48,651	48,612
Dividends declared on preferred stock during the period but paid after period-end	$ 5,141	$ 5,141

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Basis of Presentation and Accounting Policies

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation and Accounting Policies

Note 1 - Basis of Presentation and Accounting Policies

General

The accompanying unaudited interim consolidated financial statements of Synovus Financial Corp. include the accounts of the Parent Company and its consolidated subsidiaries. Synovus Financial Corp. is a financial services company based in Columbus, Georgia. Through its wholly-owned subsidiary, Synovus Bank, a Georgia state-chartered bank that is a member of the Federal Reserve System, the Company provides commercial and retail banking in addition to a full suite of specialized products and services including private banking, treasury management, wealth management, mortgage services, premium finance, asset-based lending, structured lending, and international banking. Synovus also provides financial planning, and investment advisory services through its wholly-owned subsidiaries, Synovus Trust and Synovus Securities, as well as its GLOBALT and Creative Financial Group divisions. Synovus Bank is positioned in markets in the Southeast, with 285 branches and 386 ATMs in Alabama, Florida, Georgia, South Carolina, and Tennessee.

The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the SEC Form 10-Q and Article 10 of Regulation S-X; therefore, they do not include all information and footnotes necessary for a fair presentation of financial position, results of operations, comprehensive income, and cash flows in conformity with GAAP. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the periods covered by this Report have been included. The accompanying unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in Synovus' 2020 Form 10-K.

Reclassifications

Prior periods' consolidated financial statements are reclassified whenever necessary to conform to the current periods' presentation.

Use of Estimates in the Preparation of Financial Statements

In preparing the consolidated financial statements in accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the respective consolidated balance sheets and the reported amounts of revenues and expenses for the periods presented. Actual results could differ significantly from those estimates.

Material estimates that are particularly susceptible to change relate to the determination of the ACL; estimates of fair value; income taxes; and contingent liabilities.

Recently Adopted Accounting Standards

ASU 2020-08, Codification Improvements to Subtopic 310-20, Receivables – Nonrefundable Fees and Other Costs. The guidance in this ASU pertains to the shortened amortization period for certain purchased callable debt securities held at a premium, which premium is amortized to the earliest call date in accordance with ASC 310-20-25-33, and clarifies that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-25-33 for each reporting period. The amendments in this ASU are effective for fiscal years beginning after December 15, 2020. Synovus adopted ASU 2020-08 effective January 1, 2021 with no material impact to the unaudited consolidated financial statements.

ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. In December 2019, the FASB issued ASU 2019-12 to simplify and reduce complexities when accounting for income taxes by removing certain exceptions. Among the provisions of this guidance is the requirement that an entity reflect the effect of an enacted change in tax laws or rates in the annual effective tax rate computation in the interim period that includes the enactment date. ASU 2019-12 is effective for public entities for fiscal years beginning after December 15, 2020. Synovus adopted ASU 2019-12 effective January 1, 2021 with no material impact to the unaudited consolidated financial statements unless there are changes in tax law that require recognition as set forth in this guidance.

Recently Issued Accounting Standards Not Yet Adopted

ASU 2021-01, Reference Rate Reform (Topic 848). In January 2021, the FASB issued ASU 2021-01 which provides optional expedients and exceptions in Topic 848 for derivative instruments and hedge accounting modifications resulting from the discounting transition of reference rate reform. The expedients and exceptions provided by ASU 2021-01 will not be available after December 31, 2022, other than for existing hedging relationships entered into by December 31, 2022. The ASU may be applied as of the beginning of an interim period that includes or is subsequent to March 12, 2020, until the sunset date of December 31, 2022. Synovus adopted ASU 2020-04 Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting on October 1, 2020. While Synovus has not yet finalized the election of optional expedients for

ASU 2021-01, we do not currently expect there to be a material financial impact to the Company regardless of which optional expedients the Company selects to replace LIBOR.

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Investment Securities Available for Sale

6 Months Ended

Jun. 30, 2021

Investments [Abstract]

Investment Securities Available for Sale

Note 2 - Investment Securities Available for Sale

The amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities available for sale at June 30, 2021 and December 31, 2020 are summarized below.

	June 30, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	120,119	$	355	$	(2,243)	$	118,231
U.S. Government agency securities	54,161		1,954		—		56,115
Mortgage-backed securities issued by U.S. Government agencies	981,107		2,084		(7,077)		976,114
Mortgage-backed securities issued by U.S. Government sponsored enterprises	6,670,497		75,773		(37,855)		6,708,415
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	1,103,547		9,644		(9,145)		1,104,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	450,814		12,750		(3,022)		460,542
Corporate debt securities and other debt securities	18,260		447		—		18,707
Total investment securities available for sale	$	9,398,505	$	103,007	$	(59,342)	$	9,442,170
	December 31, 2020
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	20,257	$	—	$	—	$	20,257
U.S. Government agency securities	79,638		2,682		—		82,320
Mortgage-backed securities issued by U.S. Government agencies	1,216,012		7,930		(5,925)		1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises	4,865,858		134,188		—		5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	1,245,644		15,309		(10,576)		1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	354,244		16,677		—		370,921
Corporate debt securities and other debt securities	20,211		457		(168)		20,500
Total investment securities available for sale	$	7,801,864	$	177,243	$	(16,669)	$	7,962,438

At June 30, 2021 and December 31, 2020, investment securities with a carrying value of $3.73 billion and $3.84 billion, respectively, were pledged to secure certain deposits and other liabilities, as required by law or contractual agreements.            

Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2021 and December 31, 2020 are presented below.

	June 30, 2021
	Less than 12 Months				12 Months or Longer				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
U.S. Treasury securities	$	47,586	$	(2,243)	$	—	$	—	$	47,586	$	(2,243)
Mortgage-backed securities issued by U.S. Government agencies	421,704		(5,251)		153,330		(1,826)		575,034		(7,077)
Mortgage-backed securities issued by U.S. Government sponsored enterprises	3,156,297		(37,855)		—		—		3,156,297		(37,855)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	524,044		(6,858)		140,934		(2,287)		664,978		(9,145)
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	166,011		(3,022)		—		—		166,011		(3,022)
Total	$	4,315,642	$	(55,229)	$	294,264	$	(4,113)	$	4,609,906	$	(59,342)
	December 31, 2020
	Less than 12 Months				12 Months or Longer				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Mortgage-backed securities issued by U.S. Government agencies	$	566,896	$	(5,925)	$	—	$	—	$	566,896	$	(5,925)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	803,429		(10,576)		—		—		803,429		(10,576)
Corporate debt securities and other debt securities	9,337		(168)		—		—		9,337		(168)
Total	$	1,379,662	$	(16,669)	$	—	$	—	$	1,379,662	$	(16,669)

As of June 30, 2021, Synovus had 91 investment securities in a loss position for less than twelve months and 8 investment securities in a loss position for twelve months or longer. Synovus does not intend to sell investment securities in an unrealized loss position prior to the recovery of the unrealized loss, which may not be until maturity, and has the ability and intent to hold those securities for that period of time. Additionally, Synovus is not currently aware of any circumstances which will require it to sell any of the securities that are in an unrealized loss position prior to the respective securities' recovery of all such unrealized losses. As such, no write-downs to the amortized cost basis of the portfolio were recorded at June 30, 2021.

At June 30, 2021, no ACL was established for investment securities. Substantially all of the unrealized losses on the securities portfolio were the result of changes in market interest rates compared to the date the securities were acquired rather than the credit quality of the issuers or underlying loans. U.S. Treasury and agency securities and agency mortgage-backed securities are issued, guaranteed or otherwise supported by the United States government, an agency of the United States government, or a government sponsored enterprise.

The amortized cost and fair value by contractual maturity of investment securities available for sale at June 30, 2021 are shown below. The expected life of MBSs or CMOs may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. For purposes of the maturity table, MBSs and CMOs, which are not due at a single maturity date, have been classified based on the final contractual maturity date.

	Distribution of Maturities at June 30, 2021
(in thousands)	Within One  Year		1 to 5 Years		5 to 10  Years		More Than  10 Years		Total
Amortized Cost
U.S. Treasury securities	$	20,260	$	—	$	99,859	$	—	$	120,119
U.S. Government agency securities	430		1,595		52,136		—		54,161
Mortgage-backed securities issued by U.S. Government agencies	—		1,081		151		979,875		981,107
Mortgage-backed securities issued by U.S. Government sponsored enterprises	105		—		61,715		6,608,677		6,670,497
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		—		185		1,103,362		1,103,547
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		109,272		244,651		96,891		450,814
Corporate debt securities and other debt securities	—		9,504		8,756		—		18,260
Total amortized cost	$	20,795	$	121,452	$	467,453	$	8,788,805	$	9,398,505
Fair Value
U.S. Treasury securities	$	20,260	$	—	$	97,971	$	—	$	118,231
U.S. Government agency securities	432		1,609		54,074		—		56,115
Mortgage-backed securities issued by U.S. Government agencies	—		1,124		158		974,832		976,114
Mortgage-backed securities issued by U.S. Government sponsored enterprises	106		—		64,294		6,644,015		6,708,415
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		—		192		1,103,854		1,104,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		113,193		246,286		101,063		460,542
Corporate debt securities and other debt securities	—		9,872		8,835		—		18,707
Total fair value	$	20,798	$	125,798	$	471,810	$	8,823,764	$	9,442,170

Proceeds from sales, gross gains, and gross losses on sales of securities available for sale for the three and six months ended June 30, 2021 and 2020 are presented below. The specific identification method is used to reclassify gains and losses out of other comprehensive income at the time of sale.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Proceeds from sales of investment securities available for sale	$	—	$	2,269,682	$	223,977	$	2,682,861
Gross realized gains on sales	—		75,105		—		83,839
Gross realized losses on sales	—		(5,696)		(1,990)		(5,695)
Investment securities gains (losses), net	$	—	$	69,409	$	(1,990)	$	78,144

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Loans and Allowance for Loan Losses

6 Months Ended

Jun. 30, 2021

Loans and Allowance for Loan Losses [Abstract]

Loans and Allowance for Loan Losses

Note 3 - Loans and Allowance for Loan Losses

Aging and Non-Accrual Analysis

The following tables provide a summary of current, accruing past due, and non-accrual loans by portfolio class as of June 30, 2021 and December 31, 2020.

	June 30, 2021
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual with an ALL		Non-accrual without an ALL		Total
Commercial, financial and agricultural	$	12,002,589	$	11,161	$	841	$	12,002	$	49,197	$	21,746	$	12,085,534
Owner-occupied	7,048,621		1,987		836		2,823		13,155		—		7,064,599
Total commercial and industrial	19,051,210		13,148		1,677		14,825		62,352		21,746		19,150,133
Investment properties	9,205,776		7,461		2		7,463		2,367		2,407		9,218,013
1-4 family properties	632,412		1,076		381		1,457		1,982		493		636,344
Land and development	504,270		263		121		384		2,040		—		506,694
Total commercial real estate	10,342,458		8,800		504		9,304		6,389		2,900		10,361,051
Consumer mortgages	5,144,394		4,992		—		4,992		51,376		—		5,200,762
Home equity lines	1,346,562		2,711		—		2,711		8,938		—		1,358,211
Credit cards	282,361		1,524		1,623		3,147		—		—		285,508
Other consumer loans	1,858,684		13,731		611		14,342		7,327		—		1,880,353
Total consumer	8,632,001		22,958		2,234		25,192		67,641		—		8,724,834
Loans, net of deferred fees and costs	$	38,025,669	$	44,906	$	4,415	$	49,321	$	136,382	$	24,646	$	38,236,018

	December 31, 2020
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual with an ALL		Non-accrual without an ALL		Total
Commercial, financial and agricultural	$	12,321,514	$	10,256	$	996	$	11,252	$	55,527	$	21,859	$	12,410,152
Owner-occupied	7,087,992		1,913		92		2,005		20,019		—		7,110,016
Total commercial and industrial	19,409,506		12,169		1,088		13,257		75,546		21,859		19,520,168
Investment properties	9,075,843		2,751		154		2,905		24,631		—		9,103,379
1-4 family properties	621,492		3,548		36		3,584		2,383		1,236		628,695
Land and development	591,048		422		—		422		1,899		264		593,633
Total commercial real estate	10,288,383		6,721		190		6,911		28,913		1,500		10,325,707
Consumer mortgages	5,495,415		8,851		485		9,336		8,740		—		5,513,491
Home equity lines	1,521,575		4,006		—		4,006		12,145		—		1,537,726
Credit cards	276,778		2,363		1,877		4,240		—		—		281,018
Other consumer loans	1,062,899		9,122		477		9,599		2,376		—		1,074,874
Total consumer	8,356,667		24,342		2,839		27,181		23,261		—		8,407,109
Loans, net of deferred fees and costs	$	38,054,556	$	43,232	$	4,117	$	47,349	$	127,720	$	23,359	$	38,252,984

Interest income on non-accrual loans outstanding that would have been recorded if the loans had been current and performing in accordance with their original terms was $2.6 million and $2.8 million for the three months ended June 30, 2021 and 2020, respectively, and $6.0 million and $4.9 million for the six months ended June 30, 2021 and 2020, respectively. Of the interest income recognized during the three months ended June 30, 2021 and 2020, cash-basis interest income was $538 thousand and $484 thousand, respectively. Cash-basis interest income was $1.2 million and $1.4 million for the six months ended June 30, 2021 and 2020, respectively.

Pledged Loans

Loans with carrying values of $14.29 billion and $15.05 billion, respectively, were pledged as collateral for borrowings and capacity at June 30, 2021 and December 31, 2020, respectively, to the FHLB and Federal Reserve Bank.

Portfolio Segment Risk Factors

The risk characteristics and collateral information of each portfolio segment are as follows:

Commercial and Industrial Loans - The C&I loan portfolio is comprised of general middle market and commercial banking clients across a diverse set of industries. In accordance with Synovus' lending policy, each loan undergoes a detailed underwriting process which incorporates uniform underwriting standards and oversight in proportion to the size and complexity of the lending relationship. These loans are secured by collateral such as business equipment, inventory, and real estate. Whether for real estate or non-real estate purpose, credit decisions on loans in the C&I portfolio are based on cash flow from the operations of the business as the primary source of repayment of the debt, with underlying real estate or other collateral being the secondary source of repayment. PPP loans, which are categorized as C&I loans, were $1.60 billion at June 30, 2021 and are guaranteed by the SBA.

Commercial Real Estate Loans - CRE loans primarily consist of income-producing investment properties loans. Additionally, CRE loans include 1-4 family properties loans as well as land and development loans. Investment properties loans consist of construction and mortgage loans for income-producing properties and are primarily made to finance multi-family properties, hotels, office buildings, shopping centers, warehouses and other commercial development properties. 1-4 family properties loans include construction loans to homebuilders and commercial mortgage loans related to 1-4 family rental properties and are almost always secured by the underlying property being financed by such loans. These properties are primarily located in the markets served by Synovus. Land and development loans include commercial and residential development as well as land acquisition loans and are secured by land held for future development, typically in excess of one year. Properties securing these loans are substantially within markets served by Synovus, and loan terms generally include personal guarantees from the principals. Loans in this portfolio are underwritten based on the LTV of the collateral and the capacity of the guarantor(s).

Consumer Loans - The consumer loan portfolio consists of a wide variety of loan products offered through Synovus' banking network including first and second residential mortgages, HELOCs, and credit card loans, as well as home improvement loans, student, personal, and auto loans from third-party lending. The majority of Synovus' consumer loans are consumer mortgages and HELOCs secured by first and second liens on residential real estate primarily located in the markets served by Synovus. The primary source of repayment for all consumer loans is generally the personal income of the borrower(s).

Credit Quality Indicators

The credit quality of the loan portfolio is reviewed and updated no less frequently than annually using the standard asset classification system utilized by the federal banking agencies. These classifications are divided into three groups: Not Criticized (Pass), Special Mention, and Classified or Adverse rating (Substandard, Doubtful, and Loss) and are defined as follows:

Pass - loans which are well protected by the current net worth and paying capacity of the obligor (or guarantors, if any) or by the fair value, less cost to acquire and sell in a timely manner, of any underlying collateral.

Special Mention - loans which have potential weaknesses that deserve management's close attention. These loans are not adversely classified and do not expose an institution to sufficient risk to warrant an adverse classification.

Substandard - loans which are inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged, if any. Loans with this classification are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.

Doubtful - loans which have all the weaknesses inherent in loans categorized as Substandard with the added characteristic that the weaknesses make collection or liquidation in full highly questionable and improbable on the basis of currently known facts, conditions, and values.

Loss - loans which are considered by management to be uncollectible and of such little value that their continuance on the institution's books as an asset, without establishment of a specific valuation allowance or charge-off, is not warranted. Synovus fully reserves for any loans rated as Loss.

In the following tables, consumer loans are generally assigned a risk grade similar to the classifications described above; however, upon reaching 90 days and 120 days past due, they are generally downgraded to Substandard and Loss, respectively, in accordance with the FFIEC Retail Credit Classification Policy. Additionally, in accordance with Interagency Supervisory Guidance, the risk grade classifications of consumer loans (consumer mortgages and HELOCs) secured by junior liens on 1-4 family residential properties also consider available information on the payment status of any associated senior liens with other financial institutions.

The following tables summarize each loan portfolio class by risk grade and origination year as of June 30, 2021 and December 31, 2020 as required under CECL.

	June 30, 2021
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2021		2020		2019		2018		2017		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Commercial, financial and agricultural
Pass	$	1,515,420	$	2,149,994	$	1,144,130	$	755,925	$	519,704	$	1,118,928	$	4,332,632	$	44,177	$	11,580,910
Special Mention	1,482		67,377		46,077		11,516		17,074		3,424		78,717		440		226,107
Substandard(1)	7,706		58,956		37,439		12,201		20,766		39,323		82,883		2,085		261,359
Doubtful(2)	449		512		2,776		13,132		—		—		289		—		17,158
Total commercial, financial and agricultural	1,525,057		2,276,839		1,230,422		792,774		557,544		1,161,675		4,494,521		46,702		12,085,534
Owner-occupied
Pass	667,812		1,293,871		1,226,446		1,041,975		829,705		1,403,658		387,603		—		6,851,070
Special Mention	680		4,294		11,397		16,291		3,326		22,395		8,180		—		66,563
Substandard(1)	721		3,546		26,400		51,240		28,277		30,440		—		—		140,624
Doubtful(2)	—		—		—		6,342		—		—		—		—		6,342
Total owner-occupied	669,213		1,301,711		1,264,243		1,115,848		861,308		1,456,493		395,783		—		7,064,599
Total commercial and industrial	2,194,270		3,578,550		2,494,665		1,908,622		1,418,852		2,618,168		4,890,304		46,702		19,150,133
Investment properties
Pass	637,057		1,342,718		2,226,278		1,507,075		872,163		1,606,709		289,261		—		8,481,261
Special Mention	—		1,032		80,673		152,823		107,557		207,195		57,204		—		606,484
Substandard(1)	7,435		334		9,843		56,177		18,136		38,203		140		—		130,268
Total investment properties	644,492		1,344,084		2,316,794		1,716,075		997,856		1,852,107		346,605		—		9,218,013
1-4 family properties
Pass	157,416		136,528		66,762		55,745		70,774		88,755		48,205		—		624,185
Special Mention	491		158		—		365		—		248		—		—		1,262
Substandard(1)	1,745		108		437		4,723		926		2,360		598		—		10,897
Total 1-4 family properties	159,652		136,794		67,199		60,833		71,700		91,363		48,803		—		636,344

	June 30, 2021
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2021		2020		2019		2018		2017		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Land and development
Pass	57,117		67,046		120,637		74,328		64,803		72,639		35,548		—		492,118
Special Mention	—		834		1,948		2,369		24		997		—		—		6,172
Substandard(1)	—		1,233		48		3,231		881		3,011		—		—		8,404
Total land and development	57,117		69,113		122,633		79,928		65,708		76,647		35,548		—		506,694
Total commercial real estate	861,261		1,549,991		2,506,626		1,856,836		1,135,264		2,020,117		430,956		—		10,361,051
Consumer mortgages
Pass	624,582		1,735,940		730,083		303,577		517,050		1,227,662		965		—		5,139,859
Substandard(1)	203		148		2,114		14,037		5,757		38,421		—		—		60,680
Loss(3)	—		—		—		—		—		223		—		—		223
Total consumer mortgages	624,785		1,736,088		732,197		317,614		522,807		1,266,306		965		—		5,200,762
Home equity lines
Pass	—		—		—		—		—		—		1,264,828		77,373		1,342,201
Substandard(1)	—		—		—		—		—		—		9,708		5,376		15,084
Doubtful(2)	—		—		—		—		—		—		—		18		18
Loss(3)	—		—		—		—		—		—		766		142		908
Total home equity lines	—		—		—		—		—		—		1,275,302		82,909		1,358,211
Credit cards
Pass	—		—		—		—		—		—		283,887		—		283,887
Substandard(1)	—		—		—		—		—		—		409		—		409
Loss(4)	—		—		—		—		—		—		1,212		—		1,212
Total credit cards	—		—		—		—		—		—		285,508		—		285,508
Other consumer loans
Pass	220,495		873,734		182,445		68,046		80,624		118,009		328,734		—		1,872,087
Substandard(1)	213		552		2,232		1,483		2,774		766		234		—		8,254
Loss(4)	—		—		—		—		—		12		—		—		12
Total other consumer loans	220,708		874,286		184,677		69,529		83,398		118,787		328,968		—		1,880,353
Total consumer	845,493		2,610,374		916,874		387,143		606,205		1,385,093		1,890,743		82,909		8,724,834
Loans, net of deferred fees and costs	$	3,901,024	$	7,738,915	$	5,918,165	$	4,152,601	$	3,160,321	$	6,023,378	$	7,212,003	$	129,611	$	38,236,018

(1)    The majority of loans within Substandard risk grade are accruing loans at June 30, 2021.

(2)    Loans within Doubtful risk grade are on non-accrual status and generally have an ALL equal to 50% of the loan amount.

(3)    Loans within Loss risk grade are on non-accrual status and have an ALL equal to the full loan amount.

(4)    Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an ALL equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Retail Credit Classification Policy.

	December 31, 2020
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2020		2019		2018		2017		2016		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Commercial, financial and agricultural
Pass	$	3,819,048	$	1,333,460	$	847,283	$	582,612	$	551,413	$	633,871	$	4,102,751	$	49,762	$	11,920,200
Special Mention	63,307		40,618		12,723		22,070		1,665		5,545		60,741		489		207,158
Substandard(1)	28,698		36,618		24,867		36,072		12,808		35,172		84,498		514		259,247
Doubtful(2)	—		3,721		19,778		—		—		—		48		—		23,547
Total commercial, financial and agricultural	3,911,053		1,414,417		904,651		640,754		565,886		674,588		4,248,038		50,765		12,410,152
Owner-occupied
Pass	1,321,680		1,275,435		1,131,183		982,056		555,932		1,297,070		349,566		—		6,912,922
Special Mention	6,170		9,995		10,682		14,138		1,582		13,768		—		—		56,335
Substandard(1)	2,570		22,793		42,615		26,033		7,316		29,794		—		—		131,121
Doubtful(2)	—		—		9,638		—		—		—		—		—		9,638
Total owner-occupied	1,330,420		1,308,223		1,194,118		1,022,227		564,830		1,340,632		349,566		—		7,110,016
Total commercial and industrial	5,241,473		2,722,640		2,098,769		1,662,981		1,130,716		2,015,220		4,597,604		50,765		19,520,168
Investment properties
Pass	1,055,440		2,126,667		1,999,345		1,091,880		483,780		1,301,088		229,044		—		8,287,244
Special Mention	1,482		66,160		176,794		136,004		138,362		129,401		55,440		—		703,643
Substandard(1)	1,007		4,770		24,476		19,820		21,875		40,509		35		—		112,492
Total investment properties	1,057,929		2,197,597		2,200,615		1,247,704		644,017		1,470,998		284,519		—		9,103,379
1-4 family properties
Pass	197,320		95,145		70,267		88,454		38,729		97,374		27,657		—		614,946
Special Mention	402		—		508		109		786		118		—		—		1,923
Substandard(1)	1,527		653		4,312		1,141		554		2,299		1,340		—		11,826
Total 1-4 family properties	199,249		95,798		75,087		89,704		40,069		99,791		28,997		—		628,695
Land and development
Pass	84,985		173,302		83,734		92,911		12,249		76,380		53,250		—		576,811
Special Mention	857		1,995		2,866		282		—		1,332		636		—		7,968
Substandard(1)	1,229		425		4,664		915		136		1,485		—		—		8,854
Total land and development	87,071		175,722		91,264		94,108		12,385		79,197		53,886		—		593,633
Total commercial real estate	1,344,249		2,469,117		2,366,966		1,431,516		696,471		1,649,986		367,402		—		10,325,707

	December 31, 2020
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2020		2019		2018		2017		2016		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Consumer mortgages
Pass	1,871,512		874,769		425,711		678,255		685,810		965,382		1,040		—		5,502,479
Substandard(1)	33		961		748		889		866		7,224		—		—		10,721
Loss(3)	—		—		—		—		—		291		—		—		291
Total consumer mortgages	1,871,545		875,730		426,459		679,144		686,676		972,897		1,040		—		5,513,491
Home equity lines
Pass	—		—		—		—		—		—		1,429,755		90,832		1,520,587
Substandard(1)	—		—		—		—		—		—		9,698		5,996		15,694
Doubtful(2)	—		—		—		—		—		—		—		19		19
Loss(3)	—		—		—		—		—		—		1,283		143		1,426
Total home equity lines	—		—		—		—		—		—		1,440,736		96,990		1,537,726
Credit cards
Pass	—		—		—		—		—		—		279,142		—		279,142
Substandard(1)	—		—		—		—		—		—		595		—		595
Loss(4)	—		—		—		—		—		—		1,281		—		1,281
Total credit cards	—		—		—		—		—		—		281,018		—		281,018
Other consumer loans
Pass	252,160		190,820		89,187		100,459		80,365		61,040		297,637		—		1,071,668
Substandard(1)	19		762		262		1,195		121		585		227		—		3,171
Loss(4)	—		—		—		—		—		35		—		—		35
Total other consumer loans	252,179		191,582		89,449		101,654		80,486		61,660		297,864		—		1,074,874
Total consumer	2,123,724		1,067,312		515,908		780,798		767,162		1,034,557		2,020,658		96,990		8,407,109
Loans, net of deferred fees and costs	$	8,709,446	$	6,259,069	$	4,981,643	$	3,875,295	$	2,594,349	$	4,699,763	$	6,985,664	$	147,755	$	38,252,984

(1)    The majority of loans within Substandard risk grade are accruing loans at December 31, 2020.

(2)    Loans within Doubtful risk grade are on non-accrual status and generally have an ALL equal to 50% of the loan amount.

(3)    Loans within Loss risk grade are on non-accrual status and have an ALL equal to the full loan amount.

(4)    Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an ALL equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Retail Credit Classification Policy.

Collateral-Dependent Loans

We classify a loan as collateral-dependent when our borrower is experiencing financial difficulty, and we expect repayment to be provided substantially through the operation or sale of collateral. Our commercial loans have collateral that is comprised of real estate and business assets. Our consumer loans have collateral that is substantially comprised of residential real estate.

There were no significant changes in the extent to which collateral secures our collateral-dependent loans during the three and six months ended June 30, 2021.

Rollforward of Allowance for Loan Losses

The following tables detail the changes in the ALL by loan segment for the three and six months ended June 30, 2021 and 2020.

	As Of and For the Three Months Ended June 30, 2021
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at March 31, 2021	$	254,777	$	113,812	$	194,625	$	563,214
Charge-offs	(18,729)		(3,839)		(8,285)		(30,853)
Recoveries	1,495		377		2,435		4,307
(Reversal of) provision for loan losses	17,395		(18,237)		(19,118)		(19,960)
Ending balance at June 30, 2021	$	254,938	$	92,113	$	169,657	$	516,708
	As Of and For the Three Months Ended June 30, 2020
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at March 31, 2020	$	216,950	$	107,117	$	169,385	$	493,452
Charge-offs	(23,245)		(689)		(6,844)		(30,778)
Recoveries	3,261		536		2,935		6,732
Provision for loan losses	32,949		64,562		21,731		119,242
Ending balance at June 30, 2020	$	229,915	$	171,526	$	187,207	$	588,648
	As Of and For the Six Months Ended June 30, 2021
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at December 31, 2020	$	229,555	$	130,742	$	245,439	$	605,736
Charge-offs	(28,146)		(14,158)		(13,874)		(56,178)
Recoveries	4,267		1,403		3,758		9,428
(Reversal of) provision for loan losses	49,262		(25,874)		(65,666)		(42,278)
Ending balance at June 30, 2021	$	254,938	$	92,113	$	169,657	$	516,708
	As Of and For the Six Months Ended June 30, 2020
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at December 31, 2019	$	145,782	$	67,430	$	68,190	$	281,402
Impact from adoption of ASC 326	(2,310)		(651)		85,955		82,994
Beginning balance, after adoption of ASC 326, at January 1, 2020	$	143,472	$	66,779	$	154,145	$	364,396
Charge-offs	(38,130)		(1,706)		(14,816)		(54,652)
Recoveries	5,002		935		4,608		10,545
Provision for loan losses	119,571		105,518		43,270		268,359
Ending balance at June 30, 2020	$	229,915	$	171,526	$	187,207	$	588,648

The ALL of $516.7 million and the reserve for unfunded commitments of $46.9 million, which is recorded in other liabilities, comprise the total ACL of $563.6 million at June 30, 2021. The ACL decreased $89.9 million from December 31, 2020, resulting in an ACL to loans coverage ratio of 1.47% at June 30, 2021.

The ACL is estimated using a two-year reasonable and supportable forecast period. To the extent the lives of the loans in the portfolio extend beyond the period for which a reasonable and supportable forecast can be made, the Company reverts on a straight-line basis back to the historical rates over a one-year period. Synovus utilizes multiple economic forecast scenarios sourced from a reputable third-party provider and probability-weighted internally. The scenarios include a baseline forecast

representing management's view, an upside scenario reflecting an accelerated economic recovery, and two downside scenarios with increasingly adverse economic outcomes. At June 30, 2021, economic scenario weights incorporated a 40% downside bias, consistent with March 31, 2021. The baseline outlook used in the June 30, 2021 estimate showed improving economic conditions with the unemployment rate declining to 4.5% by the end of 2021, compared to the first quarter of 2021’s ACL estimate which had the unemployment rate at 5.7% by the end of 2021.

Reversal of provision for credit losses includes the reversals of provisions for loan losses and unfunded commitments. The reversal of provision for credit losses of $24.6 million and $43.2 million for the three and six months ended June 30, 2021, respectively, included net charge-offs of $26.5 million and $46.8 million, respectively. The reversal of provision for credit losses and related reduction in the ACL primarily resulted from the continued improvement in the economic forecast for pooled loans and the reduction in the individually analyzed reserve as a result of charge-offs of pre-existing reserves that were not replaced. This was partially offset by $10.6 million and $25.8 million in reserves added as a result of purchases of $434.6 million and $1.04 billion of third-party lending loans for the three and six months ended June 30, 2021, respectively.

TDRs

Information about Synovus' TDRs is presented in the following tables. Synovus began entering into loan modifications with borrowers in response to the COVID-19 pandemic, some of which have not been classified as TDRs, and therefore are not included in the discussion below. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" in Synovus' 2020 Form 10-K for information on Synovus' loan modifications due to COVID-19. The following tables represent, by concession type, the post-modification balance for loans modified or renewed during the three and six months ended June 30, 2021 and 2020 that were reported as accruing or non-accruing TDRs.

TDRs by Concession Type
	Three Months Ended June 30, 2021
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	18	$	1,770	$	1,174	$	2,944
Owner-occupied	5	1,155		—		1,155
Total commercial and industrial	23	2,925		1,174		4,099
Investment properties	1	419		—		419
1-4 family properties	2	158		—		158
Land and development	1	366		—		366
Total commercial real estate	4	943		—		943
Consumer mortgages	2	331		—		331
Home equity lines	14	900		96		996
Other consumer loans	13	187		245		432
Total consumer	29	1,418		341		1,759
Total TDRs	56	$	5,286	$	1,515	$	6,801	(2)
	Three Months Ended June 30, 2020
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	40	$	1,503	$	2,000	$	3,503
Owner-occupied	7	453		1,434		1,887
Total commercial and industrial	47	1,956		3,434		5,390
Investment properties	2	5,599		—		5,599
1-4 family properties	4	69		549		618
Land and development	1	91		—		91
Total commercial real estate	7	5,759		549		6,308
Consumer mortgages	10	556		1,482		2,038
Home equity lines	14	181		918		1,099
Other consumer loans	18	19		798		817
Total consumer	42	756		3,198		3,954
Total TDRs	96	$	8,471	$	7,181	$	15,652	(3)

(1)    Other concessions generally include term extensions, interest only payments for a period of time, or principal forgiveness, but there was no principal forgiveness for the three months ending June 30, 2021 and 2020.

(2)    No net charge-offs were recorded during the three months ended June 30, 2021.

(3)    No net charge-offs were recorded during the three months ended June 30, 2020.

	Six Months Ended June 30, 2021
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	58	$	5,002	$	3,737	$	8,739
Owner-occupied	10	2,409		399		2,808
Total commercial and industrial	68	7,411		4,136		11,547
Investment properties	6	2,402		—		2,402
1-4 family properties	7	621		39		660
Land and development	2	366		43		409
Total commercial real estate	15	3,389		82		3,471
Consumer mortgages	2	331		—		331
Home equity lines	27	1,487		258		1,745
Other consumer loans	86	316		4,864		5,180
Total consumer	115	2,134		5,122		7,256
Total TDRs	198	$	12,934	$	9,340	$	22,274	(2)
	Six Months Ended June 30, 2020
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	76	$	5,226	$	4,011	$	9,237
Owner-occupied	12	1,821		1,530		3,351
Total commercial and industrial	88	7,047		5,541		12,588
Investment properties	4	28,669		—		28,669
1-4 family properties	10	793		991		1,784
Land and development	2	541		—		541
Total commercial real estate	16	30,003		991		30,994
Consumer mortgages	16	1,072		2,566		3,638
Home equity lines	33	455		1,882		2,337
Other consumer loans	47	97		2,694		2,791
Total consumer	96	1,624		7,142		8,766
Total TDRs	200	$	38,674	$	13,674	$	52,348	(3)

(1)    Other concessions generally include term extensions, interest only payments for a period of time, or principal forgiveness, but there was no principal forgiveness for the six months ending June 30, 2021 and 2020.

(2)    No net charge-offs were recorded during the six months ended June 30, 2021.

(3)    No net charge-offs were recorded during the six months ended June 30, 2020.

For both the three and six months ended June 30, 2021 there were five defaults with a recorded investment of $172 thousand on accruing TDRs restructured during the previous twelve months (defaults are defined as the earlier of the TDR being placed on non-accrual status or reaching 90 days past due with respect to principal and/or interest payments) compared to one default with a recorded investment of $27 thousand and four defaults with a recorded investment of $645 thousand, respectively, for the three and six months ended June 30, 2020. As of June 30, 2021 and December 31, 2020, there were no commitments to lend a material amount of additional funds to any customer whose loan was classified as a TDR.

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Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Note 4 - Goodwill and Other Intangible Assets

Goodwill allocated to each reporting unit at June 30, 2021 and December 31, 2020 is presented as follows:

(in thousands)	June 30, 2021		December 31, 2020
Community Banking Reporting Unit	$	256,323	$	256,323
Wholesale Banking Reporting Unit	171,636		171,636
Consumer Mortgage Reporting Unit	—		—
Wealth Management Reporting Unit	24,431		24,431
Total Goodwill	$	452,390	$	452,390

The following table presents changes in the carrying amount of goodwill for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Balance at beginning of period	$	452,390	$	497,267	$	452,390	$	497,267
Changes during the period from:
Other	—		—		—		—
Balance at end of period	$	452,390	$	497,267	$	452,390	$	497,267

Goodwill is not amortized but is evaluated for impairment on an annual basis or whenever an event occurs or circumstances change to indicate that it is more likely than not that an impairment loss has been incurred (i.e., a triggering event). Synovus performs its annual evaluation of goodwill impairment during the fourth quarter of each year. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 7 - Goodwill and Other Intangible Assets" to the consolidated financial statements of Synovus' 2020 Form 10-K for information on Synovus' quantitative assessments of goodwill impairment during 2020.

The following table shows the gross carrying amount and accumulated amortization of other intangible assets as of June 30, 2021 and December 31, 2020, which primarily consist of core deposit intangible assets. The CDI is being amortized over its estimated useful life of approximately ten years utilizing an accelerated method. Aggregate other intangible assets amortization expense for the three and six months ended June 30, 2021 was $2.4 million and $4.8 million, respectively. Aggregate other intangible assets amortization expense for the three and six months ended June 30, 2020 was $2.6 million and $5.3 million, respectively.

(in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
June 30, 2021
CDI	$	57,400	$	(24,003)	$	33,397
Other	12,500		(5,543)		6,957
Total other intangible assets	$	69,900	$	(29,546)	$	40,354
December 31, 2020
CDI	$	57,400	$	(19,829)	$	37,571
Other	12,500		(4,959)		7,541
Total other intangible assets	$	69,900	$	(24,788)	$	45,112

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Shareholders' Equity and Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Shareholders' Equity and Other Comprehensive Income (Loss)

Note 5 - Shareholders' Equity and Other Comprehensive Income (Loss)

Repurchases of Common Stock

Synovus announced on January 26, 2021 that its Board of Directors authorized share repurchases of up to $200 million in 2021. During the three months ended June 30, 2021, Synovus repurchased under this program a total of $92.5 million, or 1.9 million shares of its common stock, at an average price of $47.51 per share. Synovus made no share repurchases during the three months ended March 31, 2021.

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)

The following tables illustrate activity within the balances in accumulated other comprehensive income (loss) by component for the three and six months ended June 30, 2021 and 2020.

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)
(in thousands)	Net unrealized gains (losses) on investment securities available for sale(1)		Net unrealized gains (losses) on cash flow hedges(1)		Post-retirement unfunded health benefit		Total
Balance at March 31, 2021	$	(15,316)	$	30,594	$	—	$	15,278
Other comprehensive income (loss) before reclassifications	34,617		(1,437)		—		33,180
Amounts reclassified from AOCI	—		(2,732)		—		(2,732)
Net current period other comprehensive income (loss)	34,617		(4,169)		—		30,448
Balance at June 30, 2021	$	19,301	$	26,425	$	—	$	45,726
Balance at March, 31, 2020	$	194,524	$	61,925	$	462	$	256,911
Other comprehensive income (loss) before reclassifications	(8,847)		6,538		—		(2,309)
Amounts reclassified from AOCI	(51,432)		(200)		—		(51,632)
Net current period other comprehensive income (loss)	(60,279)		6,338		—		(53,941)
Balance at June 30, 2020	$	134,245	$	68,263	$	462	$	202,970
Balance, December 31, 2020	$	105,669	$	52,966	$	—	$	158,635
Other comprehensive income (loss) before reclassifications	(87,843)		(22,620)		—		(110,463)
Amounts reclassified from AOCI	1,475		(3,921)		—		(2,446)
Net current period other comprehensive income (loss)	(86,368)		(26,541)		—		(112,909)
Balance at June 30, 2021	$	19,301	$	26,425	$	—	$	45,726
Balance, December 31, 2019	$	83,666	$	(18,487)	$	462	$	65,641
Other comprehensive income (loss) before reclassifications	108,484		87,039		—		195,523
Amounts reclassified from AOCI	(57,905)		(289)		—		(58,194)
Net current period other comprehensive income (loss)	50,579		86,750		—		137,329
Balance at June 30, 2020	$	134,245	$	68,263	$	462	$	202,970

(1)    For all periods presented, the ending balance in net unrealized gains (losses) on investment securities available for sale and cash flow hedges includes unrealized losses of $13.3 million and $12.1 million, respectively, related to residual tax effects remaining in OCI due to previously established deferred tax asset valuation allowances in 2010 and 2011. In accordance with ASC 740-20-45-11(b), under the portfolio approach, these unrealized losses are realized at the time the entire portfolio is sold or disposed.

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Fair Value Accounting

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Accounting

Note 6 - Fair Value Accounting

See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" of Synovus' 2020 Form 10-K for a description of valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis.

The following table presents assets and liabilities measured at estimated fair value on a recurring basis.

	June 30, 2021								December 31, 2020
(in thousands)	Level 1		Level 2		Level 3		Total Estimated Fair Value		Level 1		Level 2		Level 3		Total Estimated Fair Value
Assets
Trading securities:
Mortgage-backed securities issued by U.S. Government agencies	$	—	$	—	$	—	$	—	$	—	$	10,185	$	—	$	10,185
Collateralized mortgage obligations issued by U.S. Government sponsored enterprises	—		265		—		265		—		158		—		158
Other mortgage-backed securities	—		282		—		282		—		178		—		178
State and municipal securities	—		1,495		—		1,495		—		176		—		176
Asset-backed securities	—		2,145		—		2,145		—		183		—		183
Total trading securities	$	—	$	4,187	$	—	$	4,187	$	—	$	10,880	$	—	$	10,880
Investment securities available for sale:
U.S. Treasury securities	$	118,231	$	—	$	—	$	118,231	$	20,257	$	—	$	—	$	20,257
U.S. Government agency securities	—		56,115		—		56,115		—		82,320		—		82,320
Mortgage-backed securities issued by U.S. Government agencies	—		976,114		—		976,114		—		1,218,017		—		1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises	—		6,708,415		—		6,708,415		—		5,000,046		—		5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		1,104,046		—		1,104,046		—		1,250,377		—		1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		460,542		—		460,542		—		370,921		—		370,921
Corporate debt securities and other debt securities	—		18,707		—		18,707		—		18,479		2,021		20,500
Total investment securities available for sale	$	118,231	$	9,323,939	$	—	$	9,442,170	$	20,257	$	7,940,160	$	2,021	$	7,962,438
Mortgage loans held for sale	$	—	$	202,216	$	—	$	202,216	$	—	$	216,647	$	—	$	216,647
Private equity investments	—		—		1,026		1,026		—		—		1,021		1,021
Mutual funds and mutual funds held in rabbi trusts	41,710		—		—		41,710		37,650		—		—		37,650
GGL/SBA loans servicing asset	—		—		3,321		3,321		—		—		3,258		3,258
Derivative assets	—		279,454		—		279,454		—		401,295		—		401,295
Liabilities
Trading liability for short positions	—		—		—		—		—		7,717		—		7,717
Earnout liability	—		—		6,427		6,427		—		—		5,677		5,677
Derivative liabilities	—		113,708		1,473		115,181		—		155,119		2,048		157,167

Fair Value Option

Synovus has elected the fair value option for mortgage loans held for sale primarily to ease the operational burden required to maintain hedge accounting for these loans. Synovus is still able to achieve effective economic hedges on mortgage loans held for sale without the time and expense needed to manage a hedge accounting program.

The following table summarizes the difference between the fair value and the UPB of mortgage loans held for sale and the changes in fair value of these loans. An immaterial portion of these changes in fair value was attributable to changes in instrument-specific credit risk.

Mortgage Loans Held for Sale
(in thousands)	As of June 30, 2021		As of December 31, 2020
Fair value	$	202,216	$	216,647
Unpaid principal balance	196,399		210,292
Fair value less aggregate unpaid principal balance	$	5,817	$	6,355

Changes in Fair Value Included in Net Income	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Mortgage loans held for sale	$	4,094	$	5,365	$	(538)	$	5,984

Activity for Level 3 Assets and Liabilities

See "Part II - Item 8. Financial Statements and Supplementary Data - Note 14 - Fair Value Accounting" of Synovus' 2020 Form 10-K for a description of the valuation techniques and significant inputs for Level 3 assets and liabilities that are measured at fair value on a recurring and non-recurring basis. During the three and six months ended June 30, 2021 and 2020, Synovus did not have any transfers in or out of Level 3 in the fair value hierarchy. The following tables provide rollforwards of Level 3 assets and liabilities measured at fair value on a recurring basis.

	Three Months Ended June 30, 2021
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	—	$	1,053	$	3,305	$	(5,677)	$	(1,768)
Total gains (losses) realized/unrealized:
Included in earnings	—		(27)		(252)		(750)		—
Additions	—		—		268		—		—
Settlements	—		—		—		—		295
Ending balance	$	—	$	1,026	$	3,321	$	(6,427)	$	(1,473)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2021	$	—	$	(27)	$	—	$	(750)	$	—
	Three Months Ended June 30, 2020
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	1,562	$	3,255	$	3,149	$	(11,016)	$	(2,050)
Total gains (losses) realized/unrealized:
Included in earnings	—		(2,557)		(291)		(4,908)		—
Unrealized gains (losses) included in OCI	100		—		—		—		—
Additions	—		—		161		—		—
Settlements	—		—		—		—		295
Ending balance	$	1,662	$	698	$	3,019	$	(15,924)	$	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2020	$	—	$	(2,557)	$	—	$	(4,908)	$	—

	Six Months Ended June 30, 2021
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	2,021	$	1,021	$	3,258	$	(5,677)	$	(2,048)
Total gains (losses) realized/unrealized:
Included in earnings			5		(430)		(750)		—
Sales	(2,021)		—		—		—		—
Additions	—		—		493		—		—
Settlements	—		—		—		—		575
Ending balance	$	—	$	1,026	$	3,321	$	(6,427)	$	(1,473)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2021	$	—	$	5	$	—	$	(750)	$	—
	Six Months Ended June 30, 2020
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	2,105	$	3,887	$	3,040	$	(11,016)	$	(2,339)
Total (losses) gains realized/unrealized:
Included in earnings	—		(3,189)		(555)		(4,908)		—
Unrealized gains (losses) included in OCI	(443)		—		—		—		—
Additions	—		—		534		—		—
Settlements	—		—		—		—		584
Ending balance	$	1,662	$	698	$	3,019	$	(15,924)	$	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2020	$	—	$	(3,189)	$	—	$	(4,908)	$	—

The following table presents assets measured at fair value on a non-recurring basis as of the dates indicated for which there was a fair value adjustment.

	June 30, 2021								June 30, 2020
(in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Loans(1)	$	—	$	—	$	29,201	$	29,201	$	—	$	—	$	21,138	$	21,138
Other real estate	—		—		42		42		—		—		5,902		5,902
MPS receivable	—		—		—		—		—		—		18,202		18,202
Other assets held for sale	—		—		1,170		1,170		—		—		1,634		1,634

(1)    Collateral-dependent loans that were written down to fair value of collateral.

ORE properties are included in other assets on the consolidated balance sheets. The carrying value of ORE at June 30, 2021 and December 31, 2020 was $1.5 million and $1.8 million, respectively.

The following table presents fair value adjustments recognized in earnings for the three and six months ended June 30, 2021 and 2020 for assets measured at fair value on a non-recurring basis still held at period-end.

	Three Months Ended June 30,				Six Months Ended June 30,				Location in Consolidated Statements of Income
(in thousands)	2021		2020		2021		2020
Loans(1)	$	13,476	$	14,950	$	13,504	$	14,950	Provision for credit losses
Other real estate	2		1,228		2		1,228		Other operating expenses
MPS receivable	—		—		—		2,663		Other operating expenses
Other assets held for sale	76		729		76		2,120		Other operating expenses

(1) Collateral-dependent loans that were written down to fair value of collateral.

Fair Value of Financial Instruments

The following tables present the carrying and estimated fair values of financial instruments at June 30, 2021 and December 31, 2020. The fair values represent management’s best estimates based on a range of methodologies and assumptions. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" to the consolidated financial statements of Synovus' 2020 Form 10-K for a description of how fair value measurements are determined.

	June 30, 2021
(in thousands)	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	$	3,262,676	$	3,262,676	$	3,262,676	$	—	$	—
Trading securities	4,187		4,187		—		4,187		—
Investment securities available for sale	9,442,170		9,442,170		118,231		9,323,939		—
Loans held for sale	750,916		751,632		—		202,216		549,416
Private equity investments	1,026		1,026		—		—		1,026
Mutual funds and mutual funds held in rabbi trusts	41,710		41,710		41,710		—		—
Loans, net	37,719,310		37,743,546		—		—		37,743,546
GGL/SBA loans servicing asset	3,321		3,321		—		—		3,321
Derivative assets	279,454		279,454		—		279,454		—
Financial liabilities
Non-interest-bearing deposits	$	15,345,629	$	15,345,629	$	—	$	15,345,629	$	—
Non-time interest-bearing deposits	27,181,793		27,181,793		—		27,181,793		—
Time deposits	4,644,540		4,663,354		—		4,663,354		—
Total deposits	$	47,171,962	$	47,190,776	$	—	$	47,190,776	$	—
Federal funds purchased and securities sold under repurchase agreements	194,786		194,786		194,786		—		—
Long-term debt	1,203,293		1,261,642		—		1,261,642		—
Earnout liability	6,427		6,427		—		—		6,427
Derivative liabilities	115,181		115,181		—		113,708		1,473

	December 31, 2020
(in thousands)	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	$	4,252,917	$	4,252,917	$	4,252,917	$	—	$	—
Trading securities	10,880		10,880		—		10,880		—
Investment securities available for sale	7,962,438		7,962,438		20,257		7,940,160		2,021
Loans held for sale	760,123		760,939		—		216,647		544,292
Private equity investments	1,021		1,021		—		—		1,021
Mutual funds and mutual funds held in rabbi trusts	37,650		37,650		37,650		—		—
Loans, net	37,647,248		37,605,881		—		—		37,605,881
GGL/SBA loans servicing asset	3,258		3,258		—		—		3,258
Derivative assets	401,295		401,295		—		401,295		—
Financial liabilities
Non-interest-bearing deposits	$	13,477,854	$	13,477,854	$	—	$	13,477,854	$	—
Non-time interest-bearing deposits	27,265,521		27,265,521		—		27,265,521		—
Time deposits	5,948,196		5,970,146		—		5,970,146		—
Total deposits	$	46,691,571	$	46,713,521	$	—	$	46,713,521	$	—
Federal funds purchased and securities sold under repurchase agreements	227,922		227,922		227,922		—		—
Trading liability for short positions	7,717		7,717		—		7,717		—
Long-term debt	1,202,494		1,266,825		—		1,266,825		—
Earnout liability	5,677		5,677		—		—		5,677
Derivative liabilities	157,167		157,167		—		155,119		2,048

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Derivative Instruments and Hedging Activities

6 Months Ended

Jun. 30, 2021

Summary of Derivative Instruments [Abstract]

Derivative Instruments and Hedging Activities

Note 7 - Derivative Instruments and Hedging Activities

Synovus utilizes derivative instruments to manage its exposure to various types of interest rate risk, exposures related to liquidity and credit risk, and to facilitate customer transactions. The primary types of derivative instruments utilized by Synovus consist of interest rate swaps, interest rate lock commitments made to prospective mortgage loan customers, commitments to sell fixed-rate mortgage loans, and foreign currency exchange forwards. Interest rate lock commitments represent derivative instruments since it is intended that such loans will be sold. Synovus is party to master netting arrangements with its dealer counterparties; however, Synovus does not offset assets and liabilities under these arrangements for financial statement presentation purposes. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" to the consolidated financial statements of Synovus' 2020 Form 10-K for additional information regarding accounting policies for derivatives.

Hedging Derivatives

Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. Synovus has entered into interest rate swap contracts to manage overall cash flow changes related to interest rate risk exposure on index-based variable rate commercial loans. The contracts effectively modify Synovus' exposure to interest rate risk by utilizing receive fixed/pay index-based variable rate interest rate swaps.

For cash flow hedges, if the hedged exposure is a cash flow exposure, the effective portion of the gain or loss on the derivative instrument is reported initially as a component of accumulated other comprehensive income (loss), net of the tax impact, and subsequently reclassified into earnings when the hedged transaction affects earnings with the impacts recorded in the same income statement line item used to present the earnings effect of the hedged item. When a cash flow hedge relationship is discontinued but the hedged cash flows, or forecasted transactions, are still expected to occur, gains or losses that were accumulated in OCI are amortized into earnings over the same periods which the hedged transactions would have affected earnings. If, however, it is probable the forecasted transactions will no longer occur, the remaining accumulated amounts in OCI for the impacted cash flow hedges are immediately recognized in earnings.

Synovus recorded unrealized gains of $757 thousand, or $565 thousand, after tax, in OCI during the first quarter of 2021 and $9.8 million, or $7.3 million, after-tax, in OCI, during the first quarter of 2020, related to terminated cash flow hedges, which are being recognized into earnings in conjunction with the effective terms of the original swaps through the fourth

quarter of 2025. Synovus recognized pre-tax income of $3.7 million and $5.3 million during the three and six months ended June 30, 2021 related to the amortization of terminated cash flow hedges.

As of June 30, 2021, Synovus expects to reclassify into earnings approximately $41 million in pre-tax income due to the receipt or payment of interest payments on all cash flow hedges within the next twelve months. Included in this amount is approximately $10 million in pre-tax income related to the amortization of terminated cash flow hedges. As of June 30, 2021, the maximum length of time over which Synovus is hedging its exposure to the variability in future cash flows is through the first quarter of 2026.

For derivative instruments that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately.

Counterparty Credit Risk and Collateral

Entering into derivative contracts potentially exposes Synovus to the risk of counterparties’ failure to fulfill their legal obligations, including, but not limited to, potential amounts due or payable under each derivative contract. Notional principal amounts are often used to express the volume of these transactions, but the amounts potentially subject to credit risk are much smaller. Synovus assesses the credit risk of its dealer counterparties by regularly monitoring publicly available credit rating information, evaluating other market indicators, and periodically reviewing detailed financials. Dealer collateral requirements are determined via risk-based policies and procedures and in accordance with existing agreements. Synovus seeks to minimize dealer credit risk by dealing with highly rated counterparties and by obtaining collateral for exposures above certain predetermined limits. Management closely monitors credit conditions within the customer swap portfolio, which management deems to be of higher risk than dealer counterparties. Collateral is secured at origination and credit related fair value adjustments are recorded against the asset value of the derivative as deemed necessary based upon an analysis, which includes consideration of the current asset value of the swap, customer risk rating, collateral value, and customer standing with regards to its swap contractual obligations and other related matters. Such asset values fluctuate based upon changes in interest rates regardless of changes in notional amounts and changes in customer specific risk.

Collateral Requirements

Certain derivative transactions have collateral requirements, both at the inception of the trade and as the value of each derivative position changes. As of June 30, 2021 and December 31, 2020, collateral totaling $118.2 million and $155.4 million, respectively, was pledged to the derivative counterparties to comply with collateral requirements. For derivatives cleared through central clearing houses, the variation margin payments made are legally characterized as settlements of the derivatives. As a result, these variation margin payments are netted against the fair value of the respective derivative contracts in the consolidated balance sheets and related disclosures. At June 30, 2021 and December 31, 2020, Synovus had a variation margin of $114.0 million and $162.7 million respectively, each reducing the derivative liability.

The following table reflects the notional amount and fair value of derivative instruments included on the consolidated balance sheets.

	June 30, 2021						December 31, 2020
			Fair Value						Fair Value
(in thousands)	Notional Amount		Derivative Assets (1)		Derivative Liabilities (2)		Notional Amount		Derivative Assets (1)		Derivative Liabilities (2)
Derivatives in cash flow hedging relationships:
Interest rate contracts	$	3,250,000	$	49,153	$	89	$	3,000,000	$	80,802	$	—
Total derivatives designated as hedging instruments			$	49,153	$	89			$	80,802	$	—
Derivatives not designated   as hedging instruments:
Interest rate contracts(3)	$	9,023,627	$	225,813	$	113,154	$	8,784,141	$	314,234	$	153,204
Mortgage derivatives - interest rate lock commitments	198,775		4,488		—		306,138		6,259		—
Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans	194,000		—		343		230,500		—		1,611
Other contracts(4)	171,321		—		122		234,884		—		304
Visa derivative	—		—		1,473		—		—		2,048
Total derivatives not designated as hedging instruments			$	230,301	$	115,092			$	320,493	$	157,167

(1)    Derivative assets are recorded in other assets on the consolidated balance sheets.

(2)    Derivative liabilities are recorded in other liabilities on the consolidated balance sheets.

(3)    Includes interest rate contracts for customer swaps and offsetting positions, net of variation margin payments.

(4)    Includes risk participation agreements sold. Additionally, the notional amount of risk participation agreements purchased was $6.3 million and $2.6 million at June 30, 2021 and December 31, 2020, respectively.

Synovus also provides foreign currency exchange services, primarily forward contracts, with counterparties to allow commercial customers to mitigate exchange rate risk. Synovus covers its risk by entering into an offsetting foreign currency exchange forward contract. The notional amount of foreign currency exchange forwards was $19.9 million and $24.1 million at June 30, 2021 and December 31, 2020, respectively. The fair value of foreign currency exchange forwards was negligible at June 30, 2021 and December 31, 2020 due to the very short duration of these contracts.

The following table presents the effect of hedging derivative instruments on the consolidated statements of income and the total amounts for the respective line item affected for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Total amounts presented in the consolidated statements of income in interest income on loans	$	7,605	$	5,261	$	15,947	$	5,086
Gain/loss on cash flow hedging relationships:(1)
Interest rate swaps:
Realized gains (losses) reclassified from AOCI, pre-tax, to interest income on loans	3,657		270		5,256		390
Pre-tax income recognized on cash flow hedges	$	3,657	$	270	$	5,256	$	390

(1)    See "Part I - Item 1. Financial Statements and Supplementary Data - Note 5 - Shareholders' Equity and Other Comprehensive Income (Loss) in this Report for additional information.

The pre-tax effect of changes in fair value from derivative instruments not designated as hedging instruments on the consolidated statements of income for the three and six months ended June 30, 2021 and 2020 is presented below.

		Gain (Loss) Recognized in Consolidated Statements of Income
		Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	Location in Consolidated Statements of Income	2021		2020		2021		2020
Derivatives not designated   as hedging instruments:
Interest rate contracts(1)	Capital markets income	$	(637)	$	653	$	310	$	49
Other contracts(2)	Capital markets income	(19)		4		182		(333)
Mortgage derivatives - interest rate lock commitments	Mortgage banking income	(53)		(634)		(1,772)		6,390
Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans	Mortgage banking income	(4,974)		3,701		1,268		(1,228)
Total derivatives not designated as hedging instruments		$	(5,683)	$	3,724	$	(12)	$	4,878

(1)    Gain (loss) represents net fair value adjustments (including credit related adjustments) for customer swaps and offsetting positions. Additionally, losses related to termination of customer swaps of $2.5 million were recorded in other non-interest expense during the first quarter of 2020.

(2)    Includes risk participation agreements sold.

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Net Income Per Common Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Net Income Per Common Share

Note 8 - Net Income Per Common Share

The following table displays a reconciliation of the information used in calculating basic and diluted net income per common share for the three and six months ended June 30, 2021 and 2020. Diluted net income per common share incorporates the potential impact of contingently issuable shares, including awards which require future service as a condition of delivery of the underlying common stock.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share data)	2021		2020		2021		2020
Basic Net Income Per Common Share:
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Weighted average common shares outstanding	148,113		147,288		148,289		147,300
Net income per common share, basic	$	1.20	$	0.58	$	2.41	$	0.78
Diluted Net Income Per Common Share:
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Weighted average common shares outstanding	148,113		147,288		148,289		147,300
Effect of dilutive outstanding equity-based awards, warrants, and earnout payments	1,634		445		1,475		767
Weighted average diluted common shares	149,747		147,733		149,764		148,067
Net income per common share, diluted	$	1.19	$	0.57	$	2.38	$	0.78

For the three months ended June 30, 2021 and 2020, there were zero and 1.3 million, respectively, potentially dilutive shares related to stock options to purchase shares of common stock that were outstanding, and for the six months ended June 30, 2021 and 2020, there were 21 thousand and 639 thousand, respectively, potentially dilutive shares related to stock options to purchase shares of common stock that were outstanding. These potentially dilutive shares were not included in the computation of diluted net income per common share because the effect would be anti-dilutive.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 9 - Commitments and Contingencies

In the normal course of business, Synovus enters into commitments to extend credit such as loan commitments and letters of credit to meet the financing needs of its customers. Synovus uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. Commitments to extend credit are agreements 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. Synovus also has commitments to fund certain low-income housing investments, solar energy, new market, and CRA investments.

The contractual amount of these financial instruments represents Synovus' maximum credit risk should the counterparty draw upon the commitment, and should the counterparty subsequently fail to perform according to the terms of the contract. Since many of the commitments are expected to expire without being drawn upon, total commitment amounts do not necessarily represent future cash requirements. Additionally, certain commitments (primarily consumer) can generally be canceled by providing notice to the borrower.

The ACL associated with unfunded commitments and letters of credit is recorded within other liabilities on the consolidated balance sheets. At June 30, 2021, the ACL for unfunded commitments was $46.9 million, compared to a reserve of $47.8 million at December 31, 2020. Additionally, an immaterial amount of unearned fees relating to letters of credit are recorded within other liabilities on the consolidated balance sheets.

Synovus invests in certain LIHTC partnerships which are engaged in the development and operation of affordable multi-family housing pursuant to Section 42 of the Code. Additionally, Synovus invests in certain solar energy tax credit partnerships pursuant to Section 48 of the Code and certain new market tax credit partnerships pursuant to section 45D of the Code. Synovus typically acts as a limited partner in these investments and does not exert control over the operating or financial policies of the partnerships and as such, is not considered the primary beneficiary of the partnership. For certain of its LIHTC investments, Synovus provides financing during the construction and development of the properties and is at risk for the funded amount of its equity investment plus the outstanding amount of any construction loans in excess of the fair value of the collateral for the loan, but has no obligation to fund the operations or working capital of the partnerships and is not exposed to losses beyond Synovus’ investment. Synovus receives tax credits related to these investments which are subject to recapture by taxing authorities based on compliance provisions required to be met at the project level.

Synovus also invests in certain other CRA partnerships including SBIC programs. The SBIC is a program initiated by the SBA in 1958 to assist in the funding of small business loans.

(in thousands)	June 30, 2021		December 31, 2020
Letters of credit*	$	185,433	$	190,562
Commitments to fund commercial and industrial loans	8,617,252		8,200,608
Commitments to fund commercial real estate, construction, and land development loans	3,286,077		3,290,041
Commitments under home equity lines of credit	1,681,782		1,602,831
Unused credit card lines	1,002,367		1,012,313
Other loan commitments	566,590		472,233
Total letters of credit and unfunded lending commitments	$	15,339,501	$	14,768,588

LIHTC, solar energy tax credit, new market tax credit, and other CRA partnerships:
Carrying amount included in other assets	$	350,692	$	262,855
Amount of future funding commitments included in carrying amount	198,575		133,946
Permanent and short-term construction loans and letter of credit commitments	200,476		84,552
Funded portion of permanent and short-term loans and letters of credit	37,362		9,762

*    Represent the contractual amount net of risk participations purchased of $28.5 million and $30.2 million at June 30, 2021 and December 31, 2020, respectively.

Merchant Services

In accordance with credit and debit card association rules, Synovus provides merchant processing services for customers with a contractual arrangement under which certain sales and processing support are provided through an outside merchant services provider with Synovus owning the merchant contract relationship. In addition, Synovus sponsors various third-party MPS businesses that process credit and debit card transactions on behalf of merchants. In connection with these services, a liability may arise in the event of a billing dispute between the merchant and a cardholder that is ultimately resolved in the cardholder's favor. If the merchant defaults on its obligations, the cardholder, through its issuing bank, generally has until six months after the date of the transaction to present a chargeback to the MPS, which is primarily liable for any losses on covered transactions. However, if a sponsored MPS fails to meet its obligations, then Synovus, as the sponsor, could be held liable for the disputed amount. Synovus seeks to mitigate this risk through its contractual arrangements with the MPS and the merchants by withholding future settlements, retaining cash reserve accounts and/or obtaining other security. For the three and six months ended June 30, 2021, Synovus and the sponsored entities processed and settled $28.89 billion and $55.15 billion of transactions, respectively. For the three and six months ended June 30, 2020, Synovus and the sponsored entities processed and settled $16.40 billion and $34.75 billion of transactions, respectively.

Synovus covered chargebacks related to a particular sponsored MPS during 2019 and 2018 where the MPS’s cash reserve account was unavailable to support the chargebacks. As of June 30, 2021, the remaining amount, net of reserves, included in other assets and classified in NPAs, is $15.3 million, compared to $15.6 million at December 31, 2020. While Synovus has contractual protections to mitigate against loss, repayment of the amounts owed to Synovus will depend in large part upon the continued financial viability and/or valuation of the MPS.

Legal Proceedings

Synovus and its subsidiaries are subject to various legal proceedings, claims and disputes that arise in the ordinary course of its business. Additionally, in the ordinary course of business, Synovus and its subsidiaries are subject to regulatory and governmental examinations, information gathering requests, inquiries and investigations. Synovus, like many other financial institutions, has been the target of legal actions and other proceedings asserting claims for damages and related relief for losses. These actions include mortgage loan and other loan put-back claims, claims and counterclaims asserted by individual borrowers related to their loans, allegations of violations of state and federal laws and regulations relating to banking practices, and allegations related to Synovus' participation in government stimulus programs, including putative class action matters. In addition to actual damages, if Synovus does not prevail in such asserted legal actions, credit-related litigation could result in additional write-downs or charge-offs of assets, which could adversely affect Synovus' results of operations during the period in which the write-down or charge-off were to occur.

Synovus carefully examines and considers each legal matter, and, in those situations where Synovus determines that a particular legal matter presents loss contingencies that are both probable and reasonably estimable, Synovus establishes an appropriate reserve. An event is considered to be probable if the future event is likely to occur. While the final outcome of any legal proceeding is inherently uncertain, based on the information currently available, advice of counsel and available insurance coverage, management believes that the amounts accrued with respect to legal matters as of June 30, 2021 are adequate. The actual costs of resolving legal claims may be higher or lower than the amounts accrued.

In addition, where Synovus determines that there is a reasonable possibility of a loss in respect of legal matters, Synovus considers whether it is able to estimate the total reasonably possible loss or range of loss. An event is “reasonably possible” if “the chance of the future event or events occurring is more than remote but less than likely.” An event is “remote” if “the chance of the future event or events occurring is more than slight but less than reasonably possible." In many situations, Synovus may be unable to estimate reasonably possible losses due to the preliminary nature of the legal matters, as well as a variety of other factors and uncertainties. For those legal matters where Synovus is able to estimate a range of reasonably possible losses, management currently estimates the aggregate range from our outstanding litigation is from zero to $5 million in excess of the amounts accrued, if any, related to those matters. This estimated aggregate range is based upon information currently available to Synovus, and the actual losses could prove to be lower or higher. As there are further developments in these legal matters, Synovus will reassess these matters, and the estimated range of reasonably possible losses may change as a result of this assessment. Based on Synovus' current knowledge and advice of counsel, management presently does not believe that the liabilities arising from these legal matters will have a material adverse effect on Synovus' consolidated financial condition, results of operations or cash flows. However, it is possible that the ultimate resolution of these legal matters could have a material adverse effect on Synovus' results of operations or financial condition for any particular period.

Synovus intends to vigorously pursue all available defenses to these legal matters, but will also consider other alternatives, including settlement, in situations where there is an opportunity to resolve such legal matters on terms that Synovus considers to be favorable, including in light of the continued expense and distraction of defending such legal matters. Synovus maintains insurance coverage, which may be available to cover legal fees, or potential losses that might be incurred in connection with such legal matters. The above-noted estimated range of reasonably possible losses does not take into consideration insurance coverage which may or may not be available for the respective legal matters.

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Segment Reporting

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Segment Reporting

Note 10 - Segment Reporting

Synovus' business segments are based on the products and services provided or the customers served and reflect the manner in which financial information is evaluated by the chief operating decision makers. Synovus has three major reportable business segments: Community Banking, Wholesale Banking, and Financial Management Services, with functional activities such as treasury, technology, operations, marketing, finance, enterprise risk, legal, human resources, corporate communications, executive management, among others, included in Treasury and Corporate Other.

Business segment results are determined based upon Synovus' management reporting system, which assigns balance sheet and income statement items to each of the business segments. Certain assets, liabilities, revenues, and expenses not allocated or attributable to a particular business segment are included in Treasury and Corporate Other. Synovus's third-party lending consumer loans and loans held for sale as well as PPP loans are included in Treasury and Corporate Other. The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike

financial accounting, are not based on authoritative guidance similar to GAAP. As a result, reported segment results are not necessarily comparable with similar information reported by other financial institutions.

The Community Banking business segment serves customers using a relationship-based approach through its branch, ATM, commercial, and private wealth network in addition to mobile, Internet, and telephone banking. This segment primarily provides individual, small business, and corporate customers with an array of comprehensive banking products and services including commercial, home equity, and other consumer loans, credit and debit cards, and deposit accounts.

The Wholesale Banking business segment serves primarily larger corporate customers by providing commercial lending and deposit services through specialty teams including middle market, CRE, senior housing, national accounts, premium finance, structured lending, healthcare, asset-based lending, and community investment capital.

The Financial Management Services business segment serves its customers by providing mortgage and trust services and also specializing in professional portfolio management for fixed-income securities, investment banking, the execution of securities transactions as a broker/dealer, asset management, financial planning, and family office services, as well as the provision of individual investment advice on equity and other securities.

Synovus uses a centralized FTP methodology to attribute appropriate net interest income to the business segments. The intent of the FTP methodology is to transfer interest rate risk from the business segments by providing matched duration funding of assets and liabilities. The result is to centralize the financial impact, management, and reporting of interest rate risk in the Treasury and Corporate Other function where it can be centrally monitored and managed. Treasury and Corporate Other includes certain assets and/or liabilities managed within that function. Additionally, Treasury and Corporate Other also charges (credits) an internal cost of funds for assets held in (or pays for funding provided by) each business segment. The process for determining FTP is based on a number of factors and assumptions, including prevailing market interest rates, the expected lives of various assets and liabilities, and the Company's broader funding profile.

The following tables present certain financial information for each reportable business segment for the three and six months ended June 30, 2021 and 2020. The application and development of management reporting methodologies is a dynamic process and is subject to periodic enhancements. As these enhancements are made, financial results presented by each reportable business segment may be periodically revised.

	Three Months Ended June 30, 2021
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	202,881	$	136,126	$	18,935	$	23,918	$	381,860
Non-interest revenue	32,212		7,000		52,345		15,530		107,087
Non-interest expense	69,120		21,290		46,773		133,348		270,531
Pre-provision net revenue	$	165,973	$	121,836	$	24,507	$	(93,900)	$	218,416

	Three Months Ended June 30, 2020
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	219,097	$	145,016	$	20,069	$	(7,616)	$	376,566
Non-interest revenue	23,747		5,682		52,976		91,079		173,484
Non-interest expense	74,764		22,934		48,394		138,049		284,141
Pre-provision net revenue	$	168,080	$	127,764	$	24,651	$	(54,586)	$	265,909

	Six Months Ended June 30, 2021
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	409,123	$	270,200	$	39,930	$	36,463	$	755,716
Non-interest revenue	61,966		14,319		110,928		30,830		218,043
Non-interest expense	137,178		42,014		94,447		264,026		537,665
Pre-provision net revenue	$	333,911	$	242,505	$	56,411	$	(196,733)	$	436,094

	Six Months Ended June 30, 2020
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	415,601	$	268,186	$	37,453	$	28,586	$	749,826
Non-interest revenue	54,071		15,009		100,360		107,901		277,341
Non-interest expense	148,737		43,647		91,785		276,252		560,421
Pre-provision net revenue	$	320,935	$	239,548	$	46,028	$	(139,765)	$	466,746

	June 30, 2021
(dollars in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Loans, net of deferred fees and costs	$	10,730,544	$	19,369,933	$	5,078,318	$	3,057,223	$	38,236,018
Total deposits	$	31,317,490	$	10,983,120	$	737,202	$	4,134,150	$	47,171,962
Total full-time equivalent employees	2,114		288		809		1,772		4,983
	December 31, 2020
(dollars in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Loans, net of deferred fees and costs	$	11,171,013	$	18,810,729	$	5,370,790	$	2,900,452	$	38,252,984
Total deposits	$	29,141,242	$	11,958,105	$	739,200	$	4,853,024	$	46,691,571
Total full-time equivalent employees	2,199		285		832		1,818		5,134

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Basis of Presentation and Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Reclassifications

Prior periods' consolidated financial statements are reclassified whenever necessary to conform to the current periods' presentation.

Use of Estimates in the Preparation of Financial Statements

In preparing the consolidated financial statements in accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the respective consolidated balance sheets and the reported amounts of revenues and expenses for the periods presented. Actual results could differ significantly from those estimates.

Material estimates that are particularly susceptible to change relate to the determination of the ACL; estimates of fair value; income taxes; and contingent liabilities.

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

Recently Adopted Accounting Standards

ASU 2020-08, Codification Improvements to Subtopic 310-20, Receivables – Nonrefundable Fees and Other Costs. The guidance in this ASU pertains to the shortened amortization period for certain purchased callable debt securities held at a premium, which premium is amortized to the earliest call date in accordance with ASC 310-20-25-33, and clarifies that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-25-33 for each reporting period. The amendments in this ASU are effective for fiscal years beginning after December 15, 2020. Synovus adopted ASU 2020-08 effective January 1, 2021 with no material impact to the unaudited consolidated financial statements.

ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. In December 2019, the FASB issued ASU 2019-12 to simplify and reduce complexities when accounting for income taxes by removing certain exceptions. Among the provisions of this guidance is the requirement that an entity reflect the effect of an enacted change in tax laws or rates in the annual effective tax rate computation in the interim period that includes the enactment date. ASU 2019-12 is effective for public entities for fiscal years beginning after December 15, 2020. Synovus adopted ASU 2019-12 effective January 1, 2021 with no material impact to the unaudited consolidated financial statements unless there are changes in tax law that require recognition as set forth in this guidance.

Recently Issued Accounting Standards Not Yet Adopted

ASU 2021-01, Reference Rate Reform (Topic 848). In January 2021, the FASB issued ASU 2021-01 which provides optional expedients and exceptions in Topic 848 for derivative instruments and hedge accounting modifications resulting from the discounting transition of reference rate reform. The expedients and exceptions provided by ASU 2021-01 will not be available after December 31, 2022, other than for existing hedging relationships entered into by December 31, 2022. The ASU may be applied as of the beginning of an interim period that includes or is subsequent to March 12, 2020, until the sunset date of December 31, 2022. Synovus adopted ASU 2020-04 Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting on October 1, 2020. While Synovus has not yet finalized the election of optional expedients for

ASU 2021-01

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Investment Securities Available for Sale (Tables)

6 Months Ended

Jun. 30, 2021

Investments [Abstract]

Summary of Available-for-Sale Investment Securities

The amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities available for sale at June 30, 2021 and December 31, 2020 are summarized below.

	June 30, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	120,119	$	355	$	(2,243)	$	118,231
U.S. Government agency securities	54,161		1,954		—		56,115
Mortgage-backed securities issued by U.S. Government agencies	981,107		2,084		(7,077)		976,114
Mortgage-backed securities issued by U.S. Government sponsored enterprises	6,670,497		75,773		(37,855)		6,708,415
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	1,103,547		9,644		(9,145)		1,104,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	450,814		12,750		(3,022)		460,542
Corporate debt securities and other debt securities	18,260		447		—		18,707
Total investment securities available for sale	$	9,398,505	$	103,007	$	(59,342)	$	9,442,170
	December 31, 2020
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury securities	$	20,257	$	—	$	—	$	20,257
U.S. Government agency securities	79,638		2,682		—		82,320
Mortgage-backed securities issued by U.S. Government agencies	1,216,012		7,930		(5,925)		1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises	4,865,858		134,188		—		5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	1,245,644		15,309		(10,576)		1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	354,244		16,677		—		370,921
Corporate debt securities and other debt securities	20,211		457		(168)		20,500
Total investment securities available for sale	$	7,801,864	$	177,243	$	(16,669)	$	7,962,438

Schedule of Gross Unrealized Losses on Investment Securities and Fair Value

Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2021 and December 31, 2020 are presented below.

	June 30, 2021
	Less than 12 Months				12 Months or Longer				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
U.S. Treasury securities	$	47,586	$	(2,243)	$	—	$	—	$	47,586	$	(2,243)
Mortgage-backed securities issued by U.S. Government agencies	421,704		(5,251)		153,330		(1,826)		575,034		(7,077)
Mortgage-backed securities issued by U.S. Government sponsored enterprises	3,156,297		(37,855)		—		—		3,156,297		(37,855)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	524,044		(6,858)		140,934		(2,287)		664,978		(9,145)
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	166,011		(3,022)		—		—		166,011		(3,022)
Total	$	4,315,642	$	(55,229)	$	294,264	$	(4,113)	$	4,609,906	$	(59,342)
	December 31, 2020
	Less than 12 Months				12 Months or Longer				Total
(in thousands)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Mortgage-backed securities issued by U.S. Government agencies	$	566,896	$	(5,925)	$	—	$	—	$	566,896	$	(5,925)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	803,429		(10,576)		—		—		803,429		(10,576)
Corporate debt securities and other debt securities	9,337		(168)		—		—		9,337		(168)
Total	$	1,379,662	$	(16,669)	$	—	$	—	$	1,379,662	$	(16,669)

Amortized Cost and Estimated Fair Value by Contractual Maturity of Investment Securities Available-for-Sale

For purposes of the maturity table, MBSs and CMOs, which are not due at a single maturity date, have been classified based on the final contractual maturity date.

	Distribution of Maturities at June 30, 2021
(in thousands)	Within One  Year		1 to 5 Years		5 to 10  Years		More Than  10 Years		Total
Amortized Cost
U.S. Treasury securities	$	20,260	$	—	$	99,859	$	—	$	120,119
U.S. Government agency securities	430		1,595		52,136		—		54,161
Mortgage-backed securities issued by U.S. Government agencies	—		1,081		151		979,875		981,107
Mortgage-backed securities issued by U.S. Government sponsored enterprises	105		—		61,715		6,608,677		6,670,497
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		—		185		1,103,362		1,103,547
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		109,272		244,651		96,891		450,814
Corporate debt securities and other debt securities	—		9,504		8,756		—		18,260
Total amortized cost	$	20,795	$	121,452	$	467,453	$	8,788,805	$	9,398,505
Fair Value
U.S. Treasury securities	$	20,260	$	—	$	97,971	$	—	$	118,231
U.S. Government agency securities	432		1,609		54,074		—		56,115
Mortgage-backed securities issued by U.S. Government agencies	—		1,124		158		974,832		976,114
Mortgage-backed securities issued by U.S. Government sponsored enterprises	106		—		64,294		6,644,015		6,708,415
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		—		192		1,103,854		1,104,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		113,193		246,286		101,063		460,542
Corporate debt securities and other debt securities	—		9,872		8,835		—		18,707
Total fair value	$	20,798	$	125,798	$	471,810	$	8,823,764	$	9,442,170

Schedule of Sales Activities of Available-for-Sale Securities

Proceeds from sales, gross gains, and gross losses on sales of securities available for sale for the three and six months ended June 30, 2021 and 2020 are presented below. The specific identification method is used to reclassify gains and losses out of other comprehensive income at the time of sale.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Proceeds from sales of investment securities available for sale	$	—	$	2,269,682	$	223,977	$	2,682,861
Gross realized gains on sales	—		75,105		—		83,839
Gross realized losses on sales	—		(5,696)		(1,990)		(5,695)
Investment securities gains (losses), net	$	—	$	69,409	$	(1,990)	$	78,144

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Loans and Allowance for Loan Losses (Tables)

6 Months Ended

Jun. 30, 2021

Loans and Allowance for Loan Losses [Abstract]

Schedule of Current, Accruing Past Due, and Non-accrual Loans

The following tables provide a summary of current, accruing past due, and non-accrual loans by portfolio class as of June 30, 2021 and December 31, 2020.

	June 30, 2021
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual with an ALL		Non-accrual without an ALL		Total
Commercial, financial and agricultural	$	12,002,589	$	11,161	$	841	$	12,002	$	49,197	$	21,746	$	12,085,534
Owner-occupied	7,048,621		1,987		836		2,823		13,155		—		7,064,599
Total commercial and industrial	19,051,210		13,148		1,677		14,825		62,352		21,746		19,150,133
Investment properties	9,205,776		7,461		2		7,463		2,367		2,407		9,218,013
1-4 family properties	632,412		1,076		381		1,457		1,982		493		636,344
Land and development	504,270		263		121		384		2,040		—		506,694
Total commercial real estate	10,342,458		8,800		504		9,304		6,389		2,900		10,361,051
Consumer mortgages	5,144,394		4,992		—		4,992		51,376		—		5,200,762
Home equity lines	1,346,562		2,711		—		2,711		8,938		—		1,358,211
Credit cards	282,361		1,524		1,623		3,147		—		—		285,508
Other consumer loans	1,858,684		13,731		611		14,342		7,327		—		1,880,353
Total consumer	8,632,001		22,958		2,234		25,192		67,641		—		8,724,834
Loans, net of deferred fees and costs	$	38,025,669	$	44,906	$	4,415	$	49,321	$	136,382	$	24,646	$	38,236,018

	December 31, 2020
(in thousands)	Current		Accruing 30-89 Days Past Due		Accruing 90 Days or Greater Past Due		Total Accruing Past Due		Non-accrual with an ALL		Non-accrual without an ALL		Total
Commercial, financial and agricultural	$	12,321,514	$	10,256	$	996	$	11,252	$	55,527	$	21,859	$	12,410,152
Owner-occupied	7,087,992		1,913		92		2,005		20,019		—		7,110,016
Total commercial and industrial	19,409,506		12,169		1,088		13,257		75,546		21,859		19,520,168
Investment properties	9,075,843		2,751		154		2,905		24,631		—		9,103,379
1-4 family properties	621,492		3,548		36		3,584		2,383		1,236		628,695
Land and development	591,048		422		—		422		1,899		264		593,633
Total commercial real estate	10,288,383		6,721		190		6,911		28,913		1,500		10,325,707
Consumer mortgages	5,495,415		8,851		485		9,336		8,740		—		5,513,491
Home equity lines	1,521,575		4,006		—		4,006		12,145		—		1,537,726
Credit cards	276,778		2,363		1,877		4,240		—		—		281,018
Other consumer loans	1,062,899		9,122		477		9,599		2,376		—		1,074,874
Total consumer	8,356,667		24,342		2,839		27,181		23,261		—		8,407,109
Loans, net of deferred fees and costs	$	38,054,556	$	43,232	$	4,117	$	47,349	$	127,720	$	23,359	$	38,252,984

Loan Portfolio Credit Exposure

The following tables summarize each loan portfolio class by risk grade and origination year as of June 30, 2021 and December 31, 2020 as required under CECL.

	June 30, 2021
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2021		2020		2019		2018		2017		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Commercial, financial and agricultural
Pass	$	1,515,420	$	2,149,994	$	1,144,130	$	755,925	$	519,704	$	1,118,928	$	4,332,632	$	44,177	$	11,580,910
Special Mention	1,482		67,377		46,077		11,516		17,074		3,424		78,717		440		226,107
Substandard(1)	7,706		58,956		37,439		12,201		20,766		39,323		82,883		2,085		261,359
Doubtful(2)	449		512		2,776		13,132		—		—		289		—		17,158
Total commercial, financial and agricultural	1,525,057		2,276,839		1,230,422		792,774		557,544		1,161,675		4,494,521		46,702		12,085,534
Owner-occupied
Pass	667,812		1,293,871		1,226,446		1,041,975		829,705		1,403,658		387,603		—		6,851,070
Special Mention	680		4,294		11,397		16,291		3,326		22,395		8,180		—		66,563
Substandard(1)	721		3,546		26,400		51,240		28,277		30,440		—		—		140,624
Doubtful(2)	—		—		—		6,342		—		—		—		—		6,342
Total owner-occupied	669,213		1,301,711		1,264,243		1,115,848		861,308		1,456,493		395,783		—		7,064,599
Total commercial and industrial	2,194,270		3,578,550		2,494,665		1,908,622		1,418,852		2,618,168		4,890,304		46,702		19,150,133
Investment properties
Pass	637,057		1,342,718		2,226,278		1,507,075		872,163		1,606,709		289,261		—		8,481,261
Special Mention	—		1,032		80,673		152,823		107,557		207,195		57,204		—		606,484
Substandard(1)	7,435		334		9,843		56,177		18,136		38,203		140		—		130,268
Total investment properties	644,492		1,344,084		2,316,794		1,716,075		997,856		1,852,107		346,605		—		9,218,013
1-4 family properties
Pass	157,416		136,528		66,762		55,745		70,774		88,755		48,205		—		624,185
Special Mention	491		158		—		365		—		248		—		—		1,262
Substandard(1)	1,745		108		437		4,723		926		2,360		598		—		10,897
Total 1-4 family properties	159,652		136,794		67,199		60,833		71,700		91,363		48,803		—		636,344

	June 30, 2021
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2021		2020		2019		2018		2017		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Land and development
Pass	57,117		67,046		120,637		74,328		64,803		72,639		35,548		—		492,118
Special Mention	—		834		1,948		2,369		24		997		—		—		6,172
Substandard(1)	—		1,233		48		3,231		881		3,011		—		—		8,404
Total land and development	57,117		69,113		122,633		79,928		65,708		76,647		35,548		—		506,694
Total commercial real estate	861,261		1,549,991		2,506,626		1,856,836		1,135,264		2,020,117		430,956		—		10,361,051
Consumer mortgages
Pass	624,582		1,735,940		730,083		303,577		517,050		1,227,662		965		—		5,139,859
Substandard(1)	203		148		2,114		14,037		5,757		38,421		—		—		60,680
Loss(3)	—		—		—		—		—		223		—		—		223
Total consumer mortgages	624,785		1,736,088		732,197		317,614		522,807		1,266,306		965		—		5,200,762
Home equity lines
Pass	—		—		—		—		—		—		1,264,828		77,373		1,342,201
Substandard(1)	—		—		—		—		—		—		9,708		5,376		15,084
Doubtful(2)	—		—		—		—		—		—		—		18		18
Loss(3)	—		—		—		—		—		—		766		142		908
Total home equity lines	—		—		—		—		—		—		1,275,302		82,909		1,358,211
Credit cards
Pass	—		—		—		—		—		—		283,887		—		283,887
Substandard(1)	—		—		—		—		—		—		409		—		409
Loss(4)	—		—		—		—		—		—		1,212		—		1,212
Total credit cards	—		—		—		—		—		—		285,508		—		285,508
Other consumer loans
Pass	220,495		873,734		182,445		68,046		80,624		118,009		328,734		—		1,872,087
Substandard(1)	213		552		2,232		1,483		2,774		766		234		—		8,254
Loss(4)	—		—		—		—		—		12		—		—		12
Total other consumer loans	220,708		874,286		184,677		69,529		83,398		118,787		328,968		—		1,880,353
Total consumer	845,493		2,610,374		916,874		387,143		606,205		1,385,093		1,890,743		82,909		8,724,834
Loans, net of deferred fees and costs	$	3,901,024	$	7,738,915	$	5,918,165	$	4,152,601	$	3,160,321	$	6,023,378	$	7,212,003	$	129,611	$	38,236,018

(1)    The majority of loans within Substandard risk grade are accruing loans at June 30, 2021.

(2)    Loans within Doubtful risk grade are on non-accrual status and generally have an ALL equal to 50% of the loan amount.

(3)    Loans within Loss risk grade are on non-accrual status and have an ALL equal to the full loan amount.

(4)    Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an ALL equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Retail Credit Classification Policy.

	December 31, 2020
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2020		2019		2018		2017		2016		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Commercial, financial and agricultural
Pass	$	3,819,048	$	1,333,460	$	847,283	$	582,612	$	551,413	$	633,871	$	4,102,751	$	49,762	$	11,920,200
Special Mention	63,307		40,618		12,723		22,070		1,665		5,545		60,741		489		207,158
Substandard(1)	28,698		36,618		24,867		36,072		12,808		35,172		84,498		514		259,247
Doubtful(2)	—		3,721		19,778		—		—		—		48		—		23,547
Total commercial, financial and agricultural	3,911,053		1,414,417		904,651		640,754		565,886		674,588		4,248,038		50,765		12,410,152
Owner-occupied
Pass	1,321,680		1,275,435		1,131,183		982,056		555,932		1,297,070		349,566		—		6,912,922
Special Mention	6,170		9,995		10,682		14,138		1,582		13,768		—		—		56,335
Substandard(1)	2,570		22,793		42,615		26,033		7,316		29,794		—		—		131,121
Doubtful(2)	—		—		9,638		—		—		—		—		—		9,638
Total owner-occupied	1,330,420		1,308,223		1,194,118		1,022,227		564,830		1,340,632		349,566		—		7,110,016
Total commercial and industrial	5,241,473		2,722,640		2,098,769		1,662,981		1,130,716		2,015,220		4,597,604		50,765		19,520,168
Investment properties
Pass	1,055,440		2,126,667		1,999,345		1,091,880		483,780		1,301,088		229,044		—		8,287,244
Special Mention	1,482		66,160		176,794		136,004		138,362		129,401		55,440		—		703,643
Substandard(1)	1,007		4,770		24,476		19,820		21,875		40,509		35		—		112,492
Total investment properties	1,057,929		2,197,597		2,200,615		1,247,704		644,017		1,470,998		284,519		—		9,103,379
1-4 family properties
Pass	197,320		95,145		70,267		88,454		38,729		97,374		27,657		—		614,946
Special Mention	402		—		508		109		786		118		—		—		1,923
Substandard(1)	1,527		653		4,312		1,141		554		2,299		1,340		—		11,826
Total 1-4 family properties	199,249		95,798		75,087		89,704		40,069		99,791		28,997		—		628,695
Land and development
Pass	84,985		173,302		83,734		92,911		12,249		76,380		53,250		—		576,811
Special Mention	857		1,995		2,866		282		—		1,332		636		—		7,968
Substandard(1)	1,229		425		4,664		915		136		1,485		—		—		8,854
Total land and development	87,071		175,722		91,264		94,108		12,385		79,197		53,886		—		593,633
Total commercial real estate	1,344,249		2,469,117		2,366,966		1,431,516		696,471		1,649,986		367,402		—		10,325,707

	December 31, 2020
	Term Loans Amortized Cost Basis by Origination Year												Revolving Loans
(in thousands)	2020		2019		2018		2017		2016		Prior		Amortized Cost Basis		Converted to Term Loans		Total
Consumer mortgages
Pass	1,871,512		874,769		425,711		678,255		685,810		965,382		1,040		—		5,502,479
Substandard(1)	33		961		748		889		866		7,224		—		—		10,721
Loss(3)	—		—		—		—		—		291		—		—		291
Total consumer mortgages	1,871,545		875,730		426,459		679,144		686,676		972,897		1,040		—		5,513,491
Home equity lines
Pass	—		—		—		—		—		—		1,429,755		90,832		1,520,587
Substandard(1)	—		—		—		—		—		—		9,698		5,996		15,694
Doubtful(2)	—		—		—		—		—		—		—		19		19
Loss(3)	—		—		—		—		—		—		1,283		143		1,426
Total home equity lines	—		—		—		—		—		—		1,440,736		96,990		1,537,726
Credit cards
Pass	—		—		—		—		—		—		279,142		—		279,142
Substandard(1)	—		—		—		—		—		—		595		—		595
Loss(4)	—		—		—		—		—		—		1,281		—		1,281
Total credit cards	—		—		—		—		—		—		281,018		—		281,018
Other consumer loans
Pass	252,160		190,820		89,187		100,459		80,365		61,040		297,637		—		1,071,668
Substandard(1)	19		762		262		1,195		121		585		227		—		3,171
Loss(4)	—		—		—		—		—		35		—		—		35
Total other consumer loans	252,179		191,582		89,449		101,654		80,486		61,660		297,864		—		1,074,874
Total consumer	2,123,724		1,067,312		515,908		780,798		767,162		1,034,557		2,020,658		96,990		8,407,109
Loans, net of deferred fees and costs	$	8,709,446	$	6,259,069	$	4,981,643	$	3,875,295	$	2,594,349	$	4,699,763	$	6,985,664	$	147,755	$	38,252,984

(1)    The majority of loans within Substandard risk grade are accruing loans at December 31, 2020.

(2)    Loans within Doubtful risk grade are on non-accrual status and generally have an ALL equal to 50% of the loan amount.

(3)    Loans within Loss risk grade are on non-accrual status and have an ALL equal to the full loan amount.

(4)    Represent amounts that were 120 days past due. These credits are downgraded to the Loss category with an ALL equal to the full loan amount and are generally charged off upon reaching 181 days past due in accordance with the FFIEC Retail Credit Classification Policy.

Financing Receivable, Allowance for Credit Loss

Rollforward of Allowance for Loan Losses

The following tables detail the changes in the ALL by loan segment for the three and six months ended June 30, 2021 and 2020.

	As Of and For the Three Months Ended June 30, 2021
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at March 31, 2021	$	254,777	$	113,812	$	194,625	$	563,214
Charge-offs	(18,729)		(3,839)		(8,285)		(30,853)
Recoveries	1,495		377		2,435		4,307
(Reversal of) provision for loan losses	17,395		(18,237)		(19,118)		(19,960)
Ending balance at June 30, 2021	$	254,938	$	92,113	$	169,657	$	516,708
	As Of and For the Three Months Ended June 30, 2020
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at March 31, 2020	$	216,950	$	107,117	$	169,385	$	493,452
Charge-offs	(23,245)		(689)		(6,844)		(30,778)
Recoveries	3,261		536		2,935		6,732
Provision for loan losses	32,949		64,562		21,731		119,242
Ending balance at June 30, 2020	$	229,915	$	171,526	$	187,207	$	588,648
	As Of and For the Six Months Ended June 30, 2021
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at December 31, 2020	$	229,555	$	130,742	$	245,439	$	605,736
Charge-offs	(28,146)		(14,158)		(13,874)		(56,178)
Recoveries	4,267		1,403		3,758		9,428
(Reversal of) provision for loan losses	49,262		(25,874)		(65,666)		(42,278)
Ending balance at June 30, 2021	$	254,938	$	92,113	$	169,657	$	516,708
	As Of and For the Six Months Ended June 30, 2020
(in thousands)	Commercial & Industrial		Commercial Real Estate		Consumer		Total
Allowance for loan losses:
Beginning balance at December 31, 2019	$	145,782	$	67,430	$	68,190	$	281,402
Impact from adoption of ASC 326	(2,310)		(651)		85,955		82,994
Beginning balance, after adoption of ASC 326, at January 1, 2020	$	143,472	$	66,779	$	154,145	$	364,396
Charge-offs	(38,130)		(1,706)		(14,816)		(54,652)
Recoveries	5,002		935		4,608		10,545
Provision for loan losses	119,571		105,518		43,270		268,359
Ending balance at June 30, 2020	$	229,915	$	171,526	$	187,207	$	588,648

Troubled Debt Restructurings

Information about Synovus' TDRs is presented in the following tables. Synovus began entering into loan modifications with borrowers in response to the COVID-19 pandemic, some of which have not been classified as TDRs, and therefore are not included in the discussion below. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" in Synovus' 2020 Form 10-K for information on Synovus' loan modifications due to COVID-19. The following tables represent, by concession type, the post-modification balance for loans modified or renewed during the three and six months ended June 30, 2021 and 2020 that were reported as accruing or non-accruing TDRs.

TDRs by Concession Type
	Three Months Ended June 30, 2021
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	18	$	1,770	$	1,174	$	2,944
Owner-occupied	5	1,155		—		1,155
Total commercial and industrial	23	2,925		1,174		4,099
Investment properties	1	419		—		419
1-4 family properties	2	158		—		158
Land and development	1	366		—		366
Total commercial real estate	4	943		—		943
Consumer mortgages	2	331		—		331
Home equity lines	14	900		96		996
Other consumer loans	13	187		245		432
Total consumer	29	1,418		341		1,759
Total TDRs	56	$	5,286	$	1,515	$	6,801	(2)
	Three Months Ended June 30, 2020
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	40	$	1,503	$	2,000	$	3,503
Owner-occupied	7	453		1,434		1,887
Total commercial and industrial	47	1,956		3,434		5,390
Investment properties	2	5,599		—		5,599
1-4 family properties	4	69		549		618
Land and development	1	91		—		91
Total commercial real estate	7	5,759		549		6,308
Consumer mortgages	10	556		1,482		2,038
Home equity lines	14	181		918		1,099
Other consumer loans	18	19		798		817
Total consumer	42	756		3,198		3,954
Total TDRs	96	$	8,471	$	7,181	$	15,652	(3)

(1)    Other concessions generally include term extensions, interest only payments for a period of time, or principal forgiveness, but there was no principal forgiveness for the three months ending June 30, 2021 and 2020.

(2)    No net charge-offs were recorded during the three months ended June 30, 2021.

(3)    No net charge-offs were recorded during the three months ended June 30, 2020.

	Six Months Ended June 30, 2021
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	58	$	5,002	$	3,737	$	8,739
Owner-occupied	10	2,409		399		2,808
Total commercial and industrial	68	7,411		4,136		11,547
Investment properties	6	2,402		—		2,402
1-4 family properties	7	621		39		660
Land and development	2	366		43		409
Total commercial real estate	15	3,389		82		3,471
Consumer mortgages	2	331		—		331
Home equity lines	27	1,487		258		1,745
Other consumer loans	86	316		4,864		5,180
Total consumer	115	2,134		5,122		7,256
Total TDRs	198	$	12,934	$	9,340	$	22,274	(2)
	Six Months Ended June 30, 2020
(in thousands, except contract data)	Number of Contracts	Below Market Interest Rate		Other Concessions(1)		Total
Commercial, financial and agricultural	76	$	5,226	$	4,011	$	9,237
Owner-occupied	12	1,821		1,530		3,351
Total commercial and industrial	88	7,047		5,541		12,588
Investment properties	4	28,669		—		28,669
1-4 family properties	10	793		991		1,784
Land and development	2	541		—		541
Total commercial real estate	16	30,003		991		30,994
Consumer mortgages	16	1,072		2,566		3,638
Home equity lines	33	455		1,882		2,337
Other consumer loans	47	97		2,694		2,791
Total consumer	96	1,624		7,142		8,766
Total TDRs	200	$	38,674	$	13,674	$	52,348	(3)

(1)    Other concessions generally include term extensions, interest only payments for a period of time, or principal forgiveness, but there was no principal forgiveness for the six months ending June 30, 2021 and 2020.

(2)    No net charge-offs were recorded during the six months ended June 30, 2021.

(3)    No net charge-offs were recorded during the six months ended June 30, 2020.

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Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill allocated to each reporting unit at June 30, 2021 and December 31, 2020 is presented as follows:

(in thousands)	June 30, 2021		December 31, 2020
Community Banking Reporting Unit	$	256,323	$	256,323
Wholesale Banking Reporting Unit	171,636		171,636
Consumer Mortgage Reporting Unit	—		—
Wealth Management Reporting Unit	24,431		24,431
Total Goodwill	$	452,390	$	452,390

The following table presents changes in the carrying amount of goodwill for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Balance at beginning of period	$	452,390	$	497,267	$	452,390	$	497,267
Changes during the period from:
Other	—		—		—		—
Balance at end of period	$	452,390	$	497,267	$	452,390	$	497,267

Schedule of Other Intangible Assets

The following table shows the gross carrying amount and accumulated amortization of other intangible assets as of June 30, 2021 and December 31, 2020, which primarily consist of core deposit intangible assets. The CDI is being amortized over its estimated useful life of approximately ten years utilizing an accelerated method. Aggregate other intangible assets amortization expense for the three and six months ended June 30, 2021 was $2.4 million and $4.8 million, respectively. Aggregate other intangible assets amortization expense for the three and six months ended June 30, 2020 was $2.6 million and $5.3 million, respectively.

(in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
June 30, 2021
CDI	$	57,400	$	(24,003)	$	33,397
Other	12,500		(5,543)		6,957
Total other intangible assets	$	69,900	$	(29,546)	$	40,354
December 31, 2020
CDI	$	57,400	$	(19,829)	$	37,571
Other	12,500		(4,959)		7,541
Total other intangible assets	$	69,900	$	(24,788)	$	45,112

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Shareholders' Equity and Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)

The following tables illustrate activity within the balances in accumulated other comprehensive income (loss) by component for the three and six months ended June 30, 2021 and 2020.

Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)
(in thousands)	Net unrealized gains (losses) on investment securities available for sale(1)		Net unrealized gains (losses) on cash flow hedges(1)		Post-retirement unfunded health benefit		Total
Balance at March 31, 2021	$	(15,316)	$	30,594	$	—	$	15,278
Other comprehensive income (loss) before reclassifications	34,617		(1,437)		—		33,180
Amounts reclassified from AOCI	—		(2,732)		—		(2,732)
Net current period other comprehensive income (loss)	34,617		(4,169)		—		30,448
Balance at June 30, 2021	$	19,301	$	26,425	$	—	$	45,726
Balance at March, 31, 2020	$	194,524	$	61,925	$	462	$	256,911
Other comprehensive income (loss) before reclassifications	(8,847)		6,538		—		(2,309)
Amounts reclassified from AOCI	(51,432)		(200)		—		(51,632)
Net current period other comprehensive income (loss)	(60,279)		6,338		—		(53,941)
Balance at June 30, 2020	$	134,245	$	68,263	$	462	$	202,970
Balance, December 31, 2020	$	105,669	$	52,966	$	—	$	158,635
Other comprehensive income (loss) before reclassifications	(87,843)		(22,620)		—		(110,463)
Amounts reclassified from AOCI	1,475		(3,921)		—		(2,446)
Net current period other comprehensive income (loss)	(86,368)		(26,541)		—		(112,909)
Balance at June 30, 2021	$	19,301	$	26,425	$	—	$	45,726
Balance, December 31, 2019	$	83,666	$	(18,487)	$	462	$	65,641
Other comprehensive income (loss) before reclassifications	108,484		87,039		—		195,523
Amounts reclassified from AOCI	(57,905)		(289)		—		(58,194)
Net current period other comprehensive income (loss)	50,579		86,750		—		137,329
Balance at June 30, 2020	$	134,245	$	68,263	$	462	$	202,970

(1)    For all periods presented, the ending balance in net unrealized gains (losses) on investment securities available for sale and cash flow hedges includes unrealized losses of $13.3 million and $12.1 million, respectively, related to residual tax effects remaining in OCI due to previously established deferred tax asset valuation allowances in 2010 and 2011. In accordance with ASC 740-20-45-11(b), under the portfolio approach, these unrealized losses are realized at the time the entire portfolio is sold or disposed.

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Fair Value Accounting (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Financial Instruments Measured at Fair Value on Recurring Basis

The following table presents assets and liabilities measured at estimated fair value on a recurring basis.

	June 30, 2021								December 31, 2020
(in thousands)	Level 1		Level 2		Level 3		Total Estimated Fair Value		Level 1		Level 2		Level 3		Total Estimated Fair Value
Assets
Trading securities:
Mortgage-backed securities issued by U.S. Government agencies	$	—	$	—	$	—	$	—	$	—	$	10,185	$	—	$	10,185
Collateralized mortgage obligations issued by U.S. Government sponsored enterprises	—		265		—		265		—		158		—		158
Other mortgage-backed securities	—		282		—		282		—		178		—		178
State and municipal securities	—		1,495		—		1,495		—		176		—		176
Asset-backed securities	—		2,145		—		2,145		—		183		—		183
Total trading securities	$	—	$	4,187	$	—	$	4,187	$	—	$	10,880	$	—	$	10,880
Investment securities available for sale:
U.S. Treasury securities	$	118,231	$	—	$	—	$	118,231	$	20,257	$	—	$	—	$	20,257
U.S. Government agency securities	—		56,115		—		56,115		—		82,320		—		82,320
Mortgage-backed securities issued by U.S. Government agencies	—		976,114		—		976,114		—		1,218,017		—		1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises	—		6,708,415		—		6,708,415		—		5,000,046		—		5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises	—		1,104,046		—		1,104,046		—		1,250,377		—		1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises	—		460,542		—		460,542		—		370,921		—		370,921
Corporate debt securities and other debt securities	—		18,707		—		18,707		—		18,479		2,021		20,500
Total investment securities available for sale	$	118,231	$	9,323,939	$	—	$	9,442,170	$	20,257	$	7,940,160	$	2,021	$	7,962,438
Mortgage loans held for sale	$	—	$	202,216	$	—	$	202,216	$	—	$	216,647	$	—	$	216,647
Private equity investments	—		—		1,026		1,026		—		—		1,021		1,021
Mutual funds and mutual funds held in rabbi trusts	41,710		—		—		41,710		37,650		—		—		37,650
GGL/SBA loans servicing asset	—		—		3,321		3,321		—		—		3,258		3,258
Derivative assets	—		279,454		—		279,454		—		401,295		—		401,295
Liabilities
Trading liability for short positions	—		—		—		—		—		7,717		—		7,717
Earnout liability	—		—		6,427		6,427		—		—		5,677		5,677
Derivative liabilities	—		113,708		1,473		115,181		—		155,119		2,048		157,167

Schedule of Mortgage Loans Held for Sale and Changes in Fair Value Included in Consolidated Statements of Income

The following table summarizes the difference between the fair value and the UPB of mortgage loans held for sale and the changes in fair value of these loans. An immaterial portion of these changes in fair value was attributable to changes in instrument-specific credit risk.

Mortgage Loans Held for Sale
(in thousands)	As of June 30, 2021		As of December 31, 2020
Fair value	$	202,216	$	216,647
Unpaid principal balance	196,399		210,292
Fair value less aggregate unpaid principal balance	$	5,817	$	6,355

Changes in Fair Value Included in Net Income	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Mortgage loans held for sale	$	4,094	$	5,365	$	(538)	$	5,984

Changes in Level 3 Fair Value Measurements

	Three Months Ended June 30, 2021
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	—	$	1,053	$	3,305	$	(5,677)	$	(1,768)
Total gains (losses) realized/unrealized:
Included in earnings	—		(27)		(252)		(750)		—
Additions	—		—		268		—		—
Settlements	—		—		—		—		295
Ending balance	$	—	$	1,026	$	3,321	$	(6,427)	$	(1,473)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2021	$	—	$	(27)	$	—	$	(750)	$	—
	Three Months Ended June 30, 2020
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	1,562	$	3,255	$	3,149	$	(11,016)	$	(2,050)
Total gains (losses) realized/unrealized:
Included in earnings	—		(2,557)		(291)		(4,908)		—
Unrealized gains (losses) included in OCI	100		—		—		—		—
Additions	—		—		161		—		—
Settlements	—		—		—		—		295
Ending balance	$	1,662	$	698	$	3,019	$	(15,924)	$	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2020	$	—	$	(2,557)	$	—	$	(4,908)	$	—

	Six Months Ended June 30, 2021
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	2,021	$	1,021	$	3,258	$	(5,677)	$	(2,048)
Total gains (losses) realized/unrealized:
Included in earnings			5		(430)		(750)		—
Sales	(2,021)		—		—		—		—
Additions	—		—		493		—		—
Settlements	—		—		—		—		575
Ending balance	$	—	$	1,026	$	3,321	$	(6,427)	$	(1,473)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2021	$	—	$	5	$	—	$	(750)	$	—
	Six Months Ended June 30, 2020
(in thousands)	Investment Securities Available for Sale		Private Equity Investments		GGL / SBA Loans Servicing Asset		Earnout Liability		Visa Derivative
Beginning balance	$	2,105	$	3,887	$	3,040	$	(11,016)	$	(2,339)
Total (losses) gains realized/unrealized:
Included in earnings	—		(3,189)		(555)		(4,908)		—
Unrealized gains (losses) included in OCI	(443)		—		—		—		—
Additions	—		—		534		—		—
Settlements	—		—		—		—		584
Ending balance	$	1,662	$	698	$	3,019	$	(15,924)	$	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gains/(losses) relating to assets/liabilities still held at June 30, 2020	$	—	$	(3,189)	$	—	$	(4,908)	$	—

Assets Measured at Fair Value on Non-Recurring Basis

The following table presents assets measured at fair value on a non-recurring basis as of the dates indicated for which there was a fair value adjustment.

	June 30, 2021								June 30, 2020
(in thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Loans(1)	$	—	$	—	$	29,201	$	29,201	$	—	$	—	$	21,138	$	21,138
Other real estate	—		—		42		42		—		—		5,902		5,902
MPS receivable	—		—		—		—		—		—		18,202		18,202
Other assets held for sale	—		—		1,170		1,170		—		—		1,634		1,634

(1)    Collateral-dependent loans that were written down to fair value of collateral.

Fair Value Adjustments Recognized in Earnings for Assets Measured at Fair Value on a Non-recurring Basis

The following table presents fair value adjustments recognized in earnings for the three and six months ended June 30, 2021 and 2020 for assets measured at fair value on a non-recurring basis still held at period-end.

	Three Months Ended June 30,				Six Months Ended June 30,				Location in Consolidated Statements of Income
(in thousands)	2021		2020		2021		2020
Loans(1)	$	13,476	$	14,950	$	13,504	$	14,950	Provision for credit losses
Other real estate	2		1,228		2		1,228		Other operating expenses
MPS receivable	—		—		—		2,663		Other operating expenses
Other assets held for sale	76		729		76		2,120		Other operating expenses

(1) Collateral-dependent loans that were written down to fair value of collateral.

Carrying and Estimated Fair Values of Financial Instruments Carried on Balance Sheet

The following tables present the carrying and estimated fair values of financial instruments at June 30, 2021 and December 31, 2020. The fair values represent management’s best estimates based on a range of methodologies and assumptions. See "Part II - Item 8. Financial Statements and Supplementary Data - Note 1 - Summary of Significant Accounting Policies" to the consolidated financial statements of Synovus' 2020 Form 10-K for a description of how fair value measurements are determined.

	June 30, 2021
(in thousands)	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	$	3,262,676	$	3,262,676	$	3,262,676	$	—	$	—
Trading securities	4,187		4,187		—		4,187		—
Investment securities available for sale	9,442,170		9,442,170		118,231		9,323,939		—
Loans held for sale	750,916		751,632		—		202,216		549,416
Private equity investments	1,026		1,026		—		—		1,026
Mutual funds and mutual funds held in rabbi trusts	41,710		41,710		41,710		—		—
Loans, net	37,719,310		37,743,546		—		—		37,743,546
GGL/SBA loans servicing asset	3,321		3,321		—		—		3,321
Derivative assets	279,454		279,454		—		279,454		—
Financial liabilities
Non-interest-bearing deposits	$	15,345,629	$	15,345,629	$	—	$	15,345,629	$	—
Non-time interest-bearing deposits	27,181,793		27,181,793		—		27,181,793		—
Time deposits	4,644,540		4,663,354		—		4,663,354		—
Total deposits	$	47,171,962	$	47,190,776	$	—	$	47,190,776	$	—
Federal funds purchased and securities sold under repurchase agreements	194,786		194,786		194,786		—		—
Long-term debt	1,203,293		1,261,642		—		1,261,642		—
Earnout liability	6,427		6,427		—		—		6,427
Derivative liabilities	115,181		115,181		—		113,708		1,473

	December 31, 2020
(in thousands)	Carrying Value		Fair Value		Level 1		Level 2		Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	$	4,252,917	$	4,252,917	$	4,252,917	$	—	$	—
Trading securities	10,880		10,880		—		10,880		—
Investment securities available for sale	7,962,438		7,962,438		20,257		7,940,160		2,021
Loans held for sale	760,123		760,939		—		216,647		544,292
Private equity investments	1,021		1,021		—		—		1,021
Mutual funds and mutual funds held in rabbi trusts	37,650		37,650		37,650		—		—
Loans, net	37,647,248		37,605,881		—		—		37,605,881
GGL/SBA loans servicing asset	3,258		3,258		—		—		3,258
Derivative assets	401,295		401,295		—		401,295		—
Financial liabilities
Non-interest-bearing deposits	$	13,477,854	$	13,477,854	$	—	$	13,477,854	$	—
Non-time interest-bearing deposits	27,265,521		27,265,521		—		27,265,521		—
Time deposits	5,948,196		5,970,146		—		5,970,146		—
Total deposits	$	46,691,571	$	46,713,521	$	—	$	46,713,521	$	—
Federal funds purchased and securities sold under repurchase agreements	227,922		227,922		227,922		—		—
Trading liability for short positions	7,717		7,717		—		7,717		—
Long-term debt	1,202,494		1,266,825		—		1,266,825		—
Earnout liability	5,677		5,677		—		—		5,677
Derivative liabilities	157,167		157,167		—		155,119		2,048

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Derivative Instruments and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2021

Summary of Derivative Instruments [Abstract]

Impact of Derivatives on Balance Sheet

The following table reflects the notional amount and fair value of derivative instruments included on the consolidated balance sheets.

	June 30, 2021						December 31, 2020
			Fair Value						Fair Value
(in thousands)	Notional Amount		Derivative Assets (1)		Derivative Liabilities (2)		Notional Amount		Derivative Assets (1)		Derivative Liabilities (2)
Derivatives in cash flow hedging relationships:
Interest rate contracts	$	3,250,000	$	49,153	$	89	$	3,000,000	$	80,802	$	—
Total derivatives designated as hedging instruments			$	49,153	$	89			$	80,802	$	—
Derivatives not designated   as hedging instruments:
Interest rate contracts(3)	$	9,023,627	$	225,813	$	113,154	$	8,784,141	$	314,234	$	153,204
Mortgage derivatives - interest rate lock commitments	198,775		4,488		—		306,138		6,259		—
Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans	194,000		—		343		230,500		—		1,611
Other contracts(4)	171,321		—		122		234,884		—		304
Visa derivative	—		—		1,473		—		—		2,048
Total derivatives not designated as hedging instruments			$	230,301	$	115,092			$	320,493	$	157,167

(1)    Derivative assets are recorded in other assets on the consolidated balance sheets.

(2)    Derivative liabilities are recorded in other liabilities on the consolidated balance sheets.

(3)    Includes interest rate contracts for customer swaps and offsetting positions, net of variation margin payments.

(4)    Includes risk participation agreements sold. Additionally, the notional amount of risk participation agreements purchased was $6.3 million and $2.6 million at June 30, 2021 and December 31, 2020, respectively.

Schedule of Derivative Instruments, Effect on Hedging

The following table presents the effect of hedging derivative instruments on the consolidated statements of income and the total amounts for the respective line item affected for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Total amounts presented in the consolidated statements of income in interest income on loans	$	7,605	$	5,261	$	15,947	$	5,086
Gain/loss on cash flow hedging relationships:(1)
Interest rate swaps:
Realized gains (losses) reclassified from AOCI, pre-tax, to interest income on loans	3,657		270		5,256		390
Pre-tax income recognized on cash flow hedges	$	3,657	$	270	$	5,256	$	390

(1)    See "Part I - Item 1. Financial Statements and Supplementary Data - Note 5 - Shareholders' Equity and Other Comprehensive Income (Loss) in this Report for additional information.

Effect of Fair Value Hedges on Consolidated Statements of Income

The pre-tax effect of changes in fair value from derivative instruments not designated as hedging instruments on the consolidated statements of income for the three and six months ended June 30, 2021 and 2020 is presented below.

		Gain (Loss) Recognized in Consolidated Statements of Income
		Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	Location in Consolidated Statements of Income	2021		2020		2021		2020
Derivatives not designated   as hedging instruments:
Interest rate contracts(1)	Capital markets income	$	(637)	$	653	$	310	$	49
Other contracts(2)	Capital markets income	(19)		4		182		(333)
Mortgage derivatives - interest rate lock commitments	Mortgage banking income	(53)		(634)		(1,772)		6,390
Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans	Mortgage banking income	(4,974)		3,701		1,268		(1,228)
Total derivatives not designated as hedging instruments		$	(5,683)	$	3,724	$	(12)	$	4,878

(1)    Gain (loss) represents net fair value adjustments (including credit related adjustments) for customer swaps and offsetting positions. Additionally, losses related to termination of customer swaps of $2.5 million were recorded in other non-interest expense during the first quarter of 2020.

(2)    Includes risk participation agreements sold.

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Net Income Per Common Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

The following table displays a reconciliation of the information used in calculating basic and diluted net income per common share for the three and six months ended June 30, 2021 and 2020. Diluted net income per common share incorporates the potential impact of contingently issuable shares, including awards which require future service as a condition of delivery of the underlying common stock.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share data)	2021		2020		2021		2020
Basic Net Income Per Common Share:
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Weighted average common shares outstanding	148,113		147,288		148,289		147,300
Net income per common share, basic	$	1.20	$	0.58	$	2.41	$	0.78
Diluted Net Income Per Common Share:
Net income available to common shareholders	$	177,909	$	84,901	$	356,711	$	115,131
Weighted average common shares outstanding	148,113		147,288		148,289		147,300
Effect of dilutive outstanding equity-based awards, warrants, and earnout payments	1,634		445		1,475		767
Weighted average diluted common shares	149,747		147,733		149,764		148,067
Net income per common share, diluted	$	1.19	$	0.57	$	2.38	$	0.78

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Loan Commitments and Letters of Credit

(in thousands)	June 30, 2021		December 31, 2020
Letters of credit*	$	185,433	$	190,562
Commitments to fund commercial and industrial loans	8,617,252		8,200,608
Commitments to fund commercial real estate, construction, and land development loans	3,286,077		3,290,041
Commitments under home equity lines of credit	1,681,782		1,602,831
Unused credit card lines	1,002,367		1,012,313
Other loan commitments	566,590		472,233
Total letters of credit and unfunded lending commitments	$	15,339,501	$	14,768,588

LIHTC, solar energy tax credit, new market tax credit, and other CRA partnerships:
Carrying amount included in other assets	$	350,692	$	262,855
Amount of future funding commitments included in carrying amount	198,575		133,946
Permanent and short-term construction loans and letter of credit commitments	200,476		84,552
Funded portion of permanent and short-term loans and letters of credit	37,362		9,762

*    Represent the contractual amount net of risk participations purchased of $28.5 million and $30.2 million at June 30, 2021 and December 31, 2020, respectively.

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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting

The following tables present certain financial information for each reportable business segment for the three and six months ended June 30, 2021 and 2020. The application and development of management reporting methodologies is a dynamic process and is subject to periodic enhancements. As these enhancements are made, financial results presented by each reportable business segment may be periodically revised.

	Three Months Ended June 30, 2021
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	202,881	$	136,126	$	18,935	$	23,918	$	381,860
Non-interest revenue	32,212		7,000		52,345		15,530		107,087
Non-interest expense	69,120		21,290		46,773		133,348		270,531
Pre-provision net revenue	$	165,973	$	121,836	$	24,507	$	(93,900)	$	218,416

	Three Months Ended June 30, 2020
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	219,097	$	145,016	$	20,069	$	(7,616)	$	376,566
Non-interest revenue	23,747		5,682		52,976		91,079		173,484
Non-interest expense	74,764		22,934		48,394		138,049		284,141
Pre-provision net revenue	$	168,080	$	127,764	$	24,651	$	(54,586)	$	265,909

	Six Months Ended June 30, 2021
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	409,123	$	270,200	$	39,930	$	36,463	$	755,716
Non-interest revenue	61,966		14,319		110,928		30,830		218,043
Non-interest expense	137,178		42,014		94,447		264,026		537,665
Pre-provision net revenue	$	333,911	$	242,505	$	56,411	$	(196,733)	$	436,094

	Six Months Ended June 30, 2020
(in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Net interest income	$	415,601	$	268,186	$	37,453	$	28,586	$	749,826
Non-interest revenue	54,071		15,009		100,360		107,901		277,341
Non-interest expense	148,737		43,647		91,785		276,252		560,421
Pre-provision net revenue	$	320,935	$	239,548	$	46,028	$	(139,765)	$	466,746

	June 30, 2021
(dollars in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Loans, net of deferred fees and costs	$	10,730,544	$	19,369,933	$	5,078,318	$	3,057,223	$	38,236,018
Total deposits	$	31,317,490	$	10,983,120	$	737,202	$	4,134,150	$	47,171,962
Total full-time equivalent employees	2,114		288		809		1,772		4,983
	December 31, 2020
(dollars in thousands)	Community Banking		Wholesale Banking		Financial Management Services		Treasury and Corporate Other		Synovus Consolidated
Loans, net of deferred fees and costs	$	11,171,013	$	18,810,729	$	5,370,790	$	2,900,452	$	38,252,984
Total deposits	$	29,141,242	$	11,958,105	$	739,200	$	4,853,024	$	46,691,571
Total full-time equivalent employees	2,199		285		832		1,818		5,134

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Basis of Presentation and Accounting Policies (Narrative) (Details)	Jun. 30, 2021 branch aTM
Accounting Policies [Abstract]
Number of branches | branch	285
Number of ATMs | aTM	386

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Investment Securities Available for Sale (Summary of Available for Sale Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 9,398,505	$ 7,801,864
Gross Unrealized Gains	103,007	177,243
Gross Unrealized Losses	(59,342)	(16,669)
Fair Value	9,442,170	7,962,438
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	120,119	20,257
Gross Unrealized Gains	355	0
Gross Unrealized Losses	(2,243)	0
Fair Value	118,231	20,257
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	54,161	79,638
Gross Unrealized Gains	1,954	2,682
Gross Unrealized Losses	0	0
Fair Value	56,115	82,320
Mortgage-backed securities issued by U.S. Government agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	981,107	1,216,012
Gross Unrealized Gains	2,084	7,930
Gross Unrealized Losses	(7,077)	(5,925)
Fair Value	976,114	1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,670,497	4,865,858
Gross Unrealized Gains	75,773	134,188
Gross Unrealized Losses	(37,855)	0
Fair Value	6,708,415	5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,103,547	1,245,644
Gross Unrealized Gains	9,644	15,309
Gross Unrealized Losses	(9,145)	(10,576)
Fair Value	1,104,046	1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	450,814	354,244
Gross Unrealized Gains	12,750	16,677
Gross Unrealized Losses	(3,022)	0
Fair Value	460,542	370,921
Corporate debt securities and other debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	18,260	20,211
Gross Unrealized Gains	447	457
Gross Unrealized Losses	0	(168)
Fair Value	$ 18,707	$ 20,500

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Investment Securities Available for Sale (Narrative) (Details)	Jun. 30, 2021 USD ($) security	Dec. 31, 2020 USD ($)
Financing Receivable, Impaired [Line Items]
Investment securities in a loss position for less than twelve months | security	91
Investment securities in a loss position for twelve months or longer | security	8
Allowance for credit loss | $	$ 0
Collateral Pledged
Financing Receivable, Impaired [Line Items]
Pledged to secure deposits | $	$ 3,730,000,000	$ 3,840,000,000

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Investment Securities Available for Sale (Schedule of Gross Unrealized Losses on Investment Securities and Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 4,315,642	$ 1,379,662
Less than 12 Months, Gross Unrealized Losses	(55,229)	(16,669)
12 Months or Longer, Fair Value	294,264	0
12 Months or Longer, Gross Unrealized Losses	(4,113)	0
Total, Fair Value	4,609,906	1,379,662
Total, Gross Unrealized Losses	(59,342)	(16,669)
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	47,586
Less than 12 Months, Gross Unrealized Losses	(2,243)
12 Months or Longer, Fair Value	0
12 Months or Longer, Gross Unrealized Losses	0
Total, Fair Value	47,586
Total, Gross Unrealized Losses	(2,243)
Mortgage-backed securities issued by U.S. Government agencies
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	421,704	566,896
Less than 12 Months, Gross Unrealized Losses	(5,251)	(5,925)
12 Months or Longer, Fair Value	153,330	0
12 Months or Longer, Gross Unrealized Losses	(1,826)	0
Total, Fair Value	575,034	566,896
Total, Gross Unrealized Losses	(7,077)	(5,925)
Mortgage-backed securities issued by U.S. Government sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	3,156,297
Less than 12 Months, Gross Unrealized Losses	(37,855)
12 Months or Longer, Fair Value	0
12 Months or Longer, Gross Unrealized Losses	0
Total, Fair Value	3,156,297
Total, Gross Unrealized Losses	(37,855)
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	524,044	803,429
Less than 12 Months, Gross Unrealized Losses	(6,858)	(10,576)
12 Months or Longer, Fair Value	140,934	0
12 Months or Longer, Gross Unrealized Losses	(2,287)	0
Total, Fair Value	664,978	803,429
Total, Gross Unrealized Losses	(9,145)	(10,576)
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	166,011
Less than 12 Months, Gross Unrealized Losses	(3,022)
12 Months or Longer, Fair Value	0
12 Months or Longer, Gross Unrealized Losses	0
Total, Fair Value	166,011
Total, Gross Unrealized Losses	$ (3,022)
Corporate debt securities and other debt securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value		9,337
Less than 12 Months, Gross Unrealized Losses		(168)
12 Months or Longer, Fair Value		0
12 Months or Longer, Gross Unrealized Losses		0
Total, Fair Value		9,337
Total, Gross Unrealized Losses		$ (168)

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Investment Securities Available for Sale (Amortized Cost and Estimated Fair Value by Contractual Maturity of Investment Securities Available for Sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Amortized Cost
Within One year, Amortized Cost	$ 20,795
1 to 5 Years, Amortized Cost	121,452
5 to 10 Years, Amortized Cost	467,453
More Than 10 years, Amortized Cost	8,788,805
Amortized Cost	9,398,505	$ 7,801,864
Fair Value
Within One Year, Fair Value	20,798
1 to 5 Years, Fair Value	125,798
5 to 10 Years, Fair Value	471,810
More Than 10 years, Fair Value	8,823,764
Total, Fair Value	9,442,170	7,962,438
U.S. Treasury securities
Amortized Cost
Within One year, Amortized Cost	20,260
1 to 5 Years, Amortized Cost	0
5 to 10 Years, Amortized Cost	99,859
More Than 10 years, Amortized Cost	0
Amortized Cost	120,119	20,257
Fair Value
Within One Year, Fair Value	20,260
1 to 5 Years, Fair Value	0
5 to 10 Years, Fair Value	97,971
More Than 10 years, Fair Value	0
Total, Fair Value	118,231	20,257
U.S. Government agency securities
Amortized Cost
Within One year, Amortized Cost	430
1 to 5 Years, Amortized Cost	1,595
5 to 10 Years, Amortized Cost	52,136
More Than 10 years, Amortized Cost	0
Amortized Cost	54,161	79,638
Fair Value
Within One Year, Fair Value	432
1 to 5 Years, Fair Value	1,609
5 to 10 Years, Fair Value	54,074
More Than 10 years, Fair Value	0
Total, Fair Value	56,115	82,320
Mortgage-backed securities issued by U.S. Government agencies
Amortized Cost
Within One year, Amortized Cost	0
1 to 5 Years, Amortized Cost	1,081
5 to 10 Years, Amortized Cost	151
More Than 10 years, Amortized Cost	979,875
Amortized Cost	981,107	1,216,012
Fair Value
Within One Year, Fair Value	0
1 to 5 Years, Fair Value	1,124
5 to 10 Years, Fair Value	158
More Than 10 years, Fair Value	974,832
Total, Fair Value	976,114	1,218,017
Mortgage-backed securities issued by U.S. Government sponsored enterprises
Amortized Cost
Within One year, Amortized Cost	105
1 to 5 Years, Amortized Cost	0
5 to 10 Years, Amortized Cost	61,715
More Than 10 years, Amortized Cost	6,608,677
Amortized Cost	6,670,497	4,865,858
Fair Value
Within One Year, Fair Value	106
1 to 5 Years, Fair Value	0
5 to 10 Years, Fair Value	64,294
More Than 10 years, Fair Value	6,644,015
Total, Fair Value	6,708,415	5,000,046
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Amortized Cost
Within One year, Amortized Cost	0
1 to 5 Years, Amortized Cost	0
5 to 10 Years, Amortized Cost	185
More Than 10 years, Amortized Cost	1,103,362
Amortized Cost	1,103,547	1,245,644
Fair Value
Within One Year, Fair Value	0
1 to 5 Years, Fair Value	0
5 to 10 Years, Fair Value	192
More Than 10 years, Fair Value	1,103,854
Total, Fair Value	1,104,046	1,250,377
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Amortized Cost
Within One year, Amortized Cost	0
1 to 5 Years, Amortized Cost	109,272
5 to 10 Years, Amortized Cost	244,651
More Than 10 years, Amortized Cost	96,891
Amortized Cost	450,814	354,244
Fair Value
Within One Year, Fair Value	0
1 to 5 Years, Fair Value	113,193
5 to 10 Years, Fair Value	246,286
More Than 10 years, Fair Value	101,063
Total, Fair Value	460,542	370,921
Corporate debt securities and other debt securities
Amortized Cost
Within One year, Amortized Cost	0
1 to 5 Years, Amortized Cost	9,504
5 to 10 Years, Amortized Cost	8,756
More Than 10 years, Amortized Cost	0
Amortized Cost	18,260	20,211
Fair Value
Within One Year, Fair Value	0
1 to 5 Years, Fair Value	9,872
5 to 10 Years, Fair Value	8,835
More Than 10 years, Fair Value	0
Total, Fair Value	$ 18,707	$ 20,500

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Investment Securities Available for Sale (Summary of Sales Transactions in the Investment Securities Available for Sale Portfolio) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments [Abstract]
Proceeds from sales of investment securities available for sale	$ 0	$ 2,269,682	$ 223,977	$ 2,682,861
Gross realized gains on sales	0	75,105	0	83,839
Gross realized losses on sales	0	(5,696)	(1,990)	(5,695)
Investment securities gains (losses), net	$ 0	$ 69,409	$ (1,990)	$ 78,144

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Loans and Allowance for Loan Losses (Schedule of Current, Accruing Past Due and Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	$ 38,236,018	$ 38,252,984
Non-accrual	136,382	127,720
Non-accrual, without an allowance	24,646	23,359
Total commercial and industrial
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	19,150,133	19,520,168
Non-accrual	62,352	75,546
Non-accrual, without an allowance	21,746	21,859
Total commercial and industrial | Commercial, financial and agricultural
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	12,085,534	12,410,152
Non-accrual	49,197	55,527
Non-accrual, without an allowance	21,746	21,859
Total commercial and industrial | Owner-occupied
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	7,064,599	7,110,016
Non-accrual	13,155	20,019
Non-accrual, without an allowance	0	0
Total commercial real estate
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	10,361,051	10,325,707
Non-accrual	6,389	28,913
Non-accrual, without an allowance	2,900	1,500
Total commercial real estate | Investment properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	9,218,013	9,103,379
Non-accrual	2,367	24,631
Non-accrual, without an allowance	2,407	0
Total commercial real estate | 1-4 family properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	636,344	628,695
Non-accrual	1,982	2,383
Non-accrual, without an allowance	493	1,236
Total commercial real estate | Land and development
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	506,694	593,633
Non-accrual	2,040	1,899
Non-accrual, without an allowance	0	264
Total consumer
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	8,724,834	8,407,109
Non-accrual	67,641	23,261
Non-accrual, without an allowance	0	0
Total consumer | Consumer mortgages
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	5,200,762	5,513,491
Non-accrual	51,376	8,740
Non-accrual, without an allowance	0	0
Total consumer | Home equity lines
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,358,211	1,537,726
Non-accrual	8,938	12,145
Non-accrual, without an allowance	0	0
Total consumer | Credit cards
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	285,508	281,018
Non-accrual	0	0
Non-accrual, without an allowance	0	0
Total consumer | Other consumer loans
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,880,353	1,074,874
Non-accrual	7,327	2,376
Non-accrual, without an allowance	0	0
Current
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	38,025,669	38,054,556
Current | Total commercial and industrial
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	19,051,210	19,409,506
Current | Total commercial and industrial | Commercial, financial and agricultural
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	12,002,589	12,321,514
Current | Total commercial and industrial | Owner-occupied
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	7,048,621	7,087,992
Current | Total commercial real estate
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	10,342,458	10,288,383
Current | Total commercial real estate | Investment properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	9,205,776	9,075,843
Current | Total commercial real estate | 1-4 family properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	632,412	621,492
Current | Total commercial real estate | Land and development
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	504,270	591,048
Current | Total consumer
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	8,632,001	8,356,667
Current | Total consumer | Consumer mortgages
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	5,144,394	5,495,415
Current | Total consumer | Home equity lines
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,346,562	1,521,575
Current | Total consumer | Credit cards
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	282,361	276,778
Current | Total consumer | Other consumer loans
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,858,684	1,062,899
Accruing 30 to 89 Days Past Due
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	44,906	43,232
Accruing 30 to 89 Days Past Due | Total commercial and industrial
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	13,148	12,169
Accruing 30 to 89 Days Past Due | Total commercial and industrial | Commercial, financial and agricultural
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	11,161	10,256
Accruing 30 to 89 Days Past Due | Total commercial and industrial | Owner-occupied
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,987	1,913
Accruing 30 to 89 Days Past Due | Total commercial real estate
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	8,800	6,721
Accruing 30 to 89 Days Past Due | Total commercial real estate | Investment properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	7,461	2,751
Accruing 30 to 89 Days Past Due | Total commercial real estate | 1-4 family properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,076	3,548
Accruing 30 to 89 Days Past Due | Total commercial real estate | Land and development
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	263	422
Accruing 30 to 89 Days Past Due | Total consumer
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	22,958	24,342
Accruing 30 to 89 Days Past Due | Total consumer | Consumer mortgages
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	4,992	8,851
Accruing 30 to 89 Days Past Due | Total consumer | Home equity lines
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	2,711	4,006
Accruing 30 to 89 Days Past Due | Total consumer | Credit cards
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,524	2,363
Accruing 30 to 89 Days Past Due | Total consumer | Other consumer loans
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	13,731	9,122
Accruing 90 to 149 Days Past Due
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	4,415	4,117
Accruing 90 to 149 Days Past Due | Total commercial and industrial
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,677	1,088
Accruing 90 to 149 Days Past Due | Total commercial and industrial | Commercial, financial and agricultural
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	841	996
Accruing 90 to 149 Days Past Due | Total commercial and industrial | Owner-occupied
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	836	92
Accruing 90 to 149 Days Past Due | Total commercial real estate
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	504	190
Accruing 90 to 149 Days Past Due | Total commercial real estate | Investment properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	2	154
Accruing 90 to 149 Days Past Due | Total commercial real estate | 1-4 family properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	381	36
Accruing 90 to 149 Days Past Due | Total commercial real estate | Land and development
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	121	0
Accruing 90 to 149 Days Past Due | Total consumer
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	2,234	2,839
Accruing 90 to 149 Days Past Due | Total consumer | Consumer mortgages
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	0	485
Accruing 90 to 149 Days Past Due | Total consumer | Home equity lines
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	0	0
Accruing 90 to 149 Days Past Due | Total consumer | Credit cards
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,623	1,877
Accruing 90 to 149 Days Past Due | Total consumer | Other consumer loans
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	611	477
Total Accruing Past Due
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	49,321	47,349
Total Accruing Past Due | Total commercial and industrial
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	14,825	13,257
Total Accruing Past Due | Total commercial and industrial | Commercial, financial and agricultural
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	12,002	11,252
Total Accruing Past Due | Total commercial and industrial | Owner-occupied
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	2,823	2,005
Total Accruing Past Due | Total commercial real estate
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	9,304	6,911
Total Accruing Past Due | Total commercial real estate | Investment properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	7,463	2,905
Total Accruing Past Due | Total commercial real estate | 1-4 family properties
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	1,457	3,584
Total Accruing Past Due | Total commercial real estate | Land and development
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	384	422
Total Accruing Past Due | Total consumer
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	25,192	27,181
Total Accruing Past Due | Total consumer | Consumer mortgages
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	4,992	9,336
Total Accruing Past Due | Total consumer | Home equity lines
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	2,711	4,006
Total Accruing Past Due | Total consumer | Credit cards
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	3,147	4,240
Total Accruing Past Due | Total consumer | Other consumer loans
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Loans, net of deferred fees and costs	$ 14,342	$ 9,599

XML

Loans and Allowance for Loan Losses (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract	Jun. 30, 2021 USD ($) contract	Jun. 30, 2020 USD ($) contract	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, impaired, interest lost on nonaccrual loans	$ 2,600,000	$ 2,800,000	$ 6,000,000.0	$ 4,900,000
Interest income, cash basis method	538,000	484,000	1,200,000	1,400,000
Loans pledged as collateral	14,290,000,000		14,290,000,000			$ 15,050,000,000.00
Total loans	38,236,018,000		38,236,018,000			38,252,984,000
Allowance for loan losses	516,708,000	588,648,000	516,708,000	588,648,000	$ 563,214,000	605,736,000	$ 493,452,000	$ 281,402,000
Reserve for unfunded commitments	46,900,000		46,900,000
All financing receivable, allowance for credit loss	$ 563,600,000		563,600,000
Allowance for credit loss, decrease			$ (89,900,000)
ACL to loans ratio	1.47%		1.47%
Allowance for credit loss, reasonable and supportable forecast period			2 years
Allowance for credit loss, straight-line basis historical period			1 year
Downside bias	40.00%		40.00%
Estimated unemployment rate	4.50%		4.50%		5.70%
(Reversal of) provision for credit losses	$ (24,598,000)	141,851,000	$ (43,173,000)	300,573,000
Net chargeoff amount	26,500,000		46,800,000
Financing receivable, allowance for credit loss, period increase (decrease) from increase in size of loan profile	10,600,000		25,800,000
Financing receivable, purchase	434,600,000		1,040,000,000.00
Recorded investment	6,801,000	$ 15,652,000	22,274,000	$ 52,348,000
Commitments to land additional funds to TDRs	$ 0		$ 0			0
Troubled Debt Restructuring That Subsequently Defaults
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts | contract	5	1	5	4
Recorded investment	$ 172,000	$ 27,000	$ 172,000	$ 645,000
Total commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	19,150,133,000		19,150,133,000			$ 19,520,168,000
Recorded investment	4,099,000	$ 5,390,000	11,547,000	$ 12,588,000
Total commercial and industrial | Small Business Administration (SBA), CARES Act, Paycheck Protection Program
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,600,000,000		$ 1,600,000,000
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail loan substandard period (in days)			90 days
Loss and Charged Off
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retail loan charge off (in days)			120 days

XML

Loans and Allowance for Loan Losses (Loan Portfolio Credit Exposure) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 3,901,024	$ 8,709,446
2020	7,738,915	6,259,069
2019	5,918,165	4,981,643
2018	4,152,601	3,875,295
2017	3,160,321	2,594,349
Prior	6,023,378	4,699,763
Total loans	38,236,018	38,252,984
Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2,194,270	5,241,473
2020	3,578,550	2,722,640
2019	2,494,665	2,098,769
2018	1,908,622	1,662,981
2017	1,418,852	1,130,716
Prior	2,618,168	2,015,220
Total loans	19,150,133	19,520,168
Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	861,261	1,344,249
2020	1,549,991	2,469,117
2019	2,506,626	2,366,966
2018	1,856,836	1,431,516
2017	1,135,264	696,471
Prior	2,020,117	1,649,986
Total loans	10,361,051	10,325,707
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	845,493	2,123,724
2020	2,610,374	1,067,312
2019	916,874	515,908
2018	387,143	780,798
2017	606,205	767,162
Prior	1,385,093	1,034,557
Total loans	$ 8,724,834	8,407,109
Maximum
Financing Receivable, Credit Quality Indicator [Line Items]
Percent of loan amount	50.00%
Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 1,525,057	3,911,053
2020	2,276,839	1,414,417
2019	1,230,422	904,651
2018	792,774	640,754
2017	557,544	565,886
Prior	1,161,675	674,588
Total loans	12,085,534	12,410,152
Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	669,213	1,330,420
2020	1,301,711	1,308,223
2019	1,264,243	1,194,118
2018	1,115,848	1,022,227
2017	861,308	564,830
Prior	1,456,493	1,340,632
Total loans	7,064,599	7,110,016
Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	644,492	1,057,929
2020	1,344,084	2,197,597
2019	2,316,794	2,200,615
2018	1,716,075	1,247,704
2017	997,856	644,017
Prior	1,852,107	1,470,998
Total loans	9,218,013	9,103,379
1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	159,652	199,249
2020	136,794	95,798
2019	67,199	75,087
2018	60,833	89,704
2017	71,700	40,069
Prior	91,363	99,791
Total loans	636,344	628,695
Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	57,117	87,071
2020	69,113	175,722
2019	122,633	91,264
2018	79,928	94,108
2017	65,708	12,385
Prior	76,647	79,197
Total loans	506,694	593,633
Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	624,785	1,871,545
2020	1,736,088	875,730
2019	732,197	426,459
2018	317,614	679,144
2017	522,807	686,676
Prior	1,266,306	972,897
Total loans	5,200,762	5,513,491
Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	1,358,211	1,537,726
Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	285,508	281,018
Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	220,708	252,179
2020	874,286	191,582
2019	184,677	89,449
2018	69,529	101,654
2017	83,398	80,486
Prior	118,787	61,660
Total loans	1,880,353	1,074,874
Pass | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,515,420	3,819,048
2020	2,149,994	1,333,460
2019	1,144,130	847,283
2018	755,925	582,612
2017	519,704	551,413
Prior	1,118,928	633,871
Total loans	11,580,910	11,920,200
Pass | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	667,812	1,321,680
2020	1,293,871	1,275,435
2019	1,226,446	1,131,183
2018	1,041,975	982,056
2017	829,705	555,932
Prior	1,403,658	1,297,070
Total loans	6,851,070	6,912,922
Pass | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	637,057	1,055,440
2020	1,342,718	2,126,667
2019	2,226,278	1,999,345
2018	1,507,075	1,091,880
2017	872,163	483,780
Prior	1,606,709	1,301,088
Total loans	8,481,261	8,287,244
Pass | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	157,416	197,320
2020	136,528	95,145
2019	66,762	70,267
2018	55,745	88,454
2017	70,774	38,729
Prior	88,755	97,374
Total loans	624,185	614,946
Pass | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	57,117	84,985
2020	67,046	173,302
2019	120,637	83,734
2018	74,328	92,911
2017	64,803	12,249
Prior	72,639	76,380
Total loans	492,118	576,811
Pass | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	624,582	1,871,512
2020	1,735,940	874,769
2019	730,083	425,711
2018	303,577	678,255
2017	517,050	685,810
Prior	1,227,662	965,382
Total loans	5,139,859	5,502,479
Pass | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	1,342,201	1,520,587
Pass | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	283,887	279,142
Pass | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	220,495	252,160
2020	873,734	190,820
2019	182,445	89,187
2018	68,046	100,459
2017	80,624	80,365
Prior	118,009	61,040
Total loans	1,872,087	1,071,668
Special Mention | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,482	63,307
2020	67,377	40,618
2019	46,077	12,723
2018	11,516	22,070
2017	17,074	1,665
Prior	3,424	5,545
Total loans	226,107	207,158
Special Mention | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	680	6,170
2020	4,294	9,995
2019	11,397	10,682
2018	16,291	14,138
2017	3,326	1,582
Prior	22,395	13,768
Total loans	66,563	56,335
Special Mention | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	1,482
2020	1,032	66,160
2019	80,673	176,794
2018	152,823	136,004
2017	107,557	138,362
Prior	207,195	129,401
Total loans	606,484	703,643
Special Mention | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	491	402
2020	158	0
2019	0	508
2018	365	109
2017	0	786
Prior	248	118
Total loans	1,262	1,923
Special Mention | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	857
2020	834	1,995
2019	1,948	2,866
2018	2,369	282
2017	24	0
Prior	997	1,332
Total loans	6,172	7,968
Substandard | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	7,706	28,698
2020	58,956	36,618
2019	37,439	24,867
2018	12,201	36,072
2017	20,766	12,808
Prior	39,323	35,172
Total loans	261,359	259,247
Substandard | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	721	2,570
2020	3,546	22,793
2019	26,400	42,615
2018	51,240	26,033
2017	28,277	7,316
Prior	30,440	29,794
Total loans	140,624	131,121
Substandard | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	7,435	1,007
2020	334	4,770
2019	9,843	24,476
2018	56,177	19,820
2017	18,136	21,875
Prior	38,203	40,509
Total loans	130,268	112,492
Substandard | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	1,745	1,527
2020	108	653
2019	437	4,312
2018	4,723	1,141
2017	926	554
Prior	2,360	2,299
Total loans	10,897	11,826
Substandard | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	1,229
2020	1,233	425
2019	48	4,664
2018	3,231	915
2017	881	136
Prior	3,011	1,485
Total loans	8,404	8,854
Substandard | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	203	33
2020	148	961
2019	2,114	748
2018	14,037	889
2017	5,757	866
Prior	38,421	7,224
Total loans	60,680	10,721
Substandard | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	15,084	15,694
Substandard | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	409	595
Substandard | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	213	19
2020	552	762
2019	2,232	262
2018	1,483	1,195
2017	2,774	121
Prior	766	585
Total loans	8,254	3,171
Doubtful | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	449	0
2020	512	3,721
2019	2,776	19,778
2018	13,132	0
2017	0	0
Prior	0	0
Total loans	17,158	23,547
Doubtful | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	9,638
2018	6,342	0
2017	0	0
Prior	0	0
Total loans	6,342	9,638
Doubtful | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	18	19
Loss and Charged Off | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	223	291
Total loans	223	291
Loss and Charged Off | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	908	1,426
Loss and Charged Off | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	0	0
Total loans	1,212	1,281
Loss and Charged Off | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0	0
2020	0	0
2019	0	0
2018	0	0
2017	0	0
Prior	12	35
Total loans	12	35
Revolving Loans Amortized Cost Basis
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	7,212,003	6,985,664
Revolving Loans Amortized Cost Basis | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,890,304	4,597,604
Revolving Loans Amortized Cost Basis | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	430,956	367,402
Revolving Loans Amortized Cost Basis | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,890,743	2,020,658
Revolving Loans Amortized Cost Basis | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,494,521	4,248,038
Revolving Loans Amortized Cost Basis | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	395,783	349,566
Revolving Loans Amortized Cost Basis | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	346,605	284,519
Revolving Loans Amortized Cost Basis | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	48,803	28,997
Revolving Loans Amortized Cost Basis | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	35,548	53,886
Revolving Loans Amortized Cost Basis | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	965	1,040
Revolving Loans Amortized Cost Basis | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,275,302	1,440,736
Revolving Loans Amortized Cost Basis | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	285,508	281,018
Revolving Loans Amortized Cost Basis | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	328,968	297,864
Revolving Loans Amortized Cost Basis | Pass | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	4,332,632	4,102,751
Revolving Loans Amortized Cost Basis | Pass | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	387,603	349,566
Revolving Loans Amortized Cost Basis | Pass | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	289,261	229,044
Revolving Loans Amortized Cost Basis | Pass | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	48,205	27,657
Revolving Loans Amortized Cost Basis | Pass | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	35,548	53,250
Revolving Loans Amortized Cost Basis | Pass | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	965	1,040
Revolving Loans Amortized Cost Basis | Pass | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,264,828	1,429,755
Revolving Loans Amortized Cost Basis | Pass | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	283,887	279,142
Revolving Loans Amortized Cost Basis | Pass | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	328,734	297,637
Revolving Loans Amortized Cost Basis | Special Mention | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	78,717	60,741
Revolving Loans Amortized Cost Basis | Special Mention | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	8,180	0
Revolving Loans Amortized Cost Basis | Special Mention | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	57,204	55,440
Revolving Loans Amortized Cost Basis | Special Mention | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Special Mention | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	636
Revolving Loans Amortized Cost Basis | Substandard | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	82,883	84,498
Revolving Loans Amortized Cost Basis | Substandard | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Substandard | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	140	35
Revolving Loans Amortized Cost Basis | Substandard | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	598	1,340
Revolving Loans Amortized Cost Basis | Substandard | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Substandard | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Substandard | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	9,708	9,698
Revolving Loans Amortized Cost Basis | Substandard | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	409	595
Revolving Loans Amortized Cost Basis | Substandard | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	234	227
Revolving Loans Amortized Cost Basis | Doubtful | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	289	48
Revolving Loans Amortized Cost Basis | Doubtful | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Doubtful | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Loss and Charged Off | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Amortized Cost Basis | Loss and Charged Off | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	766	1,283
Revolving Loans Amortized Cost Basis | Loss and Charged Off | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,212	1,281
Revolving Loans Amortized Cost Basis | Loss and Charged Off | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	129,611	147,755
Revolving Loans Converted to Term Loans | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	46,702	50,765
Revolving Loans Converted to Term Loans | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	82,909	96,990
Revolving Loans Converted to Term Loans | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	46,702	50,765
Revolving Loans Converted to Term Loans | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	82,909	96,990
Revolving Loans Converted to Term Loans | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	44,177	49,762
Revolving Loans Converted to Term Loans | Pass | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	77,373	90,832
Revolving Loans Converted to Term Loans | Pass | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Pass | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Special Mention | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	440	489
Revolving Loans Converted to Term Loans | Special Mention | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Special Mention | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Special Mention | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Special Mention | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,085	514
Revolving Loans Converted to Term Loans | Substandard | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | Investment properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | 1-4 family properties | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | Land and development | Total commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	5,376	5,996
Revolving Loans Converted to Term Loans | Substandard | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Substandard | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Doubtful | Commercial, financial and agricultural | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Doubtful | Owner-occupied | Total commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Doubtful | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	18	19
Revolving Loans Converted to Term Loans | Loss and Charged Off | Consumer mortgages | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Loss and Charged Off | Home equity lines | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	142	143
Revolving Loans Converted to Term Loans | Loss and Charged Off | Credit cards | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0	0
Revolving Loans Converted to Term Loans | Loss and Charged Off | Other consumer loans | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 0	$ 0

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Loans and Allowance for Loan Losses (Schedule of Allowances for Loan Losses and Recorded Investment in Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Allowance for loan losses:
Beginning balance at March 31, 2021	$ 563,214	$ 493,452	$ 605,736	$ 281,402
Charge-offs	(30,853)	(30,778)	(56,178)	(54,652)
Recoveries	4,307	6,732	9,428	10,545
(Reversal of) provision for loan losses	(19,960)	119,242	(42,278)	268,359
Ending balance at June 30, 2021	516,708	588,648	516,708	588,648
Impact from Adoption
Allowance for loan losses:
Beginning balance at March 31, 2021				82,994
Adjusted balance
Allowance for loan losses:
Beginning balance at March 31, 2021				364,396
Commercial & Industrial
Allowance for loan losses:
Beginning balance at March 31, 2021	254,777	216,950	229,555	145,782
Charge-offs	(18,729)	(23,245)	(28,146)	(38,130)
Recoveries	1,495	3,261	4,267	5,002
(Reversal of) provision for loan losses	17,395	32,949	49,262	119,571
Ending balance at June 30, 2021	254,938	229,915	254,938	229,915
Commercial & Industrial | Impact from Adoption
Allowance for loan losses:
Beginning balance at March 31, 2021				(2,310)
Commercial & Industrial | Adjusted balance
Allowance for loan losses:
Beginning balance at March 31, 2021				143,472
Commercial Real Estate
Allowance for loan losses:
Beginning balance at March 31, 2021	113,812	107,117	130,742	67,430
Charge-offs	(3,839)	(689)	(14,158)	(1,706)
Recoveries	377	536	1,403	935
(Reversal of) provision for loan losses	(18,237)	64,562	(25,874)	105,518
Ending balance at June 30, 2021	92,113	171,526	92,113	171,526
Commercial Real Estate | Impact from Adoption
Allowance for loan losses:
Beginning balance at March 31, 2021				(651)
Commercial Real Estate | Adjusted balance
Allowance for loan losses:
Beginning balance at March 31, 2021				66,779
Consumer
Allowance for loan losses:
Beginning balance at March 31, 2021	194,625	169,385	245,439	68,190
Charge-offs	(8,285)	(6,844)	(13,874)	(14,816)
Recoveries	2,435	2,935	3,758	4,608
(Reversal of) provision for loan losses	(19,118)	21,731	(65,666)	43,270
Ending balance at June 30, 2021	$ 169,657	$ 187,207	$ 169,657	187,207
Consumer | Impact from Adoption
Allowance for loan losses:
Beginning balance at March 31, 2021				85,955
Consumer | Adjusted balance
Allowance for loan losses:
Beginning balance at March 31, 2021				$ 154,145

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Loans and Allowance for Loan Losses (Troubled Debt Restructurings) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) Contract	Jun. 30, 2020 USD ($) Contract	Jun. 30, 2021 USD ($) Contract	Jun. 30, 2020 USD ($) Contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	56	96	198	200
Recorded investment	$ 6,801,000	$ 15,652,000	$ 22,274,000	$ 52,348,000
Net charge-offs	$ 0	$ 0	$ 0	$ 0
Total commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	23	47	68	88
Recorded investment	$ 4,099,000	$ 5,390,000	$ 11,547,000	$ 12,588,000
Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	18	40	58	76
Recorded investment	$ 2,944,000	$ 3,503,000	$ 8,739,000	$ 9,237,000
Total commercial and industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	5	7	10	12
Recorded investment	$ 1,155,000	$ 1,887,000	$ 2,808,000	$ 3,351,000
Total commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	4	7	15	16
Recorded investment	$ 943,000	$ 6,308,000	$ 3,471,000	$ 30,994,000
Total commercial real estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	1	2	6	4
Recorded investment	$ 419,000	$ 5,599,000	$ 2,402,000	$ 28,669,000
Total commercial real estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	2	4	7	10
Recorded investment	$ 158,000	$ 618,000	$ 660,000	$ 1,784,000
Total commercial real estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	1	1	2	2
Recorded investment	$ 366,000	$ 91,000	$ 409,000	$ 541,000
Total consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	29	42	115	96
Recorded investment	$ 1,759,000	$ 3,954,000	$ 7,256,000	$ 8,766,000
Total consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	2	10	2	16
Recorded investment	$ 331,000	$ 2,038,000	$ 331,000	$ 3,638,000
Total consumer | Home equity lines
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	14	14	27	33
Recorded investment	$ 996,000	$ 1,099,000	$ 1,745,000	$ 2,337,000
Total consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	13	18	86	47
Recorded investment	$ 432,000	$ 817,000	$ 5,180,000	$ 2,791,000
Below Market Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	5,286,000	8,471,000	12,934,000	38,674,000
Below Market Interest Rate | Total commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	2,925,000	1,956,000	7,411,000	7,047,000
Below Market Interest Rate | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	1,770,000	1,503,000	5,002,000	5,226,000
Below Market Interest Rate | Total commercial and industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	1,155,000	453,000	2,409,000	1,821,000
Below Market Interest Rate | Total commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	943,000	5,759,000	3,389,000	30,003,000
Below Market Interest Rate | Total commercial real estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	419,000	5,599,000	2,402,000	28,669,000
Below Market Interest Rate | Total commercial real estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	158,000	69,000	621,000	793,000
Below Market Interest Rate | Total commercial real estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	366,000	91,000	366,000	541,000
Below Market Interest Rate | Total consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	1,418,000	756,000	2,134,000	1,624,000
Below Market Interest Rate | Total consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	331,000	556,000	331,000	1,072,000
Below Market Interest Rate | Total consumer | Home equity lines
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	900,000	181,000	1,487,000	455,000
Below Market Interest Rate | Total consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	187,000	19,000	316,000	97,000
Other Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	1,515,000	7,181,000	9,340,000	13,674,000
Other Concessions | Total commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	1,174,000	3,434,000	4,136,000	5,541,000
Other Concessions | Total commercial and industrial | Commercial, financial and agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	1,174,000	2,000,000	3,737,000	4,011,000
Other Concessions | Total commercial and industrial | Owner-occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	0	1,434,000	399,000	1,530,000
Other Concessions | Total commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	0	549,000	82,000	991,000
Other Concessions | Total commercial real estate | Investment properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	0	0	0	0
Other Concessions | Total commercial real estate | 1-4 family properties
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	0	549,000	39,000	991,000
Other Concessions | Total commercial real estate | Land and development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	0	0	43,000	0
Other Concessions | Total consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	341,000	3,198,000	5,122,000	7,142,000
Other Concessions | Total consumer | Consumer mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	0	1,482,000	0	2,566,000
Other Concessions | Total consumer | Home equity lines
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	96,000	918,000	258,000	1,882,000
Other Concessions | Total consumer | Other consumer loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	245,000	798,000	4,864,000	2,694,000
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded investment	$ 0	$ 0	$ 0	$ 0

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Goodwill and Other Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 452,390	$ 452,390	$ 452,390	$ 497,267	$ 497,267	$ 497,267
Community Banking Reporting Unit
Goodwill [Line Items]
Goodwill	256,323		256,323
Wholesale Banking Reporting Unit
Goodwill [Line Items]
Goodwill	171,636		171,636
Consumer Mortgage Reporting Unit
Goodwill [Line Items]
Goodwill	0		0
Wealth Management Reporting Unit
Goodwill [Line Items]
Goodwill	$ 24,431		$ 24,431

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Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Goodwill [Roll Forward]
Balance at beginning of period	$ 452,390	$ 497,267	$ 452,390	$ 497,267
Changes during the period from: other	0	0	0	0
Balance at end of period	$ 452,390	$ 497,267	$ 452,390	$ 497,267

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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Business Acquisition [Line Items]
Amortization expense	$ 2.4	$ 2.6	$ 4.8	$ 5.3
CDI
Business Acquisition [Line Items]
Useful life			10 years

XML

Goodwill and Other Intangible Assets (Other Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 69,900	$ 69,900
Accumulated Amortization	(29,546)	(24,788)
Net Carrying Value	40,354	45,112
CDI
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	57,400	57,400
Accumulated Amortization	(24,003)	(19,829)
Net Carrying Value	33,397	37,571
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,500	12,500
Accumulated Amortization	(5,543)	(4,959)
Net Carrying Value	$ 6,957	$ 7,541

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Shareholders' Equity and Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jan. 26, 2021
Class of Stock [Line Items]
Authorized amount			$ 200.0
Common Stock
Class of Stock [Line Items]
Share repurchased	$ 92.5
Shares repurchased (in shares)	1,900,000	0
Average price of shares repurchased (in dollars per share)	$ 47.51

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Shareholders' Equity and Other Comprehensive Income (Loss) (Changes in Accumulated Other Comprehensive Income (Loss) by Component (Net of Income Taxes)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	$ 5,161,717	$ 5,065,205	$ 5,161,334	$ 4,941,690
Other comprehensive income (loss), Net of Tax Amount	30,448	(53,941)	(112,909)	137,329
Ending balance	5,237,714	5,052,968	5,237,714	5,052,968
Accumulated other comprehensive income (loss)	(45,726)		(45,726)		$ (158,635)
Total
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	15,278	256,911	158,635	65,641
Other comprehensive income (loss) before reclassifications	33,180	(2,309)	(110,463)	195,523
Amounts reclassified from AOCI	(2,732)	(51,632)	(2,446)	(58,194)
Other comprehensive income (loss), Net of Tax Amount	30,448	(53,941)	(112,909)	137,329
Ending balance	45,726	202,970	45,726	202,970
Net unrealized gains (losses) on investment securities available for sale
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	(15,316)	194,524	105,669	83,666
Other comprehensive income (loss) before reclassifications	34,617	(8,847)	(87,843)	108,484
Amounts reclassified from AOCI	0	(51,432)	1,475	(57,905)
Other comprehensive income (loss), Net of Tax Amount	34,617	(60,279)	(86,368)	50,579
Ending balance	19,301	134,245	19,301	134,245
Net unrealized gains (losses) on investment securities available for sale | Valuation Allowance of Deferred Tax Assets
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Accumulated other comprehensive income (loss)	13,300		13,300
Net unrealized gains (losses) on cash flow hedges
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	30,594	61,925	52,966	(18,487)
Other comprehensive income (loss) before reclassifications	(1,437)	6,538	(22,620)	87,039
Amounts reclassified from AOCI	(2,732)	(200)	(3,921)	(289)
Other comprehensive income (loss), Net of Tax Amount	(4,169)	6,338	(26,541)	86,750
Ending balance	26,425	68,263	26,425	68,263
Post-retirement unfunded health benefit
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	0	462	0	462
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Other comprehensive income (loss), Net of Tax Amount	0	0	0	0
Ending balance	0	$ 462	0	$ 462
Net unrealized losses on cash flow hedges | Valuation Allowance of Deferred Tax Assets
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Accumulated other comprehensive income (loss)	$ 12,100		$ 12,100

XML

Fair Value Accounting (Financial Instruments Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Investment securities available for sale	$ 9,442,170	$ 7,962,438
Mortgage loans held for sale	202,216	216,647
Mortgage-backed securities issued by U.S. Government agencies
Assets
Investment securities available for sale	976,114	1,218,017
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Assets
Investment securities available for sale	1,104,046	1,250,377
U.S. Treasury securities
Assets
Investment securities available for sale	118,231	20,257
Mortgage-backed securities issued by U.S. Government sponsored enterprises
Assets
Investment securities available for sale	6,708,415	5,000,046
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Assets
Investment securities available for sale	460,542	370,921
Corporate debt securities and other debt securities
Assets
Investment securities available for sale	18,707	20,500
Level 1
Assets
Trading securities	0	0
Investment securities available for sale	118,231	20,257
Private equity investments	0	0
Mutual funds and mutual funds held in rabbi trusts	41,710	37,650
GGL/SBA loans servicing asset	0	0
Derivative assets	0	0
Liabilities
Trading liability for short positions		0
Earnout liability	0	0
Derivative liabilities	0	0
Level 2
Assets
Trading securities	4,187	10,880
Investment securities available for sale	9,323,939	7,940,160
Private equity investments	0	0
Mutual funds and mutual funds held in rabbi trusts	0	0
GGL/SBA loans servicing asset	0	0
Derivative assets	279,454	401,295
Liabilities
Trading liability for short positions		7,717
Earnout liability	0	0
Derivative liabilities	113,708	155,119
Level 3
Assets
Trading securities	0	0
Investment securities available for sale	0	2,021
Private equity investments	1,026	1,021
Mutual funds and mutual funds held in rabbi trusts	0	0
GGL/SBA loans servicing asset	3,321	3,258
Derivative assets	0	0
Liabilities
Trading liability for short positions		0
Earnout liability	6,427	5,677
Derivative liabilities	1,473	2,048
Fair Value, Measurements, Recurring Basis
Assets
Trading securities	4,187	10,880
Investment securities available for sale	9,442,170	7,962,438
Mortgage loans held for sale	202,216	216,647
Private equity investments	1,026	1,021
Mutual funds and mutual funds held in rabbi trusts	41,710	37,650
GGL/SBA loans servicing asset	3,321	3,258
Derivative assets	279,454	401,295
Liabilities
Trading liability for short positions	0	7,717
Earnout liability	6,427	5,677
Derivative liabilities	115,181	157,167
Fair Value, Measurements, Recurring Basis | Mortgage-backed securities issued by U.S. Government agencies
Assets
Trading securities	0	10,185
Investment securities available for sale	976,114	1,218,017
Fair Value, Measurements, Recurring Basis | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Assets
Trading securities	265	158
Investment securities available for sale	1,104,046	1,250,377
Fair Value, Measurements, Recurring Basis | Other mortgage-backed securities
Assets
Trading securities	282	178
Fair Value, Measurements, Recurring Basis | State and municipal securities
Assets
Trading securities	1,495	176
Fair Value, Measurements, Recurring Basis | Asset-backed securities
Assets
Trading securities	2,145	183
Fair Value, Measurements, Recurring Basis | U.S. Treasury securities
Assets
Investment securities available for sale	118,231	20,257
Fair Value, Measurements, Recurring Basis | U.S. Government agency securities
Assets
Investment securities available for sale	56,115	82,320
Fair Value, Measurements, Recurring Basis | Mortgage-backed securities issued by U.S. Government sponsored enterprises
Assets
Investment securities available for sale	6,708,415	5,000,046
Fair Value, Measurements, Recurring Basis | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Assets
Investment securities available for sale	460,542	370,921
Fair Value, Measurements, Recurring Basis | Corporate debt securities and other debt securities
Assets
Investment securities available for sale	18,707	20,500
Fair Value, Measurements, Recurring Basis | Level 1
Assets
Trading securities	0	0
Investment securities available for sale	118,231	20,257
Mortgage loans held for sale	0	0
Private equity investments	0	0
Mutual funds and mutual funds held in rabbi trusts	41,710	37,650
GGL/SBA loans servicing asset	0	0
Derivative assets	0	0
Liabilities
Trading liability for short positions	0	0
Earnout liability	0	0
Derivative liabilities	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Mortgage-backed securities issued by U.S. Government agencies
Assets
Trading securities	0	0
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Assets
Trading securities	0	0
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Other mortgage-backed securities
Assets
Trading securities	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | State and municipal securities
Assets
Trading securities	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Asset-backed securities
Assets
Trading securities	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | U.S. Treasury securities
Assets
Investment securities available for sale	118,231	20,257
Fair Value, Measurements, Recurring Basis | Level 1 | U.S. Government agency securities
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Mortgage-backed securities issued by U.S. Government sponsored enterprises
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 1 | Corporate debt securities and other debt securities
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 2
Assets
Trading securities	4,187	10,880
Investment securities available for sale	9,323,939	7,940,160
Mortgage loans held for sale		216,647
Private equity investments	0	0
Mutual funds and mutual funds held in rabbi trusts	0	0
GGL/SBA loans servicing asset	0	0
Derivative assets	279,454	401,295
Liabilities
Trading liability for short positions	0	7,717
Earnout liability	0	0
Derivative liabilities	113,708	155,119
Fair Value, Measurements, Recurring Basis | Level 2 | Mortgage-backed securities issued by U.S. Government agencies
Assets
Trading securities	0	10,185
Investment securities available for sale	976,114	1,218,017
Fair Value, Measurements, Recurring Basis | Level 2 | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Assets
Trading securities	265	158
Investment securities available for sale	1,104,046	1,250,377
Fair Value, Measurements, Recurring Basis | Level 2 | Other mortgage-backed securities
Assets
Trading securities	282	178
Fair Value, Measurements, Recurring Basis | Level 2 | State and municipal securities
Assets
Trading securities	1,495	176
Fair Value, Measurements, Recurring Basis | Level 2 | Asset-backed securities
Assets
Trading securities	2,145	183
Fair Value, Measurements, Recurring Basis | Level 2 | U.S. Treasury securities
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 2 | U.S. Government agency securities
Assets
Investment securities available for sale	56,115	82,320
Fair Value, Measurements, Recurring Basis | Level 2 | Mortgage-backed securities issued by U.S. Government sponsored enterprises
Assets
Investment securities available for sale	6,708,415	5,000,046
Fair Value, Measurements, Recurring Basis | Level 2 | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Assets
Investment securities available for sale	460,542	370,921
Fair Value, Measurements, Recurring Basis | Level 2 | Corporate debt securities and other debt securities
Assets
Investment securities available for sale	18,707	18,479
Fair Value, Measurements, Recurring Basis | Level 3
Assets
Trading securities	0	0
Investment securities available for sale	0	2,021
Mortgage loans held for sale	0	0
Private equity investments	1,026	1,021
Mutual funds and mutual funds held in rabbi trusts	0	0
GGL/SBA loans servicing asset	3,321	3,258
Derivative assets	0	0
Liabilities
Trading liability for short positions	0	0
Earnout liability	6,427	5,677
Derivative liabilities	1,473	2,048
Fair Value, Measurements, Recurring Basis | Level 3 | Mortgage-backed securities issued by U.S. Government agencies
Assets
Trading securities	0	0
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises
Assets
Trading securities	0	0
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | Other mortgage-backed securities
Assets
Trading securities	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | State and municipal securities
Assets
Trading securities	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | Asset-backed securities
Assets
Trading securities	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | U.S. Treasury securities
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | U.S. Government agency securities
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | Mortgage-backed securities issued by U.S. Government sponsored enterprises
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises
Assets
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring Basis | Level 3 | Corporate debt securities and other debt securities
Assets
Investment securities available for sale	$ 0	$ 2,021

XML

Fair Value Accounting (Mortgage Loans Held for Sale and Changes in Fair Value Included in Consolidated Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Mortgage loans held for sale	$ 202,216		$ 202,216		$ 216,647
Unpaid principal balance	196,399		196,399		210,292
Fair value less aggregate unpaid principal balance	5,817		5,817		$ 6,355
Mortgage loans held for sale	$ 4,094	$ 5,365	$ (538)	$ 5,984

XML

Fair Value Accounting (Changes in Level 3 Fair Value Measurements) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
GGL / SBA Loans Servicing Asset
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 3,305	$ 3,149	$ 3,258	$ 3,040
Included in earnings	(252)	(291)	(430)	(555)
Sales			0
Unrealized gains (losses) included in OCI		0		0
Additions	268	161	493	534
Settlements	0	0	0	0
Ending balance	3,321	3,019	3,321	3,019
Total net gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	0	0	0	0
Earnout Liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	(5,677)	(11,016)	(5,677)	(11,016)
Included in earnings	(750)	(4,908)	(750)	(4,908)
Sales			0
Unrealized gains (losses) included in OCI		0		0
Additions	0	0	0	0
Settlements	0	0	0	0
Ending balance	(6,427)	(15,924)	(6,427)	(15,924)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	(750)	(4,908)	(750)	(4,908)
Visa Derivative
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	(1,768)	(2,050)	(2,048)	(2,339)
Included in earnings	0	0	0	0
Sales			0
Unrealized gains (losses) included in OCI		0		0
Additions	0	0	0	0
Settlements	295	295	575	584
Ending balance	(1,473)	(1,755)	(1,473)	(1,755)
Total net gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	0	0	0	0
Investment Securities Available for Sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	0	1,562	2,021	2,105
Included in earnings	0	0		0
Sales			(2,021)
Unrealized gains (losses) included in OCI		100		(443)
Additions	0	0	0	0
Settlements	0	0	0	0
Ending balance	0	1,662	0	1,662
Total net gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	0	0	0	0
Private Equity Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,053	3,255	1,021	3,887
Included in earnings	(27)	(2,557)	5	(3,189)
Sales			0
Unrealized gains (losses) included in OCI		0		0
Additions	0	0	0	0
Settlements	0	0	0	0
Ending balance	1,026	698	1,026	698
Total net gains (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	$ (27)	$ (2,557)	$ 5	$ (3,189)

XML

Fair Value Accounting (Assets Measured at Fair Value on Non-Recurring Basis) (Details) - Fair Value, Measurements, Nonrecurring Basis - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 29,201	$ 21,138
Other real estate	42	5,902
Other real estate	0	18,202
Other assets held for sale	1,170	1,634
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other real estate	0	0
Other real estate	0	0
Other assets held for sale	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other real estate	0	0
Other real estate	0	0
Other assets held for sale	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	29,201	21,138
Other real estate	42	5,902
Other real estate	0	18,202
Other assets held for sale	$ 1,170	$ 1,634

XML

Fair Value Accounting (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Other real estate	$ 1.5	$ 1.8

XML

Fair Value Accounting (Fair Value Adjustments Recognized in Earnings for Assets Measured at Fair Value on a Non-recurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Other real estate	$ 1,500		$ 1,500		$ 1,800
Fair Value, Measurements, Nonrecurring Basis | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment	13,476	$ 14,950	13,504	$ 14,950
Fair Value, Measurements, Nonrecurring Basis | Other real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment	2	1,228	2	1,228
Fair Value, Measurements, Nonrecurring Basis | MPS receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment	0	0	0	2,663
Fair Value, Measurements, Nonrecurring Basis | Other assets held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value adjustment	$ 76	$ 729	$ 76	$ 2,120

XML

Fair Value Accounting (Carrying and Estimated Fair Values of Financial Instruments Carried on Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financial assets
Investment securities available for sale	$ 9,442,170	$ 7,962,438
Loans held for sale	750,916	760,123
Financial liabilities
Non-interest-bearing deposits	15,345,629	13,477,854
Total deposits	47,171,962	46,691,571
Federal funds purchased and securities sold under repurchase agreements	194,786	227,922
Long-term debt	1,203,293	1,202,494
Level 1
Financial assets
Total cash, cash equivalents, and restricted cash	3,262,676	4,252,917
Trading securities	0	0
Investment securities available for sale	118,231	20,257
Loans held for sale	0	0
Private equity investments	0	0
Mutual funds and mutual funds held in rabbi trusts	41,710	37,650
Loans, net	0	0
GGL/SBA loans servicing asset	0	0
Derivative assets	0	0
Financial liabilities
Non-interest-bearing deposits	0	0
Non-time interest-bearing deposits	0	0
Time deposits	0	0
Total deposits	0	0
Federal funds purchased and securities sold under repurchase agreements	194,786	227,922
Trading liability for short positions		0
Long-term debt	0	0
Earnout liability	0	0
Derivative liabilities	0	0
Level 2
Financial assets
Total cash, cash equivalents, and restricted cash	0	0
Trading securities	4,187	10,880
Investment securities available for sale	9,323,939	7,940,160
Loans held for sale	202,216	216,647
Private equity investments	0	0
Mutual funds and mutual funds held in rabbi trusts	0	0
Loans, net	0	0
GGL/SBA loans servicing asset	0	0
Derivative assets	279,454	401,295
Financial liabilities
Non-interest-bearing deposits	15,345,629	13,477,854
Non-time interest-bearing deposits	27,181,793	27,265,521
Time deposits	4,663,354	5,970,146
Total deposits	47,190,776	46,713,521
Federal funds purchased and securities sold under repurchase agreements	0	0
Trading liability for short positions		7,717
Long-term debt	1,261,642	1,266,825
Earnout liability	0	0
Derivative liabilities	113,708	155,119
Level 3
Financial assets
Total cash, cash equivalents, and restricted cash	0	0
Trading securities	0	0
Investment securities available for sale	0	2,021
Loans held for sale	549,416	544,292
Private equity investments	1,026	1,021
Mutual funds and mutual funds held in rabbi trusts	0	0
Loans, net	37,743,546	37,605,881
GGL/SBA loans servicing asset	3,321	3,258
Derivative assets	0	0
Financial liabilities
Non-interest-bearing deposits	0	0
Non-time interest-bearing deposits	0	0
Time deposits	0	0
Total deposits	0	0
Federal funds purchased and securities sold under repurchase agreements	0	0
Trading liability for short positions		0
Long-term debt	0	0
Earnout liability	6,427	5,677
Derivative liabilities	1,473	2,048
Carrying Value
Financial assets
Total cash, cash equivalents, and restricted cash	3,262,676	4,252,917
Trading securities	4,187	10,880
Investment securities available for sale	9,442,170	7,962,438
Loans held for sale	750,916	760,123
Private equity investments	1,026	1,021
Mutual funds and mutual funds held in rabbi trusts	41,710	37,650
Loans, net	37,719,310	37,647,248
GGL/SBA loans servicing asset	3,321	3,258
Derivative assets	279,454	401,295
Financial liabilities
Non-interest-bearing deposits	15,345,629	13,477,854
Non-time interest-bearing deposits	27,181,793	27,265,521
Time deposits	4,644,540	5,948,196
Total deposits	47,171,962	46,691,571
Federal funds purchased and securities sold under repurchase agreements	194,786	227,922
Trading liability for short positions		7,717
Long-term debt	1,203,293	1,202,494
Earnout liability	6,427	5,677
Derivative liabilities	115,181	157,167
Fair Value
Financial assets
Total cash, cash equivalents, and restricted cash	3,262,676	4,252,917
Trading securities	4,187	10,880
Investment securities available for sale	9,442,170	7,962,438
Loans held for sale	751,632	760,939
Private equity investments	1,026	1,021
Mutual funds and mutual funds held in rabbi trusts	41,710	37,650
Loans, net	37,743,546	37,605,881
GGL/SBA loans servicing asset	3,321	3,258
Derivative assets	279,454	401,295
Financial liabilities
Non-interest-bearing deposits	15,345,629	13,477,854
Non-time interest-bearing deposits	27,181,793	27,265,521
Time deposits	4,663,354	5,970,146
Total deposits	47,190,776	46,713,521
Federal funds purchased and securities sold under repurchase agreements	194,786	227,922
Trading liability for short positions		7,717
Long-term debt	1,261,642	1,266,825
Earnout liability	6,427	5,677
Derivative liabilities	$ 115,181	$ 157,167

XML

Derivative Instruments and Hedging Activities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Derivative [Line Items]
Unrealized gains, before tax	$ (1,923)		$ 8,823		$ (30,980)	$ 117,462
Unrealized gain, after tax	(1,437)		$ 6,538		(22,620)	$ 87,039
Income recognized	3,700				5,300
Cash flow hedge gain (loss) to be reclassified					41,000
Cash flow hedge termination gain					10,000
Collateral requirements	118,200				118,200		$ 155,400
Variation margin, amount reducing derivative asset	114,000				114,000		162,700
Foreign Currency Exchange Forwards
Derivative [Line Items]
Notional amount	$ 19,900				$ 19,900		$ 24,100
Cash Flow Hedges
Derivative [Line Items]
Unrealized gains, before tax		$ 757		$ 9,800
Unrealized gain, after tax		$ 565		$ 7,300

XML

Derivative Instruments and Hedging Activities (Impact of Derivatives on Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivatives not designated as hedging instruments
Derivative [Line Items]
Fair value of derivative assets	$ 230,301	$ 320,493
Fair value of derivative liabilities	115,092	157,167
Derivatives not designated as hedging instruments | Interest rate contracts
Derivative [Line Items]
Notional Amount	9,023,627	8,784,141
Fair value of derivative assets	225,813	314,234
Fair value of derivative liabilities	113,154	153,204
Derivatives not designated as hedging instruments | Mortgage derivatives | Mortgage derivatives - interest rate lock commitments
Derivative [Line Items]
Notional Amount	198,775	306,138
Fair value of derivative assets	4,488	6,259
Fair value of derivative liabilities	0	0
Derivatives not designated as hedging instruments | Mortgage derivatives | Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans
Derivative [Line Items]
Notional Amount	194,000	230,500
Fair value of derivative assets	0	0
Fair value of derivative liabilities	343	1,611
Derivatives not designated as hedging instruments | Other contracts
Derivative [Line Items]
Notional Amount	171,321	234,884
Fair value of derivative assets	0	0
Fair value of derivative liabilities	122	304
Derivatives not designated as hedging instruments | Visa derivative
Derivative [Line Items]
Notional Amount	0	0
Fair value of derivative assets	0	0
Fair value of derivative liabilities	1,473	2,048
Derivatives not designated as hedging instruments | Risk derivative
Derivative [Line Items]
Notional Amount	6,300	2,600
Cash flow hedges
Derivative [Line Items]
Fair value of derivative assets	49,153	80,802
Fair value of derivative liabilities	89	0
Cash flow hedges | Interest rate contracts
Derivative [Line Items]
Notional Amount	3,250,000	3,000,000
Fair value of derivative assets	49,153	80,802
Fair value of derivative liabilities	$ 89	$ 0

XML

Derivative Instruments and Hedging Activities (Effect of Cash Flow Hedges on Consolidated Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative [Line Items]
Total amounts presented in the consolidated statements of income in interest income on loans	$ 7,605	$ 5,261	$ 15,947	$ 5,086
Interest rate contracts | Cash Flow Hedges
Derivative [Line Items]
Realized gains (losses) reclassified from AOCI, pre-tax, to interest income on loans	3,657	270	5,256	390
Pre-tax income recognized on cash flow hedges	$ 3,657	$ 270	$ 5,256	$ 390

XML

Derivative Instruments and Hedging Activities (Effect of Fair Value Hedges on Consolidated Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Swap
Derivative [Line Items]
Gain (Loss) Recognized in Consolidated Statements of Income			$ 2,500
Derivatives not designated as hedging instruments
Derivative [Line Items]
Gain (Loss) Recognized in Consolidated Statements of Income	$ (5,683)	$ 3,724		$ (12)	$ 4,878
Derivatives not designated as hedging instruments | Interest rate contracts | Capital markets income
Derivative [Line Items]
Gain (Loss) Recognized in Consolidated Statements of Income	(637)	653		310	49
Derivatives not designated as hedging instruments | Other contracts | Capital markets income
Derivative [Line Items]
Gain (Loss) Recognized in Consolidated Statements of Income	(19)	4		182	(333)
Derivatives not designated as hedging instruments | Mortgage derivatives | Mortgage derivatives - interest rate lock commitments | Mortgage banking income
Derivative [Line Items]
Gain (Loss) Recognized in Consolidated Statements of Income	(53)	(634)		(1,772)	6,390
Derivatives not designated as hedging instruments | Mortgage derivatives | Mortgage derivatives - forward commitments to sell fixed-rate mortgage loans | Mortgage banking income
Derivative [Line Items]
Gain (Loss) Recognized in Consolidated Statements of Income	$ (4,974)	$ 3,701		$ 1,268	$ (1,228)

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Net Income Per Common Share (Schedule of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Basic Net Income Per Common Share:
Net income available to common shareholders	$ 177,909	$ 84,901	$ 356,711	$ 115,131
Weighted average common shares outstanding (in shares)	148,113	147,288	148,289	147,300
Net income per common share, basic (in dollars per share)	$ 1.20	$ 0.58	$ 2.41	$ 0.78
Diluted Net Income Per Common Share:
Net income available to common shareholders	$ 177,909	$ 84,901	$ 356,711	$ 115,131
Weighted average common shares outstanding (in shares)	148,113	147,288	148,289	147,300
Effect of dilutive outstanding equity-based awards, warrants, and earnout payments (in shares)	1,634	445	1,475	767
Weighted average number of diluted common shares (in shares)	149,747	147,733	149,764	148,067
Net income per common share, diluted (in dollars per share)	$ 1.19	$ 0.57	$ 2.38	$ 0.78

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Net Income Per Common Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	1,300,000	21,000	639,000

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Commitments and Contingencies (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Allowance for loan losses	$ 516,708,000	$ 588,648,000	$ 516,708,000	$ 588,648,000	$ 563,214,000	$ 605,736,000	$ 493,452,000	$ 281,402,000
Carrying amount included in other assets	350,692,000		350,692,000			262,855,000
Amount of future funding commitments included in carrying amount	198,575,000		198,575,000			133,946,000
Permanent and short-term construction loans and letter of credit commitments	200,476,000		200,476,000			84,552,000
Funded portion of permanent and short-term loans and letters of credit	37,362,000		37,362,000			9,762,000
Contractual amount net of risk participations	28,500,000		28,500,000			30,200,000
Minimum
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	0		0
Maximum
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	5,000,000		5,000,000
Other assets held for sale
Loss Contingencies [Line Items]
Guarantor obligations, advanced payment from merchant	15,300,000		15,300,000			15,600,000
Guarantee obligations
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	15,339,501,000		15,339,501,000			14,768,588,000
Maximum potential exposure for sponsored transactions	28,890,000,000	$ 16,400,000,000	55,150,000,000	$ 34,750,000,000
Letters of credit*
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	185,433,000		185,433,000			190,562,000
Commitments to fund commercial and industrial loans
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	8,617,252,000		8,617,252,000			8,200,608,000
Commitments to fund commercial real estate, construction, and land development loans
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	3,286,077,000		3,286,077,000			3,290,041,000
Commitments under home equity lines of credit
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	1,681,782,000		1,681,782,000			1,602,831,000
Unused credit card lines
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	1,002,367,000		1,002,367,000			1,012,313,000
Other loan commitments
Loss Contingencies [Line Items]
Total letters of credit and unfunded lending commitments	566,590,000		566,590,000			472,233,000
Unfunded Loan Commitment
Loss Contingencies [Line Items]
Allowance for loan losses	$ 46,900,000		$ 46,900,000			$ 47,800,000

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Segment Reporting (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) employee	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) employee segment	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) employee
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Income Statement Related Disclosures [Abstract]
Net interest income	$ 381,860	$ 376,566	$ 755,716	$ 749,826
Non-interest revenue	107,087	173,484	218,043	277,341
Non-interest expense	270,531	284,141	537,665	560,421
Pre-provision net revenue	218,416	265,909	436,094	466,746
Balance Sheet Related Disclosures [Abstract]
Loans, net of deferred fees and costs	38,236,018		38,236,018		$ 38,252,984
Total deposits	$ 47,171,962		$ 47,171,962		$ 46,691,571
Total full-time equivalent employees | employee	4,983		4,983		5,134
Operating Segments | Community Banking
Income Statement Related Disclosures [Abstract]
Net interest income	$ 202,881	219,097	$ 409,123	415,601
Non-interest revenue	32,212	23,747	61,966	54,071
Non-interest expense	69,120	74,764	137,178	148,737
Pre-provision net revenue	165,973	168,080	333,911	320,935
Balance Sheet Related Disclosures [Abstract]
Loans, net of deferred fees and costs	10,730,544		10,730,544		$ 11,171,013
Total deposits	$ 31,317,490		$ 31,317,490		$ 29,141,242
Total full-time equivalent employees | employee	2,114		2,114		2,199
Operating Segments | Wholesale Banking
Income Statement Related Disclosures [Abstract]
Net interest income	$ 136,126	145,016	$ 270,200	268,186
Non-interest revenue	7,000	5,682	14,319	15,009
Non-interest expense	21,290	22,934	42,014	43,647
Pre-provision net revenue	121,836	127,764	242,505	239,548
Balance Sheet Related Disclosures [Abstract]
Loans, net of deferred fees and costs	19,369,933		19,369,933		$ 18,810,729
Total deposits	$ 10,983,120		$ 10,983,120		$ 11,958,105
Total full-time equivalent employees | employee	288		288		285
Operating Segments | Financial Management Services
Income Statement Related Disclosures [Abstract]
Net interest income	$ 18,935	20,069	$ 39,930	37,453
Non-interest revenue	52,345	52,976	110,928	100,360
Non-interest expense	46,773	48,394	94,447	91,785
Pre-provision net revenue	24,507	24,651	56,411	46,028
Balance Sheet Related Disclosures [Abstract]
Loans, net of deferred fees and costs	5,078,318		5,078,318		$ 5,370,790
Total deposits	$ 737,202		$ 737,202		$ 739,200
Total full-time equivalent employees | employee	809		809		832
Treasury and Corporate Other
Income Statement Related Disclosures [Abstract]
Net interest income	$ 23,918	(7,616)	$ 36,463	28,586
Non-interest revenue	15,530	91,079	30,830	107,901
Non-interest expense	133,348	138,049	264,026	276,252
Pre-provision net revenue	(93,900)	$ (54,586)	(196,733)	$ (139,765)
Balance Sheet Related Disclosures [Abstract]
Loans, net of deferred fees and costs	3,057,223		3,057,223		$ 2,900,452
Total deposits	$ 4,134,150		$ 4,134,150		$ 4,853,024
Total full-time equivalent employees | employee	1,772		1,772		1,818

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Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]