10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

___________________________________________________ 

FORM 10-Q

___________________________________________________

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

For the quarterly period ended March 31, 2022

or

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

For the transition period from to

Commission File Number: 1-9047

___________________________________________________

Independent Bank Corp.

(Exact name of registrant as specified in its charter)

 ___________________________________________________

MA	04-2870273
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

Office Address:	2036 Washington Street,	Hanover,	MA	02339
Mailing Address:	288 Union Street,	Rockland,	MA	02370
(Address of principal executive offices, including zip code)

(781) 878-6100

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:
Title of each Class	Trading Symbol	Name of each exchange on which registered
Common Stock, $0.01 par value per share	INDB	The Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes x    No  o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  x    No  o

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

Large Accelerated Filer	x	Accelerated Filer	☐
Non-accelerated Filer	☐	Smaller Reporting Company	☐
		Emerging Growth Company	☐

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act.) Yes ☐ No ☒

As of May 4, 2022, there were 46,778,999 shares of the issuer’s common stock outstanding, par value $0.01 per share.

Table of Contents
	PAGE
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements (unaudited)
Consolidated Balance Sheets - March 31, 2022 and December 31, 2021	5
Consolidated Statements of Income - Three months ended March 31, 2022 and 2021	7
Consolidated Statements of Comprehensive Income -Three months ended March 31, 2022 and 2021	8
Consolidated Statements of Stockholders’ Equity - Three months ended March 31, 2022 and 2021	9
Consolidated Statements of Cash Flows - Three months ended March 31, 2022 and 2021	10
Condensed Notes to Consolidated Financial Statements - March 31, 2022
Note 1 - Basis of Presentation	12
Note 2 - Recent Accounting Standards Updates	12
Note 3 - Securities	14
Note 4 - Loans, Allowance for Credit Losses, and Credit Quality	18
Note 5 - Stock Based Compensation	26
Note 6 - Derivative and Hedging Activities	28
Note 7 - Fair Value Measurements	34
Note 8 - Revenue Recognition	41
Note 9 - Comprehensive Income (Loss)	44
Note 10 - Commitments and Contingencies	45
Note 11 - Low Income Housing Project Investments	47
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	47
Table 1 - Closed Residential Real Estate Loans	59
Table 2 - Residential Mortgage Loan Sales	59
Table 3 - Mortgage Servicing Asset	60
Table 4 - Nonperforming Assets	65
Table 5 - Activity in Nonperforming Assets	65
Table 6 - Troubled Debt Restructurings	66
Table 7 - Activity in Troubled Debt Restructurings	66
Table 8 - Interest Income - Nonaccrual Loans and Troubled Debt Restructurings	66
Table 9 - Deferrals by Modification Type	67
Table 10 - Summary of Net Charge-Offs to Average Loans Outstanding	68
Table 11 - Summary of Allocation of Allowance for Credit Losses	69
Table 12 - Company and Bank’s Capital Amounts and Ratios	71
Table 13 - Summary of Results of Operations	73
Table 14 - Average Balance, Interest Earned/Paid & Average Yields Quarter-to-Date	74
Table 15 - Volume Rate Analysis	76
Table 16 - Noninterest Income	77
Table 17 - Noninterest Expense	78
Table 18 - Tax Provision and Applicable Tax Rates	79
Table 19 - Sources of Liquidity	81
Table 20 - Interest Rate Sensitivity	82

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Item 3. Quantitative and Qualitative Disclosures About Market Risk	83
Item 4. Controls and Procedures	83
PART II. OTHER INFORMATION	83
Item 1. Legal Proceedings	83
Item 1A. Risk Factors	84
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	84
Item 3. Defaults Upon Senior Securities	84
Item 4. Mine Safety Disclosures	84
Item 5. Other Information	84
Item 6. Exhibits	85
Signatures	86

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PART 1. FINANCIAL INFORMATION

Item 1. Financial Statements

INDEPENDENT BANK CORP.

CONSOLIDATED BALANCE SHEETS

(Unaudited—Dollars in thousands)

	March 31 2022		December 31 2021
Assets
Cash and due from banks	$	173,779	$	141,581
Interest-earning deposits with banks	1,666,580		2,099,103
Securities
Trading	3,956		3,720
Equity	22,611		23,173
Available for sale (amortized cost $1,646,938 and $1,583,736)	1,552,731		1,571,148
Held to maturity (fair value $1,210,938 and $1,064,133)	1,282,441		1,066,818
Total securities	2,861,739		2,664,859
Loans held for sale (at fair value)	6,144		24,679
Loans
Commercial and industrial	1,566,192		1,563,279
Commercial real estate	7,897,616		7,992,344
Commercial construction	1,153,945		1,165,457
Small business	200,405		193,189
Residential real estate	1,706,045		1,604,686
Home equity - first position	577,881		589,550
Home equity - subordinate positions	447,934		450,061
Other consumer	30,009		28,720
Total loans	13,580,027		13,587,286
Less: allowance for credit losses	(144,518)		(146,922)
Net loans	13,435,509		13,440,364
Federal Home Loan Bank stock	11,407		11,407
Bank premises and equipment, net	199,106		195,590
Goodwill	985,072		985,072
Other intangible assets	30,759		32,772
Cash surrender value of life insurance policies	291,192		289,304
Other assets	497,891		538,674
Total assets	$	20,159,178	$	20,423,405
Liabilities and Stockholders' Equity
Deposits
Noninterest-bearing demand deposits	$	5,537,156	$	5,479,503
Savings and interest checking accounts	6,247,806		6,350,016
Money market	3,579,820		3,556,375
Time certificates of deposit	1,398,610		1,531,150
Total deposits	16,763,392		16,917,044
Borrowings
Federal Home Loan Bank borrowings	25,660		25,667
Long-term borrowings	—		14,063
Junior subordinated debentures (less unamortized debt issuance costs of $34 and $35)	62,854		62,853

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Subordinated debentures (less unamortized debt issuance costs of $186 and $209)	49,814		49,791
Total borrowings	138,328		152,374
Other liabilities	292,019		335,538
Total liabilities	17,193,739		17,404,956
Commitments and contingencies	—		—
Stockholders' equity
Preferred stock, $0.01 par value, authorized: 1,000,000 shares, outstanding: none	—		—
Common stock, $0.01 par value, authorized: 75,000,000 shares, issued and outstanding: 47,377,125 shares at March 31, 2022 and 47,349,778 shares at December 31, 2021 (includes 144,733 and 135,273 shares of unvested participating restricted stock awards, respectively)	472		472
Value of shares held in rabbi trust at cost: 82,223 shares at March 31, 2022 and 82,565 shares at December 31, 2021	(3,179)		(3,146)
Deferred compensation and other retirement benefit obligations	3,179		3,146
Additional paid in capital	2,247,518		2,249,078
Retained earnings	795,651		766,716
Accumulated other comprehensive income (loss), net of tax	(78,202)		2,183
Total stockholders’ equity	2,965,439		3,018,449
Total liabilities and stockholders' equity	$	20,159,178	$	20,423,405

The accompanying condensed notes are an integral part of these unaudited consolidated financial statements.

6

INDEPENDENT BANK CORP.

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited—Dollars in thousands, except per share data)

	Three Months Ended
	March 31
	2022		2021
Interest income
Interest and fees on loans	$	129,625	$	92,383
Taxable interest and dividends on securities	10,043		6,627
Nontaxable interest and dividends on securities	1		5
Interest on loans held for sale	64		296
Interest on federal funds sold and short-term investments	886		326
Total interest and dividend income	140,619		99,637
Interest expense
Interest on deposits	2,107		2,711
Interest on borrowings	1,080		1,342
Total interest expense	3,187		4,053
Net interest income	137,432		95,584
(Release of) provision for credit losses	(2,000)		(2,500)
Net interest income after provision for credit losses	139,432		98,084
Noninterest income
Deposit account fees	5,493		3,584
Interchange and ATM fees	3,609		2,720
Investment management	8,673		8,304
Mortgage banking income	1,362		5,740
Increase in cash surrender value of life insurance policies	1,795		1,323
Gain on life insurance benefits	—		258
Loan level derivative income	604		173
Other noninterest income	4,736		3,144
Total noninterest income	26,272		25,246
Noninterest expenses
Salaries and employee benefits	48,711		39,889
Occupancy and equipment expenses	13,302		9,273
Data processing and facilities management	2,372		1,665
Merger and acquisition expense	7,100		—
Software maintenance	2,564		1,970
Amortization of intangible assets	2,001		1,413
FDIC assessment	1,805		1,050
Debit card expense	1,765		1,181
Consulting expense	1,750		2,391
Other noninterest expenses	14,130		10,850
Total noninterest expenses	95,500		69,682
Income before income taxes	70,204		53,648
Provision for income taxes	17,107		11,937
Net income	$	53,097	$	41,711
Basic earnings per share	$	1.12	$	1.26
Diluted earnings per share	$	1.12	$	1.26
Weighted average common shares (basic)	47,366,753		32,995,332
Common share equivalents	20,711		30,098
Weighted average common shares (diluted)	47,387,464		33,025,430
Cash dividends declared per common share	$	0.51	$	0.48

The accompanying condensed notes are an integral part of these unaudited consolidated financial statements.

7

INDEPENDENT BANK CORP.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited—Dollars in thousands)

	Three Months Ended
	March 31
	2022		2021
Net income	$	53,097	$	41,711
Other comprehensive income (loss), net of tax
Net change in fair value of securities available for sale	(62,556)		(7,774)
Net change in fair value of cash flow hedges	(17,950)		(6,583)
Net change in other comprehensive income for defined benefit postretirement plans	121		819
Total other comprehensive income (loss)	(80,385)		(13,538)
Total comprehensive income (loss)	$	(27,288)	$	28,173

The accompanying condensed notes are an integral part of these unaudited consolidated financial statements.

8

INDEPENDENT BANK CORP.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

Three Months Ended March 31, 2022 and 2021

(Unaudited—Dollars in thousands, except per share data)

	Common Stock Outstanding	Common Stock		Value of Shares Held in Rabbi  Trust at Cost		Deferred Compensation Obligation		Additional Paid in Capital		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Total
Balance December 31, 2021	47,349,778	$	472	$	(3,146)	$	3,146	$	2,249,078	$	766,716	$	2,183	$	3,018,449
Net income	—	—		—		—		—		53,097		—		53,097
Other comprehensive loss	—	—		—		—		—		—		(80,385)		(80,385)
Common dividend declared ($0.51 per share)	—	—		—		—		—		(24,162)		—		(24,162)
Stock based compensation	—	—		—		—		834		—		—		834
Restricted stock awards issued, net of awards surrendered	44,569	—		—		—		(1,063)		—		—		(1,063)
Shares issued under direct stock purchase plan	6,602	—		—		—		571		—		—		571
Shares repurchased under share repurchase program	(23,824)	—		—		—		(1,902)		—		—		(1,902)
Deferred compensation and other retirement benefit obligations	—	—		(33)		33		—		—		—		—
Balance March 31, 2022	47,377,125	$	472	$	(3,179)	$	3,179	$	2,247,518	$	795,651	$	(78,202)	$	2,965,439
Balance December 31, 2020	32,965,692	$	328	$	(3,066)	$	3,066	$	945,638	$	716,024	$	40,695	$	1,702,685
Net income	—	—		—		—		—		41,711		—		41,711
Other comprehensive loss	—	—		—		—		—		—		(13,538)		(13,538)
Common dividend declared ($0.48 per share)	—	—		—		—		—		(15,852)		—		(15,852)
Proceeds from exercise of stock options, net of cash paid	4,744	—		—		—		(57)		—		—		(57)
Stock based compensation	—	—		—		—		1,150		—		—		1,150
Restricted stock awards issued, net of awards surrendered	48,106	1		—		—		(1,221)		—		—		(1,220)
Shares issued under direct stock purchase plan	6,340	—		—		—		492		—		—		492
Deferred compensation and other retirement benefit obligations	—	—		(14)		14		—		—		—		—
Balance March 31, 2021	33,024,882	$	329	$	(3,080)	$	3,080	$	946,002	$	741,883	$	27,157	$	1,715,371

The accompanying condensed notes are an integral part of these unaudited consolidated financial statements.

9

INDEPENDENT BANK CORP.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited—Dollars in thousands)

	Three Months Ended
	March 31
	2022		2021
Cash flow from operating activities
Net income	$	53,097	$	41,711
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	10,119		8,228
Change in unamortized net loan costs and premiums	(3,666)		(8,594)
Accretion of acquired loans	(84)		(1,724)
Provision for credit losses	(2,000)		(2,500)
Deferred income tax expense	643		567
Net (gain) loss on equity securities	627		(316)
Net loss on bank premises and equipment	406		4
Realized gain on sale leaseback transaction	(145)		(145)
Stock based compensation	834		1,150
Increase in cash surrender value of life insurance policies	(1,795)		(1,323)
Gain on life insurance benefits	—		(258)
Operating lease payments	(9,030)		(3,077)
Change in fair value on loans held for sale	548		1,764
Net change in:
Trading assets	(236)		(431)
Loans held for sale	17,987		14,708
Other assets	46,805		70,901
Other liabilities	(38,582)		(53,201)
Total adjustments	22,431		25,753
Net cash provided by operating activities	75,528		67,464
Cash flows used in investing activities
Purchases of equity securities	(184)		(124)
Proceeds from maturities and principal repayments of securities available for sale	34,927		26,092
Purchases of securities available for sale	(98,246)		(223,986)
Proceeds from maturities and principal repayments of securities held to maturity	51,072		68,497
Purchases of securities held to maturity	(266,972)		(149,453)
Investments in low income housing projects	(6,405)		(6,632)
Purchases of life insurance policies	(93)		(40,093)
Proceeds from life insurance policies	—		576
Net decrease in loans	10,605		153,150
Purchases of bank premises and equipment	(8,335)		(2,524)
Proceeds from the sale of bank premises and equipment	—		4
Net cash used in investing activities	(283,631)		(174,493)
Cash flows provided by (used in) financing activities
Net decrease in time deposits	(131,925)		(82,569)
Net increase (decrease) in other deposits	(21,112)		682,938
Repayments of long-term debt, net of issuance costs	(14,063)		(4,688)
Net payments for exercise of stock options	—		(57)

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Restricted stock awards issued, net of awards surrendered	(1,063)		(1,220)
Proceeds from shares issued under direct stock purchase plan	571		492
Payments for shares repurchased under share repurchase program	(1,902)		—
Common dividends paid	(22,728)		(15,164)
Net cash provided by (used in) financing activities	(192,222)		579,732
Net increase (decrease) in cash and cash equivalents	(400,325)		472,703
Cash and cash equivalents at beginning of year	2,240,684		1,296,636
Cash and cash equivalents at end of period	$	1,840,359	$	1,769,339
Supplemental schedule of noncash activities
Net increase (decrease) in capital commitments relating to low income housing project investments	$	(718)	$	24,014
Right-of-use assets obtained in exchange for new lease obligations	$	1,549	$	—

The accompanying condensed notes are an integral part of these unaudited consolidated financial statements.

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CONDENSED NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1 - BASIS OF PRESENTATION

Independent Bank Corp. (the “Company”) is a state chartered, federally registered bank holding company, incorporated in 1985. The Company is the sole stockholder of Rockland Trust Company (“Rockland Trust” or the “Bank”), a Massachusetts trust company chartered in 1907.

All material intercompany balances and transactions have been eliminated in consolidation. Certain previously reported amounts have been reclassified to conform to the current year’s presentation.

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation of the financial statements, primarily consisting of normal recurring adjustments, have been included. Results for the three months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022 or any other interim period.

For further information, refer to the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (the "2021 Form 10-K").

NOTE 2 - RECENT ACCOUNTING STANDARDS UPDATES

    Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 848 "Reference Rate Reform" Update No. 2020-04. Update No. 2020-04 was issued in March 2020 to provide optional expedients and exceptions for applying GAAP to certain contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this update apply only to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued because of reference rate reform. The amendments will not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022 for which an entity has elected certain optional expedients that are retained through the end of the hedging relationship. The amendments in this update are effective for all entities as of March 12, 2020 through December 31, 2022 and do not apply to contract modifications made after December 31, 2022. FASB ASC Topic 848 "Reference Rate Reform" Update No. 2021-01 was subsequently issued in January 2021 and expanded application of the optional expedients to derivative transactions affected by the discounting transition. The Company has not yet adopted the amendments in these updates, but has established a working group to guide the Company’s transition from LIBOR and has begun efforts to transition off the LIBOR index consistent with industry timelines. The working group has identified its products that utilize LIBOR and has implemented fallback language to facilitate the transition to alternative rates. The Company is also evaluating existing platforms and systems as well as alternative indices in its preparation to offer new products tied to the alternative indices. The Company does not anticipate that the adoption of these updates will have a material impact on the Company's financial statements.

FASB ASC Topic 260 "Earnings Per Share" Update No. 2020-06. In August 2020, the FASB issued update No. 2020-06 ("ASU 2020-06"). ASU 2020-06 included amendments to ASC 260 related to the earnings per share calculation, which were designed to simplify and improve consistency of the diluted earnings per share calculation. ASU 2020-06 is effective for public entities for annual periods beginning after December 15, 2021 and interim periods therein. Accordingly, the Company adopted ASU 2020-06 effective January 1, 2022 and the adoption did not have a material impact on the Company's financial statements.

FASB ASC Topic 815 "Derivatives and Hedging" Update No. 2022-01. Update No. 2022-01 was issued in March 2022 and its amendments allow for nonprepayable financial assets to also be included in a closed portfolio hedged using the portfolio layer method. The expanded scope permits an entity to apply the same portfolio hedging method to both prepayable and nonprepayable financial assets resulting in more consistent accounting for similar hedges. All amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The Company is currently assessing the impact of the adoption of this standard on the Company's financial statements.

FASB ASC Topic 326 "Financial Instruments - Credit Losses" Update No. 2022-02. Update No. 2022-02 was issued in March 2022 and applies to public entities that have adopted ASU Topic 326. The amendments in this update eliminate the existing accounting guidance for troubled debt restructures ("TDRs") by creditors in Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors and instead requires that an entity evaluate whether a modification

12

represents a new loan or a continuation of an existing loan. The amendments also enhance disclosure requirements for certain loans refinancing and restructuring by creditors when a borrower is experiencing financial difficulty. ASU 2022-02 also requires additional disclosure of current period gross write-offs by year of origination for financing receivables to be included in the entity's vintage disclosure, as currently required under Topic 326. All amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The Company is currently assessing the impact of the adoption of this standard on the Company's financial statements.

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NOTE 3 - SECURITIES

Trading Securities

The Company had trading securities of $4.0 million and $3.7 million as of March 31, 2022 and December 31, 2021, respectively. These securities are held in a rabbi trust and will be used for future payments associated with the Company’s non-qualified 401(k) Restoration Plan and Non-qualified Deferred Compensation Plan.

Equity Securities

The Company had equity securities of $22.6 million and $23.2 million as of March 31, 2022 and December 31, 2021, respectively. These securities consist primarily of mutual funds held in a rabbi trust and will be used for future payments associated with the Company’s supplemental executive retirement plans.

The following table represents a summary of the gains and losses recognized within non-interest income and non-interest expense within the consolidated statements of income that relate to equity securities for the periods indicated:

	Three Months Ended
	March 31
	2022		2021
	Dollars in thousands
Net gains (losses) recognized during the period on equity securities	$	(627)	$	316
Less: net gains recognized during the period on equity securities sold during the period	4		29
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date	$	(631)	$	287

Available for Sale Securities

The following table summarizes the amortized cost, allowance for credit losses, and fair value of available for sale securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:

	March 31, 2022										December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	231,485	$	44	$	(15,594)	$	—	$	215,935	$	217,393	$	990	$	(2,901)	$	—	$	215,482
U.S. treasury securities	873,608		—		(51,275)		—		822,333		873,467		172		(12,191)		—		861,448
Agency mortgage-backed securities	421,751		670		(24,436)		—		397,985		364,955		4,512		(5,534)		—		363,933
Agency collateralized mortgage obligations	49,759		39		(796)		—		49,002		78,966		1,282		(571)		—		79,677
State, county, and municipal securities	192		8		—		—		200		192		11		—		—		203
Single issuer trust preferred securities issued by banks	489		—		—		—		489		489		2		—		—		491
Pooled trust preferred securities issued by banks and insurers	1,199		—		(200)		—		999		1,199		—		(199)		—		1,000
Small business administration pooled securities	68,455		48		(2,715)		—		65,788		47,075		1,839		—		—		48,914
Total available for sale securities	$	1,646,938	$	809	$	(95,016)	$	—	$	1,552,731	$	1,583,736	$	8,808	$	(21,396)	$	—	$	1,571,148

Excluded from the table above is accrued interest on available for sale securities of $3.4 million and $3.0 million as of March 31, 2022 and December 31, 2021, respectively, which is included within other assets on the consolidated balance sheets. Additionally, the Company did not record any write-offs of accrued interest income on available for sale securities during the three months ended March 31, 2022 and 2021. Furthermore, no securities held by the Company were delinquent on contractual payments nor were any securities placed on non-accrual status as of March 31, 2022 and December 31, 2021.

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When securities are sold, the adjusted cost of the specific security sold is used to compute the gain or loss on the sale. The Company had no sales of securities available for sale during the three months ended March 31, 2022 and 2021, and therefore no gains or losses were realized during the periods presented.

The following tables show the gross unrealized losses and fair value of the Company’s available for sale securities in an unrealized loss position, and for which the Company has not recorded a provision for credit losses, as of the dated indicated. These available for sale securities are aggregated by major security type and length of time that individual securities have been in a continuous unrealized loss position:

	March 31, 2022
		Less than 12 months				12 months or longer				Total
	# of  holdings	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
U.S. government agency securities	8	$	180,613	$	(13,459)	$	22,798	$	(2,135)	$	203,411	$	(15,594)
U.S. treasury securities	18	822,333		(51,275)		—		—		822,333		(51,275)
Agency mortgage-backed securities	73	242,172		(13,870)		88,670		(10,566)		330,842		(24,436)
Agency collateralized mortgage obligations	10	45,455		(796)		—		—		45,455		(796)
Pooled trust preferred securities issued by banks and insurers	1	—		—		999		(200)		999		(200)
Small business administration pooled securities	7	60,416		(2,715)		—		—		60,416		(2,715)
Total impaired available for sale securities	117	$	1,350,989	$	(82,115)	$	112,467	$	(12,901)	$	1,463,456	$	(95,016)
	December 31, 2021
		Less than 12 months				12 months or longer				Total
	# of  holdings	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
U.S. government agency securities	6	$	160,913	$	(2,901)	$	—	$	—	$	160,913	$	(2,901)
U.S. treasury securities	17	811,993		(12,191)		—		—		811,993		(12,191)
Agency mortgage-backed securities	12	214,678		(5,534)		—		—		214,678		(5,534)
Agency collateralized mortgage obligations	1	22,960		(571)		—		—		22,960		(571)
Pooled trust preferred securities issued by banks and insurers	1	—		—		1,000		(199)		1,000		(199)
Total impaired available for sale securities	37	$	1,210,544	$	(21,197)	$	1,000	$	(199)	$	1,211,544	$	(21,396)

The Company does not intend to sell these investments and has determined, based upon available evidence, that it is more likely than not that the Company will not be required to sell each security before the recovery of its amortized cost basis. In addition, management does not believe that any of the securities are impaired due to reasons of credit quality. As a result, the Company did not recognize a provision for credit losses on these investments during the three months ended March 31, 2022 and 2021. The Company made this determination by reviewing various qualitative and quantitative factors regarding each investment category, such as current market conditions, extent and nature of changes in fair value, issuer rating changes and trends, volatility of earnings, and current analysts’ evaluations.

As a result of the Company’s review of these qualitative and quantitative factors, the causes of the impairments listed in the table above by category were as follows at March 31, 2022:

•U.S. Government Agency Securities, U.S. Treasury Securities, Agency Mortgage-Backed Securities, Agency Collateralized Mortgage Obligations and Small Business Administration Pooled Securities: These portfolios have contractual terms that generally do not permit the issuer to settle the securities at a price less than the current par value of the investment. The decline in market value of these securities is attributable to changes in interest rates and not credit quality. Additionally, these securities are implicitly guaranteed by the U.S. Government or one of its agencies.

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•Pooled Trust Preferred Securities: This portfolio consists of one below investment grade security which is performing. The unrealized loss on this security is attributable to the illiquid nature of the trust preferred market in the current economic and regulatory environment. Management evaluates collateral credit and instrument structure, including current and expected deferral and default rates and timing. In addition, discount rates are determined by evaluating comparable spreads observed currently in the market for similar instruments.

Held to Maturity Securities

The following table summarizes the amortized cost, fair value and allowance for credit losses of held to maturity securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:

	March 31, 2022										December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value
	(Dollars in thousands)
U.S. government agency securities	$	32,555	$	—	$	(1,574)	$	—	$	30,981	$	32,987	$	—	$	(441)	$	—	$	32,546
U.S. treasury securities	100,576		—		(5,980)		—		94,596		102,560		6		(324)		—		102,242
Agency mortgage-backed securities	550,333		843		(29,993)		—		521,183		493,012		8,495		(4,271)		—		497,236
Agency collateralized mortgage obligations	576,964		189		(34,587)		—		542,566		415,736		3,232		(10,123)		—		408,845
Single issuer trust preferred securities issued by banks	1,500		8		—		—		1,508		1,500		8		—		—		1,508
Small business administration pooled securities	20,513		—		(409)		—		20,104		21,023		733		—		—		21,756
Total held to maturity securities	$	1,282,441	$	1,040	$	(72,543)	$	—	$	1,210,938	$	1,066,818	$	12,474	$	(15,159)	$	—	$	1,064,133

Substantially all held to maturity securities held by the Company are guaranteed by the U.S. federal government or other government sponsored agencies and have a long history of no credit losses. As a result, management has determined these securities to have a zero loss expectation and therefore the Company did not record a provision for estimated credit losses on any held to maturity securities during the three months ended March 31, 2022 and 2021. Excluded from the table above is accrued interest on held to maturity securities of $2.6 million and $2.0 million as of March 31, 2022 and December 31, 2021, respectively, which is included within other assets on the consolidated balance sheets. Additionally, the Company did not record any write-offs of accrued interest income on held to maturity securities during the three months ended March 31, 2022 and 2021. Furthermore, no securities held by the Company were delinquent on contractual payments nor were any securities placed on non-accrual status as of March 31, 2022 and December 31, 2021.

When securities are sold, the adjusted cost of the specific security sold is used to compute the gain or loss on the sale. The Company had no sales of held to maturity securities during the three months ended March 31, 2022 and 2021, and therefore no gains or losses were realized during the periods presented.

The Company monitors the credit quality of held to maturity securities through the use of credit ratings. Credit ratings are monitored by the Company on at least a quarterly basis. As of March 31, 2022, all held to maturity securities held by the Company were rated investment grade or higher.

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The actual maturities of certain available for sale or held to maturity securities may differ from the contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. A schedule of the contractual maturities of available for sale and held to maturity securities as of March 31, 2022 is presented below:

	Due in one year or less				Due after one year to five years				Due after five to ten years				Due after ten years				Total
	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	—	$	—	$	68,071	$	64,776	$	163,414	$	151,159	$	—	$	—	$	231,485	$	215,935
U.S. treasury securities	—		—		643,018		607,500		230,590		214,833		—		—		873,608		822,333
Agency mortgage-backed securities	19,824		19,844		80,449		78,736		158,349		144,812		163,129		154,593		421,751		397,985
Agency collateralized mortgage obligations	—		—		—		—		—		—		49,759		49,002		49,759		49,002
State, county, and municipal securities	—		—		192		200		—		—		—		—		192		200
Single issuer trust preferred securities issued by banks	—		—		—		—		—		—		489		489		489		489
Pooled trust preferred securities issued by banks and insurers	—		—		—		—		—		—		1,199		999		1,199		999
Small business administration pooled securities	—		—		—		—		—		—		68,455		65,788		68,455		65,788
Total available for sale securities	$	19,824	$	19,844	$	791,730	$	751,212	$	552,353	$	510,804	$	283,031	$	270,871	$	1,646,938	$	1,552,731
Held to maturity securities
U.S. government agency securities	$	—	$	—	$	32,555	$	30,981	$	—	$	—	$	—	$	—	$	32,555	$	30,981
U.S. treasury securities	—		—		49,740		46,985		50,836		47,611		—		—		100,576		94,596
Agency mortgage-backed securities	—		—		32,356		32,265		349,842		325,374		168,135		163,544		550,333		521,183
Agency collateralized mortgage obligations	—		—		—		—		34,215		32,252		542,749		510,314		576,964		542,566
Single issuer trust preferred securities issued by banks	—		—		—		—		1,500		1,508		—		—		1,500		1,508
Small business administration pooled securities	—		—		—		—		—		—		20,513		20,104		20,513		20,104
Total held to maturity securities	$	—	$	—	$	114,651	$	110,231	$	436,393	$	406,745	$	731,397	$	693,962	$	1,282,441	$	1,210,938
Total	$	19,824	$	19,844	$	906,381	$	861,443	$	988,746	$	917,549	$	1,014,428	$	964,833	$	2,929,379	$	2,763,669

Included in the table above are $26.2 million of callable securities at March 31, 2022.

The carrying value of securities pledged to secure public funds, trust deposits, and for other purposes, as required or permitted by law, was $778.7 million and $740.6 million at March 31, 2022 and December 31, 2021, respectively.

At March 31, 2022 and December 31, 2021, the Company had no investments in obligations of individual states, counties, or municipalities which exceeded 10% of consolidated stockholders’ equity.

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NOTE 4 - LOANS, ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY

Loans Held for Investment and Allowance for Credit Losses

The following table summarizes the change in allowance for credit losses by loan category, and bifurcates the amount of loans allocated to each loan category for the period indicated:

	Three Months Ended March 31, 2022
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Small Business		Residential Real Estate		Home  Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	14,402	$	83,486	$	12,316	$	3,508	$	14,484	$	17,986	$	740	$	146,922
Charge-offs	—		—		—		(48)		—		(24)		(634)		(706)
Recoveries	13		3		—		26		—		26		234		302
(Release of) provision for credit losses	(246)		947		(449)		(327)		3,904		(6,238)		409		(2,000)
Ending balance (1)	$	14,169	$	84,436	$	11,867	$	3,159	$	18,388	$	11,750	$	749	$	144,518
	Three Months Ended March 31, 2021
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Small Business		Residential Real Estate		Home  Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	21,086	$	45,009	$	5,397	$	5,095	$	14,275	$	22,060	$	470	$	113,392
Charge-offs	(3,331)		—		—		(66)		—		—		(289)		(3,686)
Recoveries	64		57		—		11		1		13		197		343
(Release of) provision for credit losses	2,388		(718)		(129)		(1,419)		(1,320)		(1,357)		55		(2,500)
Ending balance (1)	$	20,207	$	44,348	$	5,268	$	3,621	$	12,956	$	20,716	$	433	$	107,549

(1)Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.4 million and $33.4 million as of March 31, 2022 and March 31, 2021, respectively.

The balance of allowance for credit losses of $144.5 million as of March 31, 2022 represents a decrease of $2.4 million, or 1.6%, compared to December 31, 2021. The decrease in the allowance was primarily driven by a release of the provision for credit losses of $2.0 million recorded during the quarter, reflecting a stabilized credit quality environment.

For the purpose of estimating the allowance for credit losses, management segregated the loan portfolio into the portfolio segments detailed in the above tables.  Each of these loan categories possesses unique risk characteristics that are considered when determining the appropriate level of allowance for each segment.  Some of the characteristics unique to each loan category include:

Commercial Portfolio

•Commercial and Industrial: Loans in this category consist of revolving and term loan obligations extended to business and corporate enterprises for the purpose of financing working capital and/or capital investment.  Collateral generally consists of pledges of business assets including, but not limited to: accounts receivable, inventory, plant and equipment, or real estate, if applicable. Repayment sources consist of primarily, operating cash flow, and secondarily, liquidation of assets.

•Commercial Real Estate: Loans in this category consist of mortgage loans to finance investment in real property such as multi-family residential, commercial/retail, office, industrial, hotels, educational and healthcare facilities and other specific use properties.  Loans are typically written with amortizing payment structures.  Collateral values are determined based upon third party appraisals and evaluations.  Loan to value ratios at origination are governed by established policy and regulatory guidelines. Repayment sources consist of, primarily, cash flow from operating leases and rents and, secondarily, liquidation of assets.

•Commercial Construction: Loans in this category consist of short-term construction loans, revolving and nonrevolving credit lines and construction/permanent loans to finance the acquisition, development and construction or rehabilitation of

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real property.  Project types include residential land development, one-to-four family, condominium, and multi-family home construction, commercial/retail, office, industrial, hotels, educational and healthcare facilities and other specific use properties.  Loans may be written with nonamortizing or hybrid payment structures depending upon the type of project.  Collateral values are determined based upon third party appraisals and evaluations.  Loan to value ratios at origination are governed by established policy and regulatory guidelines.  Repayment sources vary depending upon the type of project and may consist of sale or lease of units, operating cash flows or liquidation of other assets.

•Small Business: Loans in this category consist of revolving, term loan and mortgage obligations extended to sole proprietors and small businesses for purposes of financing working capital and/or capital investment.  Collateral generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, or real estate if applicable.  Repayment sources consist primarily of operating cash flows and, secondarily, liquidation of assets.

For the commercial portfolio it is the Company’s policy to obtain personal guarantees for payment from individuals holding material ownership interests in the borrowing entities.

Consumer Portfolio

•Residential Real Estate: Residential mortgage loans held in the Company’s portfolio are made to borrowers who demonstrate the ability to make scheduled payments with full consideration to underwriting factors such as current and expected income, employment status, current assets, other financial resources, credit history and the value of the collateral.  Collateral consists of mortgage liens on one-to-four family residential properties.  Residential mortgage loans also include loans to construct owner-occupied one-to-four family residential properties.

•Home Equity: Home equity loans and credit lines are made to qualified individuals and are primarily secured by senior or junior mortgage liens on owner-occupied one-to-four family homes, condominiums or vacation homes. Each home equity loan has a fixed rate and is billed in equal payments comprised of principal and interest. The majority of home equity lines of credit have a variable rate and are billed in interest-only payments during the draw period. At the end of the draw period, the home equity line of credit is billed as a percentage of the then outstanding principal balance plus all accrued interest over a predetermined repayment period, as set forth in the note. Additionally, the Company has the option of renewing each line of credit for additional draw periods.  Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan to value ratios within established policy guidelines.

•Other Consumer: Other consumer loan products include personal lines of credit and amortizing loans made to qualified individuals for various purposes such as debt consolidation, personal expenses or overdraft protection.  Borrower qualifications include favorable credit history combined with supportive income and collateral requirements within established policy guidelines.  These loans may be secured or unsecured.

Credit Quality

The Company continually monitors the asset quality of the loan portfolio using all available information. Based on this information, loans demonstrating certain payment issues or other weaknesses may be categorized as adversely risk-rated, delinquent, nonperforming and/or put on nonaccrual status. Additionally, in the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower’s ability to repay the loan based on their current financial condition.

The Company reviews numerous credit quality indicators when assessing the risk in its loan portfolio. For the commercial portfolio, the Company utilizes a 10-point credit risk-rating system, which assigns a risk-grade to each loan obligation based on a number of quantitative and qualitative factors associated with a commercial or small business loan transaction. Factors considered include industry and market conditions, position within the industry, earnings trends, operating cash flow, asset/liability values, debt capacity, guarantor strength, management and controls, financial reporting, collateral, and other considerations. The risk-rating categories for the commercial portfolio are defined as follows:

•Pass: Risk-rating “1” through “6” comprises of loans ranging from ‘Substantially Risk Free’ which indicates borrowers are of unquestioned credit standing and the pinnacle of credit quality, well established companies with a very strong financial condition, and loans fully secured by cash collateral, through ‘Acceptable Risk’, which indicates borrowers may exhibit declining earnings, strained cash flow, increasing or above average leverage and/or weakening market fundamentals that indicate below average asset quality, margins and market share. Collateral coverage is protective.

•Potential Weakness: Borrowers exhibit potential credit weaknesses or downward trends deserving management’s close attention. If not checked or corrected, these trends will weaken the Company’s asset and position. While potentially weak, currently these borrowers are marginally acceptable; no loss of principal or interest is envisioned.

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•Definite Weakness Loss Unlikely: Borrowers exhibit well defined weaknesses that jeopardize the orderly liquidation of debt. Loans may be inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged, if any. Normal repayment from the borrower is in jeopardy, although no loss of principal is envisioned. However, there is a distinct possibility that a partial loss of interest and/or principal will occur if the deficiencies are not corrected. Collateral coverage may be inadequate to cover the principal obligation.

•Partial Loss Probable: Borrowers exhibit well defined weaknesses that jeopardize the orderly liquidation of debt with the added provision that the weaknesses make collection of the debt in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Serious problems exist to the point where partial loss of principal is likely.

•Definite Loss: Borrowers deemed incapable of repayment. Loans to such borrowers are considered uncollectible and of such little value that continuation as active assets of the Company is not warranted.

The Company utilizes a comprehensive, continuous strategy for evaluating and monitoring commercial credit quality. Initially, credit quality is determined at loan origination and is re-evaluated when subsequent actions, such as renewals, modifications or reviews, occur. Actively managed commercial borrowers are required to provide updated financial information at least annually which is carefully evaluated for any changes in credit quality. Larger loan relationships are subject to a full annual credit review by experienced credit professionals, while continuous portfolio monitoring techniques are employed to evaluate changes in credit quality for smaller loan relationships. Any changes in credit quality are reflected in risk-rating changes. Additionally, the Company retains an independent loan review firm to evaluate the credit quality of the commercial loan portfolio. The independent loan review process achieves significant penetration into the commercial loan portfolio and reports the results of these reviews to the Audit Committee of the Board of Directors on a quarterly basis. Commercial loan modifications granted by the Company allowing payment deferrals for qualifying borrowers in accordance with the Coronavirus Aid, Relief and Economic Security Act ("CARES Act") were assessed for potential downgrades of risk ratings.

For the Company’s consumer portfolio, the quality of the loan is best indicated by the repayment performance of an individual borrower. As a result, for this portfolio the Company utilizes a pass/default risk-rating system, based on an age analysis (i.e., days past due) associated with each consumer loan. Under this structure, consumer loans less than 90 days past due are assigned a "pass" rating, while any consumer loans 90 days or more past due are assigned a "default" rating.

The following table details the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of the dates indicated below:

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	March 31, 2022
	2022		2021		2020		2019		2018		Prior		Revolving Loans		Revolving converted to Term		Total (1)
	(Dollars in thousands)
Commercial and industrial
Pass (2)	$	138,642	$	288,516	$	159,051	$	85,497	$	105,651	$	30,082	$	741,200	$	—	$	1,548,639
Potential weakness	629		746		1,402		1,423		88		1,113		4,097		—		9,498
Definite weakness - loss unlikely	403		1,253		—		57		420		2,684		3,238		—		8,055
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	139,674	$	290,515	$	160,453	$	86,977	$	106,159	$	33,879	$	748,535	$	—	$	1,566,192
Commercial real estate
Pass	$	226,907	$	1,548,212	$	1,254,460	$	867,980	$	830,148	$	2,431,434	$	135,980	$	522	$	7,295,643
Potential weakness	10,059		51,223		92,984		43,560		83,195		210,418		13,619		—		505,058
Definite weakness - loss unlikely	145		20,031		4,081		3,237		412		69,009		—		—		96,915
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	237,111	$	1,619,466	$	1,351,525	$	914,777	$	913,755	$	2,710,861	$	149,599	$	522	$	7,897,616
Commercial construction
Pass	$	82,805	$	400,932	$	440,129	$	100,066	$	30,145	$	34,952	$	34,416	$	—	$	1,123,445
Potential weakness	—		—		3,005		—		—		12,935		—		—		15,940
Definite weakness - loss unlikely	—		14,560		—		—		—		—		—		—		14,560
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	82,805	$	415,492	$	443,134	$	100,066	$	30,145	$	47,887	$	34,416	$	—	$	1,153,945
Small business
Pass	$	14,959	$	52,037	$	35,973	$	19,540	$	12,136	$	24,449	$	37,719	$	—	$	196,813
Potential weakness	—		183		435		376		196		277		761		—		2,228
Definite weakness - loss unlikely	—		—		601		20		7		283		453		—		1,364
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total small business	$	14,959	$	52,220	$	37,009	$	19,936	$	12,339	$	25,009	$	38,933	$	—	$	200,405
Residential real estate
Pass	$	177,524	$	446,985	$	209,293	$	106,746	$	111,601	$	650,555	$	—	$	—	$	1,702,704
Default	—		—		392		—		999		1,950		—		—		3,341
Total residential real estate	$	177,524	$	446,985	$	209,685	$	106,746	$	112,600	$	652,505	$	—	$	—	$	1,706,045
Home equity
Pass	$	13,376	$	64,981	$	61,198	$	35,075	$	31,458	$	137,315	$	678,867	$	1,519	$	1,023,789
Default	—		—		—		122		—		64		1,840		—		2,026
Total home equity	$	13,376	$	64,981	$	61,198	$	35,197	$	31,458	$	137,379	$	680,707	$	1,519	$	1,025,815
Other consumer
Pass	$	142	$	2,964	$	2,469	$	1,978	$	695	$	4,669	$	17,074	$	—	$	29,991
Default	—		9		4		—		—		3		2		—		18
Total other consumer	$	142	$	2,973	$	2,473	$	1,978	$	695	$	4,672	$	17,076	$	—	$	30,009
Total	$	665,591	$	2,892,632	$	2,265,477	$	1,265,677	$	1,207,151	$	3,612,192	$	1,669,266	$	2,041	$	13,580,027

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	March 31, 2021
	2021		2020		2019		2018		2017		Prior		Revolving Loans		Revolving converted to Term		Total (1)
	(Dollars in thousands)
Commercial and industrial
Pass (2)	$	420,682	$	724,577	$	127,454	$	88,970	$	25,737	$	27,123	$	589,448	$	—	$	2,003,991
Potential weakness	3,424		14,991		2,636		2,148		4,288		3,205		12,252		—		42,944
Definite weakness - loss unlikely	17,912		663		1,116		1,327		2,768		482		6,927		—		31,195
Partial loss probable	—		—		—		—		—		143		8,398		—		8,541
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	442,018	$	740,231	$	131,206	$	92,445	$	32,793	$	30,953	$	617,025	$	—	$	2,086,671
Commercial real estate
Pass	$	214,573	$	1,043,424	$	687,959	$	432,728	$	524,194	$	966,331	$	16,196	$	—	$	3,885,405
Potential weakness	390		29,218		53,849		31,274		18,981		86,160		13,612		—		233,484
Definite weakness - loss unlikely	3,590		22,536		3,754		3,474		9,892		15,482		—		—		58,728
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	218,553	$	1,095,178	$	745,562	$	467,476	$	553,067	$	1,067,973	$	29,808	$	—	$	4,177,617
Commercial construction
Pass	$	28,323	$	239,954	$	142,076	$	28,189	$	23,313	$	6,628	$	19,934	$	—	$	488,417
Potential weakness	—		17,544		9,691		—		—		—		190		—		27,425
Definite weakness - loss unlikely	—		—		—		520		—		—		—		—		520
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	28,323	$	257,498	$	151,767	$	28,709	$	23,313	$	6,628	$	20,124	$	—	$	516,362
Small business
Pass	$	10,307	$	41,418	$	25,817	$	17,750	$	12,624	$	29,309	$	33,658	$	—	$	170,883
Potential weakness	—		—		389		204		10		202		634		—		1,439
Definite weakness - loss unlikely	—		677		51		59		17		301		758		—		1,863
Partial loss probable	—		—		—		—		—		—		26		—		26
Definite loss	—		—		—		—		—		—		—		—		—
Total small business	$	10,307	$	42,095	$	26,257	$	18,013	$	12,651	$	29,812	$	35,076	$	—	$	174,211
Residential real estate
Pass	$	80,657	$	212,891	$	126,359	$	133,150	$	130,580	$	554,848	$	—	$	—	$	1,238,485
Default	—		—		—		427		—		2,877		—		—		3,304
Total residential real estate	$	80,657	$	212,891	$	126,359	$	133,577	$	130,580	$	557,725	$	—	$	—	$	1,241,789
Home equity
Pass	$	23,583	$	77,497	$	51,398	$	46,648	$	48,132	$	140,376	$	636,881	$	1,762	$	1,026,277
Default	—		—		—		—		—		210		2,008		—		2,218
Total home equity	$	23,583	$	77,497	$	51,398	$	46,648	$	48,132	$	140,586	$	638,889	$	1,762	$	1,028,495
Other consumer
Pass	$	46	$	540	$	326	$	146	$	620	$	6,800	$	12,939	$	—	$	21,417
Default	—		—		—		—		15		111		3		—		129
Total other consumer	$	46	$	540	$	326	$	146	$	635	$	6,911	$	12,942	$	—	$	21,546

22

Total $ 803,487  $ 2,425,930  $ 1,232,875  $ 787,014  $ 801,171  $ 1,840,588  $ 1,353,864  $ 1,762  $ 9,246,691 

(1)Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

(2)Loans originated as part of the Paycheck Protection Program ("PPP") established by the CARES Act are included within commercial and industrial under the 2021 and 2020 vintage year and "pass" category as these loans are 100% guaranteed by the U.S. Government. Outstanding PPP loans totaled $99.6 million and $846.3 million as of March 31, 2022 and 2021, respectively.

    For the Company’s consumer portfolio, the quality of the loan is best indicated by the repayment performance of an individual borrower. However, the Company does supplement performance data with current Fair Isaac Corporation (“FICO”) scores and Loan to Value (“LTV”) estimates. Current FICO data is purchased and appended to all consumer loans on a regular basis. In addition, automated valuation services and broker opinions of value are used to supplement original value data for the residential real estate and home equity portfolios, periodically. The following table shows the weighted average FICO scores and the weighted average combined LTV ratios at the dates indicated below:

	March 31 2022		December 31 2021
Residential real estate portfolio
FICO score (re-scored)(1)	752		749
LTV (re-valued)(2)	54.5	%	54.4	%
Home equity portfolio
FICO score (re-scored)(1)	773		772
LTV (re-valued)(2)(3)	42.3	%	42.4	%

(1)The average FICO scores at March 31, 2022 are based upon rescores from March 2022, as available for previously originated loans, or origination score data for loans booked in March 2022.  The average FICO scores at December 31, 2021 were based upon rescores available from December 2021, as available for previously originated loans, or origination score data for loans booked in December 2021.

(2)The combined LTV ratios for March 31, 2022 are based upon updated automated valuations as of February 2022, when available, and/or the most current valuation data available.  The combined LTV ratios for December 31, 2021 were based upon updated automated valuations as of November 2021, when available, and/or the most current valuation data available as of such date.  The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained.  If no new information is available, the valuation will default to the previously obtained data or most recent appraisal.

(3)For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.

Unfunded Commitments

Management evaluates the need for a reserve on unfunded lending commitments in a manner consistent with loans held for investment. At both March 31, 2022 and December 31, 2021, the Company's estimated reserve for unfunded commitments amounted to $1.5 million.

Asset Quality

The Company’s philosophy toward managing its loan portfolios is predicated upon careful monitoring, which stresses early detection and response to delinquent and default situations. Delinquent loans are managed by a team of collection specialists and the Company seeks to make arrangements to resolve any delinquent or default situation over the shortest possible time frame.  As a general rule, loans 90 days or more past due with respect to principal or interest are classified as nonaccrual loans. The Company also may use discretion regarding other loans 90 days or more delinquent if the loan is well secured and/or in process of collection.

In response to the COVID-19 pandemic, the Company has granted loan modifications to allow deferral of payments for borrowers negatively impacted by the pandemic. The balance of loans with active deferrals as of March 31, 2022 and December 31, 2021 was $304.5 million and $383.1 million, respectively. The majority of these loans with active deferrals as of March 31, 2022 continue to be characterized as current loans. In accordance with regulatory guidance, these modifications are not considered to be troubled debt restructures ("TDRs") if they were performing as of December 31, 2019. Additionally, a majority of these modified loans are characterized as current and therefore are not impacting nonaccrual or delinquency totals as of March 31, 2022 and December 31, 2021. The Company does, however, consider all active deferrals when estimating loss reserves. As loans reach their deferral maturity date, consideration of TDR and delinquency status will resume in accordance with the Company's accounting policy.

23

The following table shows information regarding nonaccrual loans as of the dates indicated:

	Nonaccrual Balances
	March 31, 2022						December 31, 2021
	With Allowance for Credit Losses		Without Allowance for Credit Losses		Total		With Allowance for Credit Losses		Without Allowance for Credit Losses		Total
	(Dollars in thousands)
Commercial and industrial	$	3,498	$	19	$	3,517	$	3,420	$	19	$	3,439
Commercial real estate	15,835		24,635		40,470		10,870		—		10,870
Small business	20		—		20		44		—		44
Residential real estate	7,861		596		8,457		8,580		602		9,182
Home equity	3,761		—		3,761		3,781		—		3,781
Other consumer	393		—		393		504		—		504
Total nonaccrual loans (1)	$	31,368	$	25,250	$	56,618	$	27,199	$	621	$	27,820

(1)Included in these amounts were $2.0 million of nonaccruing TDRs at both March 31, 2022 and December 31, 2021, respectively.

It is the Company's policy to reverse any accrued interest when a loan is put on nonaccrual status, and, as such, the Company did not record any interest income on nonaccrual loans during the three months ended March 31, 2022 and March 31, 2021.

The following table shows information regarding foreclosed residential real estate property at the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Foreclosed residential real estate property held by the creditor	$	—	$	—
Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$	2,287	$	1,426

The following tables show the age analysis of past due financing receivables as of the dates indicated:

	March 31, 2022
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables		Amortized Cost >90 Days and  Accruing
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	4	$	276	4	$	3,399	—	$	—	8	$	3,675	$	1,562,517	$	1,566,192	$	—
Commercial real estate	10	6,530		3	7,897		2	7,009		15	21,436		7,876,180		7,897,616		—
Commercial construction	3	2,592		—	—		—	—		3	2,592		1,151,353		1,153,945		—
Small business	7	85		2	6		2	8		11	99		200,306		200,405		—
Residential real estate	9	2,890		6	1,546		73	3,341		88	7,777		1,698,268		1,706,045		—
Home equity	11	834		5	81		23	2,026		39	2,941		1,022,874		1,025,815		—
Other consumer (1)	384	541		18	157		8	18		410	716		29,293		30,009		—
Total	428	$	13,748	38	$	13,086	108	$	12,402	574	$	39,236	$	13,540,791	$	13,580,027	$	—

24

	December 31, 2021
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables		Recorded Investment >90 Days and  Accruing
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	7	$	143	2	$	252	2	$	24	11	$	419	$	1,562,860	$	1,563,279	$	—
Commercial real estate	15	32,845		—	—		4	1,339		19	34,184		7,958,160		7,992,344		—
Commercial construction	—	—		—	—		—	—		—	—		1,165,457		1,165,457		—
Small business	11	136		6	53		4	24		21	213		192,976		193,189		—
Residential real estate	12	2,709		5	714		76	3,922		93	7,345		1,597,341		1,604,686		—
Home equity	15	1,375		6	381		21	1,671		42	3,427		1,036,184		1,039,611		—
Other consumer (1)	458	719		41	277		16	112		515	1,108		27,612		28,720		—
Total	518	$	37,927	60	$	1,677	123	$	7,092	701	$	46,696	$	13,540,590	$	13,587,286	$	—

(1)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

Troubled Debt Restructurings

In the course of resolving nonperforming loans, the Bank may choose to restructure the contractual terms of certain loans. The Bank attempts to work out an alternative payment schedule with the borrower in order to avoid foreclosure actions. Exclusive of loans modified under provisions of the CARES Act, any loans that are modified are reviewed by the Bank to identify if a TDR has occurred, which is when, for economic or legal reasons related to a borrower’s financial difficulties, the Bank grants a concession to the borrower that it would not otherwise consider. Terms may be modified to fit the ability of the borrower to repay in line with its current financial status and the restructuring of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms, or a combination of the two.

The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated:

		March 31, 2022		December 31, 2021
	(Dollars in thousands)
TDRs on accrual status		$	13,288	$	14,635
TDRs on nonaccrual		1,972		1,993
Total TDRs		$	15,260	$	16,628
Additional commitments to lend to a borrower who has been a party to a TDR		$	174	$	190

The Company’s policy is to have any restructured loan which is on nonaccrual status prior to being modified remain on nonaccrual status for six months subsequent to being modified before management considers its return to accrual status. If the restructured loan is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. Additionally, loans classified as TDRs are adjusted to reflect the changes in value of the recorded investment in the loan, if any, resulting from the granting of a concession. For all residential loan modifications, the borrower must perform during a 90 day trial period before the modification is finalized.

25

There were no new TDRs during the three months ended March 31, 2022. The following table shows the TDRs which occurred during the three months ended March 31, 2021 and the change in the recorded investment subsequent to the modifications occurring:

	Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(Dollars in thousands)
Troubled debt restructurings
Commercial and industrial	1	$	14,148	$	14,148
Commercial real estate	5	3,964		3,964
Small business	1	100		100
Total (1)	7	$	18,212	$	18,212

(1)The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.

The following table shows the Company’s post-modification balance of TDRs listed by type of modification for the three months ended March 31, 2021:

	Post-Modification Balance of TDRs
	(Dollars in thousands)
Combination rate and maturity	14,148
Extended maturity	4,064
Total	$	18,212

The Company considers a loan to have defaulted when it reaches 90 days past due. During the three months ended March 31, 2022 and March 31, 2021, there were no loans modified during the prior twelve months that subsequently defaulted during the respective periods. The Company determines the amount of allowance on TDRs in accordance with CECL methodology using a discounted cash flow approach, or a fair value of collateral approach if the loan is determined to be individually evaluated.

NOTE 5 - STOCK BASED COMPENSATION

During the three months ended March 31, 2022, the Company had the following activity related to stock based compensation:

Time Vested Restricted Stock Awards

The Company made the following awards of time vested restricted stock:

Date	Shares Granted	Plan	Grant Date Fair Value Per Share		Vesting Period
2/17/2022	52,100	2005 Employee Stock Plan	$	84.70	Ratably over 5 years from grant date

Performance-Based Restricted Stock Awards

    On February 17, 2022, the Company granted 20,700 performance-based restricted stock awards, representing the maximum number of shares that may be earned under the awards, to certain executive level employees. These performance-based restricted stock awards were issued from the 2005 Employee Stock Plan and were determined to have a grant date fair value per share of $84.70. The number of shares to be vested are contingent upon the Company's attainment of certain performance criteria to be measured at the end of a three year performance period, ending December 31, 2024. The awards will vest upon the earlier of the date on which it is determined if the performance goal is achieved subsequent to the performance period or March 31, 2025.

    On March 10, 2022, the performance-based restricted stock awards that were awarded on February 21, 2019 vested at 50% of the maximum target shares awarded, or 7,450 shares.

26

27

NOTE 6 - DERIVATIVE AND HEDGING ACTIVITIES

The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally to manage the Company’s interest rate risk. Additionally, the Company enters into interest rate derivatives, foreign exchange contracts and risk participation agreements to accommodate the business requirements of its customers (“customer related positions”). The Company minimizes the market and liquidity risks of customer related positions by entering into similar offsetting positions with broker-dealers. Derivative instruments are carried at fair value in the Company's financial statements. The accounting for changes in the fair value of a derivative instrument is dependent upon whether or not it qualifies as a hedge for accounting purposes, and further, by the type of hedging relationship.

The Company does not enter into proprietary trading positions for any derivatives.

The Company is subject to over-the-counter derivative clearing requirements which require certain derivatives to be cleared through central clearing houses. Accordingly, the Company clears certain derivative transactions through the Chicago Mercantile Exchange Clearing House ("CME"). This clearing house requires the Company to post initial and variation margin to mitigate the risk of non-payment, the latter of which is received or paid daily based on the net asset or liability position of the contracts.

Interest Rate Positions

The Company may utilize various interest rate derivatives as hedging instruments against interest rate risk associated with the Company’s borrowings and loan portfolios. An interest rate derivative is an agreement whereby one party agrees to pay a floating rate of interest on a notional principal amount in exchange for receiving a fixed rate of interest on the same notional amount, for a predetermined period of time, from a second party. The amounts relating to the notional principal amount are not actually exchanged.

28

The following tables reflect the Company's derivative positions as of the dates indicated below for interest rate derivatives which qualify as cash flow hedges for accounting purposes:

March 31, 2022
				Weighted Average Rate
	Notional Amount		Average Maturity	Current Rate Received		Pay Fixed Swap Rate		Fair Value
	(in thousands)		(in years)					(in thousands)
Interest rate swaps on borrowings	$	25,000	0.38	0.47	%	1.88	%	$	(124)
				Current Rate Paid		Receive Fixed Swap Rate
Interest rate swaps on loans	550,000		2.33	0.32	%	2.16	%	(4,785)
				Current Rate Paid		Receive Fixed Swap Rate Cap - Floor
Interest rate collars on loans	350,000		1.65	0.33	%	2.72% - 2.26%		703
Total	$	925,000						$	(4,206)
December 31, 2021
				Weighted Average Rate
	Notional Amount		Average Maturity	Current Rate Received		Pay Fixed Swap Rate		Fair Value
	(in thousands)		(in years)					(in thousands)
Interest rate swaps on borrowings	$	25,000	0.62	0.16	%	1.88	%	$	(294)
				Current Rate Paid		Receive Fixed Swap Rate
Interest rate swaps on loans	550,000		2.58	0.11	%	2.16	%	11,830
				Current Rate Paid		Receive Fixed Swap Rate Cap - Floor
Interest rate collars on loans	400,000		1.66	0.11	%	2.73% - 2.20%		9,383
Total	$	975,000						$	20,919

The maximum length of time over which the Company is currently hedging its exposure to the variability in future cash flows for forecasted transactions related to the payment of variable interest on existing financial instruments is 7.0 years.

For derivative instruments that are designated and qualify as cash flow hedging instruments, the effective portion of the gains or losses is reported as a component of other comprehensive income ("OCI"), and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings.  The Company expects approximately $4.1 million (pre-tax) to be reclassified as an increase to interest income and $80,000 (pre-tax) to be reclassified as an increase to interest expense, from OCI related to the Company’s cash flow hedges in the next twelve months.  This reclassification is due to anticipated payments that will be made and/or received on the swaps based upon the forward curve as of March 31, 2022.

The Company had no fair value hedges as of March 31, 2022 or December 31, 2021.

29

Customer Related Positions

Loan level derivatives, primarily interest rate swaps, offered to commercial borrowers through the Company’s loan level derivative program do not qualify as hedges for accounting purposes. The Company believes that its exposure to commercial customer derivatives is limited because these contracts are simultaneously matched at inception with an offsetting dealer transaction. Derivatives with dealer counterparties are then either cleared through a clearinghouse or settled directly with a single counterparty. The commercial customer derivative program allows the Company to retain variable-rate commercial loans while allowing the customer to synthetically fix the loan rate by entering into a variable-to-fixed interest rate swap. The amounts relating to the notional principal amount are not actually exchanged.

Foreign exchange contracts offered to commercial borrowers through the Company’s derivative program do not qualify as hedges for accounting purposes. The Company acts as a seller and buyer of foreign exchange contracts to accommodate its customers. To mitigate the market and liquidity risk associated with these derivatives, the Company enters into similar offsetting positions. The amounts relating to the notional principal amount are exchanged.

The Company has entered into risk participation agreements with other dealer banks in commercial loan agreements. Participating banks guarantee the performance on borrower-related interest rate swap contracts. These derivatives are not designated as hedges and, therefore, changes in fair value are recognized in earnings. Under a risk participation-out agreement, a derivative asset, the Company participates out a portion of the credit risk associated with the interest rate swap position executed with the commercial borrower for a fee paid to the participating bank. Under a risk participation-in agreement, a derivative liability, the Company assumes, or participates in, a portion of the credit risk associated with the interest rate swap position with the commercial borrower for a fee received from the other bank.

30

The following table reflects the Company’s customer related derivative positions as of the dates indicated below for those derivatives not designated as hedging:

		Notional Amount Maturing
	Number of  Positions  (1)	Less than 1 year		Less than 2 years		Less than 3 years		Less than 4 years		Thereafter		Total		Fair Value
	March 31, 2022
	(Dollars in thousands)
Loan level swaps
Receive fixed, pay variable	295	$	63,981	$	108,216	$	177,574	$	244,445	$	1,023,964	$	1,618,180	$	(26,666)
Pay fixed, receive variable	295	63,981		108,216		177,574		244,445		1,023,964		1,618,180		26,666
Foreign exchange contracts
Buys foreign currency, sells U.S. currency	44	126,627		2,535		—		—		—		129,162		(5,667)
Buys U.S. currency, sells foreign currency	44	126,627		2,535		—		—		—		129,162		5,739
Risk participation agreements
Participation out	11	—		2,625		24,538		—		68,601		95,764		215
Participation in	8	29,797		28,021		—		—		21,463		79,281		(54)
		Notional Amount Maturing
	Number of  Positions  (1)	Less than 1 year		Less than 2 years		Less than 3 years		Less than 4 years		Thereafter		Total		Fair Value
	December 31, 2021
	(Dollars in thousands)
Loan level swaps
Receive fixed, pay variable	296	$	37,589	$	139,844	$	123,507	$	260,953	$	1,060,276	$	1,622,169	$	55,984
Pay fixed, receive variable	296	37,589		139,844		123,507		260,953		1,060,276		1,622,169		(55,982)
Foreign exchange contracts
Buys foreign currency, sells U.S. currency	52	149,588		8,784		—		—		—		158,372		5,734
Buys U.S. currency, sells foreign currency	52	149,588		8,784		—		—		—		158,372		(5,734)
Risk participation agreements
Participation out	11	—		2,635		7,138		24,539		68,408		102,720		279
Participation in	7	29,972		28,235		—		—		8,339		66,546		(55)

(1)The Company may enter into one dealer swap agreement which offsets multiple commercial borrower swap agreements.

31

Mortgage Derivatives

The Company enters into commitments to fund residential mortgage loans at specified rates and times in the future, with the intention that loans may be sold subsequently in the secondary market. Mortgage loan commitments are referred to as derivative loan commitments if the loan that will result from exercise of the commitment will be held for sale upon funding. These commitments are recognized at fair value on the consolidated balance sheet in other assets and other liabilities with changes in their fair values recorded within mortgage banking income. In addition, the Company has elected the fair value option to carry loans held for sale at fair value. The change in fair value of loans held for sale is recorded in current period earnings as a component of mortgage banking income in accordance with the Company's fair value election. The fair value of loans held for sale decreased by $548,000 and $1.8 million for the three month periods ended March 31, 2022 and 2021, respectively. These amounts were offset in earnings by the change in the fair value of mortgage derivatives.

Outstanding loan commitments expose the Company to the risk that the price of the loans arising from exercise of the loan commitment might change from inception of the rate lock to funding of the loan due to changes in mortgage interest rates. If interest rates increase, the value of these loan commitments decreases. Conversely, if interest rates decrease, the value of these loan commitments increases. To protect against the price risk inherent in derivative loan commitments, the Company utilizes both "mandatory delivery" and "best efforts" forward loan sale commitments to mitigate the risk of potential decreases in the values of loans that would result from the exercise of the derivative loan commitments. Mandatory delivery contracts are accounted for as derivative instruments. Included in the mandatory delivery forward commitments are To Be Announced securities ("TBAs"). Certain assumptions, including pull through rates and rate lock periods, are used in managing the existing and future hedges. The accuracy of underlying assumptions will impact the ultimate effectiveness of any hedging strategies.

With mandatory delivery contracts, the Company commits to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. If the Company fails to deliver the amount of mortgages necessary to fulfill the commitment by the specified date, it is obligated to pay a "pair-off" fee, based on then-current market prices, to the investor/counterparty to compensate the investor for the shortfall. Generally, the Company makes this type of commitment once mortgage loans have been funded and are held for sale, in order to minimize the risk of failure to deliver the requisite volume of loans to the investor and paying pair-off fees as a result. The Company also sells TBA securities to offset potential changes in the fair value of derivative loan commitments. Generally, the Company sells TBA securities by entering into derivative loan commitments for settlement in 30 to 90 days. The Company expects that mandatory delivery contracts, including TBA securities, will experience changes in fair value opposite to the changes in the fair value of derivative loan commitments.

With best effort contracts, the Company commits to deliver an individual mortgage loan of a specified principal amount and quality to an investor if the loan to the underlying borrower closes. Generally, best efforts cash contracts have no pair off risk regardless of market movement. The price the investor will pay the seller for an individual loan is specified prior to the loan being funded (e.g., on the same day the lender commits to lend funds to a potential borrower). The Company expects that these best efforts forward loan sale commitments will experience a net neutral shift in fair value with related derivative loan commitments.

The aggregate amount of net realized gains or losses on sales of such loans included within mortgage banking income was $599,000 and $8.1 million for the three month periods ended March 31, 2022 and 2021, respectively.

Balance Sheet Offsetting

The Company does not offset fair value amounts recognized for derivative instruments. The Company does net the amount recognized for the right to reclaim cash collateral against the obligation to return cash collateral arising from derivative instruments executed with the same counterparty under a master netting arrangement. Collateral legally required to be maintained at dealer banks by the Company is monitored and adjusted as necessary.

A daily settlement occurs through the CME for changes in the fair value of centrally cleared derivatives. Not all of the derivatives are required to be cleared through the daily clearing agent. As a result, the total fair values of loan level derivative assets and liabilities recognized on the Company's financial statements are not equal and offsetting.

32

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the balance sheet and the potential effect of netting arrangements on its financial position, at the dates indicated:

	Asset Derivatives (1)						Liability Derivatives (2)
	Fair Value at			Fair Value at			Fair Value at			Fair Value at
	March 31 2022			December 31 2021			March 31 2022			December 31 2021
	(Dollars in thousands)
Derivatives designated as hedges
Interest rate derivatives	$	5,271	(3)	$	21,951	(3)	$	9,477	(4)	$	1,032	(4)
Derivatives not designated as hedges
Customer Related Positions
Loan level derivatives	50,418		(3)	68,726		(3)	50,418		(4)	68,724		(4)
Foreign exchange contracts	6,007			6,147			5,935			6,147
Risk participation agreements	215			279			54			55
Mortgage Derivatives
Interest rate lock commitments	58			753			—			—
Forward sale loan commitments	27			56			—			—
Forward sale hedge commitments	248			—			—			57
Total derivatives not designated as hedges	56,973			75,961			56,407			74,983
Total	62,244			97,912			65,884			76,015
Netting Adjustments (5)	(27,893)			(5,727)			6,478			6,769
Net Derivatives on the Balance Sheet	34,351			92,185			59,406			69,246
Financial instruments (6)	10,062			22,378			10,062			22,378
Cash collateral pledged (received)	—			—			4,587			33,838
Net Derivative Amounts	$	24,289		$	69,807		$	44,757		$	13,030

(1)All asset derivatives are reflected in other assets on the balance sheet.

(2)All liability derivatives are reflected in other liabilities on the balance sheet.

(3)Approximately $878,000 and $226,000 of accrued interest receivable is included in the fair value of the interest rate and loan level asset derivatives, respectively, as of March 31, 2022, in comparison to accrued interest receivable of approximately $1.2 million and $1.5 million, respectively, as of December 31, 2021.

(4)As of March 31, 2022, approximately $216,000 of accrued interest receivable is included in the fair value of interest rate derivative liabilities and approximately $225,000 of accrued interest payable is included in the fair value of loan level liability derivatives. Accrued interest payable of approximately $5,000 and $1.5 million is included in the fair value of the interest rate and loan level derivative liabilities, respectively, as of December 31, 2021.

(5)Netting adjustments represent the amounts recorded to convert derivative assets and liabilities cleared through CME from a gross basis to a net basis, inclusive of the variation margin payments, in accordance with applicable accounting guidance. As displayed in the table above, derivatives that cleared through the CME were either in a net asset position or a net liability position as of March 31, 2022.

(6)Reflects offsetting derivative positions with the same counterparty that are not netted on the balance sheet.

33

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	Three Months Ended
	March 31
	2022		2021
	(Dollars in thousands)
Derivatives designated as hedges
Gain in OCI on derivatives (effective portion), net of tax	$	(17,950)	$	(6,583)
Gain reclassified from OCI into interest income or interest expense (effective portion)	$	4,505	$	4,380
Loss reclassified from OCI into noninterest expense (loss on termination)	$	—	$	—
Interest expense	$	—	$	—
Other expense	—		—
Total	$	—	$	—
Derivatives not designated as hedges
Changes in fair value of customer related positions
Other income	$	89	$	6
Other expense	(83)		(283)
Changes in fair value of mortgage derivatives
Mortgage banking income	(419)		(2,324)
Total	$	(413)	$	(2,601)

    The Company's derivative agreements with institutional counterparties contain various credit-risk related contingent provisions, such as requiring the Company to maintain a well-capitalized capital position. If the Company fails to meet these conditions, the counterparties could request the Company make immediate payment or demand that the Company provide immediate and ongoing full collateralization on derivative positions in net liability positions. The aggregate fair value of all derivative instruments with credit-risk related contingent features that were in a net liability position was $1.1 million and $34.8 million at March 31, 2022 and December 31, 2021, respectively. Although none of the contingency provisions have applied as of March 31, 2022 and December 31, 2021, the Company has posted collateral to offset the net liability exposure with institutional counterparties.

    By using derivatives, the Company is exposed to credit risk to the extent that counterparties to the derivative contracts do not perform as required. Should a counterparty fail to perform under the terms of a derivative contract, the Company's credit exposure on interest rate swaps is limited to the net positive fair value and accrued interest of all swaps with each counterparty. The Company seeks to minimize counterparty credit risk through credit approvals, limits, monitoring procedures, and obtaining collateral, where appropriate. Institutional counterparties must have an investment grade credit rating and be approved by the Company's Board of Directors. As such, management believes the risk of incurring credit losses on derivative contracts with institutional counterparties is remote. The Company's exposure relating to institutional counterparties was $43.8 million and $28.3 million at March 31, 2022 and December 31, 2021, respectively. The Company’s exposure relating to customer counterparties was approximately $11.8 million and $62.4 million at March 31, 2022 and December 31, 2021, respectively. Credit exposure may be reduced by the value of collateral pledged by the counterparty.

NOTE 7 - FAIR VALUE MEASUREMENTS

Fair value is a market-based measure considered from the perspective of a market participant rather than an entity-specific measure. Therefore, even when market assumptions are not readily available, the assumptions applied by the Company when determining fair value reflect those that the Company determines market participants would use to price the asset or liability at the measurement date. If there has been a significant decrease in the volume and level of activity for the asset or liability, regardless of the valuation technique(s) used, the objective of a fair value measurement remains the same. Fair value is the price that would be received if the asset were to be sold or that would be or paid if the liability were to be transferred in an orderly market transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. When determining fair value, the Company considers pricing information and other inputs that are current as of the measurement date. In periods of market dislocation, the observability of prices and other inputs may be reduced for certain instruments, or not available at all. The unavailability or reduced availability of pricing or other input information could cause an instrument to be reclassified from one level to another.

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The Fair Value Measurements and Disclosures Topic of the FASB ASC defines fair value and establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under the Fair Value Measurements and Disclosures Topic of the FASB ASC are described below:

Level 1 – Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

Level 2 – Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly.

Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Valuation Techniques

There have been no changes in the valuation techniques used during the three months ended March 31, 2022.

Securities

Trading and Equity Securities

These equity securities are valued based on market quoted prices. These securities are categorized in Level 1 as they are actively traded and no valuation adjustments have been applied.

U.S. Government Agency and U.S. Treasury Securities

Fair value is estimated using either multi-dimensional spread tables or benchmarks. The inputs used include benchmark yields, reported trades, and broker/dealer quotes. These securities are classified as Level 2.

Agency Mortgage-Backed Securities

Fair value is estimated using either a matrix or benchmarks. The inputs used include benchmark yields, reported trades, broker/dealer quotes, and issuer spreads. These securities are categorized as Level 2.

Agency Collateralized Mortgage Obligations and Small Business Administration Pooled Securities

The valuation model for these securities is volatility-driven and ratings based, and uses multi-dimensional spread tables. The inputs used include benchmark yields, reported trades, new issue data, broker dealer quotes, and collateral performance. If there is at least one significant model assumption or input that is not observable, these securities are categorized as Level 3 within the fair value hierarchy; otherwise, they are classified as Level 2.

State, County, and Municipal Securities

The fair value is estimated using a valuation matrix with inputs including bond interest rate tables, recent transactions, and yield relationships. These securities are categorized as Level 2.

Single and Pooled Issuer Trust Preferred Securities

The fair value of trust preferred securities, including pooled and single issuer preferred securities, is estimated using external pricing models, discounted cash flow methodologies or similar techniques. The inputs used in these valuations include benchmark yields, reported trades, new issue data, broker dealer quotes, and collateral performance. If there is at least one significant model assumption or input that is not observable, these securities are classified as Level 3 within the fair value hierarchy; otherwise, they are classified as Level 2.

Loans Held for Sale

The Company has elected the fair value option to account for originated closed loans intended for sale. The fair value is measured on an individual loan basis using quoted market prices and when not available, comparable market value or discounted cash flow analysis may be utilized. These assets are typically classified as Level 2.

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Derivative Instruments

Derivatives

The valuation of these instruments is 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 volatilizes. The Company incorporates credit valuation adjustments to appropriately reflect nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings. Additionally, in conjunction with fair value measurement guidance, the Company has made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. Although the Company has determined that the majority of the inputs used to value its interest rate derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its interest rate derivatives and risk participation agreements may also utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. However, as of March 31, 2022 and December 31, 2021, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Company has determined that its derivative valuations in their entirety are properly classified as Level 2.

Mortgage Derivatives

The fair value of mortgage derivatives is determined based on current market prices for similar assets in the secondary market and, therefore, classified as Level 2 within the fair value hierarchy.

Individually Assessed Collateral Dependent Loans

In accordance with the CECL standard, expected credit losses on individually assessed loans deemed to be collateral dependent are valued based upon the lower of amortized cost or fair value of the underlying collateral less costs to sell.  The inputs used in the appraisals of the collateral are not always observable, and in such cases the loans may be classified as Level 3 within the fair value hierarchy; otherwise, they are classified as Level 2.

Other Real Estate Owned and Other Foreclosed Assets

Other Real Estate Owned ("OREO") and Other Foreclosed Assets are valued at the lower of cost or fair value of the property, less estimated costs to sell. The fair values are generally estimated based upon recent appraisal values of the property less costs to sell the property. Certain inputs used in appraisals are not always observable, and therefore OREO and Other Foreclosed Assets may be classified as Level 3 within the fair value hierarchy.

Goodwill and Other Intangible Assets

Goodwill and other intangible assets are subject to impairment testing. The Company conducts an annual impairment test of goodwill in the third quarter of each year, or more frequently if necessary. Other intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. To estimate the fair value of goodwill and, if necessary, other intangible assets, the Company utilizes both a comparable analysis of relevant price multiples in recent market transactions and a discounted cash flow analysis. Both valuation models require a significant degree of management judgment. In the event the fair value as determined by the valuation model is less than the carrying value, the intangibles may be impaired. If the impairment testing resulted in impairment, the Company would classify the impaired goodwill and other intangible assets subjected to nonrecurring fair value adjustments as Level 3.

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Assets and liabilities measured at fair value on a recurring and nonrecurring basis were as follows as of the dates indicated:

			Fair Value Measurements at Reporting Date Using
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2022
	(Dollars in thousands)
Recurring fair value measurements
Assets
Trading securities	$	3,956	$	3,956	$	—	$	—
Equity securities	22,611		22,611		—		—
Securities available for sale
U.S. government agency securities	215,935		—		215,935		—
U.S. treasury securities	822,333		—		822,333		—
Agency mortgage-backed securities	397,985		—		397,985		—
Agency collateralized mortgage obligations	49,002		—		49,002		—
State, county, and municipal securities	200		—		200		—
Single issuer trust preferred securities issued by banks and insurers	489		—		489		—
Pooled trust preferred securities issued by banks and insurers	999		—		999		—
Small business administration pooled securities	65,788		—		65,788		—
Loans held for sale	6,144		—		6,144		—
Derivative instruments	62,244		—		62,244		—
Liabilities
Derivative instruments	65,884		—		65,884		—
Total recurring fair value measurements	$	1,581,802	$	26,567	$	1,555,235	$	—
Nonrecurring fair value measurements
Assets
Individually assessed collateral dependent loans (1)	$	25,231	$	—	$	—	$	25,231
Total nonrecurring fair value measurements	$	25,231	$	—	$	—	$	25,231

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			Fair Value Measurements at Reporting Date Using
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	December 31, 2021
	(Dollars in thousands)
Recurring fair value measurements
Assets
Trading securities	$	3,720	$	3,720	$	—	$	—
Equity securities	23,173		23,173		—		—
Securities available for sale
U.S. government agency securities	215,482		—		215,482		—
U.S. treasury securities	861,448		—		861,448		—
Agency mortgage-backed securities	363,933		—		363,933		—
Agency collateralized mortgage obligations	79,677		—		79,677		—
State, county, and municipal securities	203		—		203		—
Single issuer trust preferred securities issued by banks and insurers	491		—		491		—
Pooled trust preferred securities issued by banks and insurers	1,000		—		1,000		—
Small business administration pooled securities	48,914		—		48,914		—
Loans held for sale	24,679		—		24,679		—
Derivative instruments	97,912		—		97,912		—
Liabilities
Derivative instruments	76,015		—		76,015		—
Total recurring fair value measurements	$	1,644,617	$	26,893	$	1,617,724	$	—
Nonrecurring fair value measurements
Assets
Individually assessed collateral dependent loans (1)	$	1,174	$	—	$	—	$	1,174
Total nonrecurring fair value measurements	$	1,174	$	—	$	—	$	1,174

(1) The carrying value of individually assessed collateral dependent loans is based on the lower of amortized cost or fair value of the underlying collateral less costs to sell. The fair value of the underlying collateral is generally determined through independent appraisals, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

38

The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the dates indicated:

					Fair Value Measurements at Reporting Date Using
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2022
	(Dollars in thousands)
Financial assets
Securities held to maturity (a)
U.S. government agency securities	$	32,555	$	30,981	$	—	$	30,981	$	—
U.S. treasury securities	100,576		94,596		—		94,596		—
Agency mortgage-backed securities	550,333		521,183		—		521,183		—
Agency collateralized mortgage obligations	576,964		542,566		—		542,566		—
Single issuer trust preferred securities issued by banks	1,500		1,508		—		1,508		—
Small business administration pooled securities	20,513		20,104		—		20,104		—
Loans, net of allowance for credit losses (b)	13,410,278		13,301,406		—		—		13,301,406
Federal Home Loan Bank stock (c)	11,407		11,407		—		11,407		—
Cash surrender value of life insurance policies (d)	291,192		291,192		—		291,192		—
Financial liabilities
Deposit liabilities, other than time deposits (e)	$	15,364,782	$	15,364,782	$	—	$	15,364,782	$	—
Time certificates of deposits (f)	1,398,610		1,384,450		—		1,384,450		—
Federal Home Loan Bank borrowings (f)	25,660		25,626		—		25,626		—
Junior subordinated debentures (g)	62,854		63,654		—		63,654		—
Subordinated debentures (f)	49,814		43,754		—		—		43,754

39

					Fair Value Measurements at Reporting Date Using
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	December 31, 2021
	(Dollars in thousands)
Financial assets
Securities held to maturity (a)
U.S. government agency securities	$	32,987	$	32,546	$	—	$	32,546	$	—
U.S. treasury securities	102,560		102,242		—		102,242		—
Agency mortgage-backed securities	493,012		497,236		—		497,236		—
Agency collateralized mortgage obligations	415,736		408,845		—		408,845		—
Single issuer trust preferred securities issued by banks	1,500		1,508		—		1,508		—
Small business administration pooled securities	21,023		21,756		—		21,756		—
Loans, net of allowance for credit losses (b)	13,439,190		13,389,515		—		—		13,389,515
Federal Home Loan Bank stock (c)	11,407		11,407		—		11,407		—
Cash surrender value of life insurance policies (d)	289,304		289,304		—		289,304		—
Financial liabilities
Deposit liabilities, other than time deposits (e)	$	15,385,894	$	15,385,894	$	—	$	15,385,894	$	—
Time certificates of deposits (f)	1,531,150		1,529,857		—		1,529,857		—
Federal Home Loan Bank borrowings (f)	25,667		25,663		—		25,663		—
Long-term borrowings (f)	14,063		13,989		—		13,989		—
Junior subordinated debentures (g)	62,853		67,019		—		67,019		—
Subordinated debentures (f)	49,791		45,532		—		—		45,532

(a)The fair values presented are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments and/or discounted cash flow analysis.

(b)Fair value of loans is measured using the exit price valuation method, determined primarily by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities or cash flows, while incorporating liquidity and credit assumptions. Additionally, this amount excludes individually assessed collateral dependent loans, which are deemed to be marked to fair value on a nonrecurring basis.

(c)Federal Home Loan Bank stock has no quoted market value and is carried at cost; therefore the carrying amount approximates fair value.

(d)Cash surrender value of life insurance policies is recorded at its cash surrender value (or the amount that can be realized upon surrender of the policy), therefore, carrying amount approximates fair value.

(e)Fair value of demand deposits, savings and interest checking accounts and money market deposits is the amount payable on demand at the reporting date.

(f)Fair value was determined by discounting anticipated future cash payments using rates currently available for instruments with similar remaining maturities.

(g)Fair value was determined based upon market prices of securities with similar terms and maturities.

This summary excludes certain financial assets and liabilities for which the carrying value approximates fair value. For financial assets, these may include cash and due from banks, federal funds sold and short-term investments. For financial liabilities, these may include federal funds purchased. These instruments would all be considered to be classified as Level 1 within the fair value hierarchy. Also excluded from the summary are financial instruments measured at fair value on a recurring and nonrecurring basis, as previously described.

The Company considers its current use of financial instruments to be the highest and best use of the instruments.

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NOTE 8 - REVENUE RECOGNITION

A portion of the Company's noninterest income is derived from contracts with customers, and as such, the revenue recognized depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company considers the terms of the contract and all relevant facts and circumstances when applying this guidance. To ensure its alignment with this core principle, the Company measures revenue and the timing of recognition by applying the following five steps:

1.Identify the contract(s) with customers

2.Identify the performance obligations

3.Determine the transaction price

4.Allocate the transaction price to the performance obligations

5.Recognize revenue when (or as) the entity satisfies a performance obligation

The Company has disaggregated its revenue from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. The following table presents the revenue streams that the Company has disaggregated as of the periods indicated:

	Three Months Ended
	March 31 2022		March 31 2021
	(Dollars in thousands)
Deposit account fees (inclusive of cash management fees)	$	5,493	$	3,584
Interchange fees	2,472		1,903
ATM fees	841		625
Investment management - wealth management and advisory services	7,904		7,402
Investment management - retail investments and insurance revenue	769		902
Merchant processing income	378		320
Credit card income	372		236
Other noninterest income	1,396		1,125
Total noninterest income in-scope of ASC 606	19,625		16,097
Total noninterest income out-of-scope of ASC 606	6,647		9,149
Total noninterest income	$	26,272	$	25,246

In each of the revenue streams identified above, there were no significant judgments made in determining or allocating the transaction price, as the consideration and service requirements are generally explicitly identified in the associated contracts. Additional information related to each of the revenue streams is further noted below.

Deposit Account Fees

The Company offers various deposit account products to its customers governed by specific deposit agreements applicable to either personal customers or business customers. These agreements identify the general conditions and obligations of both parties, and include standard information regarding deposit account related fees.

Deposit account services include providing access to deposit accounts as well as access to the various deposit transactional services of the Company. These transactional services are primarily those that are identified in the standard fee schedule, and include, but are not limited to, services such as overdraft protection, wire transfer, and check collection. Revenue is recognized in conjunction with the various services being provided. For example, the Company may assess monthly fixed service fees associated with the customer having access to a deposit account, which can vary depending on the account type and daily account balance. In addition, the Company may also assess separate fixed fees associated with and at the time specific transactions are entered into by the customer. As such, the Company considers its performance obligations to be met concurrently with providing the account access or completing the requested deposit transaction.

41

Cash Management

Cash management services are a subset of the deposit account fees revenue stream. These services primarily include ACH transaction processing, positive pay and remote deposit services. These services are also governed by separate agreements entered into with the customer. The fee arrangement for these services is structured to assess fees under one of two scenarios, either a per transaction fee arrangement or an earnings credit analysis arrangement. Under the per transaction fee arrangement, fixed fees are assessed concurrently with customers executing the transactions, and as such, the Company considers its performance obligations to be met concurrently with completing the requested transaction. Under the earnings credit analysis arrangement, the Company provides a monthly earnings credit to the customer that is negotiated and determined based on various factors. The credit is then available to absorb the per transaction fees that are assessed on the customer's deposit account activity for the month. Any amount of the transactional fees in excess of the earnings credit is recognized as revenue in that month.

Interchange Fees

The Company earns interchange revenue from its issuance of credit and debit cards granted through its membership in various card payment networks. The Company provides credit cards and debit cards to its customers which are authorized and settled through these payment networks, and in exchange, the Company earns revenue as determined by each payment network's interchange program. The revenue is recognized concurrently with the settlement of card transactions within each network.

ATM Fees

The Company deploys automated teller machines (ATMs) as part of its overall branch network. Certain transactions performed at the ATMs require customers to acknowledge and pay a fee for the requested service. Certain ATM fees are disclosed in the deposit account agreement fee schedules, whereas those assessed to non-Rockland Trust deposit holders are solely determined during the transaction at the machine.

The ATM fee is a fixed dollar per transaction amount, and as such, is recognized concurrently with the overall daily processing and settlement of the ATM activity.

Investment Management - Wealth Management and Advisory Services

The Company offers investment management and trust services to individuals, institutions, small businesses and charitable institutions. Each investment management product is governed by its own contract along with a separate identifiable fee schedule unique to that product. The Company also offers additional services, such as estate settlement, financial planning, tax services and other special services quoted at the client's request.

The asset management and/or custody fees are based upon a percentage of the monthly valuation of the principal assets in the customer's account, whereas fees for additional or special services are fixed in nature and are charged as services are rendered. As the fees are dependent on assets under management, which are susceptible to market factors outside of the Company's control, this variable consideration is constrained and therefore no revenue is estimated at contract initiation. As such, all revenue is recognized in correlation to the monthly management fee determinations or as transactional services are provided. Due to the fact that payments are primarily made subsequent to the valuation period, the Company records a receivable for revenue earned but not received. The following table provides the amount of investment management revenue earned but not received as of the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Receivables, included in other assets	$	5,310	$	5,385

Investment Management - Retail Investments and Insurance Revenue

The Company offers the sale of mutual fund shares, unit investment trust shares, general securities, fixed and variable annuities and life insurance products through registered representatives who are both employed by the Company and licensed and contracted with various broker general agents to offer these products to the Company’s customer base. As such, the Company performs these services as an agent and earns a fixed commission on the sales of these products and services. To a lesser degree, production bonus commissions can also be earned based upon the Company meeting certain volume thresholds.

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In general, the Company recognizes commission revenue at the point of sale, and for certain insurance products, may also earn and recognize annual residual commissions commensurate with annual premiums being paid.

Merchant Processing Income

The Company refers customers to third party merchant processing partners in exchange for commission and fee income. The income earned is comprised of multiple components, including a fixed referral fee per each referred customer, a rebate amount determined primarily as a percentage of net revenue earned by the third party from services provided to each referred customer, and overall production bonus commissions if certain new account production thresholds are met. Merchant processing income is recognized in conjunction with either completing the referral to earn the fixed fee amount or as the merchant activity is processed to derive the Company's rebate and/or production bonus amounts.

Credit Card Income

The Company provides consumer and business credit card solutions to its customers by soliciting new accounts on behalf of a third party credit card provider in exchange for a fee. The income earned is comprised of new account incentive payments as well as a percentage of interchange income earned by the third party provider offering the consumer and business purpose revolving credit accounts. The credit card income is recognized in conjunction with the establishment of each new credit card member or as the interchange is earned by the third party in connection with net purchase transactions made by the credit card member.

Other Noninterest Income

The Company earns various types of other noninterest income that fall within the scope of the new revenue recognition rules, and have been aggregated into one general revenue stream in the table noted above. This amount includes, but is not limited to, the following types of revenue with customers:

Safe Deposit Rent

    The Company rents out the use of safe deposit boxes to its customers, which can be accessed when the bank is open for business. The safe deposit box rental fee is paid upfront and is recognized as revenue ratably over the annual term of the contract.

1031 Exchange Fee Revenue

    The Company provides like-kind exchange services pursuant to Section 1031 of the Internal Revenue Code. Fee income is recognized in conjunction with completing the exchange transactions.

Foreign Currency

    The Company earns fee income associated with various transactions related to foreign currency product offerings, including foreign currency bank notes and drafts and foreign currency wires. The majority of this income is derived from commissions earned related to customers executing the above mentioned foreign currency transactions through arrangements with third party correspondents.

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NOTE 9 - OTHER COMPREHENSIVE INCOME (LOSS)

The following tables present a reconciliation of the changes in the components of other comprehensive income (loss) for the periods indicated, including the amount of income tax (expense) benefit allocated to each component of other comprehensive income (loss):

	Three Months Ended March 31, 2022
	Pre-Tax Amount		Tax (Expense) Benefit		After Tax Amount
	(Dollars in thousands)
Change in fair value of securities available for sale	$	(81,619)	$	19,063	$	(62,556)
Less: net security losses reclassified into other noninterest expense	—		—		—
Net change in fair value of securities available for sale	(81,619)		19,063		(62,556)
Change in fair value of cash flow hedges	(20,480)		5,768		(14,712)
Less: net cash flow hedge gains reclassified into interest income or interest expense	4,505		(1,267)		3,238
Net change in fair value of cash flow hedges	(24,985)		7,035		(17,950)
Amortization of net actuarial losses	159		(45)		114
Amortization of net prior service costs	10		(3)		7
Net change in other comprehensive income for defined benefit postretirement plans (1)	169		(48)		121
Total other comprehensive loss	$	(106,435)	$	26,050	$	(80,385)

	Three Months Ended March 31, 2021
	Pre-Tax Amount		Tax (Expense) Benefit		After Tax Amount
	(Dollars in thousands)
Change in fair value of securities available for sale	$	(10,361)	$	2,587	$	(7,774)
Less: net security losses reclassified into other noninterest expense	—		—		—
Net change in fair value of securities available for sale	(10,361)		2,587		(7,774)
Change in fair value of cash flow hedges	(4,779)		1,344		(3,435)
Less: net cash flow hedge gains reclassified into interest income or interest expense	4,380		(1,232)		3,148
Net change in fair value of cash flow hedges	(9,159)		2,576		(6,583)
Net unamortized gain related to defined benefit pension and other postretirement adjustments arising during the period	653		(184)		469
Amortization of net actuarial losses	442		(124)		318
Amortization of net prior service costs	44		(12)		32
Net change in other comprehensive income for defined benefit postretirement plans (1)	1,139		(320)		819
Total other comprehensive loss	$	(18,381)	$	4,843	$	(13,538)

(1)The amortization of prior service costs is included in the computation of net periodic pension cost as disclosed in Note 14 "Employee Benefit Plans" within the Notes to the Consolidated Financial Statements included in Item 8 of the Company's 2021 Form 10-K.

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Information on the Company’s accumulated other comprehensive income (loss), net of tax, is comprised of the following components as of the dates indicated:

	Unrealized Gain (Loss) on Securities		Unrealized Gain (Loss) on Cash Flow Hedge		Defined Benefit Postretirement Plans		Accumulated Other Comprehensive Income (Loss)
	(Dollars in thousands)
	2022
Beginning balance: January 1, 2022	$	(9,667)	$	14,137	$	(2,287)	$	2,183
Net change in other comprehensive income (loss)	(62,556)		(17,950)		121		(80,385)
Ending balance: March 31, 2022	$	(72,223)	$	(3,813)	$	(2,166)	$	(78,202)
	2021
Beginning balance: January 1, 2021	$	13,255	$	33,276	$	(5,836)	$	40,695
Net change in other comprehensive income (loss)	(7,774)		(6,583)		819		(13,538)
Ending balance: March 31, 2021	$	5,481	$	26,693	$	(5,017)	$	27,157

NOTE 10 - COMMITMENTS AND CONTINGENCIES

Financial Instruments with Off-Balance Sheet Risk

    In the normal course of business, the Company enters into various transactions to meet the financing needs of its customers, which, in accordance with GAAP, are not included in its consolidated balance sheets. These transactions include commitments to extend credit and standby letters of credit, and loan exposures with recourse, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. The Company minimizes its exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures.

    The Company enters into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of these commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding.

The Company has certain loan exposures for which there is recourse. These loan relationships could require the Company to repurchase or cover certain losses per agreements for certain loans that are either sold or referred to third parties.

    Standby letters of credit are written conditional commitments issued to guarantee the performance of a customer to a third party. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount of the commitment. If the commitment were funded, the Company would be entitled to seek recovery from the customer. The Company’s policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

    The fees collected in connection with the issuance of standby letters of credit are representative of the fair value of the Company's obligation undertaken in issuing the guarantee. In accordance with applicable accounting standards related to guarantees, fees collected in connection with the issuance of standby letters of credit are deferred. The fees are then recognized in income proportionately over the life of the standby letter of credit agreement. The deferred standby letter of credit fees represent the fair value of the Company's potential obligations under the standby letter of credit guarantees.

    The following table summarizes the above financial instruments at the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Commitments to extend credit	$	4,480,447	$	4,535,895
Standby letters of credit	24,416		24,412
Deferred standby letter of credit fees	171		124
Loan exposures sold with recourse	186,426		202,717

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Lease Commitments

The Company leases office space, space for ATM locations, and certain branch locations under noncancellable operating leases. Several of these leases contain renewal options to extend lease terms for a period of 1 to 20 years. During the three months ended March 31, 2022, the Company recognized approximately $4.4 million in costs associated with several terminated leased locations acquired from Meridian that were subsequently exited. These costs are reflected within merger and acquisition expense in the Consolidated Statement of Income.

There has been no significant change in the future minimum lease payments payable by the Company since December 31, 2021. See the Company's 2021 Form 10-K for information regarding leases and other commitments.

Other Contingencies

At March 31, 2022, the Bank was involved in pending lawsuits that arose in the ordinary course of business. Management has reviewed these pending lawsuits with legal counsel and has taken into consideration the view of counsel as to their outcome. In the opinion of management, the final disposition of pending lawsuits is not expected to have a material adverse effect on the Company’s financial position or results of operations.

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NOTE 11 - LOW INCOME HOUSING PROJECT INVESTMENTS

The Company has invested in low income housing projects that generate Low Income Housing Tax Credits (“LIHTC”) which provide the Company with tax credits and operating loss tax benefits over a period of approximately 15 years. None of the original investment is expected to be repaid.

The following table presents certain information related to the Company's investments in low income housing projects as of the dates indicated:

	March 31 2022			December 31 2021
	(Dollars in thousands)
Original investment value	$	178,763		$	179,481
Current recorded investment	131,034			135,497
Unfunded liability obligation	66,213			73,336
Tax credits and benefits	18,838		(1)	14,198
Amortization of investments	15,249		(1)	11,892
Net income tax benefit	3,589		(1)	2,306

(1)Amounts shown represent the estimated full year impact for the year ended December 31, 2022.

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

The following discussion should be read in conjunction with the consolidated financial statements, notes and tables included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021, filed with the Securities and Exchange Commission (the "2021 Form 10-K").

Cautionary Statement Regarding Forward-Looking Statements

    This Quarterly Report on Form 10-Q (this "Report"), in Management's Discussion and Analysis of Financial Condition and Results of Operations and elsewhere, contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements are not historical facts and include expressions about management’s confidence and strategies and management’s expectations about new and existing programs and products, acquisitions, relationships, opportunities, taxation, technology, market conditions and economic expectations. These statements may be identified by forward-looking terminology such as “should,” “could,” “will,” “may,” “expect,” “believe,” “forecast,” “view,” “opportunity,” “allow,” “continues,” “reflects,” “typically,” “usually,” “anticipate,” “intend,” or similar statements or variations of such terms. Such forward-looking statements involve certain risks and uncertainties and our actual results may differ materially from such forward-looking statements. Factors that may cause actual results to differ materially from those contemplated by such forward-looking statements, in addition to those risk factors listed under the “Risk Factors” section of the 2021 Form 10-K, include but are not limited to:

•further weakening in the United States economy in general and the regional and local economies within the New England region and the Company’s market area, including any future weakening caused by the COVID-19 pandemic and any uncertainty regarding the length and extent of economic contraction as a result of the pandemic;

•the potential effects of inflationary pressures, labor market shortages and supply chain issues;

•instability or volatility in financial markets and unfavorable general economic or business conditions, globally, nationally or regionally, caused by geopolitical concerns, including as a result of the conflict between Russia and Ukraine, could have an adverse effect on our business or results of operations;

•unanticipated loan delinquencies, loss of collateral, decreased service revenues, and other potential negative effects on our business caused by severe weather, pandemics or other external events;

•adverse changes or volatility in the local real estate market;

•adverse changes in asset quality and any unanticipated credit deterioration in our loan portfolio including those related to one or more large commercial relationships;

•acquisitions may not produce results at levels or within time frames originally anticipated and may result in unforeseen integration issues or impairment of goodwill and/or other intangibles;

•additional regulatory oversight and related compliance costs;

•changes in trade, monetary and fiscal policies and laws, including interest rate policies of the Board of Governors of the Federal Reserve System;

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•higher than expected tax expense, resulting from failure to comply with general tax laws and changes in tax laws;

•changes in market interest rates for interest earning assets and/or interest bearing liabilities and changes related to the phase-out of LIBOR;

•increased competition in the Company’s market areas;

•adverse weather, changes in climate, natural disasters, geopolitical concerns, including those arising from the conflict between Russia and Ukraine, the emergence of widespread health emergencies or pandemics, including the magnitude and duration of the COVID-19 pandemic, other public health crises or man-made events could negatively affect our local economies or disrupt our operations, which would have an adverse effect on our business or results of operations;

•a deterioration in the conditions of the securities markets;

•a deterioration of the credit rating for U.S. long-term sovereign debt;

•inability to adapt to changes in information technology, including changes to industry accepted delivery models driven by a migration to the internet as a means of service delivery;

•electronic fraudulent activity within the financial services industry, especially in the commercial banking sector;

•adverse changes in consumer spending and savings habits;

•the effect of laws and regulations regarding the financial services industry;

•changes in laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) generally applicable to the Company’s business;

•the Company's potential judgments, claims, damages, penalties, fines and reputational damage resulting from pending or future litigation and regulatory and government actions, including as a result of our participation in and execution of government programs related to the COVID-19 pandemic;

•changes in accounting policies, practices and standards, as may be adopted by the regulatory agencies as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board, and other accounting standard setters including, but not limited to, changes to how the Company accounts for credit losses;

•cyber security attacks or intrusions that could adversely impact our businesses; and

•other unexpected material adverse changes in our operations or earnings.

Further, the foregoing factors may be exacerbated by the ultimate impact of the COVID-19 pandemic, which remains unknown at this time due to factors and future developments that are uncertain, unpredictable and, in many cases, beyond the Company's control, including the scope, duration and extent of the pandemic and any further resurgences, the efficacy, availability and public acceptance of vaccines, boosters or other treatments, actions taken by governmental authorities in response to the pandemic and the direct and indirect impact of these actions and the pandemic generally on the Company’s employees, customers, business and third-parties with which the Company conducts business.

    Except as required by law, the Company disclaims any intent or obligation to update publicly any such forward-looking statements, whether in response to new information, future events or otherwise. Any public statements or disclosures by the Company following this Report which modify or impact any of the forward-looking statements contained in this Report will be deemed to modify or supersede such statements in this Report.

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Selected Quarterly Financial Data

The selected consolidated financial and other data of the Company set forth below does not purport to be complete and should be read in conjunction with, and is qualified in its entirety by, the more detailed information, including the Consolidated Financial Statements and related notes, appearing elsewhere in this Report.

				Three Months Ended
	March 31 2022			December 31 2021			September 30 2021			June 30 2021			March 31 2021
	(Dollars in thousands, except per share data)
Financial condition data
Securities	$	2,861,739		$	2,664,859		$	2,318,757		$	1,682,751		$	1,431,430
Loans	13,580,027			13,587,286			8,808,013			8,938,988			9,246,691
Allowance for credit losses	(144,518)			(146,922)			(92,246)			(102,357)			(107,549)
Goodwill and other intangible assets	1,015,831			1,017,844			525,261			526,576			527,894
Total assets	20,159,178			20,423,405			14,533,311			14,194,207			13,773,914
Total deposits	16,763,392			16,917,044			12,260,140			11,986,971			11,593,524
Total borrowings	138,328			152,374			157,045			171,713			176,387
Stockholders’ equity	2,965,439			3,018,449			1,755,954			1,741,622			1,715,371
Nonperforming loans	56,618			27,820			45,810			47,818			59,201
Nonperforming assets	56,618			27,820			45,810			47,818			59,201
Income statement
Interest income	$	140,619		$	125,921		$	93,016		$	96,702		$	99,637
Interest expense	3,187			3,391			2,925			3,348			4,053
Net interest income	137,432			122,530			90,091			93,354			95,584
Provision for credit losses	(2,000)			35,705			(10,000)			(5,000)			(2,500)
Noninterest income	26,272			29,180			26,457			24,967			25,246
Noninterest expenses	95,500			117,126			72,419			73,302			69,682
Net income	53,097			1,702			40,007			37,572			41,711
Per share data
Net income—basic	$	1.12		$	0.04		$	1.21		$	1.14		$	1.26
Net income—diluted	1.12			0.04			1.21			1.14			1.26
Cash dividends declared	0.51			0.48			0.48			0.48			0.48
Book value per share	62.59			63.75			53.14			52.72			51.94
Tangible book value per share (1)	41.15			42.25			37.24			36.78			35.96
Performance ratios
Return on average assets	1.06		%	0.04		%	1.11		%	1.08		%	1.26		%
Return on average common equity	7.16		%	0.28		%	9.04		%	8.70		%	9.87		%
Net interest margin (on a fully tax equivalent basis)	3.09		%	3.05		%	2.78		%	2.99		%	3.25		%
Dividend payout ratio	42.80		%	931.90		%	39.64		%	42.19		%	36.35		%
Asset Quality Ratios
Nonperforming loans as a percent of gross loans	0.42		%	0.20		%	0.52		%	0.53		%	0.64		%
Nonperforming assets as a percent of total assets	0.28		%	0.14		%	0.32		%	0.34		%	0.43		%
Allowance for credit losses as a percent of total loans	1.06		%	1.08		%	1.05		%	1.15		%	1.16		%
Allowance for credit losses as a percent of nonperforming loans	255.25		%	528.12		%	201.37		%	214.06		%	181.67		%
Capital ratios

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Equity to assets	14.71	%	14.78	%	12.08	%	12.27	%	12.45	%
Tangible equity to tangible assets (1)	10.18	%	10.31	%	8.79	%	8.89	%	8.96	%
Tier 1 leverage capital ratio	10.62	%	12.03	%	9.36	%	9.41	%	9.63	%
Common equity tier 1 capital ratio	14.45	%	14.30	%	13.53	%	13.31	%	13.16	%
Tier 1 risk-based capital ratio	14.45	%	14.30	%	14.21	%	13.98	%	13.85	%
Total risk-based capital ratio	16.18	%	16.04	%	15.78	%	15.67	%	15.61	%

(1)     Represents a non-GAAP measure. For reconciliation to GAAP book value per share, see Item 2 "Management's Discussion and Analysis of Financial Condition and Results of Operations - Executive Level Overview - Non-GAAP Measures" below.

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Executive Level Overview

    Management evaluates the Company's operating results and financial condition using measures that include net income, earnings per share, return on assets and equity, return on tangible common equity, net interest margin, tangible book value per share, asset quality indicators, and many others. These metrics are used by management to make key decisions regarding the Company's balance sheet, liquidity, interest rate sensitivity, and capital resources and assist with identifying opportunities for improving the Company's financial position or operating results. The Company is focused on organic growth, but will also consider acquisition opportunities that are expected to provide a satisfactory financial return, including the recent acquisition of Meridian Bancorp, Inc. ("Meridian") and its subsidiary, East Boston Savings Bank ("EBSB"), which closed in the fourth quarter of 2021.

First Quarter 2022 Results

    Net income for the first quarter of 2022 was $53.1 million, or $1.12 on a diluted earnings per share basis, as compared to $41.7 million, or $1.26 on a diluted earnings per share basis, for the prior year first quarter, representing an increase of 27.3% and decrease of 11.1%, respectively. The first quarter of 2022 results reflect merger-related costs of $7.1 million, pre-tax, associated with the Meridian acquisition while no such costs were incurred during the same prior year quarter. Excluding the merger and acquisition costs incurred during the first quarter of 2022, operating net income was $58.2 million, or $1.23 per diluted share. See "Non-GAAP Measures" below for a reconciliation of non-GAAP measures.

First quarter 2022 results reflected the following key drivers:

•3.3% annualized net loan growth, when excluding PPP loans;

•Modest cash deployment into the securities portfolio;

•Increase in non-performing assets, yet minimal credit losses resulting in a $2 million release of credit reserves for the quarter;

•Solid fee income results;

•Overall expenses in line with EBSB merger related cost save expectations

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Interest-Earning Assets

    The results depicted in the following table reflect the trend of the Company's interest-earning assets over the past five quarters. Management’s asset strategy typically emphasizes loan growth, however, the mix of interest earning assets has experienced volatility over the last five quarters due to the unique operating environment, as well as the Company's acquisition of Meridian during the fourth quarter of 2021. The following table summarizes the Company's interest-earning assets as of the periods indicated.

    Management strives to be disciplined about loan pricing and considers interest rate sensitivity when generating loan assets. In addition, management takes a disciplined approach to credit underwriting, seeking to avoid undue credit risk and credit losses.

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Funding and Net Interest Margin

    The Company's overall sources of funding reflect strong business and retail deposit growth with a management emphasis on core deposit growth to fund loans. The following chart shows the sources of funding and the percentage of core deposits to total deposits for the trailing five quarters:

    The following table shows the net interest margin and cost of deposits trends for the trailing five quarters:

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Noninterest Income

    Noninterest income is primarily comprised of deposit account fees, interchange and ATM fees, investment management fees and mortgage banking income. The following chart shows the components of noninterest income over the past five quarters:

Expense Control

    Management seeks to take a balanced approach to noninterest expense control by monitoring ongoing operating expenses while making needed capital expenditures and prudently investing in growth initiatives. The Company’s primary expenses arise from Rockland Trust’s employee salaries and benefits, as well as expenses associated with buildings and equipment.

The following chart depicts the Company's efficiency ratio on a GAAP basis (calculated by dividing noninterest expense by the sum of noninterest income and net interest income), as well as the Company's efficiency ratio on a non-GAAP operating basis, if applicable (calculated by dividing noninterest expense, excluding certain noncore items, by the sum of noninterest income, excluding certain noncore items, and net interest income), over the past five quarters:

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*See "Non-GAAP Measures" below for a reconciliation to GAAP financial measures.

Capital

    The Company's approach with respect to revenue and expense is designed to promote long-term earnings growth, which in turn contributes to capital growth. Strong earnings retention has contributed to capital growth, both on an absolute level and per share basis. The following chart shows the Company's book value and tangible book value per share over the past five quarters (see "Non-GAAP Measures" below for a reconciliation to GAAP financial measures):

*See "Non-GAAP Measures" below for a reconciliation to GAAP financial measures.

    The Company declared a quarterly cash dividend of $0.51 per share for the first quarter of 2022, representing an increase of 6.3% from the 2021 quarterly dividend rate of $0.48 per share.

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Non-GAAP Measures

    When management assesses the Company’s financial performance for purposes of making day-to-day and strategic decisions, it does so based upon the performance of its core banking business, which is primarily derived from the combination of net interest income and noninterest or fee income, reduced by operating expenses, the provision for credit losses, and the impact of income taxes and other noncore items shown in the table that follows. There are items that impact the Company's results that management believes are unrelated to its core banking business such as gains or losses on the sales of securities, merger and acquisition expenses, provision for credit losses on acquired portfolios, loss on extinguishment of debt, impairment, and other items, such as one-time adjustments as a result of changes in laws and regulations. Management, therefore, excludes items management considers to be noncore when computing the Company’s non-GAAP operating earnings and operating EPS, noninterest income on an operating basis and efficiency ratio on an operating basis. Management believes excluding these items facilitates greater visibility into the Company’s core banking business and underlying trends that may, to some extent, be obscured by inclusion of such items.

Management also supplements its evaluation of financial performance with an analysis of tangible book value per share (which is computed by dividing stockholders' equity less goodwill and identifiable intangible assets, or tangible common equity, by common shares outstanding) and with the Company's tangible common equity ratio (which is computed by dividing tangible common equity by tangible assets) which are non-GAAP measures. The Company has included information on these tangible ratios because management believes that investors may find it useful to have access to the same analytical tools used by management to assess performance and identify trends.  The Company has recognized goodwill and other intangible assets in conjunction with merger and acquisition activities.  Excluding the impact of goodwill and other intangibles in measuring asset and capital values for the ratios provided, along with other bank standard capital ratios, facilitates comparison of the capital adequacy of the Company to other companies in the financial services industry.

These non-GAAP measures should not be viewed as a substitute for financial results determined in accordance with GAAP. An item which management deems to be noncore and excludes when computing these non-GAAP measures can be of substantial importance to the Company’s results for any particular period. The Company’s non-GAAP performance measures are not necessarily comparable to similarly named non-GAAP performance measures which may be presented by other companies.

    The following tables summarize adjustments for noncore items for the periods indicated below and reconcile non-GAAP measures:

	Three Months Ended March 31
	Net Income				Diluted Earnings Per Share
	2022		2021		2022		2021
	(Dollars in thousands, except per share data)
Net income available to common shareholders (GAAP)	$	53,097	$	41,711	$	1.12	$	1.26
Non-GAAP adjustments
Noninterest expense components
Add: merger and acquisition expenses	7,100		—		0.15		—
Noncore increases to income before taxes	7,100		—		0.15		—
Net tax benefit associated with noncore items (1)	(1,995)		—		(0.04)		—
Total tax impact	(1,995)		—		(0.04)		—
Noncore increases to net income	5,105		—		0.11		—
Operating net income (Non-GAAP)	$	58,202	$	41,711	$	1.23	$	1.26

(1)The net tax benefit associated with noncore items is determined by assessing whether each noncore item is included or excluded from net taxable income and applying the Company's combined marginal tax rate to only those items included in net taxable income.

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	Three Months Ended
	March 31 2022			December 31 2021			September 30 2021			June 30 2021			March 31 2021
	(Dollars in thousands)
Net interest income (GAAP)	$	137,432		$	122,530		$	90,091		$	93,354		$	95,584		(a)
Noninterest income (GAAP)	$	26,272		$	29,180		$	26,457		$	24,967		$	25,246		(b)
Noninterest expense (GAAP)	$	95,500		$	117,126		$	72,419		$	73,302		$	69,682		(c)
Less:
Merger and acquisition expense	7,100			37,166			1,943			1,731			—
Noninterest expense on an operating basis (Non-GAAP)	$	88,400		$	79,960		$	70,476		$	71,571		$	69,682		(d)
Total revenue (GAAP)	$	163,704		$	151,710		$	116,548		$	118,321		$	120,830		(a+b)
Ratios
Noninterest income as a % of revenue (GAAP based)	16.05		%	19.23		%	22.70		%	21.10		%	20.89		%	(b/(a+b))
Efficiency ratio (GAAP based)	58.34		%	77.20		%	62.14		%	61.95		%	57.67		%	(c/(a+b))
Efficiency ratio on an operating basis (Non-GAAP)	54.00		%	52.71		%	60.47		%	60.49		%	57.67		%	(d/(a+b))

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    The following table summarizes the calculation of the Company's tangible common equity to tangible assets ratio and tangible book value per share:

	March 31 2022			December 31 2021			September 30 2021			June 30 2021			March 31 2021
	(Dollars in thousands, except per share data)
Tangible common equity
Stockholders' equity (GAAP)	$	2,965,439		$	3,018,449		$	1,755,954		$	1,741,622		$	1,715,371		(a)
Less: Goodwill and other intangibles	1,015,831			1,017,844			525,261			526,576			527,895
Tangible common equity (Non-GAAP)	1,949,608			2,000,605			1,230,693			1,215,046			1,187,476			(b)
Tangible assets
Assets (GAAP)	20,159,178			20,423,405			14,533,311			14,194,207			13,773,914			(c)
Less: Goodwill and other intangibles	1,015,831			1,017,844			525,261			526,576			527,895
Tangible assets (Non-GAAP)	$	19,143,347		$	19,405,561		$	14,008,050		$	13,667,631		$	13,246,019		(d)
Common shares	47,377,125			47,349,778			33,043,812			33,037,859			33,024,882			(e)
Common equity to assets ratio (GAAP)	14.71		%	14.78		%	12.08		%	12.27		%	12.45		%	(a/c)
Tangible common equity to tangible assets ratio (Non-GAAP)	10.18		%	10.31		%	8.79		%	8.89		%	8.96		%	(b/d)
Book value per share (GAAP)	$	62.59		$	63.75		$	53.14		$	52.72		$	51.94		(a/e)
Tangible book value per share (Non-GAAP)	$	41.15		$	42.25		$	37.24		$	36.78		$	35.96		(b/e)

Critical Accounting Policies

Critical accounting policies are defined as those that are reflective of significant judgments and uncertainties, and could potentially result in materially different results under different assumptions and conditions. The Company believes that the most critical accounting policies are those which the Company’s financial condition depends upon, and which involve the most complex or subjective decisions or assessments.

There have been no material changes in critical accounting policies during the first three months of 2022. Refer to "Critical Accounting Policies and Estimates" in Item 7. "Management's Discussion and Analysis of Financial Condition and Results of Operations" in the Company's 2021 Form 10-K for a complete listing of critical accounting policies.

FINANCIAL POSITION

Securities Portfolio The Company’s securities portfolio consists of trading securities, equity securities, securities available for sale, and securities which management intends to hold until maturity. Securities increased by $196.9 million, or 7.4%, at March 31, 2022 as compared to December 31, 2021, primarily reflecting $365.2 million of purchases which were partially offset by unrealized losses of $81.6 million related to the available for sale portfolio, as well as paydowns, calls, and maturities. The ratio of securities to total assets was 14.2% and 13.0% at March 31, 2022 and December 31, 2021, respectively. The Company estimates expected credit losses for its available for sale and held to maturity securities in accordance with the current expected credit loss ("CECL") methodology. Further details regarding the Company's measurement of expected credit losses on securities can be found in Note 3 “Securities” within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report.

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    Residential Mortgage Loan Sales The Company’s primary loan sale activity arises from the sale of government sponsored enterprise eligible residential mortgage loans. The Company originates residential loans with the intention of selling them in the secondary market or holding them in the Company's residential real estate portfolio. When a loan is sold, the Company enters into agreements that contain representations and warranties about the characteristics of the loans sold and their origination. The Company may be required to either repurchase mortgage loans or to indemnify the purchaser from losses if representations and warranties are breached. The Company incurred no material losses related to residential mortgage repurchases during the three months ended March 31, 2022 and 2021, respectively.

    The following table shows the total residential real estate loans that were closed and whether the amounts were held in the portfolio or sold/held for sale in the secondary market during the periods indicated:

Table 1 - Closed Residential Real Estate Loans

	Three Months Ended March 31
	2022		2021
	(Dollars in thousands)
Held in portfolio	$	180,525	$	81,921
Sold or held for sale in the secondary market	37,245		270,161
Total closed loans	$	217,770	$	352,082

    The table below reflects additional information related to the loans which were sold during the periods indicated:

Table 2 - Residential Mortgage Loan Sales

	Three Months Ended March 31
	2022		2021
	(Dollars in thousands)
Sold with servicing rights released	$	53,864	$	281,139
Sold with servicing rights retained (1)	420		1,430
Total loans sold	$	54,284	$	282,569

(1)All loans sold with servicing rights retained during the three months ended March 31, 2022 and March 31, 2021 were sold without recourse.

    When a loan is sold, the Company may decide to also sell the servicing of sold loans for a servicing release premium, simultaneously with the sale of the loan, or the Company may opt to sell the loan and retain the servicing. In the event of a sale with servicing rights retained, a mortgage servicing asset is established, which represents the then current estimated fair value based on market prices for comparable mortgage servicing contracts, when available, or alternatively is based on a valuation model that calculates the present value of estimated future net servicing income. The valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as the cost to service, the discount rate, an inflation rate, ancillary income, prepayment speeds and default rates and losses. Servicing rights are recorded in other assets in the Consolidated Balance Sheets, are amortized in proportion to and over the period of estimated net servicing income, and are assessed for impairment based on fair value at each reporting date. Impairment is determined by stratifying the rights based on predominant characteristics, such as interest rate, loan type and investor type. Impairment is recognized through a valuation allowance, to the extent that fair value is less than the capitalized amount. If the Company later determines that all or a portion of the impairment no longer exists, a reduction of the allowance may be recorded as an increase to income. The principal balance of loans serviced by the Bank on behalf of investors was $361.7 million, $382.6 million and $401.2 million at March 31, 2022, December 31, 2021, and March 31, 2021, respectively.

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    The following table shows the adjusted cost of the servicing rights associated with these loans and the changes for the periods indicated:

Table 3 - Mortgage Servicing Asset

	Three Months Ended March 31
	2022		2021
	(Dollars in thousands)
Balance at beginning of period	$	2,627	$	2,365
Additions	4		13
Amortization	(194)		(243)
Change in valuation allowance	368		406
Balance at end of period	$	2,805	$	2,541

See Note 6, “Derivative and Hedging Activities” within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report for more information on mortgage activity and mortgage related derivatives.

Loan Portfolio Total loans at March 31, 2022 decreased by $7.3 million, or 0.05%, when compared to December 31, 2021. Excluding $116.6 million of net paydowns associated with the PPP, the loan portfolio increased by $109.4 million compared to the prior quarter, or 3.3% on an annualized basis. Organic loan growth was primarily driven by line utilization increases within the commercial and industrial portfolio as well as a healthy increase in the residential real estate portfolio as a higher portion of new closings were retained on balance sheet. Partially offsetting these growth drivers were ongoing reductions in the acquired Meridian portfolio which led to a decrease in commercial real estate balances, while continued low home equity utilization rates and attrition continue to negate strong home equity closing volumes.

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    The Company's commercial loan portfolio is comprised primarily of commercial and industrial loans as well as commercial real estate loans. Management considers the Company’s commercial and industrial portfolio to be well-diversified with loans to various types of industries. The Company's previous participation in the PPP resulted in significant loan fundings within the commercial and industrial category, which have now declined to $99.6 million or 6.4% of the total commercial and industrial category at March 31, 2022, primarily as a result of the ongoing forgiveness process, and are reflected within the various sectors below. During the three months ended March 31, 2022, the Company amortized into income $3.5 million in PPP fee revenue related to loans forgiven under the program. The following pie chart shows the diversification of the commercial and industrial portfolio as of March 31, 2022:

	(Dollars in thousands)
Average loan size (excluding floor plan tranches)	$	323
Largest individual commercial and industrial loan outstanding	$	24,048
Commercial and industrial nonperforming loans/commercial and industrial loans	0.22		%

The Company’s commercial real estate loan portfolio, inclusive of commercial construction, is the Company’s largest loan type concentration. The Company believes that this portfolio is also well-diversified with loans secured by a variety of property types, such as owner-occupied and nonowner-occupied commercial, retail, office, industrial, warehouse, and other special purpose properties, such as hotels, motels, nursing homes, restaurants, churches, recreational facilities, marinas, and golf courses. Commercial real estate also includes loans secured by certain residential-related property types, including multi-family apartment buildings, residential development tracts and condominiums. The following pie chart shows the diversification of the commercial real estate loan portfolio as of March 31, 2022:

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	(Dollars in thousands)
Average loan size	$	1,574
Largest individual commercial real estate mortgage outstanding	$	64,527
Commercial real estate nonperforming loans/commercial real estate loans	0.45		%
Owner occupied commercial real estate loans/commercial real estate loans	11.5		%

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    The Company's consumer portfolio primarily consists of both fixed-rate and adjustable-rate residential real estate loans as well as residential construction lending related to single-home residential development within the Company's market area. The Company also provides home equity loans and lines of credit that may be made as a fixed-rate term loan or under a variable rate revolving line of credit secured by a first or junior mortgage on the borrower's residence or second home. Additionally, the Company makes loans for a wide variety of other personal needs. Other consumer loans primarily consist of installment loans and overdraft protections. The residential real estate, home equity and other consumer portfolios totaled $2.8 billion at March 31, 2022, as noted below:

Asset Quality  The Company continually monitors the asset quality of the loan portfolio using all available information. Based on this assessment, loans demonstrating certain payment issues or other weaknesses may be categorized as delinquent, nonperforming and/or put on nonaccrual status. In the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower’s ability to repay the loan based on their current financial condition. If a restructured loan meets certain criteria, it may be categorized as a troubled debt restructuring ("TDR"). In addition, the Company has offered need-based payment relief options for commercial and small business loans, residential mortgages, and home equity loans and lines of credit in response to the COVID-19 pandemic. In accordance with the Coronavirus Aid, Relief and Economic Security Act ("CARES Act"), these modifications are not accounted for as TDRs or reflected as delinquent or non-accrual loans if the borrower was in compliance with the loan terms as of December 31, 2019.

Delinquency    The Company’s philosophy toward managing its loan portfolios is predicated upon careful monitoring, which stresses early detection and response to delinquent and default situations.  The Company seeks to make arrangements to resolve any delinquent or default situation over the shortest possible time frame.  Generally, the Company requires that a delinquency notice be mailed to a borrower upon expiration of a grace period (typically no longer than 15 days beyond the due date).  Reminder notices may be sent and telephone calls may be made prior to the expiration of the grace period. If the delinquent status is not resolved within a reasonable time frame following the mailing of a delinquency notice, the Bank’s personnel charged with managing its loan portfolios contacts the borrower to ascertain the reasons for delinquency and the prospects for payment.  Any subsequent actions taken to resolve the delinquency will depend upon the nature of the loan and the length of time that the loan has been delinquent. The borrower’s needs are considered as much as reasonably possible without jeopardizing the Bank’s position. A late charge is usually assessed on loans upon expiration of the grace period.

Nonaccrual Loans    As a general rule, loans 90 days or more past due with respect to principal or interest are classified as nonaccrual loans. However, certain loans that are 90 days or more past due may be kept on an accruing status if the loans are well secured and in the process of collection. Income accruals are suspended on all nonaccrual loans and all previously accrued and uncollected interest is reversed against current income. A loan remains on nonaccrual status until it becomes current with

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respect to principal and interest (and in certain instances remains current for up to six months), the loan is liquidated, or when the loan is determined to be uncollectible and is charged-off against the allowance for credit losses.

Troubled Debt Restructurings     In the course of resolving problem loans, the Company may choose to restructure the contractual terms of certain loans. The Company attempts to work out an alternative payment schedule with the borrower in order to avoid or cure a default. Loans that are modified are reviewed by the Company to identify if a TDR has occurred, which is when, for economic or legal reasons related to a borrower’s financial difficulties, the Bank grants a concession to the borrower that it would not otherwise consider. Terms may be modified to fit the ability of the borrower to repay in line with its current financial status and the restructuring of the loan may include adjustments to interest rates, extensions of maturity, consumer loans where the borrower's obligations have been effectively discharged through Chapter 7 Bankruptcy and the borrower has not reaffirmed the debt to the Bank, and other actions intended to minimize economic loss and avoid foreclosure or repossession of collateral. If such efforts by the Bank do not result in satisfactory performance, the loan is referred to legal counsel, at which time foreclosure proceedings are initiated. At any time prior to a sale of the property at foreclosure, the Bank may terminate foreclosure proceedings if the borrower is able to work out a satisfactory payment plan.

    It is the Company’s policy to have any restructured loans which are on nonaccrual status prior to being modified remain on nonaccrual status for six months, subsequent to being modified, before management considers their return to accrual status. If the restructured loan is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. Loans that are considered TDRs are classified as performing, unless they are on nonaccrual status or are delinquent for 90 days or more. Loans classified as TDRs remain classified as such for the life of the loan, except in limited circumstances, when it may be determined that the borrower is performing under modified terms and the restructuring agreement specified an interest rate greater than or equal to an acceptable market rate for a comparable new loan at the time of the restructuring.

    Purchased Credit Deteriorated Loans    Purchased Credit Deteriorated ("PCD") loans are acquired loans which have shown a more-than-insignificant deterioration in credit quality since origination. PCD loans are recorded at amortized cost with an allowance for credit losses recorded upon purchase.

Nonperforming Assets     Nonperforming assets are typically comprised of nonperforming loans and other real estate owned. Nonperforming loans consist of nonaccrual loans and loans that are 90 days or more past due but still accruing interest.

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The following table sets forth information regarding nonperforming assets held by the Company at the dates indicated:

Table 4 - Nonperforming Assets

	March 31 2022			December 31 2021			March 31 2021
	(Dollars in thousands)
Loans accounted for on a nonaccrual basis
Commercial and industrial	$	3,517		$	3,439		$	29,785
Commercial real estate	40,470			10,870			9,635
Small business	20			44			660
Residential real estate	8,457			9,182			13,392
Home equity	3,761			3,781			5,592
Other consumer	393			504			136
Total (1)	$	56,618		$	27,820		$	59,200
Loans past due 90 days or more but still accruing
Other consumer	—			—			1
Total	$	—		$	—		$	1
Total nonperforming loans	$	56,618		$	27,820		$	59,201
Other real estate owned	—			—			—
Total nonperforming assets	$	56,618		$	27,820		$	59,201
Nonperforming loans as a percent of gross loans	0.42		%	0.20		%	0.64		%
Nonperforming assets as a percent of total assets	0.28		%	0.14		%	0.43		%

(1)Inclusive of TDRs on nonaccrual status of $2.0 million at both March 31, 2022 and December 31, 2021 and $21.2 million at March 31, 2021.

    The following table summarizes the changes in nonperforming assets for the periods indicated:

Table 5 - Activity in Nonperforming Assets

	Three Months Ended
	March 31
	2022
	Three Months Ended
	March 31 2022		March 31 2021
	(Dollars in thousands)
Nonperforming assets beginning balance	$	27,820	$	66,861
New to nonperforming	33,754		2,359
Loans charged-off	(706)		(3,686)
Loans paid-off	(1,485)		(4,025)
Loans restored to performing status	(2,702)		(2,559)
Other	(63)		251
Nonperforming assets ending balance	$	56,618	$	59,201

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The following table sets forth information regarding troubled debt restructured loans as of the dates indicated:

Table 6 - Troubled Debt Restructurings

	March 31 2022			December 31 2021			March 31 2021
	(Dollars in thousands)
Performing troubled debt restructurings	$	13,288		$	14,635		$	20,262
Nonaccrual troubled debt restructurings	1,972			1,993			21,167
Total	$	15,260		$	16,628		$	41,429
Performing troubled debt restructurings as a % of total loans	0.10		%	0.11		%	0.22		%
Nonaccrual troubled debt restructurings as a % of total loans	0.01		%	0.01		%	0.23		%
Total troubled debt restructurings as a % of total loans	0.11		%	0.12		%	0.45		%

The following table summarizes changes in TDRs for the periods indicated:

Table 7 - Activity in Troubled Debt Restructurings

	Three Months Ended
	March 31 2022		March 31 2021
	(Dollars in thousands)
TDRs beginning balance	$	16,628	$	39,192
New to TDR status	—		3,836
Paydowns	(1,368)		(1,599)
TDRs ending balance	$	15,260	$	41,429

    Income accruals are suspended on all nonaccrual loans and all previously accrued and uncollected interest is reversed against current income. The table below shows interest income that was recognized or collected on all nonaccrual loans and TDRs for the periods indicated:

Table 8 - Interest Income - Nonaccrual Loans and Troubled Debt Restructurings

	Three Months Ended
	March 31 2022		March 31 2021
	(Dollars in thousands)
The amount of incremental gross interest income that would have been recorded if nonaccrual loans had been current in accordance with their original terms	$	1,262	$	917
The amount of interest income on nonaccrual loans and performing TDRs that was included in net income	$	180	$	264

Potential problem loans are any loans which are not included in nonaccrual or nonperforming loans, where known information about possible credit problems of the borrowers causes management to have concerns as to the ability of such borrowers to comply with present loan repayment terms. At March 31, 2022, there were 48 relationships, with an aggregate balance of $127.7 million, deemed to be potential problem loans. These potential problem loans continued to perform with respect to payments. Management actively monitors these loans and strives to minimize any possible adverse impact to the Company. A portion of the potential problem loans identified by management were granted a deferral in accordance with the relief options offered in response to the COVID-19 pandemic. If applicable, these potential problem loans with an active deferral as of March 31, 2022 have been included in the table below.

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As previously noted, the Company has offered need-based payment relief options to its customers in response to the COVID-19 pandemic, primarily in the form of payment deferrals, all of which were granted prior to December 31, 2020. Loans that were modified are not accounted for as TDRs or reflected as delinquent or nonaccrual loans if the borrower was in compliance with their loan terms as of December 31, 2019. The following table summarizes active deferrals by modification type as of March 31, 2022:

Table 9 - Deferrals by Modification Type

	Deferral of Principal Only		Total Portfolio		% Deferral
	(Dollars in thousands)
Commercial and industrial	$	—	$	1,566,192	—	%
Commercial real estate (1)	304,508		9,051,561		3.4	%
Business banking	—		200,405		—	%
Residential real estate	—		1,706,045		—	%
Home equity	—		1,025,815		—	%
Consumer	—		30,009		—	%
Total active deferrals as of March 31, 2022	$	304,508	$	13,580,027	2.2	%

(1) Balances include commercial construction deferrals.

Allowance for Credit Losses  The allowance for credit losses is maintained at a level that management considers appropriate to provide for the Company's current estimate of expected lifetime credit losses on loans measured at amortized cost. The allowance is increased by providing for credit losses through a charge to expense and by credits for recoveries of loans previously charged-off and is reduced by loans being charged-off.

In accordance with the CECL methodology, the Company estimates credit losses for financial assets on a collective basis for loans sharing similar risk characteristics using a quantitative model combined with an assessment of certain qualitative factors designed to address forecast risk and model risk inherent in the quantitative model output. The model estimates expected credit losses using loan level data over the contractual life of the exposure, considering the effect of prepayments. Economic forecasts are incorporated into the estimate over a reasonable and supportable forecast period of one year, beyond which is a reversion to the Company's historical long-run average for a period of 6 months. The Company's qualitative assessment is structured based upon nine environmental factors impacting the expected risk of loss within the loan portfolio. Loans that do not share similar risk characteristics with any pools of assets are subject to individual assessment and are removed from the collectively assessed pools to avoid double counting. For the loans that will be individually assessed, the Company uses either a discounted cash flow (“DCF”) approach or a fair value of collateral approach. The latter approach is used for loans deemed to be collateral dependent or when foreclosure is probable.

The allowance for credit losses of $144.5 million at March 31, 2022 represents a decrease of $2.4 million, or 1.6% compared to December 31, 2021. The Company recorded a release of provision for credit losses of $2.0 million during the three months ended March 31, 2022, primarily reflecting the stabilized credit quality environment.

In addition, the allowance for credit losses at March 31, 2022 is reflective of a lower quantitative reserve due to continued strong asset quality metrics experienced by the Company. Partially offsetting this decline was the increased impact of the reasonable and supportable forecast modeled in the allowance for credit losses, which incorporates an economic scenario reflective of management's assumption that some economic uncertainty remains. Although the federal funds rates are expected to be increased in the near term, management anticipates that supply chain issues will continue to worsen with increased shortages of goods, the military conflict between Russia and Ukraine will persist longer than originally anticipated for the foreseeable future, potentially impacting global oil supplies and the supply chain more generally and general economic conditions, as well as concerns regarding rising COVID-19 cases and the possibility of resurgences. Additionally, the allowance for credit losses continues to be qualitatively adjusted in order to ensure coverage for relationships that are deemed to be more at risk within certain industries, specific collateral types, or other specific characteristics that may be highly impacted by the current economic environment.

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    The following table summarizes the ratio of net charge-offs to average loans outstanding within each major loan category for the periods presented:

Table 10 - Summary Net Charge-Offs to Average Loans Outstanding

	Net Charge-Off (Recoveries)		Average Amount Outstanding		Ratio of Annualized Net Charge-Offs/(Recoveries) to Average Loans
	(Dollars in thousands)
	Three Months Ended March 31, 2022
Commercial and industrial	$	(13)	$	1,535,619	—	%
Commercial real estate	(3)		7,911,349		—	%
Commercial construction	—		1,190,659		—	%
Small business	22		194,819		0.05	%
Residential real estate	—		1,649,157		—	%
Home equity	(2)		1,032,308		—	%
Other consumer	400		29,814		5.44	%
Total	$	404	$	13,543,725	0.01	%
	Three Months Ended March 31, 2021
Commercial and industrial	$	3,267	$	2,115,069	0.63	%
Commercial real estate	(57)		4,156,012		(0.01)	%
Commercial construction	—		555,153		—	%
Small business	55		174,320		0.13	%
Residential real estate	(1)		1,271,283		—	%
Home equity	(13)		1,050,234		(0.01)	%
Other consumer	92		21,698		1.72	%
Total	$	3,343	$	9,343,769	0.15	%

The Company recorded net charge-offs of $404,000 for the three months ended March 31, 2022 compared to $3.3 million for the three months ended March 31, 2021. As noted in the table above, net charge-offs incurred by the Company have been minimal for the periods presented, with larger losses being isolated to individual loan workouts, and are not indicative of declining credit quality in the Company's overall loan portfolio.

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For purposes of the allowance for credit losses, management segregates the loan portfolio into the portfolio segments detailed in the table below. The allocation of the allowance for credit losses is made to each loan category using the analytical techniques and estimation methods described in this Report. While these amounts represent management’s best estimate of credit losses at the evaluation dates, they are not necessarily indicative of either the categories in which actual losses may occur or the extent of such actual losses that may be recognized within each category. Each of these loan categories possess unique risk characteristics that are considered when determining the appropriate level of allowance for each segment. The total allowance is available to absorb losses from any segment of the loan portfolio.

The following table sets forth the allocation of the allowance for credit losses by loan category at the dates indicated:

Table 11 - Summary of Allocation of Allowance for Credit Losses

	March 31 2022				December 31 2021
	Allowance Amount		Percent of Loans In  Category To Total Loans		Allowance Amount		Percent of Loans In  Category To Total Loans
	(Dollars in thousands)
Commercial and industrial (1)	$	14,169	11.5	%	$	14,402	11.5	%
Commercial real estate	84,436		58.1	%	83,486		58.8	%
Commercial construction	11,867		8.5	%	12,316		8.6	%
Small business	3,159		1.5	%	3,508		1.4	%
Residential real estate	18,388		12.6	%	14,484		11.8	%
Home equity	11,750		7.6	%	17,986		7.7	%
Other consumer	749		0.2	%	740		0.2	%
Total allowance for credit losses	$	144,518	100.0	%	$	146,922	100.0	%

(1)Total loans in this category are inclusive of $99.6 million and $216.2 million in loans, at March 31, 2022 and December 31, 2021, respectively, which were originated as part of the PPP established by the CARES Act. These loans have been excluded from the credit loss calculations as these loans are 100% guaranteed by the U.S. Government.

To determine if a loan should be charged-off, all possible sources of repayment are analyzed. Possible sources of repayment include the potential for future cash flows, the value of the Bank’s collateral, and the strength of co-makers or guarantors. When available information confirms that specific loans or portions thereof are uncollectible, these amounts are promptly charged-off against the allowance for credit losses and any recoveries of such previously charged-off amounts are credited to the allowance.

Regardless of whether a loan is unsecured or collateralized, the Company charges off the amount of any confirmed loan loss in the period when the loans, or portions of loans, are deemed uncollectible. For troubled, collateral-dependent loans, loss-confirming events may include an appraisal or other valuation that reflects a shortfall between the value of the collateral and the carrying value of the loan or receivable, or a deficiency balance following the sale of the collateral.

For additional information regarding the Company’s allowance for credit losses, see Note 4 "Loans, Allowance for Credit Losses and Credit Quality" within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report.

Federal Home Loan Bank Stock The Bank held investments in FHLB of Boston stock of $11.4 million at both March 31, 2022 and December 31, 2021. The FHLB is a cooperative that provides services to its member banking institutions. The primary reason for the FHLB of Boston membership is to gain access to a reliable source of wholesale funding as a tool to manage liquidity and interest rate risk. The purchase of stock in the FHLB is a requirement for a member to gain access to funding. The Company either purchases additional FHLB stock or is subject to redemption of FHLB stock proportional to the volume of funding received. The Company views the holdings as a necessary long-term investment for the purpose of balance sheet liquidity and not for investment return.

    Goodwill and Other Intangible Assets Goodwill and other intangible assets were $1.0 billion and at both March 31, 2022 and December 31, 2021.

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The Company typically performs its annual goodwill impairment testing during the third quarter of the year, unless certain indicators suggest earlier testing to be warranted. Accordingly, the Company last performed its annual goodwill impairment testing during the third quarter of 2021 and determined that the Company's goodwill was not impaired as of September 30, 2021. Other intangible assets are also reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. There were no events or changes during the first quarter of 2022 that indicated impairment of goodwill and other intangible assets.

Cash Surrender Value of Life Insurance Policies The Bank holds life insurance policies for the purpose of offsetting its future obligations to its employees under its retirement and benefits plans. The cash surrender value of life insurance policies was $291.2 million at March 31, 2022 compared to $289.3 million at December 31, 2021, representing an increase of $1.9 million, or 0.7%.

The Company recorded tax exempt income from life insurance policies of $1.8 million and $1.3 million for the three months ended March 31, 2022 and 2021, respectively. There were no gains on life insurance benefits recorded for the three months ended March 31, 2022 and $258,000 for the three months ended March 31, 2021.

Deposits As of March 31, 2022, total deposits were $16.8 billion, representing a $153.7 million, or 0.9%, decrease from December 31, 2021, primarily attributable to continued runoff in time deposits. The total cost of deposits was 0.05% and 0.10% for the three months ended March 31, 2022 and 2021, respectively. Core deposits increased from 84.5% of total deposits as of December 31, 2021 to 85.8% of total deposits as of March 31, 2022.

    The Company also participates in the IntraFi Network, allowing the Bank to provide easy access to multi-million dollar Federal Deposit Insurance Corporation ("FDIC") deposit insurance protection on certificate of deposit and money market investments for consumers, businesses and public entities. This channel allows the Company to seek additional funding in potentially large quantities by attracting deposits from outside the Bank’s core market, and amounted to $916.8 million and $998.1 million at March 31, 2022 and December 31, 2021, respectively. In addition, the Company may occasionally raise funds through the use of brokered deposits outside of the IntraFi Network, which amounted to $115.9 million and $141.6 million at March 31, 2022 and December 31, 2021, respectively.

Borrowings  The Company's borrowings consist of both short-term and long-term borrowings and provide the Bank with one of its primary sources of funding. Maintaining available borrowing capacity provides the Bank with a contingent source of liquidity. Borrowings were $138.3 million at March 31, 2022, a decrease of $14.0 million, or 9.22%, as compared to December 31, 2022, due primarily to the re-payment of a revolving loan credit facility.

Additionally, the Bank had $4.2 billion of assets pledged as collateral against borrowings at both March 31, 2022 and December 31, 2021. These assets are primarily pledged to the FHLB of Boston and the Federal Reserve Bank of Boston.

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Capital Resources On March 17, 2022 the Company’s Board of Directors declared a cash dividend of $0.51 per share to shareholders of record as of the close of business on March 28, 2022. This dividend was paid on April 8, 2022.

The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of the Company’s and the Bank’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of Total, Tier 1 Capital and Common Equity Tier 1 Capital (as defined for regulatory purposes) to risk weighted assets (as defined for regulatory purposes) and Tier 1 Capital to average assets (as defined for regulatory purposes). At March 31, 2022 and December 31, 2021, the Company and the Bank exceeded the minimum requirements for all applicable ratios that were in effect during the respective periods. The Company’s and the Bank’s capital amounts and ratios are presented in the following table, along with the applicable minimum requirements as of each date indicated:

Table 12 - Company and Bank's Capital Amounts and Ratios 

	Actual				For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio		Amount			Ratio		Amount			Ratio
	March 31, 2022
	(Dollars in thousands)
Company (consolidated)
Total capital (to risk weighted assets)	$	2,291,537	16.18	%	$	1,132,722	≥	8.0	%	N/A			N/A
Common equity tier 1 capital (to risk weighted assets)	2,046,456		14.45	%	637,156		≥	4.5	%	N/A			N/A
Tier 1 capital (to risk weighted assets)	2,046,456		14.45	%	849,542		≥	6.0	%	N/A			N/A
Tier 1 capital (to average assets)	2,046,456		10.62	%	771,037		≥	4.0	%	N/A			N/A
Bank
Total capital (to risk weighted assets)	$	2,114,659	14.94	%	$	1,132,279	≥	8.0	%	$	1,415,349	≥	10.0	%
Common equity tier 1 capital (to risk weighted assets)	1,980,392		13.99	%	636,907		≥	4.5	%	919,977		≥	6.5	%
Tier 1 capital (to risk weighted assets)	1,980,392		13.99	%	849,209		≥	6.0	%	1,132,279		≥	8.0	%
Tier 1 capital (to average assets)	1,980,392		10.28	%	770,864		≥	4.0	%	963,580		≥	5.0	%
	December 31, 2021
	(Dollars in thousands)
Company (consolidated)
Total capital (to risk weighted assets)	$	2,262,740	16.04	%	$	1,128,900	≥	8.0	%	N/A			N/A
Common equity tier 1 capital (to risk weighted assets)	2,017,497		14.30	%	635,006		≥	4.5	%	N/A			N/A
Tier 1 capital (to risk weighted assets)	2,017,497		14.30	%	846,675		≥	6.0	%	N/A			N/A
Tier 1 capital (to average assets)	2,017,497		12.03	%	670,659		≥	4.0	%	N/A			N/A
Bank
Total capital (to risk weighted assets)	$	2,083,689	14.77	%	$	1,128,536	≥	8.0	%	$	1,410,670	≥	10.0	%
Common equity tier 1 capital (to risk weighted assets)	1,949,237		13.82	%	634,801		≥	4.5	%	916,935		≥	6.5	%
Tier 1 capital (to risk weighted assets)	1,949,237		13.82	%	846,402		≥	6.0	%	1,128,536		≥	8.0	%
Tier 1 capital (to average assets)	1,949,237		11.62	%	670,827		≥	4.0	%	838,534		≥	5.0	%

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    In addition to the minimum risk-based capital requirements outlined in the table above, the Company is required to maintain a minimum capital conservation buffer, in the form of common equity, in order to avoid restrictions on capital distributions and discretionary bonuses. The required amount of the capital conservation buffer is 2.5%. At March 31, 2022, the Company's capital levels exceeded the buffer.

Dividend Restrictions The Company is subject to capital and dividend requirements administered by federal and state bank regulators, and the Company will not declare a cash dividend that would cause the Company to violate regulatory requirements. The Company is, in the ordinary course of business, dependent upon the receipt of cash dividends from the Bank to pay cash dividends to shareholders and satisfy the Company’s other cash needs. Federal and state law impose limits on capital distributions by the Bank. Massachusetts-chartered banks, such as the Bank, may declare from net profits cash dividends not more frequently than quarterly and non-cash dividends at any time. No dividends may be declared, credited, or paid if the Bank’s capital stock would be impaired. Massachusetts Bank Commissioner approval is required if the total of all dividends declared by the Bank in any calendar year would exceed the total of its net profits for that year combined with its retained net profits of the preceding two years, less any required transfer to surplus or a fund for the retirement of any preferred stock. Dividends of $25.0 million and were paid by the Bank to the Company for the three months ended March 31, 2022 and there were no dividends paid by the Bank to the Company for the three months ended March 31, 2021.

Trust Preferred Securities In accordance with the applicable accounting standard related to variable interest entities, the common stock of trusts which have issued trust preferred securities has not been included in the consolidated financial statements of the Company. At each of March 31, 2022 and December 31, 2021 there were $61.0 million in trust preferred securities included in the Tier 2 capital of the Company for regulatory reporting purposes pursuant to the Federal Reserve's capital adequacy guidelines.

Investment Management As of March 31, 2022, the Rockland Trust Investment Management Group had assets under administration of $5.7 billion, representing 6,667 trust, fiduciary, and agency accounts. At December 31, 2021, assets under administration were also $5.7 billion, representing approximately 6,379 trust, fiduciary, and agency accounts. Also, included in these amounts as of March 31, 2022 and December 31, 2021 are assets under administration of $428.1 million and $447.4 million, respectively, relating to the Company’s registered investment advisor, Bright Rock Capital Management, LLC, which provides institutional quality investment management services to institutional and high net worth clients. Revenue from the Investment Management Group was $7.9 million and $7.4 million for the three months ended March 31, 2022 and 2021, respectively.

Retail investments and insurance revenue was $769,000 and $902,000 for the three months ended March 31, 2022 and 2021, respectively.

The administration of trust and fiduciary accounts is monitored by the Trust Committee of the Bank’s Board of Directors. The Trust Committee has delegated administrative responsibilities to three committees, one for investments, one for administration, and one for operations, all of which are comprised of Investment Management Group officers who meet no less than quarterly.

The Bank has an agreement with LPL Financial ("LPL") and its affiliates and their insurance subsidiary, LPL Insurance Associates, Inc., to offer the sale of mutual fund shares, unit investment trust shares, general securities, fixed and variable annuities and life insurance. Registered representatives who are both employed by the Bank and licensed and contracted with LPL are onsite to offer these products to the Bank’s customer base. These same agents are also approved and appointed with various other Broker General Agents for the purposes of processing insurance solutions for clients.

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RESULTS OF OPERATIONS

    The following table provides a summary of results of operations for the three months ended March 31, 2022 and 2021:

Table 13 - Summary of Results of Operations

	Three Months Ended March 31
	2022			2021
	(Dollars in thousands, except per share data)
Net income	$	53,097		$	41,711
Diluted earnings per share	$	1.12		$	1.26
Return on average assets	1.06		%	1.26		%
Return on average equity	7.16		%	9.87		%
Net interest margin	3.09		%	3.25		%

Net Interest Income The amount of net interest income is affected by changes in interest rates and by the volume, mix, and interest rate sensitivity of interest-earning assets and interest-bearing liabilities.

On a fully tax equivalent basis ("FTE"), net interest income for the first quarter of 2022 was $138.4 million, representing an increase of $42.6 million, or 44.4%, when compared to the first quarter of 2021, driven primarily by the full quarter impact of the Meridian acquisition.

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The following tables present the Company’s average balances, net interest income, interest rate spread, and net interest margin for the three months ended March 31, 2022 and 2021. Nontaxable income from loans and securities is presented on a FTE basis by adjusting tax-exempt income upward by an amount equivalent to the prevailing income tax rate that would have been paid if the income had been fully taxable.

Table 14 - Average Balance, Interest Earned/Paid & Average Yields Quarter-to-Date

	Three Months Ended March 31
	2022						2021
	Average Balance		Interest Earned/ Paid		Yield/Rate		Average Balance		Interest Earned/ Paid		Yield/Rate
	(Dollars in thousands)
Interest-earning assets
Interest-earning deposits with banks, federal funds sold, and short term investments	$	1,906,164	$	886	0.19	%	$	1,321,430	$	326	0.10	%
Securities
Securities - trading	3,732		—		—	%	2,939		—		—	%
Securities - taxable investments	2,726,281		10,043		1.49	%	1,250,451		6,627		2.15	%
Securities - nontaxable investments (1)	201		1		2.02	%	642		6		3.79	%
Total securities	$	2,730,214	$	10,044	1.49	%	$	1,254,032	$	6,633	2.15	%
Loans held for sale	9,475		64		2.74	%	49,652		296		2.42	%
Loans (2)
Commercial and industrial (1)	1,535,619		17,031		4.50	%	2,115,069		23,046		4.42	%
Commercial real estate (1)	7,911,349		76,030		3.90	%	4,156,012		40,376		3.94	%
Commercial construction	1,190,659		12,268		4.18	%	555,153		5,283		3.86	%
Small business	194,819		2,416		5.03	%	174,320		2,281		5.31	%
Total commercial	10,832,446		107,745		4.03	%	7,000,554		70,986		4.11	%
Residential real estate	1,649,157		13,697		3.37	%	1,271,283		12,436		3.97	%
Home equity	1,032,308		8,662		3.40	%	1,050,234		8,757		3.38	%
Total consumer real estate	2,681,465		22,359		3.38	%	2,321,517		21,193		3.70	%
Other consumer	29,814		489		6.65	%	21,698		432		8.07	%
Total loans	$	13,543,725	$	130,593	3.91	%	$	9,343,769	$	92,611	4.02	%
Total interest-earning assets	$	18,189,578	$	141,587	3.16	%	$	11,968,883	$	99,866	3.38	%
Cash and due from banks	171,533						154,870
Federal Home Loan Bank stock	11,407						10,250
Other assets	1,851,196						1,241,651
Total assets	$	20,223,714					$	13,375,654
Interest-bearing liabilities
Deposits
Savings and interest checking accounts	$	6,255,843	$	598	0.04	%	$	4,109,747	$	423	0.04	%
Money market	3,608,793		559		0.06	%	2,288,030		521		0.09	%
Time deposits	1,466,651		950		0.26	%	906,613		1,767		0.79	%
Total interest-bearing deposits	$	11,331,287	$	2,107	0.08	%	$	7,304,390	$	2,711	0.15	%
Borrowings
Federal Home Loan Bank borrowings	$	25,696	$	133	2.10	%	$	35,785	$	188	2.13	%
Long-term borrowings	9,063		31		1.39	%	28,247		111		1.59	%
Junior subordinated debentures	62,853		299		1.93	%	62,851		426		2.75	%
Subordinated debentures	49,800		617		5.02	%	49,705		617		5.03	%

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Total borrowings	$	147,412	$	1,080	2.97	%	$	176,588	$	1,342	3.08	%
Total interest-bearing liabilities	$	11,478,699	$	3,187	0.11	%	$	7,480,978	$	4,053	0.22	%
Noninterest bearing demand deposits	5,443,465						3,895,447
Other liabilities	293,597						285,857
Total liabilities	$	17,215,761					$	11,662,282
Stockholders' equity	3,007,953						1,713,372
Total liabilities and stockholders' equity	$	20,223,714					$	13,375,654
Net interest income (1)			$	138,400					$	95,813
Interest rate spread (3)					3.05	%					3.16	%
Net interest margin (4)					3.09	%					3.25	%
Supplemental information
Total deposits, including demand deposits	$	16,774,752	$	2,107			$	11,199,837	$	2,711
Cost of total deposits					0.05	%					0.10	%
Total funding liabilities, including demand deposits	$	16,922,164	$	3,187			$	11,376,425	$	4,053
Cost of total funding liabilities					0.08	%					0.14	%

(1)The total amount of adjustment to interest income and yield on a FTE basis was $968,000 and $229,000 for the three months ended March 31, 2022 and 2021, respectively. The FTE adjustment relates to tax exempt income relating to securities with average balances of $201,000 and $642,000 and tax exempt income relating to loans with average balances of $418.7 million and $70.2 million, for the three months ended March 31, 2022 and 2021, respectively.

(2)Includes average nonaccruing loans.

(3)Interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average cost of interest-bearing liabilities.

(4)Net interest margin represents annualized net interest income as a percentage of average interest-earning assets.

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The following table presents certain information on a FTE basis regarding changes in the Company’s interest income and interest expense for the periods indicated. For each category of interest-earning assets and interest-bearing liabilities, information is provided with respect to changes attributable to: (1) changes in rate (change in rate multiplied by prior period volume), (2) changes in volume (change in volume multiplied by old rate), and (3) changes in volume/rate (change in volume multiplied by change in rate) which is allocated to the change due to rate column:

Table 15 - Volume Rate Analysis

	Three Months Ended March 31
	2022 Compared To 2021
	Change Due to Rate		Change Due to Volume		Total Change
	(Dollars in thousands)
Income on interest-earning assets
Interest earning deposits, federal funds sold and short term investments	$	416	$	144	$	560
Securities
Securities - taxable investments	(4,405)		7,821		3,416
Securities - nontaxable investments (1)	(1)		(4)		(5)
Total securities					3,411
Loans held for sale	8		(240)		(232)
Loans
Commercial and industrial (1)	299		(6,314)		(6,015)
Commercial real estate (1)	(829)		36,483		35,654
Commercial construction	937		6,048		6,985
Small business	(133)		268		135
Total commercial					36,759
Residential real estate	(2,435)		3,696		1,261
Home equity	54		(149)		(95)
Total consumer real estate					1,166
Other consumer	(105)		162		57
Total loans (1)(2)					37,982
Total income of interest-earning assets					$	41,721
Expense of interest-bearing liabilities
Deposits
Savings and interest checking accounts	$	(46)	$	221	$	175
Money market	(263)		301		38
Time certificates of deposits	(1,909)		1,092		(817)
Total interest bearing deposits					(604)
Borrowings
Federal Home Loan Bank borrowings	(2)		(53)		(55)
Line of Credit					—
Long-term borrowings	(5)		(75)		(80)
Junior subordinated debentures	(127)		—		(127)
Subordinated debentures	(1)		1		—
Total borrowings					(262)
Total expense of interest-bearing liabilities					(866)
Change in net interest income					$	42,587

(1)Reflects income determined on a FTE basis. See footnote (1) to Table 14 in this Report for the related adjustments.

(2)Loans include portfolio loans and nonaccrual loans; however, unpaid interest on nonaccrual loans has not been included for purposes of determining interest income.

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Provision For Credit Losses The provision for credit losses represents the charge to expense that is required to maintain an adequate level of allowance for credit losses. The Company recorded a release of provision for credit losses of $2.0 million and $2.5 million for the three months ended March 31, 2022 and March 31, 2021, respectively. The Company’s allowance for credit losses, as a percentage of total loans, was 1.06% at March 31, 2022, 1.08% at December 31, 2021, and 1.16% at March 31, 2021. The Company recorded net charge-offs of $404,000 for the three months ended March 31, 2022, as compared to $3.3 million for the three months ended March 31, 2021. Refer to Note 4, "Loans, Allowance for Credit Losses and Credit Quality" within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report, for further details surrounding the primary drivers of the provision for credit losses for the period.

Noninterest Income The following table sets forth information regarding noninterest income for the periods shown:

Table 16 - Noninterest Income

	Three Months Ended
	March 31				Change
	2022		2021		Amount		%
	(Dollars in thousands)
Deposit account fees	$	5,493	$	3,584	$	1,909	53.26	%
Interchange and ATM fees	3,609		2,720		889		32.68	%
Investment management	8,673		8,304		369		4.44	%
Mortgage banking income	1,362		5,740		(4,378)		(76.27)	%
Gain on life insurance benefits	—		258		(258)		(100.00)	%
Increase in cash surrender value of life insurance policies	1,795		1,323		472		35.68	%
Loan level derivative income	604		173		431		249.13	%
Other noninterest income	4,736		3,144		1,592		50.64	%
Total	$	26,272	$	25,246	$	1,026	4.06	%

The primary reasons for the variances in the noninterest income categories shown in the preceding table in comparison to the year ago period include:

•Deposit account fee income increased due to the increased volume attributable to the Meridian acquisition, as well as lower levels of overdraft fees as customers benefited from government stimulus payments disbursed during the first quarter of 2021.

•Interchange and ATM fees increased primarily due to increased volume attributable to both the Meridian acquisition and rise in customer spending.

•Investment management income increased primarily driven by overall growth in assets under administration which increased 10.4% to $5.7 billion at March 31, 2022 from $5.2 billion at March 31, 2021. This increase was partially offset by depressed market valuations experienced during the first quarter of 2022.

•Mortgage banking income decreased primarily due to overall reduced volumes and a greater portion of new originations being retained in the Company's portfolio versus being sold in the secondary market.

•The cash surrender value of life insurance policies increased primarily due the impact of policies acquired from Meridian.

•Loan level derivative income increased primarily as a result of higher customer demand.

•Other noninterest income increased primarily attributable to increases in rental income from equipment leases as well as income from other investments, and business credit card interchange fees, partially offset by lower unrealized gains on equity securities.

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Noninterest Expense The following table sets forth information regarding non-interest expense for the periods shown:

Table 17 - Noninterest Expense

	Three Months Ended
	March 31				Change
	2022		2021		Amount		%
	(Dollars in thousands)
Salaries and employee benefits	$	48,711	$	39,889	$	8,822	22.12	%
Occupancy and equipment expenses	13,302		9,273		4,029		43.45	%
Data processing & facilities management	2,372		1,665		707		42.46	%
Merger and acquisition expenses	7,100		—		7,100		100.00%
Software maintenance	2,564		1,970		594		30.15	%
Amortization of intangible assets	2,001		1,413		588		41.61	%
FDIC assessment	1,805		1,050		755		71.90	%
Debit card expense	1,765		1,181		584		49.45	%
Consulting expense	1,750		2,391		(641)		(26.81)	%
Other noninterest expenses	14,130		10,850		3,280		30.23	%
Total	$	95,500	$	69,682	$	25,818	37.05	%

The primary reasons for the variances in the noninterest expense categories shown in the preceding table in comparison to the year ago period include:

•The increase in salaries and employee benefits was primarily due to the Company's increased workforce base following the Meridian acquisition.

•Occupancy and equipment expenses increased primarily driven by a full quarter of costs associated with the Company's expanded branch network, real estate and other fixed assets resulting from the Meridian acquisition, as well as an increase in snow removal costs.

•Data processing and facilities management expenses increased primarily due to timing of certain initiatives and general increases associated with the Company's higher transaction volume.

•Merger and acquisition costs incurred in relation to the Meridian acquisition were $7.1 million for the first quarter of 2022. The majority of first quarter 2022 costs related to lease terminations associated with exited branch locations, along with additional integration costs and professional fees incurred during the quarter. No such costs were incurred during the year ago period.

•Software maintenance increased primarily due to the Company's continued investment in its technology infrastructure.

•FDIC assessment increased primarily due to an increased assessment base resulting from the Meridian acquisition.

•Consulting expense decreased primarily due to timing of strategic initiatives and elevated expenses related to projects and measures implemented in response to the COVID-19 pandemic during the first quarter of 2021.

•Other noninterest expense increased primarily due to a full quarter of general increases associated with the Meridian acquisition, along with elevated unrealized losses on equity securities recognized during the first quarter of 2022.

Income Taxes The tax effect of all income and expense transactions is recognized by the Company in each year’s consolidated statements of income, regardless of the year in which the transactions are reported for income tax purposes. The following table sets forth information regarding the Company’s tax provision and applicable tax rates for the periods indicated:

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Table 18 - Tax Provision and Applicable Tax Rates

	Three Months Ended
	March 31
	2022			2021
	(Dollars in thousands)
Combined federal and state income tax provision	$	17,107		$	11,937
Effective income tax rate	24.37		%	22.25		%
Blended statutory tax rate	27.11		%	27.92		%

The Company’s effective tax rate in 2022 thus far is higher as compared to the year ago period primarily due to higher pre-tax income, as well as the impact of discrete items, including tax benefits related to low income housing tax credits and equity compensation.  The discrete tax amounts for the three months ended March 31, 2021 also reflect a benefit of $4.7 million associated with the net operating loss (NOL) carryback provision of the CARES Act.  The NOL was generated in relation to the acquisition of Blue Hills Bancorp, Inc. in 2019. The effective tax rates in the table above are lower than the blended statutory tax rates due to the aforementioned discrete items as well as certain tax preference assets such as life insurance policies, tax exempt bonds, and federal tax credits. The Company’s blended statutory tax rate for the three months ended March 31, 2022 is comparable to the year ago period.

The Company invests in various low income housing projects, which are real estate limited partnerships that acquire, develop, own and operate low and moderate-income housing developments. As a limited partner in these operating partnerships, the Company will receive tax credits and tax deductions for losses incurred by the underlying properties. The investments are accounted for using the proportional amortization method and will be amortized over various periods through 2039, which represents the period that the tax credits and other tax benefits will be utilized. The total committed investment in these partnerships is $178.8 million, of which $112.6 million had been funded as of March 31, 2022. It is expected that the limited partnership investments will generate a net tax benefit of approximately $3.6 million for the fiscal year 2022 and a total of $21.3 million over the remaining life of the investments from the combination of the tax credits and operating losses.

Risk Management

The Board of Directors has approved an Enterprise Risk Management Policy to state the Company’s goals and objectives in identifying, measuring, and managing the risks associated with the Company’s current and near future anticipated size and complexity. Management is responsible for comprehensive enterprise risk management, and continually strives to adopt and implement practices that strike an appropriate balance between risk and reward and permit the achievement of strategic goals in a controlled environment.

The Company has implemented the “three lines of defense” enterprise risk management model. The first line of defense are the executives in charge of business units, operational areas, and corporate functions who, sometimes assisted by management committees, teams, and working groups, own and manage risks. The second line of defense is the Chief Risk Officer and the risk department, who monitor and provide advice with respect to first line risk management. The third line of defense is independent assurance performed by the Chief Internal Auditor, who reports to the Audit Committee of the Company's Board of Directors, and by the Company's internal audit department.

The Board of Directors, with the assistance of its Risk Committee, oversees management’s enterprise risk management practices. As risks must be taken to create value, the Board of Directors has approved a Risk Appetite Statement that defines the acceptable residual risk tolerances for the Company and the seven major risk types identified as having the potential to create significant adverse impacts on the Company, such as financial losses, reputational damage, legal or regulatory actions, nonachievement of strategic objectives, diminished customer experience, and/or cultural erosion. The seven major risk types identified by the Company and addressed in the Risk Appetite Statement are strategic risk, culture risk, credit risk, liquidity risk, market risk, operational risk, and reputation risk, each of which is discussed below.

Strategic Risk   Strategic risk is the risk arising from adverse strategic or business decisions, misalignment of strategic direction with the Company’s mission and values, failure to execute strategies or tactics, or an inadequate adaptation or lack of responsiveness to industry and/or operating environment changes. Management seeks to mitigate strategic risk through strategic planning, frequent executive review of strategic plan progress, monitoring of competitors and technology, assessment of new products, new branches, and new business initiatives, customer advocacy, and crisis management planning.

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Culture Risk    Culture risk is the risk arising from failed leadership and/or ineffective colleague engagement and workplace management that causes the Company to lose sight of core values and, through acts or omissions, damage the relationship-based culture which has been one of the foundations of the Company’s consistent success. Management mitigates culture risk through effective employee relations, leadership that encourages continuous improvement, cultural development and reinforcement of core values, communication of clear ethical and behavioral standards, consistent enforcement of policies and programs, discipline of misbehavior, alignment of incentives and compensation, and by promoting diversity, equity, and inclusion.

Credit Risk    Credit risk is the risk arising from the failure of a borrower or a counterparty to a contract to make payments as agreed, and includes the risks arising from inadequate collateral and mismanagement of loan concentrations. While the collateral securing loans may be sufficient in some cases to recover the amount due, in other cases the Company may experience significant credit losses which could have an adverse effect on its operating results. The Company makes assumptions and judgments about the collectability of its loan portfolio, including the creditworthiness of its borrowers and counterparties and the value of collateral for the repayment of loans. For further discussion regarding the credit risk and the credit quality of the Company’s loan portfolio, see Note 4, “Loans, Allowance for Credit Losses and Credit Quality” within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report.

Liquidity Risk    Liquidity risk is the risk arising from the Company being unable to meet obligations when due. Liquidity risk includes the inability to access funding sources or manage fluctuations in available funding levels. Liquidity risk also results from a failure to recognize or address market condition changes that affect the ability to liquidate assets quickly with minimal value loss.

The Company’s primary sources of funds are deposits, borrowings, and the amortization, prepayment, and maturities of loans and securities. The Bank utilizes its extensive branch network to access retail customers who provide a base of in-market core deposits. These funds are principally comprised of demand deposits, interest checking accounts, savings accounts, and money market accounts. Deposit levels are greatly influenced by interest rates, economic conditions, and competitive factors.

The Company’s primary measure of short-term liquidity is the Total Basic Surplus/Deficit as a percentage of assets. This ratio, which is an analysis of the relationship between liquid assets plus available Federal Home Loan Bank funding, less short-term liabilities relative to total assets, was within policy limits at March 31, 2022. The Total Basic Surplus/Deficit measure is affected primarily by changes in deposits, securities and short-term investments, loans, and borrowings. An increase in deposits, without a corresponding increase in nonliquid assets, will improve the Total Basic Surplus/Deficit measure, whereas, an increase in loans, with no increase in deposits, will decrease the measure. Other factors affecting the Total Basic Surplus/Deficit include Federal Home Loan Bank collateral requirements, securities portfolio changes, and the mix of deposits.

The Company seeks to increase deposits without adversely impacting its weighted average funding cost. The Company also maintains a variety of liquidity sources, including Federal Home Loan Bank advances, Federal Reserve borrowing capacity, and repurchase agreement lines. These funding sources serve as a contingent source of liquidity and, when profitable lending and investment opportunities exist, the Company may access them to provide the liquidity needed to grow the balance sheet. The amount and type of assets that the Company has available to pledge impacts the Company's Federal Home Loan Bank and Federal Reserve borrowing capacity. For example, a prime one-to-four family residential loan may provide 75 cents of borrowing capacity for every $1.00 pledged, whereas a pledged commercial loan may increase borrowing capacity in a lower amount. The Company’s lending decisions, therefore, can also affect its liquidity position.

The Company can also raise additional funds through the issuance of equity or unsecured debt privately or publicly and has done so in the past. Additionally, the Company is able to enter into repurchase agreements or acquire brokered deposits at its discretion. The availability and cost of equity or debt on an unsecured basis is dependent on many factors, including the Company’s financial position, the market environment, and the Company’s credit rating. The Company monitors the factors that could impact its ability to raise liquidity through these channels.

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The following table depicts current and unused liquidity capacity from various sources as of the dates indicated:

Table 19 - Liquidity Sources

	March 31, 2022				December 31, 2021
	Outstanding		Additional Borrowing Capacity		Outstanding		Additional Borrowing  Capacity
	(Dollars in thousands)
Federal Home Loan Bank of Boston (1)	$	25,660	$	1,693,948	$	25,667	$	1,622,494
Federal Reserve Bank of Boston (2)	—		1,318,718		—		1,176,486
Unpledged Securities	—		2,056,302		—		1,897,148
Line of Credit	—		85,000		—		85,000
Long-term borrowing (3)	—		—		14,063		—
Junior subordinated debentures (3)	62,854		—		62,853		—
Subordinated debt (3)	49,814		—		49,791		—
Reciprocal deposits (3)	916,841		—		998,121		—
Brokered deposits (3)	115,906		—		141,572		—
	$	1,171,075	$	5,153,968	$	1,292,067	$	4,781,128

(1)Loans with a carrying value of $2.4 billion and $2.3 billion at March 31, 2022 and December 31, 2021, respectively, were pledged to the Federal Home Loan Bank of Boston resulting in this additional unused borrowing capacity.

(2)Loans with a carrying value of $1.8 billion at both March 31, 2022 and December 31, 2021 were pledged to the Federal Reserve Bank of Boston resulting in this additional unused borrowing capacity.

(3)The additional borrowing capacity has not been assessed for these categories.

In addition to customary operational liquidity practices, the Board of Directors and management recognize the need to establish reasonable guidelines to manage a heightened liquidity risk environment. Catalysts for elevated liquidity risk can be Company-specific issues and/or systemic industry-wide events. It is therefore the responsibility of management to institute systems and controls designed to provide advanced detection of potentially significant funding shortages, establish methods for assessing and monitoring risk levels, and institute responses that may alleviate or circumvent a potential liquidity crisis. Management has established a Liquidity Contingency Plan to provide a framework to detect potential liquidity problems and appropriately address them in a timely manner. In a period of perceived heightened liquidity risk, the Liquidity Contingency Plan provides for the establishment of a Liquidity Crisis Task Force to monitor the potential for a liquidity crisis and establish and execute an appropriate response.

Market Risk Market risk is the risk arising from changes in interest rates and the value of investments due to market conditions or other external factors or events. The Company’s primary market risk exposure is interest rate risk.

Interest rate risk is the sensitivity of income to changes in interest rates. Interest rate changes, as well as fluctuations in the level and duration of assets and liabilities, affect net interest income, the Company’s primary source of revenue. Interest rate risk arises directly from the Company’s core banking activities. In addition to directly impacting net interest income, changes in the level of interest rates can also affect the amount of loans originated, the timing of cash flows on loans and securities, and the fair value of securities and derivatives, and have other effects.

Management strives to control interest rate risk within limits approved by the Board of Directors that reflect the Company’s tolerance for interest rate risk over short-term and long-term horizons. The Company attempts to manage interest rate risk by identifying, quantifying, and, where appropriate, hedging exposure. If assets and liabilities do not re-price simultaneously and in equal volume, the potential for interest rate exposure exists. It is the Company's objective to maintain stability in the growth of net interest income through the maintenance of an appropriate mix of interest-earning assets and interest-bearing liabilities and, when necessary within limits management deems prudent, through the use of off-balance sheet hedging instruments such as interest rate swaps, floors, and caps.

The Company quantifies its interest rate exposures using net interest income simulation models, as well as simpler gap analysis, and an Economic Value of Equity analysis. Key assumptions in these analyses relate to behavior of interest rates and behavior of the Company’s deposit and loan customers. The most material assumptions relate to the prepayment of mortgage assets (including mortgage loans and mortgage-backed securities) and the life and sensitivity of non-maturity deposits (e.g.,

81

demand deposit, negotiable order of withdrawal, savings, and money market accounts). In the case of prepayment of mortgage assets, assumptions are derived from published dealer median prepayment estimates for comparable mortgage loans. The risk of prepayment tends to increase when interest rates fall. Since future prepayment behavior of loan customers is uncertain, interest rate sensitivity of loans cannot be determined with precision and actual behavior may differ from assumptions to a significant degree.

Based upon the net interest income simulation models, the Company currently forecasts that assets are anticipated to re-price faster than liabilities. As a result, net interest income will be positively impacted as market rates increase and negatively impacted if market rates decrease. The Company runs several scenarios to quantify and effectively assist in managing interest rate risk, including instantaneous parallel shifts in market rates as well as gradual (12-24 months) shifts in market rates, and may also include other alternative scenarios as management deems necessary given the interest rate environment.

The results of all scenarios and the impact to net interest income are outlined in the table below:

Table 20 - Interest Rate Sensitivity

	March 31
	2022				2021
	Year 1		Year 2		Year 1		Year 2
Parallel rate shocks (basis points)
-100	(4.8)	%	(7.2)	%	(2.8)	%	(14.0)	%
+100	5.1	%	11.9	%	6.8	%	2.0	%
+200	10.0	%	20.4	%	14.5	%	12.6	%
+300	15.5	%	30.1	%	22.7	%	23.6	%
+400	20.9	%	39.8	%	30.5	%	34.0	%
Gradual rate shifts (basis points)
-100 over 12 months	(2.1)	%	(5.2)	%	(1.1)	%	(12.4)	%
+200 over 12 months	5.0	%	19.0	%	6.6	%	10.2	%
+400 over 24 months	5.0	%	26.1	%	6.7	%	18.7	%
Alternative scenarios
Flat up 200 basis points scenario	3.6	%	11.6		6.8	%	9.7	%

The results depicted in the table above are dependent on material assumptions. For instance, asymmetrical rate behavior can have a material impact on the simulation results. If competition for deposits prompts the Company to raise rates on those liabilities more quickly than is assumed in the simulation analysis without a corresponding increase in asset yields, net interest income would be negatively impacted. Alternatively, if the Company is able to lag increases in deposit rates as loans re-price upward, net interest income would be positively impacted.

The most significant market factors affecting the Company’s net interest income during the three months ended March 31, 2022 were the shape of the U.S. Government securities and interest rate swap yield curve, the U.S. prime interest rate, LIBOR rates, the secured overnight financing rates ("SOFR"), and the interest rates being offered on long-term fixed rate loans.

The Company manages the interest rate risk inherent in both its loan and borrowing portfolios by using interest rate swap agreements and interest rate caps and floors. An interest rate swap is an agreement in which one party agrees to pay a floating rate of interest on a notional principal amount in exchange for receiving a fixed rate of interest on the same notional amount for a predetermined period of time from the other party. Interest rate caps and floors are agreements where one party agrees to pay a floating rate of interest on a notional principal amount for a predetermined period of time to a second party if certain market interest rate thresholds are realized. While interest is paid or received in swap, cap, and floors agreements, the notional principal amount is not actually exchanged. The Company may also manage the interest rate risk inherent in its mortgage banking operations by entering into forward sales contracts under which the Company agrees to deliver whole mortgage loans to various investors. See Note 6, “Derivative and Hedging Activities” within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report for additional information regarding the Company’s derivative financial instruments.

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The Company’s earnings are not directly or materially impacted by movements in foreign currency rates or commodity prices. Movements in equity prices may have a modest impact on earnings by affecting the volume of activity or the amount of fees from investment-related business lines. See Note 3, “Securities” within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report.

Operational Risk    Operational risk is the risk arising from human error or misconduct, transaction errors or delays, inadequate or failed internal systems or processes, data unavailability, loss, or poor quality, or adverse external events. Operational risk includes business resiliency risk, consumer compliance risk, data governance risk, fraud risk, information security risk, information technology risk, legal risk, model risk, regulatory compliance risk, and third party vendor risk. Potential operational risk exposure exists throughout the Company. The continued effectiveness of colleagues, technical systems, operational infrastructure, and relationships with key third party service providers are integral to mitigating operational risk, and any shortcomings subject the Company to risks that vary in size, scale and scope. Operational risks include operational or technical failures, unlawful tampering with technical systems, cyber security, terrorist activities, ineffectiveness or exposure due to interruption in third party support, as well as the loss of key individuals or a failure of key individuals to perform properly.

Reputation Risk Reputational risk is the risk arising from negative public opinion of the Company and the Bank. Management seeks to mitigate reputation risk through actions that include a structured process of customer complaint resolution and ongoing reputational monitoring.

Contractual Obligations, Commitments, Contingencies, and Off-Balance Sheet Financial Information

Off-Balance Sheet Arrangements There were no material changes in off-balance sheet financial instruments during the three months ended March 31, 2022.

See Note 6, "Derivative and Hedging Activities" and Note 10, "Commitments and Contingencies" within the Notes to Consolidated Financial Statements included in Part I. Item 1 of this Report for more information relating to the Company's other off-balance sheet financial instruments.

Contractual Obligations, Commitments, and Contingencies There were no material changes in contractual obligations, commitments, or contingencies during the three months ended March 31, 2022.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Information required by this Item 3 is included in the "Risk Management" section of Part I. Item 2 "Management's Discussion and Analysis of Financial Condition and Results of Operations" of this Report and is incorporated herein by reference.

Item 4. Controls and Procedures

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures.  The Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer along with the Company’s Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures, as such term is defined under Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended. Based upon that evaluation, the Company’s Chief Executive Officer along with the Company’s Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of the end of the period covered by this quarterly report.

Changes in Internal Control over Financial Reporting. There were no changes in the Company's internal control over financial reporting that occurred during the first quarter of 2022 that have materially affected or are reasonably likely to materially affect the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item  1. Legal Proceedings

At March 31, 2022, the Bank was involved in pending lawsuits that arose in the ordinary course of business. Management has reviewed these pending lawsuits with legal counsel and has taken into consideration the view of counsel as to their outcome. In the opinion of management, the final disposition of pending lawsuits is not expected to have a material adverse effect on the Company’s financial position or results of operations.

83

Item 1A. Risk Factors

    The section titled Risk Factors in Part I, Item 1A of the 2021 Form 10-K includes a discussion of the material risks and uncertainties the Company faces, any one or more of which could have a material adverse effect on the Company's business, results of operations, or financial condition (including capital and liquidity). As of the date of this Report, there have been no material changes with regard to the Risk Factors disclosed in Item 1A of the 2021 Form 10-K which are incorporated herein by reference.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) Not applicable.

(b) Not applicable.

(c) The following table sets forth information regarding the Company’s repurchases of its common stock during the three months ended March 31, 2022:

	Issuer Purchases of Equity Securities
	Total Number of Shares Purchased (1)	Average Price Paid Per Share (2)		Total Number of Shares Purchased as Part of Publicly Announced Plan or Program (3)	Maximum Number of Shares (or Approximate Dollar Value) That May Yet Be Purchased Under the Plan or Program (3)
Period
January 1 to January 31, 2022	591	$	78.53	591	$	139,953,590
February 1 to February 28, 2022	33,264	$	81.47	23,233	$	138,098,158
March 1 to March 31, 2022	2,510	$	82.77	—	$	138,098,158
Total	36,365	$	81.51	23,824

(1)Of these shares, 23,824 shares were purchased under the Company's share repurchase program and 10,031,shares and 2,510 shares were surrendered in February 2022 and March 2022, respectively, in connection with the exercise and/or vesting of equity compensation grants to satisfy related tax withholding obligations.

(2)During the three months ended March 31, 2022, the average price per share of repurchased shares was $79.83 and the average price of surrendered shares related to tax withholding obligations was $84.71.

(3)On January 20, 2022, the Company announced that its Board of Directors authorized a share repurchase program of up to $140 million in shares of the Company's common stock. The program is scheduled to expire on January 18, 2023 and may be modified, suspended or discontinued without prior notice at any time.

Item 3. Defaults Upon Senior Securities - None.

Item 4. Mine Safety Disclosures - Not Applicable.

Item 5. Other Information - None.

84

Item 6. Exhibits

Exhibit Index

No. Exhibit

10.1	Form of Chief executive Officer Time Vesting Restricted Stock Agreement, adopted in February 2022, incorporated herein by reference to Exhibit 10.19 to the Form 10-K for the year ended December 31, 2021, filed on February 28, 2022.
10.2	Form of Executive Officer Time Vesting Restricted Stock Agreement, adopted in February 2022, incorporated herein by reference to Exhibit 10.20 to the Form 10-K for the year ended December 31, 2021, filed on February 28, 2022.
31.1	Section 302 Certification of Sarbanes-Oxley Act of 2002 is attached hereto.*
31.2	Section 302 Certification of Sarbanes-Oxley Act of 2002 is attached hereto.*
32.1	Section 906 Certification of Sarbanes-Oxley Act of 2002 is attached hereto.+
32.2	Section 906 Certification of Sarbanes-Oxley Act of 2002 is attached hereto.+
101	The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.*
104	Cover page interactive data file (formatted as inline XBRL and contained in Exhibit 101).*

* Filed herewith

+ Furnished herewith

85

SIGNATURES

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

INDEPENDENT BANK CORP.

(registrant)

May 5, 2022	/s/ Christopher Oddleifson
	Christopher Oddleifson President and Chief Executive Officer (Principal Executive Officer)

May 5, 2022	/s/ Mark J. Ruggiero
	Mark J. Ruggiero Chief Financial Officer (Principal Financial Officer)

86

EX-31.1

Exhibit 31.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

PURSUANT TO RULE 13A-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Christopher Oddleifson, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Independent Bank Corp.;

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

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

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

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

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

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

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

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

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

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

Date: May 5, 2022

/s/ CHRISTOPHER ODDLEIFSON

Christopher Oddleifson

Chief Executive Officer/President

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER

PURSUANT TO RULE 13A-14 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Mark J. Ruggiero, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Independent Bank Corp.;

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

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

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

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

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

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

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

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

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

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

Date: May 5, 2022

/s/  MARK J. RUGGIERO

Mark J. Ruggiero

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Independent Bank Corp. (the “Company”) on Form 10-Q for the period ended March 31, 2022, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the undersigned’s best knowledge and belief:

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

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

Dated: May 5, 2022

Independent Bank Corp.

(“Company”)

/s/ CHRISTOPHER ODDLEIFSON

Christopher Oddleifson

Chief Executive Officer/President

A signed original of this written statement required by Section 906 has been provided to Independent Bank Corp. and will be retained by Independent Bank Corp. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Independent Bank Corp. (the “Company”) on Form 10-Q for the period ended March 31, 2022, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the undersigned’s best knowledge and belief:

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

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

Dated: May 5, 2022

Independent Bank Corp.

(“Company”)

/s/  MARK J. RUGGIERO

Mark J. Ruggiero

Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Independent Bank Corp. and will be retained by Independent Bank Corp. and furnished to the Securities and Exchange Commission or its staff upon request.

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Entity Information [Line Items]
Entity Address, Address Line One	288 Union Street,
Entity Address, City or Town	Rockland,
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02370

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Consolidated Balance Sheets (Unaudited) - USD ($)		Mar. 31, 2022		Dec. 31, 2021
Assets
Cash and due from banks		$ 173,779,000		$ 141,581,000
Interest-earning deposits with banks		1,666,580,000		2,099,103,000
Securities
Trading		3,956,000		3,720,000
Equity Securities, FV-NI		22,611,000		23,173,000
Debt Securities, Available-for-sale		1,552,731,000		1,571,148,000
Held to maturity (fair value $1,210,938 and $1,064,133)		1,282,441,000		1,066,818,000
Total securities		2,861,739,000		2,664,859,000
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group		6,144,000		24,679,000
Loans
Total loans		13,580,027,000	[1]	13,587,286,000
Less: allowance for credit losses		(144,518,000)		(146,922,000)
Net loans		13,435,509,000		13,440,364,000
Federal Home Loan Bank stock		11,407,000		11,407,000
Bank premises and equipment, net		199,106,000		195,590,000
Goodwill		985,072,000		985,072,000
Other intangible assets		30,759,000		32,772,000
Cash surrender value of life insurance policies		291,192,000		289,304,000
Other assets		497,891,000		538,674,000
Total assets		20,159,178,000		20,423,405,000
Deposits
Noninterest-bearing demand deposits		5,537,156,000		5,479,503,000
Savings and interest checking accounts		6,247,806,000		6,350,016,000
Money market		3,579,820,000		3,556,375,000
Interest-bearing Domestic Deposit, Time Deposits		1,398,610,000		1,531,150,000
Total deposits		16,763,392,000		16,917,044,000
Borrowings
Federal Home Loan Bank borrowings		25,660,000		25,667,000
Long-term Debt		0		14,063,000
Junior Subordinated Notes		62,854,000		62,853,000
Subordinated Debt		49,814,000		49,791,000
Total borrowings		138,328,000		152,374,000
Other liabilities		292,019,000		335,538,000
Total liabilities		17,193,739,000		17,404,956,000
Commitments and contingencies		0		0
Stockholders' equity
Preferred stock, $0.01 par value, authorized: 1,000,000 shares, outstanding: none		0		0
Common stock, $0.01 par value, authorized: 75,000,000 shares, issued and outstanding: 47,377,125 shares at March 31, 2022 and 47,349,778 shares at December 31, 2021 (includes 144,733 and 135,273 shares of unvested participating restricted stock awards, respectively)		472,000		472,000
Value of shares held in rabbi trust at cost: 82,223 shares at March 31, 2022 and 82,565 shares at December 31, 2021		(3,179,000)		(3,146,000)
Deferred compensation and other retirement benefit obligations		3,179,000		3,146,000
Additional paid in capital		2,247,518,000		2,249,078,000
Retained earnings		795,651,000		766,716,000
Accumulated other comprehensive income (loss), net of tax		(78,202,000)		2,183,000
Total stockholders’ equity		2,965,439,000		3,018,449,000
Total liabilities and stockholders' equity		20,159,178,000		20,423,405,000
Debt Securities, Available-for-sale, Amortized Cost		1,646,938,000		1,583,736,000
Debt Securities, Held-to-maturity, Fair Value		$ 1,210,938,000		$ 1,064,133,000
Preferred Stock, Shares Authorized		$ 0.01		$ 0.01
Preferred Stock, Shares Authorized		1,000,000		1,000,000
Preferred Stock, Shares Outstanding		0		0
Common Stock, Par or Stated Value Per Share		$ 0.01		$ 0.01
Common Stock, Shares Authorized		75,000,000		75,000,000
Common Stock, Shares, Issued		47,377,125		47,349,778
Common Stock, Shares, Outstanding		47,377,125		47,349,778
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number		144,733		135,273
Shares Held in Rabbi Trust at Cost		82,223		82,565
Common Class A [Member]
Stockholders' equity
Common Stock, Shares, Outstanding		47,377,125		47,349,778
Subordinated Debt [Member]
Stockholders' equity
Unamortized Debt Issuance Expense		$ 186,000		$ 209,000
Junior Subordinated Debt [Member]
Stockholders' equity
Unamortized Debt Issuance Expense		34,000		35,000
Commercial And Industrial [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		1,566,192,000		1,563,279,000
Total loans		1,566,192,000	[1]	1,563,279,000
Commercial Real Estate [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		7,897,616,000		7,992,344,000
Total loans		7,897,616,000	[1]	7,992,344,000
Construction Loans [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		1,153,945,000		1,165,457,000
Total loans		1,153,945,000	[1]	1,165,457,000
Small Business [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		200,405,000		193,189,000
Total loans		200,405,000	[1]	193,189,000
Residential Real Estate [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		1,706,045,000		1,604,686,000
Total loans		1,706,045,000	[1]	1,604,686,000
Home Equity Loan [Member]
Loans
Total loans	[1]	1,025,815,000
Consumer Portfolio Segment [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		30,009,000		28,720,000
Total loans	[2]	30,009,000		28,720,000
Senior Lien [Member] | Home Equity Loan [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		577,881,000		589,550,000
Junior Lien [Member] | Home Equity Loan [Member]
Loans
Financing Receivable, before Allowance for Credit Loss		$ 447,934,000		$ 450,061,000

[1] Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

[2] Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Held to Maturity, Fair Value, Total	$ 1,210,938	$ 1,064,133
Debt Securities, Available-for-sale, Amortized Cost	$ 1,646,938	$ 1,583,736
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, shares outstanding	0	0
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	75,000,000	75,000,000
Common Stock, Shares, Outstanding	47,377,125	47,349,778
Common Stock, unvested restricted Stock awards	144,733	135,273
Shares Held in Rabbi Trust	82,223	82,565
Common Stock Outstanding
Common Stock, Shares, Outstanding	47,377,125	47,349,778
Subordinated Debt [Member]
Unamortized Debt Issuance Expense	$ 186	$ 209

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Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Interest income
Interest and fees on loans	$ 129,625	$ 92,383
Interest Income, Securities, Operating, Taxable	10,043	6,627
Nontaxable interest and dividends on securities	1	5
Interest on loans held for sale	64	296
Interest on federal funds sold and short-term investments	886	326
Total interest and dividend income	140,619	99,637
Interest expense
Interest on deposits	2,107	2,711
Interest on borrowings	1,080	1,342
Total interest expense	3,187	4,053
Net interest income	137,432	95,584
(Release of) provision for credit losses	(2,000)	(2,500)
Net interest income after provision for credit losses	139,432	98,084
Noninterest income
Deposit account fees	5,493	3,584
Interchange and ATM fees	3,609	2,720
Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions	8,673	8,304
Mortgage banking income	1,362	5,740
Bank Owned Life Insurance Income	1,795	1,323
Gain Realized on Life Insurance Policies	0	(258)
Loan level derivative income	604	173
Other noninterest income	4,736	3,144
Total noninterest income	26,272	25,246
Noninterest expenses
Salaries and employee benefits	48,711	39,889
Occupancy and equipment expenses	13,302	9,273
Data processing & facilities management	2,372	1,665
Business Combination, Acquisition Related Costs	7,100	0
Software Maintenance	2,564	1,970
Amortization of Intangible Assets	2,001	1,413
FDIC assessment	1,805	1,050
Debit card expense	1,765	1,181
Professional Fees	1,750	2,391
Other noninterest expenses	14,130	10,850
Total noninterest expenses	95,500	69,682
Income before income taxes	70,204	53,648
Current Federal, State and Local, Tax Expense (Benefit)	17,107	11,937
Net income	$ 53,097	$ 41,711
Basic earnings per share (in dollars per share)	$ 1.12	$ 1.26
Diluted earnings per share (in dollars per share)	$ 1.12	$ 1.26
Weighted average common shares (basic) (in shares)	47,366,753	32,995,332
Common shares equivalents (in shares)	20,711	30,098
Weighted average common shares (diluted) (in shares)	47,387,464	33,025,430
Retained Earnings [Member]
Noninterest expenses
Net income	$ 53,097	$ 41,711
Cash dividends declared per common share (in dollars per share)	$ 0.51	$ 0.48

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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income		$ 53,097	$ 41,711
Other comprehensive income (loss), net of tax
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax		(62,556)	(7,774)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax		(17,950)	(6,583)
Net change in other comprehensive income for defined benefit postretirement plans	[1]	121	819
Total other comprehensive income (loss)		(80,385)	(13,538)
Total comprehensive income (loss)		$ (27,288)	$ 28,173

[1] The amortization of prior service costs is included in the computation of net periodic pension cost as disclosed in Note 14 "Employee Benefit Plans" within the Notes to the Consolidated Financial Statements included in Item 8 of the Company's 2021 Form 10-K.

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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock Outstanding	Common Stock	Value of Shares Held in Rabbi Trust at Cost	Deferred Compensation and Other Retirement Benefit Obligations	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Outstanding		32,965,692
Net income	$ 41,711						$ 41,711
Other comprehensive income	(13,538)							$ (13,538)
Cash dividends declared per common share (in dollars per share)							$ 0.48
Common dividend declared	(15,852)						$ (15,852)
Proceeds from exercise of stock options, net of cash paid		4,744
Proceeds from exercise of stock options, net of cash paid			$ 0
Stock Repurchased During Period, Value, as a result of Stock Options Exercised	(57)					$ (57)
Stock based compensation	1,150					1,150
Restricted stock awards issued, net of awards surrendered		48,106
Restricted stock awards issued, net of awards surrendered	(1,220)		1			(1,221)
Shares issued under direct stock purchase plan		6,340
Shares issued under direct stock purchase plan	492		0			492
Increase (Decrease) in Deferred Compensation and Other Retirement Benefits				$ (14)	$ 14
Increase (Decrease) in Deferred Compensation	0
Period End Balance at Mar. 31, 2021	$ 1,715,371		329	(3,080)	3,080	946,002	741,883	27,157
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Outstanding		33,024,882
Common Stock, Shares, Outstanding	47,349,778	47,349,778
Net income	$ 53,097						$ 53,097
Other comprehensive income	(80,385)							(80,385)
Cash dividends declared per common share (in dollars per share)							$ 0.51
Common dividend declared	(24,162)						$ (24,162)
Stock based compensation	834					834
Restricted stock awards issued, net of awards surrendered		44,569
Restricted stock awards issued, net of awards surrendered	(1,063)					(1,063)
Shares issued under direct stock purchase plan		6,602
Shares issued under direct stock purchase plan	571					571
Stock Repurchased During Period, Shares		(23,824)
Stock Repurchased During Period, Value	(1,902)					(1,902)
Increase (Decrease) in Deferred Compensation and Other Retirement Benefits				(33)	33
Increase (Decrease) in Deferred Compensation	0
Period End Balance at Mar. 31, 2022	$ 2,965,439		$ 472	$ (3,179)	$ 3,179	$ 2,247,518	$ 795,651	$ (78,202)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Shares, Outstanding	47,377,125	47,377,125

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Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Common Stock, Shares, Outstanding	47,377,125		47,349,778
Stockholders' Equity Attributable to Parent	$ 2,965,439	$ 1,715,371	$ 3,018,449	$ 1,702,685
Held In Rabbi Trust At Cost [Member]
Stockholders' Equity Attributable to Parent	$ (3,179)	$ (3,080)	(3,146)	(3,066)
Retained Earnings
Cash dividends declared per common share (in dollars per share)	$ 0.51	$ 0.48
Stockholders' Equity Attributable to Parent	$ 795,651	$ 741,883	766,716	716,024
Deferred Compensation, Share-based Payments [Member]
Stockholders' Equity Attributable to Parent	3,179	3,080	3,146	3,066
AOCI Attributable to Parent [Member]
Stockholders' Equity Attributable to Parent	(78,202)	27,157	2,183	40,695
Common Stock [Member]
Stockholders' Equity Attributable to Parent	472	329	472	328
Additional Paid-in Capital [Member]
Stockholders' Equity Attributable to Parent	$ 2,247,518	$ 946,002	$ 2,249,078	$ 945,638
Common Class A [Member]
Common Stock, Shares, Outstanding	47,377,125	33,024,882	47,349,778	32,965,692

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Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 53,097,000	$ 41,711,000
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	10,119,000	8,228,000
Change In Unamortized Net Loan Costs And Premiums	(3,666,000)	(8,594,000)
Accretion of acquired loans	(84,000)	(1,724,000)
(Release of) provision for credit losses	(2,000,000)	(2,500,000)
Deferred income tax expense	643,000	567,000
Net unrealized (gain) loss on equity securities	627,000	(316,000)
Gain (Loss) on Disposition of Property Plant Equipment	406,000	4,000
Sale and Leaseback Transaction, Gain (Loss), Net	145,000	145,000
Stock based compensation	834,000	1,150,000
Increase in cash surrender value of life insurance policies	(1,795,000)	(1,323,000)
Gain Realized on Life Insurance Policies	0	(258,000)
Operating Lease, Payments	(9,030,000)	(3,077,000)
Change in Fair Value on Loans Held for Sale	548,000	1,764,000
Net change in:
Trading assets	(236,000)	(431,000)
Loans held for sale	17,987,000	14,708,000
Other assets	46,805,000	70,901,000
Increase (Decrease) in Other Operating Liabilities	(38,582,000)	(53,201,000)
Total adjustments	22,431,000	25,753,000
Net cash provided by operating activities	75,528,000	67,464,000
Cash flows used in investing activities
Increase (Decrease) in Equity Securities, FV-NI	(184,000)	(124,000)
Proceeds from maturities and principal repayments of securities available for sale	34,927,000	26,092,000
Payments to Acquire Debt Securities, Available-for-sale	(98,246,000)	(223,986,000)
Proceeds from maturities and principal repayments of securities held to maturity	51,072,000	68,497,000
Purchases of securities held to maturity	(266,972,000)	(149,453,000)
Investments in low income housing projects	(6,405,000)	(6,632,000)
Purchases of life insurance policies	(93,000)	(40,093,000)
Proceeds from Life Insurance Policy	0	576,000
Net decrease in loans	10,605,000	153,150,000
Purchases of bank premises and equipment	(8,335,000)	(2,524,000)
Proceeds from the sale of bank premises and equipment		4,000
Net cash used in investing activities	(283,631,000)	(174,493,000)
Cash flows provided by (used in) financing activities
Net decrease in time deposits	(131,925,000)	(82,569,000)
Net increase (decrease) in other deposits	(21,112,000)	682,938,000
Repayments of Debt	(14,063,000)	(4,688,000)
Net Purchases from Stock Options Exercised	0	(57,000)
Restricted stock awards issued, net of awards surrendered	(1,063,000)	(1,220,000)
Proceeds from shares issued under direct stock purchase plan	571,000	492,000
Payments for shares repurchased under share repurchase program	(1,902,000)	0
Common dividends paid	(22,728,000)	(15,164,000)
Net cash provided by (used in) financing activities	(192,222,000)	579,732,000
Net increase (decrease) in cash and cash equivalents	(400,325,000)	472,703,000
Cash and cash equivalents at beginning of year	2,240,684,000	1,296,636,000
Cash and cash equivalents at end of period	1,840,359,000	1,769,339,000
Supplemental schedule of noncash activities
Net increase (decrease) in capital commitments relating to low income housing project investments	(718,000)	24,014,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 1,549,000	$ 0

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Investments is Low Income Housing Tax Credits Investments in Low Income Housing Tax Credits

3 Months Ended

Mar. 31, 2022

Equity Method Investments and Joint Ventures [Abstract]

Investments in Low Income Housing Projects [Text Block]

LOW INCOME HOUSING PROJECT INVESTMENTS

The Company has invested in low income housing projects that generate Low Income Housing Tax Credits (“LIHTC”) which provide the Company with tax credits and operating loss tax benefits over a period of approximately 15 years. None of the original investment is expected to be repaid.

The following table presents certain information related to the Company's investments in low income housing projects as of the dates indicated:

	March 31 2022			December 31 2021
	(Dollars in thousands)
Original investment value	$	178,763		$	179,481
Current recorded investment	131,034			135,497
Unfunded liability obligation	66,213			73,336
Tax credits and benefits	18,838		(1)	14,198
Amortization of investments	15,249		(1)	11,892
Net income tax benefit	3,589		(1)	2,306

(1)Amounts shown represent the estimated full year impact for the year ended December 31, 2022.

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Investments is Low Income Housing Tax Credits Investments in Low Income Housing Tax Credits - Tables

3 Months Ended

Mar. 31, 2022

Equity Method Investments and Joint Ventures [Abstract]

Investments in Low Income Housing Projects [Table Text Block]

The following table presents certain information related to the Company's investments in low income housing projects as of the dates indicated:

	March 31 2022			December 31 2021
	(Dollars in thousands)
Original investment value	$	178,763		$	179,481
Current recorded investment	131,034			135,497
Unfunded liability obligation	66,213			73,336
Tax credits and benefits	18,838		(1)	14,198
Amortization of investments	15,249		(1)	11,892
Net income tax benefit	3,589		(1)	2,306

(1)Amounts shown represent the estimated full year impact for the year ended December 31, 2022.

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Investments is Low Income Housing Tax Credits Investments in Qualified Affordable Housing Projects - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022		Jun. 30, 2021	Dec. 31, 2021
Investments in Affordable Housing Projects [Abstract]
Original investment value	$ 178,763			$ 179,481
Amortization Method Qualified Affordable Housing Project Investments	131,034			135,497
Capital commitment relating to low income housing project investments	66,213			$ 73,336
Tax credits and benefits	18,838	[1]	$ 14,198
Amortization of investments	15,249	[1]	11,892
Net income tax benefit	3,589	[1]	$ 2,306
Interest Receivable	$ 39,400

[1] Amounts shown represent the estimated full year impact for the year ended December 31, 2022.

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Basis of Presentation

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

Independent Bank Corp. (the “Company”) is a state chartered, federally registered bank holding company, incorporated in 1985. The Company is the sole stockholder of Rockland Trust Company (“Rockland Trust” or the “Bank”), a Massachusetts trust company chartered in 1907.

All material intercompany balances and transactions have been eliminated in consolidation. Certain previously reported amounts have been reclassified to conform to the current year’s presentation.

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation of the financial statements, primarily consisting of normal recurring adjustments, have been included. Results for the three months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022 or any other interim period.

For further information, refer to the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (the "2021 Form 10-K").

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Recent Accounting Standards

3 Months Ended

Mar. 31, 2022

Recent Accounting Standards [Abstract]

RECENT ACCOUNTING STANDARDS

RECENT ACCOUNTING STANDARDS UPDATES

    Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 848 "Reference Rate Reform" Update No. 2020-04. Update No. 2020-04 was issued in March 2020 to provide optional expedients and exceptions for applying GAAP to certain contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this update apply only to contracts, hedging relationships, and other transactions that reference the London Interbank Offered Rate ("LIBOR") or another reference rate expected to be discontinued because of reference rate reform. The amendments will not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022 for which an entity has elected certain optional expedients that are retained through the end of the hedging relationship. The amendments in this update are effective for all entities as of March 12, 2020 through December 31, 2022 and do not apply to contract modifications made after December 31, 2022. FASB ASC Topic 848 "Reference Rate Reform" Update No. 2021-01 was subsequently issued in January 2021 and expanded application of the optional expedients to derivative transactions affected by the discounting transition. The Company has not yet adopted the amendments in these updates, but has established a working group to guide the Company’s transition from LIBOR and has begun efforts to transition off the LIBOR index consistent with industry timelines. The working group has identified its products that utilize LIBOR and has implemented fallback language to facilitate the transition to alternative rates. The Company is also evaluating existing platforms and systems as well as alternative indices in its preparation to offer new products tied to the alternative indices. The Company does not anticipate that the adoption of these updates will have a material impact on the Company's financial statements.

FASB ASC Topic 260 "Earnings Per Share" Update No. 2020-06. In August 2020, the FASB issued update No. 2020-06 ("ASU 2020-06"). ASU 2020-06 included amendments to ASC 260 related to the earnings per share calculation, which were designed to simplify and improve consistency of the diluted earnings per share calculation. ASU 2020-06 is effective for public entities for annual periods beginning after December 15, 2021 and interim periods therein. Accordingly, the Company adopted ASU 2020-06 effective January 1, 2022 and the adoption did not have a material impact on the Company's financial statements.

FASB ASC Topic 815 "Derivatives and Hedging" Update No. 2022-01. Update No. 2022-01 was issued in March 2022 and its amendments allow for nonprepayable financial assets to also be included in a closed portfolio hedged using the portfolio layer method. The expanded scope permits an entity to apply the same portfolio hedging method to both prepayable and nonprepayable financial assets resulting in more consistent accounting for similar hedges. All amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The Company is currently assessing the impact of the adoption of this standard on the Company's financial statements.

FASB ASC Topic 326 "Financial Instruments - Credit Losses" Update No. 2022-02. Update No. 2022-02 was issued in March 2022 and applies to public entities that have adopted ASU Topic 326. The amendments in this update eliminate the existing accounting guidance for troubled debt restructures ("TDRs") by creditors in Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors and instead requires that an entity evaluate whether a modification

represents a new loan or a continuation of an existing loan. The amendments also enhance disclosure requirements for certain loans refinancing and restructuring by creditors when a borrower is experiencing financial difficulty. ASU 2022-02 also requires additional disclosure of current period gross write-offs by year of origination for financing receivables to be included in the entity's vintage disclosure, as currently required under Topic 326. All amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. The Company is currently assessing the impact of the adoption of this standard on the Company's financial statements.

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Securities

3 Months Ended

Mar. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure

SECURITIES

Trading Securities

The Company had trading securities of $4.0 million and $3.7 million as of March 31, 2022 and December 31, 2021, respectively. These securities are held in a rabbi trust and will be used for future payments associated with the Company’s non-qualified 401(k) Restoration Plan and Non-qualified Deferred Compensation Plan.

Equity Securities

The Company had equity securities of $22.6 million and $23.2 million as of March 31, 2022 and December 31, 2021, respectively. These securities consist primarily of mutual funds held in a rabbi trust and will be used for future payments associated with the Company’s supplemental executive retirement plans.

The following table represents a summary of the gains and losses recognized within non-interest income and non-interest expense within the consolidated statements of income that relate to equity securities for the periods indicated:

	Three Months Ended
	March 31
	2022		2021
	Dollars in thousands
Net gains (losses) recognized during the period on equity securities	$	(627)	$	316
Less: net gains recognized during the period on equity securities sold during the period	4		29
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date	$	(631)	$	287

Available for Sale Securities

The following table summarizes the amortized cost, allowance for credit losses, and fair value of available for sale securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:

	March 31, 2022										December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	231,485	$	44	$	(15,594)	$	—	$	215,935	$	217,393	$	990	$	(2,901)	$	—	$	215,482
U.S. treasury securities	873,608		—		(51,275)		—		822,333		873,467		172		(12,191)		—		861,448
Agency mortgage-backed securities	421,751		670		(24,436)		—		397,985		364,955		4,512		(5,534)		—		363,933
Agency collateralized mortgage obligations	49,759		39		(796)		—		49,002		78,966		1,282		(571)		—		79,677
State, county, and municipal securities	192		8		—		—		200		192		11		—		—		203
Single issuer trust preferred securities issued by banks	489		—		—		—		489		489		2		—		—		491
Pooled trust preferred securities issued by banks and insurers	1,199		—		(200)		—		999		1,199		—		(199)		—		1,000
Small business administration pooled securities	68,455		48		(2,715)		—		65,788		47,075		1,839		—		—		48,914
Total available for sale securities	$	1,646,938	$	809	$	(95,016)	$	—	$	1,552,731	$	1,583,736	$	8,808	$	(21,396)	$	—	$	1,571,148

Excluded from the table above is accrued interest on available for sale securities of $3.4 million and $3.0 million as of March 31, 2022 and December 31, 2021, respectively, which is included within other assets on the consolidated balance sheets. Additionally, the Company did not record any write-offs of accrued interest income on available for sale securities during the three months ended March 31, 2022 and 2021. Furthermore, no securities held by the Company were delinquent on contractual payments nor were any securities placed on non-accrual status as of March 31, 2022 and December 31, 2021.

When securities are sold, the adjusted cost of the specific security sold is used to compute the gain or loss on the sale. The Company had no sales of securities available for sale during the three months ended March 31, 2022 and 2021, and therefore no gains or losses were realized during the periods presented.

The following tables show the gross unrealized losses and fair value of the Company’s available for sale securities in an unrealized loss position, and for which the Company has not recorded a provision for credit losses, as of the dated indicated. These available for sale securities are aggregated by major security type and length of time that individual securities have been in a continuous unrealized loss position:

	March 31, 2022
		Less than 12 months				12 months or longer				Total
	# of  holdings	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
U.S. government agency securities	8	$	180,613	$	(13,459)	$	22,798	$	(2,135)	$	203,411	$	(15,594)
U.S. treasury securities	18	822,333		(51,275)		—		—		822,333		(51,275)
Agency mortgage-backed securities	73	242,172		(13,870)		88,670		(10,566)		330,842		(24,436)
Agency collateralized mortgage obligations	10	45,455		(796)		—		—		45,455		(796)
Pooled trust preferred securities issued by banks and insurers	1	—		—		999		(200)		999		(200)
Small business administration pooled securities	7	60,416		(2,715)		—		—		60,416		(2,715)
Total impaired available for sale securities	117	$	1,350,989	$	(82,115)	$	112,467	$	(12,901)	$	1,463,456	$	(95,016)
	December 31, 2021
		Less than 12 months				12 months or longer				Total
	# of  holdings	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
U.S. government agency securities	6	$	160,913	$	(2,901)	$	—	$	—	$	160,913	$	(2,901)
U.S. treasury securities	17	811,993		(12,191)		—		—		811,993		(12,191)
Agency mortgage-backed securities	12	214,678		(5,534)		—		—		214,678		(5,534)
Agency collateralized mortgage obligations	1	22,960		(571)		—		—		22,960		(571)
Pooled trust preferred securities issued by banks and insurers	1	—		—		1,000		(199)		1,000		(199)
Total impaired available for sale securities	37	$	1,210,544	$	(21,197)	$	1,000	$	(199)	$	1,211,544	$	(21,396)

The Company does not intend to sell these investments and has determined, based upon available evidence, that it is more likely than not that the Company will not be required to sell each security before the recovery of its amortized cost basis. In addition, management does not believe that any of the securities are impaired due to reasons of credit quality. As a result, the Company did not recognize a provision for credit losses on these investments during the three months ended March 31, 2022 and 2021. The Company made this determination by reviewing various qualitative and quantitative factors regarding each investment category, such as current market conditions, extent and nature of changes in fair value, issuer rating changes and trends, volatility of earnings, and current analysts’ evaluations.

As a result of the Company’s review of these qualitative and quantitative factors, the causes of the impairments listed in the table above by category were as follows at March 31, 2022:

•U.S. Government Agency Securities, U.S. Treasury Securities, Agency Mortgage-Backed Securities, Agency Collateralized Mortgage Obligations and Small Business Administration Pooled Securities: These portfolios have contractual terms that generally do not permit the issuer to settle the securities at a price less than the current par value of the investment. The decline in market value of these securities is attributable to changes in interest rates and not credit quality. Additionally, these securities are implicitly guaranteed by the U.S. Government or one of its agencies.

•Pooled Trust Preferred Securities: This portfolio consists of one below investment grade security which is performing. The unrealized loss on this security is attributable to the illiquid nature of the trust preferred market in the current economic and regulatory environment. Management evaluates collateral credit and instrument structure, including current and expected deferral and default rates and timing. In addition, discount rates are determined by evaluating comparable spreads observed currently in the market for similar instruments.

Held to Maturity Securities

The following table summarizes the amortized cost, fair value and allowance for credit losses of held to maturity securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:

	March 31, 2022										December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value
	(Dollars in thousands)
U.S. government agency securities	$	32,555	$	—	$	(1,574)	$	—	$	30,981	$	32,987	$	—	$	(441)	$	—	$	32,546
U.S. treasury securities	100,576		—		(5,980)		—		94,596		102,560		6		(324)		—		102,242
Agency mortgage-backed securities	550,333		843		(29,993)		—		521,183		493,012		8,495		(4,271)		—		497,236
Agency collateralized mortgage obligations	576,964		189		(34,587)		—		542,566		415,736		3,232		(10,123)		—		408,845
Single issuer trust preferred securities issued by banks	1,500		8		—		—		1,508		1,500		8		—		—		1,508
Small business administration pooled securities	20,513		—		(409)		—		20,104		21,023		733		—		—		21,756
Total held to maturity securities	$	1,282,441	$	1,040	$	(72,543)	$	—	$	1,210,938	$	1,066,818	$	12,474	$	(15,159)	$	—	$	1,064,133

Substantially all held to maturity securities held by the Company are guaranteed by the U.S. federal government or other government sponsored agencies and have a long history of no credit losses. As a result, management has determined these securities to have a zero loss expectation and therefore the Company did not record a provision for estimated credit losses on any held to maturity securities during the three months ended March 31, 2022 and 2021. Excluded from the table above is accrued interest on held to maturity securities of $2.6 million and $2.0 million as of March 31, 2022 and December 31, 2021, respectively, which is included within other assets on the consolidated balance sheets. Additionally, the Company did not record any write-offs of accrued interest income on held to maturity securities during the three months ended March 31, 2022 and 2021. Furthermore, no securities held by the Company were delinquent on contractual payments nor were any securities placed on non-accrual status as of March 31, 2022 and December 31, 2021.

When securities are sold, the adjusted cost of the specific security sold is used to compute the gain or loss on the sale. The Company had no sales of held to maturity securities during the three months ended March 31, 2022 and 2021, and therefore no gains or losses were realized during the periods presented.

The Company monitors the credit quality of held to maturity securities through the use of credit ratings. Credit ratings are monitored by the Company on at least a quarterly basis. As of March 31, 2022, all held to maturity securities held by the Company were rated investment grade or higher.

The actual maturities of certain available for sale or held to maturity securities may differ from the contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. A schedule of the contractual maturities of available for sale and held to maturity securities as of March 31, 2022 is presented below:

	Due in one year or less				Due after one year to five years				Due after five to ten years				Due after ten years				Total
	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	—	$	—	$	68,071	$	64,776	$	163,414	$	151,159	$	—	$	—	$	231,485	$	215,935
U.S. treasury securities	—		—		643,018		607,500		230,590		214,833		—		—		873,608		822,333
Agency mortgage-backed securities	19,824		19,844		80,449		78,736		158,349		144,812		163,129		154,593		421,751		397,985
Agency collateralized mortgage obligations	—		—		—		—		—		—		49,759		49,002		49,759		49,002
State, county, and municipal securities	—		—		192		200		—		—		—		—		192		200
Single issuer trust preferred securities issued by banks	—		—		—		—		—		—		489		489		489		489
Pooled trust preferred securities issued by banks and insurers	—		—		—		—		—		—		1,199		999		1,199		999
Small business administration pooled securities	—		—		—		—		—		—		68,455		65,788		68,455		65,788
Total available for sale securities	$	19,824	$	19,844	$	791,730	$	751,212	$	552,353	$	510,804	$	283,031	$	270,871	$	1,646,938	$	1,552,731
Held to maturity securities
U.S. government agency securities	$	—	$	—	$	32,555	$	30,981	$	—	$	—	$	—	$	—	$	32,555	$	30,981
U.S. treasury securities	—		—		49,740		46,985		50,836		47,611		—		—		100,576		94,596
Agency mortgage-backed securities	—		—		32,356		32,265		349,842		325,374		168,135		163,544		550,333		521,183
Agency collateralized mortgage obligations	—		—		—		—		34,215		32,252		542,749		510,314		576,964		542,566
Single issuer trust preferred securities issued by banks	—		—		—		—		1,500		1,508		—		—		1,500		1,508
Small business administration pooled securities	—		—		—		—		—		—		20,513		20,104		20,513		20,104
Total held to maturity securities	$	—	$	—	$	114,651	$	110,231	$	436,393	$	406,745	$	731,397	$	693,962	$	1,282,441	$	1,210,938
Total	$	19,824	$	19,844	$	906,381	$	861,443	$	988,746	$	917,549	$	1,014,428	$	964,833	$	2,929,379	$	2,763,669

Included in the table above are $26.2 million of callable securities at March 31, 2022.

The carrying value of securities pledged to secure public funds, trust deposits, and for other purposes, as required or permitted by law, was $778.7 million and $740.6 million at March 31, 2022 and December 31, 2021, respectively.

At March 31, 2022 and December 31, 2021, the Company had no investments in obligations of individual states, counties, or municipalities which exceeded 10% of consolidated stockholders’ equity.

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Loans, Allowance for Credit Losses and Credit Quality (Notes)

3 Months Ended

Mar. 31, 2022

Receivables [Abstract]

Loans, Allowance for Credit Losses and Credit Quality [Text Block]

LOANS, ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY

Loans Held for Investment and Allowance for Credit Losses

The following table summarizes the change in allowance for credit losses by loan category, and bifurcates the amount of loans allocated to each loan category for the period indicated:

	Three Months Ended March 31, 2022
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Small Business		Residential Real Estate		Home  Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	14,402	$	83,486	$	12,316	$	3,508	$	14,484	$	17,986	$	740	$	146,922
Charge-offs	—		—		—		(48)		—		(24)		(634)		(706)
Recoveries	13		3		—		26		—		26		234		302
(Release of) provision for credit losses	(246)		947		(449)		(327)		3,904		(6,238)		409		(2,000)
Ending balance (1)	$	14,169	$	84,436	$	11,867	$	3,159	$	18,388	$	11,750	$	749	$	144,518
	Three Months Ended March 31, 2021
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Small Business		Residential Real Estate		Home  Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	21,086	$	45,009	$	5,397	$	5,095	$	14,275	$	22,060	$	470	$	113,392
Charge-offs	(3,331)		—		—		(66)		—		—		(289)		(3,686)
Recoveries	64		57		—		11		1		13		197		343
(Release of) provision for credit losses	2,388		(718)		(129)		(1,419)		(1,320)		(1,357)		55		(2,500)
Ending balance (1)	$	20,207	$	44,348	$	5,268	$	3,621	$	12,956	$	20,716	$	433	$	107,549

(1)Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.4 million and $33.4 million as of March 31, 2022 and March 31, 2021, respectively.

The balance of allowance for credit losses of $144.5 million as of March 31, 2022 represents a decrease of $2.4 million, or 1.6%, compared to December 31, 2021. The decrease in the allowance was primarily driven by a release of the provision for credit losses of $2.0 million recorded during the quarter, reflecting a stabilized credit quality environment.

For the purpose of estimating the allowance for credit losses, management segregated the loan portfolio into the portfolio segments detailed in the above tables.  Each of these loan categories possesses unique risk characteristics that are considered when determining the appropriate level of allowance for each segment.  Some of the characteristics unique to each loan category include:

Commercial Portfolio

•Commercial and Industrial: Loans in this category consist of revolving and term loan obligations extended to business and corporate enterprises for the purpose of financing working capital and/or capital investment.  Collateral generally consists of pledges of business assets including, but not limited to: accounts receivable, inventory, plant and equipment, or real estate, if applicable. Repayment sources consist of primarily, operating cash flow, and secondarily, liquidation of assets.

•Commercial Real Estate: Loans in this category consist of mortgage loans to finance investment in real property such as multi-family residential, commercial/retail, office, industrial, hotels, educational and healthcare facilities and other specific use properties.  Loans are typically written with amortizing payment structures.  Collateral values are determined based upon third party appraisals and evaluations.  Loan to value ratios at origination are governed by established policy and regulatory guidelines. Repayment sources consist of, primarily, cash flow from operating leases and rents and, secondarily, liquidation of assets.

•Commercial Construction: Loans in this category consist of short-term construction loans, revolving and nonrevolving credit lines and construction/permanent loans to finance the acquisition, development and construction or rehabilitation of

real property.  Project types include residential land development, one-to-four family, condominium, and multi-family home construction, commercial/retail, office, industrial, hotels, educational and healthcare facilities and other specific use properties.  Loans may be written with nonamortizing or hybrid payment structures depending upon the type of project.  Collateral values are determined based upon third party appraisals and evaluations.  Loan to value ratios at origination are governed by established policy and regulatory guidelines.  Repayment sources vary depending upon the type of project and may consist of sale or lease of units, operating cash flows or liquidation of other assets.

•Small Business: Loans in this category consist of revolving, term loan and mortgage obligations extended to sole proprietors and small businesses for purposes of financing working capital and/or capital investment.  Collateral generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, or real estate if applicable.  Repayment sources consist primarily of operating cash flows and, secondarily, liquidation of assets.

For the commercial portfolio it is the Company’s policy to obtain personal guarantees for payment from individuals holding material ownership interests in the borrowing entities.

Consumer Portfolio

•Residential Real Estate: Residential mortgage loans held in the Company’s portfolio are made to borrowers who demonstrate the ability to make scheduled payments with full consideration to underwriting factors such as current and expected income, employment status, current assets, other financial resources, credit history and the value of the collateral.  Collateral consists of mortgage liens on one-to-four family residential properties.  Residential mortgage loans also include loans to construct owner-occupied one-to-four family residential properties.

•Home Equity: Home equity loans and credit lines are made to qualified individuals and are primarily secured by senior or junior mortgage liens on owner-occupied one-to-four family homes, condominiums or vacation homes. Each home equity loan has a fixed rate and is billed in equal payments comprised of principal and interest. The majority of home equity lines of credit have a variable rate and are billed in interest-only payments during the draw period. At the end of the draw period, the home equity line of credit is billed as a percentage of the then outstanding principal balance plus all accrued interest over a predetermined repayment period, as set forth in the note. Additionally, the Company has the option of renewing each line of credit for additional draw periods.  Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan to value ratios within established policy guidelines.

•Other Consumer: Other consumer loan products include personal lines of credit and amortizing loans made to qualified individuals for various purposes such as debt consolidation, personal expenses or overdraft protection.  Borrower qualifications include favorable credit history combined with supportive income and collateral requirements within established policy guidelines.  These loans may be secured or unsecured.

Credit Quality

The Company continually monitors the asset quality of the loan portfolio using all available information. Based on this information, loans demonstrating certain payment issues or other weaknesses may be categorized as adversely risk-rated, delinquent, nonperforming and/or put on nonaccrual status. Additionally, in the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower’s ability to repay the loan based on their current financial condition.

The Company reviews numerous credit quality indicators when assessing the risk in its loan portfolio. For the commercial portfolio, the Company utilizes a 10-point credit risk-rating system, which assigns a risk-grade to each loan obligation based on a number of quantitative and qualitative factors associated with a commercial or small business loan transaction. Factors considered include industry and market conditions, position within the industry, earnings trends, operating cash flow, asset/liability values, debt capacity, guarantor strength, management and controls, financial reporting, collateral, and other considerations. The risk-rating categories for the commercial portfolio are defined as follows:

•Pass: Risk-rating “1” through “6” comprises of loans ranging from ‘Substantially Risk Free’ which indicates borrowers are of unquestioned credit standing and the pinnacle of credit quality, well established companies with a very strong financial condition, and loans fully secured by cash collateral, through ‘Acceptable Risk’, which indicates borrowers may exhibit declining earnings, strained cash flow, increasing or above average leverage and/or weakening market fundamentals that indicate below average asset quality, margins and market share. Collateral coverage is protective.

•Potential Weakness: Borrowers exhibit potential credit weaknesses or downward trends deserving management’s close attention. If not checked or corrected, these trends will weaken the Company’s asset and position. While potentially weak, currently these borrowers are marginally acceptable; no loss of principal or interest is envisioned.

•Definite Weakness Loss Unlikely: Borrowers exhibit well defined weaknesses that jeopardize the orderly liquidation of debt. Loans may be inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged, if any. Normal repayment from the borrower is in jeopardy, although no loss of principal is envisioned. However, there is a distinct possibility that a partial loss of interest and/or principal will occur if the deficiencies are not corrected. Collateral coverage may be inadequate to cover the principal obligation.

•Partial Loss Probable: Borrowers exhibit well defined weaknesses that jeopardize the orderly liquidation of debt with the added provision that the weaknesses make collection of the debt in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Serious problems exist to the point where partial loss of principal is likely.

•Definite Loss: Borrowers deemed incapable of repayment. Loans to such borrowers are considered uncollectible and of such little value that continuation as active assets of the Company is not warranted.

The Company utilizes a comprehensive, continuous strategy for evaluating and monitoring commercial credit quality. Initially, credit quality is determined at loan origination and is re-evaluated when subsequent actions, such as renewals, modifications or reviews, occur. Actively managed commercial borrowers are required to provide updated financial information at least annually which is carefully evaluated for any changes in credit quality. Larger loan relationships are subject to a full annual credit review by experienced credit professionals, while continuous portfolio monitoring techniques are employed to evaluate changes in credit quality for smaller loan relationships. Any changes in credit quality are reflected in risk-rating changes. Additionally, the Company retains an independent loan review firm to evaluate the credit quality of the commercial loan portfolio. The independent loan review process achieves significant penetration into the commercial loan portfolio and reports the results of these reviews to the Audit Committee of the Board of Directors on a quarterly basis. Commercial loan modifications granted by the Company allowing payment deferrals for qualifying borrowers in accordance with the Coronavirus Aid, Relief and Economic Security Act ("CARES Act") were assessed for potential downgrades of risk ratings.

For the Company’s consumer portfolio, the quality of the loan is best indicated by the repayment performance of an individual borrower. As a result, for this portfolio the Company utilizes a pass/default risk-rating system, based on an age analysis (i.e., days past due) associated with each consumer loan. Under this structure, consumer loans less than 90 days past due are assigned a "pass" rating, while any consumer loans 90 days or more past due are assigned a "default" rating.

The following table details the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of the dates indicated below:

	March 31, 2022
	2022		2021		2020		2019		2018		Prior		Revolving Loans		Revolving converted to Term		Total (1)
	(Dollars in thousands)
Commercial and industrial
Pass (2)	$	138,642	$	288,516	$	159,051	$	85,497	$	105,651	$	30,082	$	741,200	$	—	$	1,548,639
Potential weakness	629		746		1,402		1,423		88		1,113		4,097		—		9,498
Definite weakness - loss unlikely	403		1,253		—		57		420		2,684		3,238		—		8,055
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	139,674	$	290,515	$	160,453	$	86,977	$	106,159	$	33,879	$	748,535	$	—	$	1,566,192
Commercial real estate
Pass	$	226,907	$	1,548,212	$	1,254,460	$	867,980	$	830,148	$	2,431,434	$	135,980	$	522	$	7,295,643
Potential weakness	10,059		51,223		92,984		43,560		83,195		210,418		13,619		—		505,058
Definite weakness - loss unlikely	145		20,031		4,081		3,237		412		69,009		—		—		96,915
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	237,111	$	1,619,466	$	1,351,525	$	914,777	$	913,755	$	2,710,861	$	149,599	$	522	$	7,897,616
Commercial construction
Pass	$	82,805	$	400,932	$	440,129	$	100,066	$	30,145	$	34,952	$	34,416	$	—	$	1,123,445
Potential weakness	—		—		3,005		—		—		12,935		—		—		15,940
Definite weakness - loss unlikely	—		14,560		—		—		—		—		—		—		14,560
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	82,805	$	415,492	$	443,134	$	100,066	$	30,145	$	47,887	$	34,416	$	—	$	1,153,945
Small business
Pass	$	14,959	$	52,037	$	35,973	$	19,540	$	12,136	$	24,449	$	37,719	$	—	$	196,813
Potential weakness	—		183		435		376		196		277		761		—		2,228
Definite weakness - loss unlikely	—		—		601		20		7		283		453		—		1,364
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total small business	$	14,959	$	52,220	$	37,009	$	19,936	$	12,339	$	25,009	$	38,933	$	—	$	200,405
Residential real estate
Pass	$	177,524	$	446,985	$	209,293	$	106,746	$	111,601	$	650,555	$	—	$	—	$	1,702,704
Default	—		—		392		—		999		1,950		—		—		3,341
Total residential real estate	$	177,524	$	446,985	$	209,685	$	106,746	$	112,600	$	652,505	$	—	$	—	$	1,706,045
Home equity
Pass	$	13,376	$	64,981	$	61,198	$	35,075	$	31,458	$	137,315	$	678,867	$	1,519	$	1,023,789
Default	—		—		—		122		—		64		1,840		—		2,026
Total home equity	$	13,376	$	64,981	$	61,198	$	35,197	$	31,458	$	137,379	$	680,707	$	1,519	$	1,025,815
Other consumer
Pass	$	142	$	2,964	$	2,469	$	1,978	$	695	$	4,669	$	17,074	$	—	$	29,991
Default	—		9		4		—		—		3		2		—		18
Total other consumer	$	142	$	2,973	$	2,473	$	1,978	$	695	$	4,672	$	17,076	$	—	$	30,009
Total	$	665,591	$	2,892,632	$	2,265,477	$	1,265,677	$	1,207,151	$	3,612,192	$	1,669,266	$	2,041	$	13,580,027

	March 31, 2021
	2021		2020		2019		2018		2017		Prior		Revolving Loans		Revolving converted to Term		Total (1)
	(Dollars in thousands)
Commercial and industrial
Pass (2)	$	420,682	$	724,577	$	127,454	$	88,970	$	25,737	$	27,123	$	589,448	$	—	$	2,003,991
Potential weakness	3,424		14,991		2,636		2,148		4,288		3,205		12,252		—		42,944
Definite weakness - loss unlikely	17,912		663		1,116		1,327		2,768		482		6,927		—		31,195
Partial loss probable	—		—		—		—		—		143		8,398		—		8,541
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	442,018	$	740,231	$	131,206	$	92,445	$	32,793	$	30,953	$	617,025	$	—	$	2,086,671
Commercial real estate
Pass	$	214,573	$	1,043,424	$	687,959	$	432,728	$	524,194	$	966,331	$	16,196	$	—	$	3,885,405
Potential weakness	390		29,218		53,849		31,274		18,981		86,160		13,612		—		233,484
Definite weakness - loss unlikely	3,590		22,536		3,754		3,474		9,892		15,482		—		—		58,728
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	218,553	$	1,095,178	$	745,562	$	467,476	$	553,067	$	1,067,973	$	29,808	$	—	$	4,177,617
Commercial construction
Pass	$	28,323	$	239,954	$	142,076	$	28,189	$	23,313	$	6,628	$	19,934	$	—	$	488,417
Potential weakness	—		17,544		9,691		—		—		—		190		—		27,425
Definite weakness - loss unlikely	—		—		—		520		—		—		—		—		520
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	28,323	$	257,498	$	151,767	$	28,709	$	23,313	$	6,628	$	20,124	$	—	$	516,362
Small business
Pass	$	10,307	$	41,418	$	25,817	$	17,750	$	12,624	$	29,309	$	33,658	$	—	$	170,883
Potential weakness	—		—		389		204		10		202		634		—		1,439
Definite weakness - loss unlikely	—		677		51		59		17		301		758		—		1,863
Partial loss probable	—		—		—		—		—		—		26		—		26
Definite loss	—		—		—		—		—		—		—		—		—
Total small business	$	10,307	$	42,095	$	26,257	$	18,013	$	12,651	$	29,812	$	35,076	$	—	$	174,211
Residential real estate
Pass	$	80,657	$	212,891	$	126,359	$	133,150	$	130,580	$	554,848	$	—	$	—	$	1,238,485
Default	—		—		—		427		—		2,877		—		—		3,304
Total residential real estate	$	80,657	$	212,891	$	126,359	$	133,577	$	130,580	$	557,725	$	—	$	—	$	1,241,789
Home equity
Pass	$	23,583	$	77,497	$	51,398	$	46,648	$	48,132	$	140,376	$	636,881	$	1,762	$	1,026,277
Default	—		—		—		—		—		210		2,008		—		2,218
Total home equity	$	23,583	$	77,497	$	51,398	$	46,648	$	48,132	$	140,586	$	638,889	$	1,762	$	1,028,495
Other consumer
Pass	$	46	$	540	$	326	$	146	$	620	$	6,800	$	12,939	$	—	$	21,417
Default	—		—		—		—		15		111		3		—		129
Total other consumer	$	46	$	540	$	326	$	146	$	635	$	6,911	$	12,942	$	—	$	21,546

Total $ 803,487  $ 2,425,930  $ 1,232,875  $ 787,014  $ 801,171  $ 1,840,588  $ 1,353,864  $ 1,762  $ 9,246,691 

(1)Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

(2)Loans originated as part of the Paycheck Protection Program ("PPP") established by the CARES Act are included within commercial and industrial under the 2021 and 2020 vintage year and "pass" category as these loans are 100% guaranteed by the U.S. Government. Outstanding PPP loans totaled $99.6 million and $846.3 million as of March 31, 2022 and 2021, respectively.

    For the Company’s consumer portfolio, the quality of the loan is best indicated by the repayment performance of an individual borrower. However, the Company does supplement performance data with current Fair Isaac Corporation (“FICO”) scores and Loan to Value (“LTV”) estimates. Current FICO data is purchased and appended to all consumer loans on a regular basis. In addition, automated valuation services and broker opinions of value are used to supplement original value data for the residential real estate and home equity portfolios, periodically. The following table shows the weighted average FICO scores and the weighted average combined LTV ratios at the dates indicated below:

	March 31 2022		December 31 2021
Residential real estate portfolio
FICO score (re-scored)(1)	752		749
LTV (re-valued)(2)	54.5	%	54.4	%
Home equity portfolio
FICO score (re-scored)(1)	773		772
LTV (re-valued)(2)(3)	42.3	%	42.4	%

(1)The average FICO scores at March 31, 2022 are based upon rescores from March 2022, as available for previously originated loans, or origination score data for loans booked in March 2022.  The average FICO scores at December 31, 2021 were based upon rescores available from December 2021, as available for previously originated loans, or origination score data for loans booked in December 2021.

(2)The combined LTV ratios for March 31, 2022 are based upon updated automated valuations as of February 2022, when available, and/or the most current valuation data available.  The combined LTV ratios for December 31, 2021 were based upon updated automated valuations as of November 2021, when available, and/or the most current valuation data available as of such date.  The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained.  If no new information is available, the valuation will default to the previously obtained data or most recent appraisal.

(3)For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.

Unfunded Commitments

Management evaluates the need for a reserve on unfunded lending commitments in a manner consistent with loans held for investment. At both March 31, 2022 and December 31, 2021, the Company's estimated reserve for unfunded commitments amounted to $1.5 million.

Asset Quality

The Company’s philosophy toward managing its loan portfolios is predicated upon careful monitoring, which stresses early detection and response to delinquent and default situations. Delinquent loans are managed by a team of collection specialists and the Company seeks to make arrangements to resolve any delinquent or default situation over the shortest possible time frame.  As a general rule, loans 90 days or more past due with respect to principal or interest are classified as nonaccrual loans. The Company also may use discretion regarding other loans 90 days or more delinquent if the loan is well secured and/or in process of collection.

In response to the COVID-19 pandemic, the Company has granted loan modifications to allow deferral of payments for borrowers negatively impacted by the pandemic. The balance of loans with active deferrals as of March 31, 2022 and December 31, 2021 was $304.5 million and $383.1 million, respectively. The majority of these loans with active deferrals as of March 31, 2022 continue to be characterized as current loans. In accordance with regulatory guidance, these modifications are not considered to be troubled debt restructures ("TDRs") if they were performing as of December 31, 2019. Additionally, a majority of these modified loans are characterized as current and therefore are not impacting nonaccrual or delinquency totals as of March 31, 2022 and December 31, 2021. The Company does, however, consider all active deferrals when estimating loss reserves. As loans reach their deferral maturity date, consideration of TDR and delinquency status will resume in accordance with the Company's accounting policy.

The following table shows information regarding nonaccrual loans as of the dates indicated:

	Nonaccrual Balances
	March 31, 2022						December 31, 2021
	With Allowance for Credit Losses		Without Allowance for Credit Losses		Total		With Allowance for Credit Losses		Without Allowance for Credit Losses		Total
	(Dollars in thousands)
Commercial and industrial	$	3,498	$	19	$	3,517	$	3,420	$	19	$	3,439
Commercial real estate	15,835		24,635		40,470		10,870		—		10,870
Small business	20		—		20		44		—		44
Residential real estate	7,861		596		8,457		8,580		602		9,182
Home equity	3,761		—		3,761		3,781		—		3,781
Other consumer	393		—		393		504		—		504
Total nonaccrual loans (1)	$	31,368	$	25,250	$	56,618	$	27,199	$	621	$	27,820

(1)Included in these amounts were $2.0 million of nonaccruing TDRs at both March 31, 2022 and December 31, 2021, respectively.

It is the Company's policy to reverse any accrued interest when a loan is put on nonaccrual status, and, as such, the Company did not record any interest income on nonaccrual loans during the three months ended March 31, 2022 and March 31, 2021.

The following table shows information regarding foreclosed residential real estate property at the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Foreclosed residential real estate property held by the creditor	$	—	$	—
Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$	2,287	$	1,426

The following tables show the age analysis of past due financing receivables as of the dates indicated:

	March 31, 2022
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables		Amortized Cost >90 Days and  Accruing
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	4	$	276	4	$	3,399	—	$	—	8	$	3,675	$	1,562,517	$	1,566,192	$	—
Commercial real estate	10	6,530		3	7,897		2	7,009		15	21,436		7,876,180		7,897,616		—
Commercial construction	3	2,592		—	—		—	—		3	2,592		1,151,353		1,153,945		—
Small business	7	85		2	6		2	8		11	99		200,306		200,405		—
Residential real estate	9	2,890		6	1,546		73	3,341		88	7,777		1,698,268		1,706,045		—
Home equity	11	834		5	81		23	2,026		39	2,941		1,022,874		1,025,815		—
Other consumer (1)	384	541		18	157		8	18		410	716		29,293		30,009		—
Total	428	$	13,748	38	$	13,086	108	$	12,402	574	$	39,236	$	13,540,791	$	13,580,027	$	—

	December 31, 2021
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables		Recorded Investment >90 Days and  Accruing
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	7	$	143	2	$	252	2	$	24	11	$	419	$	1,562,860	$	1,563,279	$	—
Commercial real estate	15	32,845		—	—		4	1,339		19	34,184		7,958,160		7,992,344		—
Commercial construction	—	—		—	—		—	—		—	—		1,165,457		1,165,457		—
Small business	11	136		6	53		4	24		21	213		192,976		193,189		—
Residential real estate	12	2,709		5	714		76	3,922		93	7,345		1,597,341		1,604,686		—
Home equity	15	1,375		6	381		21	1,671		42	3,427		1,036,184		1,039,611		—
Other consumer (1)	458	719		41	277		16	112		515	1,108		27,612		28,720		—
Total	518	$	37,927	60	$	1,677	123	$	7,092	701	$	46,696	$	13,540,590	$	13,587,286	$	—

(1)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

Troubled Debt Restructurings

In the course of resolving nonperforming loans, the Bank may choose to restructure the contractual terms of certain loans. The Bank attempts to work out an alternative payment schedule with the borrower in order to avoid foreclosure actions. Exclusive of loans modified under provisions of the CARES Act, any loans that are modified are reviewed by the Bank to identify if a TDR has occurred, which is when, for economic or legal reasons related to a borrower’s financial difficulties, the Bank grants a concession to the borrower that it would not otherwise consider. Terms may be modified to fit the ability of the borrower to repay in line with its current financial status and the restructuring of the loan may include the transfer of assets from the borrower to satisfy the debt, a modification of loan terms, or a combination of the two.

The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated:

		March 31, 2022		December 31, 2021
	(Dollars in thousands)
TDRs on accrual status		$	13,288	$	14,635
TDRs on nonaccrual		1,972		1,993
Total TDRs		$	15,260	$	16,628
Additional commitments to lend to a borrower who has been a party to a TDR		$	174	$	190

The Company’s policy is to have any restructured loan which is on nonaccrual status prior to being modified remain on nonaccrual status for six months subsequent to being modified before management considers its return to accrual status. If the restructured loan is on accrual status prior to being modified, it is reviewed to determine if the modified loan should remain on accrual status. Additionally, loans classified as TDRs are adjusted to reflect the changes in value of the recorded investment in the loan, if any, resulting from the granting of a concession. For all residential loan modifications, the borrower must perform during a 90 day trial period before the modification is finalized.

There were no new TDRs during the three months ended March 31, 2022. The following table shows the TDRs which occurred during the three months ended March 31, 2021 and the change in the recorded investment subsequent to the modifications occurring:

	Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(Dollars in thousands)
Troubled debt restructurings
Commercial and industrial	1	$	14,148	$	14,148
Commercial real estate	5	3,964		3,964
Small business	1	100		100
Total (1)	7	$	18,212	$	18,212

(1)The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.

The following table shows the Company’s post-modification balance of TDRs listed by type of modification for the three months ended March 31, 2021:

	Post-Modification Balance of TDRs
	(Dollars in thousands)
Combination rate and maturity	14,148
Extended maturity	4,064
Total	$	18,212

The Company considers a loan to have defaulted when it reaches 90 days past due. During the three months ended March 31, 2022 and March 31, 2021, there were no loans modified during the prior twelve months that subsequently defaulted during the respective periods. The Company determines the amount of allowance on TDRs in accordance with CECL methodology using a discounted cash flow approach, or a fair value of collateral approach if the loan is determined to be individually evaluated.

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Stock Based Compensation

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

STOCK BASED COMPENSATION

STOCK BASED COMPENSATION

During the three months ended March 31, 2022, the Company had the following activity related to stock based compensation:

Time Vested Restricted Stock Awards

The Company made the following awards of time vested restricted stock:

Date	Shares Granted	Plan	Grant Date Fair Value Per Share		Vesting Period
2/17/2022	52,100	2005 Employee Stock Plan	$	84.70	Ratably over 5 years from grant date

Performance-Based Restricted Stock Awards

    On February 17, 2022, the Company granted 20,700 performance-based restricted stock awards, representing the maximum number of shares that may be earned under the awards, to certain executive level employees. These performance-based restricted stock awards were issued from the 2005 Employee Stock Plan and were determined to have a grant date fair value per share of $84.70. The number of shares to be vested are contingent upon the Company's attainment of certain performance criteria to be measured at the end of a three year performance period, ending December 31, 2024. The awards will vest upon the earlier of the date on which it is determined if the performance goal is achieved subsequent to the performance period or March 31, 2025.

    On March 10, 2022, the performance-based restricted stock awards that were awarded on February 21, 2019 vested at 50% of the maximum target shares awarded, or 7,450 shares.

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Derivatives and Hedging Activities

3 Months Ended

Mar. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Fair Value

DERIVATIVE AND HEDGING ACTIVITIES

The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally to manage the Company’s interest rate risk. Additionally, the Company enters into interest rate derivatives, foreign exchange contracts and risk participation agreements to accommodate the business requirements of its customers (“customer related positions”). The Company minimizes the market and liquidity risks of customer related positions by entering into similar offsetting positions with broker-dealers. Derivative instruments are carried at fair value in the Company's financial statements. The accounting for changes in the fair value of a derivative instrument is dependent upon whether or not it qualifies as a hedge for accounting purposes, and further, by the type of hedging relationship.

The Company does not enter into proprietary trading positions for any derivatives.

The Company is subject to over-the-counter derivative clearing requirements which require certain derivatives to be cleared through central clearing houses. Accordingly, the Company clears certain derivative transactions through the Chicago Mercantile Exchange Clearing House ("CME"). This clearing house requires the Company to post initial and variation margin to mitigate the risk of non-payment, the latter of which is received or paid daily based on the net asset or liability position of the contracts.

Interest Rate Positions

The Company may utilize various interest rate derivatives as hedging instruments against interest rate risk associated with the Company’s borrowings and loan portfolios. An interest rate derivative is an agreement whereby one party agrees to pay a floating rate of interest on a notional principal amount in exchange for receiving a fixed rate of interest on the same notional amount, for a predetermined period of time, from a second party. The amounts relating to the notional principal amount are not actually exchanged.

The following tables reflect the Company's derivative positions as of the dates indicated below for interest rate derivatives which qualify as cash flow hedges for accounting purposes:

March 31, 2022
				Weighted Average Rate
	Notional Amount		Average Maturity	Current Rate Received		Pay Fixed Swap Rate		Fair Value
	(in thousands)		(in years)					(in thousands)
Interest rate swaps on borrowings	$	25,000	0.38	0.47	%	1.88	%	$	(124)
				Current Rate Paid		Receive Fixed Swap Rate
Interest rate swaps on loans	550,000		2.33	0.32	%	2.16	%	(4,785)
				Current Rate Paid		Receive Fixed Swap Rate Cap - Floor
Interest rate collars on loans	350,000		1.65	0.33	%	2.72% - 2.26%		703
Total	$	925,000						$	(4,206)
December 31, 2021
				Weighted Average Rate
	Notional Amount		Average Maturity	Current Rate Received		Pay Fixed Swap Rate		Fair Value
	(in thousands)		(in years)					(in thousands)
Interest rate swaps on borrowings	$	25,000	0.62	0.16	%	1.88	%	$	(294)
				Current Rate Paid		Receive Fixed Swap Rate
Interest rate swaps on loans	550,000		2.58	0.11	%	2.16	%	11,830
				Current Rate Paid		Receive Fixed Swap Rate Cap - Floor
Interest rate collars on loans	400,000		1.66	0.11	%	2.73% - 2.20%		9,383
Total	$	975,000						$	20,919

The maximum length of time over which the Company is currently hedging its exposure to the variability in future cash flows for forecasted transactions related to the payment of variable interest on existing financial instruments is 7.0 years.

For derivative instruments that are designated and qualify as cash flow hedging instruments, the effective portion of the gains or losses is reported as a component of other comprehensive income ("OCI"), and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings.  The Company expects approximately $4.1 million (pre-tax) to be reclassified as an increase to interest income and $80,000 (pre-tax) to be reclassified as an increase to interest expense, from OCI related to the Company’s cash flow hedges in the next twelve months.  This reclassification is due to anticipated payments that will be made and/or received on the swaps based upon the forward curve as of March 31, 2022.

The Company had no fair value hedges as of March 31, 2022 or December 31, 2021.

Customer Related Positions

Loan level derivatives, primarily interest rate swaps, offered to commercial borrowers through the Company’s loan level derivative program do not qualify as hedges for accounting purposes. The Company believes that its exposure to commercial customer derivatives is limited because these contracts are simultaneously matched at inception with an offsetting dealer transaction. Derivatives with dealer counterparties are then either cleared through a clearinghouse or settled directly with a single counterparty. The commercial customer derivative program allows the Company to retain variable-rate commercial loans while allowing the customer to synthetically fix the loan rate by entering into a variable-to-fixed interest rate swap. The amounts relating to the notional principal amount are not actually exchanged.

Foreign exchange contracts offered to commercial borrowers through the Company’s derivative program do not qualify as hedges for accounting purposes. The Company acts as a seller and buyer of foreign exchange contracts to accommodate its customers. To mitigate the market and liquidity risk associated with these derivatives, the Company enters into similar offsetting positions. The amounts relating to the notional principal amount are exchanged.

The Company has entered into risk participation agreements with other dealer banks in commercial loan agreements. Participating banks guarantee the performance on borrower-related interest rate swap contracts. These derivatives are not designated as hedges and, therefore, changes in fair value are recognized in earnings. Under a risk participation-out agreement, a derivative asset, the Company participates out a portion of the credit risk associated with the interest rate swap position executed with the commercial borrower for a fee paid to the participating bank. Under a risk participation-in agreement, a derivative liability, the Company assumes, or participates in, a portion of the credit risk associated with the interest rate swap position with the commercial borrower for a fee received from the other bank.

The following table reflects the Company’s customer related derivative positions as of the dates indicated below for those derivatives not designated as hedging:

		Notional Amount Maturing
	Number of  Positions  (1)	Less than 1 year		Less than 2 years		Less than 3 years		Less than 4 years		Thereafter		Total		Fair Value
	March 31, 2022
	(Dollars in thousands)
Loan level swaps
Receive fixed, pay variable	295	$	63,981	$	108,216	$	177,574	$	244,445	$	1,023,964	$	1,618,180	$	(26,666)
Pay fixed, receive variable	295	63,981		108,216		177,574		244,445		1,023,964		1,618,180		26,666
Foreign exchange contracts
Buys foreign currency, sells U.S. currency	44	126,627		2,535		—		—		—		129,162		(5,667)
Buys U.S. currency, sells foreign currency	44	126,627		2,535		—		—		—		129,162		5,739
Risk participation agreements
Participation out	11	—		2,625		24,538		—		68,601		95,764		215
Participation in	8	29,797		28,021		—		—		21,463		79,281		(54)
		Notional Amount Maturing
	Number of  Positions  (1)	Less than 1 year		Less than 2 years		Less than 3 years		Less than 4 years		Thereafter		Total		Fair Value
	December 31, 2021
	(Dollars in thousands)
Loan level swaps
Receive fixed, pay variable	296	$	37,589	$	139,844	$	123,507	$	260,953	$	1,060,276	$	1,622,169	$	55,984
Pay fixed, receive variable	296	37,589		139,844		123,507		260,953		1,060,276		1,622,169		(55,982)
Foreign exchange contracts
Buys foreign currency, sells U.S. currency	52	149,588		8,784		—		—		—		158,372		5,734
Buys U.S. currency, sells foreign currency	52	149,588		8,784		—		—		—		158,372		(5,734)
Risk participation agreements
Participation out	11	—		2,635		7,138		24,539		68,408		102,720		279
Participation in	7	29,972		28,235		—		—		8,339		66,546		(55)

(1)The Company may enter into one dealer swap agreement which offsets multiple commercial borrower swap agreements.

Mortgage Derivatives

The Company enters into commitments to fund residential mortgage loans at specified rates and times in the future, with the intention that loans may be sold subsequently in the secondary market. Mortgage loan commitments are referred to as derivative loan commitments if the loan that will result from exercise of the commitment will be held for sale upon funding. These commitments are recognized at fair value on the consolidated balance sheet in other assets and other liabilities with changes in their fair values recorded within mortgage banking income. In addition, the Company has elected the fair value option to carry loans held for sale at fair value. The change in fair value of loans held for sale is recorded in current period earnings as a component of mortgage banking income in accordance with the Company's fair value election. The fair value of loans held for sale decreased by $548,000 and $1.8 million for the three month periods ended March 31, 2022 and 2021, respectively. These amounts were offset in earnings by the change in the fair value of mortgage derivatives.

Outstanding loan commitments expose the Company to the risk that the price of the loans arising from exercise of the loan commitment might change from inception of the rate lock to funding of the loan due to changes in mortgage interest rates. If interest rates increase, the value of these loan commitments decreases. Conversely, if interest rates decrease, the value of these loan commitments increases. To protect against the price risk inherent in derivative loan commitments, the Company utilizes both "mandatory delivery" and "best efforts" forward loan sale commitments to mitigate the risk of potential decreases in the values of loans that would result from the exercise of the derivative loan commitments. Mandatory delivery contracts are accounted for as derivative instruments. Included in the mandatory delivery forward commitments are To Be Announced securities ("TBAs"). Certain assumptions, including pull through rates and rate lock periods, are used in managing the existing and future hedges. The accuracy of underlying assumptions will impact the ultimate effectiveness of any hedging strategies.

With mandatory delivery contracts, the Company commits to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. If the Company fails to deliver the amount of mortgages necessary to fulfill the commitment by the specified date, it is obligated to pay a "pair-off" fee, based on then-current market prices, to the investor/counterparty to compensate the investor for the shortfall. Generally, the Company makes this type of commitment once mortgage loans have been funded and are held for sale, in order to minimize the risk of failure to deliver the requisite volume of loans to the investor and paying pair-off fees as a result. The Company also sells TBA securities to offset potential changes in the fair value of derivative loan commitments. Generally, the Company sells TBA securities by entering into derivative loan commitments for settlement in 30 to 90 days. The Company expects that mandatory delivery contracts, including TBA securities, will experience changes in fair value opposite to the changes in the fair value of derivative loan commitments.

With best effort contracts, the Company commits to deliver an individual mortgage loan of a specified principal amount and quality to an investor if the loan to the underlying borrower closes. Generally, best efforts cash contracts have no pair off risk regardless of market movement. The price the investor will pay the seller for an individual loan is specified prior to the loan being funded (e.g., on the same day the lender commits to lend funds to a potential borrower). The Company expects that these best efforts forward loan sale commitments will experience a net neutral shift in fair value with related derivative loan commitments.

The aggregate amount of net realized gains or losses on sales of such loans included within mortgage banking income was $599,000 and $8.1 million for the three month periods ended March 31, 2022 and 2021, respectively.

Balance Sheet Offsetting

The Company does not offset fair value amounts recognized for derivative instruments. The Company does net the amount recognized for the right to reclaim cash collateral against the obligation to return cash collateral arising from derivative instruments executed with the same counterparty under a master netting arrangement. Collateral legally required to be maintained at dealer banks by the Company is monitored and adjusted as necessary.

A daily settlement occurs through the CME for changes in the fair value of centrally cleared derivatives. Not all of the derivatives are required to be cleared through the daily clearing agent. As a result, the total fair values of loan level derivative assets and liabilities recognized on the Company's financial statements are not equal and offsetting.

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the balance sheet and the potential effect of netting arrangements on its financial position, at the dates indicated:

	Asset Derivatives (1)						Liability Derivatives (2)
	Fair Value at			Fair Value at			Fair Value at			Fair Value at
	March 31 2022			December 31 2021			March 31 2022			December 31 2021
	(Dollars in thousands)
Derivatives designated as hedges
Interest rate derivatives	$	5,271	(3)	$	21,951	(3)	$	9,477	(4)	$	1,032	(4)
Derivatives not designated as hedges
Customer Related Positions
Loan level derivatives	50,418		(3)	68,726		(3)	50,418		(4)	68,724		(4)
Foreign exchange contracts	6,007			6,147			5,935			6,147
Risk participation agreements	215			279			54			55
Mortgage Derivatives
Interest rate lock commitments	58			753			—			—
Forward sale loan commitments	27			56			—			—
Forward sale hedge commitments	248			—			—			57
Total derivatives not designated as hedges	56,973			75,961			56,407			74,983
Total	62,244			97,912			65,884			76,015
Netting Adjustments (5)	(27,893)			(5,727)			6,478			6,769
Net Derivatives on the Balance Sheet	34,351			92,185			59,406			69,246
Financial instruments (6)	10,062			22,378			10,062			22,378
Cash collateral pledged (received)	—			—			4,587			33,838
Net Derivative Amounts	$	24,289		$	69,807		$	44,757		$	13,030

(1)All asset derivatives are reflected in other assets on the balance sheet.

(2)All liability derivatives are reflected in other liabilities on the balance sheet.

(3)Approximately $878,000 and $226,000 of accrued interest receivable is included in the fair value of the interest rate and loan level asset derivatives, respectively, as of March 31, 2022, in comparison to accrued interest receivable of approximately $1.2 million and $1.5 million, respectively, as of December 31, 2021.

(4)As of March 31, 2022, approximately $216,000 of accrued interest receivable is included in the fair value of interest rate derivative liabilities and approximately $225,000 of accrued interest payable is included in the fair value of loan level liability derivatives. Accrued interest payable of approximately $5,000 and $1.5 million is included in the fair value of the interest rate and loan level derivative liabilities, respectively, as of December 31, 2021.

(5)Netting adjustments represent the amounts recorded to convert derivative assets and liabilities cleared through CME from a gross basis to a net basis, inclusive of the variation margin payments, in accordance with applicable accounting guidance. As displayed in the table above, derivatives that cleared through the CME were either in a net asset position or a net liability position as of March 31, 2022.

(6)Reflects offsetting derivative positions with the same counterparty that are not netted on the balance sheet.

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	Three Months Ended
	March 31
	2022		2021
	(Dollars in thousands)
Derivatives designated as hedges
Gain in OCI on derivatives (effective portion), net of tax	$	(17,950)	$	(6,583)
Gain reclassified from OCI into interest income or interest expense (effective portion)	$	4,505	$	4,380
Loss reclassified from OCI into noninterest expense (loss on termination)	$	—	$	—
Interest expense	$	—	$	—
Other expense	—		—
Total	$	—	$	—
Derivatives not designated as hedges
Changes in fair value of customer related positions
Other income	$	89	$	6
Other expense	(83)		(283)
Changes in fair value of mortgage derivatives
Mortgage banking income	(419)		(2,324)
Total	$	(413)	$	(2,601)

    The Company's derivative agreements with institutional counterparties contain various credit-risk related contingent provisions, such as requiring the Company to maintain a well-capitalized capital position. If the Company fails to meet these conditions, the counterparties could request the Company make immediate payment or demand that the Company provide immediate and ongoing full collateralization on derivative positions in net liability positions. The aggregate fair value of all derivative instruments with credit-risk related contingent features that were in a net liability position was $1.1 million and $34.8 million at March 31, 2022 and December 31, 2021, respectively. Although none of the contingency provisions have applied as of March 31, 2022 and December 31, 2021, the Company has posted collateral to offset the net liability exposure with institutional counterparties.

    By using derivatives, the Company is exposed to credit risk to the extent that counterparties to the derivative contracts do not perform as required. Should a counterparty fail to perform under the terms of a derivative contract, the Company's credit exposure on interest rate swaps is limited to the net positive fair value and accrued interest of all swaps with each counterparty. The Company seeks to minimize counterparty credit risk through credit approvals, limits, monitoring procedures, and obtaining collateral, where appropriate. Institutional counterparties must have an investment grade credit rating and be approved by the Company's Board of Directors. As such, management believes the risk of incurring credit losses on derivative contracts with institutional counterparties is remote. The Company's exposure relating to institutional counterparties was $43.8 million and $28.3 million at March 31, 2022 and December 31, 2021, respectively. The Company’s exposure relating to customer counterparties was approximately $11.8 million and $62.4 million at March 31, 2022 and December 31, 2021, respectively. Credit exposure may be reduced by the value of collateral pledged by the counterparty.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS Fair value is a market-based measure considered from the perspective of a market participant rather than an entity-specific measure. Therefore, even when market assumptions are not readily available, the assumptions applied by the Company when determining fair value reflect those that the Company determines market participants would use to price the asset or liability at the measurement date. If there has been a significant decrease in the volume and level of activity for the asset or liability, regardless of the valuation technique(s) used, the objective of a fair value measurement remains the same. Fair value is the price that would be received if the asset were to be sold or that would be or paid if the liability were to be transferred in an orderly market transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. When determining fair value, the Company considers pricing information and other inputs that are current as of the measurement date. In periods of market dislocation, the observability of prices and other inputs may be reduced for certain instruments, or not available at all. The unavailability or reduced availability of pricing or other input information could cause an instrument to be reclassified from one level to another.

The Fair Value Measurements and Disclosures Topic of the FASB ASC defines fair value and establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under the Fair Value Measurements and Disclosures Topic of the FASB ASC are described below:

Level 1 – Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

Level 2 – Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly.

Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Valuation Techniques

There have been no changes in the valuation techniques used during the three months ended March 31, 2022.

Securities

Trading and Equity Securities

These equity securities are valued based on market quoted prices. These securities are categorized in Level 1 as they are actively traded and no valuation adjustments have been applied.

U.S. Government Agency and U.S. Treasury Securities

Fair value is estimated using either multi-dimensional spread tables or benchmarks. The inputs used include benchmark yields, reported trades, and broker/dealer quotes. These securities are classified as Level 2.

Agency Mortgage-Backed Securities

Fair value is estimated using either a matrix or benchmarks. The inputs used include benchmark yields, reported trades, broker/dealer quotes, and issuer spreads. These securities are categorized as Level 2.

Agency Collateralized Mortgage Obligations and Small Business Administration Pooled Securities

The valuation model for these securities is volatility-driven and ratings based, and uses multi-dimensional spread tables. The inputs used include benchmark yields, reported trades, new issue data, broker dealer quotes, and collateral performance. If there is at least one significant model assumption or input that is not observable, these securities are categorized as Level 3 within the fair value hierarchy; otherwise, they are classified as Level 2.

State, County, and Municipal Securities

The fair value is estimated using a valuation matrix with inputs including bond interest rate tables, recent transactions, and yield relationships. These securities are categorized as Level 2.

Single and Pooled Issuer Trust Preferred Securities

The fair value of trust preferred securities, including pooled and single issuer preferred securities, is estimated using external pricing models, discounted cash flow methodologies or similar techniques. The inputs used in these valuations include benchmark yields, reported trades, new issue data, broker dealer quotes, and collateral performance. If there is at least one significant model assumption or input that is not observable, these securities are classified as Level 3 within the fair value hierarchy; otherwise, they are classified as Level 2.

Loans Held for Sale

The Company has elected the fair value option to account for originated closed loans intended for sale. The fair value is measured on an individual loan basis using quoted market prices and when not available, comparable market value or discounted cash flow analysis may be utilized. These assets are typically classified as Level 2.

Derivative Instruments

Derivatives

The valuation of these instruments is 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 volatilizes. The Company incorporates credit valuation adjustments to appropriately reflect nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings. Additionally, in conjunction with fair value measurement guidance, the Company has made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. Although the Company has determined that the majority of the inputs used to value its interest rate derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its interest rate derivatives and risk participation agreements may also utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. However, as of March 31, 2022 and December 31, 2021, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Company has determined that its derivative valuations in their entirety are properly classified as Level 2.

Mortgage Derivatives

The fair value of mortgage derivatives is determined based on current market prices for similar assets in the secondary market and, therefore, classified as Level 2 within the fair value hierarchy.

Individually Assessed Collateral Dependent Loans

In accordance with the CECL standard, expected credit losses on individually assessed loans deemed to be collateral dependent are valued based upon the lower of amortized cost or fair value of the underlying collateral less costs to sell.  The inputs used in the appraisals of the collateral are not always observable, and in such cases the loans may be classified as Level 3 within the fair value hierarchy; otherwise, they are classified as Level 2.

Other Real Estate Owned and Other Foreclosed Assets

Other Real Estate Owned ("OREO") and Other Foreclosed Assets are valued at the lower of cost or fair value of the property, less estimated costs to sell. The fair values are generally estimated based upon recent appraisal values of the property less costs to sell the property. Certain inputs used in appraisals are not always observable, and therefore OREO and Other Foreclosed Assets may be classified as Level 3 within the fair value hierarchy.

Goodwill and Other Intangible Assets

Goodwill and other intangible assets are subject to impairment testing. The Company conducts an annual impairment test of goodwill in the third quarter of each year, or more frequently if necessary. Other intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. To estimate the fair value of goodwill and, if necessary, other intangible assets, the Company utilizes both a comparable analysis of relevant price multiples in recent market transactions and a discounted cash flow analysis. Both valuation models require a significant degree of management judgment. In the event the fair value as determined by the valuation model is less than the carrying value, the intangibles may be impaired. If the impairment testing resulted in impairment, the Company would classify the impaired goodwill and other intangible assets subjected to nonrecurring fair value adjustments as Level 3.

Assets and liabilities measured at fair value on a recurring and nonrecurring basis were as follows as of the dates indicated:

			Fair Value Measurements at Reporting Date Using
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2022
	(Dollars in thousands)
Recurring fair value measurements
Assets
Trading securities	$	3,956	$	3,956	$	—	$	—
Equity securities	22,611		22,611		—		—
Securities available for sale
U.S. government agency securities	215,935		—		215,935		—
U.S. treasury securities	822,333		—		822,333		—
Agency mortgage-backed securities	397,985		—		397,985		—
Agency collateralized mortgage obligations	49,002		—		49,002		—
State, county, and municipal securities	200		—		200		—
Single issuer trust preferred securities issued by banks and insurers	489		—		489		—
Pooled trust preferred securities issued by banks and insurers	999		—		999		—
Small business administration pooled securities	65,788		—		65,788		—
Loans held for sale	6,144		—		6,144		—
Derivative instruments	62,244		—		62,244		—
Liabilities
Derivative instruments	65,884		—		65,884		—
Total recurring fair value measurements	$	1,581,802	$	26,567	$	1,555,235	$	—
Nonrecurring fair value measurements
Assets
Individually assessed collateral dependent loans (1)	$	25,231	$	—	$	—	$	25,231
Total nonrecurring fair value measurements	$	25,231	$	—	$	—	$	25,231

			Fair Value Measurements at Reporting Date Using
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	December 31, 2021
	(Dollars in thousands)
Recurring fair value measurements
Assets
Trading securities	$	3,720	$	3,720	$	—	$	—
Equity securities	23,173		23,173		—		—
Securities available for sale
U.S. government agency securities	215,482		—		215,482		—
U.S. treasury securities	861,448		—		861,448		—
Agency mortgage-backed securities	363,933		—		363,933		—
Agency collateralized mortgage obligations	79,677		—		79,677		—
State, county, and municipal securities	203		—		203		—
Single issuer trust preferred securities issued by banks and insurers	491		—		491		—
Pooled trust preferred securities issued by banks and insurers	1,000		—		1,000		—
Small business administration pooled securities	48,914		—		48,914		—
Loans held for sale	24,679		—		24,679		—
Derivative instruments	97,912		—		97,912		—
Liabilities
Derivative instruments	76,015		—		76,015		—
Total recurring fair value measurements	$	1,644,617	$	26,893	$	1,617,724	$	—
Nonrecurring fair value measurements
Assets
Individually assessed collateral dependent loans (1)	$	1,174	$	—	$	—	$	1,174
Total nonrecurring fair value measurements	$	1,174	$	—	$	—	$	1,174

(1) The carrying value of individually assessed collateral dependent loans is based on the lower of amortized cost or fair value of the underlying collateral less costs to sell. The fair value of the underlying collateral is generally determined through independent appraisals, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the dates indicated:

					Fair Value Measurements at Reporting Date Using
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2022
	(Dollars in thousands)
Financial assets
Securities held to maturity (a)
U.S. government agency securities	$	32,555	$	30,981	$	—	$	30,981	$	—
U.S. treasury securities	100,576		94,596		—		94,596		—
Agency mortgage-backed securities	550,333		521,183		—		521,183		—
Agency collateralized mortgage obligations	576,964		542,566		—		542,566		—
Single issuer trust preferred securities issued by banks	1,500		1,508		—		1,508		—
Small business administration pooled securities	20,513		20,104		—		20,104		—
Loans, net of allowance for credit losses (b)	13,410,278		13,301,406		—		—		13,301,406
Federal Home Loan Bank stock (c)	11,407		11,407		—		11,407		—
Cash surrender value of life insurance policies (d)	291,192		291,192		—		291,192		—
Financial liabilities
Deposit liabilities, other than time deposits (e)	$	15,364,782	$	15,364,782	$	—	$	15,364,782	$	—
Time certificates of deposits (f)	1,398,610		1,384,450		—		1,384,450		—
Federal Home Loan Bank borrowings (f)	25,660		25,626		—		25,626		—
Junior subordinated debentures (g)	62,854		63,654		—		63,654		—
Subordinated debentures (f)	49,814		43,754		—		—		43,754

					Fair Value Measurements at Reporting Date Using
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	December 31, 2021
	(Dollars in thousands)
Financial assets
Securities held to maturity (a)
U.S. government agency securities	$	32,987	$	32,546	$	—	$	32,546	$	—
U.S. treasury securities	102,560		102,242		—		102,242		—
Agency mortgage-backed securities	493,012		497,236		—		497,236		—
Agency collateralized mortgage obligations	415,736		408,845		—		408,845		—
Single issuer trust preferred securities issued by banks	1,500		1,508		—		1,508		—
Small business administration pooled securities	21,023		21,756		—		21,756		—
Loans, net of allowance for credit losses (b)	13,439,190		13,389,515		—		—		13,389,515
Federal Home Loan Bank stock (c)	11,407		11,407		—		11,407		—
Cash surrender value of life insurance policies (d)	289,304		289,304		—		289,304		—
Financial liabilities
Deposit liabilities, other than time deposits (e)	$	15,385,894	$	15,385,894	$	—	$	15,385,894	$	—
Time certificates of deposits (f)	1,531,150		1,529,857		—		1,529,857		—
Federal Home Loan Bank borrowings (f)	25,667		25,663		—		25,663		—
Long-term borrowings (f)	14,063		13,989		—		13,989		—
Junior subordinated debentures (g)	62,853		67,019		—		67,019		—
Subordinated debentures (f)	49,791		45,532		—		—		45,532

(a)The fair values presented are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments and/or discounted cash flow analysis.

(b)Fair value of loans is measured using the exit price valuation method, determined primarily by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities or cash flows, while incorporating liquidity and credit assumptions. Additionally, this amount excludes individually assessed collateral dependent loans, which are deemed to be marked to fair value on a nonrecurring basis.

(c)Federal Home Loan Bank stock has no quoted market value and is carried at cost; therefore the carrying amount approximates fair value.

(d)Cash surrender value of life insurance policies is recorded at its cash surrender value (or the amount that can be realized upon surrender of the policy), therefore, carrying amount approximates fair value.

(e)Fair value of demand deposits, savings and interest checking accounts and money market deposits is the amount payable on demand at the reporting date.

(f)Fair value was determined by discounting anticipated future cash payments using rates currently available for instruments with similar remaining maturities.

(g)Fair value was determined based upon market prices of securities with similar terms and maturities.

This summary excludes certain financial assets and liabilities for which the carrying value approximates fair value. For financial assets, these may include cash and due from banks, federal funds sold and short-term investments. For financial liabilities, these may include federal funds purchased. These instruments would all be considered to be classified as Level 1 within the fair value hierarchy. Also excluded from the summary are financial instruments measured at fair value on a recurring and nonrecurring basis, as previously described.

The Company considers its current use of financial instruments to be the highest and best use of the instruments.

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Revenue Recognition (Notes)

3 Months Ended

Mar. 31, 2022

Revenue Recognition [Abstract]

Revenue from Contract with Customer [Text Block]

REVENUE RECOGNITION

A portion of the Company's noninterest income is derived from contracts with customers, and as such, the revenue recognized depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company considers the terms of the contract and all relevant facts and circumstances when applying this guidance. To ensure its alignment with this core principle, the Company measures revenue and the timing of recognition by applying the following five steps:

1.Identify the contract(s) with customers

2.Identify the performance obligations

3.Determine the transaction price

4.Allocate the transaction price to the performance obligations

5.Recognize revenue when (or as) the entity satisfies a performance obligation

The Company has disaggregated its revenue from contracts with customers into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. The following table presents the revenue streams that the Company has disaggregated as of the periods indicated:

	Three Months Ended
	March 31 2022		March 31 2021
	(Dollars in thousands)
Deposit account fees (inclusive of cash management fees)	$	5,493	$	3,584
Interchange fees	2,472		1,903
ATM fees	841		625
Investment management - wealth management and advisory services	7,904		7,402
Investment management - retail investments and insurance revenue	769		902
Merchant processing income	378		320
Credit card income	372		236
Other noninterest income	1,396		1,125
Total noninterest income in-scope of ASC 606	19,625		16,097
Total noninterest income out-of-scope of ASC 606	6,647		9,149
Total noninterest income	$	26,272	$	25,246

In each of the revenue streams identified above, there were no significant judgments made in determining or allocating the transaction price, as the consideration and service requirements are generally explicitly identified in the associated contracts. Additional information related to each of the revenue streams is further noted below.

Deposit Account Fees

The Company offers various deposit account products to its customers governed by specific deposit agreements applicable to either personal customers or business customers. These agreements identify the general conditions and obligations of both parties, and include standard information regarding deposit account related fees.

Deposit account services include providing access to deposit accounts as well as access to the various deposit transactional services of the Company. These transactional services are primarily those that are identified in the standard fee schedule, and include, but are not limited to, services such as overdraft protection, wire transfer, and check collection. Revenue is recognized in conjunction with the various services being provided. For example, the Company may assess monthly fixed service fees associated with the customer having access to a deposit account, which can vary depending on the account type and daily account balance. In addition, the Company may also assess separate fixed fees associated with and at the time specific transactions are entered into by the customer. As such, the Company considers its performance obligations to be met concurrently with providing the account access or completing the requested deposit transaction.

Cash Management

Cash management services are a subset of the deposit account fees revenue stream. These services primarily include ACH transaction processing, positive pay and remote deposit services. These services are also governed by separate agreements entered into with the customer. The fee arrangement for these services is structured to assess fees under one of two scenarios, either a per transaction fee arrangement or an earnings credit analysis arrangement. Under the per transaction fee arrangement, fixed fees are assessed concurrently with customers executing the transactions, and as such, the Company considers its performance obligations to be met concurrently with completing the requested transaction. Under the earnings credit analysis arrangement, the Company provides a monthly earnings credit to the customer that is negotiated and determined based on various factors. The credit is then available to absorb the per transaction fees that are assessed on the customer's deposit account activity for the month. Any amount of the transactional fees in excess of the earnings credit is recognized as revenue in that month.

Interchange Fees

The Company earns interchange revenue from its issuance of credit and debit cards granted through its membership in various card payment networks. The Company provides credit cards and debit cards to its customers which are authorized and settled through these payment networks, and in exchange, the Company earns revenue as determined by each payment network's interchange program. The revenue is recognized concurrently with the settlement of card transactions within each network.

ATM Fees

The Company deploys automated teller machines (ATMs) as part of its overall branch network. Certain transactions performed at the ATMs require customers to acknowledge and pay a fee for the requested service. Certain ATM fees are disclosed in the deposit account agreement fee schedules, whereas those assessed to non-Rockland Trust deposit holders are solely determined during the transaction at the machine.

The ATM fee is a fixed dollar per transaction amount, and as such, is recognized concurrently with the overall daily processing and settlement of the ATM activity.

Investment Management - Wealth Management and Advisory Services

The Company offers investment management and trust services to individuals, institutions, small businesses and charitable institutions. Each investment management product is governed by its own contract along with a separate identifiable fee schedule unique to that product. The Company also offers additional services, such as estate settlement, financial planning, tax services and other special services quoted at the client's request.

The asset management and/or custody fees are based upon a percentage of the monthly valuation of the principal assets in the customer's account, whereas fees for additional or special services are fixed in nature and are charged as services are rendered. As the fees are dependent on assets under management, which are susceptible to market factors outside of the Company's control, this variable consideration is constrained and therefore no revenue is estimated at contract initiation. As such, all revenue is recognized in correlation to the monthly management fee determinations or as transactional services are provided. Due to the fact that payments are primarily made subsequent to the valuation period, the Company records a receivable for revenue earned but not received. The following table provides the amount of investment management revenue earned but not received as of the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Receivables, included in other assets	$	5,310	$	5,385

Investment Management - Retail Investments and Insurance Revenue

The Company offers the sale of mutual fund shares, unit investment trust shares, general securities, fixed and variable annuities and life insurance products through registered representatives who are both employed by the Company and licensed and contracted with various broker general agents to offer these products to the Company’s customer base. As such, the Company performs these services as an agent and earns a fixed commission on the sales of these products and services. To a lesser degree, production bonus commissions can also be earned based upon the Company meeting certain volume thresholds.

In general, the Company recognizes commission revenue at the point of sale, and for certain insurance products, may also earn and recognize annual residual commissions commensurate with annual premiums being paid.

Merchant Processing Income

The Company refers customers to third party merchant processing partners in exchange for commission and fee income. The income earned is comprised of multiple components, including a fixed referral fee per each referred customer, a rebate amount determined primarily as a percentage of net revenue earned by the third party from services provided to each referred customer, and overall production bonus commissions if certain new account production thresholds are met. Merchant processing income is recognized in conjunction with either completing the referral to earn the fixed fee amount or as the merchant activity is processed to derive the Company's rebate and/or production bonus amounts.

Credit Card Income

The Company provides consumer and business credit card solutions to its customers by soliciting new accounts on behalf of a third party credit card provider in exchange for a fee. The income earned is comprised of new account incentive payments as well as a percentage of interchange income earned by the third party provider offering the consumer and business purpose revolving credit accounts. The credit card income is recognized in conjunction with the establishment of each new credit card member or as the interchange is earned by the third party in connection with net purchase transactions made by the credit card member.

Other Noninterest Income

The Company earns various types of other noninterest income that fall within the scope of the new revenue recognition rules, and have been aggregated into one general revenue stream in the table noted above. This amount includes, but is not limited to, the following types of revenue with customers:

Safe Deposit Rent

    The Company rents out the use of safe deposit boxes to its customers, which can be accessed when the bank is open for business. The safe deposit box rental fee is paid upfront and is recognized as revenue ratably over the annual term of the contract.

1031 Exchange Fee Revenue

    The Company provides like-kind exchange services pursuant to Section 1031 of the Internal Revenue Code. Fee income is recognized in conjunction with completing the exchange transactions.

Foreign Currency

    The Company earns fee income associated with various transactions related to foreign currency product offerings, including foreign currency bank notes and drafts and foreign currency wires. The majority of this income is derived from commissions earned related to customers executing the above mentioned foreign currency transactions through arrangements with third party correspondents.

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Comprehensive Income/Loss

3 Months Ended

Mar. 31, 2022

Equity [Abstract]

COMPREHENSIVE INCOME/LOSS

OTHER COMPREHENSIVE INCOME (LOSS)

The following tables present a reconciliation of the changes in the components of other comprehensive income (loss) for the periods indicated, including the amount of income tax (expense) benefit allocated to each component of other comprehensive income (loss):

	Three Months Ended March 31, 2022
	Pre-Tax Amount		Tax (Expense) Benefit		After Tax Amount
	(Dollars in thousands)
Change in fair value of securities available for sale	$	(81,619)	$	19,063	$	(62,556)
Less: net security losses reclassified into other noninterest expense	—		—		—
Net change in fair value of securities available for sale	(81,619)		19,063		(62,556)
Change in fair value of cash flow hedges	(20,480)		5,768		(14,712)
Less: net cash flow hedge gains reclassified into interest income or interest expense	4,505		(1,267)		3,238
Net change in fair value of cash flow hedges	(24,985)		7,035		(17,950)
Amortization of net actuarial losses	159		(45)		114
Amortization of net prior service costs	10		(3)		7
Net change in other comprehensive income for defined benefit postretirement plans (1)	169		(48)		121
Total other comprehensive loss	$	(106,435)	$	26,050	$	(80,385)

	Three Months Ended March 31, 2021
	Pre-Tax Amount		Tax (Expense) Benefit		After Tax Amount
	(Dollars in thousands)
Change in fair value of securities available for sale	$	(10,361)	$	2,587	$	(7,774)
Less: net security losses reclassified into other noninterest expense	—		—		—
Net change in fair value of securities available for sale	(10,361)		2,587		(7,774)
Change in fair value of cash flow hedges	(4,779)		1,344		(3,435)
Less: net cash flow hedge gains reclassified into interest income or interest expense	4,380		(1,232)		3,148
Net change in fair value of cash flow hedges	(9,159)		2,576		(6,583)
Net unamortized gain related to defined benefit pension and other postretirement adjustments arising during the period	653		(184)		469
Amortization of net actuarial losses	442		(124)		318
Amortization of net prior service costs	44		(12)		32
Net change in other comprehensive income for defined benefit postretirement plans (1)	1,139		(320)		819
Total other comprehensive loss	$	(18,381)	$	4,843	$	(13,538)

(1)The amortization of prior service costs is included in the computation of net periodic pension cost as disclosed in Note 14 "Employee Benefit Plans" within the Notes to the Consolidated Financial Statements included in Item 8 of the Company's 2021 Form 10-K.

Information on the Company’s accumulated other comprehensive income (loss), net of tax, is comprised of the following components as of the dates indicated:

	Unrealized Gain (Loss) on Securities		Unrealized Gain (Loss) on Cash Flow Hedge		Defined Benefit Postretirement Plans		Accumulated Other Comprehensive Income (Loss)
	(Dollars in thousands)
	2022
Beginning balance: January 1, 2022	$	(9,667)	$	14,137	$	(2,287)	$	2,183
Net change in other comprehensive income (loss)	(62,556)		(17,950)		121		(80,385)
Ending balance: March 31, 2022	$	(72,223)	$	(3,813)	$	(2,166)	$	(78,202)
	2021
Beginning balance: January 1, 2021	$	13,255	$	33,276	$	(5,836)	$	40,695
Net change in other comprehensive income (loss)	(7,774)		(6,583)		819		(13,538)
Ending balance: March 31, 2021	$	5,481	$	26,693	$	(5,017)	$	27,157

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Commitments and contingencies

3 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

COMMITMENTS AND CONTINGENCIES

Financial Instruments with Off-Balance Sheet Risk

    In the normal course of business, the Company enters into various transactions to meet the financing needs of its customers, which, in accordance with GAAP, are not included in its consolidated balance sheets. These transactions include commitments to extend credit and standby letters of credit, and loan exposures with recourse, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. The Company minimizes its exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures.

    The Company enters into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of these commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding.

The Company has certain loan exposures for which there is recourse. These loan relationships could require the Company to repurchase or cover certain losses per agreements for certain loans that are either sold or referred to third parties.

    Standby letters of credit are written conditional commitments issued to guarantee the performance of a customer to a third party. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount of the commitment. If the commitment were funded, the Company would be entitled to seek recovery from the customer. The Company’s policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

    The fees collected in connection with the issuance of standby letters of credit are representative of the fair value of the Company's obligation undertaken in issuing the guarantee. In accordance with applicable accounting standards related to guarantees, fees collected in connection with the issuance of standby letters of credit are deferred. The fees are then recognized in income proportionately over the life of the standby letter of credit agreement. The deferred standby letter of credit fees represent the fair value of the Company's potential obligations under the standby letter of credit guarantees.

    The following table summarizes the above financial instruments at the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Commitments to extend credit	$	4,480,447	$	4,535,895
Standby letters of credit	24,416		24,412
Deferred standby letter of credit fees	171		124
Loan exposures sold with recourse	186,426		202,717

Lease Commitments

The Company leases office space, space for ATM locations, and certain branch locations under noncancellable operating leases. Several of these leases contain renewal options to extend lease terms for a period of 1 to 20 years. During the three months ended March 31, 2022, the Company recognized approximately $4.4 million in costs associated with several terminated leased locations acquired from Meridian that were subsequently exited. These costs are reflected within merger and acquisition expense in the Consolidated Statement of Income.

There has been no significant change in the future minimum lease payments payable by the Company since December 31, 2021. See the Company's 2021 Form 10-K for information regarding leases and other commitments.

Other Contingencies

At March 31, 2022, the Bank was involved in pending lawsuits that arose in the ordinary course of business. Management has reviewed these pending lawsuits with legal counsel and has taken into consideration the view of counsel as to their outcome. In the opinion of management, the final disposition of pending lawsuits is not expected to have a material adverse effect on the Company’s financial position or results of operations.

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Subsequent Events	3 Months Ended
	Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS On October 29, 2021, the Company sold one large commercial and industrial loan relationship, the aggregate balance of which totaled $15.8 million as of March 31, 2022 and was included within non-performing assets. The Company expects to recognize a gain of approximately $2.5 million based on proceeds from the sale.

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Basis of Presentation Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Accounting Policy

Independent Bank Corp. (the “Company”) is a state chartered, federally registered bank holding company, incorporated in 1985. The Company is the sole stockholder of Rockland Trust Company (“Rockland Trust” or the “Bank”), a Massachusetts trust company chartered in 1907.

All material intercompany balances and transactions have been eliminated in consolidation. Certain previously reported amounts have been reclassified to conform to the current year’s presentation.

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation of the financial statements, primarily consisting of normal recurring adjustments, have been included. Results for the three months ended March 31, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022 or any other interim period.

For further information, refer to the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (the "2021 Form 10-K").

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Securities (Tables)

3 Months Ended

Mar. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Equity securities gains and losses [Table Text Block]

	Three Months Ended
	March 31
	2022		2021
	Dollars in thousands
Net gains (losses) recognized during the period on equity securities	$	(627)	$	316
Less: net gains recognized during the period on equity securities sold during the period	4		29
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date	$	(631)	$	287

Debt Securities, Available-for-sale [Table Text Block]

The following table summarizes the amortized cost, allowance for credit losses, and fair value of available for sale securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:

	March 31, 2022										December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	231,485	$	44	$	(15,594)	$	—	$	215,935	$	217,393	$	990	$	(2,901)	$	—	$	215,482
U.S. treasury securities	873,608		—		(51,275)		—		822,333		873,467		172		(12,191)		—		861,448
Agency mortgage-backed securities	421,751		670		(24,436)		—		397,985		364,955		4,512		(5,534)		—		363,933
Agency collateralized mortgage obligations	49,759		39		(796)		—		49,002		78,966		1,282		(571)		—		79,677
State, county, and municipal securities	192		8		—		—		200		192		11		—		—		203
Single issuer trust preferred securities issued by banks	489		—		—		—		489		489		2		—		—		491
Pooled trust preferred securities issued by banks and insurers	1,199		—		(200)		—		999		1,199		—		(199)		—		1,000
Small business administration pooled securities	68,455		48		(2,715)		—		65,788		47,075		1,839		—		—		48,914
Total available for sale securities	$	1,646,938	$	809	$	(95,016)	$	—	$	1,552,731	$	1,583,736	$	8,808	$	(21,396)	$	—	$	1,571,148

Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]

These available for sale securities are aggregated by major security type and length of time that individual securities have been in a continuous unrealized loss position:

	March 31, 2022
		Less than 12 months				12 months or longer				Total
	# of  holdings	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
U.S. government agency securities	8	$	180,613	$	(13,459)	$	22,798	$	(2,135)	$	203,411	$	(15,594)
U.S. treasury securities	18	822,333		(51,275)		—		—		822,333		(51,275)
Agency mortgage-backed securities	73	242,172		(13,870)		88,670		(10,566)		330,842		(24,436)
Agency collateralized mortgage obligations	10	45,455		(796)		—		—		45,455		(796)
Pooled trust preferred securities issued by banks and insurers	1	—		—		999		(200)		999		(200)
Small business administration pooled securities	7	60,416		(2,715)		—		—		60,416		(2,715)
Total impaired available for sale securities	117	$	1,350,989	$	(82,115)	$	112,467	$	(12,901)	$	1,463,456	$	(95,016)
	December 31, 2021
		Less than 12 months				12 months or longer				Total
	# of  holdings	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
U.S. government agency securities	6	$	160,913	$	(2,901)	$	—	$	—	$	160,913	$	(2,901)
U.S. treasury securities	17	811,993		(12,191)		—		—		811,993		(12,191)
Agency mortgage-backed securities	12	214,678		(5,534)		—		—		214,678		(5,534)
Agency collateralized mortgage obligations	1	22,960		(571)		—		—		22,960		(571)
Pooled trust preferred securities issued by banks and insurers	1	—		—		1,000		(199)		1,000		(199)
Total impaired available for sale securities	37	$	1,210,544	$	(21,197)	$	1,000	$	(199)	$	1,211,544	$	(21,396)

Debt Securities, Held-to-maturity [Table Text Block]

The following table summarizes the amortized cost, fair value and allowance for credit losses of held to maturity securities and the corresponding amounts of gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of the dates indicated:

	March 31, 2022										December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Allowance for credit losses		Fair Value
	(Dollars in thousands)
U.S. government agency securities	$	32,555	$	—	$	(1,574)	$	—	$	30,981	$	32,987	$	—	$	(441)	$	—	$	32,546
U.S. treasury securities	100,576		—		(5,980)		—		94,596		102,560		6		(324)		—		102,242
Agency mortgage-backed securities	550,333		843		(29,993)		—		521,183		493,012		8,495		(4,271)		—		497,236
Agency collateralized mortgage obligations	576,964		189		(34,587)		—		542,566		415,736		3,232		(10,123)		—		408,845
Single issuer trust preferred securities issued by banks	1,500		8		—		—		1,508		1,500		8		—		—		1,508
Small business administration pooled securities	20,513		—		(409)		—		20,104		21,023		733		—		—		21,756
Total held to maturity securities	$	1,282,441	$	1,040	$	(72,543)	$	—	$	1,210,938	$	1,066,818	$	12,474	$	(15,159)	$	—	$	1,064,133

Schedule of contractual maturities of securities [Table Text Block]

A schedule of the contractual maturities of available for sale and held to maturity securities as of March 31, 2022 is presented below:

	Due in one year or less				Due after one year to five years				Due after five to ten years				Due after ten years				Total
	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	—	$	—	$	68,071	$	64,776	$	163,414	$	151,159	$	—	$	—	$	231,485	$	215,935
U.S. treasury securities	—		—		643,018		607,500		230,590		214,833		—		—		873,608		822,333
Agency mortgage-backed securities	19,824		19,844		80,449		78,736		158,349		144,812		163,129		154,593		421,751		397,985
Agency collateralized mortgage obligations	—		—		—		—		—		—		49,759		49,002		49,759		49,002
State, county, and municipal securities	—		—		192		200		—		—		—		—		192		200
Single issuer trust preferred securities issued by banks	—		—		—		—		—		—		489		489		489		489
Pooled trust preferred securities issued by banks and insurers	—		—		—		—		—		—		1,199		999		1,199		999
Small business administration pooled securities	—		—		—		—		—		—		68,455		65,788		68,455		65,788
Total available for sale securities	$	19,824	$	19,844	$	791,730	$	751,212	$	552,353	$	510,804	$	283,031	$	270,871	$	1,646,938	$	1,552,731
Held to maturity securities
U.S. government agency securities	$	—	$	—	$	32,555	$	30,981	$	—	$	—	$	—	$	—	$	32,555	$	30,981
U.S. treasury securities	—		—		49,740		46,985		50,836		47,611		—		—		100,576		94,596
Agency mortgage-backed securities	—		—		32,356		32,265		349,842		325,374		168,135		163,544		550,333		521,183
Agency collateralized mortgage obligations	—		—		—		—		34,215		32,252		542,749		510,314		576,964		542,566
Single issuer trust preferred securities issued by banks	—		—		—		—		1,500		1,508		—		—		1,500		1,508
Small business administration pooled securities	—		—		—		—		—		—		20,513		20,104		20,513		20,104
Total held to maturity securities	$	—	$	—	$	114,651	$	110,231	$	436,393	$	406,745	$	731,397	$	693,962	$	1,282,441	$	1,210,938
Total	$	19,824	$	19,844	$	906,381	$	861,443	$	988,746	$	917,549	$	1,014,428	$	964,833	$	2,929,379	$	2,763,669

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Loans, Allowance for Credit Losses and Credit Quality (Tables)

3 Months Ended

Mar. 31, 2022

Receivables [Abstract]

Financing Receivable, Allowance for Credit Loss [Table Text Block]

The following table summarizes the change in allowance for credit losses by loan category, and bifurcates the amount of loans allocated to each loan category for the period indicated:

	Three Months Ended March 31, 2022
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Small Business		Residential Real Estate		Home  Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	14,402	$	83,486	$	12,316	$	3,508	$	14,484	$	17,986	$	740	$	146,922
Charge-offs	—		—		—		(48)		—		(24)		(634)		(706)
Recoveries	13		3		—		26		—		26		234		302
(Release of) provision for credit losses	(246)		947		(449)		(327)		3,904		(6,238)		409		(2,000)
Ending balance (1)	$	14,169	$	84,436	$	11,867	$	3,159	$	18,388	$	11,750	$	749	$	144,518
	Three Months Ended March 31, 2021
	(Dollars in thousands)
	Commercial and Industrial		Commercial Real Estate		Commercial Construction		Small Business		Residential Real Estate		Home  Equity		Other Consumer		Total
Allowance for credit losses
Beginning balance	$	21,086	$	45,009	$	5,397	$	5,095	$	14,275	$	22,060	$	470	$	113,392
Charge-offs	(3,331)		—		—		(66)		—		—		(289)		(3,686)
Recoveries	64		57		—		11		1		13		197		343
(Release of) provision for credit losses	2,388		(718)		(129)		(1,419)		(1,320)		(1,357)		55		(2,500)
Ending balance (1)	$	20,207	$	44,348	$	5,268	$	3,621	$	12,956	$	20,716	$	433	$	107,549

(1)Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.4 million and $33.4 million as of March 31, 2022 and March 31, 2021, respectively.

Financing Receivable Credit Quality Indicators [Table Text Block]

The following table details the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of the dates indicated below:

	March 31, 2022
	2022		2021		2020		2019		2018		Prior		Revolving Loans		Revolving converted to Term		Total (1)
	(Dollars in thousands)
Commercial and industrial
Pass (2)	$	138,642	$	288,516	$	159,051	$	85,497	$	105,651	$	30,082	$	741,200	$	—	$	1,548,639
Potential weakness	629		746		1,402		1,423		88		1,113		4,097		—		9,498
Definite weakness - loss unlikely	403		1,253		—		57		420		2,684		3,238		—		8,055
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	139,674	$	290,515	$	160,453	$	86,977	$	106,159	$	33,879	$	748,535	$	—	$	1,566,192
Commercial real estate
Pass	$	226,907	$	1,548,212	$	1,254,460	$	867,980	$	830,148	$	2,431,434	$	135,980	$	522	$	7,295,643
Potential weakness	10,059		51,223		92,984		43,560		83,195		210,418		13,619		—		505,058
Definite weakness - loss unlikely	145		20,031		4,081		3,237		412		69,009		—		—		96,915
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	237,111	$	1,619,466	$	1,351,525	$	914,777	$	913,755	$	2,710,861	$	149,599	$	522	$	7,897,616
Commercial construction
Pass	$	82,805	$	400,932	$	440,129	$	100,066	$	30,145	$	34,952	$	34,416	$	—	$	1,123,445
Potential weakness	—		—		3,005		—		—		12,935		—		—		15,940
Definite weakness - loss unlikely	—		14,560		—		—		—		—		—		—		14,560
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	82,805	$	415,492	$	443,134	$	100,066	$	30,145	$	47,887	$	34,416	$	—	$	1,153,945
Small business
Pass	$	14,959	$	52,037	$	35,973	$	19,540	$	12,136	$	24,449	$	37,719	$	—	$	196,813
Potential weakness	—		183		435		376		196		277		761		—		2,228
Definite weakness - loss unlikely	—		—		601		20		7		283		453		—		1,364
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total small business	$	14,959	$	52,220	$	37,009	$	19,936	$	12,339	$	25,009	$	38,933	$	—	$	200,405
Residential real estate
Pass	$	177,524	$	446,985	$	209,293	$	106,746	$	111,601	$	650,555	$	—	$	—	$	1,702,704
Default	—		—		392		—		999		1,950		—		—		3,341
Total residential real estate	$	177,524	$	446,985	$	209,685	$	106,746	$	112,600	$	652,505	$	—	$	—	$	1,706,045
Home equity
Pass	$	13,376	$	64,981	$	61,198	$	35,075	$	31,458	$	137,315	$	678,867	$	1,519	$	1,023,789
Default	—		—		—		122		—		64		1,840		—		2,026
Total home equity	$	13,376	$	64,981	$	61,198	$	35,197	$	31,458	$	137,379	$	680,707	$	1,519	$	1,025,815
Other consumer
Pass	$	142	$	2,964	$	2,469	$	1,978	$	695	$	4,669	$	17,074	$	—	$	29,991
Default	—		9		4		—		—		3		2		—		18
Total other consumer	$	142	$	2,973	$	2,473	$	1,978	$	695	$	4,672	$	17,076	$	—	$	30,009
Total	$	665,591	$	2,892,632	$	2,265,477	$	1,265,677	$	1,207,151	$	3,612,192	$	1,669,266	$	2,041	$	13,580,027

	March 31, 2021
	2021		2020		2019		2018		2017		Prior		Revolving Loans		Revolving converted to Term		Total (1)
	(Dollars in thousands)
Commercial and industrial
Pass (2)	$	420,682	$	724,577	$	127,454	$	88,970	$	25,737	$	27,123	$	589,448	$	—	$	2,003,991
Potential weakness	3,424		14,991		2,636		2,148		4,288		3,205		12,252		—		42,944
Definite weakness - loss unlikely	17,912		663		1,116		1,327		2,768		482		6,927		—		31,195
Partial loss probable	—		—		—		—		—		143		8,398		—		8,541
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial and industrial	$	442,018	$	740,231	$	131,206	$	92,445	$	32,793	$	30,953	$	617,025	$	—	$	2,086,671
Commercial real estate
Pass	$	214,573	$	1,043,424	$	687,959	$	432,728	$	524,194	$	966,331	$	16,196	$	—	$	3,885,405
Potential weakness	390		29,218		53,849		31,274		18,981		86,160		13,612		—		233,484
Definite weakness - loss unlikely	3,590		22,536		3,754		3,474		9,892		15,482		—		—		58,728
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial real estate	$	218,553	$	1,095,178	$	745,562	$	467,476	$	553,067	$	1,067,973	$	29,808	$	—	$	4,177,617
Commercial construction
Pass	$	28,323	$	239,954	$	142,076	$	28,189	$	23,313	$	6,628	$	19,934	$	—	$	488,417
Potential weakness	—		17,544		9,691		—		—		—		190		—		27,425
Definite weakness - loss unlikely	—		—		—		520		—		—		—		—		520
Partial loss probable	—		—		—		—		—		—		—		—		—
Definite loss	—		—		—		—		—		—		—		—		—
Total commercial construction	$	28,323	$	257,498	$	151,767	$	28,709	$	23,313	$	6,628	$	20,124	$	—	$	516,362
Small business
Pass	$	10,307	$	41,418	$	25,817	$	17,750	$	12,624	$	29,309	$	33,658	$	—	$	170,883
Potential weakness	—		—		389		204		10		202		634		—		1,439
Definite weakness - loss unlikely	—		677		51		59		17		301		758		—		1,863
Partial loss probable	—		—		—		—		—		—		26		—		26
Definite loss	—		—		—		—		—		—		—		—		—
Total small business	$	10,307	$	42,095	$	26,257	$	18,013	$	12,651	$	29,812	$	35,076	$	—	$	174,211
Residential real estate
Pass	$	80,657	$	212,891	$	126,359	$	133,150	$	130,580	$	554,848	$	—	$	—	$	1,238,485
Default	—		—		—		427		—		2,877		—		—		3,304
Total residential real estate	$	80,657	$	212,891	$	126,359	$	133,577	$	130,580	$	557,725	$	—	$	—	$	1,241,789
Home equity
Pass	$	23,583	$	77,497	$	51,398	$	46,648	$	48,132	$	140,376	$	636,881	$	1,762	$	1,026,277
Default	—		—		—		—		—		210		2,008		—		2,218
Total home equity	$	23,583	$	77,497	$	51,398	$	46,648	$	48,132	$	140,586	$	638,889	$	1,762	$	1,028,495
Other consumer
Pass	$	46	$	540	$	326	$	146	$	620	$	6,800	$	12,939	$	—	$	21,417
Default	—		—		—		—		15		111		3		—		129
Total other consumer	$	46	$	540	$	326	$	146	$	635	$	6,911	$	12,942	$	—	$	21,546

Total $ 803,487  $ 2,425,930  $ 1,232,875  $ 787,014  $ 801,171  $ 1,840,588  $ 1,353,864  $ 1,762  $ 9,246,691 

(1)Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

(2)Loans originated as part of the Paycheck Protection Program ("PPP") established by the CARES Act are included within commercial and industrial under the 2021 and 2020 vintage year and "pass" category as these loans are 100% guaranteed by the U.S. Government. Outstanding PPP loans totaled $99.6 million and $846.3 million as of March 31, 2022 and 2021, respectively.

Foreclosed Residential Real Estate Property [Table Text Block]

The following table shows information regarding foreclosed residential real estate property at the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Foreclosed residential real estate property held by the creditor	$	—	$	—
Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$	2,287	$	1,426

Financing Receivable Credit Quality Indicators For Consumer And Residential Portfolio Table Text Block

The following table shows the weighted average FICO scores and the weighted average combined LTV ratios at the dates indicated below:

	March 31 2022		December 31 2021
Residential real estate portfolio
FICO score (re-scored)(1)	752		749
LTV (re-valued)(2)	54.5	%	54.4	%
Home equity portfolio
FICO score (re-scored)(1)	773		772
LTV (re-valued)(2)(3)	42.3	%	42.4	%

(1)The average FICO scores at March 31, 2022 are based upon rescores from March 2022, as available for previously originated loans, or origination score data for loans booked in March 2022.  The average FICO scores at December 31, 2021 were based upon rescores available from December 2021, as available for previously originated loans, or origination score data for loans booked in December 2021.

(2)The combined LTV ratios for March 31, 2022 are based upon updated automated valuations as of February 2022, when available, and/or the most current valuation data available.  The combined LTV ratios for December 31, 2021 were based upon updated automated valuations as of November 2021, when available, and/or the most current valuation data available as of such date.  The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained.  If no new information is available, the valuation will default to the previously obtained data or most recent appraisal.

(3)For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.

Financing Receivable, Past Due [Table Text Block]

The following tables show the age analysis of past due financing receivables as of the dates indicated:

	March 31, 2022
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables		Amortized Cost >90 Days and  Accruing
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	4	$	276	4	$	3,399	—	$	—	8	$	3,675	$	1,562,517	$	1,566,192	$	—
Commercial real estate	10	6,530		3	7,897		2	7,009		15	21,436		7,876,180		7,897,616		—
Commercial construction	3	2,592		—	—		—	—		3	2,592		1,151,353		1,153,945		—
Small business	7	85		2	6		2	8		11	99		200,306		200,405		—
Residential real estate	9	2,890		6	1,546		73	3,341		88	7,777		1,698,268		1,706,045		—
Home equity	11	834		5	81		23	2,026		39	2,941		1,022,874		1,025,815		—
Other consumer (1)	384	541		18	157		8	18		410	716		29,293		30,009		—
Total	428	$	13,748	38	$	13,086	108	$	12,402	574	$	39,236	$	13,540,791	$	13,580,027	$	—

	December 31, 2021
	30-59 days			60-89 days			90 days or more			Total Past Due					Total Financing Receivables		Recorded Investment >90 Days and  Accruing
	Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Number of Loans	Principal Balance		Current
	(Dollars in thousands)
Loan Portfolio
Commercial and industrial	7	$	143	2	$	252	2	$	24	11	$	419	$	1,562,860	$	1,563,279	$	—
Commercial real estate	15	32,845		—	—		4	1,339		19	34,184		7,958,160		7,992,344		—
Commercial construction	—	—		—	—		—	—		—	—		1,165,457		1,165,457		—
Small business	11	136		6	53		4	24		21	213		192,976		193,189		—
Residential real estate	12	2,709		5	714		76	3,922		93	7,345		1,597,341		1,604,686		—
Home equity	15	1,375		6	381		21	1,671		42	3,427		1,036,184		1,039,611		—
Other consumer (1)	458	719		41	277		16	112		515	1,108		27,612		28,720		—
Total	518	$	37,927	60	$	1,677	123	$	7,092	701	$	46,696	$	13,540,590	$	13,587,286	$	—

(1)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

Financing Receivable, Nonaccrual [Table Text Block]

The following table shows information regarding nonaccrual loans as of the dates indicated:

	Nonaccrual Balances
	March 31, 2022						December 31, 2021
	With Allowance for Credit Losses		Without Allowance for Credit Losses		Total		With Allowance for Credit Losses		Without Allowance for Credit Losses		Total
	(Dollars in thousands)
Commercial and industrial	$	3,498	$	19	$	3,517	$	3,420	$	19	$	3,439
Commercial real estate	15,835		24,635		40,470		10,870		—		10,870
Small business	20		—		20		44		—		44
Residential real estate	7,861		596		8,457		8,580		602		9,182
Home equity	3,761		—		3,761		3,781		—		3,781
Other consumer	393		—		393		504		—		504
Total nonaccrual loans (1)	$	31,368	$	25,250	$	56,618	$	27,199	$	621	$	27,820

(1)Included in these amounts were $2.0 million of nonaccruing TDRs at both March 31, 2022 and December 31, 2021, respectively.

Financing Receivable, Troubled Debt Restructuring [Table Text Block]

The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated:

		March 31, 2022		December 31, 2021
	(Dollars in thousands)
TDRs on accrual status		$	13,288	$	14,635
TDRs on nonaccrual		1,972		1,993
Total TDRs		$	15,260	$	16,628
Additional commitments to lend to a borrower who has been a party to a TDR		$	174	$	190

Schedule of Debtor Troubled Debt Restructuring, Subsequent Periods [Table Text Block]

The following table shows the TDRs which occurred during the three months ended March 31, 2021 and the change in the recorded investment subsequent to the modifications occurring:

	Number of Contracts	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
	(Dollars in thousands)
Troubled debt restructurings
Commercial and industrial	1	$	14,148	$	14,148
Commercial real estate	5	3,964		3,964
Small business	1	100		100
Total (1)	7	$	18,212	$	18,212

(1)The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.

Troubled Debt Restructurings On Financing Receivables Post Modifications Table Text Block

The following table shows the Company’s post-modification balance of TDRs listed by type of modification for the three months ended March 31, 2021:

	Post-Modification Balance of TDRs
	(Dollars in thousands)
Combination rate and maturity	14,148
Extended maturity	4,064
Total	$	18,212

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Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

The Company made the following awards of time vested restricted stock:

Date	Shares Granted	Plan	Grant Date Fair Value Per Share		Vesting Period
2/17/2022	52,100	2005 Employee Stock Plan	$	84.70	Ratably over 5 years from grant date

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Derivatives and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Details of derivative positions for interest rate swaps which qualify as hedges for accounting purposes

The following tables reflect the Company's derivative positions as of the dates indicated below for interest rate derivatives which qualify as cash flow hedges for accounting purposes:

March 31, 2022
				Weighted Average Rate
	Notional Amount		Average Maturity	Current Rate Received		Pay Fixed Swap Rate		Fair Value
	(in thousands)		(in years)					(in thousands)
Interest rate swaps on borrowings	$	25,000	0.38	0.47	%	1.88	%	$	(124)
				Current Rate Paid		Receive Fixed Swap Rate
Interest rate swaps on loans	550,000		2.33	0.32	%	2.16	%	(4,785)
				Current Rate Paid		Receive Fixed Swap Rate Cap - Floor
Interest rate collars on loans	350,000		1.65	0.33	%	2.72% - 2.26%		703
Total	$	925,000						$	(4,206)
December 31, 2021
				Weighted Average Rate
	Notional Amount		Average Maturity	Current Rate Received		Pay Fixed Swap Rate		Fair Value
	(in thousands)		(in years)					(in thousands)
Interest rate swaps on borrowings	$	25,000	0.62	0.16	%	1.88	%	$	(294)
				Current Rate Paid		Receive Fixed Swap Rate
Interest rate swaps on loans	550,000		2.58	0.11	%	2.16	%	11,830
				Current Rate Paid		Receive Fixed Swap Rate Cap - Floor
Interest rate collars on loans	400,000		1.66	0.11	%	2.73% - 2.20%		9,383
Total	$	975,000						$	20,919

Summary of customer related derivative positions, not designated as hedging

The following table reflects the Company’s customer related derivative positions as of the dates indicated below for those derivatives not designated as hedging:

		Notional Amount Maturing
	Number of  Positions  (1)	Less than 1 year		Less than 2 years		Less than 3 years		Less than 4 years		Thereafter		Total		Fair Value
	March 31, 2022
	(Dollars in thousands)
Loan level swaps
Receive fixed, pay variable	295	$	63,981	$	108,216	$	177,574	$	244,445	$	1,023,964	$	1,618,180	$	(26,666)
Pay fixed, receive variable	295	63,981		108,216		177,574		244,445		1,023,964		1,618,180		26,666
Foreign exchange contracts
Buys foreign currency, sells U.S. currency	44	126,627		2,535		—		—		—		129,162		(5,667)
Buys U.S. currency, sells foreign currency	44	126,627		2,535		—		—		—		129,162		5,739
Risk participation agreements
Participation out	11	—		2,625		24,538		—		68,601		95,764		215
Participation in	8	29,797		28,021		—		—		21,463		79,281		(54)
		Notional Amount Maturing
	Number of  Positions  (1)	Less than 1 year		Less than 2 years		Less than 3 years		Less than 4 years		Thereafter		Total		Fair Value
	December 31, 2021
	(Dollars in thousands)
Loan level swaps
Receive fixed, pay variable	296	$	37,589	$	139,844	$	123,507	$	260,953	$	1,060,276	$	1,622,169	$	55,984
Pay fixed, receive variable	296	37,589		139,844		123,507		260,953		1,060,276		1,622,169		(55,982)
Foreign exchange contracts
Buys foreign currency, sells U.S. currency	52	149,588		8,784		—		—		—		158,372		5,734
Buys U.S. currency, sells foreign currency	52	149,588		8,784		—		—		—		158,372		(5,734)
Risk participation agreements
Participation out	11	—		2,635		7,138		24,539		68,408		102,720		279
Participation in	7	29,972		28,235		—		—		8,339		66,546		(55)

(1)The Company may enter into one dealer swap agreement which offsets multiple commercial borrower swap agreements.

Fair value of derivative financial instruments as well as their classification on the balance sheet

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the balance sheet and the potential effect of netting arrangements on its financial position, at the dates indicated:

	Asset Derivatives (1)						Liability Derivatives (2)
	Fair Value at			Fair Value at			Fair Value at			Fair Value at
	March 31 2022			December 31 2021			March 31 2022			December 31 2021
	(Dollars in thousands)
Derivatives designated as hedges
Interest rate derivatives	$	5,271	(3)	$	21,951	(3)	$	9,477	(4)	$	1,032	(4)
Derivatives not designated as hedges
Customer Related Positions
Loan level derivatives	50,418		(3)	68,726		(3)	50,418		(4)	68,724		(4)
Foreign exchange contracts	6,007			6,147			5,935			6,147
Risk participation agreements	215			279			54			55
Mortgage Derivatives
Interest rate lock commitments	58			753			—			—
Forward sale loan commitments	27			56			—			—
Forward sale hedge commitments	248			—			—			57
Total derivatives not designated as hedges	56,973			75,961			56,407			74,983
Total	62,244			97,912			65,884			76,015
Netting Adjustments (5)	(27,893)			(5,727)			6,478			6,769
Net Derivatives on the Balance Sheet	34,351			92,185			59,406			69,246
Financial instruments (6)	10,062			22,378			10,062			22,378
Cash collateral pledged (received)	—			—			4,587			33,838
Net Derivative Amounts	$	24,289		$	69,807		$	44,757		$	13,030

(1)All asset derivatives are reflected in other assets on the balance sheet.

(2)All liability derivatives are reflected in other liabilities on the balance sheet.

(3)Approximately $878,000 and $226,000 of accrued interest receivable is included in the fair value of the interest rate and loan level asset derivatives, respectively, as of March 31, 2022, in comparison to accrued interest receivable of approximately $1.2 million and $1.5 million, respectively, as of December 31, 2021.

(4)As of March 31, 2022, approximately $216,000 of accrued interest receivable is included in the fair value of interest rate derivative liabilities and approximately $225,000 of accrued interest payable is included in the fair value of loan level liability derivatives. Accrued interest payable of approximately $5,000 and $1.5 million is included in the fair value of the interest rate and loan level derivative liabilities, respectively, as of December 31, 2021.

(5)Netting adjustments represent the amounts recorded to convert derivative assets and liabilities cleared through CME from a gross basis to a net basis, inclusive of the variation margin payments, in accordance with applicable accounting guidance. As displayed in the table above, derivatives that cleared through the CME were either in a net asset position or a net liability position as of March 31, 2022.

(6)Reflects offsetting derivative positions with the same counterparty that are not netted on the balance sheet.

Effect of derivative financial instruments included in OCI and current earnings

The table below presents the effect of the Company’s derivative financial instruments included in OCI and current earnings for the periods indicated:

	Three Months Ended
	March 31
	2022		2021
	(Dollars in thousands)
Derivatives designated as hedges
Gain in OCI on derivatives (effective portion), net of tax	$	(17,950)	$	(6,583)
Gain reclassified from OCI into interest income or interest expense (effective portion)	$	4,505	$	4,380
Loss reclassified from OCI into noninterest expense (loss on termination)	$	—	$	—
Interest expense	$	—	$	—
Other expense	—		—
Total	$	—	$	—
Derivatives not designated as hedges
Changes in fair value of customer related positions
Other income	$	89	$	6
Other expense	(83)		(283)
Changes in fair value of mortgage derivatives
Mortgage banking income	(419)		(2,324)
Total	$	(413)	$	(2,601)

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

Assets and liabilities measured at fair value on a recurring and nonrecurring basis were as follows as of the dates indicated:

			Fair Value Measurements at Reporting Date Using
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2022
	(Dollars in thousands)
Recurring fair value measurements
Assets
Trading securities	$	3,956	$	3,956	$	—	$	—
Equity securities	22,611		22,611		—		—
Securities available for sale
U.S. government agency securities	215,935		—		215,935		—
U.S. treasury securities	822,333		—		822,333		—
Agency mortgage-backed securities	397,985		—		397,985		—
Agency collateralized mortgage obligations	49,002		—		49,002		—
State, county, and municipal securities	200		—		200		—
Single issuer trust preferred securities issued by banks and insurers	489		—		489		—
Pooled trust preferred securities issued by banks and insurers	999		—		999		—
Small business administration pooled securities	65,788		—		65,788		—
Loans held for sale	6,144		—		6,144		—
Derivative instruments	62,244		—		62,244		—
Liabilities
Derivative instruments	65,884		—		65,884		—
Total recurring fair value measurements	$	1,581,802	$	26,567	$	1,555,235	$	—
Nonrecurring fair value measurements
Assets
Individually assessed collateral dependent loans (1)	$	25,231	$	—	$	—	$	25,231
Total nonrecurring fair value measurements	$	25,231	$	—	$	—	$	25,231

			Fair Value Measurements at Reporting Date Using
	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	December 31, 2021
	(Dollars in thousands)
Recurring fair value measurements
Assets
Trading securities	$	3,720	$	3,720	$	—	$	—
Equity securities	23,173		23,173		—		—
Securities available for sale
U.S. government agency securities	215,482		—		215,482		—
U.S. treasury securities	861,448		—		861,448		—
Agency mortgage-backed securities	363,933		—		363,933		—
Agency collateralized mortgage obligations	79,677		—		79,677		—
State, county, and municipal securities	203		—		203		—
Single issuer trust preferred securities issued by banks and insurers	491		—		491		—
Pooled trust preferred securities issued by banks and insurers	1,000		—		1,000		—
Small business administration pooled securities	48,914		—		48,914		—
Loans held for sale	24,679		—		24,679		—
Derivative instruments	97,912		—		97,912		—
Liabilities
Derivative instruments	76,015		—		76,015		—
Total recurring fair value measurements	$	1,644,617	$	26,893	$	1,617,724	$	—
Nonrecurring fair value measurements
Assets
Individually assessed collateral dependent loans (1)	$	1,174	$	—	$	—	$	1,174
Total nonrecurring fair value measurements	$	1,174	$	—	$	—	$	1,174

(1) The carrying value of individually assessed collateral dependent loans is based on the lower of amortized cost or fair value of the underlying collateral less costs to sell. The fair value of the underlying collateral is generally determined through independent appraisals, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

The estimated fair values and related carrying amounts for assets and liabilities

The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the dates indicated:

					Fair Value Measurements at Reporting Date Using
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2022
	(Dollars in thousands)
Financial assets
Securities held to maturity (a)
U.S. government agency securities	$	32,555	$	30,981	$	—	$	30,981	$	—
U.S. treasury securities	100,576		94,596		—		94,596		—
Agency mortgage-backed securities	550,333		521,183		—		521,183		—
Agency collateralized mortgage obligations	576,964		542,566		—		542,566		—
Single issuer trust preferred securities issued by banks	1,500		1,508		—		1,508		—
Small business administration pooled securities	20,513		20,104		—		20,104		—
Loans, net of allowance for credit losses (b)	13,410,278		13,301,406		—		—		13,301,406
Federal Home Loan Bank stock (c)	11,407		11,407		—		11,407		—
Cash surrender value of life insurance policies (d)	291,192		291,192		—		291,192		—
Financial liabilities
Deposit liabilities, other than time deposits (e)	$	15,364,782	$	15,364,782	$	—	$	15,364,782	$	—
Time certificates of deposits (f)	1,398,610		1,384,450		—		1,384,450		—
Federal Home Loan Bank borrowings (f)	25,660		25,626		—		25,626		—
Junior subordinated debentures (g)	62,854		63,654		—		63,654		—
Subordinated debentures (f)	49,814		43,754		—		—		43,754

					Fair Value Measurements at Reporting Date Using
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	December 31, 2021
	(Dollars in thousands)
Financial assets
Securities held to maturity (a)
U.S. government agency securities	$	32,987	$	32,546	$	—	$	32,546	$	—
U.S. treasury securities	102,560		102,242		—		102,242		—
Agency mortgage-backed securities	493,012		497,236		—		497,236		—
Agency collateralized mortgage obligations	415,736		408,845		—		408,845		—
Single issuer trust preferred securities issued by banks	1,500		1,508		—		1,508		—
Small business administration pooled securities	21,023		21,756		—		21,756		—
Loans, net of allowance for credit losses (b)	13,439,190		13,389,515		—		—		13,389,515
Federal Home Loan Bank stock (c)	11,407		11,407		—		11,407		—
Cash surrender value of life insurance policies (d)	289,304		289,304		—		289,304		—
Financial liabilities
Deposit liabilities, other than time deposits (e)	$	15,385,894	$	15,385,894	$	—	$	15,385,894	$	—
Time certificates of deposits (f)	1,531,150		1,529,857		—		1,529,857		—
Federal Home Loan Bank borrowings (f)	25,667		25,663		—		25,663		—
Long-term borrowings (f)	14,063		13,989		—		13,989		—
Junior subordinated debentures (g)	62,853		67,019		—		67,019		—
Subordinated debentures (f)	49,791		45,532		—		—		45,532

(a)The fair values presented are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments and/or discounted cash flow analysis.

(b)Fair value of loans is measured using the exit price valuation method, determined primarily by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities or cash flows, while incorporating liquidity and credit assumptions. Additionally, this amount excludes individually assessed collateral dependent loans, which are deemed to be marked to fair value on a nonrecurring basis.

(c)Federal Home Loan Bank stock has no quoted market value and is carried at cost; therefore the carrying amount approximates fair value.

(d)Cash surrender value of life insurance policies is recorded at its cash surrender value (or the amount that can be realized upon surrender of the policy), therefore, carrying amount approximates fair value.

(e)Fair value of demand deposits, savings and interest checking accounts and money market deposits is the amount payable on demand at the reporting date.

(f)Fair value was determined by discounting anticipated future cash payments using rates currently available for instruments with similar remaining maturities.

(g)Fair value was determined based upon market prices of securities with similar terms and maturities.

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Revenue Recognition Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

The following table presents the revenue streams that the Company has disaggregated as of the periods indicated:

	Three Months Ended
	March 31 2022		March 31 2021
	(Dollars in thousands)
Deposit account fees (inclusive of cash management fees)	$	5,493	$	3,584
Interchange fees	2,472		1,903
ATM fees	841		625
Investment management - wealth management and advisory services	7,904		7,402
Investment management - retail investments and insurance revenue	769		902
Merchant processing income	378		320
Credit card income	372		236
Other noninterest income	1,396		1,125
Total noninterest income in-scope of ASC 606	19,625		16,097
Total noninterest income out-of-scope of ASC 606	6,647		9,149
Total noninterest income	$	26,272	$	25,246

Contract with Customer, Asset and Liability [Table Text Block]

The following table provides the amount of investment management revenue earned but not received as of the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Receivables, included in other assets	$	5,310	$	5,385

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Comprehensive Income/Loss (Tables)

3 Months Ended

Mar. 31, 2022

Equity [Abstract]

Comprehensive income

The amortization of prior service costs is included in the computation of net periodic pension cost as disclosed in Note 14 "Employee Benefit Plans" within the Notes to the Consolidated Financial Statements included in Item 8 of the Company's 2021 Form 10-K.

Company's accumulated other comprehensive loss, net of tax

Information on the Company’s accumulated other comprehensive income (loss), net of tax, is comprised of the following components as of the dates indicated:

	Unrealized Gain (Loss) on Securities		Unrealized Gain (Loss) on Cash Flow Hedge		Defined Benefit Postretirement Plans		Accumulated Other Comprehensive Income (Loss)
	(Dollars in thousands)
	2022
Beginning balance: January 1, 2022	$	(9,667)	$	14,137	$	(2,287)	$	2,183
Net change in other comprehensive income (loss)	(62,556)		(17,950)		121		(80,385)
Ending balance: March 31, 2022	$	(72,223)	$	(3,813)	$	(2,166)	$	(78,202)
	2021
Beginning balance: January 1, 2021	$	13,255	$	33,276	$	(5,836)	$	40,695
Net change in other comprehensive income (loss)	(7,774)		(6,583)		819		(13,538)
Ending balance: March 31, 2021	$	5,481	$	26,693	$	(5,017)	$	27,157

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]

The following table summarizes the above financial instruments at the dates indicated:

	March 31, 2022		December 31, 2021
	(Dollars in thousands)
Commitments to extend credit	$	4,480,447	$	4,535,895
Standby letters of credit	24,416		24,412
Deferred standby letter of credit fees	171		124
Loan exposures sold with recourse	186,426		202,717

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Securities Securities (Equity gains and losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Equity securities gains and losses [Abstract]
Equity Securities, FV-NI, Gain (Loss)	$ (627)	$ 316
Equity Securities, FV-NI, Realized Gain (Loss)	4	29
Equity Securities, FV-NI, Unrealized Gain (Loss)	$ (631)	$ 287

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Securities (Reconciliation of fair value of available for sale securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	$ 809	$ 8,808
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(95,016)	(21,396)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	1,552,731	1,571,148
Debt Securities, Available-for-sale, Amortized Cost	1,646,938	1,583,736
U.S. government agency securities
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	44	990
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(15,594)	(2,901)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	215,935	215,482
Debt Securities, Available-for-sale, Amortized Cost	231,485	217,393
U.S. treasury securities
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax		172
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(51,275)	(12,191)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	822,333	861,448
Debt Securities, Available-for-sale, Amortized Cost	873,608	873,467
Agency mortgage-backed securities
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	670	4,512
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(24,436)	(5,534)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	397,985	363,933
Debt Securities, Available-for-sale, Amortized Cost	421,751	364,955
Agency Collateralized Mortgage Obligations [Member]
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	39	1,282
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(796)	(571)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	49,002	79,677
Debt Securities, Available-for-sale, Amortized Cost	49,759	78,966
US States and Political Subdivisions Debt Securities [Member]
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	8	11
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	200	203
Debt Securities, Available-for-sale, Amortized Cost	192	192
Single Issuer Trust Preferred Securities Issued by Banks and Insurers [Member]
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	2
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	489	491
Debt Securities, Available-for-sale, Amortized Cost	489	489
Pooled trust preferred securities issued by banks and insurers
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(200)	(199)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	999	1,000
Debt Securities, Available-for-sale, Amortized Cost	1,199	1,199
Small Business Administration Pooled Securities [Member]
Reconciliation of fair value of securities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	48	1,839
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(2,715)	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	65,788	48,914
Debt Securities, Available-for-sale, Amortized Cost	$ 68,455	$ 47,075

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Securities Securities (Available for sale securities in continuous unrealized loss position) (Details) $ in Thousands	Mar. 31, 2022 USD ($) holding	Dec. 31, 2021 USD ($) holding
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	117	37
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 1,350,989	$ 1,210,544
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(82,115)	(21,197)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	112,467	1,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(12,901)	(199)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,463,456	1,211,544
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 95,016	$ 21,396
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	73	12
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 242,172	$ 214,678
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(13,870)	(5,534)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	88,670	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(10,566)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	330,842	214,678
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 24,436	$ 5,534
Collateralized Debt Obligations [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	10	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 45,455	$ 22,960
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(796)	(571)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Unrealized Loss Position	45,455	22,960
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 796	$ 571
Pooled trust preferred securities issued by banks and insurers
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	1	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	999	1,000
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(200)	(199)
Debt Securities, Available-for-sale, Unrealized Loss Position	999	1,000
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 200	$ 199
Small Business Administration Pooled Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	7
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 60,416
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2,715)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Debt Securities, Available-for-sale, Unrealized Loss Position	60,416
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 2,715
U.S. government agency securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	8	6
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 180,613	$ 160,913
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(13,459)	(2,901)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	22,798	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2,135)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	203,411	160,913
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 15,594	$ 2,901
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	18	17
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 822,333	$ 811,993
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(51,275)	(12,191)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Unrealized Loss Position	822,333	811,993
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 51,275	$ 12,191

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Securities Securities (Reconciliation of amortized cost of held to maturity securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	$ 1,282,441	$ 1,066,818
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	1,040	12,474
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(72,543)	(15,159)
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	1,210,938	1,064,133
Small Business Administration Pooled Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	20,513	21,023
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	733
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(409)	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	20,104	21,756
Trust Preferred Securities Subject to Mandatory Redemption [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,500	1,500
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	8	8
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	0	0
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	1,508	1,508
Collateralized Debt Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	576,964	415,736
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	189	3,232
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(34,587)	(10,123)
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	542,566	408,845
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	550,333	493,012
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	843	8,495
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(29,993)	(4,271)
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	521,183	497,236
US Treasury Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	100,576	102,560
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	6
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(5,980)	(324)
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	94,596	102,242
U.S. government agency securities
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	32,555	32,987
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(1,574)	(441)
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt Securities, Held-to-maturity, Fair Value	$ 30,981	$ 32,546

XML

Securities (Schedule of Contractual Maturities of Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available for Sale, Fair Value
Debt Securities, Available-for-sale, Amortized Cost	$ 1,646,938	$ 1,583,736
Debt Securities, Available-for-sale	1,552,731	1,571,148
Held to Maturity, Fair Value
Debt Securities, Held-to-maturity	1,282,441	1,066,818
Held to Maturity, Fair Value, Total	1,210,938	1,064,133
Available for Sale Securities and Held to Maturity Securities Amortized Cost	2,929,379
Debt Securities, Available-for-sale and Held-to-maturity	2,763,669
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	19,824
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	19,844
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	906,381
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	861,443
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	988,746
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	917,549
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Ten Years, Amortized Cost	1,014,428
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Ten Years, Fair Value	964,833
U.S. government agency securities
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	68,071
Available for Sale, Amortized Cost, Due after five to ten years	163,414
Available for Sale, Amortized Cost, Due after ten years	0
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	64,776
Available for Sale, Fair Value, Due after five to ten years	151,159
Available for Sale, Fair Value, Due after ten years	0
Debt Securities, Available-for-sale, Amortized Cost	231,485	217,393
Debt Securities, Available-for-sale	215,935	215,482
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	32,555
Held to Maturity, Amortized Cost, Due after five to ten years	0
Held to Maturity, Amortized Cost, Due after ten years	0
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	30,981
Held to Maturity, Fair Value, Due after five to ten years	0
Held to Maturity, Fair Value, Due after ten years	0
Debt Securities, Held-to-maturity	32,555	32,987
Held to Maturity, Fair Value, Total	30,981	32,546
Small Business Administration Pooled Securities [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	0
Available for Sale, Amortized Cost, Due after five to ten years	0
Available for Sale, Amortized Cost, Due after ten years	68,455
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	0
Available for Sale, Fair Value, Due after five to ten years	0
Available for Sale, Fair Value, Due after ten years	65,788
Debt Securities, Available-for-sale, Amortized Cost	68,455	47,075
Debt Securities, Available-for-sale	65,788	48,914
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	0
Held to Maturity, Amortized Cost, Due after five to ten years	0
Held to Maturity, Amortized Cost, Due after ten years	20,513
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	0
Held to Maturity, Fair Value, Due after five to ten years	0
Held to Maturity, Fair Value, Due after ten years	20,104
Debt Securities, Held-to-maturity	20,513	21,023
Held to Maturity, Fair Value, Total	20,104	21,756
Debt Securities [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	19,824
Available for Sale, Amortized Cost, Due after one year to five years	791,730
Available for Sale, Amortized Cost, Due after five to ten years	552,353
Available for Sale, Amortized Cost, Due after ten years	283,031
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	19,844
Available for Sale, Fair Value, Due after one year to five years	751,212
Available for Sale, Fair Value, Due after five to ten years	510,804
Available for Sale, Fair Value, Due after ten years	270,871
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	114,651
Held to Maturity, Amortized Cost, Due after five to ten years	436,393
Held to Maturity, Amortized Cost, Due after ten years	731,397
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	110,231
Held to Maturity, Fair Value, Due after five to ten years	406,745
Held to Maturity, Fair Value, Due after ten years	693,962
Held to Maturity, Fair Value, Total	1,210,938
Pooled trust preferred securities issued by banks and insurers
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	0
Available for Sale, Amortized Cost, Due after five to ten years	0
Available for Sale, Amortized Cost, Due after ten years	1,199
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	0
Available for Sale, Fair Value, Due after five to ten years	0
Available for Sale, Fair Value, Due after ten years	999
Debt Securities, Available-for-sale, Amortized Cost	1,199	1,199
Debt Securities, Available-for-sale	999	1,000
Single Issuer Trust Preferred Securities Issued by Banks and Insurers [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	0
Available for Sale, Amortized Cost, Due after five to ten years	0
Available for Sale, Amortized Cost, Due after ten years	489
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	0
Available for Sale, Fair Value, Due after five to ten years	0
Available for Sale, Fair Value, Due after ten years	489
Debt Securities, Available-for-sale, Amortized Cost	489	489
Debt Securities, Available-for-sale	489	491
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	0
Held to Maturity, Amortized Cost, Due after five to ten years	1,500
Held to Maturity, Amortized Cost, Due after ten years	0
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	0
Held to Maturity, Fair Value, Due after five to ten years	1,508
Held to Maturity, Fair Value, Due after ten years	0
Debt Securities, Held-to-maturity	1,500	1,500
Held to Maturity, Fair Value, Total	1,508	1,508
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	192
Available for Sale, Amortized Cost, Due after five to ten years	0
Available for Sale, Amortized Cost, Due after ten years	0
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	200
Available for Sale, Fair Value, Due after five to ten years	0
Available for Sale, Fair Value, Due after ten years	0
Debt Securities, Available-for-sale, Amortized Cost	192	192
Debt Securities, Available-for-sale	200	203
Agency Collateralized Mortgage Obligations [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	0
Available for Sale, Amortized Cost, Due after five to ten years	0
Available for Sale, Amortized Cost, Due after ten years	49,759
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	0
Available for Sale, Fair Value, Due after five to ten years	0
Available for Sale, Fair Value, Due after ten years	49,002
Debt Securities, Available-for-sale, Amortized Cost	49,759	78,966
Debt Securities, Available-for-sale	49,002	79,677
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	0
Held to Maturity, Amortized Cost, Due after five to ten years	34,215
Held to Maturity, Amortized Cost, Due after ten years	542,749
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	0
Held to Maturity, Fair Value, Due after five to ten years	32,252
Held to Maturity, Fair Value, Due after ten years	510,314
Debt Securities, Held-to-maturity	576,964	415,736
Held to Maturity, Fair Value, Total	542,566	408,845
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	19,824
Available for Sale, Amortized Cost, Due after one year to five years	80,449
Available for Sale, Amortized Cost, Due after five to ten years	158,349
Available for Sale, Amortized Cost, Due after ten years	163,129
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	19,844
Available for Sale, Fair Value, Due after one year to five years	78,736
Available for Sale, Fair Value, Due after five to ten years	144,812
Available for Sale, Fair Value, Due after ten years	154,593
Debt Securities, Available-for-sale, Amortized Cost	421,751	364,955
Debt Securities, Available-for-sale	397,985	363,933
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	32,356
Held to Maturity, Amortized Cost, Due after five to ten years	349,842
Held to Maturity, Amortized Cost, Due after ten years	168,135
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	32,265
Held to Maturity, Fair Value, Due after five to ten years	325,374
Held to Maturity, Fair Value, Due after ten years	163,544
Debt Securities, Held-to-maturity	550,333	493,012
Held to Maturity, Fair Value, Total	521,183	497,236
US Treasury Securities [Member]
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available for Sale, Amortized Cost, Due in one year or less	0
Available for Sale, Amortized Cost, Due after one year to five years	643,018
Available for Sale, Amortized Cost, Due after five to ten years	230,590
Available for Sale, Amortized Cost, Due after ten years	0
Available for Sale, Fair Value
Available for Sale, Fair Value, Due in one year or less	0
Available for Sale, Fair Value, Due after one year to five years	607,500
Available for Sale, Fair Value, Due after five to ten years	214,833
Available for Sale, Fair Value, Due after ten years	0
Debt Securities, Available-for-sale, Amortized Cost	873,608	873,467
Debt Securities, Available-for-sale	822,333	861,448
Held to Maturity, Amortized Cost
Held to Maturity, Amortized Cost, Due in one year or less	0
Held to Maturity, Amortized Cost, Due after one year to five years	49,740
Held to Maturity, Amortized Cost, Due after five to ten years	50,836
Held to Maturity, Amortized Cost, Due after ten years	0
Held to Maturity, Fair Value
Held to Maturity, Fair Value, Due in one year or less	0
Held to Maturity, Fair Value, Due after one year to five years	46,985
Held to Maturity, Fair Value, Due after five to ten years	47,611
Held to Maturity, Fair Value, Due after ten years	0
Debt Securities, Held-to-maturity	100,576	102,560
Held to Maturity, Fair Value, Total	$ 94,596	$ 102,242

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Securities (Details Textual) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Interest Receivable	$ 39,400		$ 33,400
Trading	3,956	$ 3,720
Debt Securities, Available-for-sale	1,552,731	1,571,148
Debt Securities, Available-for-sale, Past due	0	0
Investments in obligations of individual states, counties or municipalities which exceed 10% of equity	0	0
Debt Securities, Available-for-sale, Past due	0	0
Debt Securities, Available-for-sale, Nonaccrual	0	0
Debt Securities, Held-to-maturity, Nonaccrual	0	0
Securities (Textual) [Abstract]
Callable Securities in Investment Portfolio	26,200
Pledged Financial Instruments, Not Separately Reported, Securities	778,700	740,600
Investments in obligations of individual states, counties or municipalities which exceed 10% of equity	0	0
Debt Securities, Held-to-maturity	1,282,441	1,066,818
Equity Securities, FV-NI	22,611	23,173
Debt Securities, Held-to-maturity, 90 Days or More Past Due, Still Accruing	0	0
Available-for-sale Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Interest Receivable	3,400	3,000
Held-to-maturity Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Interest Receivable	$ 2,600	$ 2,000

XML

Loans, Allowance for Credit Losses and Credit Quality Financing Receivable, Allowance for Credit Loss (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022		Mar. 31, 2021		Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		$ 144,518	[1]			$ 146,922	$ 113,392
Allowance for Loan and Lease Losses, Write-offs		(706)
Allowance for Loan and Lease Loss, Recovery of Bad Debts		302
Provision for Loan and Lease Losses		(2,000)
Loans and Leases Receivable, Allowance		144,518		$ 107,549	[1]	146,922
(Release of) provision for credit losses		(2,000)		(2,500)
Allowance for Loan and Lease Loss, Recovery of Bad Debts				343
Allowance for Loan and Lease Losses, Write-offs				(3,686)
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		14,169	[1]			14,402	21,086
Allowance for Loan and Lease Losses, Write-offs		0
Allowance for Loan and Lease Loss, Recovery of Bad Debts		13
Provision for Loan and Lease Losses		(246)
Loans and Leases Receivable, Allowance	[1]			20,207
(Release of) provision for credit losses				2,388
Allowance for Loan and Lease Loss, Recovery of Bad Debts				64
Allowance for Loan and Lease Losses, Write-offs				(3,331)
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		84,436	[1]			83,486	45,009
Allowance for Loan and Lease Losses, Write-offs		0
Allowance for Loan and Lease Loss, Recovery of Bad Debts		3
Provision for Loan and Lease Losses		947
Loans and Leases Receivable, Allowance	[1]			44,348
(Release of) provision for credit losses				(718)
Allowance for Loan and Lease Loss, Recovery of Bad Debts				57
Allowance for Loan and Lease Losses, Write-offs				0
Construction Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		11,867	[1]			12,316	5,397
Allowance for Loan and Lease Losses, Write-offs		0
Allowance for Loan and Lease Loss, Recovery of Bad Debts		0
Provision for Loan and Lease Losses		(449)
Loans and Leases Receivable, Allowance	[1]			5,268
(Release of) provision for credit losses				(129)
Allowance for Loan and Lease Loss, Recovery of Bad Debts				0
Allowance for Loan and Lease Losses, Write-offs				0
Small Business [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		3,159	[1]			3,508	5,095
Allowance for Loan and Lease Losses, Write-offs		(48)
Allowance for Loan and Lease Loss, Recovery of Bad Debts		26
Provision for Loan and Lease Losses		(327)
Loans and Leases Receivable, Allowance	[1]			3,621
(Release of) provision for credit losses				(1,419)
Allowance for Loan and Lease Loss, Recovery of Bad Debts				11
Allowance for Loan and Lease Losses, Write-offs				(66)
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		18,388	[1]			14,484	14,275
Allowance for Loan and Lease Losses, Write-offs		0
Allowance for Loan and Lease Loss, Recovery of Bad Debts		0
Provision for Loan and Lease Losses		3,904
Loans and Leases Receivable, Allowance	[1]			12,956
(Release of) provision for credit losses				(1,320)
Allowance for Loan and Lease Loss, Recovery of Bad Debts				1
Allowance for Loan and Lease Losses, Write-offs				0
Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		11,750	[1]			17,986	22,060
Allowance for Loan and Lease Losses, Write-offs		(24)
Allowance for Loan and Lease Loss, Recovery of Bad Debts		26
Provision for Loan and Lease Losses		(6,238)
Loans and Leases Receivable, Allowance	[1]			20,716
(Release of) provision for credit losses				(1,357)
Allowance for Loan and Lease Loss, Recovery of Bad Debts				13
Allowance for Loan and Lease Losses, Write-offs				0
Consumer - Other [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Allowance for Credit Loss		749	[1]			$ 740	$ 470
Allowance for Loan and Lease Losses, Write-offs		(634)
Allowance for Loan and Lease Loss, Recovery of Bad Debts		234
Provision for Loan and Lease Losses		$ 409
Loans and Leases Receivable, Allowance	[1]			433
(Release of) provision for credit losses				55
Allowance for Loan and Lease Loss, Recovery of Bad Debts				197
Allowance for Loan and Lease Losses, Write-offs				$ (289)

[1] Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.4 million and $33.4 million as of March 31, 2022 and March 31, 2021, respectively.

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Loans, Allowance for Credit Losses and Credit Quality Finance Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands		Mar. 31, 2022		Dec. 31, 2021	Mar. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		$ 2,892,632			$ 2,425,930
Financing Receivable, Originated Two Years before Latest Fiscal Year		2,265,477			1,232,875
Financing Receivable, Originated Three Years before Latest Fiscal Year		1,265,677			787,014
Financing Receivable, Originated Four Years before Latest Fiscal Year		1,207,151			801,171
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		3,612,192			1,840,588
Financing Receivable, Revolving		1,669,266			1,353,864
Financing Receivable, after Allowance for Credit Loss		665,591			803,487
Loans and Leases Receivable, Gross		13,580,027	[1]	$ 13,587,286	9,246,691
Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		1,619,466			1,095,178
Financing Receivable, Originated Two Years before Latest Fiscal Year		1,351,525			745,562
Financing Receivable, Originated Three Years before Latest Fiscal Year		914,777			467,476
Financing Receivable, Originated Four Years before Latest Fiscal Year		913,755			553,067
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		2,710,861			1,067,973
Financing Receivable, Revolving		149,599			29,808
Financing Receivable, after Allowance for Credit Loss		237,111			218,553
Loans and Leases Receivable, Gross		7,897,616	[1]	7,992,344	4,177,617	[1]
Commercial Real Estate [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		51,223			29,218
Financing Receivable, Originated Two Years before Latest Fiscal Year		92,984			53,849
Financing Receivable, Originated Three Years before Latest Fiscal Year		43,560			31,274
Financing Receivable, Originated Four Years before Latest Fiscal Year		83,195			18,981
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		210,418			86,160
Financing Receivable, Revolving		13,619			13,612
Financing Receivable, after Allowance for Credit Loss		10,059			390
Loans and Leases Receivable, Gross	[1]	505,058			233,484
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		1,548,212			1,043,424
Financing Receivable, Originated Two Years before Latest Fiscal Year		1,254,460			687,959
Financing Receivable, Originated Three Years before Latest Fiscal Year		867,980			432,728
Financing Receivable, Originated Four Years before Latest Fiscal Year		830,148			524,194
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		2,431,434			966,331
Financing Receivable, Revolving		135,980			16,196
Financing Receivable, after Allowance for Credit Loss		226,907			214,573
Loans and Leases Receivable, Gross	[1]	7,295,643			3,885,405
Commercial Real Estate [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		20,031			22,536
Financing Receivable, Originated Two Years before Latest Fiscal Year		4,081			3,754
Financing Receivable, Originated Three Years before Latest Fiscal Year		3,237			3,474
Financing Receivable, Originated Four Years before Latest Fiscal Year		412			9,892
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		69,009			15,482
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		145			3,590
Loans and Leases Receivable, Gross	[1]	96,915			58,728
Commercial Real Estate [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			0
Commercial Real Estate [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			0
Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		290,515			740,231
Financing Receivable, Originated Two Years before Latest Fiscal Year		160,453			131,206
Financing Receivable, Originated Three Years before Latest Fiscal Year		86,977			92,445
Financing Receivable, Originated Four Years before Latest Fiscal Year		106,159			32,793
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		33,879			30,953
Financing Receivable, Revolving		748,535			617,025
Financing Receivable, after Allowance for Credit Loss		139,674			442,018
Loans and Leases Receivable, Gross		1,566,192	[1]	1,563,279	2,086,671	[1]
Commercial And Industrial [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		746			14,991
Financing Receivable, Originated Two Years before Latest Fiscal Year		1,402			2,636
Financing Receivable, Originated Three Years before Latest Fiscal Year		1,423			2,148
Financing Receivable, Originated Four Years before Latest Fiscal Year		88			4,288
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		1,113			3,205
Financing Receivable, Revolving		4,097			12,252
Financing Receivable, after Allowance for Credit Loss		629			3,424
Loans and Leases Receivable, Gross	[1]	9,498			42,944
Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	[2]	288,516			724,577
Financing Receivable, Originated Two Years before Latest Fiscal Year	[2]	159,051			127,454
Financing Receivable, Originated Three Years before Latest Fiscal Year	[2]	85,497			88,970
Financing Receivable, Originated Four Years before Latest Fiscal Year	[2]	105,651			25,737
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	[2]	30,082			27,123
Financing Receivable, Revolving	[2]	741,200			589,448
Financing Receivable, after Allowance for Credit Loss	[2]	138,642			420,682
Loans and Leases Receivable, Gross	[1],[2]	1,548,639			2,003,991
Commercial And Industrial [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		1,253			663
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			1,116
Financing Receivable, Originated Three Years before Latest Fiscal Year		57			1,327
Financing Receivable, Originated Four Years before Latest Fiscal Year		420			2,768
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		2,684			482
Financing Receivable, Revolving		3,238			6,927
Financing Receivable, after Allowance for Credit Loss		403			17,912
Loans and Leases Receivable, Gross	[1]	8,055			31,195
Commercial And Industrial [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			143
Financing Receivable, Revolving		0			8,398
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			8,541
Commercial And Industrial [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			0
Construction Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		415,492			257,498
Financing Receivable, Originated Two Years before Latest Fiscal Year		443,134			151,767
Financing Receivable, Originated Three Years before Latest Fiscal Year		100,066			28,709
Financing Receivable, Originated Four Years before Latest Fiscal Year		30,145			23,313
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		47,887			6,628
Financing Receivable, Revolving		34,416			20,124
Financing Receivable, after Allowance for Credit Loss		82,805			28,323
Loans and Leases Receivable, Gross		1,153,945	[1]	1,165,457	516,362	[1]
Construction Loans [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			17,544
Financing Receivable, Originated Two Years before Latest Fiscal Year		3,005			9,691
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		12,935			0
Financing Receivable, Revolving		0			190
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	15,940			27,425
Construction Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		400,932			239,954
Financing Receivable, Originated Two Years before Latest Fiscal Year		440,129			142,076
Financing Receivable, Originated Three Years before Latest Fiscal Year		100,066			28,189
Financing Receivable, Originated Four Years before Latest Fiscal Year		30,145			23,313
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		34,952			6,628
Financing Receivable, Revolving		34,416			19,934
Financing Receivable, after Allowance for Credit Loss		82,805			28,323
Loans and Leases Receivable, Gross	[1]	1,123,445			488,417
Construction Loans [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		14,560			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			520
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	14,560			520
Construction Loans [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			0
Construction Loans [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			0
Small Business [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		52,220			42,095
Financing Receivable, Originated Two Years before Latest Fiscal Year		37,009			26,257
Financing Receivable, Originated Three Years before Latest Fiscal Year		19,936			18,013
Financing Receivable, Originated Four Years before Latest Fiscal Year		12,339			12,651
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		25,009			29,812
Financing Receivable, Revolving		38,933			35,076
Financing Receivable, after Allowance for Credit Loss		14,959			10,307
Loans and Leases Receivable, Gross		200,405	[1]	193,189	174,211	[1]
Small Business [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		183
Financing Receivable, Originated Two Years before Latest Fiscal Year		435			389
Financing Receivable, Originated Three Years before Latest Fiscal Year		376			204
Financing Receivable, Originated Four Years before Latest Fiscal Year		196			10
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		277			202
Financing Receivable, Revolving		761			634
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	2,228			1,439
Small Business [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		52,037			41,418
Financing Receivable, Originated Two Years before Latest Fiscal Year		35,973			25,817
Financing Receivable, Originated Three Years before Latest Fiscal Year		19,540			17,750
Financing Receivable, Originated Four Years before Latest Fiscal Year		12,136			12,624
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		24,449			29,309
Financing Receivable, Revolving		37,719			33,658
Financing Receivable, after Allowance for Credit Loss		14,959			10,307
Loans and Leases Receivable, Gross	[1]	196,813			170,883
Small Business [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			677
Financing Receivable, Originated Two Years before Latest Fiscal Year		601			51
Financing Receivable, Originated Three Years before Latest Fiscal Year		20			59
Financing Receivable, Originated Four Years before Latest Fiscal Year		7			17
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		283			301
Financing Receivable, Revolving		453			758
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	1,364			1,863
Small Business [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			26
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			26
Small Business [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0			0
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	0			0
Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		446,985			212,891
Financing Receivable, Originated Two Years before Latest Fiscal Year		209,685			126,359
Financing Receivable, Originated Three Years before Latest Fiscal Year		106,746			133,577
Financing Receivable, Originated Four Years before Latest Fiscal Year		112,600			130,580
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		652,505			557,725
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		177,524			80,657
Loans and Leases Receivable, Gross		1,706,045	[1]	$ 1,604,686	1,241,789	[1]
Residential Real Estate [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		392
Financing Receivable, Originated Three Years before Latest Fiscal Year					427
Financing Receivable, Originated Four Years before Latest Fiscal Year		999			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		1,950			2,877
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	3,341			3,304
Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		446,985			212,891
Financing Receivable, Originated Two Years before Latest Fiscal Year		209,293			126,359
Financing Receivable, Originated Three Years before Latest Fiscal Year		106,746			133,150
Financing Receivable, Originated Four Years before Latest Fiscal Year		111,601			130,580
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		650,555			554,848
Financing Receivable, Revolving		0			0
Financing Receivable, after Allowance for Credit Loss		177,524			80,657
Loans and Leases Receivable, Gross	[1]	1,702,704			1,238,485
Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		64,981			77,497
Financing Receivable, Originated Two Years before Latest Fiscal Year		61,198			51,398
Financing Receivable, Originated Three Years before Latest Fiscal Year		35,197			46,648
Financing Receivable, Originated Four Years before Latest Fiscal Year		31,458			48,132
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		137,379			140,586
Financing Receivable, Revolving		680,707			638,889
Financing Receivable, after Allowance for Credit Loss		13,376			23,583
Loans and Leases Receivable, Gross	[1]	1,025,815			1,028,495
Home Equity Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		0			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		122
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		64			210
Financing Receivable, Revolving		1,840			2,008
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	2,026			2,218
Home Equity Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		64,981			77,497
Financing Receivable, Originated Two Years before Latest Fiscal Year		61,198			51,398
Financing Receivable, Originated Three Years before Latest Fiscal Year		35,075			46,648
Financing Receivable, Originated Four Years before Latest Fiscal Year		31,458			48,132
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		137,315			140,376
Financing Receivable, Revolving		678,867			636,881
Financing Receivable, after Allowance for Credit Loss		13,376			23,583
Loans and Leases Receivable, Gross	[1]	1,023,789			1,026,277
Consumer Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		2,973			540
Financing Receivable, Originated Two Years before Latest Fiscal Year		2,473			326
Financing Receivable, Originated Three Years before Latest Fiscal Year		1,978			146
Financing Receivable, Originated Four Years before Latest Fiscal Year		695			635
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		4,672			6,911
Financing Receivable, Revolving		17,076			12,942
Financing Receivable, after Allowance for Credit Loss		142			46
Loans and Leases Receivable, Gross	[1]	30,009			21,546
Consumer Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		9			0
Financing Receivable, Originated Two Years before Latest Fiscal Year		4			0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0			0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0			15
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		3			111
Financing Receivable, Revolving		2			3
Financing Receivable, after Allowance for Credit Loss		0			0
Loans and Leases Receivable, Gross	[1]	18			129
Consumer Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		2,964			540
Financing Receivable, Originated Two Years before Latest Fiscal Year		2,469			326
Financing Receivable, Originated Three Years before Latest Fiscal Year		1,978			146
Financing Receivable, Originated Four Years before Latest Fiscal Year		695			620
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		4,669			6,800
Financing Receivable, Revolving		17,074			12,939
Financing Receivable, after Allowance for Credit Loss		142			46
Loans and Leases Receivable, Gross	[1]	29,991			21,417
Revolving converted to term [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		2,041			1,762
Revolving converted to term [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		522			0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		522
Revolving converted to term [Member] | Commercial Real Estate [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Commercial Real Estate [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Commercial And Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving	[2]	0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Commercial And Industrial [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Construction Loans [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Construction Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0
Revolving converted to term [Member] | Construction Loans [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Construction Loans [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Construction Loans [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Small Business [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Small Business [Member] | Potential Weakness [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Small Business [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Small Business [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Small Business [Member] | Partial Loss Probable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Small Business [Member] | Definite Loss [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Residential Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Residential Real Estate [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Residential Real Estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Home Equity Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		1,519			1,762
Revolving converted to term [Member] | Home Equity Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0
Revolving converted to term [Member] | Home Equity Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		1,519			1,762
Revolving converted to term [Member] | Consumer Loan [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Consumer Loan [Member] | Default [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		0			0
Revolving converted to term [Member] | Consumer Loan [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Revolving		$ 0			$ 0

[1] Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

[2] Loans originated as part of the Paycheck Protection Program ("PPP") established by the CARES Act are included within commercial and industrial under the 2021 and 2020 vintage year and "pass" category as these loans are 100% guaranteed by the U.S. Government. Outstanding PPP loans totaled $99.6 million and $846.3 million as of March 31, 2022 and 2021, respectively.

XML

Loans, Allowance for Credit Losses and Credit Quality FICO and LTV (Details) - score		Mar. 31, 2022	Dec. 31, 2021
Residential Portfolio Segment [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable With Quality Of Loan Based On Weighted Average Fico Rating	[1]	752	749
Financing Receivable With Credit Quality Of Loan Based Upon the Weighted Average Loan-To-Value Ratio	[2]	54.50%	54.40%
Home Equity Line of Credit [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable With Quality Of Loan Based On Weighted Average Fico Rating	[1]	773	772
Financing Receivable With Credit Quality Of Loan Based Upon the Weighted Average Loan-To-Value Ratio	[2],[3]	42.30%	42.40%

[1] The average FICO scores at March 31, 2022 are based upon rescores from March 2022, as available for previously originated loans, or origination score data for loans booked in March 2022.  The average FICO scores at December 31, 2021 were based upon rescores available from December 2021, as available for previously originated loans, or origination score data for loans booked in December 2021.

[2] The combined LTV ratios for March 31, 2022 are based upon updated automated valuations as of February 2022, when available, and/or the most current valuation data available.  The combined LTV ratios for December 31, 2021 were based upon updated automated valuations as of November 2021, when available, and/or the most current valuation data available as of such date.  The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained.  If no new information is available, the valuation will default to the previously obtained data or most recent appraisal.

[3] For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.

XML

Loans, Allowance for Credit Losses and Credit Quality Finance Receivable, Nonaccrual (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance	[1]	$ 31,368	$ 27,199
Financing Receivable, Nonaccrual, No Allowance	[1]	25,250	621
Tdrs Recorded Investment On Nonaccrual Status		1,972	1,993
Financing Receivable Recorded Investment Trouble Debt Restructuring		15,260	16,628
Additional Commitments To Lend To Borrower For Trouble Debt Restructuring		174	190
Financing Receivable, Nonaccrual	[1]	56,618	27,820
Tdrs Recorded Investment On Accrual Status		13,288	14,635
Commercial And Industrial [Member]
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance		3,498	3,420
Financing Receivable, Nonaccrual, No Allowance		19	19
Financing Receivable, Nonaccrual		3,517	3,439
Commercial Real Estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance		15,835	10,870
Financing Receivable, Nonaccrual, No Allowance		24,635	0
Financing Receivable, Nonaccrual		40,470	10,870
Small Business [Member]
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance		20	44
Financing Receivable, Nonaccrual, No Allowance		0
Financing Receivable, Nonaccrual		20	44
Residential Real Estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance		7,861	8,580
Financing Receivable, Nonaccrual, No Allowance		596	602
Financing Receivable, Nonaccrual		8,457	9,182
Home Equity Line of Credit [Member]
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance		3,761	3,781
Financing Receivable, Nonaccrual, No Allowance		0	0
Financing Receivable, Nonaccrual		3,761	3,781
Consumer - Other [Member]
Financing Receivable, Nonaccrual [Line Items]
Finance Receivable, Nonaccrual, with allowance		393	504
Financing Receivable, Nonaccrual, No Allowance		0	0
Financing Receivable, Nonaccrual		$ 393	$ 504

[1] Included in these amounts were $2.0 million of nonaccruing TDRs at both March 31, 2022 and December 31, 2021, respectively.

XML

Loans, Allowance for Credit Losses and Credit Quality Foreclosed Residential Real Estate Property (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Foreclosed residential real estate property held by the creditor	$ 0	$ 0
Mortgage Loans in Process of Foreclosure, Amount	$ 2,287	$ 1,426

XML

Loans, Allowance for Credit Losses and Credit Quality Financing Receivable Past Due (Details) $ in Thousands		Mar. 31, 2022 USD ($) loan		Dec. 31, 2021 USD ($) loan	Mar. 31, 2021 USD ($)
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		428		518
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 13,580,027	[1]	$ 13,587,286	$ 9,246,691
Number Of Financing Receivables Total Past Due | loan		574		701
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		38		60
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		108		123
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 13,748		$ 37,927
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		13,086		1,677
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		12,402		7,092
Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		13,540,791		13,540,590
Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 39,236		$ 46,696
Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		4		7
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 1,566,192	[1]	$ 1,563,279	2,086,671	[1]
Number Of Financing Receivables Total Past Due | loan		8		11
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		4		2
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		0		2
Financing Receivable, before Allowance for Credit Loss		$ 1,566,192		$ 1,563,279
Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		276		143
Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		3,399		252
Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		0		24
Commercial And Industrial [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		1,562,517		1,562,860
Commercial And Industrial [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 3,675		$ 419
Commercial Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		10		15
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 7,897,616	[1]	$ 7,992,344	4,177,617	[1]
Number Of Financing Receivables Total Past Due | loan		15		19
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		3		0
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		2		4
Financing Receivable, before Allowance for Credit Loss		$ 7,897,616		$ 7,992,344
Commercial Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		6,530		32,845
Commercial Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		7,897		0
Commercial Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		7,009		1,339
Commercial Real Estate [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		7,876,180		7,958,160
Commercial Real Estate [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 21,436		$ 34,184
Construction Loans [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		3		0
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 1,153,945	[1]	$ 1,165,457	516,362	[1]
Number Of Financing Receivables Total Past Due | loan		3		0
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		0		0
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		0		0
Financing Receivable, before Allowance for Credit Loss		$ 1,153,945		$ 1,165,457
Construction Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		2,592		0
Construction Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		0		0
Construction Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		0		0
Construction Loans [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		1,151,353		1,165,457
Construction Loans [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 2,592		$ 0
Small Business [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		7		11
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 200,405	[1]	$ 193,189	174,211	[1]
Number Of Financing Receivables Total Past Due | loan		11		21
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		2		6
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		2		4
Financing Receivable, before Allowance for Credit Loss		$ 200,405		$ 193,189
Small Business [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		85		136
Small Business [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		6		53
Small Business [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		8		24
Small Business [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		200,306		192,976
Small Business [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 99		$ 213
Residential Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		9		12
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 1,706,045	[1]	$ 1,604,686	$ 1,241,789	[1]
Number Of Financing Receivables Total Past Due | loan		88		93
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		6		5
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		73		76
Financing Receivable, before Allowance for Credit Loss		$ 1,706,045		$ 1,604,686
Residential Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		2,890		2,709
Residential Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		1,546		714
Residential Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		3,341		3,922
Residential Real Estate [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		1,698,268		1,597,341
Residential Real Estate [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 7,777		$ 7,345
Home Equity Line of Credit [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan		11		15
Financing Receivable, 90 Days or More Past Due, Still Accruing		$ 0		$ 0
Loans and Leases Receivable, Gross		$ 1,025,815		$ 1,039,611
Number Of Financing Receivables Total Past Due | loan		39		42
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan		5		6
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan		23		21
Home Equity Line of Credit [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 834		$ 1,375
Home Equity Line of Credit [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		81		381
Home Equity Line of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		2,026		1,671
Home Equity Line of Credit [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		1,022,874		1,036,184
Home Equity Line of Credit [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 2,941		$ 3,427
Consumer - Other [Member]
Financing Receivable, Past Due [Line Items]
Number Of Financing Receivables Thirty To Fifty Nine Days Past Due | loan	[2]	384		458
Financing Receivable, 90 Days or More Past Due, Still Accruing	[2]	$ 0		$ 0
Loans and Leases Receivable, Gross	[2]	$ 30,009		$ 28,720
Number Of Financing Receivables Total Past Due | loan	[2]	410		515
Number of Financing Receivables Sixty to Eighty Nine Days Past Due | loan	[2]	18		41
Number Of Financing Receivables Equal To Greater Than Ninety Days | loan	[2]	8		16
Financing Receivable, before Allowance for Credit Loss		$ 30,009		$ 28,720
Consumer - Other [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	[2]	541		719
Consumer - Other [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	[2]	157		277
Consumer - Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	[2]	18		112
Consumer - Other [Member] | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	[2]	29,293		27,612
Consumer - Other [Member] | Financial Asset, Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	[2]	$ 716		$ 1,108

[1] Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan.

[2] Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.

XML

Loans, Allowance for Credit Losses and Credit Quality Troubled Debt Restructurings (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2022 USD ($) contract	Mar. 31, 2021 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	7
Financing Receivable, Troubled Debt Restructuring, Premodification	[1]		$ 18,212
Financing Receivable, Troubled Debt Restructuring, Postmodification	[1]		$ 18,212
Commercial And Industrial [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	1
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 0	$ 14,148
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0	$ 14,148
Commercial Real Estate [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	5
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 0	$ 3,964
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0	$ 3,964
Small Business [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	1
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 0	$ 100
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0	$ 100
Residential Real Estate [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0
Home Equity Line of Credit [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0
Consumer Portfolio Segment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0

[1] The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.

XML

Loans, Allowance for Credit Losses and Credit Quality Schedule of Debtor Troubled Debt Restructurings, Subsequent Period (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2022 USD ($) contract	Mar. 31, 2021 USD ($) contract
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	7
Financing Receivable, Troubled Debt Restructuring, Premodification	[1]		$ 18,212
Financing Receivable, Troubled Debt Restructuring, Postmodification	[1]		$ 18,212
Commercial And Industrial [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	1
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 0	$ 14,148
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0	$ 14,148
Commercial Real Estate [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	5
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 0	$ 3,964
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0	$ 3,964
Small Business [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0	1
Financing Receivable, Troubled Debt Restructuring, Premodification		$ 0	$ 100
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0	$ 100
Residential Real Estate [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0
Home Equity Line of Credit [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0
Consumer - Other [Member]
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Financing Receivable, Modifications, Number of Contracts | contract		0

[1] The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.

XML

Loans, Allowance for Credit Losses and Credit Quality TDR on Financing Receivables Post Modification (Details) - USD ($)		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	[1]		$ 18,212,000
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification			18,212,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default		$ 0	0
Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification			4,064,000
Combination rate and maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification			$ 14,148,000

[1] The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.

XML

Loans, Allowance for Credit Losses and Credit Quality Textual (Details) - USD ($)		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021		Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Days To Be Termed As Non Accrual Loans		90 days
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) by percentage		(1.60%)
(Release of) provision for credit losses		$ (2,000,000)	$ (2,500,000)
Interest Receivable		39,400,000	33,400,000
Off-Balance Sheet, Credit Loss, Liability		1,500,000			$ 1,500,000
Loans with active Deferrals		304,500,000			383,100,000
Allowance for Loan and Lease Losses, Write-offs		(706,000)
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification			18,212,000
us-gaap_FinancingReceivableTroubledDebtRestructuringIncreaseDecreaseFromModification		14,300,000
Financing Receivable, after Allowance for Credit Loss		665,591,000	803,487,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default		0	0
Loans with active Deferrals		304,500,000			383,100,000
Interest Receivable		39,400,000	33,400,000
Loans and Leases Receivable, Allowance		(144,518,000)	(107,549,000)	[1]	(146,922,000)
Off-Balance Sheet, Credit Loss, Liability		1,500,000			1,500,000
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)		2,400,000
Financing Receivable, Troubled Debt Restructuring, Subsequent Default		0	0
US Government Insured Loan Program [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss			846,300,000
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
(Release of) provision for credit losses			2,388,000
Financing Receivable, before Allowance for Credit Loss		1,566,192,000			$ 1,563,279,000
Allowance for Loan and Lease Losses, Write-offs		0
Financing Receivable, after Allowance for Credit Loss		139,674,000	442,018,000
Loans and Leases Receivable, Allowance	[1]		(20,207,000)
Commercial And Industrial [Member] | Definite Weakness Loss Unlikely [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, after Allowance for Credit Loss		403,000	$ 17,912,000
Loans Insured or Guaranteed by US Government Authorities
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, before Allowance for Credit Loss		$ 99,600,000

[1] Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.4 million and $33.4 million as of March 31, 2022 and March 31, 2021, respectively.

XML

Stock Based Compensation (Awards of Restricted Stock) (Details) - Ratably Over Period [Member] - 2/17/2022 - Employee Stock [Member] - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Granted | shares	52,100
Grant Date Fair Value Per Share | $ / shares	$ 84.70
Vesting Period	Ratably over 5 years from grant date

XML

Stock Based Compensation Performance-based Restricted Stock Textual (Details) - Employee Stock Plan [Member] - Performance Shares [Member]	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted	20,700
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 84.70
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	7,450

XML

Derivatives and Hedging Activities (Derivative Positions for Interest Rate Swaps which Qualify as Hedges) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2022	Jun. 30, 2021	Dec. 31, 2021
Interest rate swaps on borrowings [Member]
Details of derivative positions for interest rate swaps which qualify as hedges for accounting purposes
Fair Value	$ (124)		$ (294)
Derivative, Notional Amount	$ 25,000		$ 25,000
Derivative, Average Remaining Maturity	4 months 17 days	7 months 13 days
Derivative, Average Variable Interest Rate	0.47%		0.16%
Derivative, Average Fixed Interest Rate	1.88%		1.88%
Interest rate swaps on loans [Member]
Details of derivative positions for interest rate swaps which qualify as hedges for accounting purposes
Fair Value	$ (4,785)		$ 11,830
Derivative, Notional Amount	$ 550,000		$ 550,000
Derivative, Average Remaining Maturity	2 years 3 months 29 days	2 years 6 months 29 days
Derivative, Average Variable Interest Rate	0.32%		0.11%
Derivative, Average Fixed Interest Rate	2.16%		2.16%
Interest rate collars on loans [Member]
Details of derivative positions for interest rate swaps which qualify as hedges for accounting purposes
Fair Value	$ 703		$ 9,383
Derivative, Notional Amount	$ 350,000		$ 400,000
Derivative, Average Remaining Maturity	1 year 7 months 24 days	1 year 7 months 28 days
Derivative, Average Variable Interest Rate	0.33%		0.11%
Derivative, Average Cap Interest Rate	2.72%		2.73%
Derivative, Average Floor Interest Rate	2.26%		2.20%
Interest Rate Swap [Member]
Details of derivative positions for interest rate swaps which qualify as hedges for accounting purposes
Fair Value	$ (4,206)		$ 20,919
Derivative, Notional Amount	$ 925,000		$ 975,000

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Derivatives and Hedging Activities (Customer Related Derivative Positions - Not Designated as Hedges) (Details) - Not Designated as Hedging Instrument $ in Thousands		Mar. 31, 2022 USD ($) position	Dec. 31, 2021 USD ($) position
Receive fixed, pay variable | Loan level swaps
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	295	296
Less than 1 year		$ 63,981	$ 37,589
Less than 2 years		108,216	139,844
Less than 3 years		177,574	123,507
Less than 4 years		244,445	260,953
Thereafter		1,023,964	1,060,276
Derivative, Notional Amount		1,618,180	1,622,169
Fair Value		$ (26,666)	$ 55,984
Pay fixed, receive variable | Loan level swaps
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	295	296
Less than 1 year		$ 63,981	$ 37,589
Less than 2 years		108,216	139,844
Less than 3 years		177,574	123,507
Less than 4 years		244,445	260,953
Thereafter		1,023,964	1,060,276
Derivative, Notional Amount		1,618,180	1,622,169
Fair Value		$ 26,666	$ (55,982)
Buys foreign currency, sells U.S. currency | Foreign exchange contracts
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	44	52
Less than 1 year		$ 126,627	$ 149,588
Less than 2 years		2,535	8,784
Less than 3 years		0	0
Less than 4 years		0	0
Thereafter		0	0
Derivative, Notional Amount		129,162	158,372
Fair Value		$ (5,667)	$ 5,734
Buys U.S. currency, sells foreign currency | Foreign exchange contracts
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position	[1]	44	52
Less than 1 year		$ 126,627	$ 149,588
Less than 2 years		2,535	8,784
Less than 3 years		0	0
Less than 4 years		0	0
Thereafter		0	0
Derivative, Notional Amount		129,162	158,372
Fair Value		$ 5,739	$ (5,734)
Risk Participated Out | Risk Participation Agreement
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position		11	11
Less than 1 year		$ 0	$ 0
Less than 2 years		2,625	2,635
Less than 3 years		24,538	7,138
Less than 4 years		0	24,539
Thereafter		68,601	68,408
Derivative, Notional Amount		95,764	102,720
Fair Value		$ 215	$ 279
Risk Participated In | Risk Participation Agreement
Summary of customer related derivative positions, not designated as hedging
Number of Positions | position		8	7
Less than 1 year		$ 29,797	$ 29,972
Less than 2 years		28,021	28,235
Less than 3 years		0	0
Less than 4 years		0	0
Thereafter		21,463	8,339
Derivative, Notional Amount		79,281	66,546
Fair Value		$ (54)	$ (55)

[1] The Company may enter into one dealer swap agreement which offsets multiple commercial borrower swap agreements.

XML

Derivatives and Hedging Activities (FV of Derivative Financial Instruments and Classification on Balance Sheet) (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Asset	[1]	$ 34,351	$ 92,185
Derivative Liability	[2]	59,406	69,246
Derivative Asset, Fair Value, Amount Offset Against Collateral	[1]	24,289	69,807
Derivative, Collateral, Obligation to Return Securities	[3]	10,062	22,378
Derivative, Collateral, Right to Reclaim Securities	[3]	10,062	22,378
Derivative, Collateral, Obligation to Return Cash		0	0
Derivative, Collateral, Right to Reclaim Cash		4,587	33,838
Derivative Liability, Fair Value, Amount Offset Against Collateral	[2]	44,757	13,030
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	[1]	56,973	75,961
Derivative Asset, Fair Value, Gross Asset	[1]	62,244	97,912
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	[2]	56,407	74,983
Liability Derivatives	[2]	65,884	76,015
Interest Rate Swap [Member] | Derivatives designated as hedges [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Assets, at Fair Value	[1],[4]	5,271	21,951
Interest Rate Swap [Member] | Derivatives designated as hedges [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, at Fair Value	[2],[5]	9,477	1,032
Loan level swaps | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1],[4]	50,418	68,726
Loan level swaps | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	[2],[5]	50,418	68,724
Foreign Exchange Contract [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	6,007	6,147
Foreign Exchange Contract [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	[2]	5,935	6,147
Risk Participation Agreement | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Credit Risk Derivative Assets, at Fair Value	[1]	215	279
Risk Participation Agreement | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Credit Risk Derivative Liabilities, at Fair Value	[2]	54	55
Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Instrument Not Designated as a Hedge, Interest Rate Lock Commitments, Asset at Fair Value	[1]	58	753
Derivative Instrument Not Designated as a Hedge, Forward Sales Agreements, Asset at Fair Value	[1]	27	56
Derivative Instrument Not Designated as a Hedge, Forward Sale Hedge Commitment, Asset at Fair Value	[1]	248	0
Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Instrument Not Designated as a Hedge, Interest Rate Lock Commitments, Liabilities at Fair Value	[2]	0	0
Derivative Instrument Not Designated as a Hedge, Forward Sales Agreements, Liabilities at Fair Value	[2]	0	0
Derivative Instrument Not Designated as a Hedge, Forward Sale Hedge Commitment, Liability at Fair Value	[2]	0	57
CME [Member]
Derivatives, Fair Value [Line Items]
Derivative, Collateral, Obligation to Return Cash	[6]	27,893	5,727
Derivative, Collateral, Right to Reclaim Cash	[6]	$ 6,478	$ 6,769

[1] All asset derivatives are reflected in other assets on the balance sheet.

[2] All liability derivatives are reflected in other liabilities on the balance sheet.

[3] Reflects offsetting derivative positions with the same counterparty that are not netted on the balance sheet.

[4] Approximately $878,000 and $226,000 of accrued interest receivable is included in the fair value of the interest rate and loan level asset derivatives, respectively, as of March 31, 2022, in comparison to accrued interest receivable of approximately $1.2 million and $1.5 million, respectively, as of December 31, 2021.

[5] As of March 31, 2022, approximately $216,000 of accrued interest receivable is included in the fair value of interest rate derivative liabilities and approximately $225,000 of accrued interest payable is included in the fair value of loan level liability derivatives. Accrued interest payable of approximately $5,000 and $1.5 million is included in the fair value of the interest rate and loan level derivative liabilities, respectively, as of December 31, 2021.

[6] Netting adjustments represent the amounts recorded to convert derivative assets and liabilities cleared through CME from a gross basis to a net basis, inclusive of the variation margin payments, in accordance with applicable accounting guidance. As displayed in the table above, derivatives that cleared through the CME were either in a net asset position or a net liability position as of March 31, 2022.

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Derivatives and Hedging Activities (Derivative Financial Instruments included in OCI and Current Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	$ (17,950)	$ (6,583)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Loss on Termination of Derivatives, before Tax	0	0
Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain reclassified from OCI into interest income or interest expense (effective portion)	4,505	4,380
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Other income	(413)	(2,601)
Interest Expense [Member] | Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Other expense | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Other income	89	6
Changes in fair value of mortgage derivatives | Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	0	0
Changes in fair value of mortgage derivatives | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Other income	(83)	(283)
Total | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Mortgage banking income	(419)	(2,324)
Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	$ (17,950)	$ (6,583)

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Derivatives and Hedging Activities (Textual) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Derivative [Line Items]
Derivative, Net Liability Position, Aggregate Fair Value	$ 1,100,000		$ 34,800,000
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge	7 years
Gain (Loss) on Sales of Loans, Net	$ 599,000	$ 8,100,000
Exposure to Institutional Counterparties	43,800,000		28,300,000
Customer related positions	11,800,000		62,400,000
Fair Value Hedges, Net	0		$ 0
Change in Fair Value on Loans Held for Sale	(548,000)	(1,764,000)
Interest Receivable	39,400,000	$ 33,400,000
Interest Income [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	4,100,000
Interest Expense [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (80,000)
Interest rate collars on loans [Member]
Derivative [Line Items]
Derivative, Average Cap Interest Rate	2.72%		2.73%
Derivative, Average Floor Interest Rate	2.26%		2.20%
Derivative, Notional Amount	$ 350,000,000		$ 400,000,000
Loan level swaps
Derivative [Line Items]
Interest Receivable	226,000		1,500,000
Interest Payable, Current	(225,000)		(1,500,000)
Interest rate swaps on borrowings [Member]
Derivative [Line Items]
Derivative, Notional Amount	25,000,000		25,000,000
Interest rate swaps on loans [Member]
Derivative [Line Items]
Interest Receivable	216,000
Derivative, Notional Amount	550,000,000		550,000,000
Interest Rate Swap [Member]
Derivative [Line Items]
Interest Receivable	878,000		1,200,000
Interest Payable, Current			(5,000)
Derivative, Notional Amount	$ 925,000,000		$ 975,000,000

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Fair Value Measurements (Details 1) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
ASSETS
Trading		$ 3,956	$ 3,720
Equity Securities, FV-NI		22,611	23,173
Debt Securities, Available-for-sale		1,552,731	1,571,148
U.S. government agency securities
ASSETS
Debt Securities, Available-for-sale		215,935	215,482
Agency mortgage-backed securities
ASSETS
Debt Securities, Available-for-sale		397,985	363,933
Pooled trust preferred securities issued by banks and insurers
ASSETS
Debt Securities, Available-for-sale		999	1,000
Small Business Administration Pooled Securities [Member]
ASSETS
Debt Securities, Available-for-sale		65,788	48,914
US Treasury Securities [Member]
ASSETS
Debt Securities, Available-for-sale		822,333	861,448
Recurring fair value measurements
ASSETS
Trading		3,956	3,720
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS		1,581,802	1,644,617
Recurring fair value measurements | Equity Securities [Member]
ASSETS
Equity Securities, FV-NI		22,611	23,173
Recurring fair value measurements | U.S. government agency securities
ASSETS
Debt Securities, Available-for-sale		215,935	215,482
Recurring fair value measurements | Agency mortgage-backed securities
ASSETS
Debt Securities, Available-for-sale		397,985	363,933
Recurring fair value measurements | Agency collateralized mortgage obligations
ASSETS
Debt Securities, Available-for-sale		49,002	79,677
Recurring fair value measurements | Municipal Bonds [Member]
ASSETS
Debt Securities, Available-for-sale		200	203
Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers
ASSETS
Debt Securities, Available-for-sale		489	491
Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers
ASSETS
Debt Securities, Available-for-sale		999	1,000
Recurring fair value measurements | Small Business Administration Pooled Securities [Member]
ASSETS
Debt Securities, Available-for-sale		65,788	48,914
Recurring fair value measurements | Loans held for sale
ASSETS
Loans Held-for-sale, Fair Value Disclosure		6,144	24,679
Recurring fair value measurements | Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset		62,244	97,912
Recurring fair value measurements | Derivative instruments
LIABILITIES
Financial and Nonfinancial Liabilities, Fair Value Disclosure		65,884	76,015
Recurring fair value measurements | US Treasury Securities [Member]
ASSETS
Debt Securities, Available-for-sale		822,333	861,448
Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS		25,231	1,174
Nonrecurring fair value measurements | Collateral Dependent Loans [Member]
ASSETS
Assets, Fair Value Disclosure	[1]	25,231	1,174
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements
ASSETS
Trading		3,956	3,720
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS		26,567	26,893
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Equity Securities [Member]
ASSETS
Equity Securities, FV-NI		22,611	23,173
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Municipal Bonds [Member]
ASSETS
Debt Securities, Available-for-sale			0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member]
ASSETS
Debt Securities, Available-for-sale		0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS		0	0
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS		1,555,235	1,617,724
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Equity Securities [Member]
ASSETS
Equity Securities, FV-NI		0	0
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | U.S. government agency securities
ASSETS
Debt Securities, Available-for-sale		215,935	215,482
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency mortgage-backed securities
ASSETS
Debt Securities, Available-for-sale		397,985	363,933
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency collateralized mortgage obligations
ASSETS
Debt Securities, Available-for-sale		49,002	79,677
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Municipal Bonds [Member]
ASSETS
Debt Securities, Available-for-sale		200	203
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers
ASSETS
Debt Securities, Available-for-sale		489	491
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers
ASSETS
Debt Securities, Available-for-sale		999	1,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member]
ASSETS
Debt Securities, Available-for-sale		65,788	48,914
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Loans held for sale
ASSETS
Loans Held-for-sale, Fair Value Disclosure		6,144	24,679
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset		62,244	97,912
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative instruments
LIABILITIES
Financial and Nonfinancial Liabilities, Fair Value Disclosure		65,884	76,015
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | US Treasury Securities [Member]
ASSETS
Debt Securities, Available-for-sale		822,333	861,448
Significant Other Observable Inputs (Level 2) | Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS		0	0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS		0	0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Equity Securities [Member]
ASSETS
Equity Securities, FV-NI		0	0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Municipal Bonds [Member]
ASSETS
Debt Securities, Available-for-sale			0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member]
ASSETS
Debt Securities, Available-for-sale		0	0
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS		25,231	1,174
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Collateral Dependent Loans [Member]
ASSETS
Assets, Fair Value Disclosure	[1]	$ 25,231	$ 1,174

[1] The carrying value of individually assessed collateral dependent loans is based on the lower of amortized cost or fair value of the underlying collateral less costs to sell. The fair value of the underlying collateral is generally determined through independent appraisals, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

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Fair Value Measurements (Details 2) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
ASSETS
Debt Securities, Held-to-maturity		$ 1,282,441	$ 1,066,818
Held to Maturity, Fair Value, Total		1,210,938	1,064,133
Loans, net of allowance for credit losses (b)		13,435,509	13,440,364
Federal Home Loan Bank Stock		11,407	11,407
Bank Owned Life Insurance		291,192	289,304
LIABILITIES
Federal Home Loan Bank borrowings (f)		25,660	25,667
Long-term Debt	[1]		14,063
Long-term Debt, Fair Value	[1]		13,989
Subordinated Debt		49,814	49,791
Deposits [Member]
LIABILITIES
Time certificates of deposits (f)	[2]	15,364,782	15,385,894
Accrued Liabilities, Fair Value Disclosure	[2]	15,364,782	15,385,894
Time certificates of deposits (f)
LIABILITIES
Time certificates of deposits (f)	[1]	1,398,610	1,531,150
Accrued Liabilities, Fair Value Disclosure	[1]	1,384,450	1,529,857
Federal Home Loan Bank borrowings (f)
LIABILITIES
Federal Home Loan Bank borrowings (f)	[1]	25,660	25,667
Federal Home Loan Bank Borrowings, Fair Value Disclosure	[1]	25,626	25,663
Junior subordinated debentures (g)
LIABILITIES
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	[3]	62,854	62,853
Accrued Liabilities, Fair Value Disclosure	[3]	63,654	67,019
Subordinated debentures (f)
LIABILITIES
Subordinated Debt	[1]	49,814	49,791
Accrued Liabilities, Fair Value Disclosure	[1]	43,754	45,532
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term Debt [Member]
LIABILITIES
Long-term Debt, Fair Value	[1]		0
Significant Other Observable Inputs (Level 2) | Deposits [Member]
LIABILITIES
Accrued Liabilities, Fair Value Disclosure	[2]	15,364,782	15,385,894
Significant Other Observable Inputs (Level 2) | Time certificates of deposits (f)
LIABILITIES
Accrued Liabilities, Fair Value Disclosure	[1]	1,384,450	1,529,857
Significant Other Observable Inputs (Level 2) | Federal Home Loan Bank borrowings (f)
LIABILITIES
Federal Home Loan Bank Borrowings, Fair Value Disclosure	[1]	25,626	25,663
Significant Other Observable Inputs (Level 2) | Long-term Debt [Member]
LIABILITIES
Long-term Debt, Fair Value	[1]		13,989
Significant Other Observable Inputs (Level 2) | Junior subordinated debentures (g)
LIABILITIES
Accrued Liabilities, Fair Value Disclosure	[3]	63,654	67,019
Significant Unobservable Inputs (Level 3) | Long-term Debt [Member]
LIABILITIES
Long-term Debt, Fair Value	[1]		0
Significant Unobservable Inputs (Level 3) | Subordinated debentures (f)
LIABILITIES
Accrued Liabilities, Fair Value Disclosure	[1]	43,754	45,532
U.S. Government agency securities
ASSETS
Debt Securities, Held-to-maturity		32,555	32,987	[4]
Held to Maturity, Fair Value, Total		30,981	32,546	[4]
U.S. Government agency securities | Significant Other Observable Inputs (Level 2)
ASSETS
Held to Maturity, Fair Value, Total		30,981	32,546	[4]
U.S. treasury securities
ASSETS
Debt Securities, Held-to-maturity	[4]	100,576	102,560
Held to Maturity, Fair Value, Total	[4]	94,596	102,242
U.S. treasury securities | Significant Other Observable Inputs (Level 2)
ASSETS
Held to Maturity, Fair Value, Total	[4]	94,596	102,242
Agency mortgage-backed securities
ASSETS
Debt Securities, Held-to-maturity	[4]	550,333	493,012
Held to Maturity, Fair Value, Total	[4]	521,183	497,236
Agency mortgage-backed securities | Significant Other Observable Inputs (Level 2)
ASSETS
Held to Maturity, Fair Value, Total	[4]	521,183	497,236
Agency collateralized mortgage obligations
ASSETS
Debt Securities, Held-to-maturity	[4]	576,964	415,736
Held to Maturity, Fair Value, Total	[4]	542,566	408,845
Agency collateralized mortgage obligations | Significant Other Observable Inputs (Level 2)
ASSETS
Held to Maturity, Fair Value, Total	[4]	542,566	408,845
Single issuer trust preferred securities issued by banks
ASSETS
Debt Securities, Held-to-maturity	[4]	1,500	1,500
Held to Maturity, Fair Value, Total	[4]	1,508	1,508
Single issuer trust preferred securities issued by banks | Significant Other Observable Inputs (Level 2)
ASSETS
Held to Maturity, Fair Value, Total	[4]	1,508	1,508
Small Business Administration Pooled Securities [Member]
ASSETS
Debt Securities, Held-to-maturity	[4]	20,513	21,023
Held to Maturity, Fair Value, Total	[4]	20,104	21,756
Small Business Administration Pooled Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
ASSETS
Held to Maturity, Fair Value, Total	[4]	0	0
Small Business Administration Pooled Securities [Member] | Significant Other Observable Inputs (Level 2)
ASSETS
Held to Maturity, Fair Value, Total	[4]	20,104	21,756
Small Business Administration Pooled Securities [Member] | Significant Unobservable Inputs (Level 3)
ASSETS
Held to Maturity, Fair Value, Total	[4]	0	0
Loans, net of allowance for credit losses (b)
ASSETS
Loans, net of allowance for credit losses (b)	[5]	13,410,278	13,439,190
Loans Receivable, Fair Value Disclosure	[5]	13,301,406	13,389,515
Loans, net of allowance for credit losses (b) | Significant Unobservable Inputs (Level 3)
ASSETS
Loans Receivable, Fair Value Disclosure	[5]	13,301,406	13,389,515
Investment in Federal Home Loan Bank Stock [Member]
ASSETS
Federal Home Loan Bank Stock	[6]	11,407	11,407
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	[6]	11,407	11,407
Investment in Federal Home Loan Bank Stock [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
ASSETS
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	[6]	0	0
Investment in Federal Home Loan Bank Stock [Member] | Significant Other Observable Inputs (Level 2)
ASSETS
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	[6]	11,407	11,407
Investment in Federal Home Loan Bank Stock [Member] | Significant Unobservable Inputs (Level 3)
ASSETS
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	[6]	0	0
Cash Surrender Value [Member]
ASSETS
Cash Surrender Value, Fair Value Disclosure	[7]	291,192	289,304
Bank Owned Life Insurance	[7]	291,192	289,304
Cash Surrender Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
ASSETS
Cash Surrender Value, Fair Value Disclosure	[7]	0	0
Cash Surrender Value [Member] | Significant Other Observable Inputs (Level 2)
ASSETS
Cash Surrender Value, Fair Value Disclosure	[7]	291,192	289,304
Cash Surrender Value [Member] | Significant Unobservable Inputs (Level 3)
ASSETS
Cash Surrender Value, Fair Value Disclosure	[7]	$ 0	$ 0

[1] Fair value was determined by discounting anticipated future cash payments using rates currently available for instruments with similar remaining maturities.

[2] Fair value of demand deposits, savings and interest checking accounts and money market deposits is the amount payable on demand at the reporting date.

[3] Fair value was determined based upon market prices of securities with similar terms and maturities.

[4] The fair values presented are based on quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments and/or discounted cash flow analysis.

[5] Fair value of loans is measured using the exit price valuation method, determined primarily by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities or cash flows, while incorporating liquidity and credit assumptions. Additionally, this amount excludes individually assessed collateral dependent loans, which are deemed to be marked to fair value on a nonrecurring basis.

[6] Federal Home Loan Bank stock has no quoted market value and is carried at cost; therefore the carrying amount approximates fair value.

[7] Cash surrender value of life insurance policies is recorded at its cash surrender value (or the amount that can be realized upon surrender of the policy), therefore, carrying amount approximates fair value.

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Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Other noninterest income - ASC 606	$ 1,396	$ 1,125
Total noninterest income in scope of ASC 606	19,625	16,097
Total noninterest income out of scope of ASC 606	6,647	9,149
Noninterest Income	26,272	25,246
Deposit Account [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	5,493	3,584
Credit Card, Merchant Discount [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,472	1,903
ATM Charge [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	841	625
Investment Advisory, Management and Administrative Service [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	7,904	7,402
Investment Advisory, Retail Investment and Insurance Service [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	769	902
Merchant Processing [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	378	320
Credit Card Income [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 372	$ 236

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Revenue Recognition Contract with Customer, Asset (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Investment Management Income Receivable	$ 5,310	$ 5,385

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Comprehensive Income/Loss (Comprehensive Income/(Loss) Presented Net of Taxes) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Equity [Abstract]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax		$ (24,985)	$ (9,159)
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax		7,035	2,576
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax		(17,950)	(6,583)
COMPREHENSIVE INCOME
Change in fair value of securities available for sale, pre tax amount		(81,619)	(10,361)
Change in fair value of securities available for sale, tax (expense) benefit		19,063	2,587
Change in fair value of securities available for sale, after tax amount		(62,556)	(7,774)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax		0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		0	0
Change in fair value of securities available for sale, pre tax amount		(81,619)	(10,361)
Change in fair value of securities available for sale, tax (expense) benefit		19,063	2,587
Change in fair value of securities available for sale, after tax amount		(62,556)	(7,774)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax		(20,480)	(4,779)
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, Tax		5,768	1,344
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax		(14,712)	(3,435)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax		4,505	4,380
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, Tax		(1,267)	(1,232)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax		3,238	3,148
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Loss on Termination of Derivatives, before Tax		0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax			653
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax			(184)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax			469
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		159	442
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax		(45)	(124)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax		114	318
Amortization of certain costs included in net periodic retirement costs, pre tax amount		10	44
Amortization of certain costs included in net periodic retirement costs, tax (expense) benefit		(3)	(12)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax		7	32
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	[1]	169	1,139
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	[1]	(48)	(320)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	[1]	121	819
Total other comprehensive income, pre tax amount		(106,435)	(18,381)
Total other comprehensive income, tax (expense) benefit		26,050	4,843
Total other comprehensive income, after tax amount		(80,385)	(13,538)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Loss on Termination of Derivatives, before Tax		$ 0	$ 0

[1] The amortization of prior service costs is included in the computation of net periodic pension cost as disclosed in Note 14 "Employee Benefit Plans" within the Notes to the Consolidated Financial Statements included in Item 8 of the Company's 2021 Form 10-K.

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Comprehensive Income/Loss (Comprised of the following Components) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 2,183	$ 40,695
Net change in other comprehensive income (loss)	(80,385)	(13,538)
Ending Balance	(78,202)	27,157
Unrealized Gain (Loss) on Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(9,667)	13,255
Net change in other comprehensive income (loss)	(62,556)	(7,774)
Ending Balance	(72,223)	5,481
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	14,137	33,276
Net change in other comprehensive income (loss)	(17,950)	(6,583)
Ending Balance	(3,813)	26,693
Defined Benefit Postretirement Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,287)	(5,836)
Net change in other comprehensive income (loss)	121	819
Ending Balance	(2,166)	(5,017)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net change in other comprehensive income (loss)	$ (80,385)	$ (13,538)

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Commitments and contingencies Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 4,480,447	$ 4,535,895
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	24,416	24,412
Deferred standby letter of credit fees [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	171	124
Obligation to Repurchase Receivables Sold [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 186,426	$ 202,717

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Commitments and contingencies Textual (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Operating Lease, Impairment Loss	$ 4,400
Minimum [Member]
Lessee, Operating Lease, Renewal Term	1 year
Maximum [Member]
Lessee, Operating Lease, Renewal Term	20 years

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Subsequent Events (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Subsequent Event [Line Items]
Financing Recievable, Commercial and Industrial	$ 15,800,000
Gain (Loss) on Sales of Loans, Net	599,000	$ 8,100,000
Commercial And Industrial [Member]
Subsequent Event [Line Items]
Gain (Loss) on Sales of Loans, Net	$ 2,500,000