United Community Banks (UCB) 10-Q 6 Aug 21 2021 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2021	Jul. 31, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-35095
Entity Registrant Name	UNITED COMMUNITY BANKS, INC.
Entity Incorporation, State or Country Code	GA
Entity Tax Identification Number	58-1807304
Entity Address, Address Line One	125 Highway 515 East
Entity Address, City or Town	Blairsville
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30512
City Area Code	706
Local Phone Number	781-2265
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		86,627,703
Entity Central Index Key	0000857855
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Common stock, par value $1 per share
Entity Listings [Line Items]
Title of 12(b) Security	Common stock, par value $1 per share
Trading Symbol	UCBI
Security Exchange Name	NASDAQ
Depositary shares, each representing 1/1000th interest in a share of Series I Non-Cumulative Preferred Stock
Entity Listings [Line Items]
Title of 12(b) Security	Depositary shares, each representing 1/1000th interest in a share of Series I Non-Cumulative Preferred Stock
Trading Symbol	UCBIO
Security Exchange Name	NASDAQ

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 121,589	$ 148,896
Interest-bearing deposits in banks	1,297,808	1,459,723
Cash and cash equivalents	1,419,397	1,608,619
Debt securities available-for-sale	4,075,781	3,224,721
Debt securities held-to-maturity (fair value $861,488 and $437,193, respectively)	852,404	420,361
Loans held for sale at fair value	98,194	105,433
Loans and leases held for investment	11,390,746	11,370,815
Less allowance for credit losses - loans and leases	(111,616)	(137,010)
Loans and leases, net	11,279,130	11,233,805
Premises and equipment, net	224,980	218,489
Bank owned life insurance	203,449	201,969
Accrued interest receivable	43,521	47,672
Net deferred tax asset	32,918	38,411
Derivative financial instruments	58,489	86,666
Goodwill and other intangible assets, net	379,909	381,823
Other assets	227,551	226,405
Total assets	18,895,723	17,794,374
Deposits:
Noninterest-bearing demand	6,260,756	5,390,291
Interest-bearing deposits	10,067,011	9,842,067
Total deposits	16,327,767	15,232,358
Long-term debt	261,919	326,956
Derivative financial instruments	27,089	29,003
Accrued expenses and other liabilities	192,662	198,527
Total liabilities	16,809,437	15,786,844
Shareholders' equity:
Preferred stock, $1 par value: 10,000,000 shares authorized; Series I, $25,000 per share liquidation preference; 4,000 shares issued and outstanding	96,422	96,422
Common stock, $1 par value: 200,000,000 and 150,000,000 shares authorized, respectively; 86,664,894 and 86,675,279 shares issued and outstanding, respectively	86,665	86,675
Common stock issuable: 571,580 and 600,834 shares, respectively	10,650	10,855
Capital surplus	1,636,875	1,638,999
Retained earnings	244,006	136,869
Accumulated other comprehensive income	11,668	37,710
Total shareholders' equity	2,086,286	2,007,530
Total liabilities and shareholders' equity	$ 18,895,723	$ 17,794,374

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
HTM debt securities	$ 861,488,000	$ 437,193,000
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock authorized (in shares)	10,000,000	10,000,000
Preferred stock liquidation preference (in dollars per share)	$ 25,000	$ 25,000
Preferred stock issued (in shares)	4,000	4,000
Preferred stock outstanding (in shares)	4,000	4,000
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock authorized (in shares)	200,000,000	150,000,000
Common stock issued (in shares)	86,664,894	86,675,279
Common stock outstanding (in shares)	86,664,894	86,675,279
Common stock issuable (in shares)	571,580	600,834

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - 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 revenue:
Loans, including fees	$ 128,058	$ 107,862	$ 253,784	$ 225,925
Investment securities, including tax exempt of $2,255 and $1,570 and $4,405 and $3,093, respectively	17,542	15,615	32,990	33,009
Deposits in banks and short-term investments	209	128	577	1,218
Total interest revenue	145,809	123,605	287,351	260,152
Interest expense:
Deposits	3,620	11,271	8,839	26,346
Short-term borrowings	0	0	2	2
Long-term debt	3,813	3,030	8,070	5,894
Total interest expense	7,433	14,301	16,911	32,242
Net interest revenue	138,376	109,304	270,440	227,910
(Release of) provision for credit losses	(13,588)	33,543	(25,869)	55,734
Net interest revenue after provision for credit losses	151,964	75,761	296,309	172,176
Noninterest income:
Wealth management fees	3,822	1,324	7,327	2,964
Gains from sales of other loans, net	4,123	1,040	5,153	2,714
Securities gains, net	41	0	41	0
Other	8,384	7,220	18,412	12,772
Total noninterest income	35,841	40,238	80,546	66,052
Total revenue	187,805	115,999	376,855	238,228
Noninterest expenses:
Salaries and employee benefits	59,414	51,811	119,999	103,169
Communications and equipment	7,408	6,556	14,611	12,502
Occupancy	7,078	5,945	14,034	11,659
Advertising and public relations	1,493	2,260	2,692	3,534
Postage, printing and supplies	1,618	1,613	3,440	3,283
Professional fees	4,928	4,823	9,162	8,920
Lending and loan servicing expense	3,181	3,189	6,058	5,482
Outside services - electronic banking	2,285	1,796	4,503	3,628
FDIC assessments and other regulatory charges	1,901	1,558	3,797	3,042
Amortization of intangibles	929	987	1,914	2,027
Merger-related and other charges	1,078	397	2,621	1,205
Other	4,227	3,045	7,903	7,067
Total noninterest expenses	95,540	83,980	190,734	165,518
Income before income taxes	92,265	32,019	186,121	72,710
Income tax expense	22,005	6,923	42,155	15,730
Net income	70,260	25,096	143,966	56,980
Net income available to common shareholders	$ 68,109	$ 24,913	$ 139,634	$ 56,554
Net income per common share:
Basic (in dollars per share)	$ 0.78	$ 0.32	$ 1.60	$ 0.71
Diluted (in dollars per share)	$ 0.78	$ 0.32	$ 1.60	$ 0.71
Weighted average common shares outstanding:
Basic (in shares)	87,289	78,920	87,306	79,130
Diluted (in shares)	87,421	78,924	87,443	79,186
Service charges and fees
Noninterest income:
Service charges and other related fees	$ 8,335	$ 6,995	$ 15,905	$ 15,633
Mortgage loan gains and other related fees
Noninterest income:
Service charges and other related fees	$ 11,136	$ 23,659	$ 33,708	$ 31,969

Consolidated Statements of In_2

Consolidated Statements of Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Investment securities, tax exempt	$ 2,255	$ 1,570	$ 4,405	$ 3,093

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - 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	$ 92,265	$ 32,019	$ 186,121	$ 72,710
Net income, Tax (Expense) Benefit	(22,005)	(6,923)	(42,155)	(15,730)
Net income, Net of Tax Amount	70,260	25,096	143,966	56,980
Unrealized gains (losses) on available-for-sale securities:
Unrealized gains (losses) on available-for-sale securities, Before-tax Amount	10,268	28,985	(39,967)	42,670
Unrealized gains (losses) on available-for-sale securities, Tax (Expense) Benefit	(1,470)	(6,969)	11,080	(10,402)
Unrealized gains (losses) on available-for-sale securities, Net of Tax Amount	8,798	22,016	(28,887)	32,268
Reclassification adjustment for gains included in net income, Before-tax Amount	(41)		(41)
Reclassification adjustment for gains included in net income, Tax (Expense) Benefit	14	0	14	0
Reclassification adjustment for gains included in net income, Net of Tax Amount	(27)		(27)
Net unrealized gains (losses), Before-tax Amount	10,227		(40,008)
Net unrealized gains (losses), Tax (Expense) Benefit	(1,456)		11,094
Net unrealized gains (losses), Net of Tax Amount	8,771		(28,914)
Amortization of losses included in net income on available-for-sale securities transferred to held-to-maturity, Before-tax Amount		96		179
Amortization of losses included in net income on available-for-sale securities transferred to held-to-maturity, Tax (Expense) Benefit		(23)		(43)
Amortization of losses included in net income on available-for-sale securities transferred to held-to-maturity, Net of Tax Amount		73		136
Derivative instruments designated as cash flow hedges:
Unrealized holding gains (losses) on derivatives arising during the period, Before-tax Amount	(2,739)	(828)	3,044	(828)
Unrealized holding (losses) on derivatives arising during the period, Tax (Expense) Benefit	700	211	(777)	211
Unrealized holding gains (losses) on derivatives arising during the period, Net of Tax Amount	(2,039)	(617)	2,267	(617)
Reclassification of losses on derivative instruments realized in net income, Before-tax Amount	147	67	291	67
Reclassification of losses on derivative instruments realized in net income, Tax (Expense) Benefit	(37)	(17)	(74)	(17)
Reclassification of losses on derivative instruments realized in net income, Net of Tax Amount	110	50	217	50
Net cash flow hedge activity, Before-tax Amount	(2,592)	(761)	3,335	(761)
Net cash flow hedge activity, Tax (Expense) Benefit	663	194	(851)	194
Net cash flow hedge activity, Net of tax Amount	(1,929)	(567)	2,484	(567)
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Before-tax Amount	261	214	522	428
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Tax (Expense) Benefit	(67)	(55)	(134)	(109)
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Net of Tax Amount	194	159	388	319
Total other comprehensive income (loss), Before-tax Amount	7,896	28,534	(36,151)	42,516
Total other comprehensive income (loss), Tax (Expense) Benefit	(860)	(6,853)	10,109	(10,360)
Total other comprehensive income (loss), Net of Tax Amount	7,036	21,681	(26,042)	32,156
Comprehensive income, Before-tax Amount	100,161	60,553	149,970	115,226
Comprehensive income, Tax (Expense) Benefit	(22,865)	(13,776)	(32,046)	(26,090)
Comprehensive income, Net of Tax Amount	$ 77,296	$ 46,777	$ 117,924	$ 89,136

Consolidated Statement of Chang

Consolidated Statement of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Adoption of new accounting standard	Preferred Stock	Common Stock	Common Stock Issuable	Capital Surplus	Retained Earnings	Retained EarningsAdoption of new accounting standard	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2019	$ 1,635,692	$ (3,529)	$ 0	$ 79,014	$ 11,491	$ 1,496,641	$ 40,152	$ (3,529)	$ 8,394
Beginning balance (shares) at Dec. 31, 2019				79,013,729
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	56,980						56,980
Other comprehensive income (loss)	32,156								32,156
Issuance of stock	96,660		96,660
Purchases of common stock	$ (20,782)			$ (827)		(19,955)
Purchases of common stock (in shares)	(826,482)			(826,482)
Common stock dividends	$ (28,613)						(28,613)
Impact of equity-based compensation awards	3,577			$ 62	676	2,839
Impact of equity-based compensation awards (in shares)				62,252
Impact of other United sponsored equity plans	(496)			$ 86	(1,521)	939
Impact of other United sponsored equity plans (in shares)				85,628
Ending balance at Jun. 30, 2020	1,771,645		96,660	$ 78,335	10,646	1,480,464	64,990		40,550
Ending balance (shares) at Jun. 30, 2020				78,335,127
Beginning balance at Mar. 31, 2020	1,640,612		0	$ 78,284	10,534	1,478,719	54,206		18,869
Beginning balance (shares) at Mar. 31, 2020				78,283,544
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,096						25,096
Other comprehensive income (loss)	21,681								21,681
Issuance of stock	$ 96,660		96,660
Purchases of common stock (in shares)	0
Common stock dividends	$ (14,312)						(14,312)
Impact of equity-based compensation awards	1,573			$ 38	11	1,524
Impact of equity-based compensation awards (in shares)				38,247
Impact of other United sponsored equity plans	335			$ 13	101	221
Impact of other United sponsored equity plans (in shares)				13,336
Ending balance at Jun. 30, 2020	1,771,645		96,660	$ 78,335	10,646	1,480,464	64,990		40,550
Ending balance (shares) at Jun. 30, 2020				78,335,127
Beginning balance at Dec. 31, 2020	2,007,530		96,422	$ 86,675	10,855	1,638,999	136,869		37,710
Beginning balance (shares) at Dec. 31, 2020				86,675,279
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	143,966						143,966
Other comprehensive income (loss)	(26,042)								(26,042)
Purchases of common stock	$ (5,101)			$ (150)		(4,951)
Purchases of common stock (in shares)	(150,000)			(150,000)
Preferred stock dividends	$ (3,438)						(3,438)
Common stock dividends	(33,391)						(33,391)
Impact of equity-based compensation awards	2,288			$ 71	647	1,570
Impact of equity-based compensation awards (in shares)				70,845
Impact of other United sponsored equity plans	474			$ 69	(852)	1,257
Impact of other United sponsored equity plans (in shares)				68,770
Ending balance at Jun. 30, 2021	2,086,286		96,422	$ 86,665	10,650	1,636,875	244,006		11,668
Ending balance (shares) at Jun. 30, 2021				86,664,894
Beginning balance at Mar. 31, 2021	2,031,084		96,422	$ 86,777	10,485	1,640,583	192,185		4,632
Beginning balance (shares) at Mar. 31, 2021				86,776,508
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	70,260						70,260
Other comprehensive income (loss)	7,036								7,036
Purchases of common stock	$ (5,101)			$ (150)		(4,951)
Purchases of common stock (in shares)	(150,000)			(150,000)
Preferred stock dividends	$ (1,719)						(1,719)
Common stock dividends	(16,720)						(16,720)
Impact of equity-based compensation awards	1,272			$ 35	71	1,166
Impact of equity-based compensation awards (in shares)				35,675
Impact of other United sponsored equity plans	174			$ 3	94	77
Impact of other United sponsored equity plans (in shares)				2,711
Ending balance at Jun. 30, 2021	$ 2,086,286		$ 96,422	$ 86,665	$ 10,650	$ 1,636,875	$ 244,006		$ 11,668
Ending balance (shares) at Jun. 30, 2021				86,664,894

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Common stock dividends (in dollars per share)	$ 0.19	$ 0.18	$ 0.38	$ 0.36

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating activities:
Net income	$ 143,966	$ 56,980
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion, net	(2,961)	5,205
(Release of) provision for credit losses	(25,869)	55,734
Stock based compensation	3,141	4,256
Deferred income tax expense (benefit)	14,621	(2,356)
Securities gains, net	(41)	0
Gains from sales of other loans, net	(5,153)	(2,714)
Changes in assets and liabilities:
Other assets and accrued interest receivable	20,444	(76,407)
Accrued expenses and other liabilities	7,071	15,929
Loans held for sale	7,239	(40,993)
Net cash provided by operating activities	162,458	15,634
Debt securities held-to-maturity:
Proceeds from maturities and calls	35,590	19,889
Purchases	(468,740)	(43,118)
Debt securities available-for-sale:
Proceeds from sales	78,111	1,000
Proceeds from maturities and calls	456,899	296,744
Purchases	(1,437,481)	(110,481)
Net decrease (increase) in loans	8,861
Net decrease (increase) in loans		(1,306,120)
Equity investments, outflows	(8,432)	(8,583)
Equity investments, inflows	5,026	0
Proceeds from sales of premises and equipment	840	102
Purchases of premises and equipment	(14,565)	(3,655)
Proceeds from sale of other real estate	2,042	278
Other investing activities	767	2,730
Net cash used in investing activities	(1,341,082)	(1,151,214)
Financing activities:
Net increase in deposits	1,096,791	1,805,016
Repayment of long-term debt	(65,632)	0
Proceeds from FHLB advances	5,000	5,000
Repayment of FHLB advances	(5,000)	(5,000)
Proceeds from issuance of senior debentures, net of issuance costs	0	98,638
Proceeds from issuance of common stock for dividend reinvestment and employee benefit plans	320	426
Cash paid for shares withheld to cover payroll taxes upon vesting of restricted stock units	(945)	(1,868)
Proceeds from issuance of Series I preferred stock, net of issuance costs	0	96,660
Repurchase of common stock	(5,101)	(20,782)
Cash dividends on common stock	(32,593)	(28,755)
Cash dividends on preferred stock	(3,438)	0
Net cash provided by financing activities	989,402	1,949,335
Net change in cash and cash equivalents	(189,222)	813,755
Cash and cash equivalents, at beginning of period	1,608,619	515,206
Cash and cash equivalents, at end of period	1,419,397	1,328,961
Significant non-cash investing and financing transactions:
Unsettled government guaranteed loan sales	6,435	289
Transfers of loans to foreclosed properties	$ 1,333	$ 355

Accounting Policies

Accounting Policies	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies United’s accounting and financial reporting policies conform to GAAP and reporting guidelines of banking regulatory authorities. The accompanying interim consolidated financial statements have not been audited. All material intercompany balances and transactions have been eliminated. A more detailed description of United’s accounting policies is included in its 2020 10-K. In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in United’s 2020 10-K.

Accounting Standards Updates an

Accounting Standards Updates and Recently Adopted Standards	6 Months Ended
	Jun. 30, 2021
Accounting Changes and Error Corrections [Abstract]
Accounting Standards Updates and Recently Adopted Standards	Accounting Standards Updates and Recently Adopted Standards Recently Adopted Standards In October 2020, the FASB issued ASU No. 2020-10, Codification Improvements . In addition to consolidating existing disclosure guidance into a single codification section to reduce the likelihood of a required disclosure being missed, this update clarifies the application of select guidance in cases where the original guidance may have been unclear. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In October 2020, the FASB issued ASU No. 2020-08, Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs . This update clarifies that an entity should reevaluate whether a callable debt security meets the criteria to adjust the amortization period of any related premium at each reporting period. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In January 2020, the FASB issued ASU No. 2020-01, Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Emerging Issues Task Force) . This update clarifies whether an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting for the purposes of applying the measurement alternative and how to account for certain forward contracts and purchased options to purchase securities. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes . This update removes several exceptions related to intraperiod tax allocation when there is a loss from continuing operations and income from other items, foreign subsidiaries becoming equity method investments and vice versa, and calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The guidance also amends requirements related to franchise tax that is partially based on income, a step up in the tax basis of goodwill, allocation of consolidated tax expense to a legal entity not subject to tax in its separate financial statements, the effects of enacted changes in tax laws and other minor codification improvements regarding employee stock ownership plans and investments in qualified affordable housing projects. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-14, Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans . The update removes disclosures that are no longer considered cost beneficial, clarifies specific requirements of disclosures, and adds disclosure requirements identified as relevant. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. Recently Issued Standards In July 2021, the FASB issued ASU No. 2021-05, Leases (Topic 842): Lessors - Certain Leases with Variable Lease Payments . The update amends the lease classification requirements for lessors to align them with practice under the former lease accounting standard. Specifically, lessors should classify a lease with variable lease payments that do not depend on a reference index or rate as an operating lease if certain criteria are met. Adoption of this update, which is effective for United as of January 1, 2022, is not expected to have a material impact on the consolidated financial statements.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The amortized cost basis, unrealized gains and losses and fair value of HTM debt securities as of the dates indicated are as follows (in thousands) . Amortized Gross Unrealized Gross Unrealized Fair As of June 30, 2021 U.S. Treasuries $ 19,788 $ 267 $ — $ 20,055 U.S. Government agencies & GSEs 59,709 334 351 59,692 State and political subdivisions 248,768 5,742 1,749 252,761 Residential MBS, Agency & GSEs 223,571 3,706 1,079 226,198 Commercial MBS, Agency & GSEs 285,568 4,126 1,950 287,744 Supranational entities 15,000 38 — 15,038 Total $ 852,404 $ 14,213 $ 5,129 $ 861,488 As of December 31, 2020 U.S. Government agencies & GSEs $ 10,575 $ 26 $ 11 $ 10,590 State and political subdivisions 197,723 7,658 242 205,139 Residential MBS, Agency & GSEs 113,400 4,774 1 118,173 Commercial MBS, Agency & GSEs 98,663 4,874 246 103,291 Total $ 420,361 $ 17,332 $ 500 $ 437,193 The amortized cost basis, unrealized gains and losses, and fair value of AFS debt securities as of the dates indicated are presented below (in thousands) . Amortized Gross Unrealized Gross Unrealized Fair As of June 30, 2021 U.S. Treasuries $ 138,884 $ 3,196 $ — $ 142,080 U.S. Government agencies & GSEs 153,601 871 1,848 152,624 State and political subdivisions 273,433 17,154 1,241 289,346 Residential MBS, Agency & GSEs 1,831,697 21,089 11,809 1,840,977 Residential MBS, Non-agency 132,100 3,972 4 136,068 Commercial MBS, Agency & GSEs 695,417 4,626 8,676 691,367 Commercial MBS, Non-agency 15,219 1,622 — 16,841 Corporate bonds 150,736 1,329 254 151,811 Asset-backed securities 652,093 2,914 340 654,667 Total $ 4,043,180 $ 56,773 $ 24,172 $ 4,075,781 As of December 31, 2020 U.S. Treasuries $ 123,677 $ 4,395 $ — $ 128,072 U.S. Government agencies & GSEs 152,596 701 325 152,972 State and political subdivisions 253,630 20,891 49 274,472 Residential MBS, Agency & GSEs 1,275,551 29,107 766 1,303,892 Residential MBS, Non-agency 174,322 7,499 128 181,693 Commercial MBS, Agency & GSEs 524,852 8,013 597 532,268 Commercial MBS, Non-agency 15,350 1,513 — 16,863 Corporate bonds 70,057 1,711 1 71,767 Asset-backed securities 562,076 1,278 632 562,722 Total $ 3,152,111 $ 75,108 $ 2,498 $ 3,224,721 Securities with a carrying value of $1.15 billion and $1.11 billion were pledged, primarily to secure public deposits, at June 30, 2021 and December 31, 2020, respectively. The following table summarizes HTM debt securities in an unrealized loss position as of the dates indicated ( in thousands) . Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized As of June 30, 2021 U.S. Government agencies & GSEs $ 10,143 $ 351 $ — $ — $ 10,143 $ 351 State and political subdivisions 85,484 1,749 — — 85,484 1,749 Residential MBS, Agency & GSEs 89,888 1,078 120 1 90,008 1,079 Commercial MBS, Agency & GSEs 125,226 1,950 — — 125,226 1,950 Total unrealized loss position $ 310,741 $ 5,128 $ 120 $ 1 $ 310,861 $ 5,129 As of December 31, 2020 U.S. Government agencies & GSEs $ 4,677 $ 11 $ — $ — $ 4,677 $ 11 State and political subdivisions 14,870 242 — — 14,870 242 Residential MBS, Agency & GSEs 999 1 — — 999 1 Commercial MBS, Agency & GSEs 24,956 236 1,352 10 26,308 246 Total unrealized loss position $ 45,502 $ 490 $ 1,352 $ 10 $ 46,854 $ 500 The following table summarizes AFS debt securities in an unrealized loss position as of the dates indicated (in thousands) . Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized As of June 30, 2021 U.S. Government agencies & GSEs $ 78,309 $ 1,848 $ — $ — $ 78,309 $ 1,848 State and political subdivisions 52,132 1,241 — — 52,132 1,241 Residential MBS, Agency & GSEs 897,499 11,799 847 10 898,346 11,809 Residential MBS, Non-agency — — 2,455 4 2,455 4 Commercial MBS, Agency & GSEs 457,568 8,633 1,025 43 458,593 8,676 Corporate bonds 56,854 254 — — 56,854 254 Asset-backed securities 116,960 305 24,710 35 141,670 340 Total unrealized loss position $ 1,659,322 $ 24,080 $ 29,037 $ 92 $ 1,688,359 $ 24,172 As of December 31, 2020 U.S. Government agencies & GSEs $ 27,952 $ 324 $ 607 $ 1 $ 28,559 $ 325 State and political subdivisions 9,402 49 — — 9,402 49 Residential MBS, Agency & GSEs 232,199 766 — — 232,199 766 Residential MBS, Non-agency 2,331 128 — — 2,331 128 Commercial MBS, Agency & GSEs 89,918 597 — — 89,918 597 Corporate bonds 1,410 1 — — 1,410 1 Asset-backed securities 87,305 28 53,587 604 140,892 632 Total unrealized loss position $ 450,517 $ 1,893 $ 54,194 $ 605 $ 504,711 $ 2,498 At June 30, 2021, there were 232 AFS debt securities and 49 HTM debt securities that were in an unrealized loss position. United does not intend to sell nor does it believe it will be required to sell securities in an unrealized loss position prior to the recovery of their amortized cost basis. Unrealized losses at June 30, 2021 were primarily attributable to changes in interest rates. At June 30, 2021 and December 31, 2020, calculated credit losses and, thus, the related ACL on HTM debt securities were not material due to the high credit quality of the portfolio, which included securities issued or guaranteed by U.S. Government agencies, GSEs, high credit quality municipalities and supranational entities. As a result, no ACL was recorded on the HTM portfolio at June 30, 2021 or December 31, 2020. In addition, based on the assessments performed at June 30, 2021 and December 31, 2020, there was no ACL required related to the AFS portfolio. The following table presents accrued interest receivable for the periods indicated on HTM and AFS debt securities (in thousands) , which was excluded from the estimate of credit losses. Accrued Interest Receivable June 30, 2021 December 31, 2020 HTM $ 2,886 $ 1,784 AFS 9,809 9,114 The amortized cost and fair value of AFS and HTM debt securities at June 30, 2021, by contractual maturity, are presented in the following table (in thousands) . Expected maturities may differ from contractual maturities because issuers and borrowers may have the right to call or prepay obligations. AFS HTM Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year: U.S. Treasuries $ 44,930 $ 45,341 $ — $ — U.S. Government agencies & GSEs 279 281 — — State and political subdivisions 20,000 20,000 1,700 1,718 Corporate bonds 11,534 11,556 — — 76,743 77,178 1,700 1,718 1 to 5 years: U.S. Treasuries 79,030 81,706 — — U.S. Government agencies & GSEs 13,835 13,894 — — State and political subdivisions 43,350 45,580 14,501 15,763 Corporate bonds 71,166 71,855 — — 207,381 213,035 14,501 15,763 5 to 10 years: U.S. Treasuries 14,924 15,033 19,788 20,055 U.S. Government agencies & GSEs 82,724 81,373 29,604 29,879 State and political subdivisions 86,931 91,420 31,126 32,227 Corporate bonds 67,256 67,515 — — Supranational entities — — 15,000 15,038 251,835 255,341 95,518 97,199 More than 10 years: U.S. Government agencies & GSEs 56,763 57,076 30,105 29,813 State and political subdivisions 123,152 132,346 201,441 203,053 Corporate bonds 780 885 — — 180,695 190,307 231,546 232,866 Debt securities not due at a single maturity date: Asset-backed securities 652,093 654,667 — — Residential MBS 1,963,797 1,977,045 223,571 226,198 Commercial MBS 710,636 708,208 285,568 287,744 Total $ 4,043,180 $ 4,075,781 $ 852,404 $ 861,488 Realized gains and losses are derived using the specific identification method for determining the cost of securities sold. The following table summarizes AFS securities sales activity for the three and six months ended June 30, 2021 and 2020 (in thousands). Three Months Ended Six Months Ended 2021 2020 2021 2020 Proceeds from sales $ 78,111 $ — $ 78,111 $ 1,000 Gross realized gains $ 641 $ — $ 641 $ — Gross realized losses (600) — (600) — Securities gains, net $ 41 $ — $ 41 $ — Income tax expense attributable to sales $ 14 $ — $ 14 $ —

Loans and Leases and Allowance

Loans and Leases and Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2021
Receivables [Abstract]
Loans and Leases and Allowance for Credit Losses	Loans and Leases and Allowance for Credit Losses Major classifications of the loan and lease portfolio (collectively referred to as the “loan portfolio” or “loans”) are summarized as of the dates indicated as follows (in thousands) . June 30, 2021 December 31, 2020 Owner occupied commercial real estate $ 2,149,371 $ 2,090,443 Income producing commercial real estate 2,550,243 2,540,750 Commercial & industrial (1) 2,234,646 2,498,560 Commercial construction 926,809 967,305 Equipment financing 968,805 863,830 Total commercial 8,829,874 8,960,888 Residential mortgage 1,472,608 1,284,920 HELOC 660,881 697,117 Residential construction 288,708 281,430 Consumer 138,675 146,460 Total loans 11,390,746 11,370,815 Less allowance for credit losses - loans (111,616) (137,010) Loans, net $ 11,279,130 $ 11,233,805 (1) Commercial and industrial loans as of June 30, 2021 and December 31, 2020 included $472 million and $646 million of PPP loans, respectively. Accrued interest receivable related to loans totaled $29.7 million and $35.5 million at June 30, 2021 and December 31, 2020, respectively, and was reported in accrued interest receivable on the consolidated balance sheets. At June 30, 2021 and December 31, 2020, the loan portfolio was subject to blanket pledges on certain qualifying loan types with the FHLB and FRB to secure contingent funding sources. The following table presents loans held for investment that were sold in the periods indicated (in thousands). The gains and losses on these loan sales were included in noninterest income on the consolidated statements of income. Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Guaranteed portion of SBA/USDA loans $ 32,303 $ 14,035 $ 43,648 $ 18,069 Equipment financing receivables 18,908 1,704 19,967 23,921 Total $ 51,211 $ 15,739 $ 63,615 $ 41,990 At June 30, 2021 and December 31, 2020, equipment financing assets included leases of $37.8 million and $36.8 million, respectively. The components of the net investment in leases, which included both sales-type and direct financing, are presented below (in thousands) . June 30, 2021 December 31, 2020 Minimum future lease payments receivable $ 39,948 $ 38,934 Estimated residual value of leased equipment 3,269 3,263 Initial direct costs 668 672 Security deposits (672) (727) Purchase accounting premium 69 117 Unearned income (5,525) (5,457) Net investment in leases $ 37,757 $ 36,802 Minimum future lease payments expected to be received from equipment financing lease contracts as of June 30, 2021 were as follows (in thousands) : Year Remainder of 2021 $ 8,161 2022 13,830 2023 9,601 2024 5,161 2025 2,741 Thereafter 454 Total $ 39,948 Nonaccrual and Past Due Loans The following table presents the aging of the amortized cost basis in loans by aging category and accrual status as of the dates indicated (in thousands) . Past due status is based on contractual terms of the loan. The accrual of interest is generally discontinued when a loan becomes 90 days past due. Loans with active COVID-19 deferrals are not reported as past due to the extent they are in compliance with the deferral terms. Accruing Current Loans Loans Past Due 30 - 59 Days 60 - 89 Days > 90 Days Nonaccrual Loans Total Loans As of June 30, 2021 Owner occupied commercial real estate $ 2,141,403 $ 1,666 $ 174 $ — $ 6,128 $ 2,149,371 Income producing commercial real estate 2,536,332 592 219 — 13,100 2,550,243 Commercial & industrial 2,225,062 1,004 17 — 8,563 2,234,646 Commercial construction 925,376 199 5 — 1,229 926,809 Equipment financing 965,350 911 773 — 1,771 968,805 Total commercial 8,793,523 4,372 1,188 — 30,791 8,829,874 Residential mortgage 1,456,280 2,090 753 — 13,485 1,472,608 HELOC 658,224 1,015 209 — 1,433 660,881 Residential construction 288,032 369 — — 307 288,708 Consumer 138,287 247 34 — 107 138,675 Total loans $ 11,334,346 $ 8,093 $ 2,184 $ — $ 46,123 $ 11,390,746 As of December 31, 2020 Owner occupied commercial real estate $ 2,079,845 $ 2,013 $ 3 $ — $ 8,582 $ 2,090,443 Income producing commercial real estate 2,522,743 1,608 1,250 — 15,149 2,540,750 Commercial & industrial 2,480,483 1,176 267 — 16,634 2,498,560 Commercial construction 964,947 231 382 — 1,745 967,305 Equipment financing 856,985 2,431 1,009 — 3,405 863,830 Total commercial 8,905,003 7,459 2,911 — 45,515 8,960,888 Residential mortgage 1,265,019 5,549 1,494 — 12,858 1,284,920 HELOC 692,504 1,942 184 — 2,487 697,117 Residential construction 280,551 365 — — 514 281,430 Consumer 145,770 429 36 — 225 146,460 Total loans $ 11,288,847 $ 15,744 $ 4,625 $ — $ 61,599 $ 11,370,815 The following table presents nonaccrual loans by loan class for the periods indicated (in thousands) . Nonaccrual Loans June 30, 2021 December 31, 2020 With no allowance With an allowance Total With no allowance With an allowance Total Owner occupied commercial real estate $ 3,865 $ 2,263 $ 6,128 $ 6,614 $ 1,968 $ 8,582 Income producing commercial real estate 12,515 585 13,100 10,008 5,141 15,149 Commercial & industrial 7,143 1,420 8,563 2,004 14,630 16,634 Commercial construction 750 479 1,229 1,339 406 1,745 Equipment financing — 1,771 1,771 156 3,249 3,405 Total commercial 24,273 6,518 30,791 20,121 25,394 45,515 Residential mortgage 3,279 10,206 13,485 1,855 11,003 12,858 HELOC 117 1,316 1,433 1,329 1,158 2,487 Residential construction — 307 307 274 240 514 Consumer 1 106 107 181 44 225 Total $ 27,670 $ 18,453 $ 46,123 $ 23,760 $ 37,839 $ 61,599 Risk Ratings United categorizes commercial loans, with the exception of equipment financing receivables, into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, public information, and current industry and economic trends, among other factors. United analyzes loans individually by classifying the loans as to credit risk. This analysis is performed on a continual basis. United uses the following definitions for its risk ratings: Pass. Loans in this category are considered to have a low probability of default and do not meet the criteria of the risk categories below. Special Mention. Loans in this category are presently protected from apparent loss; however, weaknesses exist that could cause future impairment, including the deterioration of financial ratios, past due status and questionable management capabilities. These loans require more than the ordinary amount of supervision. Collateral values generally afford adequate coverage, but may not be immediately marketable. Substandard. These loans are inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged. Specific and well-defined weaknesses exist that may include poor liquidity and deterioration of financial ratios. The loan may be past due and related deposit accounts experiencing overdrafts. There is the distinct possibility that United will sustain some loss if deficiencies are not corrected. If possible, immediate corrective action is taken. Doubtful. Specific weaknesses characterized as Substandard that are severe enough to make collection in full highly questionable and improbable. There is no reliable secondary source of full repayment. Loss. Loans categorized as Loss have the same characteristics as Doubtful; however, probability of loss is certain. Loans classified as Loss are charged off. Equipment Financing Receivables and Consumer Purpose Loans. United applies a pass / fail grading system to all equipment financing receivables and consumer purpose loans. Under this system, loans that are on nonaccrual status, become past due 90 days, or are in bankruptcy are classified as “fail” and all other loans are classified as “pass”. For reporting purposes, loans in these categories that are classified as “fail” are reported as substandard and all other loans are reported as pass. Based on the most recent analysis performed, the amortized cost of loans by risk category by vintage year as of the date indicated is as follows (in thousands) . Term Loans by Origination Year Revolvers Revolvers converted to term loans Total As of June 30, 2021 2021 2020 2019 2018 2017 Prior Pass Owner occupied commercial real estate $ 348,878 $ 692,889 $ 300,165 $ 173,797 $ 163,854 $ 309,564 $ 48,247 $ 10,973 $ 2,048,367 Income producing commercial real estate 349,737 772,304 338,003 272,816 214,741 273,090 33,109 12,088 2,265,888 Commercial & industrial 684,472 426,442 195,329 173,366 62,870 103,609 490,906 3,737 2,140,731 Commercial construction 175,452 300,989 167,938 124,411 28,142 12,596 8,054 2,030 819,612 Equipment financing 293,882 331,475 220,386 92,083 25,113 3,634 — — 966,573 Total commercial 1,852,421 2,524,099 1,221,821 836,473 494,720 702,493 580,316 28,828 8,241,171 Residential mortgage 448,846 416,688 136,631 91,877 88,511 268,040 14 4,883 1,455,490 HELOC — — — — — — 643,249 15,303 658,552 Residential construction 135,105 128,013 5,196 3,724 3,776 12,244 56 53 288,167 Consumer 33,625 37,841 16,905 8,636 2,515 2,633 36,126 132 138,413 2,469,997 3,106,641 1,380,553 940,710 589,522 985,410 1,259,761 49,199 10,781,793 Special Mention Owner occupied commercial real estate 10,313 5,379 15,503 3,839 4,036 8,610 247 286 48,213 Income producing commercial real estate 12,003 28,577 45,452 37,606 19,349 29,947 — — 172,934 Commercial & industrial 18,804 13,050 7,400 243 1,208 293 18,944 802 60,744 Commercial construction 679 18,763 12,943 17,248 38,377 63 — — 88,073 Equipment financing — — — — — — — — — Total commercial 41,799 65,769 81,298 58,936 62,970 38,913 19,191 1,088 369,964 Residential mortgage — — — — — — — — — HELOC — — — — — — — — — Residential construction — — — — — — — — — Consumer — — — — — — — — — 41,799 65,769 81,298 58,936 62,970 38,913 19,191 1,088 369,964 Substandard Owner occupied commercial real estate 10,561 1,636 11,185 8,450 6,871 12,267 1,300 521 52,791 Income producing commercial real estate 16,656 34,733 2,681 16,799 8,718 31,744 — 90 111,421 Commercial & industrial 1,238 1,638 4,755 7,122 1,882 7,081 8,989 466 33,171 Commercial construction 1,035 432 712 13,496 — 2,444 — 1,005 19,124 Equipment financing 248 786 656 472 54 16 — — 2,232 Total commercial 29,738 39,225 19,989 46,339 17,525 53,552 10,289 2,082 218,739 Residential mortgage 786 1,653 2,336 3,778 1,440 6,340 — 785 17,118 HELOC — — — — — — 68 2,261 2,329 Residential construction — 39 33 52 2 415 — — 541 Consumer — 6 42 30 41 120 — 23 262 30,524 40,923 22,400 50,199 19,008 60,427 10,357 5,151 238,989 Total $ 2,542,320 $ 3,213,333 $ 1,484,251 $ 1,049,845 $ 671,500 $ 1,084,750 $ 1,289,309 $ 55,438 $ 11,390,746 Term Loans by Origination Year Revolvers Revolvers converted to term loans Total As of December 31, 2020 2020 2019 2018 2017 2016 Prior Pass Owner occupied commercial real estate $ 707,501 $ 368,615 $ 231,316 $ 197,778 $ 201,362 $ 229,667 $ 56,273 $ 9,072 $ 2,001,584 Income producing commercial real estate 815,799 376,911 361,539 277,769 206,068 198,080 28,542 12,128 2,276,836 Commercial & industrial 1,092,767 287,857 263,439 115,790 92,968 58,359 515,593 3,777 2,430,550 Commercial construction 314,154 217,643 226,308 53,708 30,812 21,985 20,278 3,947 888,835 Equipment financing 413,653 270,664 125,869 39,982 9,404 445 — — 860,017 Total commercial 3,343,874 1,521,690 1,208,471 685,027 540,614 508,536 620,686 28,924 8,457,822 Residential mortgage 468,945 195,213 125,492 120,944 122,013 230,771 18 5,393 1,268,789 HELOC — — — — — — 675,878 17,581 693,459 Residential construction 225,727 30,646 4,026 4,544 3,172 12,546 — 64 280,725 Consumer 54,997 25,528 14,206 4,531 3,595 1,677 41,445 76 146,055 4,093,543 1,773,077 1,352,195 815,046 669,394 753,530 1,338,027 52,038 10,846,850 Special Mention Owner occupied commercial real estate 8,759 4,088 4,221 10,025 11,138 4,728 100 — 43,059 Income producing commercial real estate 35,471 42,831 39,954 13,238 24,164 11,337 — 1,681 168,676 Commercial & industrial 1,451 16,315 2,176 630 459 17 6,464 — 27,512 Commercial construction 21,366 272 816 23,292 11,775 477 — — 57,998 Equipment financing — — — — — — — — — Total commercial 67,047 63,506 47,167 47,185 47,536 16,559 6,564 1,681 297,245 Residential mortgage — — — — — — — — — HELOC — — — — — — — — — Residential construction — — — — — — — — — Consumer — — — — — — — — — 67,047 63,506 47,167 47,185 47,536 16,559 6,564 1,681 297,245 Substandard Owner occupied commercial real estate 6,586 10,473 7,596 3,717 6,753 8,473 1,528 674 45,800 Income producing commercial real estate 45,125 8,940 2,179 5,034 31,211 2,652 — 97 95,238 Commercial & industrial 1,545 5,536 6,193 1,684 1,292 1,485 22,170 593 40,498 Commercial construction 2,466 735 13,741 340 1,931 250 — 1,009 20,472 Equipment financing 631 1,392 1,371 306 96 17 — — 3,813 Total commercial 56,353 27,076 31,080 11,081 41,283 12,877 23,698 2,373 205,821 Residential mortgage 2,049 2,106 3,174 1,369 679 5,860 — 894 16,131 HELOC — — — — — — 265 3,393 3,658 Residential construction 106 37 54 4 124 380 — — 705 Consumer — 97 49 60 78 98 — 23 405 58,508 29,316 34,357 12,514 42,164 19,215 23,963 6,683 226,720 Total $ 4,219,098 $ 1,865,899 $ 1,433,719 $ 874,745 $ 759,094 $ 789,304 $ 1,368,554 $ 60,402 $ 11,370,815 Troubled Debt Restructurings and Other Modifications As of June 30, 2021 and December 31, 2020, United had TDRs totaling $57.3 million and $61.6 million, respectively. As of June 30, 2021 and December 31, 2020, United had remaining deferrals related to the COVID-19 pandemic of approximately $17.8 million and $70.7 million, respectively, which generally represented payment deferrals for up to 90 days. To the extent that these deferrals qualified under either the CARES Act or interagency guidance, they were not considered new TDRs. Loans modified under the terms of a TDR during the three and six months ended June 30, 2021 and 2020 are presented in the following table. In addition, the table presents loans modified under the terms of a TDR that defaulted (became 90 days or more delinquent or otherwise in default of modified terms) during the periods presented and were initially restructured within one year prior to default (dollars in thousands). New TDRs Post-Modification Amortized Cost by Type of Modification TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted Number of Contracts Rate Structure Other Total Number of Amortized Cost Three Months Ended June 30, 2021 Owner occupied commercial real estate 1 $ — $ 543 $ — $ 543 — $ — Income producing commercial real estate 1 — — 378 378 — — Commercial & industrial 2 — 365 — 365 — — Commercial construction — — — — — — — Equipment financing 8 — 326 — 326 5 138 Total commercial 12 — 1,234 378 1,612 5 138 Residential mortgage 5 — 322 — 322 — — HELOC — — — — — 1 49 Residential construction — — — — — — — Consumer — — — — — — — Total loans 17 $ — $ 1,556 $ 378 $ 1,934 6 $ 187 Six Months Ended June 30, 2021 Owner occupied commercial real estate 1 $ — $ 543 $ — $ 543 — $ — Income producing commercial real estate 3 — — 1,697 1,697 — — Commercial & industrial 4 — 365 103 468 1 11 Commercial construction 1 — 309 — 309 — — Equipment financing 36 — 2,462 — 2,462 8 200 Total commercial 45 — 3,679 1,800 5,479 9 211 Residential mortgage 6 — 391 — 391 3 413 HELOC — — — — — 1 49 Residential construction — — — — — — — Consumer — — — — — — — Total loans 51 $ — $ 4,070 $ 1,800 $ 5,870 13 $ 673 Three Months Ended June 30, 2020 Owner occupied commercial real estate 2 $ — $ — $ 546 $ 546 — $ — Income producing commercial real estate — — — — — 1 5,998 Commercial & industrial 1 — — 15 15 1 627 Commercial construction 1 — 255 — 255 — — Equipment financing 129 — 3,471 — 3,471 6 310 Total commercial 133 — 3,726 561 4,287 8 6,935 Residential mortgage 6 — 644 — 644 — — HELOC — — — — — — — Residential construction — — — — — — — Consumer 1 — — 7 7 — — Total loans 140 $ — $ 4,370 $ 568 $ 4,938 8 $ 6,935 Six Months Ended June 30, 2020 Owner occupied commercial real estate 3 $ — $ — $ 1,536 $ 1,536 — $ — Income producing commercial real estate 3 — 67 165 232 1 5,998 Commercial & industrial 1 — — 15 15 2 633 Commercial construction 1 — 255 — 255 — — Equipment financing 136 — 3,905 — 3,905 6 310 Total commercial 144 — 4,227 1,716 5,943 9 6,941 Residential mortgage 11 — 922 — 922 — — HELOC — — — — — — — Residential construction — — — — — — — Consumer 3 — — 18 18 1 3 Total loans 158 $ — $ 5,149 $ 1,734 $ 6,883 10 $ 6,944 Allowance for Credit Losses The ACL for loans represents management’s estimate of life of loan credit losses in the portfolio as of the end of the period. The ACL related to unfunded commitments is included in other liabilities in the consolidated balance sheet. The following table presents the balance and activity in the ACL by portfolio segment for the periods indicated (in thousands) . Three Months Ended June 30, 2021 2020 Beginning Balance Charge-Offs Recoveries (Release) Provision Ending Balance Beginning Balance Charge-Offs Recoveries (Release) Provision Ending Balance Owner occupied commercial real estate $ 19,282 $ (1) $ 156 $ (2,145) $ 17,292 $ 11,000 $ — $ 466 $ 3,126 $ 14,592 Income producing commercial real estate 34,911 (52) 213 (4,105) 30,967 16,584 (4,589) 41 9,663 21,699 Commercial & industrial 21,750 (857) 797 (5,276) 16,414 10,831 (254) 291 (2,279) 8,589 Commercial construction 10,572 (46) 339 (1,685) 9,180 9,556 (239) 117 5,080 14,514 Equipment financing 17,200 (1,188) 887 1,201 18,100 14,738 (2,085) 420 7,232 20,305 Residential mortgage 14,580 — 194 (3,809) 10,965 11,063 (50) 56 1,757 12,826 HELOC 6,880 (34) 146 (635) 6,357 6,887 (98) 196 1,702 8,687 Residential construction 1,362 — 33 523 1,918 816 (32) 37 1,176 1,997 Consumer 329 (353) 222 225 423 430 (712) 286 456 460 ACL - loans 126,866 (2,531) 2,987 (15,706) 111,616 81,905 (8,059) 1,910 27,913 103,669 ACL - unfunded commitments 8,726 — — 2,118 10,844 6,470 — — 5,630 12,100 Total ACL $ 135,592 $ (2,531) $ 2,987 $ (13,588) $ 122,460 $ 88,375 $ (8,059) $ 1,910 $ 33,543 $ 115,769 Six Months Ended June 30, 2021 2020 Beginning Balance Charge-Offs Recoveries (Release) Provision Ending Balance Dec. 31, 2019 Adoption of CECL Beginning Charge- Recoveries (Release) Ending Owner occupied commercial real estate $ 20,673 $ (1) $ 396 $ (3,776) $ 17,292 $ 11,404 $ (1,616) $ 9,788 $ (6) $ 1,500 $ 3,310 $ 14,592 Income producing commercial real estate 41,737 (1,059) 229 (9,940) 30,967 12,306 (30) 12,276 (5,000) 182 14,241 21,699 Commercial & industrial 22,019 (3,751) 6,444 (8,298) 16,414 5,266 4,012 9,278 (7,815) 667 6,459 8,589 Commercial construction 10,952 (224) 495 (2,043) 9,180 9,668 (2,583) 7,085 (239) 258 7,410 14,514 Equipment financing 16,820 (3,246) 1,434 3,092 18,100 7,384 5,871 13,255 (3,948) 776 10,222 20,305 Residential mortgage 15,341 (215) 317 (4,478) 10,965 8,081 1,569 9,650 (334) 331 3,179 12,826 HELOC 8,417 (34) 219 (2,245) 6,357 4,575 1,919 6,494 (118) 299 2,012 8,687 Residential construction 764 (10) 103 1,061 1,918 2,504 (1,771) 733 (54) 71 1,247 1,997 Consumer 287 (824) 488 472 423 901 (491) 410 (1,350) 517 883 460 ACL - loans 137,010 (9,364) 10,125 (26,155) 111,616 62,089 6,880 68,969 (18,864) 4,601 48,963 103,669 ACL - unfunded commitments 10,558 — — 286 10,844 3,458 1,871 5,329 — — 6,771 12,100 Total ACL $ 147,568 $ (9,364) $ 10,125 $ (25,869) $ 122,460 $ 65,547 $ 8,751 $ 74,298 $ (18,864) $ 4,601 $ 55,734 $ 115,769 At both June 30, 2021 and December 31, 2020, United used a one-year reasonable and supportable forecast period. Expected credit losses were estimated using a regression model for each segment based on historical data from peer banks combined with a third party vendor’s economic forecast to predict the change in credit losses. These results were then combined with a starting value that was based on United’s recent default experience, which was adjusted for select portfolios based on expectations of future performance. At June 30, 2021, the third party vendor’s forecast, which was representative of a baseline scenario, improved significantly from December 31, 2020, including the unemployment rate which has a significant impact on our models and led to the negative provision for loan losses in the second quarter and year-to-date. United adjusted the economic forecast by eliminating the initial spike in unemployment to account for the impact of government stimulus programs, which mitigated some of the negative impact on forecasted losses as the unemployment rate was rising and had the opposite effect as the unemployment rate was improving. In addition, United applied qualitative factors to income producing commercial real estate, owner occupied commercial real estate, equipment finance and commercial construction portfolios to compensate for elevated special mention and substandard loan levels. For periods beyond the reasonable and supportable forecast period of one year, United reverted to historical credit loss information on a straight line basis over two years. For all collateral types excluding residential mortgage, United reverted to through-the-cycle

Derivatives and Hedging Activit

Derivatives and Hedging Activities	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities The table below presents the fair value of derivative financial instruments as of the dates indicated as well as their classification on the consolidated balance sheets (in thousands) : June 30, 2021 December 31, 2020 Notional Amount Fair Value Notional Amount Fair Value Derivative Asset Derivative Liability Derivative Asset Derivative Liability Derivatives designated as hedging instruments: Cash flow hedge of subordinated debt $ 100,000 $ 5,682 $ — $ 100,000 $ 3,378 $ — Cash flow hedge of trust preferred securities 20,000 — — 20,000 — — Fair value hedge of brokered time deposits 10,000 — — 20,000 — — Total 130,000 5,682 — 140,000 3,378 — Derivatives not designated as hedging instruments: Customer derivative positions 1,276,926 45,358 6,758 1,329,271 72,508 17 Dealer offsets to customer derivative positions 1,276,926 451 16,094 1,329,271 1 24,614 Risk participations 61,673 3 22 48,843 28 12 Mortgage banking - loan commitment 160,535 5,191 — 253,243 10,751 — Mortgage banking - forward sales commitment 324,474 109 293 325,145 — 1,964 Bifurcated embedded derivatives 51,935 1,695 — 51,935 — 1,449 Dealer offsets to bifurcated embedded derivatives 51,935 — 3,922 51,935 — 947 Total 3,204,404 52,807 27,089 3,389,643 83,288 29,003 Total derivatives $ 3,334,404 $ 58,489 $ 27,089 $ 3,529,643 $ 86,666 $ 29,003 Total gross derivative instruments $ 58,489 $ 27,089 $ 86,666 $ 29,003 Less: Amounts subject to master netting agreements (480) (480) (114) (114) Less: Cash collateral received/pledged (5,827) (20,295) (3,200) (27,092) Net amount $ 52,182 $ 6,314 $ 83,352 $ 1,797 United clears certain derivatives centrally through the CME. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives’ exposure rather than as collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero. Hedging Derivatives Cash Flow Hedges of Interest Rate Risk United enters into cash flow hedges to mitigate exposure to the variability of future cash flows or other forecasted transactions. As of June 30, 2021 and December 31, 2020 United utilized interest rate caps and swaps to hedge the variability of cash flows due to changes in interest rates on certain of its variable-rate subordinated debt and trust preferred securities. United considers these derivatives to be highly effective at achieving offsetting changes in cash flows attributable to changes in interest rates. Therefore, changes in the fair value of these derivative instruments are recognized in OCI. Gains and losses related to changes in fair value are reclassified into earnings in the periods the hedged forecasted transactions occur. Losses representing amortization of the premium recorded on cash flow hedges, which is a component excluded from the assessment of effectiveness, are recognized in earnings on a straight-line basis in the same caption as the hedged item over the term of the hedge. Over the next twelve months, United expects to reclassify $595,000 of losses from AOCI into earnings related to these agreements. Fair Value Hedges of Interest Rate Risk United is exposed to changes in the fair value of certain of its fixed-rate obligations due to changes in interest rates. United uses interest rate derivatives to manage its exposure to changes in fair value on these instruments attributable to changes in interest rates. For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. United includes the gain or loss on the hedged items in the same income statement line item as the offsetting loss or gain on the related derivatives. At June 30, 2021 and December 31, 2020, United had interest rate swaps that were designated as fair value hedges of fixed-rate brokered time deposits. The swaps involved the receipt of fixed-rate amounts from a counterparty in exchange for United making variable rate payments over the life of the agreements. In certain cases, the estate of deceased brokered certificate of deposit holders may put the certificate of deposit back to United at par upon the death of the holder. When these events (estate puts) occur, a gain or loss is recognized for the difference between the fair value and the par amount of the deposits put back. The change in the fair value of brokered time deposits that are being hedged in fair value hedging relationships reported in the table above includes gains and losses from estate puts. The table below presents the effect of derivatives in hedging relationships, all of which are interest rate contracts, on the consolidated statement of income for the periods indicated (in thousands) . Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Total interest expense presented in the consolidated statements of income $ (7,433) $ (14,301) $ (16,911) $ (32,242) Effect of hedging relationships on interest expense: Net income recognized on fair value hedges 46 213 124 218 Net expense recognized on cash flow hedges (1) (147) (67) (291) (67) (1) Includes $118,000 and $234,000 of premium amortization expense excluded from the assessment of hedge effectiveness for the three and six months ended June 30, 2021, respectively. Includes $92,000 of premium amortization expense excluded from the assessment of hedge effectiveness for the three and six months ended June 30, 2020. The table below presents the carrying amount of hedged fixed-rate brokered time deposits and cumulative fair value hedging adjustments included in the carrying amount of the hedged liability for the periods presented (in thousands) . June 30, 2021 December 31, 2020 Balance Sheet Location Carrying amount of Assets (Liabilities) Hedge Accounting Basis Adjustment Carrying amount of Assets (Liabilities) Hedge Accounting Basis Adjustment Deposits $ (10,103) $ (112) $ (20,216) $ (235) Derivatives Not Designated as Hedging Instruments Customer derivative positions include swaps, caps, and collars between United and certain commercial loan customers with offsetting positions to dealers under a back-to-back program. In addition, United occasionally enters into credit risk participation agreements with counterparty banks to accept or transfer a portion of the credit risk related to interest rate swaps. The agreements, which are typically executed in conjunction with a participation in a loan with the same customer, allow customers to execute an interest rate swap with one bank while allowing for the distribution of the credit risk among participating members. United also has three interest rate swap contracts that are not designated as hedging instruments but are economic hedges of market-linked brokered certificates of deposit. The market-linked brokered certificates of deposit contain embedded derivatives that are bifurcated from the host instruments and are marked to market through earnings. The fair value marks on the market-linked swaps and the bifurcated embedded derivatives tend to move in opposite directions with changes in 90-day LIBOR and therefore provide an economic hedge. In addition, United originates certain residential mortgage loans with the intention of selling these loans. Between the time United enters into an interest-rate lock commitment to originate a residential mortgage loan that is to be held for sale and the time the loan is funded and eventually sold, United is subject to the risk of variability in market prices. United enters into forward sale agreements to mitigate risk and to protect the expected gain on the eventual loan sale. The commitments to originate residential mortgage loans and forward loan sales commitments are freestanding derivative instruments. Fair value adjustments on these derivative instruments are recorded within mortgage loan gains and other related fee income in the consolidated statements of income. The table below presents the gains and losses recognized in income on derivatives not designated as hedging instruments for the periods indicated (in thousands) . Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Three Months Ended Six Months Ended 2021 2020 2021 2020 Customer derivatives and dealer offsets Other noninterest income $ 162 $ 1,168 $ 2,059 $ 2,592 Bifurcated embedded derivatives and dealer offsets Other noninterest income (42) (28) 417 (223) Mortgage banking derivatives Mortgage loan revenue (3,494) 929 342 100 Risk participations Other noninterest income 98 14 (107) (3) $ (3,276) $ 2,083 $ 2,711 $ 2,466 Credit-Risk-Related Contingent Features United manages its credit exposure on derivatives transactions by entering into a bilateral credit support agreement with each non-customer counterparty. The credit support agreements require collateralization of exposures beyond specified minimum threshold amounts. The details of these agreements, including the minimum thresholds, vary by counterparty. United’s agreements with each of its derivative counterparties provide that if either party defaults on any of its indebtedness, then it could also be declared in default on its derivative obligations. The agreements with derivative counterparties also include provisions that if not met, could result in United being declared in default. United has agreements with certain of its derivative counterparties that provide that if United fails to maintain its status as a well-capitalized institution or is subject to a prompt corrective action directive, the counterparty could terminate the derivative positions and United would be required to settle its obligations under the agreements. Derivatives that are centrally cleared do not have credit-risk-related features that would require additional collateral if United’s credit rating were downgraded.

Assets and Liabilities Measured

Assets and Liabilities Measured at Fair Value	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value	Assets and Liabilities Measured at Fair Value Fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair value measurements, United uses a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy). United has processes in place to review the significant valuation inputs and to reassess how the instruments are classified in the valuation framework. Fair Value Hierarchy Level 1 Valuation is based upon quoted prices (unadjusted) in active markets for identical assets or liabilities that United has the ability to access. Level 2 Valuation is based upon quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 Valuation is generated from model-based techniques that use at least one significant assumption based on unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances when the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. The following is a description of the valuation methodologies used for assets and liabilities recorded at fair value. Investment Securities AFS debt securities and equity securities with readily determinable fair values are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include MBS issued by GSEs, municipal bonds, corporate debt securities, asset-backed securities and supranational entity securities and are valued based on observable inputs that include: quoted market prices for similar assets, quoted market prices that are not in an active market, or other inputs that are observable in the market and can be corroborated by observable market data for substantially the full term of the securities. Securities classified as Level 3 include those traded in less liquid markets and are valued based on estimates obtained from broker-dealers that are not directly observable or models which incorporate unobservable inputs. Deferred Compensation Plan Assets and Liabilities Included in other assets in the consolidated balance sheet are assets related to employee deferred compensation plans. The assets associated with these plans are invested in mutual funds and classified as Level 1. Deferred compensation liabilities, also classified as Level 1, are carried at the fair value of the obligation to the employee, which mirrors the fair value of the invested assets and is included in other liabilities in the consolidated balance sheet. Mortgage Loans Held for Sale United has elected the fair value option for most of its newly originated mortgage loans held for sale in order to reduce certain timing differences and better match changes in fair values of the loans with changes in the value of derivative instruments used to economically hedge them. The fair value of mortgage loans held for sale is determined using quoted prices for a similar asset, adjusted for specific attributes of that loan, and are classified as Level 2. Derivative Financial Instruments United uses derivatives to manage interest rate risk. The valuation of these instruments is typically determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. United also uses best effort and mandatory delivery forward loan sale commitments to hedge risk in its mortgage lending business. United incorporates CVAs as necessary to appropriately reflect the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, United has considered the effect of netting and any applicable credit enhancements, such as collateral postings, thresholds and guarantees. Management has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy. However, the CVAs associated with these derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. Generally, management’s assessment of the significance of the CVAs has indicated that they are not a significant input to the overall valuation of the derivatives. In cases where management’s assessment indicates that the CVA is a significant input, the related derivative is disclosed as a Level 3 value. Other derivatives classified as Level 3 include structured derivatives for which broker quotes, used as a key valuation input, were not observable. Risk participation agreements are classified as Level 3 instruments due to the incorporation of significant Level 3 inputs used to evaluate the probability of funding and the likelihood of customer default. Interest rate lock commitments, which relate to mortgage loan commitments, are categorized as Level 3 instruments as the fair value of these instruments is based on unobservable inputs for commitments that United does not expect to fund. Servicing Rights for Residential and SBA/USDA Loans United recognizes servicing rights upon the sale of residential and SBA/USDA loans sold with servicing retained. Management has elected to carry these assets at fair value. Given the nature of these assets, the key valuation inputs are unobservable and management classifies these assets as Level 3. Assets and Liabilities Measured at Fair Value on a Recurring Basis The table below presents United’s assets and liabilities measured at fair value on a recurring basis as of the dates indicated, aggregated by the level in the fair value hierarchy within which those measurements fall (in thousands) . June 30, 2021 Level 1 Level 2 Level 3 Total Assets: AFS debt securities: U.S. Treasuries $ 142,080 $ — $ — $ 142,080 U.S. Government agencies & GSEs — 152,624 — 152,624 State and political subdivisions — 289,346 — 289,346 Residential MBS — 1,977,045 — 1,977,045 Commercial MBS — 708,208 — 708,208 Corporate bonds — 150,104 1,707 151,811 Asset-backed securities — 654,667 — 654,667 Equity securities with readily available fair values 1,289 1,268 — 2,557 Mortgage loans held for sale — 98,194 — 98,194 Deferred compensation plan assets 11,008 — — 11,008 Servicing rights for SBA/USDA loans — — 6,115 6,115 Residential mortgage servicing rights — — 21,568 21,568 Derivative financial instruments — 51,600 6,889 58,489 Total assets $ 154,377 $ 4,083,056 $ 36,279 $ 4,273,712 Liabilities: Deferred compensation plan liability $ 11,031 $ — $ — $ 11,031 Derivative financial instruments — 23,145 3,944 27,089 Total liabilities $ 11,031 $ 23,145 $ 3,944 $ 38,120 December 31, 2020 Level 1 Level 2 Level 3 Total Assets: AFS debt securities: U.S. Treasuries $ 128,072 $ — $ — $ 128,072 U.S. Government agencies & GSEs — 152,972 — 152,972 State and political subdivisions — 274,472 — 274,472 Residential MBS — 1,485,585 — 1,485,585 Commercial MBS — 549,131 — 549,131 Corporate bonds — 70,017 1,750 71,767 Asset-backed securities — 562,722 — 562,722 Equity securities with readily available fair values 774 913 — 1,687 Mortgage loans held for sale — 105,433 — 105,433 Deferred compensation plan assets 9,584 — — 9,584 Servicing rights for SBA/USDA loans — — 6,462 6,462 Residential mortgage servicing rights — — 16,216 16,216 Derivative financial instruments — 75,887 10,779 86,666 Total assets $ 138,430 $ 3,277,132 $ 35,207 $ 3,450,769 Liabilities: Deferred compensation plan liability $ 9,590 $ — $ — $ 9,590 Derivative financial instruments — 26,595 2,408 29,003 Total liabilities $ 9,590 $ 26,595 $ 2,408 $ 38,593 The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values (in thousands) . 2021 2020 Derivative Assets Derivative Liabilities SBA/USDA loan servicing rights Residential mortgage servicing rights Corporate Bonds Derivative Derivative SBA/USDA loan servicing rights Residential mortgage servicing rights Corporate Bonds Three Months Ended June 30, Balance at beginning of period $ 8,308 $ 4,606 $ 6,226 $ 20,728 $ 1,750 $ 7,361 $ 2,717 $ 6,290 $ 11,059 $ — Additions — 97 610 3,792 — 7 — 303 3,217 1,000 Transfers into Level 3 — — — — — 583 — — — — Sales and settlements — — (453) (1,426) — — — (34) (682) — Amounts included in OCI — — — — (43) — — — — — Amounts included in earnings - fair value adjustments (1,419) (759) (268) (1,526) — 4,156 (148) (525) (1,102) — Balance at end of period $ 6,889 $ 3,944 $ 6,115 $ 21,568 $ 1,707 $ 12,107 $ 2,569 $ 6,034 $ 12,492 $ 1,000 Six Months Ended June 30, Balance at beginning of period $ 10,779 $ 2,408 $ 6,462 $ 16,216 $ 1,750 $ 7,238 $ 8,559 $ 6,794 $ 13,565 $ 998 Additions 175 97 839 6,993 — 7 — 398 5,332 1,000 Transfers into Level 3 — — — — — 583 — — — — Sales and settlements — — (644) (2,555) — — — (341) (1,175) (1,000) Amounts included in OCI — — — (43) — — — — 2 Amounts included in earnings - fair value adjustments (4,065) 1,439 (542) 914 — 4,279 (5,990) (817) (5,230) — Balance at end of period $ 6,889 $ 3,944 $ 6,115 $ 21,568 $ 1,707 $ 12,107 $ 2,569 $ 6,034 $ 12,492 $ 1,000 The following table presents quantitative information about significant Level 3 inputs for fair value on a recurring basis as of the dates indicated. Level 3 Assets and Liabilities Valuation Technique Significant Unobservable Inputs June 30, 2021 December 31, 2020 Range Weighted Average Range Weighted Average SBA/USDA loan servicing rights Discounted cash flow Discount rate 0.0% - 31.1% 9.3 % 1.6% - 44.1% 8.9 % Prepayment rate 3.0 - 34.3 17.9 2.7 - 33.6 17.8 Residential mortgage servicing rights Discounted cash flow Discount rate 10.0 - 11.0 10.0 10.0 - 11.0 10.0 Prepayment rate 10.3 - 18.0 13.7 8.7 - 19.5 17.7 Corporate bonds Indicative bid provided by a broker Multiple factors, including but not limited to, current operations, financial condition, cash flows, and similar financing transactions executed in the market N/A N/A Discounted cash flow Discount rate 6.7 - 6.9 6.8 Derivative assets - mortgage Internal model Pull through rate 49.8 - 100 85.2 65.6 - 100 83.9 Derivative assets and liabilities - other Dealer priced Dealer priced N/A N/A N/A N/A Fair Value Option United records mortgage loans held for sale at fair value under the fair value option. Interest income on these loans is calculated based on the note rate of the loan and is recorded in interest revenue. The following tables present the fair value and outstanding principal balance of these loans, as well as the gain or loss recognized resulting from the change in fair value for the periods indicated (in thousands) . Mortgage Loans Held for Sale June 30, 2021 December 31, 2020 Outstanding principal balance $ 94,229 $ 99,746 Fair value 98,194 105,433 Gain (Loss) Recognized on Mortgage Loans Held for Sale Location Three Months Ended Six Months Ended 2020 2019 2021 2020 Mortgage loan gains and other related fees $ 521 $ 1,546 $ (1,721) $ 3,271 Changes in fair value were mostly offset by hedging activities. An immaterial portion of these amounts was attributable to changes in instrument-specific credit risk. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis United may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis. These adjustments to fair value usually result from the application of the lower of the amortized cost or fair value accounting or write-downs of individual assets due to impairment. The following table presents the fair value hierarchy and carrying value of assets that were still held as of June 30, 2021 and December 31, 2020, for which a nonrecurring fair value adjustment was recorded during the year-to-date periods presented (in thousands) . Level 1 Level 2 Level 3 Total June 30, 2021 Loans $ — $ — $ 3,341 $ 3,341 December 31, 2020 Loans $ — $ — $ 29,404 $ 29,404 Loans that are reported above as being measured at fair value on a nonrecurring basis are generally impaired loans that have either been partially charged off or have specific reserves assigned to them. Nonaccrual loans that are collateral dependent are generally written down to net realizable value, which reflects fair value less the estimated costs to sell. Specific reserves that are established based on appraised value of collateral are considered nonrecurring fair value adjustments as well. When the fair value of the collateral is based on an observable market price or a current appraised value, United records the impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, United records the impaired loan as nonrecurring Level 3. Assets and Liabilities Not Measured at Fair Value For financial instruments that have quoted market prices, those quotes are used to determine fair value. Financial instruments that have no defined maturity, have a remaining maturity of 180 days or less, or reprice frequently to a market rate, are assumed to have a fair value that approximates reported book value, after taking into consideration any applicable credit risk. If no market quotes are available, financial instruments are valued by discounting the expected cash flows using an estimated current market interest rate for the financial instrument. For off-balance sheet derivative instruments, fair value is estimated as the amount that United would receive or pay to terminate the contracts at the reporting date, taking into account the current unrealized gains or losses on open contracts. Cash and cash equivalents and repurchase agreements have short maturities and therefore the carrying value approximates fair value. Due to the short-term settlement of accrued interest receivable and payable, the carrying amount closely approximates fair value. Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect the premium or discount on any particular financial instrument that could result from the sale of United’s entire holdings. All estimates are inherently subjective in nature. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets and liabilities that are not considered financial instruments include the mortgage banking operation, brokerage network, deferred income taxes, premises and equipment and goodwill. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates. Off-balance sheet instruments (commitments to extend credit and standby letters of credit) for which draws can be reasonably predicted are generally short-term in maturity and are priced at variable rates. Therefore, the estimated fair value associated with these instruments is immaterial. The carrying amount and fair values as of the dates indicated for other financial instruments that are not measured at fair value on a recurring basis are as follows (in thousands) . Fair Value Level Carrying Amount Level 1 Level 2 Level 3 Total June 30, 2021 Assets: HTM debt securities $ 852,404 $ — $ 861,488 $ — $ 861,488 Loans and leases, net 11,279,130 — — 11,263,533 11,263,533 Liabilities: Deposits 16,327,767 — 16,327,024 — 16,327,024 Long-term debt 261,919 — — 280,049 280,049 December 31, 2020 Assets: HTM debt securities $ 420,361 $ — $ 437,193 $ — $ 437,193 Loans and leases, net 11,233,805 — — 11,209,717 11,209,717 Liabilities: Deposits 15,232,358 — 15,232,274 — 15,232,274 Long-term debt 326,956 — — 336,763 336,763

Common Stock

Common Stock	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Common Stock	Common Stock In the second quarter of 2021, United amended its articles of incorporation to increase the number of authorized shares of common stock from 150 million to 200 million. In November of 2020, United’s Board of Directors re-authorized a common stock repurchase program to permit the repurchase of up to $50 million of its common stock. The program is scheduled to expire on the earlier of the repurchase of common stock having an aggregate purchase price of $50 million or December 31, 2021. During the three and six months ended June 30, 2021, 150,000 shares were repurchased. No shares were repurchased during the three months ended June 30, 2020. During the six months ended June 30, 2020, 826,482 shares were repurchased. As of June 30, 2021, United had remaining authorization to repurchase up to $44.9 million of outstanding common stock under the program.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation United has an equity compensation plan that allows for grants of various share-based compensation. The general terms of the plan include a vesting period (usually four years) with an exercisable period not to exceed ten years. Certain restricted stock unit awards provide for accelerated vesting if there is a change in control (as defined in the plan document). As of June 30, 2021, 884,343 additional awards could be granted under the plan. The table below presents restricted stock unit activity for the six months ended June 30, 2021. Restricted Stock Unit Awards Shares Weighted- Aggregate Outstanding at December 31, 2020 893,431 $ 23.75 Granted 71,378 30.94 Vested (119,680) 29.19 $ 4,008 Cancelled (47,231) 24.96 Outstanding at June 30, 2021 797,898 23.51 25,541 Compensation expense for restricted stock units and performance stock units without market conditions is based on the market value of United’s common stock on the date of grant. Compensation expense for performance stock units with market conditions is based on the grant date per share fair market value, which was estimated using the Monte Carlo Simulation valuation model. United recognizes the impact of forfeitures as they occur. The value of restricted stock unit and performance stock unit awards is amortized into expense over the service period. For the six months ended June 30, 2021 and 2020, expense of $2.91 million and $4.04 million, respectively, was recognized related to restricted stock unit and performance stock unit awards granted to United employees, which was included in salaries and employee benefits expense. In addition, for the six months ended June 30, 2021 and 2020, $235,000 and $217,000, respectively, was recognized in other expense for restricted stock unit awards granted to members of United’s Board of Directors.

Reclassifications Out of AOCI

Reclassifications Out of AOCI	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Reclassifications Out of AOCI	Reclassifications Out of AOCI The following table presents the details regarding amounts reclassified out of AOCI for the periods indicated (in thousands) . Amounts shown in parentheses reduce earnings. Details about AOCI Components Three Months Ended Six Months Ended Affected Line Item in the Statement Where Net Income is Presented 2021 2020 2021 2020 Realized gains on AFS securities: $ 41 $ — $ 41 $ — Securities gains, net (14) — (14) — Income tax expense $ 27 $ — $ 27 $ — Net of tax Amortization of losses included in net income on AFS securities transferred to HTM: $ — $ (96) $ — $ (179) Investment securities interest revenue — 23 — 43 Income tax benefit $ — $ (73) $ — $ (136) Net of tax Reclassifications related to derivative financial instruments accounted for as cash flow hedges: Interest rate contracts $ (147) $ (67) $ (291) $ (67) Long-term debt interest expense 37 17 74 17 Income tax benefit $ (110) $ (50) $ (217) $ (50) Net of tax Reclassifications related to defined benefit pension plan activity: Prior service cost $ (117) $ (132) $ (234) $ (265) Salaries and employee benefits expense Actuarial losses (144) (82) (288) (163) Other expense (261) (214) (522) (428) Total before tax 67 55 134 109 Income tax benefit $ (194) $ (159) $ (388) $ (319) Net of tax Total reclassifications for the period $ (277) $ (282) $ (578) $ (505) Net of tax

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share for the periods indicated (in thousands, except per share data) . Three Months Ended Six Months Ended 2021 2020 2021 2020 Net income $ 70,260 $ 25,096 $ 143,966 $ 56,980 Dividends on preferred stock (1,719) — (3,438) — Undistributed earnings allocated to participating securities (432) (183) (894) (426) Net income available to common shareholders $ 68,109 $ 24,913 $ 139,634 $ 56,554 Weighted average shares outstanding: Basic 87,289 78,920 87,306 79,130 Effect of dilutive securities: Restricted stock units 132 4 137 56 Diluted 87,421 78,924 87,443 79,186 Net income per common share: Basic $ 0.78 $ 0.32 $ 1.60 $ 0.71 Diluted $ 0.78 $ 0.32 $ 1.60 $ 0.71

Regulatory Matters

Regulatory Matters	6 Months Ended
	Jun. 30, 2021
Regulatory Capital Requirements Under Banking Regulations [Abstract]
Regulatory Matters	Regulatory Matters As of June 30, 2021, United and the Bank were categorized as well-capitalized under the regulatory framework for prompt corrective action in effect at such time. To be categorized as well-capitalized at June 30, 2021, United and the Bank must have exceeded the well-capitalized guideline ratios in effect at such time, as set forth in the table below, and have met certain other requirements. Management believes that United and the Bank exceeded all well-capitalized requirements at June 30, 2021, and there have been no conditions or events since quarter-end that would change the status of well-capitalized. Regulatory capital ratios at June 30, 2021 and December 31, 2020, along with the minimum amounts required for capital adequacy purposes and to be well-capitalized under prompt corrective action provisions in effect at such times are presented below for United and the Bank (dollars in thousands) : United Community Banks, Inc. United Community Bank Minimum (1) Well- June 30, December 31, June 30, December 31, Risk-based ratios: CET1 capital 4.5 % 6.5 % 12.59 % 12.31 % 13.21 % 13.31 % Tier 1 capital 6.0 8.0 13.34 13.10 13.21 13.31 Total capital 8.0 10.0 15.09 15.15 14.03 14.28 Leverage ratio 4.0 5.0 9.26 9.28 9.16 9.42 CET1 capital $ 1,604,725 $ 1,506,750 $ 1,679,004 $ 1,625,292 Tier 1 capital 1,701,147 1,603,172 1,679,004 1,625,292 Total capital 1,924,680 1,854,368 1,782,537 1,743,045 Risk-weighted assets 12,750,755 12,240,440 12,705,960 12,207,940 Average total assets for the leverage ratio 18,369,878 17,276,853 18,334,952 17,246,878 (1) As of June 30, 2021 and December 31, 2020 the additional capital conservation buffer in effect was 2.50%

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies United is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheet. The contract amounts of these instruments reflect the extent of involvement United has in particular classes of financial instruments. The exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and letters of credit written is represented by the contractual amount of these instruments. United uses the same credit policies in making commitments and conditional obligations as it uses for underwriting on-balance sheet instruments. In most cases, collateral or other security is required to support financial instruments with credit risk. The following table summarizes the contractual amount of off-balance sheet instruments as of the dates indicated (in thousands) . June 30, 2021 December 31, 2020 Financial instruments whose contract amounts represent credit risk: Commitments to extend credit $ 3,259,470 $ 3,052,657 Letters of credit 27,674 31,748 United holds minor investments in certain limited partnerships for Community Reinvestment Act purposes. As of June 30, 2021, United had committed to fund an additional $8.43 million related to future capital calls that are not reflected in the consolidated balance sheet. United, in the normal course of business, is subject to various pending and threatened lawsuits in which claims for monetary damages are asserted. Although it is not possible to predict the outcome of these lawsuits, or the range of any possible loss, management, after

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Acquisitions	Acquisitions Subsequent to quarter-end, on July 6, 2021, United completed the acquisition of FinTrust Capital Partners, LLC, and its operating subsidiaries, FinTrust Capital Advisors, LLC, FinTrust Capital Benefit Group, LLC and FinTrust Brokerage Services, LLC, collectively referred to as “FinTrust”. FinTrust is an investment advisory firm headquartered in Greenville, South Carolina, with additional locations in Anderson, South Carolina, and Athens and Macon, Georgia. The firm provides wealth and investment management services to individuals and institutions within its markets. As of June 30, 2021, FinTrust had assets under management of $2.09 billion across its advisory, retirement planning and brokerage businesses. Under the terms of the merger agreement, FinTrust shareholders received $22.0 million in total consideration, of which $4.40 million was United common stock, $9.90 million was cash and $7.70 million was contingent consideration. United issued 132,299 shares of common stock to FinTrust shareholders in the acquisition. The acquisition will be accounted for as a business combination. Due to the timing of the acquisition, United is currently in the process of completing the purchase accounting and has not made all of the remaining required disclosures, such as the fair value of assets acquired and supplemental pro forma information, which will be disclosed in subsequent filings. On May 27, 2021, United announced an agreement to acquire Aquesta Financial Holdings, Inc. and its wholly-owned subsidiary, Aquesta Bank, collectively referred to as “Aquesta”. Aquesta is headquartered in Cornelius, North Carolina and operates a network of nine branches primarily located in the Charlotte metropolitan area in addition to locations in Wilmington and Raleigh, North Carolina, as well as Greenville and Charleston, South Carolina. As of June 30, 2021, Aquesta reported total assets of $736 million, total loans of $524 million and total deposits of $641 million. The merger, which is subject to regulatory approval, the approval of Aquesta shareholders, and other customary conditions, is expected to close in the fourth quarter of 2021. Subsequent to quarter-end, on July 14, 2021, United announced an agreement to acquire Reliant Bancorp, Inc. and its wholly-owned subsidiary, Reliant Bank, collectively referred to as “Reliant”. Reliant is headquartered in Brentwood, Tennessee, a suburb of Nashville, Tennessee and operates a 25 branch network in Tennessee, located primarily in the Nashville area, as well as branches in Clarksville and Chattanooga. It also has a manufactured housing finance group based in Knoxville. As of June 30, 2021, Reliant reported total assets of $3.10 billion, total loans of $2.32 billion, and total deposits of $2.63 billion. The merger, which is subject to regulatory approval, the approval of Reliant shareholders, and other customary conditions, is expected to close in the first quarter of 2022.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsEffective July 1, 2021, the Bank moved its headquarters from Blairsville, Georgia to Greenville, South Carolina and became a South Carolina state-chartered bank subject to examination and reporting requirements of the South Carolina Board of Financial Institutions. Prior to that date, the Bank was a Georgia state-chartered bank subject to examination and reporting requirements of the Georgia Department of Banking and Finance. Also effective July 1, 2021, the Holding Company elected to become a financial holding company, which allows for engagement in a broader range of financial activities.During the third quarter of 2021, through August 5, 2021, United repurchased 309,599 shares of common stock for $9.00 million in accordance with its common stock repurchase program.

Accounting Policies (Policies)

Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Basis of Accounting	United’s accounting and financial reporting policies conform to GAAP and reporting guidelines of banking regulatory authorities. The accompanying interim consolidated financial statements have not been audited. All material intercompany balances and transactions have been eliminated. A more detailed description of United’s accounting policies is included in its 2020 10-K.
Recently Adopted Standards and Recently Issued Standards	Recently Adopted Standards In October 2020, the FASB issued ASU No. 2020-10, Codification Improvements . In addition to consolidating existing disclosure guidance into a single codification section to reduce the likelihood of a required disclosure being missed, this update clarifies the application of select guidance in cases where the original guidance may have been unclear. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In October 2020, the FASB issued ASU No. 2020-08, Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs . This update clarifies that an entity should reevaluate whether a callable debt security meets the criteria to adjust the amortization period of any related premium at each reporting period. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In January 2020, the FASB issued ASU No. 2020-01, Investments—Equity Securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Emerging Issues Task Force) . This update clarifies whether an entity should consider observable transactions that require it to either apply or discontinue the equity method of accounting for the purposes of applying the measurement alternative and how to account for certain forward contracts and purchased options to purchase securities. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes . This update removes several exceptions related to intraperiod tax allocation when there is a loss from continuing operations and income from other items, foreign subsidiaries becoming equity method investments and vice versa, and calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The guidance also amends requirements related to franchise tax that is partially based on income, a step up in the tax basis of goodwill, allocation of consolidated tax expense to a legal entity not subject to tax in its separate financial statements, the effects of enacted changes in tax laws and other minor codification improvements regarding employee stock ownership plans and investments in qualified affordable housing projects. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-14, Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans . The update removes disclosures that are no longer considered cost beneficial, clarifies specific requirements of disclosures, and adds disclosure requirements identified as relevant. United adopted this update as of January 1, 2021, with no material impact on the consolidated financial statements. Recently Issued Standards In July 2021, the FASB issued ASU No. 2021-05, Leases (Topic 842): Lessors - Certain Leases with Variable Lease Payments . The update amends the lease classification requirements for lessors to align them with practice under the former lease accounting standard. Specifically, lessors should classify a lease with variable lease payments that do not depend on a reference index or rate as an operating lease if certain criteria are met. Adoption of this update, which is effective for United as of January 1, 2022, is not expected to have a material impact on the consolidated financial statements.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost basis, unrealized gains and losses and fair value of HTM debt securities	The amortized cost basis, unrealized gains and losses and fair value of HTM debt securities as of the dates indicated are as follows (in thousands) . Amortized Gross Unrealized Gross Unrealized Fair As of June 30, 2021 U.S. Treasuries $ 19,788 $ 267 $ — $ 20,055 U.S. Government agencies & GSEs 59,709 334 351 59,692 State and political subdivisions 248,768 5,742 1,749 252,761 Residential MBS, Agency & GSEs 223,571 3,706 1,079 226,198 Commercial MBS, Agency & GSEs 285,568 4,126 1,950 287,744 Supranational entities 15,000 38 — 15,038 Total $ 852,404 $ 14,213 $ 5,129 $ 861,488 As of December 31, 2020 U.S. Government agencies & GSEs $ 10,575 $ 26 $ 11 $ 10,590 State and political subdivisions 197,723 7,658 242 205,139 Residential MBS, Agency & GSEs 113,400 4,774 1 118,173 Commercial MBS, Agency & GSEs 98,663 4,874 246 103,291 Total $ 420,361 $ 17,332 $ 500 $ 437,193
Schedule of amortized cost basis, unrealized gains and losses, and fair value of AFS debt securities	The amortized cost basis, unrealized gains and losses, and fair value of AFS debt securities as of the dates indicated are presented below (in thousands) . Amortized Gross Unrealized Gross Unrealized Fair As of June 30, 2021 U.S. Treasuries $ 138,884 $ 3,196 $ — $ 142,080 U.S. Government agencies & GSEs 153,601 871 1,848 152,624 State and political subdivisions 273,433 17,154 1,241 289,346 Residential MBS, Agency & GSEs 1,831,697 21,089 11,809 1,840,977 Residential MBS, Non-agency 132,100 3,972 4 136,068 Commercial MBS, Agency & GSEs 695,417 4,626 8,676 691,367 Commercial MBS, Non-agency 15,219 1,622 — 16,841 Corporate bonds 150,736 1,329 254 151,811 Asset-backed securities 652,093 2,914 340 654,667 Total $ 4,043,180 $ 56,773 $ 24,172 $ 4,075,781 As of December 31, 2020 U.S. Treasuries $ 123,677 $ 4,395 $ — $ 128,072 U.S. Government agencies & GSEs 152,596 701 325 152,972 State and political subdivisions 253,630 20,891 49 274,472 Residential MBS, Agency & GSEs 1,275,551 29,107 766 1,303,892 Residential MBS, Non-agency 174,322 7,499 128 181,693 Commercial MBS, Agency & GSEs 524,852 8,013 597 532,268 Commercial MBS, Non-agency 15,350 1,513 — 16,863 Corporate bonds 70,057 1,711 1 71,767 Asset-backed securities 562,076 1,278 632 562,722 Total $ 3,152,111 $ 75,108 $ 2,498 $ 3,224,721
Schedule of HTM debt securities in an unrealized loss position	The following table summarizes HTM debt securities in an unrealized loss position as of the dates indicated ( in thousands) . Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized As of June 30, 2021 U.S. Government agencies & GSEs $ 10,143 $ 351 $ — $ — $ 10,143 $ 351 State and political subdivisions 85,484 1,749 — — 85,484 1,749 Residential MBS, Agency & GSEs 89,888 1,078 120 1 90,008 1,079 Commercial MBS, Agency & GSEs 125,226 1,950 — — 125,226 1,950 Total unrealized loss position $ 310,741 $ 5,128 $ 120 $ 1 $ 310,861 $ 5,129 As of December 31, 2020 U.S. Government agencies & GSEs $ 4,677 $ 11 $ — $ — $ 4,677 $ 11 State and political subdivisions 14,870 242 — — 14,870 242 Residential MBS, Agency & GSEs 999 1 — — 999 1 Commercial MBS, Agency & GSEs 24,956 236 1,352 10 26,308 246 Total unrealized loss position $ 45,502 $ 490 $ 1,352 $ 10 $ 46,854 $ 500
Schedule of AFS debt securities in an unrealized loss position	The following table summarizes AFS debt securities in an unrealized loss position as of the dates indicated (in thousands) . Less than 12 Months 12 Months or More Total Fair Value Unrealized Fair Value Unrealized Fair Value Unrealized As of June 30, 2021 U.S. Government agencies & GSEs $ 78,309 $ 1,848 $ — $ — $ 78,309 $ 1,848 State and political subdivisions 52,132 1,241 — — 52,132 1,241 Residential MBS, Agency & GSEs 897,499 11,799 847 10 898,346 11,809 Residential MBS, Non-agency — — 2,455 4 2,455 4 Commercial MBS, Agency & GSEs 457,568 8,633 1,025 43 458,593 8,676 Corporate bonds 56,854 254 — — 56,854 254 Asset-backed securities 116,960 305 24,710 35 141,670 340 Total unrealized loss position $ 1,659,322 $ 24,080 $ 29,037 $ 92 $ 1,688,359 $ 24,172 As of December 31, 2020 U.S. Government agencies & GSEs $ 27,952 $ 324 $ 607 $ 1 $ 28,559 $ 325 State and political subdivisions 9,402 49 — — 9,402 49 Residential MBS, Agency & GSEs 232,199 766 — — 232,199 766 Residential MBS, Non-agency 2,331 128 — — 2,331 128 Commercial MBS, Agency & GSEs 89,918 597 — — 89,918 597 Corporate bonds 1,410 1 — — 1,410 1 Asset-backed securities 87,305 28 53,587 604 140,892 632 Total unrealized loss position $ 450,517 $ 1,893 $ 54,194 $ 605 $ 504,711 $ 2,498
Schedule of accrued interest receivable	The following table presents accrued interest receivable for the periods indicated on HTM and AFS debt securities (in thousands) , which was excluded from the estimate of credit losses. Accrued Interest Receivable June 30, 2021 December 31, 2020 HTM $ 2,886 $ 1,784 AFS 9,809 9,114
Schedule of amortized cost and fair value of AFS and HTM securities by contractual maturity	The amortized cost and fair value of AFS and HTM debt securities at June 30, 2021, by contractual maturity, are presented in the following table (in thousands) . Expected maturities may differ from contractual maturities because issuers and borrowers may have the right to call or prepay obligations. AFS HTM Amortized Cost Fair Value Amortized Cost Fair Value Within 1 year: U.S. Treasuries $ 44,930 $ 45,341 $ — $ — U.S. Government agencies & GSEs 279 281 — — State and political subdivisions 20,000 20,000 1,700 1,718 Corporate bonds 11,534 11,556 — — 76,743 77,178 1,700 1,718 1 to 5 years: U.S. Treasuries 79,030 81,706 — — U.S. Government agencies & GSEs 13,835 13,894 — — State and political subdivisions 43,350 45,580 14,501 15,763 Corporate bonds 71,166 71,855 — — 207,381 213,035 14,501 15,763 5 to 10 years: U.S. Treasuries 14,924 15,033 19,788 20,055 U.S. Government agencies & GSEs 82,724 81,373 29,604 29,879 State and political subdivisions 86,931 91,420 31,126 32,227 Corporate bonds 67,256 67,515 — — Supranational entities — — 15,000 15,038 251,835 255,341 95,518 97,199 More than 10 years: U.S. Government agencies & GSEs 56,763 57,076 30,105 29,813 State and political subdivisions 123,152 132,346 201,441 203,053 Corporate bonds 780 885 — — 180,695 190,307 231,546 232,866 Debt securities not due at a single maturity date: Asset-backed securities 652,093 654,667 — — Residential MBS 1,963,797 1,977,045 223,571 226,198 Commercial MBS 710,636 708,208 285,568 287,744 Total $ 4,043,180 $ 4,075,781 $ 852,404 $ 861,488
Schedule of AFS securities sales activity	The following table summarizes AFS securities sales activity for the three and six months ended June 30, 2021 and 2020 (in thousands). Three Months Ended Six Months Ended 2021 2020 2021 2020 Proceeds from sales $ 78,111 $ — $ 78,111 $ 1,000 Gross realized gains $ 641 $ — $ 641 $ — Gross realized losses (600) — (600) — Securities gains, net $ 41 $ — $ 41 $ — Income tax expense attributable to sales $ 14 $ — $ 14 $ —

Loans and Leases and Allowanc_2

Loans and Leases and Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2021
Receivables [Abstract]
Schedule of major classifications of loan portfolio	Major classifications of the loan and lease portfolio (collectively referred to as the “loan portfolio” or “loans”) are summarized as of the dates indicated as follows (in thousands) . June 30, 2021 December 31, 2020 Owner occupied commercial real estate $ 2,149,371 $ 2,090,443 Income producing commercial real estate 2,550,243 2,540,750 Commercial & industrial (1) 2,234,646 2,498,560 Commercial construction 926,809 967,305 Equipment financing 968,805 863,830 Total commercial 8,829,874 8,960,888 Residential mortgage 1,472,608 1,284,920 HELOC 660,881 697,117 Residential construction 288,708 281,430 Consumer 138,675 146,460 Total loans 11,390,746 11,370,815 Less allowance for credit losses - loans (111,616) (137,010) Loans, net $ 11,279,130 $ 11,233,805 (1) Commercial and industrial loans as of June 30, 2021 and December 31, 2020 included $472 million and $646 million of PPP loans, respectively.
Schedule of loans held for investment sold	The following table presents loans held for investment that were sold in the periods indicated (in thousands). The gains and losses on these loan sales were included in noninterest income on the consolidated statements of income. Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Guaranteed portion of SBA/USDA loans $ 32,303 $ 14,035 $ 43,648 $ 18,069 Equipment financing receivables 18,908 1,704 19,967 23,921 Total $ 51,211 $ 15,739 $ 63,615 $ 41,990
Schedule of components of net investment in leases	At June 30, 2021 and December 31, 2020, equipment financing assets included leases of $37.8 million and $36.8 million, respectively. The components of the net investment in leases, which included both sales-type and direct financing, are presented below (in thousands) . June 30, 2021 December 31, 2020 Minimum future lease payments receivable $ 39,948 $ 38,934 Estimated residual value of leased equipment 3,269 3,263 Initial direct costs 668 672 Security deposits (672) (727) Purchase accounting premium 69 117 Unearned income (5,525) (5,457) Net investment in leases $ 37,757 $ 36,802
Schedule of minimum future lease payments expected to be received from equipment financing lease contracts	Minimum future lease payments expected to be received from equipment financing lease contracts as of June 30, 2021 were as follows (in thousands) : Year Remainder of 2021 $ 8,161 2022 13,830 2023 9,601 2024 5,161 2025 2,741 Thereafter 454 Total $ 39,948
Schedule of loans by aging category and accrual status	The following table presents the aging of the amortized cost basis in loans by aging category and accrual status as of the dates indicated (in thousands) . Past due status is based on contractual terms of the loan. The accrual of interest is generally discontinued when a loan becomes 90 days past due. Loans with active COVID-19 deferrals are not reported as past due to the extent they are in compliance with the deferral terms. Accruing Current Loans Loans Past Due 30 - 59 Days 60 - 89 Days > 90 Days Nonaccrual Loans Total Loans As of June 30, 2021 Owner occupied commercial real estate $ 2,141,403 $ 1,666 $ 174 $ — $ 6,128 $ 2,149,371 Income producing commercial real estate 2,536,332 592 219 — 13,100 2,550,243 Commercial & industrial 2,225,062 1,004 17 — 8,563 2,234,646 Commercial construction 925,376 199 5 — 1,229 926,809 Equipment financing 965,350 911 773 — 1,771 968,805 Total commercial 8,793,523 4,372 1,188 — 30,791 8,829,874 Residential mortgage 1,456,280 2,090 753 — 13,485 1,472,608 HELOC 658,224 1,015 209 — 1,433 660,881 Residential construction 288,032 369 — — 307 288,708 Consumer 138,287 247 34 — 107 138,675 Total loans $ 11,334,346 $ 8,093 $ 2,184 $ — $ 46,123 $ 11,390,746 As of December 31, 2020 Owner occupied commercial real estate $ 2,079,845 $ 2,013 $ 3 $ — $ 8,582 $ 2,090,443 Income producing commercial real estate 2,522,743 1,608 1,250 — 15,149 2,540,750 Commercial & industrial 2,480,483 1,176 267 — 16,634 2,498,560 Commercial construction 964,947 231 382 — 1,745 967,305 Equipment financing 856,985 2,431 1,009 — 3,405 863,830 Total commercial 8,905,003 7,459 2,911 — 45,515 8,960,888 Residential mortgage 1,265,019 5,549 1,494 — 12,858 1,284,920 HELOC 692,504 1,942 184 — 2,487 697,117 Residential construction 280,551 365 — — 514 281,430 Consumer 145,770 429 36 — 225 146,460 Total loans $ 11,288,847 $ 15,744 $ 4,625 $ — $ 61,599 $ 11,370,815
Schedule of nonaccrual loans by loan class	The following table presents nonaccrual loans by loan class for the periods indicated (in thousands) . Nonaccrual Loans June 30, 2021 December 31, 2020 With no allowance With an allowance Total With no allowance With an allowance Total Owner occupied commercial real estate $ 3,865 $ 2,263 $ 6,128 $ 6,614 $ 1,968 $ 8,582 Income producing commercial real estate 12,515 585 13,100 10,008 5,141 15,149 Commercial & industrial 7,143 1,420 8,563 2,004 14,630 16,634 Commercial construction 750 479 1,229 1,339 406 1,745 Equipment financing — 1,771 1,771 156 3,249 3,405 Total commercial 24,273 6,518 30,791 20,121 25,394 45,515 Residential mortgage 3,279 10,206 13,485 1,855 11,003 12,858 HELOC 117 1,316 1,433 1,329 1,158 2,487 Residential construction — 307 307 274 240 514 Consumer 1 106 107 181 44 225 Total $ 27,670 $ 18,453 $ 46,123 $ 23,760 $ 37,839 $ 61,599
Schedule of amortized cost of loans by risk category by vintage year	Based on the most recent analysis performed, the amortized cost of loans by risk category by vintage year as of the date indicated is as follows (in thousands) . Term Loans by Origination Year Revolvers Revolvers converted to term loans Total As of June 30, 2021 2021 2020 2019 2018 2017 Prior Pass Owner occupied commercial real estate $ 348,878 $ 692,889 $ 300,165 $ 173,797 $ 163,854 $ 309,564 $ 48,247 $ 10,973 $ 2,048,367 Income producing commercial real estate 349,737 772,304 338,003 272,816 214,741 273,090 33,109 12,088 2,265,888 Commercial & industrial 684,472 426,442 195,329 173,366 62,870 103,609 490,906 3,737 2,140,731 Commercial construction 175,452 300,989 167,938 124,411 28,142 12,596 8,054 2,030 819,612 Equipment financing 293,882 331,475 220,386 92,083 25,113 3,634 — — 966,573 Total commercial 1,852,421 2,524,099 1,221,821 836,473 494,720 702,493 580,316 28,828 8,241,171 Residential mortgage 448,846 416,688 136,631 91,877 88,511 268,040 14 4,883 1,455,490 HELOC — — — — — — 643,249 15,303 658,552 Residential construction 135,105 128,013 5,196 3,724 3,776 12,244 56 53 288,167 Consumer 33,625 37,841 16,905 8,636 2,515 2,633 36,126 132 138,413 2,469,997 3,106,641 1,380,553 940,710 589,522 985,410 1,259,761 49,199 10,781,793 Special Mention Owner occupied commercial real estate 10,313 5,379 15,503 3,839 4,036 8,610 247 286 48,213 Income producing commercial real estate 12,003 28,577 45,452 37,606 19,349 29,947 — — 172,934 Commercial & industrial 18,804 13,050 7,400 243 1,208 293 18,944 802 60,744 Commercial construction 679 18,763 12,943 17,248 38,377 63 — — 88,073 Equipment financing — — — — — — — — — Total commercial 41,799 65,769 81,298 58,936 62,970 38,913 19,191 1,088 369,964 Residential mortgage — — — — — — — — — HELOC — — — — — — — — — Residential construction — — — — — — — — — Consumer — — — — — — — — — 41,799 65,769 81,298 58,936 62,970 38,913 19,191 1,088 369,964 Substandard Owner occupied commercial real estate 10,561 1,636 11,185 8,450 6,871 12,267 1,300 521 52,791 Income producing commercial real estate 16,656 34,733 2,681 16,799 8,718 31,744 — 90 111,421 Commercial & industrial 1,238 1,638 4,755 7,122 1,882 7,081 8,989 466 33,171 Commercial construction 1,035 432 712 13,496 — 2,444 — 1,005 19,124 Equipment financing 248 786 656 472 54 16 — — 2,232 Total commercial 29,738 39,225 19,989 46,339 17,525 53,552 10,289 2,082 218,739 Residential mortgage 786 1,653 2,336 3,778 1,440 6,340 — 785 17,118 HELOC — — — — — — 68 2,261 2,329 Residential construction — 39 33 52 2 415 — — 541 Consumer — 6 42 30 41 120 — 23 262 30,524 40,923 22,400 50,199 19,008 60,427 10,357 5,151 238,989 Total $ 2,542,320 $ 3,213,333 $ 1,484,251 $ 1,049,845 $ 671,500 $ 1,084,750 $ 1,289,309 $ 55,438 $ 11,390,746 Term Loans by Origination Year Revolvers Revolvers converted to term loans Total As of December 31, 2020 2020 2019 2018 2017 2016 Prior Pass Owner occupied commercial real estate $ 707,501 $ 368,615 $ 231,316 $ 197,778 $ 201,362 $ 229,667 $ 56,273 $ 9,072 $ 2,001,584 Income producing commercial real estate 815,799 376,911 361,539 277,769 206,068 198,080 28,542 12,128 2,276,836 Commercial & industrial 1,092,767 287,857 263,439 115,790 92,968 58,359 515,593 3,777 2,430,550 Commercial construction 314,154 217,643 226,308 53,708 30,812 21,985 20,278 3,947 888,835 Equipment financing 413,653 270,664 125,869 39,982 9,404 445 — — 860,017 Total commercial 3,343,874 1,521,690 1,208,471 685,027 540,614 508,536 620,686 28,924 8,457,822 Residential mortgage 468,945 195,213 125,492 120,944 122,013 230,771 18 5,393 1,268,789 HELOC — — — — — — 675,878 17,581 693,459 Residential construction 225,727 30,646 4,026 4,544 3,172 12,546 — 64 280,725 Consumer 54,997 25,528 14,206 4,531 3,595 1,677 41,445 76 146,055 4,093,543 1,773,077 1,352,195 815,046 669,394 753,530 1,338,027 52,038 10,846,850 Special Mention Owner occupied commercial real estate 8,759 4,088 4,221 10,025 11,138 4,728 100 — 43,059 Income producing commercial real estate 35,471 42,831 39,954 13,238 24,164 11,337 — 1,681 168,676 Commercial & industrial 1,451 16,315 2,176 630 459 17 6,464 — 27,512 Commercial construction 21,366 272 816 23,292 11,775 477 — — 57,998 Equipment financing — — — — — — — — — Total commercial 67,047 63,506 47,167 47,185 47,536 16,559 6,564 1,681 297,245 Residential mortgage — — — — — — — — — HELOC — — — — — — — — — Residential construction — — — — — — — — — Consumer — — — — — — — — — 67,047 63,506 47,167 47,185 47,536 16,559 6,564 1,681 297,245 Substandard Owner occupied commercial real estate 6,586 10,473 7,596 3,717 6,753 8,473 1,528 674 45,800 Income producing commercial real estate 45,125 8,940 2,179 5,034 31,211 2,652 — 97 95,238 Commercial & industrial 1,545 5,536 6,193 1,684 1,292 1,485 22,170 593 40,498 Commercial construction 2,466 735 13,741 340 1,931 250 — 1,009 20,472 Equipment financing 631 1,392 1,371 306 96 17 — — 3,813 Total commercial 56,353 27,076 31,080 11,081 41,283 12,877 23,698 2,373 205,821 Residential mortgage 2,049 2,106 3,174 1,369 679 5,860 — 894 16,131 HELOC — — — — — — 265 3,393 3,658 Residential construction 106 37 54 4 124 380 — — 705 Consumer — 97 49 60 78 98 — 23 405 58,508 29,316 34,357 12,514 42,164 19,215 23,963 6,683 226,720 Total $ 4,219,098 $ 1,865,899 $ 1,433,719 $ 874,745 $ 759,094 $ 789,304 $ 1,368,554 $ 60,402 $ 11,370,815
Schedule of loans modified under the terms of a TDR, including TDR loans that defaulted	Loans modified under the terms of a TDR during the three and six months ended June 30, 2021 and 2020 are presented in the following table. In addition, the table presents loans modified under the terms of a TDR that defaulted (became 90 days or more delinquent or otherwise in default of modified terms) during the periods presented and were initially restructured within one year prior to default (dollars in thousands). New TDRs Post-Modification Amortized Cost by Type of Modification TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted Number of Contracts Rate Structure Other Total Number of Amortized Cost Three Months Ended June 30, 2021 Owner occupied commercial real estate 1 $ — $ 543 $ — $ 543 — $ — Income producing commercial real estate 1 — — 378 378 — — Commercial & industrial 2 — 365 — 365 — — Commercial construction — — — — — — — Equipment financing 8 — 326 — 326 5 138 Total commercial 12 — 1,234 378 1,612 5 138 Residential mortgage 5 — 322 — 322 — — HELOC — — — — — 1 49 Residential construction — — — — — — — Consumer — — — — — — — Total loans 17 $ — $ 1,556 $ 378 $ 1,934 6 $ 187 Six Months Ended June 30, 2021 Owner occupied commercial real estate 1 $ — $ 543 $ — $ 543 — $ — Income producing commercial real estate 3 — — 1,697 1,697 — — Commercial & industrial 4 — 365 103 468 1 11 Commercial construction 1 — 309 — 309 — — Equipment financing 36 — 2,462 — 2,462 8 200 Total commercial 45 — 3,679 1,800 5,479 9 211 Residential mortgage 6 — 391 — 391 3 413 HELOC — — — — — 1 49 Residential construction — — — — — — — Consumer — — — — — — — Total loans 51 $ — $ 4,070 $ 1,800 $ 5,870 13 $ 673 Three Months Ended June 30, 2020 Owner occupied commercial real estate 2 $ — $ — $ 546 $ 546 — $ — Income producing commercial real estate — — — — — 1 5,998 Commercial & industrial 1 — — 15 15 1 627 Commercial construction 1 — 255 — 255 — — Equipment financing 129 — 3,471 — 3,471 6 310 Total commercial 133 — 3,726 561 4,287 8 6,935 Residential mortgage 6 — 644 — 644 — — HELOC — — — — — — — Residential construction — — — — — — — Consumer 1 — — 7 7 — — Total loans 140 $ — $ 4,370 $ 568 $ 4,938 8 $ 6,935 Six Months Ended June 30, 2020 Owner occupied commercial real estate 3 $ — $ — $ 1,536 $ 1,536 — $ — Income producing commercial real estate 3 — 67 165 232 1 5,998 Commercial & industrial 1 — — 15 15 2 633 Commercial construction 1 — 255 — 255 — — Equipment financing 136 — 3,905 — 3,905 6 310 Total commercial 144 — 4,227 1,716 5,943 9 6,941 Residential mortgage 11 — 922 — 922 — — HELOC — — — — — — — Residential construction — — — — — — — Consumer 3 — — 18 18 1 3 Total loans 158 $ — $ 5,149 $ 1,734 $ 6,883 10 $ 6,944
Schedule of balance and activity in the ACL by portfolio segment	The following table presents the balance and activity in the ACL by portfolio segment for the periods indicated (in thousands) . Three Months Ended June 30, 2021 2020 Beginning Balance Charge-Offs Recoveries (Release) Provision Ending Balance Beginning Balance Charge-Offs Recoveries (Release) Provision Ending Balance Owner occupied commercial real estate $ 19,282 $ (1) $ 156 $ (2,145) $ 17,292 $ 11,000 $ — $ 466 $ 3,126 $ 14,592 Income producing commercial real estate 34,911 (52) 213 (4,105) 30,967 16,584 (4,589) 41 9,663 21,699 Commercial & industrial 21,750 (857) 797 (5,276) 16,414 10,831 (254) 291 (2,279) 8,589 Commercial construction 10,572 (46) 339 (1,685) 9,180 9,556 (239) 117 5,080 14,514 Equipment financing 17,200 (1,188) 887 1,201 18,100 14,738 (2,085) 420 7,232 20,305 Residential mortgage 14,580 — 194 (3,809) 10,965 11,063 (50) 56 1,757 12,826 HELOC 6,880 (34) 146 (635) 6,357 6,887 (98) 196 1,702 8,687 Residential construction 1,362 — 33 523 1,918 816 (32) 37 1,176 1,997 Consumer 329 (353) 222 225 423 430 (712) 286 456 460 ACL - loans 126,866 (2,531) 2,987 (15,706) 111,616 81,905 (8,059) 1,910 27,913 103,669 ACL - unfunded commitments 8,726 — — 2,118 10,844 6,470 — — 5,630 12,100 Total ACL $ 135,592 $ (2,531) $ 2,987 $ (13,588) $ 122,460 $ 88,375 $ (8,059) $ 1,910 $ 33,543 $ 115,769 Six Months Ended June 30, 2021 2020 Beginning Balance Charge-Offs Recoveries (Release) Provision Ending Balance Dec. 31, 2019 Adoption of CECL Beginning Charge- Recoveries (Release) Ending Owner occupied commercial real estate $ 20,673 $ (1) $ 396 $ (3,776) $ 17,292 $ 11,404 $ (1,616) $ 9,788 $ (6) $ 1,500 $ 3,310 $ 14,592 Income producing commercial real estate 41,737 (1,059) 229 (9,940) 30,967 12,306 (30) 12,276 (5,000) 182 14,241 21,699 Commercial & industrial 22,019 (3,751) 6,444 (8,298) 16,414 5,266 4,012 9,278 (7,815) 667 6,459 8,589 Commercial construction 10,952 (224) 495 (2,043) 9,180 9,668 (2,583) 7,085 (239) 258 7,410 14,514 Equipment financing 16,820 (3,246) 1,434 3,092 18,100 7,384 5,871 13,255 (3,948) 776 10,222 20,305 Residential mortgage 15,341 (215) 317 (4,478) 10,965 8,081 1,569 9,650 (334) 331 3,179 12,826 HELOC 8,417 (34) 219 (2,245) 6,357 4,575 1,919 6,494 (118) 299 2,012 8,687 Residential construction 764 (10) 103 1,061 1,918 2,504 (1,771) 733 (54) 71 1,247 1,997 Consumer 287 (824) 488 472 423 901 (491) 410 (1,350) 517 883 460 ACL - loans 137,010 (9,364) 10,125 (26,155) 111,616 62,089 6,880 68,969 (18,864) 4,601 48,963 103,669 ACL - unfunded commitments 10,558 — — 286 10,844 3,458 1,871 5,329 — — 6,771 12,100 Total ACL $ 147,568 $ (9,364) $ 10,125 $ (25,869) $ 122,460 $ 65,547 $ 8,751 $ 74,298 $ (18,864) $ 4,601 $ 55,734 $ 115,769

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of fair value of derivative financial instruments on consolidated balance sheet	The table below presents the fair value of derivative financial instruments as of the dates indicated as well as their classification on the consolidated balance sheets (in thousands) : June 30, 2021 December 31, 2020 Notional Amount Fair Value Notional Amount Fair Value Derivative Asset Derivative Liability Derivative Asset Derivative Liability Derivatives designated as hedging instruments: Cash flow hedge of subordinated debt $ 100,000 $ 5,682 $ — $ 100,000 $ 3,378 $ — Cash flow hedge of trust preferred securities 20,000 — — 20,000 — — Fair value hedge of brokered time deposits 10,000 — — 20,000 — — Total 130,000 5,682 — 140,000 3,378 — Derivatives not designated as hedging instruments: Customer derivative positions 1,276,926 45,358 6,758 1,329,271 72,508 17 Dealer offsets to customer derivative positions 1,276,926 451 16,094 1,329,271 1 24,614 Risk participations 61,673 3 22 48,843 28 12 Mortgage banking - loan commitment 160,535 5,191 — 253,243 10,751 — Mortgage banking - forward sales commitment 324,474 109 293 325,145 — 1,964 Bifurcated embedded derivatives 51,935 1,695 — 51,935 — 1,449 Dealer offsets to bifurcated embedded derivatives 51,935 — 3,922 51,935 — 947 Total 3,204,404 52,807 27,089 3,389,643 83,288 29,003 Total derivatives $ 3,334,404 $ 58,489 $ 27,089 $ 3,529,643 $ 86,666 $ 29,003 Total gross derivative instruments $ 58,489 $ 27,089 $ 86,666 $ 29,003 Less: Amounts subject to master netting agreements (480) (480) (114) (114) Less: Cash collateral received/pledged (5,827) (20,295) (3,200) (27,092) Net amount $ 52,182 $ 6,314 $ 83,352 $ 1,797
Schedule of effect of derivatives in hedging relationships on the consolidated statement of income	The table below presents the effect of derivatives in hedging relationships, all of which are interest rate contracts, on the consolidated statement of income for the periods indicated (in thousands) . Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Total interest expense presented in the consolidated statements of income $ (7,433) $ (14,301) $ (16,911) $ (32,242) Effect of hedging relationships on interest expense: Net income recognized on fair value hedges 46 213 124 218 Net expense recognized on cash flow hedges (1) (147) (67) (291) (67) (1) Includes $118,000 and $234,000 of premium amortization expense excluded from the assessment of hedge effectiveness for the three and six months ended June 30, 2021, respectively. Includes $92,000 of premium amortization expense excluded from the assessment of hedge effectiveness for the three and six months ended June 30, 2020.
Schedule of carrying amount and cumulative fair value hedging adjustments on hedged liability	The table below presents the carrying amount of hedged fixed-rate brokered time deposits and cumulative fair value hedging adjustments included in the carrying amount of the hedged liability for the periods presented (in thousands) . June 30, 2021 December 31, 2020 Balance Sheet Location Carrying amount of Assets (Liabilities) Hedge Accounting Basis Adjustment Carrying amount of Assets (Liabilities) Hedge Accounting Basis Adjustment Deposits $ (10,103) $ (112) $ (20,216) $ (235)
Schedule of gains and losses recognized in income on derivatives not designated as hedging instruments	The table below presents the gains and losses recognized in income on derivatives not designated as hedging instruments for the periods indicated (in thousands) . Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives Three Months Ended Six Months Ended 2021 2020 2021 2020 Customer derivatives and dealer offsets Other noninterest income $ 162 $ 1,168 $ 2,059 $ 2,592 Bifurcated embedded derivatives and dealer offsets Other noninterest income (42) (28) 417 (223) Mortgage banking derivatives Mortgage loan revenue (3,494) 929 342 100 Risk participations Other noninterest income 98 14 (107) (3) $ (3,276) $ 2,083 $ 2,711 $ 2,466

Assets and Liabilities Measur_2

Assets and Liabilities Measured at Fair Value (Tables)	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value on a recurring basis	The table below presents United’s assets and liabilities measured at fair value on a recurring basis as of the dates indicated, aggregated by the level in the fair value hierarchy within which those measurements fall (in thousands) . June 30, 2021 Level 1 Level 2 Level 3 Total Assets: AFS debt securities: U.S. Treasuries $ 142,080 $ — $ — $ 142,080 U.S. Government agencies & GSEs — 152,624 — 152,624 State and political subdivisions — 289,346 — 289,346 Residential MBS — 1,977,045 — 1,977,045 Commercial MBS — 708,208 — 708,208 Corporate bonds — 150,104 1,707 151,811 Asset-backed securities — 654,667 — 654,667 Equity securities with readily available fair values 1,289 1,268 — 2,557 Mortgage loans held for sale — 98,194 — 98,194 Deferred compensation plan assets 11,008 — — 11,008 Servicing rights for SBA/USDA loans — — 6,115 6,115 Residential mortgage servicing rights — — 21,568 21,568 Derivative financial instruments — 51,600 6,889 58,489 Total assets $ 154,377 $ 4,083,056 $ 36,279 $ 4,273,712 Liabilities: Deferred compensation plan liability $ 11,031 $ — $ — $ 11,031 Derivative financial instruments — 23,145 3,944 27,089 Total liabilities $ 11,031 $ 23,145 $ 3,944 $ 38,120 December 31, 2020 Level 1 Level 2 Level 3 Total Assets: AFS debt securities: U.S. Treasuries $ 128,072 $ — $ — $ 128,072 U.S. Government agencies & GSEs — 152,972 — 152,972 State and political subdivisions — 274,472 — 274,472 Residential MBS — 1,485,585 — 1,485,585 Commercial MBS — 549,131 — 549,131 Corporate bonds — 70,017 1,750 71,767 Asset-backed securities — 562,722 — 562,722 Equity securities with readily available fair values 774 913 — 1,687 Mortgage loans held for sale — 105,433 — 105,433 Deferred compensation plan assets 9,584 — — 9,584 Servicing rights for SBA/USDA loans — — 6,462 6,462 Residential mortgage servicing rights — — 16,216 16,216 Derivative financial instruments — 75,887 10,779 86,666 Total assets $ 138,430 $ 3,277,132 $ 35,207 $ 3,450,769 Liabilities: Deferred compensation plan liability $ 9,590 $ — $ — $ 9,590 Derivative financial instruments — 26,595 2,408 29,003 Total liabilities $ 9,590 $ 26,595 $ 2,408 $ 38,593
Schedule of reconciliation of assets measured at fair value on a recurring basis using significant unobservable inputs	The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values (in thousands) . 2021 2020 Derivative Assets Derivative Liabilities SBA/USDA loan servicing rights Residential mortgage servicing rights Corporate Bonds Derivative Derivative SBA/USDA loan servicing rights Residential mortgage servicing rights Corporate Bonds Three Months Ended June 30, Balance at beginning of period $ 8,308 $ 4,606 $ 6,226 $ 20,728 $ 1,750 $ 7,361 $ 2,717 $ 6,290 $ 11,059 $ — Additions — 97 610 3,792 — 7 — 303 3,217 1,000 Transfers into Level 3 — — — — — 583 — — — — Sales and settlements — — (453) (1,426) — — — (34) (682) — Amounts included in OCI — — — — (43) — — — — — Amounts included in earnings - fair value adjustments (1,419) (759) (268) (1,526) — 4,156 (148) (525) (1,102) — Balance at end of period $ 6,889 $ 3,944 $ 6,115 $ 21,568 $ 1,707 $ 12,107 $ 2,569 $ 6,034 $ 12,492 $ 1,000 Six Months Ended June 30, Balance at beginning of period $ 10,779 $ 2,408 $ 6,462 $ 16,216 $ 1,750 $ 7,238 $ 8,559 $ 6,794 $ 13,565 $ 998 Additions 175 97 839 6,993 — 7 — 398 5,332 1,000 Transfers into Level 3 — — — — — 583 — — — — Sales and settlements — — (644) (2,555) — — — (341) (1,175) (1,000) Amounts included in OCI — — — (43) — — — — 2 Amounts included in earnings - fair value adjustments (4,065) 1,439 (542) 914 — 4,279 (5,990) (817) (5,230) — Balance at end of period $ 6,889 $ 3,944 $ 6,115 $ 21,568 $ 1,707 $ 12,107 $ 2,569 $ 6,034 $ 12,492 $ 1,000
Schedule of reconciliation of liabilities measured at fair value on a recurring basis using significant unobservable inputs	The following table shows a reconciliation of the beginning and ending balances for the periods indicated for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values (in thousands) . 2021 2020 Derivative Assets Derivative Liabilities SBA/USDA loan servicing rights Residential mortgage servicing rights Corporate Bonds Derivative Derivative SBA/USDA loan servicing rights Residential mortgage servicing rights Corporate Bonds Three Months Ended June 30, Balance at beginning of period $ 8,308 $ 4,606 $ 6,226 $ 20,728 $ 1,750 $ 7,361 $ 2,717 $ 6,290 $ 11,059 $ — Additions — 97 610 3,792 — 7 — 303 3,217 1,000 Transfers into Level 3 — — — — — 583 — — — — Sales and settlements — — (453) (1,426) — — — (34) (682) — Amounts included in OCI — — — — (43) — — — — — Amounts included in earnings - fair value adjustments (1,419) (759) (268) (1,526) — 4,156 (148) (525) (1,102) — Balance at end of period $ 6,889 $ 3,944 $ 6,115 $ 21,568 $ 1,707 $ 12,107 $ 2,569 $ 6,034 $ 12,492 $ 1,000 Six Months Ended June 30, Balance at beginning of period $ 10,779 $ 2,408 $ 6,462 $ 16,216 $ 1,750 $ 7,238 $ 8,559 $ 6,794 $ 13,565 $ 998 Additions 175 97 839 6,993 — 7 — 398 5,332 1,000 Transfers into Level 3 — — — — — 583 — — — — Sales and settlements — — (644) (2,555) — — — (341) (1,175) (1,000) Amounts included in OCI — — — (43) — — — — 2 Amounts included in earnings - fair value adjustments (4,065) 1,439 (542) 914 — 4,279 (5,990) (817) (5,230) — Balance at end of period $ 6,889 $ 3,944 $ 6,115 $ 21,568 $ 1,707 $ 12,107 $ 2,569 $ 6,034 $ 12,492 $ 1,000
Schedule of quantitative information about Level 3 fair value measurements for fair value on a recurring basis	The following table presents quantitative information about significant Level 3 inputs for fair value on a recurring basis as of the dates indicated. Level 3 Assets and Liabilities Valuation Technique Significant Unobservable Inputs June 30, 2021 December 31, 2020 Range Weighted Average Range Weighted Average SBA/USDA loan servicing rights Discounted cash flow Discount rate 0.0% - 31.1% 9.3 % 1.6% - 44.1% 8.9 % Prepayment rate 3.0 - 34.3 17.9 2.7 - 33.6 17.8 Residential mortgage servicing rights Discounted cash flow Discount rate 10.0 - 11.0 10.0 10.0 - 11.0 10.0 Prepayment rate 10.3 - 18.0 13.7 8.7 - 19.5 17.7 Corporate bonds Indicative bid provided by a broker Multiple factors, including but not limited to, current operations, financial condition, cash flows, and similar financing transactions executed in the market N/A N/A Discounted cash flow Discount rate 6.7 - 6.9 6.8 Derivative assets - mortgage Internal model Pull through rate 49.8 - 100 85.2 65.6 - 100 83.9 Derivative assets and liabilities - other Dealer priced Dealer priced N/A N/A N/A N/A
Schedule of loans held for sale at fair value under the fair value option	The following tables present the fair value and outstanding principal balance of these loans, as well as the gain or loss recognized resulting from the change in fair value for the periods indicated (in thousands) . Mortgage Loans Held for Sale June 30, 2021 December 31, 2020 Outstanding principal balance $ 94,229 $ 99,746 Fair value 98,194 105,433 Gain (Loss) Recognized on Mortgage Loans Held for Sale Location Three Months Ended Six Months Ended 2020 2019 2021 2020 Mortgage loan gains and other related fees $ 521 $ 1,546 $ (1,721) $ 3,271
Schedule of presentation of assets measured at fair value on nonrecurring basis	The following table presents the fair value hierarchy and carrying value of assets that were still held as of June 30, 2021 and December 31, 2020, for which a nonrecurring fair value adjustment was recorded during the year-to-date periods presented (in thousands) . Level 1 Level 2 Level 3 Total June 30, 2021 Loans $ — $ — $ 3,341 $ 3,341 December 31, 2020 Loans $ — $ — $ 29,404 $ 29,404
Schedule of carrying amount and fair values for other financial instruments that are not measured at fair value on a recurring basis	The carrying amount and fair values as of the dates indicated for other financial instruments that are not measured at fair value on a recurring basis are as follows (in thousands) . Fair Value Level Carrying Amount Level 1 Level 2 Level 3 Total June 30, 2021 Assets: HTM debt securities $ 852,404 $ — $ 861,488 $ — $ 861,488 Loans and leases, net 11,279,130 — — 11,263,533 11,263,533 Liabilities: Deposits 16,327,767 — 16,327,024 — 16,327,024 Long-term debt 261,919 — — 280,049 280,049 December 31, 2020 Assets: HTM debt securities $ 420,361 $ — $ 437,193 $ — $ 437,193 Loans and leases, net 11,233,805 — — 11,209,717 11,209,717 Liabilities: Deposits 15,232,358 — 15,232,274 — 15,232,274 Long-term debt 326,956 — — 336,763 336,763

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Schedule of restricted stock unit activity	The table below presents restricted stock unit activity for the six months ended June 30, 2021. Restricted Stock Unit Awards Shares Weighted- Aggregate Outstanding at December 31, 2020 893,431 $ 23.75 Granted 71,378 30.94 Vested (119,680) 29.19 $ 4,008 Cancelled (47,231) 24.96 Outstanding at June 30, 2021 797,898 23.51 25,541

Reclassifications Out of AOCI (

Reclassifications Out of AOCI (Tables)	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Schedule of reclassifications out of AOCI	The following table presents the details regarding amounts reclassified out of AOCI for the periods indicated (in thousands) . Amounts shown in parentheses reduce earnings. Details about AOCI Components Three Months Ended Six Months Ended Affected Line Item in the Statement Where Net Income is Presented 2021 2020 2021 2020 Realized gains on AFS securities: $ 41 $ — $ 41 $ — Securities gains, net (14) — (14) — Income tax expense $ 27 $ — $ 27 $ — Net of tax Amortization of losses included in net income on AFS securities transferred to HTM: $ — $ (96) $ — $ (179) Investment securities interest revenue — 23 — 43 Income tax benefit $ — $ (73) $ — $ (136) Net of tax Reclassifications related to derivative financial instruments accounted for as cash flow hedges: Interest rate contracts $ (147) $ (67) $ (291) $ (67) Long-term debt interest expense 37 17 74 17 Income tax benefit $ (110) $ (50) $ (217) $ (50) Net of tax Reclassifications related to defined benefit pension plan activity: Prior service cost $ (117) $ (132) $ (234) $ (265) Salaries and employee benefits expense Actuarial losses (144) (82) (288) (163) Other expense (261) (214) (522) (428) Total before tax 67 55 134 109 Income tax benefit $ (194) $ (159) $ (388) $ (319) Net of tax Total reclassifications for the period $ (277) $ (282) $ (578) $ (505) Net of tax

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Schedule of computation of basic and diluted earnings per share	The following table sets forth the computation of basic and diluted earnings per share for the periods indicated (in thousands, except per share data) . Three Months Ended Six Months Ended 2021 2020 2021 2020 Net income $ 70,260 $ 25,096 $ 143,966 $ 56,980 Dividends on preferred stock (1,719) — (3,438) — Undistributed earnings allocated to participating securities (432) (183) (894) (426) Net income available to common shareholders $ 68,109 $ 24,913 $ 139,634 $ 56,554 Weighted average shares outstanding: Basic 87,289 78,920 87,306 79,130 Effect of dilutive securities: Restricted stock units 132 4 137 56 Diluted 87,421 78,924 87,443 79,186 Net income per common share: Basic $ 0.78 $ 0.32 $ 1.60 $ 0.71 Diluted $ 0.78 $ 0.32 $ 1.60 $ 0.71

Regulatory Matters (Tables)

Regulatory Matters (Tables)	6 Months Ended
	Jun. 30, 2021
Regulatory Capital Requirements Under Banking Regulations [Abstract]
Schedule of minimum amounts required for capital adequacy purposes	Regulatory capital ratios at June 30, 2021 and December 31, 2020, along with the minimum amounts required for capital adequacy purposes and to be well-capitalized under prompt corrective action provisions in effect at such times are presented below for United and the Bank (dollars in thousands) : United Community Banks, Inc. United Community Bank Minimum (1) Well- June 30, December 31, June 30, December 31, Risk-based ratios: CET1 capital 4.5 % 6.5 % 12.59 % 12.31 % 13.21 % 13.31 % Tier 1 capital 6.0 8.0 13.34 13.10 13.21 13.31 Total capital 8.0 10.0 15.09 15.15 14.03 14.28 Leverage ratio 4.0 5.0 9.26 9.28 9.16 9.42 CET1 capital $ 1,604,725 $ 1,506,750 $ 1,679,004 $ 1,625,292 Tier 1 capital 1,701,147 1,603,172 1,679,004 1,625,292 Total capital 1,924,680 1,854,368 1,782,537 1,743,045 Risk-weighted assets 12,750,755 12,240,440 12,705,960 12,207,940 Average total assets for the leverage ratio 18,369,878 17,276,853 18,334,952 17,246,878 (1) As of June 30, 2021 and December 31, 2020 the additional capital conservation buffer in effect was 2.50%

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of contractual amount of off-balance sheet instruments	The following table summarizes the contractual amount of off-balance sheet instruments as of the dates indicated (in thousands) . June 30, 2021 December 31, 2020 Financial instruments whose contract amounts represent credit risk: Commitments to extend credit $ 3,259,470 $ 3,052,657 Letters of credit 27,674 31,748

Investment Securities - Amortiz

Investment Securities - Amortized cost, gross unrealized gains and losses, and fair value of HTM debt securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
HTM debt securities:
Amortized Cost	$ 852,404	$ 420,361
Gross Unrealized Gains	14,213	17,332
Gross Unrealized Losses	5,129	500
Fair Value	861,488	437,193
U.S. Treasuries
HTM debt securities:
Amortized Cost	19,788
Gross Unrealized Gains	267
Gross Unrealized Losses	0
Fair Value	20,055
U.S. Government agencies & GSEs
HTM debt securities:
Amortized Cost	59,709	10,575
Gross Unrealized Gains	334	26
Gross Unrealized Losses	351	11
Fair Value	59,692	10,590
State and political subdivisions
HTM debt securities:
Amortized Cost	248,768	197,723
Gross Unrealized Gains	5,742	7,658
Gross Unrealized Losses	1,749	242
Fair Value	252,761	205,139
Residential MBS, Agency & GSEs
HTM debt securities:
Amortized Cost	223,571	113,400
Gross Unrealized Gains	3,706	4,774
Gross Unrealized Losses	1,079	1
Fair Value	226,198	118,173
Commercial MBS, Agency & GSEs
HTM debt securities:
Amortized Cost	285,568	98,663
Gross Unrealized Gains	4,126	4,874
Gross Unrealized Losses	1,950	246
Fair Value	287,744	$ 103,291
Supranational entities
HTM debt securities:
Amortized Cost	15,000
Gross Unrealized Gains	38
Gross Unrealized Losses	0
Fair Value	$ 15,038

Investment Securities - Amort_2

Investment Securities - Amortized cost, gross unrealized gains and losses, and fair value of AFS debt securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
AFS debt securities:
Amortized Cost	$ 4,043,180	$ 3,152,111
Gross Unrealized Gains	56,773	75,108
Gross Unrealized Losses	24,172	2,498
Fair Value	4,075,781	3,224,721
U.S. Treasuries
AFS debt securities:
Amortized Cost	138,884	123,677
Gross Unrealized Gains	3,196	4,395
Gross Unrealized Losses	0	0
Fair Value	142,080	128,072
U.S. Government agencies & GSEs
AFS debt securities:
Amortized Cost	153,601	152,596
Gross Unrealized Gains	871	701
Gross Unrealized Losses	1,848	325
Fair Value	152,624	152,972
State and political subdivisions
AFS debt securities:
Amortized Cost	273,433	253,630
Gross Unrealized Gains	17,154	20,891
Gross Unrealized Losses	1,241	49
Fair Value	289,346	274,472
Residential MBS, Agency & GSEs
AFS debt securities:
Amortized Cost	1,831,697	1,275,551
Gross Unrealized Gains	21,089	29,107
Gross Unrealized Losses	11,809	766
Fair Value	1,840,977	1,303,892
Residential MBS, Non-agency
AFS debt securities:
Amortized Cost	132,100	174,322
Gross Unrealized Gains	3,972	7,499
Gross Unrealized Losses	4	128
Fair Value	136,068	181,693
Commercial MBS, Agency & GSEs
AFS debt securities:
Amortized Cost	695,417	524,852
Gross Unrealized Gains	4,626	8,013
Gross Unrealized Losses	8,676	597
Fair Value	691,367	532,268
Commercial MBS, Non-agency
AFS debt securities:
Amortized Cost	15,219	15,350
Gross Unrealized Gains	1,622	1,513
Gross Unrealized Losses	0	0
Fair Value	16,841	16,863
Corporate bonds
AFS debt securities:
Amortized Cost	150,736	70,057
Gross Unrealized Gains	1,329	1,711
Gross Unrealized Losses	254	1
Fair Value	151,811	71,767
Asset-backed securities
AFS debt securities:
Amortized Cost	652,093	562,076
Gross Unrealized Gains	2,914	1,278
Gross Unrealized Losses	340	632
Fair Value	$ 654,667	$ 562,722

Investment Securities - Narrati

Investment Securities - Narrative (Details)	Jun. 30, 2021USD ($)security	Dec. 31, 2020USD ($)
Investments, Debt and Equity Securities [Abstract]
Carrying value of securities pledged to secure public deposits, derivatives and other secured borrowings	$ 1,150,000,000	$ 1,110,000,000
Number of AFS debt securities in unrealized loss position | security	232
Number of HTM debt securities in unrealized loss position | security	49
Allowance for credit losses, HTM portfolio	$ 0	0
Allowance for credit losses, AFS portfolio	$ 0	$ 0

Investment Securities - HTM deb

Investment Securities - HTM debt securities in unrealized loss position (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	$ 310,741	$ 45,502
Unrealized Loss, Less than 12 Months	5,128	490
Fair Value, 12 Months or More	120	1,352
Unrealized Loss, 12 Months or More	1	10
Fair Value, Total	310,861	46,854
Unrealized Loss, Total	5,129	500
U.S. Government agencies & GSEs
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	10,143	4,677
Unrealized Loss, Less than 12 Months	351	11
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	10,143	4,677
Unrealized Loss, Total	351	11
State and political subdivisions
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	85,484	14,870
Unrealized Loss, Less than 12 Months	1,749	242
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	85,484	14,870
Unrealized Loss, Total	1,749	242
Residential MBS, Agency & GSEs
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	89,888	999
Unrealized Loss, Less than 12 Months	1,078	1
Fair Value, 12 Months or More	120	0
Unrealized Loss, 12 Months or More	1	0
Fair Value, Total	90,008	999
Unrealized Loss, Total	1,079	1
Commercial MBS, Agency & GSEs
Summary of HTM debt securities in an unrealized loss position
Fair Value, Less than 12 Months	125,226	24,956
Unrealized Loss, Less than 12 Months	1,950	236
Fair Value, 12 Months or More	0	1,352
Unrealized Loss, 12 Months or More	0	10
Fair Value, Total	125,226	26,308
Unrealized Loss, Total	$ 1,950	$ 246

Investment Securities - AFS deb

Investment Securities - AFS debt securities in unrealized loss position (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	$ 1,659,322	$ 450,517
Unrealized Loss, Less than 12 Months	24,080	1,893
Fair Value, 12 Months or More	29,037	54,194
Unrealized Loss, 12 Months or More	92	605
Fair Value, Total	1,688,359	504,711
Unrealized Loss, Total	24,172	2,498
U.S. Government agencies & GSEs
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	78,309	27,952
Unrealized Loss, Less than 12 Months	1,848	324
Fair Value, 12 Months or More	0	607
Unrealized Loss, 12 Months or More	0	1
Fair Value, Total	78,309	28,559
Unrealized Loss, Total	1,848	325
State and political subdivisions
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	52,132	9,402
Unrealized Loss, Less than 12 Months	1,241	49
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	52,132	9,402
Unrealized Loss, Total	1,241	49
Residential MBS, Agency & GSEs
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	897,499	232,199
Unrealized Loss, Less than 12 Months	11,799	766
Fair Value, 12 Months or More	847	0
Unrealized Loss, 12 Months or More	10	0
Fair Value, Total	898,346	232,199
Unrealized Loss, Total	11,809	766
Residential MBS, Non-agency
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	0	2,331
Unrealized Loss, Less than 12 Months	0	128
Fair Value, 12 Months or More	2,455	0
Unrealized Loss, 12 Months or More	4	0
Fair Value, Total	2,455	2,331
Unrealized Loss, Total	4	128
Commercial MBS, Agency & GSEs
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	457,568	89,918
Unrealized Loss, Less than 12 Months	8,633	597
Fair Value, 12 Months or More	1,025	0
Unrealized Loss, 12 Months or More	43	0
Fair Value, Total	458,593	89,918
Unrealized Loss, Total	8,676	597
Corporate bonds
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	56,854	1,410
Unrealized Loss, Less than 12 Months	254	1
Fair Value, 12 Months or More	0	0
Unrealized Loss, 12 Months or More	0	0
Fair Value, Total	56,854	1,410
Unrealized Loss, Total	254	1
Asset-backed securities
Summary of AFS debt securities in an unrealized loss position
Fair Value, Less than 12 Months	116,960	87,305
Unrealized Loss, Less than 12 Months	305	28
Fair Value, 12 Months or More	24,710	53,587
Unrealized Loss, 12 Months or More	35	604
Fair Value, Total	141,670	140,892
Unrealized Loss, Total	$ 340	$ 632

Investment Securities - Accrued

Investment Securities - Accrued interest receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Accrued interest receivable
Accrued interest receivable	$ 43,521	$ 47,672
HTM
Accrued interest receivable
Accrued interest receivable	2,886	1,784
AFS
Accrued interest receivable
Accrued interest receivable	$ 9,809	$ 9,114

Investment Securities - Amort_3

Investment Securities - Amortized cost and fair value of AFS and HTM debt securities by contractual maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	$ 76,743
AFS, Amortized Cost, 1 to 5 years	207,381
AFS, Amortized Cost, 5 to 10 years	251,835
AFS, Amortized Cost, More than 10 years	180,695
Amortized Cost	4,043,180	$ 3,152,111
AFS, Fair Value
AFS, Fair Value, Within 1 year	77,178
AFS, Fair Value, 1 to 5 years	213,035
AFS, Fair Value, 5 to 10 years	255,341
AFS, Fair Value, More than 10 years	190,307
Fair Value	4,075,781	3,224,721
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	1,700
HTM, Amortized Cost, 1 to 5 years	14,501
HTM, Amortized Cost, 5 to 10 years	95,518
HTM, Amortized Cost, More than 10 years	231,546
Amortized Cost	852,404	420,361
HTM, Fair Value
HTM, Fair Value, Within 1 year	1,718
HTM, Fair Value, 1 to 5 years	15,763
HTM, Fair Value, 5 to 10 years	97,199
HTM, Fair Value, More than 10 years	232,866
Fair value	861,488	437,193
U.S. Treasuries
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	44,930
AFS, Amortized Cost, 1 to 5 years	79,030
AFS, Amortized Cost, 5 to 10 years	14,924
Amortized Cost	138,884	123,677
AFS, Fair Value
AFS, Fair Value, Within 1 year	45,341
AFS, Fair Value, 1 to 5 years	81,706
AFS, Fair Value, 5 to 10 years	15,033
Fair Value	142,080	128,072
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	0
HTM, Amortized Cost, 1 to 5 years	0
HTM, Amortized Cost, 5 to 10 years	19,788
Amortized Cost	19,788
HTM, Fair Value
HTM, Fair Value, Within 1 year	0
HTM, Fair Value, 1 to 5 years	0
HTM, Fair Value, 5 to 10 years	20,055
Fair value	20,055
U.S. Government agencies & GSEs
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	279
AFS, Amortized Cost, 1 to 5 years	13,835
AFS, Amortized Cost, 5 to 10 years	82,724
AFS, Amortized Cost, More than 10 years	56,763
Amortized Cost	153,601	152,596
AFS, Fair Value
AFS, Fair Value, Within 1 year	281
AFS, Fair Value, 1 to 5 years	13,894
AFS, Fair Value, 5 to 10 years	81,373
AFS, Fair Value, More than 10 years	57,076
Fair Value	152,624	152,972
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	0
HTM, Amortized Cost, 1 to 5 years	0
HTM, Amortized Cost, 5 to 10 years	29,604
HTM, Amortized Cost, More than 10 years	30,105
Amortized Cost	59,709	10,575
HTM, Fair Value
HTM, Fair Value, Within 1 year	0
HTM, Fair Value, 1 to 5 years	0
HTM, Fair Value, 5 to 10 years	29,879
HTM, Fair Value, More than 10 years	29,813
Fair value	59,692	10,590
State and political subdivisions
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	20,000
AFS, Amortized Cost, 1 to 5 years	43,350
AFS, Amortized Cost, 5 to 10 years	86,931
AFS, Amortized Cost, More than 10 years	123,152
Amortized Cost	273,433	253,630
AFS, Fair Value
AFS, Fair Value, Within 1 year	20,000
AFS, Fair Value, 1 to 5 years	45,580
AFS, Fair Value, 5 to 10 years	91,420
AFS, Fair Value, More than 10 years	132,346
Fair Value	289,346	274,472
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	1,700
HTM, Amortized Cost, 1 to 5 years	14,501
HTM, Amortized Cost, 5 to 10 years	31,126
HTM, Amortized Cost, More than 10 years	201,441
Amortized Cost	248,768	197,723
HTM, Fair Value
HTM, Fair Value, Within 1 year	1,718
HTM, Fair Value, 1 to 5 years	15,763
HTM, Fair Value, 5 to 10 years	32,227
HTM, Fair Value, More than 10 years	203,053
Fair value	252,761	205,139
Corporate bonds
AFS, Amortized Cost
AFS, Amortized Cost, Within 1 year	11,534
AFS, Amortized Cost, 1 to 5 years	71,166
AFS, Amortized Cost, 5 to 10 years	67,256
AFS, Amortized Cost, More than 10 years	780
Amortized Cost	150,736	70,057
AFS, Fair Value
AFS, Fair Value, Within 1 year	11,556
AFS, Fair Value, 1 to 5 years	71,855
AFS, Fair Value, 5 to 10 years	67,515
AFS, Fair Value, More than 10 years	885
Fair Value	151,811	71,767
HTM, Amortized Cost
HTM, Amortized Cost, Within 1 year	0
HTM, Amortized Cost, 1 to 5 years	0
HTM, Amortized Cost, 5 to 10 years	0
HTM, Amortized Cost, More than 10 years	0
HTM, Fair Value
HTM, Fair Value, Within 1 year	0
HTM, Fair Value, 1 to 5 years	0
HTM, Fair Value, 5 to 10 years	0
HTM, Fair Value, More than 10 years	0
Supranational entities
AFS, Amortized Cost
AFS, Amortized Cost, 5 to 10 years	0
AFS, Fair Value
AFS, Fair Value, 5 to 10 years	0
HTM, Amortized Cost
HTM, Amortized Cost, 5 to 10 years	15,000
Amortized Cost	15,000
HTM, Fair Value
HTM, Fair Value, 5 to 10 years	15,038
Fair value	15,038
Asset-backed securities
AFS, Amortized Cost
AFS, Amortized Cost, Not due at single maturity	652,093
Amortized Cost	652,093	562,076
AFS, Fair Value
AFS, Fair Value, Not due at single maturity	654,667
Fair Value	654,667	$ 562,722
HTM, Amortized Cost
HTM, Amortized Cost, Not due at single maturity	0
HTM, Fair Value
HTM, Fair Value, Not due at single maturity	0
Residential MBS
AFS, Amortized Cost
AFS, Amortized Cost, Not due at single maturity	1,963,797
AFS, Fair Value
AFS, Fair Value, Not due at single maturity	1,977,045
HTM, Amortized Cost
HTM, Amortized Cost, Not due at single maturity	223,571
HTM, Fair Value
HTM, Fair Value, Not due at single maturity	226,198
Commercial MBS
AFS, Amortized Cost
AFS, Amortized Cost, Not due at single maturity	710,636
AFS, Fair Value
AFS, Fair Value, Not due at single maturity	708,208
HTM, Amortized Cost
HTM, Amortized Cost, Not due at single maturity	285,568
HTM, Fair Value
HTM, Fair Value, Not due at single maturity	$ 287,744

Investment Securities - AFS sal

Investment Securities - AFS sales activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 78,111	$ 0	$ 78,111	$ 1,000
Gross realized gains	641	0	641	0
Gross realized losses	(600)	0	(600)	0
Securities gains, net	41	0	41	0
Income tax expense attributable to sales	$ 14	$ 0	$ 14	$ 0

Loans and Leases and Allowanc_3

Loans and Leases and Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable	$ 43,521	$ 47,672
Net investment in leases	37,757	36,802
TDRs	57,300	61,600
Loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivable	29,700	35,500
Short-term deferrals related to COVID-19 crisis	$ 17,800	$ 70,700

Loans and Leases and Allowanc_4

Loans and Leases and Allowance for Credit Losses - Major classifications of loan portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Classifications of loans
Total loans	$ 11,390,746		$ 11,370,815
Less allowance for credit losses - loans	(111,616)	$ (126,866)	(137,010)	$ (103,669)	$ (81,905)	$ (62,089)
Loans and leases, net	11,279,130		11,233,805
Loans receivable
Classifications of loans
Total loans	11,390,746		11,370,815
Loans receivable | Commercial
Classifications of loans
Total loans	8,829,874		8,960,888
Loans receivable | Commercial | Owner occupied commercial real estate
Classifications of loans
Total loans	2,149,371		2,090,443
Less allowance for credit losses - loans	(17,292)	(19,282)	(20,673)	(14,592)	(11,000)	(11,404)
Loans receivable | Commercial | Income producing commercial real estate
Classifications of loans
Total loans	2,550,243		2,540,750
Less allowance for credit losses - loans	(30,967)	(34,911)	(41,737)	(21,699)	(16,584)	(12,306)
Loans receivable | Commercial | Commercial & industrial
Classifications of loans
Total loans	2,234,646		2,498,560
Less allowance for credit losses - loans	(16,414)	(21,750)	(22,019)	(8,589)	(10,831)	(5,266)
Loans receivable | Commercial | PPP loans included in commercial & industrial
Classifications of loans
Total loans	472,000		646,000
Loans receivable | Commercial | Construction
Classifications of loans
Total loans	926,809		967,305
Less allowance for credit losses - loans	(9,180)	(10,572)	(10,952)	(14,514)	(9,556)	(9,668)
Loans receivable | Commercial | Equipment financing
Classifications of loans
Total loans	968,805		863,830
Less allowance for credit losses - loans	(18,100)	(17,200)	(16,820)	(20,305)	(14,738)	(7,384)
Loans receivable | Residential | Residential mortgage
Classifications of loans
Total loans	1,472,608		1,284,920
Less allowance for credit losses - loans	(10,965)	(14,580)	(15,341)	(12,826)	(11,063)	(8,081)
Loans receivable | Residential | HELOC
Classifications of loans
Total loans	660,881		697,117
Less allowance for credit losses - loans	(6,357)	(6,880)	(8,417)	(8,687)	(6,887)	(4,575)
Loans receivable | Residential | Construction
Classifications of loans
Total loans	288,708		281,430
Less allowance for credit losses - loans	(1,918)	(1,362)	(764)	(1,997)	(816)	(2,504)
Loans receivable | Consumer
Classifications of loans
Total loans	138,675		146,460
Less allowance for credit losses - loans	$ (423)	$ (329)	$ (287)	$ (460)	$ (430)	$ (901)

Loans and Leases and Allowanc_5

Loans and Leases and Allowance for Credit Losses - Loans held for investment sold (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans sold	$ 51,211	$ 15,739	$ 63,615	$ 41,990
Guaranteed portion of SBA/USDA loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans sold	32,303	14,035	43,648	18,069
Equipment financing receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans sold	$ 18,908	$ 1,704	$ 19,967	$ 23,921

Loans and Leases and Allowanc_6

Loans and Leases and Allowance for Credit Losses - Components of net investment in leases (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Net Investment in Leases
Minimum future lease payments receivable	$ 39,948	$ 38,934
Estimated residual value of leased equipment	3,269	3,263
Initial direct costs	668	672
Security deposits	(672)	(727)
Purchase accounting premium	69	117
Unearned income	(5,525)	(5,457)
Net investment in leases	$ 37,757	$ 36,802

Loans and Leases and Allowanc_7

Loans and Leases and Allowance for Credit Losses - Minimum future lease payments expected to be received from equipment financing lease contracts (Details) $ in Thousands	Jun. 30, 2021USD ($)
Minimum future lease payments expected to be received
Remainder of 2021	$ 8,161
2022	13,830
2023	9,601
2024	5,161
2025	2,741
Thereafter	454
Total	$ 39,948

Loans and Leases and Allowanc_8

Loans and Leases and Allowance for Credit Losses - Loans by aging category and accrual status (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total loans	$ 11,390,746	$ 11,370,815
Loans receivable
Financing Receivable, Past Due [Line Items]
Total loans	11,390,746	11,370,815
Nonaccrual Loans	46,123	61,599
Loans receivable | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	11,334,346	11,288,847
Loans receivable | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	8,093	15,744
Loans receivable | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	2,184	4,625
Loans receivable | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial
Financing Receivable, Past Due [Line Items]
Total loans	8,829,874	8,960,888
Nonaccrual Loans	30,791	45,515
Loans receivable | Commercial | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	8,793,523	8,905,003
Loans receivable | Commercial | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	4,372	7,459
Loans receivable | Commercial | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	1,188	2,911
Loans receivable | Commercial | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Owner occupied commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	2,149,371	2,090,443
Nonaccrual Loans	6,128	8,582
Loans receivable | Commercial | Owner occupied commercial real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	2,141,403	2,079,845
Loans receivable | Commercial | Owner occupied commercial real estate | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	1,666	2,013
Loans receivable | Commercial | Owner occupied commercial real estate | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	174	3
Loans receivable | Commercial | Owner occupied commercial real estate | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Income producing commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	2,550,243	2,540,750
Nonaccrual Loans	13,100	15,149
Loans receivable | Commercial | Income producing commercial real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	2,536,332	2,522,743
Loans receivable | Commercial | Income producing commercial real estate | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	592	1,608
Loans receivable | Commercial | Income producing commercial real estate | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	219	1,250
Loans receivable | Commercial | Income producing commercial real estate | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Commercial & industrial
Financing Receivable, Past Due [Line Items]
Total loans	2,234,646	2,498,560
Nonaccrual Loans	8,563	16,634
Loans receivable | Commercial | Commercial & industrial | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	2,225,062	2,480,483
Loans receivable | Commercial | Commercial & industrial | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	1,004	1,176
Loans receivable | Commercial | Commercial & industrial | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	17	267
Loans receivable | Commercial | Commercial & industrial | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Construction
Financing Receivable, Past Due [Line Items]
Total loans	926,809	967,305
Nonaccrual Loans	1,229	1,745
Loans receivable | Commercial | Construction | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	925,376	964,947
Loans receivable | Commercial | Construction | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	199	231
Loans receivable | Commercial | Construction | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	5	382
Loans receivable | Commercial | Construction | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Commercial | Equipment financing
Financing Receivable, Past Due [Line Items]
Total loans	968,805	863,830
Nonaccrual Loans	1,771	3,405
Loans receivable | Commercial | Equipment financing | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	965,350	856,985
Loans receivable | Commercial | Equipment financing | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	911	2,431
Loans receivable | Commercial | Equipment financing | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	773	1,009
Loans receivable | Commercial | Equipment financing | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Residential mortgage
Financing Receivable, Past Due [Line Items]
Total loans	1,472,608	1,284,920
Nonaccrual Loans	13,485	12,858
Loans receivable | Residential | Residential mortgage | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	1,456,280	1,265,019
Loans receivable | Residential | Residential mortgage | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	2,090	5,549
Loans receivable | Residential | Residential mortgage | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	753	1,494
Loans receivable | Residential | Residential mortgage | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | HELOC
Financing Receivable, Past Due [Line Items]
Total loans	660,881	697,117
Nonaccrual Loans	1,433	2,487
Loans receivable | Residential | HELOC | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	658,224	692,504
Loans receivable | Residential | HELOC | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	1,015	1,942
Loans receivable | Residential | HELOC | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	209	184
Loans receivable | Residential | HELOC | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Construction
Financing Receivable, Past Due [Line Items]
Total loans	288,708	281,430
Nonaccrual Loans	307	514
Loans receivable | Residential | Construction | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	288,032	280,551
Loans receivable | Residential | Construction | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	369	365
Loans receivable | Residential | Construction | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Residential | Construction | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	0	0
Loans receivable | Consumer
Financing Receivable, Past Due [Line Items]
Total loans	138,675	146,460
Nonaccrual Loans	107	225
Loans receivable | Consumer | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans	138,287	145,770
Loans receivable | Consumer | Loans Past Due, 30 - 59 Days
Financing Receivable, Past Due [Line Items]
Total loans	247	429
Loans receivable | Consumer | Loans Past Due, 60 - 89 Days
Financing Receivable, Past Due [Line Items]
Total loans	34	36
Loans receivable | Consumer | Loans Past Due, over 90 Days
Financing Receivable, Past Due [Line Items]
Total loans	$ 0	$ 0

Loans and Leases and Allowanc_9

Loans and Leases and Allowance for Credit Losses - Nonaccrual loans by loan class (Details) - Loans receivable - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Nonaccrual loans
Nonaccrual loans with no allowance	$ 27,670	$ 23,760
Nonaccrual loans with an allowance	18,453	37,839
Nonaccrual loans	46,123	61,599
Commercial
Nonaccrual loans
Nonaccrual loans with no allowance	24,273	20,121
Nonaccrual loans with an allowance	6,518	25,394
Nonaccrual loans	30,791	45,515
Commercial | Owner occupied commercial real estate
Nonaccrual loans
Nonaccrual loans with no allowance	3,865	6,614
Nonaccrual loans with an allowance	2,263	1,968
Nonaccrual loans	6,128	8,582
Commercial | Income producing commercial real estate
Nonaccrual loans
Nonaccrual loans with no allowance	12,515	10,008
Nonaccrual loans with an allowance	585	5,141
Nonaccrual loans	13,100	15,149
Commercial | Commercial & industrial
Nonaccrual loans
Nonaccrual loans with no allowance	7,143	2,004
Nonaccrual loans with an allowance	1,420	14,630
Nonaccrual loans	8,563	16,634
Commercial | Construction
Nonaccrual loans
Nonaccrual loans with no allowance	750	1,339
Nonaccrual loans with an allowance	479	406
Nonaccrual loans	1,229	1,745
Commercial | Equipment financing
Nonaccrual loans
Nonaccrual loans with no allowance	0	156
Nonaccrual loans with an allowance	1,771	3,249
Nonaccrual loans	1,771	3,405
Residential | Residential mortgage
Nonaccrual loans
Nonaccrual loans with no allowance	3,279	1,855
Nonaccrual loans with an allowance	10,206	11,003
Nonaccrual loans	13,485	12,858
Residential | HELOC
Nonaccrual loans
Nonaccrual loans with no allowance	117	1,329
Nonaccrual loans with an allowance	1,316	1,158
Nonaccrual loans	1,433	2,487
Residential | Construction
Nonaccrual loans
Nonaccrual loans with no allowance	0	274
Nonaccrual loans with an allowance	307	240
Nonaccrual loans	307	514
Consumer
Nonaccrual loans
Nonaccrual loans with no allowance	1	181
Nonaccrual loans with an allowance	106	44
Nonaccrual loans	$ 107	$ 225

Loans and Leases and Allowan_10

Loans and Leases and Allowance for Credit Losses - Amortized cost of loans by risk category by vintage year (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	$ 2,542,320	$ 4,219,098
Originated in prior year	3,213,333	1,865,899
Originated two years prior	1,484,251	1,433,719
Originated three years prior	1,049,845	874,745
Originated four years prior	671,500	759,094
Originated five or more years prior	1,084,750	789,304
Revolvers	1,289,309	1,368,554
Revolvers converted to term loans	55,438	60,402
Total loans	11,390,746	11,370,815
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	2,469,997	4,093,543
Originated in prior year	3,106,641	1,773,077
Originated two years prior	1,380,553	1,352,195
Originated three years prior	940,710	815,046
Originated four years prior	589,522	669,394
Originated five or more years prior	985,410	753,530
Revolvers	1,259,761	1,338,027
Revolvers converted to term loans	49,199	52,038
Total loans	10,781,793	10,846,850
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	41,799	67,047
Originated in prior year	65,769	63,506
Originated two years prior	81,298	47,167
Originated three years prior	58,936	47,185
Originated four years prior	62,970	47,536
Originated five or more years prior	38,913	16,559
Revolvers	19,191	6,564
Revolvers converted to term loans	1,088	1,681
Total loans	369,964	297,245
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	30,524	58,508
Originated in prior year	40,923	29,316
Originated two years prior	22,400	34,357
Originated three years prior	50,199	12,514
Originated four years prior	19,008	42,164
Originated five or more years prior	60,427	19,215
Revolvers	10,357	23,963
Revolvers converted to term loans	5,151	6,683
Total loans	238,989	226,720
Commercial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	1,852,421	3,343,874
Originated in prior year	2,524,099	1,521,690
Originated two years prior	1,221,821	1,208,471
Originated three years prior	836,473	685,027
Originated four years prior	494,720	540,614
Originated five or more years prior	702,493	508,536
Revolvers	580,316	620,686
Revolvers converted to term loans	28,828	28,924
Total loans	8,241,171	8,457,822
Commercial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	41,799	67,047
Originated in prior year	65,769	63,506
Originated two years prior	81,298	47,167
Originated three years prior	58,936	47,185
Originated four years prior	62,970	47,536
Originated five or more years prior	38,913	16,559
Revolvers	19,191	6,564
Revolvers converted to term loans	1,088	1,681
Total loans	369,964	297,245
Commercial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	29,738	56,353
Originated in prior year	39,225	27,076
Originated two years prior	19,989	31,080
Originated three years prior	46,339	11,081
Originated four years prior	17,525	41,283
Originated five or more years prior	53,552	12,877
Revolvers	10,289	23,698
Revolvers converted to term loans	2,082	2,373
Total loans	218,739	205,821
Commercial | Owner occupied commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	348,878	707,501
Originated in prior year	692,889	368,615
Originated two years prior	300,165	231,316
Originated three years prior	173,797	197,778
Originated four years prior	163,854	201,362
Originated five or more years prior	309,564	229,667
Revolvers	48,247	56,273
Revolvers converted to term loans	10,973	9,072
Total loans	2,048,367	2,001,584
Commercial | Owner occupied commercial real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	10,313	8,759
Originated in prior year	5,379	4,088
Originated two years prior	15,503	4,221
Originated three years prior	3,839	10,025
Originated four years prior	4,036	11,138
Originated five or more years prior	8,610	4,728
Revolvers	247	100
Revolvers converted to term loans	286	0
Total loans	48,213	43,059
Commercial | Owner occupied commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	10,561	6,586
Originated in prior year	1,636	10,473
Originated two years prior	11,185	7,596
Originated three years prior	8,450	3,717
Originated four years prior	6,871	6,753
Originated five or more years prior	12,267	8,473
Revolvers	1,300	1,528
Revolvers converted to term loans	521	674
Total loans	52,791	45,800
Commercial | Income producing commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	349,737	815,799
Originated in prior year	772,304	376,911
Originated two years prior	338,003	361,539
Originated three years prior	272,816	277,769
Originated four years prior	214,741	206,068
Originated five or more years prior	273,090	198,080
Revolvers	33,109	28,542
Revolvers converted to term loans	12,088	12,128
Total loans	2,265,888	2,276,836
Commercial | Income producing commercial real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	12,003	35,471
Originated in prior year	28,577	42,831
Originated two years prior	45,452	39,954
Originated three years prior	37,606	13,238
Originated four years prior	19,349	24,164
Originated five or more years prior	29,947	11,337
Revolvers	0	0
Revolvers converted to term loans	0	1,681
Total loans	172,934	168,676
Commercial | Income producing commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	16,656	45,125
Originated in prior year	34,733	8,940
Originated two years prior	2,681	2,179
Originated three years prior	16,799	5,034
Originated four years prior	8,718	31,211
Originated five or more years prior	31,744	2,652
Revolvers	0	0
Revolvers converted to term loans	90	97
Total loans	111,421	95,238
Commercial | Commercial & industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	684,472	1,092,767
Originated in prior year	426,442	287,857
Originated two years prior	195,329	263,439
Originated three years prior	173,366	115,790
Originated four years prior	62,870	92,968
Originated five or more years prior	103,609	58,359
Revolvers	490,906	515,593
Revolvers converted to term loans	3,737	3,777
Total loans	2,140,731	2,430,550
Commercial | Commercial & industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	18,804	1,451
Originated in prior year	13,050	16,315
Originated two years prior	7,400	2,176
Originated three years prior	243	630
Originated four years prior	1,208	459
Originated five or more years prior	293	17
Revolvers	18,944	6,464
Revolvers converted to term loans	802	0
Total loans	60,744	27,512
Commercial | Commercial & industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	1,238	1,545
Originated in prior year	1,638	5,536
Originated two years prior	4,755	6,193
Originated three years prior	7,122	1,684
Originated four years prior	1,882	1,292
Originated five or more years prior	7,081	1,485
Revolvers	8,989	22,170
Revolvers converted to term loans	466	593
Total loans	33,171	40,498
Commercial | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	175,452	314,154
Originated in prior year	300,989	217,643
Originated two years prior	167,938	226,308
Originated three years prior	124,411	53,708
Originated four years prior	28,142	30,812
Originated five or more years prior	12,596	21,985
Revolvers	8,054	20,278
Revolvers converted to term loans	2,030	3,947
Total loans	819,612	888,835
Commercial | Construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	679	21,366
Originated in prior year	18,763	272
Originated two years prior	12,943	816
Originated three years prior	17,248	23,292
Originated four years prior	38,377	11,775
Originated five or more years prior	63	477
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	88,073	57,998
Commercial | Construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	1,035	2,466
Originated in prior year	432	735
Originated two years prior	712	13,741
Originated three years prior	13,496	340
Originated four years prior	0	1,931
Originated five or more years prior	2,444	250
Revolvers	0	0
Revolvers converted to term loans	1,005	1,009
Total loans	19,124	20,472
Commercial | Equipment financing | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	293,882	413,653
Originated in prior year	331,475	270,664
Originated two years prior	220,386	125,869
Originated three years prior	92,083	39,982
Originated four years prior	25,113	9,404
Originated five or more years prior	3,634	445
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	966,573	860,017
Commercial | Equipment financing | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	0	0
Commercial | Equipment financing | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	248	631
Originated in prior year	786	1,392
Originated two years prior	656	1,371
Originated three years prior	472	306
Originated four years prior	54	96
Originated five or more years prior	16	17
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	2,232	3,813
Residential | Residential mortgage | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	448,846	468,945
Originated in prior year	416,688	195,213
Originated two years prior	136,631	125,492
Originated three years prior	91,877	120,944
Originated four years prior	88,511	122,013
Originated five or more years prior	268,040	230,771
Revolvers	14	18
Revolvers converted to term loans	4,883	5,393
Total loans	1,455,490	1,268,789
Residential | Residential mortgage | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	0	0
Residential | Residential mortgage | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	786	2,049
Originated in prior year	1,653	2,106
Originated two years prior	2,336	3,174
Originated three years prior	3,778	1,369
Originated four years prior	1,440	679
Originated five or more years prior	6,340	5,860
Revolvers	0	0
Revolvers converted to term loans	785	894
Total loans	17,118	16,131
Residential | HELOC | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	643,249	675,878
Revolvers converted to term loans	15,303	17,581
Total loans	658,552	693,459
Residential | HELOC | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	0	0
Residential | HELOC | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	68	265
Revolvers converted to term loans	2,261	3,393
Total loans	2,329	3,658
Residential | Construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	135,105	225,727
Originated in prior year	128,013	30,646
Originated two years prior	5,196	4,026
Originated three years prior	3,724	4,544
Originated four years prior	3,776	3,172
Originated five or more years prior	12,244	12,546
Revolvers	56	0
Revolvers converted to term loans	53	64
Total loans	288,167	280,725
Residential | Construction | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	0	0
Residential | Construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	106
Originated in prior year	39	37
Originated two years prior	33	54
Originated three years prior	52	4
Originated four years prior	2	124
Originated five or more years prior	415	380
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	541	705
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	33,625	54,997
Originated in prior year	37,841	25,528
Originated two years prior	16,905	14,206
Originated three years prior	8,636	4,531
Originated four years prior	2,515	3,595
Originated five or more years prior	2,633	1,677
Revolvers	36,126	41,445
Revolvers converted to term loans	132	76
Total loans	138,413	146,055
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	0	0
Originated two years prior	0	0
Originated three years prior	0	0
Originated four years prior	0	0
Originated five or more years prior	0	0
Revolvers	0	0
Revolvers converted to term loans	0	0
Total loans	0	0
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Originated in current fiscal year	0	0
Originated in prior year	6	97
Originated two years prior	42	49
Originated three years prior	30	60
Originated four years prior	41	78
Originated five or more years prior	120	98
Revolvers	0	0
Revolvers converted to term loans	23	23
Total loans	$ 262	$ 405

Loans and Leases and Allowan_11

Loans and Leases and Allowance for Credit Losses - Loans modified under terms of TDR (Details) - Loans receivable $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)contract	Jun. 30, 2020USD ($)contract	Jun. 30, 2021USD ($)contract	Jun. 30, 2020USD ($)contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	17	140	51	158
Post-Modification Amortized Cost by Type of Modification	$ 1,934	$ 4,938	$ 5,870	$ 6,883
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	6	8	13	10
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 187	$ 6,935	$ 673	$ 6,944
Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	1,556	4,370	4,070	5,149
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 378	$ 568	$ 1,800	$ 1,734
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	12	133	45	144
Post-Modification Amortized Cost by Type of Modification	$ 1,612	$ 4,287	$ 5,479	$ 5,943
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	5	8	9	9
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 138	$ 6,935	$ 211	$ 6,941
Commercial | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Commercial | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	1,234	3,726	3,679	4,227
Commercial | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 378	$ 561	$ 1,800	$ 1,716
Commercial | Owner occupied commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	1	2	1	3
Post-Modification Amortized Cost by Type of Modification	$ 543	$ 546	$ 543	$ 1,536
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	0	0	0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial | Owner occupied commercial real estate | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Commercial | Owner occupied commercial real estate | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	543	0	543	0
Commercial | Owner occupied commercial real estate | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 546	$ 0	$ 1,536
Commercial | Income producing commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	1	0	3	3
Post-Modification Amortized Cost by Type of Modification	$ 378	$ 0	$ 1,697	$ 232
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	1	0	1
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 5,998	$ 0	$ 5,998
Commercial | Income producing commercial real estate | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Commercial | Income producing commercial real estate | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	67
Commercial | Income producing commercial real estate | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 378	$ 0	$ 1,697	$ 165
Commercial | Commercial & industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	2	1	4	1
Post-Modification Amortized Cost by Type of Modification	$ 365	$ 15	$ 468	$ 15
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	1	1	2
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 627	$ 11	$ 633
Commercial | Commercial & industrial | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Commercial | Commercial & industrial | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	365	0	365	0
Commercial | Commercial & industrial | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 15	$ 103	$ 15
Commercial | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	1	1	1
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 255	$ 309	$ 255
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	0	0	0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial | Construction | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Commercial | Construction | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	255	309	255
Commercial | Construction | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
Commercial | Equipment financing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	8	129	36	136
Post-Modification Amortized Cost by Type of Modification	$ 326	$ 3,471	$ 2,462	$ 3,905
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	5	6	8	6
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 138	$ 310	$ 200	$ 310
Commercial | Equipment financing | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Commercial | Equipment financing | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	326	3,471	2,462	3,905
Commercial | Equipment financing | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
Residential | Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	5	6	6	11
Post-Modification Amortized Cost by Type of Modification	$ 322	$ 644	$ 391	$ 922
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	0	3	0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 413	$ 0
Residential | Residential mortgage | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Residential | Residential mortgage | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	322	644	391	922
Residential | Residential mortgage | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
Residential | HELOC
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	0	0	0
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	1	0	1	0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 49	$ 0	$ 49	$ 0
Residential | HELOC | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Residential | HELOC | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Residential | HELOC | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
Residential | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	0	0	0
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	0	0	0
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Residential | Construction | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Residential | Construction | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Residential | Construction | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 0	$ 0	$ 0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | contract	0	1	0	3
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 7	$ 0	$ 18
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Number of Contracts | contract	0	0	0	1
TDRs Modified Within the Previous Twelve Months That Have Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 3
Consumer | Rate   Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Consumer | Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	0	0	0	0
Consumer | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-Modification Amortized Cost by Type of Modification	$ 0	$ 7	$ 0	$ 18

Loans and Leases and Allowan_12

Loans and Leases and Allowance for Credit Losses - Balance and activity in the ACL by portfolio segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
ACL
ACL - loans, Beginning Balance	$ 126,866	$ 81,905	$ 137,010	$ 62,089
ACL - loans, Charge-Offs	(2,531)	(8,059)	(9,364)	(18,864)
ACL - loans, Recoveries	2,987	1,910	10,125	4,601
ACL - loans, (Release) Provision	(15,706)	27,913	(26,155)	48,963
ACL - loans, Ending Balance	111,616	103,669	111,616	103,669
ACL - unfunded commitments, Beginning Balance	8,726	6,470	10,558	3,458
ACL - unfunded commitments, (Release) Provision	2,118	5,630	286	6,771
ACL - unfunded commitments, Ending Balance	10,844	12,100	10,844	12,100
Total ACL, Beginning Balance	135,592	88,375	147,568	65,547
Total ACL, Charge-Offs	(2,531)	(8,059)	(9,364)	(18,864)
Total ACL, Recoveries	2,987	1,910	10,125	4,601
Total ACL, (Release) Provision	(13,588)	33,543	(25,869)	55,734
Total ACL, Ending Balance	122,460	115,769	122,460	115,769
Adoption of CECL
ACL
ACL - loans, Beginning Balance				6,880
ACL - unfunded commitments, Beginning Balance				1,871
Total ACL, Beginning Balance				8,751
Adjusted Balance
ACL
ACL - loans, Beginning Balance				68,969
ACL - unfunded commitments, Beginning Balance				5,329
Total ACL, Beginning Balance				74,298
Loans receivable | Commercial | Owner occupied commercial real estate
ACL
ACL - loans, Beginning Balance	19,282	11,000	20,673	11,404
ACL - loans, Charge-Offs	(1)	0	(1)	(6)
ACL - loans, Recoveries	156	466	396	1,500
ACL - loans, (Release) Provision	(2,145)	3,126	(3,776)	3,310
ACL - loans, Ending Balance	17,292	14,592	17,292	14,592
Loans receivable | Commercial | Owner occupied commercial real estate | Adoption of CECL
ACL
ACL - loans, Beginning Balance				(1,616)
Loans receivable | Commercial | Owner occupied commercial real estate | Adjusted Balance
ACL
ACL - loans, Beginning Balance				9,788
Loans receivable | Commercial | Income producing commercial real estate
ACL
ACL - loans, Beginning Balance	34,911	16,584	41,737	12,306
ACL - loans, Charge-Offs	(52)	(4,589)	(1,059)	(5,000)
ACL - loans, Recoveries	213	41	229	182
ACL - loans, (Release) Provision	(4,105)	9,663	(9,940)	14,241
ACL - loans, Ending Balance	30,967	21,699	30,967	21,699
Loans receivable | Commercial | Income producing commercial real estate | Adoption of CECL
ACL
ACL - loans, Beginning Balance				(30)
Loans receivable | Commercial | Income producing commercial real estate | Adjusted Balance
ACL
ACL - loans, Beginning Balance				12,276
Loans receivable | Commercial | Commercial & industrial
ACL
ACL - loans, Beginning Balance	21,750	10,831	22,019	5,266
ACL - loans, Charge-Offs	(857)	(254)	(3,751)	(7,815)
ACL - loans, Recoveries	797	291	6,444	667
ACL - loans, (Release) Provision	(5,276)	(2,279)	(8,298)	6,459
ACL - loans, Ending Balance	16,414	8,589	16,414	8,589
Loans receivable | Commercial | Commercial & industrial | Adoption of CECL
ACL
ACL - loans, Beginning Balance				4,012
Loans receivable | Commercial | Commercial & industrial | Adjusted Balance
ACL
ACL - loans, Beginning Balance				9,278
Loans receivable | Commercial | Construction
ACL
ACL - loans, Beginning Balance	10,572	9,556	10,952	9,668
ACL - loans, Charge-Offs	(46)	(239)	(224)	(239)
ACL - loans, Recoveries	339	117	495	258
ACL - loans, (Release) Provision	(1,685)	5,080	(2,043)	7,410
ACL - loans, Ending Balance	9,180	14,514	9,180	14,514
Loans receivable | Commercial | Construction | Adoption of CECL
ACL
ACL - loans, Beginning Balance				(2,583)
Loans receivable | Commercial | Construction | Adjusted Balance
ACL
ACL - loans, Beginning Balance				7,085
Loans receivable | Commercial | Equipment financing
ACL
ACL - loans, Beginning Balance	17,200	14,738	16,820	7,384
ACL - loans, Charge-Offs	(1,188)	(2,085)	(3,246)	(3,948)
ACL - loans, Recoveries	887	420	1,434	776
ACL - loans, (Release) Provision	1,201	7,232	3,092	10,222
ACL - loans, Ending Balance	18,100	20,305	18,100	20,305
Loans receivable | Commercial | Equipment financing | Adoption of CECL
ACL
ACL - loans, Beginning Balance				5,871
Loans receivable | Commercial | Equipment financing | Adjusted Balance
ACL
ACL - loans, Beginning Balance				13,255
Loans receivable | Residential | Residential mortgage
ACL
ACL - loans, Beginning Balance	14,580	11,063	15,341	8,081
ACL - loans, Charge-Offs	0	(50)	(215)	(334)
ACL - loans, Recoveries	194	56	317	331
ACL - loans, (Release) Provision	(3,809)	1,757	(4,478)	3,179
ACL - loans, Ending Balance	10,965	12,826	10,965	12,826
Loans receivable | Residential | Residential mortgage | Adoption of CECL
ACL
ACL - loans, Beginning Balance				1,569
Loans receivable | Residential | Residential mortgage | Adjusted Balance
ACL
ACL - loans, Beginning Balance				9,650
Loans receivable | Residential | HELOC
ACL
ACL - loans, Beginning Balance	6,880	6,887	8,417	4,575
ACL - loans, Charge-Offs	(34)	(98)	(34)	(118)
ACL - loans, Recoveries	146	196	219	299
ACL - loans, (Release) Provision	(635)	1,702	(2,245)	2,012
ACL - loans, Ending Balance	6,357	8,687	6,357	8,687
Loans receivable | Residential | HELOC | Adoption of CECL
ACL
ACL - loans, Beginning Balance				1,919
Loans receivable | Residential | HELOC | Adjusted Balance
ACL
ACL - loans, Beginning Balance				6,494
Loans receivable | Residential | Construction
ACL
ACL - loans, Beginning Balance	1,362	816	764	2,504
ACL - loans, Charge-Offs	0	(32)	(10)	(54)
ACL - loans, Recoveries	33	37	103	71
ACL - loans, (Release) Provision	523	1,176	1,061	1,247
ACL - loans, Ending Balance	1,918	1,997	1,918	1,997
Loans receivable | Residential | Construction | Adoption of CECL
ACL
ACL - loans, Beginning Balance				(1,771)
Loans receivable | Residential | Construction | Adjusted Balance
ACL
ACL - loans, Beginning Balance				733
Loans receivable | Consumer
ACL
ACL - loans, Beginning Balance	329	430	287	901
ACL - loans, Charge-Offs	(353)	(712)	(824)	(1,350)
ACL - loans, Recoveries	222	286	488	517
ACL - loans, (Release) Provision	225	456	472	883
ACL - loans, Ending Balance	$ 423	$ 460	$ 423	460
Loans receivable | Consumer | Adoption of CECL
ACL
ACL - loans, Beginning Balance				(491)
Loans receivable | Consumer | Adjusted Balance
ACL
ACL - loans, Beginning Balance				$ 410

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Fair value of derivative financial instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Notional Amount	$ 3,334,404	$ 3,529,643
Derivative Asset
Total gross derivative instruments	58,489	86,666
Less: Amounts subject to master netting agreements	(480)	(114)
Less: Cash collateral received/pledged	(5,827)	(3,200)
Net amount	52,182	83,352
Derivative Liability
Total gross derivative instruments	27,089	29,003
Less: Amounts subject to master netting agreements	(480)	(114)
Less: Cash collateral received/pledged	(20,295)	(27,092)
Net amount	6,314	1,797
Derivative assets
Derivative Asset
Total gross derivative instruments	58,489	86,666
Derivative liabilities
Derivative Liability
Total gross derivative instruments	27,089	29,003
Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Notional Amount	130,000	140,000
Designated as hedging instrument | Cash flow hedge of subordinated debt
Derivatives, Fair Value [Line Items]
Notional Amount	100,000	100,000
Designated as hedging instrument | Cash flow hedge of trust preferred securities
Derivatives, Fair Value [Line Items]
Notional Amount	20,000	20,000
Designated as hedging instrument | Fair value hedge of brokered time deposits
Derivatives, Fair Value [Line Items]
Notional Amount	10,000	20,000
Designated as hedging instrument | Derivative assets
Derivative Asset
Derivatives designated as hedging instruments	5,682	3,378
Designated as hedging instrument | Derivative assets | Cash flow hedge of subordinated debt
Derivative Asset
Cash flow hedge	5,682	3,378
Designated as hedging instrument | Derivative assets | Cash flow hedge of trust preferred securities
Derivative Asset
Cash flow hedge	0	0
Designated as hedging instrument | Derivative assets | Fair value hedge of brokered time deposits
Derivative Asset
Fair value hedge	0	0
Designated as hedging instrument | Derivative liabilities
Derivative Liability
Derivatives designated as hedging instruments	0	0
Designated as hedging instrument | Derivative liabilities | Cash flow hedge of subordinated debt
Derivative Liability
Cash flow hedge	0	0
Designated as hedging instrument | Derivative liabilities | Cash flow hedge of trust preferred securities
Derivative Liability
Cash flow hedge	0	0
Designated as hedging instrument | Derivative liabilities | Fair value hedge of brokered time deposits
Derivative Liability
Fair value hedge	0	0
Not designated as hedging instrument
Derivatives, Fair Value [Line Items]
Notional Amount	3,204,404	3,389,643
Not designated as hedging instrument | Customer derivative positions
Derivatives, Fair Value [Line Items]
Notional Amount	1,276,926	1,329,271
Not designated as hedging instrument | Dealer offsets to customer derivative positions
Derivatives, Fair Value [Line Items]
Notional Amount	1,276,926	1,329,271
Not designated as hedging instrument | Risk participations
Derivatives, Fair Value [Line Items]
Notional Amount	61,673	48,843
Not designated as hedging instrument | Mortgage banking - loan commitment
Derivatives, Fair Value [Line Items]
Notional Amount	160,535	253,243
Not designated as hedging instrument | Mortgage banking - forward sales commitment
Derivatives, Fair Value [Line Items]
Notional Amount	324,474	325,145
Not designated as hedging instrument | Bifurcated embedded derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	51,935	51,935
Not designated as hedging instrument | Dealer offsets to bifurcated embedded derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	51,935	51,935
Not designated as hedging instrument | Derivative assets
Derivative Asset
Derivatives not designated as hedging instruments	52,807	83,288
Not designated as hedging instrument | Derivative assets | Customer derivative positions
Derivative Asset
Derivatives not designated as hedging instruments	45,358	72,508
Not designated as hedging instrument | Derivative assets | Dealer offsets to customer derivative positions
Derivative Asset
Derivatives not designated as hedging instruments	451	1
Not designated as hedging instrument | Derivative assets | Risk participations
Derivative Asset
Derivatives not designated as hedging instruments	3	28
Not designated as hedging instrument | Derivative assets | Mortgage banking - loan commitment
Derivative Asset
Derivatives not designated as hedging instruments	5,191	10,751
Not designated as hedging instrument | Derivative assets | Mortgage banking - forward sales commitment
Derivative Asset
Derivatives not designated as hedging instruments	109	0
Not designated as hedging instrument | Derivative assets | Bifurcated embedded derivatives
Derivative Asset
Derivatives not designated as hedging instruments	1,695	0
Not designated as hedging instrument | Derivative assets | Dealer offsets to bifurcated embedded derivatives
Derivative Asset
Derivatives not designated as hedging instruments	0	0
Not designated as hedging instrument | Derivative liabilities
Derivative Liability
Derivatives not designated as hedging instruments	27,089	29,003
Not designated as hedging instrument | Derivative liabilities | Customer derivative positions
Derivative Liability
Derivatives not designated as hedging instruments	6,758	17
Not designated as hedging instrument | Derivative liabilities | Dealer offsets to customer derivative positions
Derivative Liability
Derivatives not designated as hedging instruments	16,094	24,614
Not designated as hedging instrument | Derivative liabilities | Risk participations
Derivative Liability
Derivatives not designated as hedging instruments	22	12
Not designated as hedging instrument | Derivative liabilities | Mortgage banking - loan commitment
Derivative Liability
Derivatives not designated as hedging instruments	0	0
Not designated as hedging instrument | Derivative liabilities | Mortgage banking - forward sales commitment
Derivative Liability
Derivatives not designated as hedging instruments	293	1,964
Not designated as hedging instrument | Derivative liabilities | Bifurcated embedded derivatives
Derivative Liability
Derivatives not designated as hedging instruments	0	1,449
Not designated as hedging instrument | Derivative liabilities | Dealer offsets to bifurcated embedded derivatives
Derivative Liability
Derivatives not designated as hedging instruments	$ 3,922	$ 947

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Narrative (Details) $ in Thousands	Jun. 30, 2021USD ($)contract
Derivative Instruments [Line Items]
Losses to be reclassified from accumulated other comprehensive income into earnings over the next twelve months | $	$ 595
Economic hedge, not designated as hedging instrument | Interest rate swaps
Derivative Instruments [Line Items]
Number of derivative contracts | contract	3

Derivatives and Hedging Activ_5

Derivatives and Hedging Activities - Effect of derivatives in hedging relationships (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments [Line Items]
Total interest expense presented in the consolidated statements of income	$ (7,433)	$ (14,301)	$ (16,911)	$ (32,242)
Fair value hedging | Interest expense
Effect of hedging relationships on interest expense:
Net income (expense) recognized	46	213	124	218
Cash flow hedging | Interest expense
Effect of hedging relationships on interest expense:
Net income (expense) recognized	(147)	(67)	(291)	(67)
Premium amortization expense excluded from assessment of hedge effectiveness	$ 118	$ 92	$ 234	$ 92

Derivatives and Hedging Activ_6

Derivatives and Hedging Activities - Carrying amount and cumulative fair value hedging adjustments on hedged liability (Details) - Fair value hedging - Interest rate swaps - Deposits - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Carrying amount of Assets (Liabilities)	$ (10,103)	$ (20,216)
Hedge Accounting Basis Adjustment	$ (112)	$ (235)

Derivatives and Hedging Activ_7

Derivatives and Hedging Activities - Gains and losses recognized in income on derivatives not designated as hedging instruments (Details) - Not designated as hedging instrument - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ (3,276)	$ 2,083	$ 2,711	$ 2,466
Customer derivatives and dealer offsets | Other noninterest income
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	162	1,168	2,059	2,592
Bifurcated embedded derivatives and dealer offsets | Other noninterest income
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(42)	(28)	417	(223)
Mortgage banking derivatives | Mortgage loan revenue
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(3,494)	929	342	100
Risk participations | Other noninterest income
Derivative Instruments [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ 98	$ 14	$ (107)	$ (3)

Assets and Liabilities Measur_3

Assets and Liabilities Measured at Fair Value - Assets and liabilities measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets:
Debt securities available-for-sale	$ 4,075,781	$ 3,224,721
Mortgage loans held for sale	98,194	105,433
U.S. Treasuries
Assets:
Debt securities available-for-sale	142,080	128,072
U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	152,624	152,972
State and political subdivisions
Assets:
Debt securities available-for-sale	289,346	274,472
Corporate bonds
Assets:
Debt securities available-for-sale	151,811	71,767
Asset-backed securities
Assets:
Debt securities available-for-sale	654,667	562,722
Recurring
Assets:
Equity securities with readily available fair values	2,557	1,687
Mortgage loans held for sale	98,194	105,433
Deferred compensation plan assets	11,008	9,584
Servicing rights for SBA/USDA loans	6,115	6,462
Residential mortgage servicing rights	21,568	16,216
Derivative financial instruments	58,489	86,666
Total assets	4,273,712	3,450,769
Liabilities:
Deferred compensation plan liability	11,031	9,590
Derivative financial instruments	27,089	29,003
Total liabilities	38,120	38,593
Recurring | U.S. Treasuries
Assets:
Debt securities available-for-sale	142,080	128,072
Recurring | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	152,624	152,972
Recurring | State and political subdivisions
Assets:
Debt securities available-for-sale	289,346	274,472
Recurring | Residential MBS
Assets:
Debt securities available-for-sale	1,977,045	1,485,585
Recurring | Commercial MBS
Assets:
Debt securities available-for-sale	708,208	549,131
Recurring | Corporate bonds
Assets:
Debt securities available-for-sale	151,811	71,767
Recurring | Asset-backed securities
Assets:
Debt securities available-for-sale	654,667	562,722
Recurring | Level 1
Assets:
Equity securities with readily available fair values	1,289	774
Mortgage loans held for sale	0	0
Deferred compensation plan assets	11,008	9,584
Servicing rights for SBA/USDA loans	0	0
Residential mortgage servicing rights	0	0
Derivative financial instruments	0	0
Total assets	154,377	138,430
Liabilities:
Deferred compensation plan liability	11,031	9,590
Derivative financial instruments	0	0
Total liabilities	11,031	9,590
Recurring | Level 1 | U.S. Treasuries
Assets:
Debt securities available-for-sale	142,080	128,072
Recurring | Level 1 | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | State and political subdivisions
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Residential MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Commercial MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Corporate bonds
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 1 | Asset-backed securities
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 2
Assets:
Equity securities with readily available fair values	1,268	913
Mortgage loans held for sale	98,194	105,433
Deferred compensation plan assets	0	0
Servicing rights for SBA/USDA loans	0	0
Residential mortgage servicing rights	0	0
Derivative financial instruments	51,600	75,887
Total assets	4,083,056	3,277,132
Liabilities:
Deferred compensation plan liability	0	0
Derivative financial instruments	23,145	26,595
Total liabilities	23,145	26,595
Recurring | Level 2 | U.S. Treasuries
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 2 | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	152,624	152,972
Recurring | Level 2 | State and political subdivisions
Assets:
Debt securities available-for-sale	289,346	274,472
Recurring | Level 2 | Residential MBS
Assets:
Debt securities available-for-sale	1,977,045	1,485,585
Recurring | Level 2 | Commercial MBS
Assets:
Debt securities available-for-sale	708,208	549,131
Recurring | Level 2 | Corporate bonds
Assets:
Debt securities available-for-sale	150,104	70,017
Recurring | Level 2 | Asset-backed securities
Assets:
Debt securities available-for-sale	654,667	562,722
Recurring | Level 3
Assets:
Equity securities with readily available fair values	0	0
Mortgage loans held for sale	0	0
Deferred compensation plan assets	0	0
Servicing rights for SBA/USDA loans	6,115	6,462
Residential mortgage servicing rights	21,568	16,216
Derivative financial instruments	6,889	10,779
Total assets	36,279	35,207
Liabilities:
Deferred compensation plan liability	0	0
Derivative financial instruments	3,944	2,408
Total liabilities	3,944	2,408
Recurring | Level 3 | U.S. Treasuries
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | U.S. Government agencies & GSEs
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | State and political subdivisions
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | Residential MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | Commercial MBS
Assets:
Debt securities available-for-sale	0	0
Recurring | Level 3 | Corporate bonds
Assets:
Debt securities available-for-sale	1,707	1,750
Recurring | Level 3 | Asset-backed securities
Assets:
Debt securities available-for-sale	$ 0	$ 0

Assets and Liabilities Measur_4

Assets and Liabilities Measured at Fair Value - Reconciliation for measurements at fair value on a recurring basis using significant unobservable inputs (Details) - Recurring - Level 3 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Assets
Assets:
Balance at beginning of period	$ 8,308	$ 7,361	$ 10,779	$ 7,238
Additions	0	7	175	7
Transfers into Level 3	0	583	0	583
Sales and settlements	0	0	0	0
Amounts included in OCI	0	0	0	0
Amounts included in earnings - fair value adjustments	(1,419)	4,156	(4,065)	4,279
Balance at end of period	6,889	12,107	6,889	12,107
SBA/USDA loan servicing rights
Assets:
Balance at beginning of period	6,226	6,290	6,462	6,794
Additions	610	303	839	398
Transfers into Level 3	0	0	0	0
Sales and settlements	(453)	(34)	(644)	(341)
Amounts included in OCI	0	0		0
Amounts included in earnings - fair value adjustments	(268)	(525)	(542)	(817)
Balance at end of period	6,115	6,034	6,115	6,034
Residential mortgage servicing rights
Assets:
Balance at beginning of period	20,728	11,059	16,216	13,565
Additions	3,792	3,217	6,993	5,332
Transfers into Level 3	0	0	0	0
Sales and settlements	(1,426)	(682)	(2,555)	(1,175)
Amounts included in OCI	0	0	0	0
Amounts included in earnings - fair value adjustments	(1,526)	(1,102)	914	(5,230)
Balance at end of period	21,568	12,492	21,568	12,492
Corporate Bonds
Assets:
Balance at beginning of period	1,750	0	1,750	998
Additions	0	1,000	0	1,000
Transfers into Level 3	0	0	0	0
Sales and settlements	0	0	0	(1,000)
Amounts included in OCI	(43)	0	(43)	2
Amounts included in earnings - fair value adjustments	0	0	0	0
Balance at end of period	1,707	1,000	1,707	1,000
Derivative Liabilities
Liabilities:
Balance at beginning of period	4,606	2,717	2,408	8,559
Additions	97	0	97	0
Transfers into Level 3	0	0	0	0
Sales and settlements	0	0	0	0
Amounts included in OCI	0	0	0	0
Amounts included in earnings - fair value adjustments	(759)	(148)	1,439	(5,990)
Balance at end of period	$ 3,944	$ 2,569	$ 3,944	$ 2,569

Assets and Liabilities Measur_5

Assets and Liabilities Measured at Fair Value - Quantitative information about Level 3 fair value measurements for fair value on recurring basis (Details) - Recurring - Level 3	Jun. 30, 2021security	Dec. 31, 2020
SBA/USDA loan servicing rights | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0	0.016
SBA/USDA loan servicing rights | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.311	0.441
SBA/USDA loan servicing rights | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.093	0.089
SBA/USDA loan servicing rights | Prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.030	0.027
SBA/USDA loan servicing rights | Prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.343	0.336
SBA/USDA loan servicing rights | Prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.179	0.178
Residential mortgage servicing rights | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.100	0.100
Residential mortgage servicing rights | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.110	0.110
Residential mortgage servicing rights | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.100	0.100
Residential mortgage servicing rights | Prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.103	0.087
Residential mortgage servicing rights | Prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.180	0.195
Residential mortgage servicing rights | Prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.137	0.177
Corporate bonds | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.067
Corporate bonds | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.069
Corporate bonds | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.068
Derivative assets - mortgage | Pull through rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	0.498	0.656
Derivative assets - mortgage | Pull through rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	1	1
Derivative assets - mortgage | Pull through rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	0.852	0.839

Assets and Liabilities Measur_6

Assets and Liabilities Measured at Fair Value - Fair Value Option (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
Mortgage Loans Held for Sale
Outstanding principal balance	$ 94,229		$ 94,229		$ 99,746
Fair value	98,194		98,194		$ 105,433
Mortgage loan gains and other related fees	$ 521	$ 1,546	$ (1,721)	$ 3,271

Assets and Liabilities Measur_7

Assets and Liabilities Measured at Fair Value - Assets and liabilities measured at fair value on nonrecurring basis (Details) - Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 3,341	$ 29,404
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 3,341	$ 29,404

Assets and Liabilities Measur_8

Assets and Liabilities Measured at Fair Value - Carrying amount and fair values for other financial instruments that are not measured at fair value on recurring basis (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets:
HTM debt securities	$ 861,488	$ 437,193
Carrying Amount
Assets:
HTM debt securities	852,404	420,361
Loans and leases, net	11,279,130	11,233,805
Liabilities:
Deposits	16,327,767	15,232,358
Long-term debt	261,919	326,956
Fair Value
Assets:
HTM debt securities	861,488	437,193
Loans and leases, net	11,263,533	11,209,717
Liabilities:
Deposits	16,327,024	15,232,274
Long-term debt	280,049	336,763
Fair Value | Level 1
Assets:
HTM debt securities	0	0
Loans and leases, net	0	0
Liabilities:
Deposits	0	0
Long-term debt	0	0
Fair Value | Level 2
Assets:
HTM debt securities	861,488	437,193
Loans and leases, net	0	0
Liabilities:
Deposits	16,327,024	15,232,274
Long-term debt	0	0
Fair Value | Level 3
Assets:
HTM debt securities	0	0
Loans and leases, net	11,263,533	11,209,717
Liabilities:
Deposits	0	0
Long-term debt	$ 280,049	$ 336,763

Assets and Liabilities Measur_9

Assets and Liabilities Measured at Fair Value - Narrative (Details)	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Maximum remaining maturity of financial instruments having no defined maturity	180 days

Common Stock (Details)

Common Stock (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	Nov. 30, 2020
Equity [Abstract]
Common stock authorized (in shares)	200,000,000		200,000,000		150,000,000	150,000,000
Repurchase program authorized amount	$ 50,000,000		$ 50,000,000				$ 50,000,000
Shares repurchased (in shares)	150,000	0	150,000	826,482
Repurchase program remaining authorization	$ 44,900,000		$ 44,900,000

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan vesting period	4 years
Plan exercisable period	10 years
Additional awards remaining available under plan (in shares)	884,343
Income tax benefit related to expense for share-based awards	$ 802	$ 1,090
Restricted stock units and performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 12,200
Recognition period for unrecognized compensation expense	2 years 3 months 18 days
Employees | Restricted stock units and performance stock units | Salaries and employee benefits expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 2,910	4,040
Directors | Restricted stock units and performance stock units | Other operating expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 235	$ 217

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted stock unit activity (Details) - Restricted Stock Units $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares
Shares
Outstanding, beginning balance (in shares) | shares	893,431
Granted (in shares) | shares	71,378
Vested (in shares) | shares	(119,680)
Cancelled (in shares) | shares	(47,231)
Outstanding, ending balance (in shares) | shares	797,898
Weighted- Average Grant- Date Fair Value
Outstanding, beginning balance (in dollars per share) | $ / shares	$ 23.75
Granted (in dollars per share) | $ / shares	30.94
Vested (in dollars per share) | $ / shares	29.19
Cancelled (in dollars per share) | $ / shares	24.96
Outstanding, ending balance (in dollars per share) | $ / shares	$ 23.51
Aggregate Intrinsic Value, Vested | $	$ 4,008
Aggregate Intrinsic Value, Outstanding | $	$ 25,541

Reclassifications Out of AOCI_2

Reclassifications Out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains, net	$ 41	$ 0	$ 41	$ 0
Investment securities interest revenue	145,809	123,605	287,351	260,152
Long-term debt interest expense	(3,813)	(3,030)	(8,070)	(5,894)
Salaries and employee benefits expense	(59,414)	(51,811)	(119,999)	(103,169)
Other expense	(4,227)	(3,045)	(7,903)	(7,067)
Total before tax	92,265	32,019	186,121	72,710
Income tax benefit	(22,005)	(6,923)	(42,155)	(15,730)
Net income	70,260	25,096	143,966	56,980
Reclassifications out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(277)	(282)	(578)	(505)
Reclassifications out of AOCI | Realized gains on AFS securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains, net	41	0	41	0
Income tax benefit	(14)	0	(14)	0
Net income	27	0	27	0
Reclassifications out of AOCI | Amortization of losses included in net income on AFS securities transferred to HTM
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Investment securities interest revenue	0	(96)	0	(179)
Income tax benefit	0	23	0	43
Net income	0	(73)	0	(136)
Reclassifications out of AOCI | Reclassifications related to derivative financial instruments accounted for as cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Long-term debt interest expense	(147)	(67)	(291)	(67)
Income tax benefit	37	17	74	17
Net income	(110)	(50)	(217)	(50)
Reclassifications out of AOCI | Reclassifications related to defined benefit pension plan activity
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(261)	(214)	(522)	(428)
Income tax benefit	67	55	134	109
Net income	(194)	(159)	(388)	(319)
Reclassifications out of AOCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits expense	(117)	(132)	(234)	(265)
Reclassifications out of AOCI | Actuarial losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense	$ (144)	$ (82)	$ (288)	$ (163)

Earnings Per Share - Computatio

Earnings Per Share - Computation 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
Computation of basic and diluted earnings per share
Net income	$ 70,260	$ 25,096	$ 143,966	$ 56,980
Dividends on preferred stock	(1,719)	0	(3,438)	0
Undistributed earnings allocated to participating securities	(432)	(183)	(894)	(426)
Net income available to common shareholders, basic	68,109	24,913	139,634	56,554
Net income available to common shareholders, diluted	$ 68,109	$ 24,913	$ 139,634	$ 56,554
Weighted average shares outstanding:
Basic (in shares)	87,289	78,920	87,306	79,130
Effect of dilutive securities:
Restricted stock units (in shares)	132	4	137	56
Diluted (in shares)	87,421	78,924	87,443	79,186
Net income per common share:
Basic (in dollars per share)	$ 0.78	$ 0.32	$ 1.60	$ 0.71
Diluted (in dollars per share)	$ 0.78	$ 0.32	$ 1.60	$ 0.71

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - shares	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)	0
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation (in shares)		154,795

Regulatory Matters (Details)

Regulatory Matters (Details) $ in Thousands	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital, Minimum	0.045
CET1 capital, Well-Capitalized	0.065
CET1 capital	0.1259	0.1231
Tier 1 capital, Minimum	0.060
Tier 1 capital, Well-Capitalized	0.080
Tier 1 capital	0.1334	0.1310
Total capital, Minimum	0.080
Total capital, Well-Capitalized	0.100
Total capital	0.1509	0.1515
Leverage ratio, Minimum	0.040
Leverage ratio, Well-Capitalized	0.050
Leverage ratio	0.0926	0.0928
CET1 capital	$ 1,604,725	$ 1,506,750
Tier 1 capital	1,701,147	1,603,172
Total capital	1,924,680	1,854,368
Risk-weighted assets	12,750,755	12,240,440
Average total assets for the leverage ratio	$ 18,369,878	$ 17,276,853
United Community Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	0.1321	0.1331
Tier 1 capital	0.1321	0.1331
Total capital	0.1403	0.1428
Leverage ratio	0.0916	0.0942
CET1 capital	$ 1,679,004	$ 1,625,292
Tier 1 capital	1,679,004	1,625,292
Total capital	1,782,537	1,743,045
Risk-weighted assets	12,705,960	12,207,940
Average total assets for the leverage ratio	$ 18,334,952	$ 17,246,878

Commitments and Contingencies -

Commitments and Contingencies - Contractual amount of off-balance sheet instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Commitments to extend credit
Financial instruments whose contract amounts represent credit risk:
Financial instruments	$ 3,259,470	$ 3,052,657
Letters of credit
Financial instruments whose contract amounts represent credit risk:
Financial instruments	$ 27,674	$ 31,748

Commitments and Contingencies_2

Commitments and Contingencies - Narrative (Details) $ in Thousands	Jun. 30, 2021USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitment for additional fund	$ 8,430

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ in Thousands	Jul. 06, 2021USD ($)shares	Jun. 30, 2021USD ($)bank_branch	Dec. 31, 2020USD ($)
Business Acquisition [Line Items]
Assets		$ 18,895,723	$ 17,794,374
Deposits		16,327,767	$ 15,232,358
FinTrust | Subsequent event
Business Acquisition [Line Items]
Total consideration	$ 22,000
Common stock issued in acquisition	4,400
Cash consideration	9,900
Contingent consideration	$ 7,700
Shares issued in acquisition (in shares) | shares	132,299
FinTrust
Business Acquisition [Line Items]
Assets under management		$ 2,090,000
Aquesta Financial Holdings, Inc
Business Acquisition [Line Items]
Number of banking branches | bank_branch		9
Assets		$ 736,000
Loans		524,000
Deposits		$ 641,000
Reliant Bancorp, Inc
Business Acquisition [Line Items]
Number of banking branches | bank_branch		25
Assets		$ 3,100,000
Loans		2,320,000
Deposits		$ 2,630,000

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 05, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Subsequent Event [Line Items]
Purchases of common stock (in shares)		150,000	0	150,000	826,482
Purchases of common stock		$ 5,101		$ 5,101	$ 20,782
Subsequent event
Subsequent Event [Line Items]
Purchases of common stock (in shares)	309,599
Purchases of common stock	$ 9,000