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 September 30, 2022

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

For the transition period from                           to                          

Commission file number: 001-37700

NICOLET BANKSHARES, INC.

(Exact Name of Registrant as Specified in its Charter)

Wisconsin				47-0871001
(State or Other Jurisdiction of Incorporation or Organization)				(I.R.S. Employer Identification No.)
111 North Washington Street
	Green Bay,	Wisconsin		54301
(Address of Principal Executive Offices)				(Zip Code)
(920)			430-1400
(Registrant’s Telephone Number, Including Area Code)
N/A (Former Name, Former Address and Former Fiscal Year, if Changed Since Last Report)

Securities registered pursuant to Section 12(b) of the Act:
Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	NIC	New York Stock Exchange

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

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

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

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

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

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

As of October 31, 2022 there were 14,676,910 shares of $0.01 par value common stock outstanding.

Nicolet Bankshares, Inc.

Quarterly Report on Form 10-Q

September 30, 2022

TABLE OF CONTENTS

			PAGE
PART I	FINANCIAL INFORMATION
	Item 1.	Financial Statements:
		Consolidated Balance Sheets	3
		Consolidated Statements of Income	4
		Consolidated Statements of Comprehensive Income (Loss)	5
		Consolidated Statements of Stockholders’ Equity	6
		Consolidated Statements of Cash Flows	7
		Notes to Unaudited Consolidated Financial Statements	8
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	48
	Item 4.	Controls and Procedures	48
PART II	OTHER INFORMATION
	Item 1.	Legal Proceedings	50
	Item 1A.	Risk Factors	50
	Item 2.	Unregistered Sales of Equity Securities and Use of  Proceeds	50
	Item 3.	Defaults Upon Senior Securities	50
	Item 4.	Mine Safety Disclosures	50
	Item 5.	Other Information	50
	Item 6.	Exhibits	51
		Signatures	52

2

PART I – FINANCIAL INFORMATION

Item 1. FINANCIAL STATEMENTS:

NICOLET BANKSHARES, INC.

Consolidated Balance Sheets

(In thousands, except share and per share data)

	September 30, 2022		December 31, 2021
	(Unaudited)		(Audited)
Assets
Cash and due from banks	$	118,537	$	209,349
Interest-earning deposits	319,745		385,943
Cash and cash equivalents	438,282		595,292
Certificates of deposit in other banks	13,510		21,920
Securities available for sale (“AFS”), at fair value	949,597		921,661
Securities held to maturity (“HTM”), at amortized cost	686,424		651,803
Other investments	79,279		44,008
Loans held for sale	3,709		6,447
Other assets held for sale	—		199,833
Loans	5,984,437		4,621,836
Allowance for credit losses - loans (“ACL-Loans”)	(60,348)		(49,672)
Loans, net	5,924,089		4,572,164
Premises and equipment, net	106,648		94,566
Bank owned life insurance (“BOLI”)	165,166		134,476
Goodwill and other intangibles, net	407,117		339,492
Accrued interest receivable and other assets	122,095		113,375
Total assets	$	8,895,916	$	7,695,037
Liabilities and Stockholders’ Equity
Liabilities:
Noninterest-bearing demand deposits	$	2,477,507	$	1,975,705
Interest-bearing deposits	4,918,395		4,490,211
Total deposits	7,395,902		6,465,916
Short-term borrowings	280,000		—
Long-term borrowings	225,236		216,915
Other liabilities held for sale	—		51,586
Accrued interest payable and other liabilities	56,315		68,729
Total liabilities	7,957,453		6,803,146
Stockholders’ Equity:
Common stock	147		140
Additional paid-in capital	620,392		575,045
Retained earnings	380,263		313,604
Accumulated other comprehensive income (loss)	(62,339)		3,102
Total stockholders’ equity	938,463		891,891
Total liabilities and stockholders’ equity	$	8,895,916	$	7,695,037
Preferred shares authorized (no par value)	10,000,000		10,000,000
Preferred shares issued and outstanding	—		—
Common shares authorized (par value $0.01 per share)	30,000,000		30,000,000
Common shares outstanding	14,673,197		13,994,079
Common shares issued	14,746,123		14,019,880

See accompanying notes to unaudited consolidated financial statements.

3

ITEM 1. Financial Statements Continued:

NICOLET BANKSHARES, INC.

Consolidated Statements of Income

(In thousands, except share and per share data) (Unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Interest income:
Loans, including loan fees	$	63,060	$	35,294	$	167,313	$	104,267
Investment securities:
Taxable	5,350		2,061		15,612		5,935
Tax-exempt	1,181		517		2,503		1,582
Other interest income	1,127		869		2,734		2,140
Total interest income	70,718		38,741		188,162		113,924
Interest expense:
Deposits	4,638		2,444		9,240		7,799
Short-term borrowings	594		—		622		—
Long-term borrowings	2,496		1,113		6,431		1,729
Total interest expense	7,728		3,557		16,293		9,528
Net interest income	62,990		35,184		171,869		104,396
Provision for credit losses	8,600		6,000		9,650		6,500
Net interest income after provision for credit losses	54,390		29,184		162,219		97,896
Noninterest income:
Trust services fee income	1,969		2,043		5,984		5,724
Brokerage fee income	3,040		3,154		9,716		8,938
Mortgage income, net	1,728		4,808		7,186		17,637
Service charges on deposit accounts	1,589		1,314		4,602		3,541
Card interchange income	3,012		2,299		8,543		6,492
BOLI income	966		572		2,667		1,658
Asset gains (losses), net	(46)		(1,187)		2,870		3,716
Other income	742		993		1,506		3,594
Total noninterest income	13,000		13,996		43,074		51,300
Noninterest expense:
Personnel	24,136		16,927		65,008		49,127
Occupancy, equipment and office	7,641		5,749		21,476		13,939
Business development and marketing	2,281		1,654		6,169		3,853
Data processing	3,664		2,939		10,647		8,408
Intangibles amortization	1,628		758		4,399		2,400
FDIC assessments	480		480		1,440		1,555
Merger-related expense	519		2,793		1,172		3,449
Other expense	2,218		1,761		6,344		7,158
Total noninterest expense	42,567		33,061		116,655		89,889
Income before income tax expense	24,823		10,119		88,638		59,307
Income tax expense	6,313		2,295		21,979		14,960
Net income	$	18,510	$	7,824	$	66,659	$	44,347
Earnings per common share:
Basic	$	1.33	$	0.75	$	4.88	$	4.39
Diluted	$	1.29	$	0.73	$	4.72	$	4.22
Weighted average common shares outstanding:
Basic	13,890,066		10,391,896		13,647,973		10,098,492
Diluted	14,310,275		10,775,591		14,126,772		10,503,163

See accompanying notes to unaudited consolidated financial statements.

4

ITEM 1. Financial Statements Continued:

NICOLET BANKSHARES, INC.

Consolidated Statements of Comprehensive Income (Loss)

(In thousands) (Unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Net income	$	18,510	$	7,824	$	66,659	$	44,347
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on securities AFS:
Net unrealized holding gains (losses)	(26,162)		(3,074)		(89,630)		(8,581)
Net realized (gains) losses included in income	—		13		(15)		13
Income tax (expense) benefit	7,064		827		24,204		2,313
Total other comprehensive income (loss)	(19,098)		(2,234)		(65,441)		(6,255)
Comprehensive income (loss)	$	(588)	$	5,590	$	1,218	$	38,092

See accompanying notes to unaudited consolidated financial statements.

5

ITEM 1. Financial Statements Continued:

NICOLET BANKSHARES, INC.

Consolidated Statements of Stockholders’ Equity

(In thousands) (Unaudited)

	Common Stock		Additional Paid-In Capital		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Total
Balances at June 30, 2022	$	134	$	520,741	$	361,753	$	(43,241)	$	839,387
Comprehensive income:
Net income, three months ended September 30, 2022	—		—		18,510		—		18,510
Other comprehensive income (loss)	—		—		—		(19,098)		(19,098)
Issuance of common stock in acquisition	13		98,136		—		—		98,149
Stock-based compensation expense	—		1,329		—		—		1,329
Exercise of stock options, net	—		1		—		—		1
Issuance of common stock	—		185		—		—		185
Balances at September 30, 2022	$	147	$	620,392	$	380,263	$	(62,339)	$	938,463
Balances at June 30, 2021	$	98	$	261,096	$	289,475	$	8,726	$	559,395
Comprehensive income:
Net income, three months ended September 30, 2021	—		—		7,824		—		7,824
Other comprehensive income (loss)	—		—		—		(2,234)		(2,234)
Issuance of common stock in acquisition	23		179,411		—		—		179,434
Stock-based compensation expense	—		1,826		—		—		1,826
Exercise of stock options, net	1		160		—		—		161
Issuance of common stock	—		163		—		—		163
Purchase and retirement of common stock	(2)		(17,289)		—		—		(17,291)
Balances at September 30, 2021	$	120	$	425,367	$	297,299	$	6,492	$	729,278
Balances at December 31, 2021	$	140	$	575,045	$	313,604	$	3,102	$	891,891
Comprehensive income:
Net income, nine months ended September 30, 2022	—		—		66,659		—		66,659
Other comprehensive income (loss)	—		—		—		(65,441)		(65,441)
Issuance of common stock in acquisition	13		98,136		—		—		98,149
Stock-based compensation expense	—		5,282		—		—		5,282
Exercise of stock options, net	1		2,077		—		—		2,078
Issuance of common stock	—		557		—		—		557
Purchase and retirement of common stock	(7)		(60,705)		—		—		(60,712)
Balances at September 30, 2022	$	147	$	620,392	$	380,263	$	(62,339)	$	938,463
Balances at December 31, 2020	$	100	$	273,390	$	252,952	$	12,747	$	539,189
Comprehensive income:
Net income, nine months ended September 30, 2021	—		—		44,347		—		44,347
Other comprehensive income (loss)	—		—		—		(6,255)		(6,255)
Issuance of common stock in acquisition	23		179,411		—		—		179,434
Stock-based compensation expense	—		5,222		—		—		5,222
Exercise of stock options, net	1		1,385		—		—		1,386
Issuance of common stock	—		395		—		—		395
Purchase and retirement of common stock	(4)		(34,436)		—		—		(34,440)
Balances at September 30, 2021	$	120	$	425,367	$	297,299	$	6,492	$	729,278

See accompanying notes to unaudited consolidated financial statements.

6

ITEM 1. Financial Statements Continued:

NICOLET BANKSHARES, INC.

Consolidated Statements of Cash Flows (Unaudited)

(In thousands)	Nine Months Ended September 30,
	2022		2021
Cash Flows From Operating Activities:
Net income	$	66,659	$	44,347
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and accretion	16,994		9,301
Provision for credit losses	9,650		6,500
Increase in cash surrender value of life insurance	(2,551)		(1,658)
Stock-based compensation expense	5,282		5,222
Asset (gains) losses, net	(2,870)		(3,716)
Gain on sale of loans held for sale, net	(4,520)		(16,289)
Net change due to:
Proceeds from sale of loans held for sale	188,093		503,405
Origination of loans held for sale	(182,962)		(485,641)
Accrued interest receivable and other assets	7,719		(6,721)
Accrued interest payable and other liabilities	(14,145)		(2,488)
Net cash provided by (used in) operating activities	87,349		52,262
Cash Flows From Investing Activities:
Net (increase) decrease in loans	(537,001)		10,406
Net (increase) decrease in certificates of deposit in other banks	8,419		8,561
Purchases of securities AFS	(8,623)		(214,343)
Purchases of securities HTM	(56,479)		(20,996)
Proceeds from sales of securities AFS	23,984		15,975
Proceeds from calls and maturities of securities AFS	70,781		81,681
Proceeds from calls and maturities of securities HTM	21,378		—
Purchases of other investments	(30,327)		(4,787)
Proceeds from sales of other investments	4,014		1,534
Proceeds from redemption of BOLI	578		—
Net (increase) decrease in premises and equipment	(7,965)		(6,894)
Net (increase) decrease in other real estate and other assets	9,785		1,046
Net cash (paid) received in branch sale	147,833		—
Net cash (paid) received in business combination	(28,221)		394,868
Net cash provided by (used in) investing activities	(381,844)		267,051
Cash Flows From Financing Activities:
Net increase (decrease) in deposits	68,428		199,698
Net increase (decrease) in short-term borrowings	147,134		—
Proceeds from long-term borrowings	—		103,953
Repayments of long-term borrowings	(20,000)		(42,559)
Purchase and retirement of common stock	(60,712)		(34,440)
Proceeds from issuance of common stock	557		395
Proceeds from exercise of stock options	2,078		1,386
Net cash provided by (used in) financing activities	137,485		228,433
Net increase (decrease) in cash and cash equivalents	(157,010)		547,746
Cash and cash equivalents:
Beginning	595,292		802,859
Ending *	$	438,282	$	1,350,605
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	$	19,785	$	9,320
Cash paid for taxes	25,660		24,116
Transfer of loans and bank premises to other real estate owned	432		302
Capitalized mortgage servicing rights	2,127		3,191
Acquisitions:
Fair value of assets acquired	$	1,118,000	$	1,556,000
Fair value of liabilities assumed	1,034,000		1,409,000
Net assets acquired	84,000		147,000

* There was no restricted cash in cash and cash equivalents at September 30, 2022, while cash and cash equivalents at September 30, 2021, included restricted cash of $1.9 million pledged as collateral on interest rate swaps. No reserve balance was required with the Federal Reserve Bank at either September 30, 2022 or September 30, 2021.

See accompanying notes to unaudited consolidated financial statements.

7

NICOLET BANKSHARES, INC.

Notes to Unaudited Consolidated Financial Statements

Note 1 – Basis of Presentation

General

In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments necessary to present fairly the consolidated balance sheets, statements of income, comprehensive income (loss), changes in stockholders’ equity and cash flows of Nicolet Bankshares, Inc. (the “Company” or “Nicolet”) and its subsidiaries, as of and for the periods presented, and all such adjustments are of a normal recurring nature. All material intercompany transactions and balances have been eliminated. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the entire year.

These interim consolidated financial statements have been prepared according to the rules and regulations of the Securities and Exchange Commission and, therefore, certain information and footnote disclosures normally presented in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been omitted or abbreviated. These consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Critical Accounting Policies and Estimates

Preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Estimates are used in accounting for, among other items, the allowance for credit losses, valuation of loans in acquisition transactions, useful lives for depreciation and amortization, fair value of financial instruments, impairment calculations, valuation of deferred tax assets, uncertain income tax positions and contingencies. Estimates that are particularly susceptible to significant change for the Company include the determination of the allowance for credit losses, the determination and assessment of deferred tax assets and liabilities, and the valuation of loans acquired in acquisition transactions; therefore, these are critical accounting policies. Factors that may cause sensitivity to the aforementioned estimates include but are not limited to: external market factors such as market interest rates and employment rates, changes to operating policies and procedures, changes in applicable banking or tax regulations, and changes to deferred tax estimates. Actual results may ultimately differ from estimates, although management does not generally believe such differences would materially affect the consolidated financial statements in any individual reporting period presented.

There have been no material changes or developments with respect to the assumptions or methodologies that the Company uses when applying what management believes are critical accounting policies and developing critical accounting estimates as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Future Accounting Pronouncements

In March 2022, the FASB issued ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings (“TDRs”) and Vintage Disclosures. This ASU eliminates the accounting guidance for TDRs by creditors, while enhancing the disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. The ASU also requires public business entities to expand the vintage disclosures to include gross charge-offs by year of origination. The updated guidance is effective for fiscal years beginning after December 15, 2022, with early adoption permitted. Adoption of this amendment is not expected to have a material impact on the Company’s consolidated financial statements; though, it will result in new disclosures of gross charge-offs by year of origination and on the types of loan modifications to borrowers experiencing financial difficulties. Current TDR disclosures will be also removed.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. It provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The updated guidance is effective for all entities as of March 12, 2020 through December 31, 2022. The Company continues to work through the cessation of LIBOR, including the modification of its loans and other financial instruments with attributes that are either directly or indirectly influenced by LIBOR. The Company expects to utilize the reference rate reform transition guidance, as applicable, and does not expect such adoption to have a material impact on its consolidated financial statements or financial disclosures. The Company will continue to assess the impact as the reference rate transition approaches June 30, 2023.

Reclassifications

Certain amounts in the 2021 consolidated financial statements have been reclassified to conform to the 2022 presentation. These reclassifications were not material and did not impact previously reported net income or comprehensive income.

8

Note 2 – Acquisitions

Completed Acquisitions:

Charter Bankshares, Inc. (“Charter”): On August 26, 2022, Nicolet completed its merger with Charter, pursuant to the Agreement and Plan of Merger dated March 29, 2022 (the “Charter Merger Agreement”), at which time Charter merged with and into Nicolet, and Charter Bank, the wholly owned bank subsidiary of Charter, was merged with and into Nicolet National Bank (the “Bank”), the wholly owned bank subsidiary of Nicolet.

Pursuant to the Charter Merger Agreement, each share of Charter common stock issued and outstanding immediately prior to the effective time of the merger was converted into the right to receive 15.458 shares of Nicolet common stock and $475 in cash. As a result, Nicolet issued approximately 1.26 million shares of Nicolet common stock for stock consideration of $98 million and cash consideration of $39 million, for a total purchase price of $137 million. With the Charter merger, Nicolet expanded to Western Wisconsin and Minnesota.

A summary of the assets acquired and liabilities assumed in the Charter transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from Charter		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	10	$	—	$	10
Investment securities	218		—		218
Loans	848		(21)		827
ACL-Loans	(9)		7		(2)
Premises and equipment	9		1		10
BOLI	29		—		29
Core deposit intangible	—		19		19
Other assets	5		2		7
Total assets	$	1,110	$	8	$	1,118
Liabilities Assumed:
Deposits	$	869	$	1	$	870
Borrowings	161		—		161
Other liabilities	3		—		3
Total liabilities	$	1,033	$	1	$	1,034
Net assets acquired					$	84
Purchase Price:
Nicolet common stock issued (in shares)					1,262,360
Value of Nicolet common stock consideration					$	98
Cash consideration paid					39
Total purchase price					$	137
Preliminary goodwill					$	53

The Company purchased loans through the acquisition of Charter for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (purchased credit deteriorated loans or “PCD” loans). The carrying amount of these loans at acquisition was as follows.

(In thousands)	August 26, 2022
Purchase price of PCD loans at acquisition	$	24,031
Allowance for credit losses on PCD loans at acquisition	1,709
Par value of PCD acquired loans at acquisition	$	25,740

The Company accounted for the Charter acquisition under the acquisition method of accounting, and thus, the financial position and results of operations of Charter prior to the consummation date were not included in the accompanying consolidated financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective estimated fair values at the date of acquisition. The estimated fair value was determined with the assistance of third party

9

valuations, appraisals, and third party advisors. Goodwill arising as a result of the Charter acquisition is not deductible for tax purposes.

County Bancorp, Inc. (“County”): On December 3, 2021, Nicolet completed its merger with County, pursuant to the Agreement and Plan of Merger dated June 22, 2021 (the “County Merger Agreement”), at which time County merged with and into Nicolet, and Investors Community Bank, the wholly owned bank subsidiary of County, was merged with and into the Bank.

Pursuant to the County Merger Agreement, each share of County common stock issued and outstanding immediately prior to the effective time of the merger was converted into the right to receive, at the election of the shareholder, either cash of $37.18 or 0.48 shares of Nicolet common stock, subject to proration procedures such that 1,237,000 shares of County common stock were exchanged for cash, and the remaining shares were exchanged for Nicolet common stock. As a result, Nicolet issued approximately 2.4 million shares of Nicolet common stock for stock consideration of $176 million and cash consideration of $48 million, or a total purchases price of $224 million. With the County merger, Nicolet became the premier agriculture lender throughout Wisconsin.

A summary of the assets acquired and liabilities assumed in the County transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from County		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	20	$	—	$	20
Investment securities	301		(1)		300
Loans	1,015		(1)		1,014
ACL-Loans	(11)		8		(3)
Premises and equipment	21		(4)		17
BOLI	33		—		33
Core deposit intangible	—		7		7
Loan servicing rights	20		—		20
Other assets	6		(2)		4
Total assets	$	1,405	$	7	$	1,412
Liabilities Assumed:
Deposits	$	1,027	$	3	$	1,030
Borrowings	218		1		219
Other liabilities	8		—		8
Total liabilities	$	1,253	$	4	$	1,257
Net assets acquired					$	155
Purchase Price:
Nicolet common stock issued (in shares)					2,366,243
Value of Nicolet common stock consideration					$	176
Cash consideration paid					48
Total purchase price					$	224
Write-off prior investment in County					(1)
Goodwill					$	70

The Company purchased loans through the acquisition of County for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (PCD loans). The carrying amount of these loans at acquisition was as follows.

(In thousands)	December 3, 2021
Purchase price of PCD loans at acquisition	$	64,948
Allowance for credit losses on PCD loans at acquisition	3,262
Par value of PCD acquired loans at acquisition	$	68,210

The Company accounted for the County acquisition under the acquisition method of accounting, and thus, the financial position and results of operations of County prior to the consummation date were not included in the accompanying consolidated

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financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective estimated fair values at the date of acquisition. The estimated fair value was determined with the assistance of third party valuations, appraisals, and third party advisors. Goodwill arising as a result of the County acquisition is not deductible for tax purposes.

Mackinac Financial Corporation (“Mackinac”): On September 3, 2021, Nicolet completed its merger with Mackinac, pursuant to the terms of the Agreement and Plan of Merger dated April 12, 2021 (the “Mackinac Merger Agreement”), at which time Mackinac merged with and into Nicolet, and mBank, the wholly owned bank subsidiary of Mackinac, was merged with and into the Bank.

Pursuant to the Mackinac Merger Agreement, Mackinac shareholders received fixed consideration of 0.22 shares of Nicolet common stock and $4.64 in cash for each share of Mackinac common stock owned, resulting in the issuance of approximately 2.3 million shares of Nicolet common stock for stock consideration of $180 million and cash consideration of $49 million, or a total purchase price of $229 million. The Mackinac merger expanded Nicolet prominently into Northern Michigan and the Upper Peninsula of Michigan, and added to Nicolet’s presence in upper northeastern Wisconsin.

A summary of the assets acquired and liabilities assumed in the Mackinac transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from Mackinac		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	448	$	—	$	448
Investment securities	104		—		104
Loans	930		10		940
ACL-Loans	(6)		4		(2)
Premises and equipment	24		(3)		21
BOLI	16		—		16
Goodwill	20		(20)		—
Other intangibles	4		3		7
Other assets	25		(3)		22
Total assets	$	1,565	$	(9)	$	1,556
Liabilities Assumed:
Deposits	$	1,365	$	1	$	1,366
Borrowings	28		1		29
Other liabilities	13		1		14
Total liabilities	$	1,406	$	3	$	1,409
Net assets acquired					$	147
Purchase Price:
Nicolet common stock issued (in shares)					2,337,230
Value of Nicolet common stock consideration					$	180
Cash consideration paid					49
Total purchase price					$	229
Write-off prior investment in Mackinac					(2)
Goodwill					$	84

The Company purchased loans through the acquisition of Mackinac for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (PCD loans). The carrying amount of these loans at acquisition was as follows.

(In thousands)	September 3, 2021
Purchase price of PCD loans at acquisition	$	10,605
Allowance for credit losses on PCD loans at acquisition	1,896
Par value of PCD acquired loans at acquisition	$	12,501

The Company accounted for the Mackinac acquisition under the acquisition method of accounting, and thus, the financial position and results of operations of Mackinac prior to the consummation date were not included in the accompanying

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consolidated financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective estimated fair values at the date of acquisition. The estimated fair value was determined with the assistance of third party valuations, appraisals, and third party advisors. Goodwill arising as a result of the Mackinac acquisition is not deductible for tax purposes.

Summary Unaudited Pro Forma Information: The following unaudited pro forma information is presented for illustrative purposes only, and gives effect to the acquisitions of County and Mackinac as if the acquisitions had occurred on January 1, 2021, the beginning of the earliest period presented. The pro forma information should not be relied upon as being indicative of the historical results of operations the companies would have had if the acquisitions had occurred before such periods or the future results of operations that the companies will experience as a result of the mergers. The pro forma information, although helpful in illustrating the financial characteristics of the combined company under one set of assumptions, does not reflect the benefits of expected cost savings, opportunities to earn additional revenue, the impact of restructuring and merger-related expenses, or other factors that may result as a consequence of the mergers and, accordingly, does not attempt to predict or suggest future results.

	Three Months Ended		Nine Months Ended
(In thousands, except per share data)	September 30, 2021		September 30, 2021
Total revenue, net of interest expense	$	84,802	$	241,287
Net income	$	16,470	$	62,243
Diluted earnings per common share	$	1.06	$	4.09

Note 3 – Earnings per Common Share

Basic earnings per common share are calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per common share are calculated by dividing net income by the weighted average number of shares adjusted for the dilutive effect of common stock awards (outstanding stock options and unvested restricted stock), if any. Presented below are the calculations for basic and diluted earnings per common share.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2022		2021		2022		2021
Net income	$	18,510	$	7,824	$	66,659	$	44,347
Weighted average common shares outstanding	13,890		10,392		13,648		10,098
Effect of dilutive common stock awards	420		384		479		405
Diluted weighted average common shares outstanding	14,310		10,776		14,127		10,503
Basic earnings per common share*	$	1.33	$	0.75	$	4.88	$	4.39
Diluted earnings per common share*	$	1.29	$	0.73	$	4.72	$	4.22

*Cumulative quarterly per share performance may not equal annual per share totals due to the effects of the amount and timing of capital increases. When computing earnings per share for an interim period, the denominator is based on the weighted average shares outstanding during the interim period, and not on an annualized weighted average basis. Accordingly, the sum of the earnings per share data for the quarters will not necessarily equal the year to date earnings per share data.

For the three months ended September 30, 2022 and 2021, respectively, options to purchase approximately 0.2 million shares are excluded from the calculation of diluted earnings per common share as the effect of their exercise would have been anti-dilutive. For the nine months ended September 30, 2022 and 2021, respectively, options to purchase approximately 0.1 million shares are excluded from the calculation of diluted earnings per common share as the effect of their exercise would have been anti-dilutive.

Note 4 – Stock-Based Compensation

The Company may grant stock options and restricted stock under its stock-based compensation plans to certain officers, employees and directors. These plans are administered by a committee of the Board of Directors, and at September 30, 2022, approximately 0.7 million shares were available for grant under these stock-based compensation plans.

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A Black-Scholes model is utilized to estimate the fair value of stock option grants, while the market price of the Company’s stock at the date of grant is used to estimate the fair value of restricted stock awards. The weighted average assumptions used in the Black-Scholes model for valuing stock option grants for the nine months ended September 30, 2022 and 2021 were as follows.

	Nine Months Ended September 30,
	2022			2021
Dividend yield	—		%	—		%
Expected volatility	30		%	30		%
Risk-free interest rate	3.03		%	1.16		%
Expected average life	7 years			7 years
Weighted average per share fair value of options	$	30.99		$	26.55

A summary of the Company’s stock option activity is summarized below.

Stock Options	Option Shares Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Life (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding - December 31, 2021	1,833,246	$	57.69
Granted	132,929	81.04
Exercise of stock options *	(65,661)	41.26
Forfeited	(8,500)	77.62
Outstanding - September 30, 2022	1,892,014	$	59.81	6.2	$	24,920
Exercisable - September 30, 2022	1,207,585	$	50.84	4.9	$	24,324

* The terms of the stock option agreements permit having a number of shares of stock withheld, the fair market value of which as of the date of exercise is sufficient to satisfy the exercise price and/or tax withholding requirements. For the nine months ended September 30, 2022, 6,073 such shares were withheld by the Company.

Intrinsic value represents the amount by which the fair market value of the underlying stock exceeds the exercise price of the stock options. The intrinsic value of options exercised for the nine months ended September 30, 2022 and 2021 was approximately $3.3 million and $1.7 million, respectively.

A summary of the Company’s restricted stock activity is summarized below.

Restricted Stock	Weighted Average Grant Date Fair Value		Restricted Shares Outstanding
Outstanding - December 31, 2021	$	71.42	25,801
Granted	75.99		60,852
Vested *	71.51		(13,127)
Forfeited	56.01		(600)
Outstanding - September 30, 2022	$	75.34	72,926

* The terms of the restricted stock agreements permit the surrender of shares to the Company upon vesting in order to satisfy applicable tax withholding requirements at the minimum statutory withholding rate, and accordingly, 465 shares were surrendered during the nine months ended September 30, 2022.

The Company recognized approximately $4.6 million and $4.5 million of stock-based compensation expense (included in personnel on the consolidated statements of income) for the nine months ended September 30, 2022 and 2021, respectively, associated with its common stock awards granted to officers and employees. In addition, during the nine months ended September 30, 2022, the Company recognized approximately $0.7 million of director expense (included in other expense on the consolidated statements of income) for restricted stock grants totaling 8,852 shares with immediate vesting to directors, while during the first nine months of 2021, the Company recognized approximately $0.7 million of director expense for restricted stock grants totaling 9,595 shares with immediate vesting to directors, in each case representing the annual stock retainer fee paid to external board members for that year. As of September 30, 2022, there was approximately $19.9 million of unrecognized compensation cost related to equity award grants, which is expected to be recognized over the remaining vesting period of approximately four years. The Company recognized a tax benefit of approximately $0.4 million and $0.3 million for the nine months ended September 30, 2022 and 2021, respectively, for the tax impact of stock option exercises and vesting of restricted stock.

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Note 5 – Securities and Other Investments

Securities

Securities are classified as AFS or HTM on the consolidated balance sheets at the time of purchase. AFS securities include those securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity, and are carried at fair value on the consolidated balance sheets. HTM securities include those securities which the Company has both the positive intent and ability to hold to maturity, and are carried at amortized cost on the consolidated balance sheets. Premiums and discounts on investment securities are amortized or accreted into interest income over the estimated life of the related securities using the effective interest method.

The amortized cost and fair value of securities AFS and HTM are summarized as follows.

	September 30, 2022
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	194,295	$	—	$	9,532	$	184,763	19	%
State, county and municipals	454,740		32		42,908		411,864		43	%
Mortgage-backed securities	239,430		1		25,996		213,435		23	%
Corporate debt securities	146,528		—		6,993		139,535		15	%
Total securities AFS	$	1,034,993	$	33	$	85,429	$	949,597	100	%
Securities HTM:
U.S. government agency securities	$	506,952	$	65	$	38,590	$	468,427	74	%
State, county and municipals	39,121		1		3,363		35,759		6	%
Mortgage-backed securities	140,351		—		16,898		123,453		20	%
Total securities HTM	$	686,424	$	66	$	58,851	$	627,639	100	%

	December 31, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	192,506	$	6	$	1,235	$	191,277	21	%
State, county and municipals	311,717		3,222		2,202		312,737		34	%
Mortgage-backed securities	270,017		3,090		1,845		271,262		29	%
Corporate debt securities	143,172		3,459		246		146,385		16	%
Total securities AFS	$	917,412	$	9,777	$	5,528	$	921,661	100	%
Securities HTM:
U.S. government agency securities	$	508,810	$	—	$	2,740	$	506,070	78	%
State, county and municipals	42,876		10		173		42,713		7	%
Mortgage-backed securities	100,117		89		595		99,611		15	%
Total securities HTM	$	651,803	$	99	$	3,508	$	648,394	100	%

All mortgage-backed securities included in the tables above were issued by U.S. government agencies and corporations. Investment securities with a carrying value of $786 million and $277 million, as of September 30, 2022 and December 31, 2021, respectively, were pledged as collateral to secure public deposits, as applicable, and for liquidity or other purposes as required by regulation. Accrued interest on investment securities totaled $7 million at September 30, 2022 and $5 million at December 31, 2021, and is included in accrued interest receivable and other assets on the consolidated balance sheets.

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The following table presents gross unrealized losses and the related estimated fair value of investment securities for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position.

	September 30, 2022
	Less than 12 months				12 months or more				Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Number of Securities
Securities AFS:
U.S. government agency securities	$	73,427	$	3,649	$	111,307	$	5,883	$	184,734	$	9,532	18
State, county and municipals	325,212		29,803		66,031		13,105		391,243		42,908		906
Mortgage-backed securities	163,160		17,180		49,315		8,816		212,475		25,996		384
Corporate debt securities	123,488		5,218		11,668		1,775		135,156		6,993		94
Total	$	685,287	$	55,850	$	238,321	$	29,579	$	923,608	$	85,429	1,402
Securities HTM:
U.S. government agency securities	$	459,059	$	38,590	$	—	$	—	$	459,059	$	38,590	6
State, county and municipals	25,308		2,663		4,495		700		29,803		3,363		58
Mortgage-backed securities	117,168		15,696		6,285		1,202		123,453		16,898		106
Total	$	601,535	$	56,949	$	10,780	$	1,902	$	612,315	$	58,851	170

	December 31, 2021
	Less than 12 months				12 months or more				Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Number of Securities
Securities AFS:
U.S. government agency securities	$	190,432	$	1,235	$	—	$	—	$	190,432	$	1,235	11
State, county and municipals	103,950		2,119		1,777		83		105,727		2,202		132
Mortgage-backed securities	137,561		1,616		6,068		229		143,629		1,845		159
Corporate debt securities	23,267		246		—		—		23,267		246		13
Total	$	455,210	$	5,216	$	7,845	$	312	$	463,055	$	5,528	315
Securities HTM:
U.S. government agency securities	$	505,938	$	2,740	$	—	$	—	$	505,938	$	2,740	9
State, county and municipals	30,898		173		—		—		30,898		173		46
Mortgage-backed securities	69,333		595		—		—		69,333		595		72
Total	$	606,169	$	3,508	$	—	$	—	$	606,169	$	3,508	127

Quarterly, the Company evaluates securities AFS in unrealized loss positions to determine whether the impairment is due to credit-related factors or noncredit-related factors. In making this evaluation, management considers the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of the Company to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value. As of September 30, 2022 and December 31, 2021, no allowance for credit losses on securities AFS was recognized. The Company does not consider its securities AFS with unrealized losses to be attributable to credit-related factors, as the unrealized losses in each category have occurred as a result of changes in noncredit-related factors such as changes in interest rates, market spreads and market conditions subsequent to purchase, not credit deterioration. Furthermore, the Company does not have the intent to sell any of these securities AFS and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost.

The Company also evaluates securities HTM quarterly to determine whether an allowance for credit losses is necessary. In making this determination, management considers the facts and circumstances of the underlying investment securities. The U.S. government agency securities include U.S. Treasury Notes which are guaranteed by the U.S. government. For the state, county and municipal securities, management considers issuer bond ratings, historical loss rates by bond ratings, whether issuers continue to make timely principal and interest payments per the contractual terms of the investment securities, internal forecasts, and whether or not such investment securities provide insurance, other credit enhancement, or are pre-refunded by the issuers. For the mortgage-backed securities, all such securities were issued by U.S. government agencies and corporations,

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which are currently explicitly or implicitly guaranteed by the U.S. government and have a long history of no credit losses. Therefore, management determined no allowance for credit losses was necessary for the securities HTM.

The amortized cost and fair value of investment securities by contractual maturity are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties; as this is particularly inherent in mortgage-backed securities, these securities are not included in the maturity categories below.

As of September 30, 2022	Securities AFS				Securities HTM
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	220,008	$	214,856	$	5,032	$	5,022
Due in one year through five years	189,795		180,208		510,548		471,106
Due after five years through ten years	233,100		206,362		26,740		24,404
Due after ten years	152,660		134,736		3,753		3,654
	795,563		736,162		546,073		504,186
Mortgage-backed securities	239,430		213,435		140,351		123,453
Total investment securities	$	1,034,993	$	949,597	$	686,424	$	627,639

Proceeds and realized gains or losses from the sale of AFS securities were as follows.

	Nine Months Ended September 30,
(in thousands)	2022		2021
Gross gains	$	20	$	4
Gross losses	(5)		(17)
Gains (losses) on sales of securities AFS, net	$	15	$	(13)
Proceeds from sales of securities AFS *	$	23,984	$	15,975

* Includes proceeds of $21 million recognized on the sale of securities AFS upon acquisition of Charter for which no gain or loss was recognized in the income statement as the securities were marked to fair value through purchase accounting.

Other Investments

Other investments include “restricted” equity securities, equity securities with readily determinable fair values, and private company securities. As a member of the Federal Reserve Bank System and the Federal Home Loan Bank (“FHLB”) System, Nicolet is required to maintain an investment in the capital stock of these entities. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other exchange traded equity securities. As no ready market exists for these stocks, and they have no quoted market value, these investments are carried at cost. Also included are investments in other private companies that do not have quoted market prices, which are carried at cost less impairment charges, if any. The carrying value of other investments are summarized as follows.

	September 30, 2022		December 31, 2021
(in thousands)	Amount		Amount
Federal Reserve Bank stock	$	34,722	$	20,973
Federal Home Loan Bank (“FHLB”) stock	22,939		10,545
Equity securities with readily determinable fair values	4,482		5,660
Other investments	17,136		6,830
Total other investments	$	79,279	$	44,008

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Note 6 – Loans, Allowance for Credit Losses - Loans, and Credit Quality

The loan composition is summarized as follows.

	September 30, 2022					December 31, 2021
(in thousands)	Amount			% of Total		Amount			% of Total
Commercial & industrial	$	1,268,252		21	%	$	1,042,256		23	%
Owner-occupied commercial real estate (“CRE”)	954,933			16		787,189			17
Agricultural	1,017,498			17		794,728			17
CRE investment	1,132,951			19		818,061			18
Construction & land development	306,446			5		213,035			5
Residential construction	101,286			2		70,353			1
Residential first mortgage	970,384			16		713,983			15
Residential junior mortgage	176,428			3		131,424			3
Retail & other	56,259			1		50,807			1
Loans	5,984,437			100	%	4,621,836			100	%
Less allowance for credit losses - Loans (“ACL-Loans”)	60,348					49,672
Loans, net	$	5,924,089				$	4,572,164
Allowance for credit losses - Loans to loans	1.01		%			1.07		%

Commercial and industrial loans included less than $1 million and $25 million of PPP loans at September 30, 2022 and December 31, 2021, respectively. Accrued interest on loans totaled $14 million and $11 million at September 30, 2022 and December 31, 2021, respectively, and is included in accrued interest receivable and other assets on the consolidated balance sheets.

Allowance for Credit Losses - Loans:

The majority of the Company’s loans, commitments, and letters of credit have been granted to customers in the Company’s market area. Although the Company has a diversified loan portfolio, the credit risk in the loan portfolio is largely influenced by general economic conditions and trends of the counties and markets in which the debtors operate, and the resulting impact on the operations of borrowers or on the value of underlying collateral, if any.

A roll forward of the allowance for credit losses - loans is summarized as follows.

	Three Months Ended				Nine Months Ended				Year Ended
(in thousands)	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021		December 31, 2021
Beginning balance	$	50,655	$	32,561	$	49,672	$	32,173	$	32,173
ACL on PCD loans acquired	1,709		1,896		1,709		1,896		5,159
Provision for credit losses	8,200		4,000		9,100		4,500		12,500
Charge-offs	(300)		(107)		(442)		(436)		(513)
Recoveries	84		49		309		266		353
Net (charge-offs) recoveries	(216)		(58)		(133)		(170)		(160)
Ending balance	$	60,348	$	38,399	$	60,348	$	38,399	$	49,672

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The following tables present the balance and activity in the ACL-Loans by portfolio segment.

	Nine Months Ended September 30, 2022
(in thousands)	Commercial & industrial			Owner- occupied CRE			Agricultural			CRE investment			Construction & land development			Residential construction			Residential first mortgage			Residential junior mortgage			Retail & other			Total
ACL-Loans *
Beginning balance	$	12,613		$	7,222		$	9,547		$	8,462		$	1,812		$	900		$	6,844		$	1,340		$	932		$	49,672
ACL on PCD loans	1,408			156			—			38			2			—			93			12			—			1,709
Provision	621			1,356			847			3,004			603			446			1,415			517			291			9,100
Charge-offs	(152)			(36)			—			—			—			—			(65)			—			(189)			(442)
Recoveries	103			—			—			169			—			—			7			9			21			309
Net (charge-offs) recoveries	(49)			(36)			—			169			—			—			(58)			9			(168)			(133)
Ending balance	$	14,593		$	8,698		$	10,394		$	11,673		$	2,417		$	1,346		$	8,294		$	1,878		$	1,055		$	60,348
As % of ACL-Loans	24		%	15		%	17		%	19		%	4		%	2		%	14		%	3		%	2		%	100		%

*The PPP loans are fully guaranteed by the SBA; thus, no ACL-Loans has been allocated to these loans.

	Year Ended December 31, 2021
(in thousands)	Commercial & industrial			Owner- occupied CRE			Agricultural			CRE investment			Construction & land development			Residential construction			Residential first mortgage			Residential junior mortgage			Retail & other			Total
ACL-Loans *
Beginning balance	$	11,644		$	5,872		$	1,395		$	5,441		$	984		$	421		$	4,773		$	1,086		$	557		$	32,173
ACL on PCD loans	723			1,045			2,585			415			103			—			272			13			3			5,159
Provision	196			305			5,615			2,608			725			479			1,892			237			443			12,500
Charge-offs	(242)			—			(48)			(4)			—			—			(113)			—			(106)			(513)
Recoveries	292			—			—			2			—			—			20			4			35			353
Net (charge-offs) recoveries	50			—			(48)			(2)			—			—			(93)			4			(71)			(160)
Ending balance	$	12,613		$	7,222		$	9,547		$	8,462		$	1,812		$	900		$	6,844		$	1,340		$	932		$	49,672
As % of ACL-Loans	25		%	14		%	19		%	17		%	4		%	2		%	14		%	3		%	2		%	100		%

The ACL-Loans represents management’s estimate of expected credit losses in the Company’s loan portfolio at the balance sheet date. To assess the appropriateness of the ACL-Loans, management applies an allocation methodology which focuses on evaluation of qualitative and environmental factors, including but not limited to: (i) evaluation of facts and issues related to specific loans; (ii) management’s ongoing review and grading of the loan portfolio; (iii) consideration of historical loan loss and delinquency experience on each portfolio segment; (iv) trends in past due and nonperforming loans; (v) the risk characteristics of the various loan segments; (vi) changes in the size and character of the loan portfolio; (vii) concentrations of loans to specific borrowers or industries; (viii) existing economic conditions; (ix) the fair value of underlying collateral; and (x) other qualitative and quantitative factors which could affect expected credit losses. Assessing these numerous factors involves significant judgment.

Management allocates the ACL-Loans by pools of risk within each loan portfolio segment. The allocation methodology consists of the following components. First, a specific reserve is established for individually evaluated credit-deteriorated loans, which management defines as nonaccrual credit relationships over $250,000, collateral dependent loans, purchased credit deteriorated loans, and other loans with evidence of credit deterioration. The specific reserve in the ACL-Loans for these credit deteriorated loans is equal to the aggregate collateral or discounted cash flow shortfall. Management allocates the ACL-Loans with historical loss rates by loan segment. The loss factors are measured on a quarterly basis and applied to each loan segment based on current loan balances and projected for their expected remaining life. Next, management allocates the ACL-Loans using the qualitative factors mentioned above. Consideration is given to those current qualitative or environmental factors that are likely to cause estimated credit losses as of the evaluation date to differ from the historical loss experience of each loan segment. Lastly, management considers reasonable and supportable forecasts to assess the collectability of future cash flows.

Allowance for Credit Losses-Unfunded Commitments:

In addition to the ACL-Loans, the Company has established an ACL-Unfunded commitments, classified in accrued interest payable and other liabilities on the consolidated balance sheets. This reserve is maintained at a level that management believes is sufficient to absorb losses arising from unfunded loan commitments, and is determined quarterly based on methodology similar to the methodology for determining the ACL-Loans. The reserve for unfunded commitments was $3.0 million at September 30, 2022 and $2.4 million at December 31, 2021.

18

Provision for Credit Losses:

The provision for credit losses is determined by the Company as the amount to be added to the ACL loss accounts for various types of financial instruments including loans, investment securities, and off-balance sheet credit exposures after net charge-offs have been deducted to bring the ACL to a level that, in management’s judgment, is necessary to absorb expected credit losses over the lives of the respective financial instruments. See Note 5 for additional information regarding the ACL related to investment securities. The following table presents the components of the provision for credit losses.

	Three Months Ended				Nine Months Ended				Year Ended
(in thousands)	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021		December 31, 2021
Provision for credit losses on:
Loans	$	8,200	$	4,000	$	9,100	$	4,500	$	12,500
Unfunded Commitments	400		2,000		550		2,000		2,400
Investment securities	—		—		—		—		—
Total	$	8,600	$	6,000	$	9,650	$	6,500	$	14,900

Collateral Dependent Loans:

A loan is considered to be collateral dependent when, based upon management’s assessment, the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. For collateral dependent loans, expected credit losses are based on the estimated fair value of the collateral at the balance sheet date, with consideration for estimated selling costs if satisfaction of the loan depends on the sale of the collateral. The following tables present collateral dependent loans by portfolio segment and collateral type, including those loans with and without a related allowance allocation.

September 30, 2022	Collateral Type
(in thousands)	Real Estate		Other Business Assets		Total		Without an Allowance		With an Allowance		Allowance Allocation
Commercial & industrial	$	—	$	3,032	$	3,032	$	1,443	$	1,589	$	661
Owner-occupied CRE	5,205		—		5,205		3,526		1,679		297
Agricultural	13,974		6,439		20,413		16,900		3,513		205
CRE investment	2,196		—		2,196		404		1,792		242
Construction & land development	685		—		685		685		—		—
Residential construction	—		—		—		—		—		—
Residential first mortgage	91		—		91		91		—		—
Residential junior mortgage	—		—		—		—		—		—
Retail & other	—		—		—		—		—		—
Total loans	$	22,151	$	9,471	$	31,622	$	23,049	$	8,573	$	1,405

December 31, 2021	Collateral Type
(in thousands)	Real Estate		Other Business Assets		Total		Without an Allowance		With an Allowance		Allowance Allocation
Commercial & industrial	$	—	$	2,296	$	2,296	$	1,842	$	454	$	258
Owner-occupied CRE	3,537		—		3,537		1,315		2,222		552
Agricultural	19,637		8,518		28,155		25,310		2,845		841
CRE investment	3,000		—		3,000		1,684		1,316		407
Construction & land development	1,038		—		1,038		655		383		211
Residential construction	—		—		—		—		—		—
Residential first mortgage	473		—		473		473		—		—
Residential junior mortgage	—		—		—		—		—		—
Retail & other	—		—		—		—		—		—
Total loans	$	27,685	$	10,814	$	38,499	$	31,279	$	7,220	$	2,269

19

Past Due and Nonaccrual Loans:

The following tables present past due loans by portfolio segment.

	September 30, 2022
(in thousands)	30-89 Days Past Due (accruing)			90 Days & Over or nonaccrual			Current			Total
Commercial & industrial	$	954		$	3,052		$	1,264,246		$	1,268,252
Owner-occupied CRE	513			5,806			948,614			954,933
Agricultural	—			20,646			996,852			1,017,498
CRE investment	27			3,343			1,129,581			1,132,951
Construction & land development	—			794			305,652			306,446
Residential construction	557			—			100,729			101,286
Residential first mortgage	1,621			4,309			964,454			970,384
Residential junior mortgage	249			277			175,902			176,428
Retail & other	138			99			56,022			56,259
Total loans	$	4,059		$	38,326		$	5,942,052		$	5,984,437
Percent of total loans	0.1		%	0.6		%	99.3		%	100.0		%

	December 31, 2021
(in thousands)	30-89 Days Past Due (accruing)			90 Days & Over or nonaccrual			Current			Total
Commercial & industrial	$	94		$	1,908		$	1,040,254		$	1,042,256
Owner-occupied CRE	—			4,220			782,969			787,189
Agricultural	108			28,367			766,253			794,728
CRE investment	114			4,119			813,828			818,061
Construction & land development	—			1,071			211,964			213,035
Residential construction	246			—			70,107			70,353
Residential first mortgage	2,592			4,132			707,259			713,983
Residential junior mortgage	23			243			131,158			131,424
Retail & other	115			94			50,598			50,807
Total loans	$	3,292		$	44,154		$	4,574,390		$	4,621,836
Percent of total loans	0.1		%	0.9		%	99.0		%	100.0		%

The following table presents nonaccrual loans by portfolio segment.

	September 30, 2022					December 31, 2021
(in thousands)	Nonaccrual Loans			% of Total		Nonaccrual Loans			% of Total
Commercial & industrial	$	3,052		8	%	$	1,908		4	%
Owner-occupied CRE	5,806			15		4,220			10
Agricultural	20,646			54		28,367			64
CRE investment	3,343			9		4,119			9
Construction & land development	794			2		1,071			3
Residential construction	—			—		—			—
Residential first mortgage	4,309			11		4,132			9
Residential junior mortgage	277			1		243			1
Retail & other	99			—		94			—
Nonaccrual loans	$	38,326		100	%	$	44,154		100	%
Percent of total loans	0.6		%			0.9		%

20

Credit Quality Information:

The following tables present total loans by risk categories and year of origination. Loans acquired from Charter, Mackinac and County have been included in the September 30, 2022 and December 31, 2021 tables based upon the actual origination date.

September 30, 2022	Amortized Cost Basis by Origination Year
(in thousands)	2022		2021		2020		2019		2018		Prior		Revolving		Revolving to Term		TOTAL
Commercial & industrial
Grades 1-4	$	254,713	$	246,195	$	108,418	$	76,355	$	52,099	$	83,341	$	349,324	$	—	$	1,170,445
Grade 5	7,187		7,423		11,052		2,084		2,734		4,344		18,807		—		53,631
Grade 6	158		1,649		675		638		453		11,972		14,718		—		30,263
Grade 7	552		352		3,384		2,666		802		1,149		5,008		—		13,913
Total	$	262,610	$	255,619	$	123,529	$	81,743	$	56,088	$	100,806	$	387,857	$	—	$	1,268,252
Owner-occupied CRE
Grades 1-4	$	128,054	$	189,922	$	111,622	$	104,840	$	93,619	$	269,617	$	7,952	$	—	$	905,626
Grade 5	2,868		4,750		2,824		2,826		3,875		14,325		172		—		31,640
Grade 6	—		—		—		2,388		—		887		—		—		3,275
Grade 7	440		414		6,244		377		85		6,832		—		—		14,392
Total	$	131,362	$	195,086	$	120,690	$	110,431	$	97,579	$	291,661	$	8,124	$	—	$	954,933
Agricultural
Grades 1-4	$	238,387	$	154,364	$	93,529	$	26,185	$	20,967	$	135,426	$	195,784	$	—	$	864,642
Grade 5	12,109		15,525		2,823		2,028		1,504		42,561		23,090		—		99,640
Grade 6	49		1,491		31		33		—		5,322		425		—		7,351
Grade 7	7,072		2,651		863		2,024		3,655		20,388		9,212		—		45,865
Total	$	257,617	$	174,031	$	97,246	$	30,270	$	26,126	$	203,697	$	228,511	$	—	$	1,017,498
CRE investment
Grades 1-4	$	167,931	$	228,709	$	195,020	$	141,749	$	79,790	$	261,027	$	13,890	$	—	$	1,088,116
Grade 5	784		1,664		5,252		3,131		983		24,997		—		—		36,811
Grade 6	—		—		—		1,183		2,029		1,078		206		—		4,496
Grade 7	—		—		—		73		249		2,991		215		—		3,528
Total	$	168,715	$	230,373	$	200,272	$	146,136	$	83,051	$	290,093	$	14,311	$	—	$	1,132,951
Construction & land development
Grades 1-4	$	82,695	$	139,561	$	15,958	$	9,979	$	27,553	$	14,936	$	14,361	$	—	$	305,043
Grade 5	40		—		—		513		—		22		—		—		575
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	34		—		—		—		—		794		—		—		828
Total	$	82,769	$	139,561	$	15,958	$	10,492	$	27,553	$	15,752	$	14,361	$	—	$	306,446
Residential construction
Grades 1-4	$	61,266	$	32,309	$	1,490	$	125	$	338	$	664	$	5,094	$	—	$	101,286
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		—		—		—		—		—
Total	$	61,266	$	32,309	$	1,490	$	125	$	338	$	664	$	5,094	$	—	$	101,286
Residential first mortgage
Grades 1-4	$	261,535	$	266,465	$	151,436	$	73,915	$	32,871	$	167,038	$	2,595	$	3	$	955,858
Grade 5	928		1,349		1,006		2,147		2,295		418		—		—		8,143
Grade 6	—		—		—		717		—		—		—		—		717
Grade 7	—		332		211		410		225		4,488		—		—		5,666
Total	$	262,463	$	268,146	$	152,653	$	77,189	$	35,391	$	171,944	$	2,595	$	3	$	970,384
Residential junior mortgage
Grades 1-4	$	7,864	$	4,875	$	5,314	$	3,227	$	1,745	$	3,439	$	144,053	$	5,293	$	175,810
Grade 5	—		—		—		—		—		144		—		—		144
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		209		—		27		—		86		152		—		474
Total	$	7,864	$	5,084	$	5,314	$	3,254	$	1,745	$	3,669	$	144,205	$	5,293	$	176,428
Retail & other
Grades 1-4	$	11,363	$	9,873	$	4,751	$	3,677	$	1,220	$	24,608	$	667	$	—	$	56,159
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		16		2		30		52		—		—		100
Total	$	11,363	$	9,873	$	4,767	$	3,679	$	1,250	$	24,660	$	667	$	—	$	56,259
Total loans	$	1,246,029	$	1,310,082	$	721,919	$	463,319	$	329,121	$	1,102,946	$	805,725	$	5,296	$	5,984,437

21

December 31, 2021	Amortized Cost Basis by Origination Year
(in thousands)	2021		2020		2019		2018		2017		Prior		Revolving		Revolving to Term		TOTAL
Commercial & industrial
Grades 1-4	$	282,369	$	146,131	$	99,702	$	69,478	$	50,557	$	71,247	$	288,115	$	—	$	1,007,599
Grade 5	1,685		1,905		4,369		5,809		4,860		2,097		8,408		—		29,133
Grade 6	598		54		16		687		67		91		391		—		1,904
Grade 7	—		440		692		337		976		743		432		—		3,620
Total	$	284,652	$	148,530	$	104,779	$	76,311	$	56,460	$	74,178	$	297,346	$	—	$	1,042,256
Owner-occupied CRE
Grades 1-4	$	154,578	$	94,300	$	105,226	$	92,128	$	75,583	$	202,816	$	6,945	$	—	$	731,576
Grade 5	7,753		3,019		6,529		2,543		2,515		13,905		656		—		36,920
Grade 6	—		—		1,642		—		20		805		—		—		2,467
Grade 7	—		3,124		1,914		—		3,526		6,672		990		—		16,226
Total	$	162,331	$	100,443	$	115,311	$	94,671	$	81,644	$	224,198	$	8,591	$	—	$	787,189
Agricultural
Grades 1-4	$	128,404	$	87,844	$	28,416	$	22,887	$	36,298	$	86,104	$	235,743	$	—	$	625,696
Grade 5	14,796		4,183		2,391		915		3,912		48,373		26,778		—		101,348
Grade 6	38		38		36		—		86		1,049		85		—		1,332
Grade 7	3,284		3,971		3,490		4,201		7,215		31,672		12,519		—		66,352
Total	$	146,522	$	96,036	$	34,333	$	28,003	$	47,511	$	167,198	$	275,125	$	—	$	794,728
CRE investment
Grades 1-4	$	192,274	$	139,127	$	136,306	$	56,148	$	65,026	$	162,991	$	11,289	$	—	$	763,161
Grade 5	11,081		3,001		6,497		3,945		6,726		17,527		—		—		48,777
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		456		141		1,352		3,943		231		—		6,123
Total	$	203,355	$	142,128	$	143,259	$	60,234	$	73,104	$	184,461	$	11,520	$	—	$	818,061
Construction & land development
Grades 1-4	$	81,891	$	72,415	$	12,547	$	19,511	$	1,184	$	11,274	$	10,943	$	—	$	209,765
Grade 5	640		—		521		919		—		119		—		—		2,199
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		17		1,054		—		—		1,071
Total	$	82,531	$	72,415	$	13,068	$	20,430	$	1,201	$	12,447	$	10,943	$	—	$	213,035
Residential construction
Grades 1-4	$	58,352	$	9,998	$	155	$	344	$	1,072	$	380	$	—	$	—	$	70,301
Grade 5	—		—		52		—		—		—		—		—		52
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		—		—		—		—		—
Total	$	58,352	$	9,998	$	207	$	344	$	1,072	$	380	$	—	$	—	$	70,353
Residential first mortgage
Grades 1-4	$	256,082	$	152,932	$	168,705	$	22,568	$	20,147	$	82,479	$	1,840	$	4	$	704,757
Grade 5	713		529		3,094		—		—		1,508		—		—		5,844
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		560		225		73		2,524		—		—		3,382
Total	$	256,795	$	153,461	$	172,359	$	22,793	$	20,220	$	86,511	$	1,840	$	4	$	713,983
Residential junior mortgage
Grades 1-4	$	3,194	$	3,139	$	3,021	$	1,501	$	512	$	1,969	$	115,817	$	1,426	$	130,579
Grade 5	—		—		29		—		—		—		439		—		468
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		172		—		23		44		138		—		377
Total	$	3,194	$	3,139	$	3,222	$	1,501	$	535	$	2,013	$	116,394	$	1,426	$	131,424
Retail & other
Grades 1-4	$	13,676	$	6,886	$	5,826	$	2,053	$	1,882	$	20,102	$	275	$	—	$	50,700
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		24		2		19		—		62		—		—		107
Total	$	13,676	$	6,910	$	5,828	$	2,072	$	1,882	$	20,164	$	275	$	—	$	50,807
Total loans	$	1,211,408	$	733,060	$	592,366	$	306,359	$	283,629	$	771,550	$	722,034	$	1,430	$	4,621,836

22

The following tables present total loans by risk categories.

	September 30, 2022
(in thousands)	Grades 1- 4			Grade 5			Grade 6			Grade 7			Total
Commercial & industrial	$	1,170,445		$	53,631		$	30,263		$	13,913		$	1,268,252
Owner-occupied CRE	905,626			31,640			3,275			14,392			954,933
Agricultural	864,642			99,640			7,351			45,865			1,017,498
CRE investment	1,088,116			36,811			4,496			3,528			1,132,951
Construction & land development	305,043			575			—			828			306,446
Residential construction	101,286			—			—			—			101,286
Residential first mortgage	955,858			8,143			717			5,666			970,384
Residential junior mortgage	175,810			144			—			474			176,428
Retail & other	56,159			—			—			100			56,259
Total loans	$	5,622,985		$	230,584		$	46,102		$	84,766		$	5,984,437
Percent of total	93.9		%	3.9		%	0.8		%	1.4		%	100.0		%

	December 31, 2021
(in thousands)	Grades 1- 4			Grade 5			Grade 6			Grade 7			Total
Commercial & industrial	$	1,007,599		$	29,133		$	1,904		$	3,620		$	1,042,256
Owner-occupied CRE	731,576			36,920			2,467			16,226			787,189
Agricultural	625,696			101,348			1,332			66,352			794,728
CRE investment	763,161			48,777			—			6,123			818,061
Construction & land development	209,765			2,199			—			1,071			213,035
Residential construction	70,301			52			—			—			70,353
Residential first mortgage	704,757			5,844			—			3,382			713,983
Residential junior mortgage	130,579			468			—			377			131,424
Retail & other	50,700			—			—			107			50,807
Total loans	$	4,294,134		$	224,741		$	5,703		$	97,258		$	4,621,836
Percent of total	92.9		%	4.9		%	0.1		%	2.1		%	100.0		%

An internal loan review function rates loans using a grading system based on different risk categories. Loans with a Substandard grade are considered to have a greater risk of loss and may be assigned allocations for loss based on specific review of the weaknesses observed in the individual credits. Such loans are monitored by the loan review function to help ensure early identification of any deterioration. A description of the loan risk categories used by the Company follows.

Grades 1-4, Pass: Credits exhibit adequate cash flows, appropriate management and financial ratios within industry norms and/or are supported by sufficient collateral. Some credits in these rating categories may require a need for monitoring but elements of concern are not severe enough to warrant an elevated rating.

Grade 5, Watch: Credits with this rating are adequately secured and performing but are being monitored due to the presence of various short-term weaknesses which may include unexpected, short-term adverse financial performance, managerial problems, potential impact of a decline in the entire industry or local economy and delinquency issues. Loans to individuals or loans supported by guarantors with marginal net worth or collateral may be included in this rating category.

Grade 6, Special Mention: Credits with this rating have potential weaknesses that, without the Company’s attention and correction may result in deterioration of repayment prospects. These assets are considered Criticized Assets. Potential weaknesses may include adverse financial trends for the borrower or industry, repeated lack of compliance with Company requests, increasing debt to net worth, serious management conditions and decreasing cash flow.

Grade 7, Substandard: Assets with this rating are characterized by the distinct possibility the Company will sustain some loss if deficiencies are not corrected. All foreclosures, liquidations, and nonaccrual loans are considered to be categorized in this rating, regardless of collateral sufficiency.

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Troubled Debt Restructurings:

Loans are considered troubled debt restructurings if concessions have been granted to borrowers who are experiencing financial difficulties. The following table presents the loan composition of nonaccrual and performing TDRs.

	September 30, 2022						December 31, 2021
(in thousands)	Performing		Nonaccrual		Total		Performing		Nonaccrual		Total
Commercial & industrial	$	—	$	223	$	223	$	—	$	197	$	197
Owner-occupied CRE	—		2,639		2,639		3,466		2,888		6,354
Agricultural	—		14,181		14,181		—		16,835		16,835
CRE investment	—		299		299		918		—		918
Construction & land development	—		75		75		—		308		308
Residential first mortgage	—		13		13		913		15		928
Residential junior mortgage	—		—		—		146		—		146
Total	$	—	$	17,430	$	17,430	$	5,443	$	20,243	$	25,686

The following table presents the number of loans modified in a TDR, pre-modification loan balance, and post-modification loan balance by loan composition.

	September 30, 2022					December 31, 2021
($ in thousands)	Number of Loans	Pre-Modification Balance		Current Balance		Number of Loans	Pre-Modification Balance		Current Balance
Commercial & industrial	4	$	240	$	223	2	$	200	$	197
Owner-occupied CRE	3	5,138		2,639		6	6,913		6,354
Agricultural	26	16,237		14,181		31	17,228		16,835
CRE investment	1	301		299		1	919		918
Construction & land development	1	533		75		1	533		308
Residential first mortgage	1	17		13		2	931		928
Residential junior mortgage	—	—		—		1	166		146
Total	36	$	22,466	$	17,430	44	$	26,890	$	25,686

TDR concessions may include payment schedule modifications, interest rate concessions, maturity date extensions, bankruptcies, or some combination of these concessions. There were no loans which were classified as troubled debt restructurings during the previous twelve months that subsequently defaulted during 2021 or through September 30, 2022. As of September 30, 2022, there were no commitments to lend additional funds to debtors whose terms have been modified in troubled debt restructurings.

Note 7 – Goodwill and Other Intangibles and Servicing Rights

Management periodically reviews the carrying value of its intangible assets to determine if any impairment has occurred, in which case an impairment charge would be recorded as an expense in the period of impairment, or whether changes in circumstances have occurred that would require a revision to the remaining useful life that would affect expense prospectively. In making such determination, management evaluates whether there are any adverse qualitative factors indicating that an impairment may exist, as well as the performance, on an undiscounted basis, of the underlying operations or assets which give rise to the intangible. Management regularly monitors economic factors for potential impairment indications on the value of our franchise, stability of deposits, and the wealth client base, underlying our goodwill, core deposit intangible, and customer list intangibles, and determined no impairments were indicated. A summary of goodwill and other intangibles was as follows.

(in thousands)	September 30, 2022		December 31, 2021
Goodwill	$	369,849	$	317,189
Core deposit intangibles	34,791		19,445
Customer list intangibles	2,477		2,858
Other intangibles	37,268		22,303
Goodwill and other intangibles, net	$	407,117	$	339,492

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Goodwill: A summary of goodwill was as follows. During 2022, goodwill increased due to the Charter acquisition, while during 2021, goodwill increased due to the acquisitions of Mackinac and County. See Note 2 for additional information on the Company’s acquisitions.

	Nine Months Ended		Year Ended
(in thousands)	September 30, 2022		December 31, 2021
Goodwill:
Goodwill at beginning of year	$	317,189	$	163,151
Acquisitions	52,660		154,038
Goodwill at end of period	$	369,849	$	317,189

Other intangible assets: Other intangible assets, consisting of core deposit intangibles and customer list intangibles, are amortized over their estimated finite lives. A summary of other intangible assets was as follows. During 2022, core deposit intangibles increased due to the Charter acquisition, while during 2021, core deposit intangibles increased due to the acquisitions of Mackinac and County. See Note 2 for additional information on the Company’s acquisitions.

	Nine Months Ended		Year Ended
(in thousands)	September 30, 2022		December 31, 2021
Core deposit intangibles:
Gross carrying amount	$	60,724	$	41,360
Accumulated amortization	(25,933)		(21,915)
Net book value	$	34,791	$	19,445
Additions during the period	$	19,364	$	13,595
Amortization during the period	$	4,018	$	2,987
Customer list intangibles:
Gross carrying amount	$	5,523	$	5,523
Accumulated amortization	(3,046)		(2,665)
Net book value	$	2,477	$	2,858
Amortization during the period	$	381	$	507

Mortgage servicing rights (“MSR”): Mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income, and assessed for impairment at each reporting date, with the amortization recorded in mortgage income, net, in the consolidated statements of income. Mortgage servicing rights are carried at the lower of the initial capitalized amount, net of accumulated amortization, or estimated fair value, and are included in other assets in the consolidated balance sheets. A summary of the changes in the mortgage servicing rights asset was as follows.

	Nine Months Ended			Year Ended
(in thousands)	September 30, 2022			December 31, 2021
Mortgage servicing rights asset:
MSR asset at beginning of year	$	13,636		$	10,230
Capitalized MSR	2,127			4,329
MSR asset acquired	—			1,322
Amortization during the period	(2,145)			(2,245)
MSR asset at end of period	$	13,618		$	13,636
Valuation allowance at beginning of year	$	(1,200)		$	(1,000)
Additions	—			(500)
Reversals	700			300
Valuation allowance at end of period	$	(500)		$	(1,200)
MSR asset, net	$	13,118		$	12,436
Fair value of MSR asset at end of period	$	16,740		$	15,599
Residential mortgage loans serviced for others	$	1,649,187		$	1,583,577
Net book value of MSR asset to loans serviced for others	0.80		%	0.79		%

The Company periodically evaluates its mortgage servicing rights asset for impairment. At each reporting date, impairment is assessed based on estimated fair value using estimated prepayment speeds of the underlying mortgage loans serviced and stratification based on the risk characteristics of the underlying loans (predominantly loan type and note interest rate). See Note 9 for additional information on the fair value of the MSR asset.

Loan servicing rights (“LSR”): The Company acquired an LSR asset in connection with its acquisition of County on December 3, 2021 (see Note 2 for additional information on the County acquisition). The LSR asset was $13 million at September 30, 2022, and related to approximately $553 million of unpaid principal balances of loans serviced for others. The LSR asset will

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be amortized on an accelerated basis over the estimated remaining loan service period as the Company does not expect to add new loans to this servicing portfolio. See Note 9 for additional information on the fair value of the LSR asset.

The following table shows the estimated future amortization expense for amortizing intangible assets and the servicing assets. The projections are based on existing asset balances, the current interest rate environment and prepayment speeds as of September 30, 2022. The actual amortization expense the Company recognizes in any given period may be significantly different depending upon acquisition or sale activities, changes in interest rates, prepayment speeds, market conditions, regulatory requirements and events or circumstances that indicate the carrying amount of an asset may not be recoverable.

(in thousands)	Core deposit intangibles		Customer list intangibles		MSR asset		LSR asset
Year ending December 31,
2022 (remaining three months)	$	2,091	$	126	$	386	$	2,004
2023	7,589		483		2,735		6,345
2024	6,298		449		2,635		3,673
2025	5,161		449		1,884		1,020
2026	3,983		249		1,394		—
2027	3,218		166		1,394		—
Thereafter	6,451		555		3,190		—
Total	$	34,791	$	2,477	$	13,618	$	13,042

Note 8 – Short and Long-Term Borrowings

Short-Term Borrowings:

Short-term borrowings include any borrowing with an original maturity of one year or less. At September 30, 2022, short-term borrowings included $280 million of short-term FHLB advances, comprised of $80 million due in October 2022 at a weighted average rate of 2.70% and $200 million due in September 2023 at a weighted average rate of 4.30%. The Company did not have any outstanding short-term borrowings at December 31, 2021.

Long-Term Borrowings:

Long-term borrowings include any borrowing with an original maturity greater than one year. The components of long-term borrowings were as follows.

(in thousands)	September 30, 2022		December 31, 2021
FHLB advances	$	33,000	$	25,000
Junior subordinated debentures	39,512		38,885
Subordinated notes	152,724		153,030
Total long-term borrowings	$	225,236	$	216,915

FHLB Advances: The Federal Home Loan Bank (“FHLB”) advances bear fixed rates, require interest-only monthly payments, and have maturity dates through February 2030. The weighted average rate of the FHLB advances was 1.09% at September 30, 2022 and 0.59% at December 31, 2021.

Junior Subordinated Debentures: Each of the junior subordinated debentures was issued to an underlying statutory trust (the “statutory trusts”), which issued trust preferred securities and common securities and used the proceeds from the issuance of the common and the trust preferred securities to purchase the junior subordinated debentures of the Company. The debentures represent the sole asset of the statutory trusts. All of the common securities of the statutory trusts are owned by the Company. The statutory trusts are not included in the consolidated financial statements. The net effect of all the documents entered into with respect to the trust preferred securities is that the Company, through payments on its debentures, is liable for the distributions and other payments required on the trust preferred securities. Interest on all debentures is current. Any applicable discounts (initially recorded to carry an acquired debenture at its then estimated fair value) are being accreted to interest expense over the remaining life of the debenture. All the junior subordinated debentures are currently callable and may be redeemed in part or in full, at par, plus any accrued but unpaid interest. At September 30, 2022 and December 31, 2021, approximately $38 million and $37 million, respectively, of trust preferred securities qualify as Tier 1 capital.

Subordinated Notes (the “Notes”): In July 2021, the Company completed the private placement of $100 million in fixed-to-floating rate subordinated notes due in 2031, with a fixed annual rate of 3.125% for the first five years, and will reset quarterly thereafter to the then current three-month Secured Overnight Financing Rate (“SOFR”) plus 237.5 basis points. The Notes due in 2031 are redeemable beginning July 15, 2026 and quarterly thereafter on any interest payment date.

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In December 2021, Nicolet assumed two subordinated note issuances at a premium as the result of the County acquisition. One issuance was $30 million in fixed-to-floating rate subordinated notes due in 2028, with a fixed annual interest rate of 5.875% for the first five years, and will reset quarterly thereafter to the then current three-month LIBOR plus 2.88% The second issuance was $22 million in fixed-to-floating rate subordinated notes due in 2030, with a fixed annual interest rate of 7.00% for the first five years, and will reset quarterly thereafter to the then current SOFR plus 687.5 basis points. The Notes due in 2028 are redeemable beginning June 1, 2023, and quarterly thereafter on any interest payment date, while the Notes due in 2030 are redeemable beginning June 30, 2025, and quarterly thereafter on any interest payment date. All Notes qualify as Tier 2 capital for regulatory purposes.

The following table shows the breakdown of junior subordinated debentures and subordinated notes.

		As of September 30, 2022								As of December 31, 2021
(in thousands)	Maturity Date	Interest  Rate		Par		Unamortized Premium /(Discount) / Debt Issue Costs (1)		Carrying Value		Interest  Rate		Carrying Value
Junior Subordinated Debentures:
Mid-Wisconsin Statutory Trust I (2)	12/15/2035	4.72	%	$	10,310	$	(2,625)	$	7,685	1.63	%	$	7,537
Baylake Capital Trust II (3)	9/30/2036	5.02	%	16,598		(3,233)		13,365		1.57	%	13,187
First Menasha Statutory Trust (4)	3/17/2034	6.32	%	5,155		(498)		4,657		3.01	%	4,624
County Bancorp Statutory Trust II (5)	9/15/2035	4.82	%	6,186		(948)		5,238		1.73	%	5,061
County Bancorp Statutory Trust III (6)	6/15/2036	4.98	%	6,186		(1,006)		5,180		1.89	%	5,121
Fox River Valley Capital Trust (7)	5/30/2033	6.40	%	3,610		(223)		3,387		6.40	%	3,355
Total				$	48,045	$	(8,533)	$	39,512			$	38,885
Subordinated Notes:
Subordinated Notes due 2031	7/15/2031	3.13	%	$	100,000	$	(785)	$	99,215	3.13	%	$	99,057
County Subordinated Notes due 2028	6/1/2028	5.88	%	30,000		189		30,189		5.88	%	30,402
County Subordinated Notes due 2030	6/30/2030	7.00	%	22,400		920		23,320		7.00	%	23,571
Total				$	152,400	$	324	$	152,724			$	153,030

(1) Represents the remaining unamortized premium or discount on debt issuances assumed in acquisitions, and represents the unamortized debt issue costs for the debt issued directly by Nicolet.

(2) The debentures, assumed in April 2013 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.43%, adjusted quarterly.

(3) The debentures, assumed in April 2016 as a result of an acquisition, have a floating rate of three-month LIBOR plus 1.35%, adjusted quarterly.

(4) The debentures, assumed in April 2017 as the result of an acquisition, have a floating rate of three-month LIBOR plus 2.79%, adjusted quarterly.

(5) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.53%, adjusted quarterly.

(6) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.69%, adjusted quarterly.

(7) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of 5-year LIBOR plus 3.40%, which resets every five years.

Note 9 – Fair Value Measurements

Fair value represents the estimated price at which an orderly transaction to sell an asset or transfer a liability would take place between market participants at the measurement date under current market conditions (i.e., an exit price concept), and is a market-based measurement versus an entity-specific measurement. The Company records and/or discloses certain financial instruments on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the assumptions used to determine fair value. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from independent sources. Unobservable inputs are inputs that reflect assumptions of the reporting entity about how market participants would price the asset or liability based on the best information available under the circumstances. The three fair value levels are:

•Level 1 – quoted market prices in active markets for identical assets or liabilities that a company has the ability to access at the measurement date

•Level 2 – inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly

•Level 3 – significant unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity

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In instances where the fair value measurement is based on inputs from different levels, the level within which the entire fair value measurement will be categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. This assessment of the significance of an input requires management judgment.

Recurring basis fair value measurements:

The following table presents the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented.

(in thousands)			Fair Value Measurements Using
Measured at Fair Value on a Recurring Basis:	Total		Level 1		Level 2		Level 3
September 30, 2022
U.S. government agency securities	$	184,763	$	—	$	184,763	$	—
State, county and municipals	411,864		—		410,021		1,843
Mortgage-backed securities	213,435		—		212,453		982
Corporate debt securities	139,535		—		134,214		5,321
Securities AFS	$	949,597	$	—	$	941,451	$	8,146
Other investments (equity securities)	$	4,482	$	4,482	$	—	$	—
Derivative assets	—		—		—		—
Derivative liabilities	—		—		—		—
December 31, 2021
U.S. government agency securities	$	191,277	$	—	$	191,277	$	—
State, county and municipals	312,737		—		310,316		2,421
Mortgage-backed securities	271,262		—		270,260		1,002
Corporate debt securities	146,385		—		141,743		4,642
Securities AFS	$	921,661	$	—	$	913,596	$	8,065
Other investments (equity securities)	$	5,660	$	5,660	$	—	$	—
Derivative assets	1,064		—		1,064		—
Derivative liabilities	1,064		—		1,064		—

The following is a description of the valuation methodologies used by the Company for the assets and liabilities measured at fair value on a recurring basis, noted in the tables above. Where quoted market prices on securities exchanges are available, the investments are classified as Level 1. Level 1 investments primarily include exchange-traded equity securities. If quoted market prices are not available, fair value is generally determined using prices obtained from independent pricing vendors who use pricing models (with typical inputs including benchmark yields, reported trades for similar securities, issuer spreads or relationship to other benchmark quoted securities), or discounted cash flows, and are classified as Level 2. Examples of these investments include U.S. government agency securities, mortgage-backed securities, obligations of state, county and municipals, and certain corporate debt securities. Finally, in certain cases where there is limited activity or less transparency around inputs to the estimated fair value, investments are classified within Level 3 of the hierarchy. Examples of these include private corporate debt securities, which are primarily trust preferred security investments, as well as certain municipal bonds and mortgage-backed securities. At September 30, 2022 and December 31, 2021, it was determined that carrying value was the best approximation of fair value for these Level 3 securities, based primarily on the internal analysis on these securities. The fair value of the derivative assets and liabilities is determined using a discounted cash flow analysis of the expected cash flows of each derivative, which considers the contractual terms of the underlying derivative financial instrument and observable market-based inputs, such as interest rate curves.

The following table presents the changes in Level 3 securities AFS measured at fair value on a recurring basis.

	Nine Months Ended		Year Ended
Level 3 Fair Value Measurements:	September 30, 2022		December 31, 2021
Balance at beginning of year	$	8,065	$	3,130
Acquired balance	750		4,935
Maturities / Paydowns	(442)		—
Unrealized gain / (loss)	(227)		—
Balance at end of period	$	8,146	$	8,065

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Nonrecurring basis fair value measurements:

The following table presents the Company’s assets measured at fair value on a nonrecurring basis, aggregated by level in the fair value hierarchy within which those measurements fall.

(in thousands)			Fair Value Measurements Using
Measured at Fair Value on a Nonrecurring Basis:	Total		Level 1		Level 2		Level 3
September 30, 2022
Collateral dependent loans	$	30,217	$	—	$	—	$	30,217
Other real estate owned (“OREO”)	2,134		—		—		2,134
MSR asset	13,118		—		—		13,118
LSR asset	13,042		—		—		13,042
December 31, 2021
Collateral dependent loans	$	36,230	$	—	$	—	$	36,230
OREO	11,955		—		—		11,955
MSR asset	12,436		—		—		12,436
LSR asset	20,055		—		—		20,055

The following is a description of the valuation methodologies used by the Company for the items noted in the table above. For collateral dependent loans, the estimated fair value is based upon the present value of expected future cash flows discounted at the loan’s effective interest rate, the estimated fair value of the underlying collateral with consideration for estimated selling costs if satisfaction of the loan depends on the sale of the collateral, or the estimated liquidity of the note. For OREO, the fair value is based upon the estimated fair value of the underlying collateral adjusted for the expected costs to sell. To estimate the fair value of the MSR asset, the underlying serviced loan pools are stratified by interest rate tranche and term of the loan, and a valuation model is used to calculate the present value of the expected future cash flows for each stratum. The servicing valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as costs to service, a discount rate, ancillary income, default rates and losses, and prepayment speeds. Although some of these assumptions are based on observable market data, other assumptions are based on unobservable estimates of what market participants would use to measure fair value.

Financial instruments:

The carrying amounts and estimated fair values of the Company’s financial instruments are shown below.

September 30, 2022
(in thousands)	Carrying Amount		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	438,282	$	438,282	$	438,282	$	—	$	—
Certificates of deposit in other banks	13,510		13,409		—		13,409		—
Securities AFS	949,597		949,597		—		941,451		8,146
Securities HTM	686,424		627,639		—		627,639		—
Other investments, including equity securities	79,279		79,279		4,482		58,910		15,887
Loans held for sale	3,709		3,770		—		3,770		—
Loans, net	5,924,089		5,638,877		—		—		5,638,877
MSR asset	13,118		16,740		—		—		16,740
LSR asset	13,042		13,042		—		—		13,042
Accrued interest receivable	21,542		21,542		21,542		—		—
Financial liabilities:
Deposits	$	7,395,902	$	7,390,443	$	—	$	—	$	7,390,443
Short-term borrowings	280,000		280,000		—		280,000		—
Long-term borrowings	225,236		220,616		—		33,104		187,512
Accrued interest payable	3,533		3,533		3,533		—		—

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December 31, 2021
(in thousands)	Carrying Amount		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	595,292	$	595,292	$	595,292	$	—	$	—
Certificates of deposit in other banks	21,920		22,236		—		22,236		—
Securities AFS	921,661		921,661		—		913,596		8,065
Securities HTM	651,803		648,394		—		648,394		—
Other investments, including equity securities	44,008		44,008		5,660		32,110		6,238
Loans held for sale	6,447		6,616		—		6,616		—
Loans, net	4,572,164		4,606,851		—		—		4,606,851
MSR asset	12,436		15,599		—		—		15,599
LSR asset	20,055		20,055		—		—		20,055
Accrued interest receivable	15,277		15,277		15,277		—		—
Financial liabilities:
Deposits	$	6,465,916	$	6,463,064	$	—	$	—	$	6,463,064
Long-term borrowings	216,915		216,092		—		25,097		190,995
Accrued interest payable	3,078		3,078		3,078		—		—

The valuation methodologies for the financial instruments disclosed in the above table are described in Note 18, Fair Value Measurements, in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Note 10 – Other Assets and Other Liabilities Held for Sale

On September 7, 2021, Nicolet entered into a Purchase and Assumption Agreement (the “Birmingham Agreement”) with Bank of Ann Arbor to sell Nicolet’s Birmingham, Michigan branch, including legacy mBank’s asset-based lending team (the “Birmingham Sale”). Pursuant to the terms of the Birmingham Agreement, Bank of Ann Arbor agreed to assume certain deposit liabilities and to acquire certain loans, as well as cash, personal property and other fixed assets associated with the Birmingham branch. The combined loan and deposit balances of the Birmingham branch (excluding certain loans and deposits not subject to the Birmingham Agreement) were approximately $199 million and $51 million, respectively, as of December 31, 2021. The Birmingham Sale closed on January 21, 2022.

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

Nicolet Bankshares, Inc. (the “Company” or “Nicolet”) is a bank holding company headquartered in Green Bay, Wisconsin. Nicolet provides a diversified range of traditional banking and wealth management services to individuals and businesses in its market area and through the branch offices of its banking subsidiary, Nicolet National Bank (the “Bank”), in Wisconsin, Michigan, and Minnesota. In this Quarterly Report on Form 10-Q, unless the context indicates otherwise, all references to “we,” “us” and “our” refer to the Company.

Forward-Looking Statements

Statements made in this document and in any documents that are incorporated by reference which are not purely historical are forward-looking statements, as defined in the Private Securities Litigation Reform Act of 1995, including any statements regarding descriptions of management’s plans, objectives, or goals for future operations, products or services, and forecasts of its revenues, earnings, or other measures of performance. Forward-looking statements are based on current management expectations and, by their nature, are subject to risks and uncertainties. These statements are neither statements of historical fact nor assurance of future performance and generally may be identified by the use of words such as “believe,” “expect,” “anticipate,” “plan,” “estimate,” “should,” “will,” “intend,” or similar expressions. Forward-looking statements include discussions of strategy, financial projections, guidance and estimates (including their underlying assumptions), statements regarding plans, objectives, expectations or consequences of various transactions or events, and statements about our future performance, operations, products and services, and should be viewed with caution. Shareholders should note that many factors, some of which are discussed elsewhere in this document, could affect the future financial results of Nicolet and could cause those results to differ materially from those implied or anticipated by the statements. Except as required by law, we expressly disclaim any obligations to publicly update any forward-looking statements whether written or oral, that may be made from time to time, whether as a result of new information, future developments or otherwise. Important factors, many of which are beyond Nicolet’s control, that could cause our actual results and financial condition to differ materially from those indicated in the forward-looking statements, in addition to those described in detail under Item 1A, “Risk Factors” of Nicolet’s 2021 Annual Report on Form 10-K include, but are not necessarily limited to the following:

•operating, legal and regulatory risks, including the effects of legislative or regulatory developments affecting the financial industry generally or Nicolet specifically;

•economic, market, political and competitive forces affecting Nicolet’s banking and wealth management businesses;

•changes in interest rates, monetary policy and general economic conditions, which may impact Nicolet’s net interest income;

•potential difficulties in identifying and integrating the operations of future acquisition targets with those of Nicolet;

•the impact of purchase accounting with respect to our merger activities, or any change in the assumptions used regarding the assets purchased and liabilities assumed to determine their fair value;

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

•changes in accounting standards, rules and interpretations and the related impact on Nicolet’s financial statements;

•compliance or operational risks related to new products, services, ventures, or lines of business, if any, that Nicolet may pursue or implement;

•changes in monetary and tax policies;

•changes occurring in business conditions and inflation;

•our ability to attract and retain key personnel;

•examinations by our regulatory authorities, including the possibility that the regulatory authorities may, among other things, require us to increase our allowance for credit losses, write-down assets, or take other actions;

•risks associated with actual or potential information gatherings, investigations or legal proceedings by customers, regulatory agencies or others;

•the potential effects of events beyond our control that may have a destabilizing effect on financial markets and the economy, such as weather events, natural disasters, epidemics and pandemics (including COVID-19), war or terrorist activities, disruptions in our customers’ supply chains, disruptions in transportation, essential utility outages or trade disputes and related tariffs;

•each of the factors and risks under Item 1A, “Risk Factors” of Nicolet’s 2021 Annual Report on Form 10-K and in subsequent filings we make with the SEC; and

•risks related to our merger with Charter, including:

◦possible negative impact on our stock price and future business and financial results;

◦unexpected costs associated with the merger;

◦diversion of management’s attention from ongoing business operations and opportunities;

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◦possible inability to achieve expected synergies and operating efficiencies in the merger within the expected timeframes or at all;

◦the impact of, or problems arising from the integration of the two companies;

◦the outcome of litigation or of matters before regulatory agencies, whether currently existing or commencing in the future, including litigation related to the merger;

◦potential adverse reactions or changes to business or employee relationships, including those resulting from the completion of the merger; and

◦current or future adverse legislation or regulation.

•the risk that Nicolet’s analysis of these risks and forces could be incorrect and/or that the strategies developed to address them could be unsuccessful.

These factors should be considered in evaluating the forward-looking statements, and you should not place undue reliance on such statements.

Overview

The following discussion is management’s analysis of the consolidated financial condition as of September 30, 2022 and December 31, 2021 and results of operations for the three and nine-month periods ended September 30, 2022 and 2021. It should be read in conjunction with Nicolet’s audited consolidated financial statements included in Nicolet’s 2021 Annual Report on Form 10-K.

Our financial performance and certain balance sheet line items were impacted by the timing and size of our 2021 acquisitions of Mackinac Financial Corporation (“Mackinac”) on September 3, 2021 and County Bancorp, Inc. (“County”) on December 3, 2021, as well as our 2022 acquisition of Charter Bankshares, Inc. (“Charter”) on August 26, 2022. Certain income statement results, average balances and related ratios include partial contributions from Mackinac, County, and Charter, each from the respective acquisition date. Additional information on our acquisition activity is included in Note 2, “Acquisitions” in the Notes to Unaudited Consolidated Financial Statements, under Part I, Item 1.

Economic Outlook

Growth in economic activity and demand for goods and services, combined with labor shortages, supply chain complications and geopolitical matters, have contributed to rising inflation. In response, the Federal Reserve has raised interest rates from a target range of 0.00%-0.25% in early March 2022 to 3.00%-3.25% at the end of September 2022. In addition, the Federal Reserve has signaled that it anticipates additional increases in the target range are likely to mitigate the hardships caused by the ongoing Russia-Ukraine conflict, continued supply chain disruptions, and increased inflationary pressure. The tightening of the Federal Reserve’s monetary policies, including these increases in the target range and the tapering of the Federal Reserve’s balance sheet, combined with ongoing economic and political instability, increases the risk of an economic recession. While forecasts vary, many economists are projecting that U.S. economic growth will slow and inflation will remain elevated in the coming quarters, potentially resulting in a contraction of the U.S. gross domestic output by 2023, if not earlier. The timing and impact of inflation and rising interest rates on our business and related financial results will depend on future developments, which are highly uncertain and difficult to predict.

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Table 1: Earnings Summary and Selected Financial Data
	At or for the Three Months Ended															At or for the Nine Months Ended
(In thousands, except per share data)	9/30/2022			6/30/2022			3/31/2022			12/31/2021			9/30/2021			9/30/2022			9/30/2021
Results of operations:
Net interest income	$	62,990		$	55,084		$	53,795		$	53,559		$	35,184		$	171,869		$	104,396
Provision for credit losses	8,600			750			300			8,400			6,000			9,650			6,500
Noninterest income	13,000			14,131			15,943			16,064			13,996			43,074			51,300
Noninterest expense	42,567			36,538			37,550			39,408			33,061			116,655			89,889
Income before income tax expense	24,823			31,927			31,888			21,815			10,119			88,638			59,307
Income tax expense	6,313			7,942			7,724			5,510			2,295			21,979			14,960
Net income	$	18,510		$	23,985		$	24,164		$	16,305		$	7,824		$	66,659		$	44,347
Earnings per common share ("EPS"):
Basic	$	1.33		$	1.79		$	1.77		$	1.29		$	0.75		$	4.88		$	4.39
Diluted	$	1.29		$	1.73		$	1.70		$	1.25		$	0.73		$	4.72		$	4.22
Common Shares:
Basic weighted average	13,890			13,402			13,649			12,626			10,392			13,648			10,098
Diluted weighted average	14,310			13,852			14,215			13,049			10,776			14,127			10,503
Outstanding (period end)	14,673			13,407			13,457			13,994			11,952			14,673			11,952
Period-End Balances:
Loans	$	5,984,437		$	4,978,654		$	4,683,315		$	4,621,836		$	3,533,198		$	5,984,437		$	3,533,198
Allowance for credit losses - loans	60,348			50,655			49,906			49,672			38,399			60,348			38,399
Total assets	8,895,916			7,370,252			7,320,212			7,695,037			6,407,820			8,895,916			6,407,820
Deposits	7,395,902			6,286,266			6,231,120			6,465,916			5,428,774			7,395,902			5,428,774
Stockholders’ equity (common)	938,463			839,387			836,310			891,891			729,278			938,463			729,278
Book value per common share	63.96			62.61			62.15			63.73			61.01			63.96			61.01
Tangible book value per common share (2)	36.21			37.49			37.03			39.47			38.43			36.21			38.43
Financial Ratios: (1)
Return on average assets	0.93		%	1.32		%	1.30		%	0.96		%	0.59		%	1.18		%	1.24		%
Return on average common equity	8.25			11.48			11.38			8.24			5.10			10.32			10.43
Return on average tangible common equity (2)	13.93			19.21			18.75			13.19			7.62			17.25			15.41
Stockholders' equity to assets	10.55			11.39			11.42			11.59			11.38			10.55			11.38
Tangible common equity to tangible assets (2)	6.26			7.15			7.14			7.51			7.48			6.26			7.48
Reconciliation of Non-GAAP Financial Measures:
Adjusted net income reconciliation (3)
Net income (GAAP)	$	18,510		$	23,985		$	24,164		$	16,305		$	7,824		$	66,659		$	44,347
Adjustments:
Provision expense related to merger	8,000			—			—			8,400			6,000			8,000			6,000
Assets (gains) losses, net	46			(1,603)			(1,313)			(465)			1,187			(2,870)			(3,716)
Merger-related expense	519			555			98			2,202			2,793			1,172			3,449
Branch closure expense	—			—			—			—			944			—			944
Adjustments subtotal	8,565			(1,048)			(1,215)			10,137			10,924			6,302			6,677
Tax on Adjustments (25% effective tax rate)	2,141			(262)			(304)			2,534			2,731			1,576			1,669
Adjustments, net of tax	6,424			(786)			(911)			7,603			8,193			4,727			5,008
Adjusted net income (Non-GAAP)	$	24,934		$	23,199		$	23,253		$	23,908		$	16,017		$	71,386		$	49,355
Adjusted diluted EPS (Non-GAAP)	$	1.74		$	1.67		$	1.64		$	1.83		$	1.49		$	5.05		$	4.70
Tangible Assets:
Total assets	$	8,895,916		$	7,370,252		$	7,320,212		$	7,695,037		$	6,407,820
Goodwill and other intangibles, net	407,117			336,721			338,068			339,492			269,954
Tangible assets	$	8,488,799		$	7,033,531		$	6,982,144		$	7,355,545		$	6,137,866
Tangible Common Equity:
Stockholders’ equity (common)	$	938,463		$	839,387		$	836,310		$	891,891		$	729,278
Goodwill and other intangibles, net	407,117			336,721			338,068			339,492			269,954
Tangible common equity	$	531,346		$	502,666		$	498,242		$	552,399		$	459,324
Average Tangible Common Equity:
Stockholders’ equity (common)	$	890,205		$	837,975		$	861,319		$	784,666		$	608,946		$	863,272		$	568,390
Goodwill and other intangibles, net	363,211			337,289			338,694			294,051			201,748			346,488			183,632
Average tangible common equity	$	526,994		$	500,686		$	522,625		$	490,615		$	407,198		$	516,784		$	384,758

Note: Numbers may not sum due to rounding.

(1) Income statement-related ratios for partial-year periods are annualized.

(2) The ratios of tangible book value per common share, return on average tangible common equity, and tangible common equity to tangible assets are non-GAAP financial measures that exclude goodwill and other intangibles, net. These financial ratios have been included as management considers them to be useful metrics with which to analyze and evaluate financial condition and capital strength. See section “Non-GAAP Financial Measures” below.

(3) The adjusted net income measure is a non-GAAP financial measure that provides information that management believes is useful to investors in understanding our operating performance and trends and also aids investors in the comparison of our financial performance to the financial performance of peer banks. See section “Non-GAAP Financial Measures” below.

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Non-GAAP Financial Measures

We identify “tangible book value per common share,” “return on average tangible common equity,” “tangible common equity to tangible assets” “adjusted net income,” and “adjusted diluted earnings per common share” as “non-GAAP financial measures.” In accordance with the SEC’s rules, we identify certain financial measures as non-GAAP financial measures if such financial measures exclude or include amounts in the most directly comparable measures calculated and presented in accordance with generally accepted accounting principles (“GAAP”) in effect in the United States in our statements of income, balance sheets or statements of cash flows. Non-GAAP financial measures do not include operating and other statistical measures, ratios or statistical measures calculated using exclusively financial measures calculated in accordance with GAAP.

Management believes that the presentation of these non-GAAP financial measures (a) are important metrics used to analyze and evaluate our financial condition and capital strength and provide important supplemental information that contributes to a proper understanding of our operating performance and trends, (b) enables a more complete understanding of factors and trends affecting our business, and (c) allows investors to compare our financial performance to the financial performance of our peers and to evaluate our performance in a manner similar to management, the financial services industry, bank stock analysts, and bank regulators. Management uses non-GAAP measures as follows: in the preparation of our operating budgets, monthly financial performance reporting, and in our presentation to investors of our performance. However, we acknowledge that these non-GAAP financial measures have a number of limitations. Limitations associated with non-GAAP financial measures include the risk that persons might disagree as to the appropriateness of items comprising these measures and that different companies might calculate these measures differently. These disclosures should not be considered an alternative to our GAAP results. A reconciliation of non-GAAP financial measures to the most directly comparable GAAP financial measures is presented in the table above.

Performance Summary

Net income was $66.7 million for the nine months ended September 30, 2022, compared to $44.3 million for the nine months ended September 30, 2021. Earnings per diluted common share was $4.72 for the first nine months of 2022, compared to $4.22 for the first nine months of 2021.

•Net interest income was $171.9 million for the first nine months of 2022, up $67.5 million (65%) over the first nine months of 2021. Interest income grew $74.2 million attributable to favorable volumes (mostly higher loan volumes), partly offset by net unfavorable rates (as loans reprice at varying intervals to reflect the recent Federal Reserve interest rate increases). Interest expense increased $6.8 million between the nine-month periods mostly from the larger funding base. Net interest margin was 3.36% for the nine months ended September 30, 2022, compared to 3.22% for the nine months ended September 30, 2021. For additional information regarding net interest income, see “Income Statement Analysis — Net Interest Income.”

•Noninterest income was $43.1 million for the first nine months of 2022, down $8.2 million (16%) from the comparable 2021 period, primarily due to lower net mortgage income. For additional information regarding noninterest income, see “Income Statement Analysis — Noninterest Income.”

•Noninterest expense was $116.7 million, $26.8 million (30%) higher than the first nine months of 2021. Personnel costs increased $15.9 million, and non-personnel expenses combined increased $10.9 million (27%) over the comparable 2021 period. For additional information regarding noninterest expense, see “Income Statement Analysis — Noninterest Expense.”

•Nonperforming assets were $40 million, representing 0.45% of total assets at September 30, 2022, compared to 0.73% at December 31, 2021 and 0.33% at September 30, 2021. For additional information regarding nonperforming assets, see “Balance Sheet Analysis – Nonperforming Assets.”

•At September 30, 2022, assets were $8.9 billion, up $1.2 billion (16%) from December 31, 2021, largely due to the Charter acquisition, which added total assets of $1.1 billion at acquisition. Total assets increased $2.5 billion (39%) from September 30, 2021, mainly due to the acquisitions of Charter and County. For additional balance sheet discussion see “Balance Sheet Analysis.”

•At September 30, 2022, loans were $6.0 billion, an increase of $1.4 billion (29%) from December 31, 2021, including the Charter acquisition (which added loans of $827 million at acquisition) and solid organic loan growth. Total loans were $2.5 billion (69%) higher than September 30, 2021, largely due to the acquisitions of Charter and County. On average, loans grew $2.1 billion (70%) over the first nine months of 2021. For additional information regarding loans, see “Balance Sheet Analysis — Loans.”

•Total deposits were $7.4 billion at September 30, 2022, an increase of $930 million (14%) from December 31, 2021, including the Charter acquisition (which added deposits of $870 million at acquisition) and higher brokered deposits. Total deposits were $2.0 billion (36%) higher than September 30, 2021, largely due to the Charter and County

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acquisitions. Year-to-date average deposits were $2.3 billion (57%) higher than the first nine months of 2021. For additional information regarding deposits, see “Balance Sheet Analysis – Deposits.”

INCOME STATEMENT ANALYSIS

Net Interest Income

Tax-equivalent net interest income is a non-GAAP measure, but is a preferred industry measurement of net interest income (and its use in calculating a net interest margin) as it enhances the comparability of net interest income arising from taxable and tax-exempt sources. The tax-equivalent adjustments bring tax-exempt interest to a level that would yield the same after-tax income by applying the effective Federal corporate tax rates to the underlying assets. Tables 2 and 3 present information to facilitate the review and discussion of selected average balance sheet items, tax-equivalent net interest income, interest rate spread and net interest margin.

Table 2: Average Balance Sheet and Net Interest Income Analysis - Tax-Equivalent Basis

	For the Nine Months Ended September 30,
	2022						2021
(in thousands)	Average Balance		Interest		Average Yield/Rate		Average Balance		Interest		Average Yield/Rate
ASSETS
Interest-earning assets
Commercial PPP Loans	$	6,433	$	1,391	28.51	%	$	173,463	$	11,123	8.46	%
All other commercial-based loans	4,143,934		138,881		4.42	%	2,222,290		75,845		4.50	%
Retail-based loans	825,065		27,141		4.39	%	528,895		17,357		4.38	%
Total loans, including loan fees (1)(2)	4,975,432		167,413		4.45	%	2,924,648		104,325		4.71	%
Investment securities:
Taxable	1,389,540		15,612		1.50	%	418,897		5,935		1.89	%
Tax-exempt (2)	202,011		3,661		2.42	%	140,691		2,252		2.13	%
Total investment securities	1,591,551		19,273		1.62	%	559,588		8,187		1.95	%
Other interest-earning assets	251,983		2,734		1.44	%	829,382		2,140		0.34	%
Total non-loan earning assets	1,843,534		22,007		1.59	%	1,388,970		10,327		0.99	%
Total interest-earning assets	6,818,966		$	189,420	3.67	%	4,313,618		$	114,652	3.51	%
Other assets, net	731,928						452,047
Total assets	$	7,550,894					$	4,765,665
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities
Savings	$	854,307	$	827	0.13	%	$	595,385	$	272	0.06	%
Interest-bearing demand	1,010,372		2,647		0.35	%	681,079		2,114		0.41	%
Money market accounts (“MMA”)	1,502,038		2,132		0.19	%	889,022		363		0.05	%
Core time deposits	556,970		1,240		0.30	%	318,477		2,165		0.91	%
Total interest-bearing core deposits	3,923,687		6,846		0.23	%	2,483,963		4,914		0.26	%
Brokered deposits	450,311		2,394		0.71	%	284,738		2,885		1.35	%
Total interest-bearing deposits	4,373,998		9,240		0.28	%	2,768,701		7,799		0.38	%
Wholesale funding	239,362		7,053		3.91	%	79,882		1,729		2.87	%
Total interest-bearing liabilities	4,613,360		16,293		0.47	%	2,848,583		9,528		0.45	%
Noninterest-bearing demand deposits	2,034,865						1,307,222
Other liabilities	39,397						41,470
Stockholders’ equity	863,272						568,390
Total liabilities and stockholders’ equity	$	7,550,894					$	4,765,665
Interest rate spread					3.20	%					3.06	%
Net free funds					0.16	%					0.16	%
Tax-equivalent net interest income and net interest margin			$	173,127	3.36	%			$	105,124	3.22	%
Tax-equivalent adjustment			$	1,258					$	728
Net interest income			$	171,869					$	104,396

(1)Nonaccrual loans and loans held for sale are included in the daily average loan balances outstanding.

(2)The yield on tax-exempt loans and tax-exempt investment securities is computed on a tax-equivalent basis using a federal tax rate of 21% and adjusted for the disallowance of interest expense.

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Table 2: Average Balance Sheet and Net Interest Income Analysis - Tax-Equivalent Basis (Continued)

	For the Three Months Ended September 30,
	2022						2021
(in thousands)	Average Balance		Interest		Average Yield/Rate		Average Balance		Interest		Average Yield/Rate
ASSETS
Interest-earning assets
Commercial PPP Loans	$	605	$	1	0.93	%	$	109,318	$	2,310	8.27	%
All other commercial-based loans	4,484,746		52,673		4.60	%	2,378,480		26,759		4.40	%
Retail-based loans	905,907		10,421		4.60	%	588,624		6,242		4.24	%
Total loans, including loan fees (1)(2)	5,391,258		63,095		4.60	%	3,076,422		35,311		4.51	%
Investment securities:
Taxable	1,391,330		5,350		1.54	%	472,598		2,061		1.74	%
Tax-exempt (2)	234,123		1,639		2.80	%	139,272		744		2.14	%
Total investment securities	1,625,453		6,989		1.72	%	611,870		2,805		1.83	%
Other interest-earning assets	144,409		1,127		3.09	%	1,046,476		869		0.33	%
Total non-loan earning assets	1,769,862		8,116		1.83	%	1,658,346		3,674		0.88	%
Total interest-earning assets	7,161,120		$	71,211	3.91	%	4,734,768		$	38,985	3.24	%
Other assets, net	695,011						511,425
Total assets	$	7,856,131					$	5,246,193
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing liabilities
Savings	$	899,503	$	488	0.22	%	$	662,260	$	100	0.06	%
Interest-bearing demand	990,891		1,148		0.46	%	711,442		685		0.38	%
MMA	1,540,610		1,309		0.34	%	962,538		135		0.06	%
Core time deposits	543,444		408		0.30	%	329,012		630		0.76	%
Total interest-bearing core deposits	3,974,448		3,353		0.33	%	2,665,252		1,550		0.23	%
Brokered deposits	468,010		1,285		1.09	%	284,164		894		1.25	%
Total interest-bearing deposits	4,442,458		4,638		0.41	%	2,949,416		2,444		0.33	%
Wholesale funding	287,751		3,090		4.25	%	143,615		1,113		3.08	%
Total interest-bearing liabilities	4,730,209		7,728		0.65	%	3,093,031		3,557		0.46	%
Noninterest-bearing demand deposits	2,200,789						1,499,052
Other liabilities	34,928						45,164
Stockholders’ equity	890,205						608,946
Total liabilities and stockholders’ equity	$	7,856,131					$	5,246,193
Interest rate spread					3.26	%					2.78	%
Net free funds					0.22	%					0.16	%
Tax-equivalent net interest income and net interest margin			$	63,483	3.48	%			$	35,428	2.94	%
Tax-equivalent adjustment			$	493					$	244
Net interest income			$	62,990					$	35,184

(1)Nonaccrual loans and loans held for sale are included in the daily average loan balances outstanding.

(2)The yield on tax-exempt loans and tax-exempt investment securities is computed on a tax-equivalent basis using a federal tax rate of 21% and adjusted for the disallowance of interest expense.

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Table 3: Volume/Rate Variance - Tax-Equivalent Basis

	For the Three Months Ended September 30, 2022 Compared to September 30, 2021:						For the Nine Months Ended  September 30, 2022 Compared to September 30, 2021:
	Increase (Decrease) Due to Changes in						Increase (Decrease) Due to Changes in
(in thousands)	Volume		Rate		Net (1)		Volume		Rate		Net (1)
Interest-earning assets
Commercial PPP Loans	$	(1,220)	$	(1,089)	$	(2,309)	$	(18,046)	$	8,314	$	(9,732)
All other commercial-based loans	24,677		1,237		25,914		77,726		(14,690)		63,036
Retail-based loans	3,562		617		4,179		9,667		117		9,784
Total loans (2)	27,019		765		27,784		69,347		(6,259)		63,088
Investment securities:
Taxable	2,871		418		3,289		9,228		449		9,677
Tax-exempt (2)	615		280		895		1,081		328		1,409
Total investment securities	3,486		698		4,184		10,309		777		11,086
Other interest-earning assets	(454)		712		258		(343)		937		594
Total non-loan earning assets	3,032		1,410		4,442		9,966		1,714		11,680
Total interest-earning assets	$	30,051	$	2,175	$	32,226	$	79,313	$	(4,545)	$	74,768
Interest-bearing liabilities
Savings	$	47	$	341	$	388	$	155	$	400	$	555
Interest-bearing demand	305		158		463		901		(368)		533
MMA	125		1,049		1,174		385		1,384		1,769
Core time deposits	278		(500)		(222)		1,047		(1,972)		(925)
Total interest-bearing core deposits	755		1,048		1,803		2,488		(556)		1,932
Brokered deposits	516		(125)		391		1,239		(1,730)		(491)
Total interest-bearing deposits	1,271		923		2,194		3,727		(2,286)		1,441
Wholesale funding	1,395		582		1,977		4,735		589		5,324
Total interest-bearing liabilities	2,666		1,505		4,171		8,462		(1,697)		6,765
Net interest income	$	27,385	$	670	$	28,055	$	70,851	$	(2,848)	$	68,003

(1)The change in interest due to both rate and volume has been allocated in proportion to the relationship of dollar amounts of change in each.

(2)The yield on tax-exempt loans and tax-exempt investment securities is computed on a tax-equivalent basis using a federal tax rate of 21% and adjusted for the disallowance of interest expense.

The Federal Reserve raised short-term interest rates a total of 300 bps since mid-March 2022, increasing the Federal Funds rate to a range of 3.00% to 3.25% as of September 30, 2022. Prior to this, short-term interest rates remained steady since March 2020, with a Federal Funds range of 0.00% to 0.25%.

Tax-equivalent net interest income was $173.1 million for the first nine months of 2022, comprised of net interest income of $171.9 million ($67.5 million or 65% higher than the first nine months of 2021), and a $1.3 million tax-equivalent adjustment. The $68.0 million increase in tax-equivalent net interest income was attributable to net favorable volumes (which added $70.9 million, mostly from interest-earning asset volumes added with the recent acquisitions, as well as solid loan growth and strategic investment purchases) and net unfavorable rates (which decreased net interest income $2.8 million from competitive pricing pressure and the lag in repricing to current market interest rates).

Average interest-earning assets increased to $6.8 billion, up $2.5 billion (58%) over the 2021 comparable period, primarily due to the acquisitions of Mackinac, County, and Charter (in September 2021, December 2021, and August 2022, respectively). Between the comparable nine-month periods, average loans increased $2.1 billion (70%), mostly due to the Mackinac, County, and Charter acquisitions, which added loans of $0.9 billion, $1.0 billion, and $0.8 billion respectively, at acquisition. In addition, average loans reflected strong organic loan growth and the repurchase of previously participated agricultural loans, which more than offset the reduction in PPP loans from continued loan forgiveness. Average investment securities increased $1.0 billion between the comparable nine-month periods, partly due to the acquisitions, and partly due to the strategic re-investment of approximately $0.5 billion excess cash liquidity into U.S. Treasury securities of varying yields and durations during fourth quarter 2021. Other interest-earning assets declined $0.6 billion with the additional assets added with the acquisitions, more than offset by lower cash mostly from the re-investment of excess cash liquidity noted above. As a result, the mix of average interest-earning assets shifted to 73% loans, 23% investments and 4% other interest-earning assets (mostly cash) for the first nine months of 2022, compared to 68%, 13% and 19%, respectively, for the first nine months of 2021.

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Average interest-bearing liabilities were $4.6 billion for the first nine months of 2022, an increase of $1.8 billion (62%) over the first nine months of 2021, primarily due to the acquisitions of Mackinac, County, and Charter. Average interest-bearing core deposits increased $1.4 billion and average brokered deposits increased $166 million between the comparable nine-month periods largely due to the acquisitions. Other interest-bearing liabilities grew $159 million between the comparable nine-month periods, partly due to the private placement of $100 million in fixed-to-floating rate subordinated notes in July 2021, and partly due to wholesale funding acquired with the acquisitions. The mix of average interest-bearing liabilities was 85% core deposits, 10% brokered deposits and 5% wholesale funding for the first nine months of 2022, compared to 87%, 10% and 3%, respectively, for the first nine months of 2021.

Between the comparable nine-month periods, the interest rate spread increased 14 bps. The interest-earning asset yield increased 16 bps to 3.67% for the first nine months of 2022, primarily due to the changing mix of interest-earning assets (mostly the reduction in cash due to the re-investment of excess cash liquidity noted above). The loan yield declined 26 bps to 4.45% between the comparable nine-month periods, largely due to the impact of the low interest rate environment through early 2022 and competitive pricing pressures on new, renewed, and variable rate loans, while the yield on investment securities declined 33 bps to 1.62%, also attributable to the low interest rate environment through early 2022, as well as the strategic re-investment of cash into U.S. Treasury securities. The cost of funds increased 2 bps to 0.47% for the first nine months of 2022, as lower rates on core interest-bearing deposits and brokered deposits, were more than offset by higher wholesale funding rates and a shift in the mix of interest-bearing liabilities (mostly the increase in wholesale funding noted above). As a result, the tax-equivalent net interest margin was 3.36% for the first nine months of 2022, up 14 bps compared to 3.22% for the first nine months of 2021.

Tax-equivalent interest income was $189.4 million for the first nine months of 2022, up $74.8 million from the first nine months of 2021, comprised of $79.3 million higher volumes, partly offset by lower average rates. Interest income on loans increased $63.1 million over the first nine months of 2021, mostly due to higher average balances from the acquisitions, as well as solid loan growth. Between the comparable nine-month periods, interest income on investment securities grew $11.1 million, also attributable to the acquisitions, as well as the re-investment of excess cash liquidity (noted above). Interest expense increased to $16.3 million for the first nine months of 2022, up $6.8 million compared to the first nine months of 2021, comprised of $8.5 million higher volumes, partly offset by $1.7 million from lower overall cost of funds. Interest expense on deposits increased $1.4 million (18%) from the first nine months of 2021 given higher average interest-bearing deposit balances at a lower cost as product and rate changes were made during 2021 in the low rate environment, while brokered deposits cost less largely from maturities of higher-costing term brokered funds procured under competitive conditions in mid-2020 during the pandemic. Interest expense on wholesale funding increased between the comparable nine-month periods, mostly due to higher average balances from the July 2021 subordinated notes issuance, as well as wholesale funding acquired with the acquisitions.

Provision for Credit Losses

The provision for credit losses was $9.7 million for the nine months ended September 30, 2022 (comprised of $9.1 million related to the ACL-Loans and $0.6 million for the ACL on unfunded commitments), compared to $6.5 million for the nine months ended September 30, 2021 (comprised of $4.5 million related to the ACL-Loans and $2.0 million for the ACL on unfunded commitments). The 2022 provision for credit losses was mostly due to the Day 2 ACL increase from the Charter acquisition, while the 2021 provision for credit losses was mostly due to the Day 2 ACL increase for the Mackinac acquisition.

The provision for credit losses is predominantly a function of Nicolet’s methodology and judgment as to qualitative and quantitative factors used to determine the appropriateness of the ACL-Loans and unfunded commitments. The appropriateness of the ACL-Loans is affected by changes in the size and character of the loan portfolio, changes in levels of collateral dependent and other nonperforming loans, historical losses and delinquencies in each portfolio segment, the risk inherent in specific loans, concentrations of loans to specific borrowers or industries, existing and future economic conditions, the fair value of underlying collateral, and other factors which could affect expected credit losses. The ACL for unfunded commitments is affected by many of the same factors as the ACL-Loans, as well as funding assumptions relative to lines of credit. See also Note 6, “Loans, Allowance for Credit Losses - Loans, and Credit Quality” of the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for additional disclosures. For additional information regarding asset quality and the ACL-Loans, see “BALANCE SHEET ANALYSIS — Loans,” “— Allowance for Credit Losses - Loans,” and “— Nonperforming Assets.”

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Noninterest Income

Table 4: Noninterest Income

	Three Months Ended September 30,								Nine Months Ended September 30,
(in thousands)	2022		2021		$ Change		% Change		2022		2021		$ Change		% Change
Trust services fee income	$	1,969	$	2,043	$	(74)	(4)	%	$	5,984	$	5,724	$	260	5	%
Brokerage fee income	3,040		3,154		(114)		(4)		9,716		8,938		778		9
Mortgage income, net	1,728		4,808		(3,080)		(64)		7,186		17,637		(10,451)		(59)
Service charges on deposit accounts	1,589		1,314		275		21		4,602		3,541		1,061		30
Card interchange income	3,012		2,299		713		31		8,543		6,492		2,051		32
BOLI income	966		572		394		69		2,667		1,658		1,009		61
LSR income, net	(517)		—		(517)		N/M		(1,042)		—		(1,042)		N/M
Other income	1,259		993		266		27		2,548		3,594		(1,046)		(29)
Noninterest income without  net gains	13,046		15,183		(2,137)		(14)		40,204		47,584		(7,380)		(16)
Asset gains (losses), net	(46)		(1,187)		1,141		N/M		2,870		3,716		(846)		(23)
Total noninterest income	$	13,000	$	13,996	$	(996)	(7)	%	$	43,074	$	51,300	$	(8,226)	(16)	%
Trust services fee income & Brokerage fee income combined	$	5,009	$	5,197	$	(188)	(4)	%	$	15,700	$	14,662	$	1,038	7	%

N/M means not meaningful.

Noninterest income was $43.1 million for the first nine months of 2022, a decrease of $8.2 million (16%) compared to $51.3 million for the first nine months of 2021, primarily due to lower net mortgage income.

Trust services fee income and brokerage fee income combined were $15.7 million, up $1.0 million (7%) over the first nine months of 2021, consistent with the growth in accounts and assets under management, though tempered by unfavorable market-related declines.

Mortgage income represents net gains received from the sale of residential real estate loans into the secondary market, capitalized mortgage servicing rights (“MSR”), servicing fees net of MSR amortization, fair value marks on the mortgage interest rate lock commitments and forward commitments (“mortgage derivatives”), and MSR valuation changes, if any. Net mortgage income of $7.2 million, decreased $10.5 million (59%) between the comparable nine-month periods, mostly due to the rising interest rate environment reducing secondary market volumes and the related gains on sales. Gains on sales and capitalized gains combined decreased $10.9 million and the fair value of the mortgage derivatives decreased $0.4 million, while MSR impairment was $0.9 million favorable on slower paydown activity. See also “Lending-Related Commitments” and Note 7, “Goodwill and Other Intangibles and Servicing Rights” of the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for additional disclosures on the MSR asset.

Service charges on deposit accounts were up $1.1 million to $4.6 million for the nine months ended September 30, 2022, mostly due to the larger deposit base from the acquisitions.

Card interchange income grew $2.1 million (32%) between the comparable nine-month periods due to higher volume and activity.

BOLI income was up $1.0 million between the comparable nine-month periods, attributable to higher average balances from BOLI acquired with the acquisitions and also benefiting from the rising interest rate environment.

Loan servicing rights (“LSR”) income includes agricultural loan servicing fees net of the related LSR amortization. Nicolet is not adding new loans to this servicing portfolio and repurchased approximately $100 million of these previously participated loans during second quarter 2022; thus, the LSR amortization is currently outpacing the loan servicing fees. See also Note 7, “Goodwill and Other Intangibles and Servicing Rights” of the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for additional information on the LSR asset.

Other income of $2.5 million for the nine months ended September 30, 2022 was down $1.0 million from the comparable 2021 period, largely due to unfavorable changes in the fair value of nonqualified deferred compensation plan assets from the recent market declines, partly offset by new revenue from crop insurance sales (related to the County acquisition). See also “Noninterest Expense” for discussion on the offsetting fair value change to the nonqualified deferred compensation plan liabilities.

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Net asset gains of $2.9 million for the first nine months of 2022 were primarily attributable to gains on sales of other real estate owned (mostly closed bank branch locations), while net asset gains of $3.7 million for the first nine months of 2021 were primarily attributable to favorable fair value marks on equity securities.

Noninterest Expense

Table 5: Noninterest Expense

	Three Months Ended September 30,								Nine Months Ended September 30,
($ in thousands)	2022		2021		Change		% Change		2022		2021		Change		% Change
Personnel	$	24,136	$	16,927	$	7,209	43	%	$	65,008	$	49,127	$	15,881	32	%
Occupancy, equipment and office	7,641		5,749		1,892		33		21,476		13,939		7,537		54
Business development and marketing	2,281		1,654		627		38		6,169		3,853		2,316		60
Data processing	3,664		2,939		725		25		10,647		8,408		2,239		27
Intangibles amortization	1,628		758		870		115		4,399		2,400		1,999		83
FDIC assessments	480		480		—		—		1,440		1,555		(115)		(7)
Merger-related expense	519		2,793		(2,274)		(81)		1,172		3,449		(2,277)		(66)
Other expense	2,218		1,761		457		26		6,344		7,158		(814)		(11)
Total noninterest expense	$	42,567	$	33,061	$	9,506	29	%	$	116,655	$	89,889	$	26,766	30	%
Non-personnel expenses	$	18,431	$	16,134	$	2,297	14	%	$	51,647	$	40,762	$	10,885	27	%
Average full-time equivalent (“FTE”) employees	907		646		261		40	%	863		591		272		46	%

Noninterest expense was $116.7 million, an increase of $26.8 million (30%) over the first nine months of 2021. Personnel costs increased $15.9 million (32%), while non-personnel expenses combined increased $10.9 million (27%) compared to the first nine months of 2021.

Personnel expense was $65.0 million for the nine months ended September 30, 2022, an increase of $15.9 million from the comparable period in 2021. Salary expense increased $16.4 million (58%) over the first nine months of 2021, reflecting higher salaries from the larger employee base (with average full-time equivalent employees up 46%, mostly due to the timing of the 2022 and 2021 acquisitions), investments in our wealth team, and merit increases between the years. Salary expense also reflected increases in hourly pay and base salaries effective at the end of March 2022, which benefited 67% of our employee base. Fringe benefits increased $3.4 million (50%) over the first nine months of 2021, commensurate with the larger employee base. Personnel expense was also impacted by the change in the fair value of nonqualified deferred compensation plan liabilities from the recent market declines. See also “Noninterest Income” for discussion on the offsetting fair value change to the nonqualified deferred compensation plan assets.

Occupancy, equipment and office expense was $21.5 million for the first nine months of 2022, up $7.5 million (54%) compared to the first nine months of 2021, largely due to the expanded branch network with the recent acquisitions, as well as additional expense for software and technology solutions.

Business development and marketing expense was $6.2 million, up $2.3 million (60%), between the comparable nine-month periods, largely due to higher travel and entertainment expenses, as well as additional marketing donations, promotions, and media to support our expanded branch network and community base.

Data processing expense was $10.6 million, up $2.2 million (27%) between the comparable nine-month periods, mostly due to volume-based increases in core processing charges, including the larger operating base following the Mackinac, County, and Charter acquisitions.

Intangibles amortization increased $2.0 million between the comparable nine-month periods due to higher amortization from the intangibles added with the recent acquisitions.

Other expense was $6.3 million, down $0.8 million (11%) between the comparable nine-month periods, mostly due to a $2.1 million contract termination charge incurred in 2021, partly offset by higher professional fees, costs to carry closed bank branches, and overall higher expenses related to our larger operating base.

Income Taxes

Income tax expense was $22.0 million (effective tax rate of 24.8%) for the first nine months of 2022, compared to $15.0 million (effective tax rate of 25.2%) for the comparable period of 2021.

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Income Statement Analysis – Three Months Ended September 30, 2022 versus Three Months Ended September 30, 2021

Net income was $18.5 million for the three months ended September 30, 2022, compared to $7.8 million for the three months ended September 30, 2021. Earnings per diluted common share was $1.29 for third quarter 2022, compared to $0.73 for third quarter 2021.

Tax-equivalent net interest income was $63.5 million for third quarter 2022, comprised of net interest income of $63.0 million ($27.8 million or 79% over third quarter 2021), and a tax-equivalent adjustment of $0.5 million. Tax-equivalent interest income increased $32.2 million between the third quarter periods, with $30.1 million from stronger volumes (led by average loans which grew $2.3 billion or 75% over third quarter 2021, mostly due to the acquisitions) and $2.2 million from higher yields. Average investment securities increased $1.0 billion between the comparable third quarter periods, partly due to the acquisitions, and partly due to the strategic re-investment of approximately $0.5 billion excess cash liquidity into U.S. Treasury securities of varying yields and durations during fourth quarter 2021. Interest expense increased $4.2 million from third quarter 2021, including $2.7 million from higher volumes (mostly from higher average deposit balances from the acquisitions) and $1.5 million due to higher overall funding costs. For additional information regarding average balances, net interest income and net interest margin, see “INCOME STATEMENT ANALYSIS — Net Interest Income.”

The net interest margin for third quarter 2022 was 3.48%, compared to 2.94% for third quarter 2021, influenced by interest rate increases and the changing balance sheet mix. The mix of average interest-earning assets shifted from 65% loans, 13% investments and 22% other interest-earning assets (mostly cash) for third quarter 2021, to 75%, 23% and 2%, respectively, for third quarter 2022. As a result, the yield on interest-earning assets of 3.91% increased 67 bps from third quarter 2021. The yield on loans was 4.60%, 9 bps higher than third quarter 2021, largely due to the impact of the rising interest rate environment. The cost of funds of 0.65% increased 19 bps between the comparable quarters, also due to the rising interest rates.

Provision for credit losses was $8.6 million for third quarter 2022 (comprised of $8.2 million related to the ACL-Loans, and $0.4 million for the ACL on unfunded commitments), compared to $6.0 million provision for credit losses for third quarter 2021. The 2022 provision for credit losses was mostly due to the Day 2 ACL increase from the Charter acquisition, while the 2021 provision for credit losses was mostly due to the Day 2 ACL increase for the Mackinac acquisition. For additional information regarding the allowance for credit losses-loans and asset quality, see “BALANCE SHEET ANALYSIS — Allowance for Credit Losses - Loans” and “BALANCE SHEET ANALYSIS — Nonperforming Assets.”

Noninterest income was $13.0 million for third quarter 2022, a decrease of $1.0 million (7%) from third quarter 2021. Net mortgage income of $1.7 million for third quarter 2022 was down $3.1 million (64%) from third quarter 2021, primarily due to the rising interest rate environment reducing secondary market volumes and the related gains on sales. Trust services fee income and brokerage fee income combined was down $0.2 million (4%), as unfavorable market-related declines outpaced the growth in accounts and assets under management. Service charges on deposit accounts grew $0.3 million to $1.6 million for third quarter 2022, mostly due to the larger deposit base from the acquisitions. Card interchange income grew $0.7 million (31%) due to higher volume and activity. Net asset losses were minimal in third quarter 2022, while net asset losses of $1.2 million in third quarter 2021 were primarily attributable to fair value marks on equity securities. For additional information regarding noninterest income, see “INCOME STATEMENT ANALYSIS — Noninterest Income.”

Noninterest expense was $42.6 million for third quarter 2022, an increase of $9.5 million (29%) from third quarter 2021, including a $7.2 million increase in personnel expense and a $2.3 million increase in non-personnel expenses. The increase in personnel was due to higher salaries and fringe benefits from the larger employee base (with average full-time equivalent employees up 40%), investments in our wealth team, and merit increases between the years. Occupancy, equipment, and office of $7.6 million was up $1.9 million (33%), largely due to the expanded branch network with the recent acquisitions, as well as additional expense for software and technology solutions. Business development and marketing of $2.3 million increased $0.6 million over third quarter 2021, largely due to higher travel and entertainment expenses, as well as additional marketing donations, promotions, and media to support our expanded branch network and community base. Data processing expense was $3.7 million, up $0.7 million (25%) between the comparable third quarter periods, mostly due to volume-based increases in core processing charges, including the larger operating base following the Mackinac, County, and Charter acquisitions. Other expense was $2.2 million, up $0.5 million between the comparable third quarter periods, primarily due to higher professional fees and overall higher expenses related to our larger operating base. For additional information regarding noninterest expense, see “INCOME STATEMENT ANALYSIS — Noninterest Expense.”

Income tax expense for third quarter 2022 was $6.3 million, with an effective tax rate of 25.4%, compared to income tax expense of $2.3 million and an effective tax rate of 22.7% for third quarter 2021.

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BALANCE SHEET ANALYSIS

At September 30, 2022, period end assets were $8.9 billion, an increase of $1.2 billion (16%) from December 31, 2021, largely due to the Charter acquisition, which added total assets of $1.1 billion at acquisition. Total loans increased $1.4 billion from December 31, 2021, largely due to the Charter acquisition (which added loans of $827 million at acquisition) and solid organic loan growth. Total deposits of $7.4 billion at September 30, 2022, increased $930 million from December 31, 2021, including the Charter acquisition (which added deposits of $870 million at acquisition) and higher brokered deposits. Total borrowings increased $288 million from December 31, 2021, with approximately half acquired with Charter and the remainder related to new FHLB advances. Total stockholders’ equity was $938 million at September 30, 2022, an increase of $47 million since December 31, 2021, primarily due to common stock issued in the Charter acquisition and current year earnings, partly offset by stock repurchase activity and unfavorable changes in the fair value of securities AFS.

Compared to September 30, 2021, assets were up $2.5 billion (39%) from September 30, 2021, largely due to the acquisitions of Charter and County. Total loans increased $2.5 billion and total deposits increased $2.0 billion from September 30, 2021, also largely due to the acquisitions of Charter and County. Stockholders’ equity increased $209 million from September 30, 2021, primarily due to common stock issued in the Charter and County acquisitions and net income, partially offset by stock repurchases over the year and negative net fair value investment changes.

Loans

In addition to the discussion that follows, see also Note 6, “Loans, Allowance for Credit Losses - Loans, and Credit Quality,” in the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for additional disclosures on loans. For additional information regarding the allowance for credit losses and nonperforming assets see also “BALANCE SHEET ANALYSIS – Allowance for Credit Losses - Loans” and “BALANCE SHEET ANALYSIS – Nonperforming Assets.”

Nicolet services a diverse customer base in Wisconsin, Michigan and Minnesota. We concentrate on originating loans in our local markets and assisting current loan customers. The loan portfolio is widely diversified by types of borrowers, industry groups, and market areas.

An active credit risk management process is used to ensure that sound and consistent credit decisions are made. The credit management process is regularly reviewed and has been modified over the past several years to further strengthen the controls. Factors that are important to managing overall credit quality are sound loan underwriting and administration, systematic monitoring of existing loans and commitments, effective loan review on an ongoing basis, early problem loan identification and remedial action to minimize losses, an appropriate ACL-Loans, and sound nonaccrual and charge-off policies.

Table 6: Period End Loan Composition

	September 30, 2022				December 31, 2021				September 30, 2021
(in thousands)	Amount		% of Total		Amount		% of Total		Amount		% of Total
Commercial & industrial	$	1,268,252	21	%	$	1,042,256	23	%	$	956,257	27	%
Owner-occupied CRE	954,933		16		787,189		17		697,816		20
Agricultural	1,017,498		17		794,728		17		112,409		3
Commercial	3,240,683		54		2,624,173		57		1,766,482		50
CRE investment	1,132,951		19		818,061		18		662,871		19
Construction & land development	306,446		5		213,035		5		173,971		5
Commercial real estate	1,439,397		24		1,031,096		23		836,842		24
Commercial-based loans	4,680,080		78		3,655,269		80		2,603,324		74
Residential construction	101,286		2		70,353		1		59,611		2
Residential first mortgage	970,384		16		713,983		15		688,491		19
Residential junior mortgage	176,428		3		131,424		3		130,279		4
Residential real estate	1,248,098		21		915,760		19		878,381		25
Retail & other	56,259		1		50,807		1		51,493		1
Retail-based loans	1,304,357		22		966,567		20		929,874		26
Total loans	$	5,984,437	100	%	$	4,621,836	100	%	$	3,533,198	100	%

As noted in Table 6 above, the loan portfolio at September 30, 2022, was 78% commercial-based and 22% retail-based. Commercial-based loans are considered to have more inherent risk of default than retail-based loans, in part because of the broader list of factors that could impact a commercial borrower negatively. In addition, the commercial balance per borrower is typically larger than that for retail-based loans, implying higher potential losses on an individual customer basis. Credit risk on commercial-based loans is largely influenced by general economic conditions and the resulting impact on a borrower’s operations or on the value of underlying collateral, if any.

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At September 30, 2022, loans were $6.0 billion, $1.4 billion higher than December 31, 2021, largely due to the Charter acquisition (which added loans of $827 million at acquisition) and solid organic loan growth. Excluding the $827 million of loans Charter added at acquisition, loans increased $536 million (16% annualized) from year-end 2021 on solid organic growth, as well as the repurchase of approximately $100 million previously participated agricultural loans. Commercial and industrial loans continue to be the largest segment of Nicolet’s portfolio and represented 21% of the total portfolio at September 30, 2022.

Residential real estate loans of $1.2 billion grew $332 million from year-end 2021, including the Charter acquisition and organic growth, to represent 21% of total loans at September 30, 2022. Residential first mortgage loans include conventional first-lien home mortgages, while residential junior mortgage loans consist mainly of home equity lines and term loans secured by junior mortgage liens. As part of our management of residential mortgage loans, the majority of Nicolet’s long-term, fixed-rate residential first mortgage loans are sold in the secondary market with servicing rights retained. Nicolet’s mortgage loans are typically of high quality and have historically had low net charge-off rates.

Retail and other loans were up slightly ($5 million) from year-end 2021, representing approximately 1% of the total loan portfolio, and include predominantly short-term and other personal installment loans not secured by real estate.

Allowance for Credit Losses - Loans

In addition to the discussion that follows, see also Note 6, “Loans, Allowance for Credit Losses - Loans, and Credit Quality,” in the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for additional disclosures on the allowance for credit losses.

Credit risks within the loan portfolio are inherently different for each loan type as summarized under “BALANCE SHEET ANALYSIS — Loans.” A discussion of the loan portfolio credit risk can be found in the “Loans” section in Management’s Discussion and Analysis of Financial Condition and Results of Operations included in the Company’s 2021 Annual Report on Form 10-K. Credit risk is controlled and monitored through the use of lending standards, a thorough review of potential borrowers, and ongoing review of loan payment performance. Active asset quality administration, including early problem loan identification and timely resolution of problems, aids in the management of credit risk and minimization of loan losses. For additional information regarding nonperforming assets see also “BALANCE SHEET ANALYSIS – Nonperforming Assets.”

The ACL-Loans represents management’s estimate of expected credit losses in the Company’s loan portfolio at the balance sheet date. To assess the appropriateness of the ACL-Loans, management applies an allocation methodology which focuses on evaluation of qualitative and environmental factors, including but not limited to: (i) evaluation of facts and issues related to specific loans; (ii) management’s ongoing review and grading of the loan portfolio; (iii) consideration of historical loan loss and delinquency experience on each portfolio segment; (iv) trends in past due and nonaccrual loans; (v) the risk characteristics of the various loan segments; (vi) changes in the size and character of the loan portfolio; (vii) concentrations of loans to specific borrowers or industries; (viii) existing economic conditions; (ix) the fair value of underlying collateral; and (x) other qualitative and quantitative factors which could affect expected credit losses. Assessing these numerous factors involves significant judgment; therefore, management considers the ACL-Loans a critical accounting estimate.

Management allocates the ACL-Loans by pools of risk within each loan portfolio segment. The allocation methodology consists of the following components. First, a specific reserve is established for individually evaluated credit deteriorated loans, which management defines as nonaccrual credit relationships over $250,000, collateral dependent loans, purchased credit deteriorated loans, and other loans with evidence of credit deterioration. The specific reserve in the ACL-Loans for these credit deteriorated loans is equal to the aggregate collateral or discounted cash flow shortfall. Management allocates the ACL-Loans with historical loss rates by loan segment. The loss factors are measured on a quarterly basis and applied to each loan segment based on current loan balances and projected for their expected remaining life. Next, management allocates the ACL-Loans using the qualitative factors mentioned above. Consideration is given to those current qualitative or environmental factors that are likely to cause estimated credit losses as of the evaluation date to differ from the historical loss experience of each loan segment. Lastly, management considers reasonable and supportable forecasts to assess the collectability of future cash flows.

At September 30, 2022, the ACL-Loans was $60 million (representing 1.01% of period end loans) compared to $50 million at December 31, 2021 and $38 million at September 30, 2021. The increase in the ACL-Loans from year-end 2021 was mostly due to the Charter acquisition, which added $8 million of provision for the Day 2 allowance and $2 million related to purchased credit deteriorated loans. The increase in the ACL-Loans from September 30, 2021 was largely due to the acquisitions of Charter and County, which combined added $16 million of provision for the Day 2 allowance and $5 million related to purchased credit deteriorated loans. The components of the ACL-Loans are detailed further in Table 7 below.

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Table 7: Allowance for Credit Losses - Loans

	Nine Months Ended						Year Ended
(in thousands)	September 30, 2022			September 30, 2021			December 31, 2021
ACL-Loans:
Balance at beginning of period	$	49,672		$	32,173		$	32,173
ACL on PCD loans acquired	1,709			1,896			5,159
Provision for credit losses	9,100			4,500			12,500
Charge-offs	(442)			(436)			(513)
Recoveries	309			266			353
Net (charge-offs) recoveries	(133)			(170)			(160)
Balance at end of period	$	60,348		$	38,399		$	49,672
Net loan (charge-offs) recoveries:
Commercial & industrial	$	(49)		$	(31)		$	50
Owner-occupied CRE	(36)			—			—
Agricultural	—			(48)			(48)
CRE investment	169			(2)			(2)
Construction & land development	—			—			—
Residential construction	—			—			—
Residential first mortgage	(58)			(34)			(93)
Residential junior mortgage	9			4			4
Retail & other	(168)			(59)			(71)
Total net (charge-offs) recoveries	$	(133)		$	(170)		$	(160)
Ratios:
ACL-Loans to total loans	1.01		%	1.09		%	1.07		%
Net charge-offs to average loans, annualized	0.00		%	0.01		%	0.01		%

Nonperforming Assets

As part of its overall credit risk management process, management is committed to an aggressive problem loan identification philosophy. This philosophy has been implemented through the ongoing monitoring and review of all pools of risk in the loan portfolio to identify problem loans early and minimize the risk of loss. Management continues to actively work with customers and monitor credit risk from the ongoing disruptions related to the pandemic, as well as economic, political, and social turmoil. See also Note 6, “Loans, Allowance for Credit Losses - Loans, and Credit Quality” of the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for further disclosures on credit quality. For additional information see also “BALANCE SHEET ANALYSIS – Loans” and “BALANCE SHEET ANALYSIS – Allowance for Credit Losses-Loans.”

Nonperforming loans are considered one indicator of potential future loan losses. Nonperforming loans are defined as nonaccrual loans and loans 90 days or more past due but still accruing interest. Loans are generally placed on nonaccrual status when contractually past due 90 days or more as to interest or principal payments. Additionally, whenever management becomes aware of facts or circumstances that may adversely impact the collectability of principal or interest on loans, it is management’s practice to place such loans on nonaccrual status immediately. Nonperforming assets include nonperforming loans and other real estate owned (“OREO”). At September 30, 2022, nonperforming assets were $40 million and represented 0.45% of total assets, compared to $56 million or 0.73% of total assets at December 31, 2021.

The level of potential problem loans is another predominant factor in determining the relative level of risk in the loan portfolio and in determining the appropriate level of the ACL-Loans. Potential problem loans are generally defined by management to include loans rated as Substandard by management but that are in performing status; however, there are circumstances present which might adversely affect the ability of the borrower to comply with present repayment terms. The decision of management to include performing loans in potential problem loans does not necessarily mean that Nicolet expects losses to occur, but that management recognizes a higher degree of risk associated with these loans. The loans that have been reported as potential problem loans are predominantly commercial-based loans covering a diverse range of businesses and real estate property types. Potential problem loans were $46 million (0.8% of loans) and $53 million (1.1% of loans) at September 30, 2022 and December 31, 2021, respectively. Potential problem loans require heightened management review given the pace at which a credit may deteriorate, the potential duration of asset quality stress, and uncertainty around the magnitude and scope of economic stress that may be felt by Nicolet’s customers and on underlying real estate values.

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Table 8: Nonperforming Assets

(in thousands)	September 30, 2022			December 31, 2021			September 30, 2021
Nonperforming loans:
Commercial & industrial	$	3,052		$	1,908		$	1,778
Owner-occupied CRE	5,806			4,220			2,990
Agricultural	20,646			28,367			1,782
Commercial	29,504			34,495			6,550
CRE investment	3,343			4,119			4,249
Construction & land development	794			1,071			1,093
Commercial real estate	4,137			5,190			5,342
Commercial-based loans	33,641			39,685			11,892
Residential construction	—			—			—
Residential first mortgage	4,309			4,132			4,495
Residential junior mortgage	277			243			232
Residential real estate	4,586			4,375			4,727
Retail & other	99			94			96
Retail-based loans	4,685			4,469			4,823
Total nonaccrual loans	38,326			44,154			16,715
Accruing loans past due 90 days or more	—			—			—
Total nonperforming loans	$	38,326		$	44,154		$	16,715
Nonaccrual loans (included above) covered by guarantees	$	5,493		$	6,776		$	1,729
OREO:
Commercial real estate owned	$	628		$	1,549		$	1,219
Residential real estate owned	—			99			355
Bank property real estate owned	1,506			10,307			2,895
Total OREO	2,134			11,955			4,469
Total nonperforming assets	$	40,460		$	56,109		$	21,184
Performing troubled debt restructurings	$	—		$	5,443		$	2,103
Ratios:
Nonperforming loans to total loans	0.64		%	0.96		%	0.47		%
Nonperforming assets to total loans plus OREO	0.68		%	1.21		%	0.60		%
Nonperforming assets to total assets	0.45		%	0.73		%	0.33		%
ACL-Loans to nonperforming loans	157		%	112		%	230		%

Deposits

Deposits represent Nicolet’s largest source of funds. Total deposits of $7.4 billion at September 30, 2022, increased $930 million from December 31, 2021, primarily due to the Charter acquisition, and included a $735 million increase in core customer deposits and a $195 million increase in brokered deposits. Compared to September 30, 2021, total deposits increased $2.0 billion (36%), largely due to the Charter and County acquisitions. The deposit composition is presented in Table 9 below.

Table 9: Period End Deposit Composition

	September 30, 2022				December 31, 2021				September 30, 2021
(in thousands)	Amount		% of Total		Amount		% of Total		Amount		% of Total
Noninterest-bearing demand	$	2,477,507	33	%	$	1,975,705	31	%	$	1,852,119	34	%
Money market and interest-bearing demand	3,012,405		41	%	2,834,824		44	%	2,154,557		40	%
Savings	939,832		13	%	803,197		12	%	775,281		14	%
Time	966,158		13	%	852,190		13	%	646,817		12	%
Total deposits	$	7,395,902	100	%	$	6,465,916	100	%	$	5,428,774	100	%
Brokered transaction accounts	$	252,891	3	%	$	234,306	4	%	$	152,858	3	%
Brokered and listed time deposits	386,101		5	%	209,857		3	%	204,202		4	%
Total brokered deposits	$	638,992	8	%	$	444,163	7	%	$	357,060	7	%
Customer transaction accounts	$	6,176,853	84	%	$	5,379,420	83	%	$	4,629,099	85	%
Customer time deposits	580,057		8	%	642,333		10	%	442,615		8	%
Total customer deposits (core)	$	6,756,910	92	%	$	6,021,753	93	%	$	5,071,714	93	%

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Lending-Related Commitments

As of September 30, 2022 and December 31, 2021, Nicolet had the following off-balance sheet lending-related commitments.

Table 10: Commitments

(in thousands)	September 30, 2022		December 31, 2021
Commitments to extend credit	$	1,854,064	$	1,433,881
Financial standby letters of credit	26,250		13,562
Performance standby letters of credit	9,059		7,336

Interest rate lock commitments to originate residential mortgage loans held for sale (included above in commitments to extend credit) and forward commitments to sell residential mortgage loans held for sale are considered derivative instruments (“mortgage derivatives”) and the notional amounts represented $12 million and $10 million, respectively, at September 30, 2022. In comparison, interest rate lock commitments to originate residential mortgage loans held for sale and forward commitments to sell residential mortgage loans held for sale represented $50 million and $1 million, respectively, at December 31, 2021. The net fair value of these mortgage derivatives combined was a gain of $121,000 at September 30, 2022 compared to a gain of $149,000 at December 31, 2021.

Liquidity Management

Liquidity management refers to the ability to ensure that cash is available in a timely and cost-effective manner to meet cash flow requirements of depositors and borrowers and to meet other commitments as they fall due, including the ability to service debt, invest in subsidiaries, repurchase common stock, and satisfy other operating requirements.

Funds are available from a number of basic banking activity sources including, but not limited to, the core deposit base; repayment and maturity of loans; investment securities calls, maturities, and sales; and procurement of additional brokered deposits or other wholesale funding. At September 30, 2022, approximately 48% of the $1.6 billion investment securities portfolio was pledged as collateral to secure public deposits, as applicable, and for liquidity or other purposes as required by regulation. Additional funding sources at September 30, 2022, consist of available and unused Federal funds lines, borrowing capacity at the FHLB of $554 million, and borrowing capacity in the brokered deposit market.

Management is committed to the Parent Company being a source of strength to the Bank and its other subsidiaries, and therefore, regularly evaluates capital and liquidity positions of the Parent Company in light of current and projected needs, growth or strategies. The Parent Company uses cash for normal expenses, debt service requirements, and when opportune, for common stock repurchases, repayment of debt, or investment in other strategic actions such as mergers or acquisitions. At September 30, 2022, the Parent Company had $38 million in cash. Additional cash sources available to the Parent Company include access to the public or private markets to issue new equity, subordinated notes or other debt. During 2021, Nicolet completed the private placement of $100 million in fixed-to-floating rate subordinated notes (the “Notes”) due in 2031. (See Note 8, “Short and Long-Term Borrowings” of the Notes to Unaudited Consolidated Financial Statements under Part I, Item 1, for additional information on the Notes). Dividends from the Bank and, to a lesser extent, stock option exercises, also represent significant sources of cash flows for the Parent Company.

Cash and cash equivalents at September 30, 2022 and December 31, 2021 were $438 million and $595 million, respectively. The decrease in cash and cash equivalents since year-end 2021 included $87 million net cash provided by operating activities (mostly earnings), $382 million net cash used in investing activities (with strong loan growth and cash paid for the Charter acquisition partly offset by net cash received from the Birmingham branch sale), and $137 million net cash provided by financing activities (mostly deposit and short-term borrowings partly offset by cash outflows for common stock repurchases). Management believes its liquidity resources were sufficient as of September 30, 2022 to fund loans, accommodate deposit cycles and trends, and to meet other cash needs as necessary.

Interest Rate Sensitivity Management and Impact of Inflation

A reasonable balance between interest rate risk, credit risk, liquidity risk and maintenance of yield, is highly important to Nicolet’s business success and profitability. As an ongoing part of our financial strategy and risk management, we attempt to understand and manage the impact of fluctuations in market interest rates on our net interest income. The consolidated balance sheet consists mainly of interest-earning assets (loans, investments and cash) which are primarily funded by interest-bearing liabilities (deposits and other borrowings). Such financial instruments have varying levels of sensitivity to changes in market rates of interest. Market rates are highly sensitive to many factors beyond our control, including but not limited to general economic conditions and policies of governmental and regulatory authorities. Our operating income and net income depends, to a substantial extent, on “rate spread” (i.e., the difference between the income earned on loans, investments and other earning assets and the interest expense paid to obtain deposits and other funding liabilities).

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Asset-liability management policies establish guidelines for acceptable limits on the sensitivity to changes in interest rates on earnings and market value of assets and liabilities. Such policies are set and monitored by management and the board of directors’ Asset and Liability Committee.

To understand and manage the impact of fluctuations in market interest rates on net interest income, we measure our overall interest rate sensitivity through a net interest income analysis, which calculates the change in net interest income in the event of hypothetical changes in interest rates under different scenarios versus a baseline scenario. Such scenarios can involve static balance sheets, balance sheets with projected growth, parallel (or non-parallel) yield curve slope changes, immediate or gradual changes in market interest rates, and one-year or longer time horizons. The simulation modeling uses assumptions involving market spreads, prepayments of rate-sensitive instruments, renewal rates on maturing or new loans, deposit retention rates, and other assumptions.

Among other scenarios, we assessed the impact on net interest income in the event of a gradual +/-100 bps and +/-200 bps change in market rates (parallel to the change in prime rate) over a one-year time horizon to a static (flat) balance sheet. The results provided include the liquidity measures mentioned earlier and reflect the changed interest rate environment. The interest rate scenarios are used for analytical purposes only and do not necessarily represent management’s view of future market interest rate movements. Based on financial data at September 30, 2022 and December 31, 2021, the projected changes in net interest income over a one-year time horizon, versus the baseline, are presented in Table 11 below. The results are within Nicolet’s guidelines of not greater than -10% for +/- 100 bps and not greater than -15% for +/- 200 bps.

Table 11: Interest Rate Sensitivity

	September 30, 2022		December 31, 2021
200 bps decrease in interest rates	(1.7)	%	(0.3)	%
100 bps decrease in interest rates	(0.7)	%	(0.3)	%
100 bps increase in interest rates	0.5	%	(0.1)	%
200 bps increase in interest rates	1.1	%	(0.3)	%

Actual results may differ from these simulated results due to timing, magnitude and frequency of interest rate changes, as well as changes in market conditions and their impact on customer behavior and management strategies.

The effect of inflation on a financial institution differs significantly from the effect on an industrial company. While a financial institution’s operating expenses, particularly salary and employee benefits, are affected by general inflation, the asset and liability structure of a financial institution consists largely of monetary items. Monetary items, such as cash, investments, loans, deposits and other borrowings, are those assets and liabilities which are or will be converted into a fixed number of dollars regardless of changes in prices. As a result, changes in interest rates have a more significant impact on a financial institution’s performance than does general inflation. Inflation may also impact the Bank’s customers, businesses and consumers and their ability or willingness to invest, save or spend, and perhaps on their ability to repay loans. As such, there would likely be impacts on the general appetite for banking products and the credit health of the Bank’s customer base.

Capital

Management regularly reviews the adequacy of its capital to ensure that sufficient capital is available for current and future needs and is in compliance with regulatory guidelines. The capital position and capital strategies are actively reviewed in light of perceived business risks associated with current and prospective earning levels, liquidity, asset quality, economic conditions in the markets served, and level of returns available to shareholders. Management intends to maintain an optimal capital and leverage mix for growth and shareholder return. For details on the change in capital see “BALANCE SHEET ANALYSIS.”

The Company’s and the Bank’s regulatory capital ratios remain above minimum regulatory ratios, including the capital conservation buffer. At September 30, 2022, the Bank’s regulatory capital ratios qualify the Bank as well-capitalized under the prompt-corrective action framework. This strong base of capital has allowed Nicolet to be opportunistic in the current environment and in strategic growth. A summary of the Company’s and the Bank’s regulatory capital amounts and ratios, as well as selected capital metrics are presented in the following table.

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Table 12: Capital

	At or for the Nine Months Ended			At or for the Year Ended
($ in thousands)	September 30, 2022			December 31, 2021
Company Stock Repurchases: *
Common stock repurchased during the period (dollars)	$	60,697		$	61,464
Common stock repurchased during the period (full shares)	661,662			793,064
Company Risk-Based Capital:
Total risk-based capital	$	855,119		$	793,410
Tier 1 risk-based capital	651,016			604,199
Common equity Tier 1 capital	613,284			567,095
Total capital ratio	12.0		%	13.8		%
Tier 1 capital ratio	9.2		%	10.5		%
Common equity tier 1 capital ratio	8.6		%	9.9		%
Tier 1 leverage ratio	8.6		%	9.4		%
Bank Risk-Based Capital:
Total risk-based capital	$	801,952		$	700,869
Tier 1 risk-based capital	750,572			664,688
Common equity Tier 1 capital	750,572			664,688
Total capital ratio	11.3		%	12.2		%
Tier 1 capital ratio	10.6		%	11.6		%
Common equity tier 1 capital ratio	10.6		%	11.6		%
Tier 1 leverage ratio	10.0		%	10.3		%
* Reflects common stock repurchased under board of director authorizations for the common stock repurchase program.

In managing capital for optimal return, we evaluate capital sources and uses, pricing and availability of our stock in the market, and alternative uses of capital (such as the level of organic growth or acquisition opportunities) in light of strategic plans. During the first nine months of 2022, $61 million was utilized to repurchase and cancel 661,662 shares of common stock, pursuant to our common stock repurchase program. At September 30, 2022, there remains $48 million authorized under this repurchase program, as modified, to be utilized from time-to-time to repurchase shares in the open market, through block transactions or in private transactions.

Critical Accounting Estimates

In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ significantly from those estimates. Estimates that are particularly susceptible to significant change include the determination of the allowance for credit losses, the determination and assessment of deferred tax assets and liabilities, and the valuation of loans acquired in acquisition transactions. A discussion of these estimates can be found in the “Critical Accounting Estimates” section in Management’s Discussion and Analysis of Financial Condition and Results of Operations included in the Company’s 2021 Annual Report on Form 10-K. There have been no changes in the Company’s determination of critical accounting policies and estimates since December 31, 2021.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes in our market risk at September 30, 2022, from that presented in our 2021 Annual Report on Form 10-K. See section “Interest Rate Sensitivity Management and Impact of Inflation” within Management’s Discussion and Analysis of Financial Condition and Results of Operations under Part I, Item 2, for our interest rate sensitivity position at September 30, 2022.

ITEM 4. CONTROLS AND PROCEDURES

(a) Disclosure Controls and Procedures. Management, under the supervision, and with the participation, of our principal executive officer and principal financial officer, evaluated our disclosure controls and procedures (as such term is defined in Exchange Act Rule 13a-15(e) and 15d-15(e)). Based upon that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report.

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(b) Changes in Internal Control Over Financial Reporting. There were no changes in the Company’s internal control over financial reporting (as such term is defined in Exchange Act Rule 13a-15(f)) during the quarter covered by this report that have materially affected, or are reasonably likely to materially affect, the Company’s internal controls over financial reporting.

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PART II – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We and our subsidiaries may be involved from time to time in various routine legal proceedings incidental to our respective businesses. Neither we nor any of our subsidiaries are currently engaged in any legal proceedings that are expected to have a material adverse effect on our results of operations or financial position.

ITEM 1A. RISK FACTORS

There have been no material changes in the risk factors previously disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

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

Issuer Purchases of Equity Securities

The following table contains information regarding purchases of Nicolet’s common stock made during third quarter 2022 by or on behalf of the Company or any “affiliated purchaser,” as defined by Rule 10b-18(a)(3) of the Exchange Act.

	Total Number of Shares Purchased (a)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs (b)
	(#)	($)		(#)	(#)
Period
July 1 – July 31, 2022	—	$	—	—
August 1 – August 31, 2022	—	$	—	—
September 1 – September 30, 2022	72	$	76.66	—
Total	72	$	76.66	—	686,000

a.During third quarter 2022, the Company withheld 72 common shares for minimum tax withholding settlements on restricted stock. These are not considered “repurchases” and, therefore, do not count against the maximum number of shares that may yet be purchased under the board of directors’ authorization.

b.The board of directors approved a common stock repurchase program which authorized, with subsequent modifications, the use of up to $276 million to repurchase outstanding shares of common stock. This common stock repurchase program was last modified on April 19, 2022, and has no expiration date. At September 30, 2022, approximately $48 million remained available under this common stock repurchase program, or approximately 686,000 shares of common stock (based upon the closing stock price of $70.44 on September 30, 2022).

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS

The following exhibits are filed herewith:

Exhibit Number	Description
2.1	Agreement and Plan of Merger By and Between Nicolet Bankshares, Inc. and Charter Bankshares, Inc., dated March 29, 2022 (1)
31.1	Certification of CEO under Section 302 of Sarbanes-Oxley Act of 2002
31.2	Certification of CFO under Section 302 of Sarbanes-Oxley Act of 2002
32.1	Certification of CEO Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of Sarbanes-Oxley Act of 2002
32.2	Certification of CFO Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of Sarbanes-Oxley Act of 2002
101.INS	The XBRL Instance Document does not appear in the Interactive Date File because its XBRL tags are embedded within the Inline XBRL document (2)
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

(1) Incorporated by reference to the exhibit of the same number in the Registrant’s Current Report on Form 8-K filed on March 30, 2022.

(2) Includes the following financial information included in the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income (Loss), (iv) the Consolidated Statements of Stockholders’ Equity, (v) the Consolidated Statements of Cash Flows, and (vi) Notes to Unaudited Consolidated Financial Statements.

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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.

	NICOLET BANKSHARES, INC.
November 1, 2022	/s/ Michael E. Daniels
	Michael E. Daniels
	President and Chief Executive Officer
November 1, 2022	/s/ H. Phillip Moore, Jr.
	H. Phillip Moore, Jr.
	Chief Financial Officer

52

EX-31.1

EXHIBIT 31.1

Certification Pursuant to 18 U.S.C.

Section 1350, as Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Michael E. Daniels, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Nicolet Bankshares, Inc. (the “registrant”);

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

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

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

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

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

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

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

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

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

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

November 1, 2022	/s/ Michael E. Daniels
	Michael E. Daniels
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

Certification Pursuant to 18 U.S.C.

Section 1350, as Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, H. Phillip Moore, Jr., certify that:

1.I have reviewed this quarterly report on Form 10-Q of Nicolet Bankshares, Inc. (the “registrant”);

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

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

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

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

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

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

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

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

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

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

November 1, 2022	/s/ H. Phillip Moore, Jr.
	H. Phillip Moore, Jr.
	Chief Financial Officer
	(Principal Financial and Accounting 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 this Quarterly Report of Nicolet Bankshares, Inc., (the “Company”) on Form 10-Q as filed with the Securities and Exchange Commission on or about the date hereof (the “Report”), I, Michael E. Daniels, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. s.1350, as adopted pursuant to s.906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

November 1, 2022	/s/ Michael E. Daniels
	Michael E. Daniels
	President and Chief Executive Officer

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 this Quarterly Report of Nicolet Bankshares, Inc., (the “Company”) on Form 10-Q as filed with the Securities and Exchange Commission on or about the date hereof (the “Report”), I, H. Phillip Moore, Jr., Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. s.1350, as adopted pursuant to s.906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

November 1, 2022	/s/ H. Phillip Moore, Jr.
	H. Phillip Moore, Jr.
	Chief Financial Officer

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Cover - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-37700
Entity Registrant Name	NICOLET BANKSHARES, INC
Entity Incorporation, State or Country Code	WI
Entity Tax Identification Number	47-0871001
Entity Address, Address Line One	111 North Washington Street
Entity Address, City or Town	Green Bay,
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	54301
City Area Code	(920)
Local Phone Number	430-1400
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	NIC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		14,676,910
Entity Central Index Key	0001174850
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022		Dec. 31, 2021
Assets
Cash and due from banks	$ 118,537		$ 209,349
Interest-earning deposits	319,745		385,943
Cash and cash equivalents	438,282	[1]	595,292
Certificates of deposit in other banks	13,510		21,920
Securities available for sale (“AFS”), at fair value	949,597		921,661
Securities held to maturity (“HTM”), at amortized cost	686,424		651,803
Other investments	79,279		44,008
Loans held for sale	3,709		6,447
Other assets held for sale	0		199,833
Loans	5,984,437		4,621,836
Allowance for credit losses - loans (“ACL-Loans”)	(60,348)		(49,672)
Loans, net	5,924,089		4,572,164
Premises and equipment, net	106,648		94,566
Bank owned life insurance (“BOLI”)	165,166		134,476
Goodwill and other intangibles, net	407,117		339,492
Accrued interest receivable and other assets	122,095		113,375
Total assets	8,895,916		7,695,037
Liabilities:
Noninterest-bearing demand deposits	2,477,507		1,975,705
Interest-bearing deposits	4,918,395		4,490,211
Total deposits	7,395,902		6,465,916
Short-term borrowings	280,000		0
Long-term borrowings	225,236		216,915
Other liabilities held for sale	0		51,586
Accrued interest payable and other liabilities	56,315		68,729
Total liabilities	7,957,453		6,803,146
Stockholders’ Equity:
Common stock	147		140
Additional paid-in capital	620,392		575,045
Retained earnings	380,263		313,604
Accumulated other comprehensive income (loss)	(62,339)		3,102
Total stockholders’ equity	938,463		891,891
Total liabilities and stockholders’ equity	$ 8,895,916		$ 7,695,037
Preferred shares authorized (no par value) (in shares)	10,000,000		10,000,000
Preferred shares issued and outstanding (in shares)	0		0
Common shares authorized (par value $0.01 per share) (in shares)	30,000,000		30,000,000
Common shares outstanding (in shares)	14,673,197		13,994,079
Common shares issued (in shares)	14,746,123		14,019,880

[1] There was no restricted cash in cash and cash equivalents at September 30, 2022, while cash and cash equivalents at September 30, 2021, included restricted cash of $1.9 million pledged as collateral on interest rate swaps. No reserve balance was required with the Federal Reserve Bank at either September 30, 2022 or September 30, 2021.

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Consolidated Balance Sheets (Parentheticals) - $ / shares	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01

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Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest income:
Loans, including loan fees	$ 63,060	$ 35,294	$ 167,313	$ 104,267
Investment securities:
Taxable	5,350	2,061	15,612	5,935
Tax-exempt	1,181	517	2,503	1,582
Other interest income	1,127	869	2,734	2,140
Total interest income	70,718	38,741	188,162	113,924
Interest expense:
Deposits	4,638	2,444	9,240	7,799
Short-term borrowings	594	0	622	0
Long-term borrowings	2,496	1,113	6,431	1,729
Total interest expense	7,728	3,557	16,293	9,528
Net interest income	62,990	35,184	171,869	104,396
Provision for credit losses	8,600	6,000	9,650	6,500
Net interest income after provision for credit losses	54,390	29,184	162,219	97,896
Noninterest income:
Mortgage income, net	1,728	4,808	7,186	17,637
BOLI income	966	572	2,667	1,658
Asset gains (losses), net	(46)	(1,187)	2,870	3,716
Other income	742	993	1,506	3,594
Total noninterest income	13,000	13,996	43,074	51,300
Noninterest expense:
Personnel	24,136	16,927	65,008	49,127
Occupancy, equipment and office	7,641	5,749	21,476	13,939
Business development and marketing	2,281	1,654	6,169	3,853
Data processing	3,664	2,939	10,647	8,408
Intangibles amortization	1,628	758	4,399	2,400
FDIC assessments	480	480	1,440	1,555
Merger-related expense	519	2,793	1,172	3,449
Other expense	2,218	1,761	6,344	7,158
Total noninterest expense	42,567	33,061	116,655	89,889
Income before income tax expense	24,823	10,119	88,638	59,307
Income tax expense	6,313	2,295	21,979	14,960
Net income	$ 18,510	$ 7,824	$ 66,659	$ 44,347
Earnings per common share:
Basic (in dollars per share)	$ 1.33	$ 0.75	$ 4.88	$ 4.39
Diluted (in dollars per share)	$ 1.29	$ 0.73	$ 4.72	$ 4.22
Weighted average common shares outstanding:
Basic (in shares)	13,890,066	10,391,896	13,647,973	10,098,492
Diluted (in shares)	14,310,275	10,775,591	14,126,772	10,503,163
Trust services fee income
Noninterest income:
Fees and commissions	$ 1,969	$ 2,043	$ 5,984	$ 5,724
Brokerage fee income
Noninterest income:
Fees and commissions	3,040	3,154	9,716	8,938
Service charges on deposit accounts
Noninterest income:
Fees and commissions	1,589	1,314	4,602	3,541
Card interchange income
Noninterest income:
Fees and commissions	$ 3,012	$ 2,299	$ 8,543	$ 6,492

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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 18,510	$ 7,824	$ 66,659	$ 44,347
Unrealized gains (losses) on securities AFS:
Net unrealized holding gains (losses)	(26,162)	(3,074)	(89,630)	(8,581)
Net realized (gains) losses included in income	0	13	(15)	13
Income tax (expense) benefit	7,064	827	24,204	2,313
Other comprehensive income (loss)	(19,098)	(2,234)	(65,441)	(6,255)
Comprehensive income (loss)	$ (588)	$ 5,590	$ 1,218	$ 38,092

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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2020	$ 539,189	$ 100	$ 273,390	$ 252,952	$ 12,747
Comprehensive income:
Net income	44,347			44,347
Other comprehensive income (loss)	(6,255)				(6,255)
Issuance of common stock in acquisition	179,434	23	179,411
Stock-based compensation expense	5,222		5,222
Exercise of stock options, net	1,386	1	1,385
Issuance of common stock	395		395
Purchase and retirement of common stock	(34,440)	(4)	(34,436)
Ending Balance at Sep. 30, 2021	729,278	120	425,367	297,299	6,492
Beginning Balance at Jun. 30, 2021	559,395	98	261,096	289,475	8,726
Comprehensive income:
Net income	7,824			7,824
Other comprehensive income (loss)	(2,234)				(2,234)
Issuance of common stock in acquisition	179,434	23	179,411
Stock-based compensation expense	1,826		1,826
Exercise of stock options, net	161	1	160
Issuance of common stock	163		163
Purchase and retirement of common stock	(17,291)	(2)	(17,289)
Ending Balance at Sep. 30, 2021	729,278	120	425,367	297,299	6,492
Beginning Balance at Dec. 31, 2021	891,891	140	575,045	313,604	3,102
Comprehensive income:
Net income	66,659			66,659
Other comprehensive income (loss)	(65,441)				(65,441)
Issuance of common stock in acquisition	98,149	13	98,136
Stock-based compensation expense	5,282		5,282
Exercise of stock options, net	2,078	1	2,077
Issuance of common stock	557		557
Purchase and retirement of common stock	(60,712)	(7)	(60,705)
Ending Balance at Sep. 30, 2022	938,463	147	620,392	380,263	(62,339)
Beginning Balance at Jun. 30, 2022	839,387	134	520,741	361,753	(43,241)
Comprehensive income:
Net income	18,510			18,510
Other comprehensive income (loss)	(19,098)				(19,098)
Issuance of common stock in acquisition	98,149	13	98,136
Stock-based compensation expense	1,329		1,329
Exercise of stock options, net	1		1
Issuance of common stock	185		185
Ending Balance at Sep. 30, 2022	$ 938,463	$ 147	$ 620,392	$ 380,263	$ (62,339)

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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021
Cash Flows From Operating Activities:
Net income		$ 66,659	$ 44,347
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization, and accretion		16,994	9,301
Provision for credit losses		9,650	6,500
Increase in cash surrender value of life insurance		(2,551)	(1,658)
Stock-based compensation expense		5,282	5,222
Asset (gains) losses, net		(2,870)	(3,716)
Gain on sale of loans held for sale, net		(4,520)	(16,289)
Net change due to:
Proceeds from sale of loans held for sale		188,093	503,405
Origination of loans held for sale		(182,962)	(485,641)
Accrued interest receivable and other assets		7,719	(6,721)
Accrued interest payable and other liabilities		(14,145)	(2,488)
Net cash provided by (used in) operating activities		87,349	52,262
Cash Flows From Investing Activities:
Net increase in loans		(537,001)	10,406
Net (increase) decrease in certificates of deposit in other banks		8,419	8,561
Purchases of securities AFS		(8,623)	(214,343)
Purchases of securities HTM		(56,479)	(20,996)
Proceeds from sales of securities AFS		23,984	15,975
Proceeds from calls and maturities of securities AFS		70,781	81,681
Proceeds from calls and maturities of securities HTM		21,378	0
Purchases of other investments		(30,327)	(4,787)
Proceeds from sales of other investments		4,014	1,534
Proceeds from redemption of BOLI		578	0
Net (increase) decrease in premises and equipment		(7,965)	(6,894)
Net (increase) decrease in other real estate and other assets		9,785	1,046
Net cash (paid) received in branch sale		147,833	0
Cash paid in business combination		(28,221)
Cash received in business combination			394,868
Net cash provided by (used in) investing activities		(381,844)	267,051
Cash Flows From Financing Activities:
Net increase (decrease) in deposits		68,428	199,698
Net increase (decrease) in short-term borrowings		147,134	0
Proceeds from long-term borrowings		0	103,953
Repayments of long-term borrowings		(20,000)	(42,559)
Purchase and retirement of common stock		(60,712)	(34,440)
Proceeds from issuance of common stock		557	395
Proceeds from exercise of stock options		2,078	1,386
Net cash provided by (used in) financing activities		137,485	228,433
Net increase (decrease) in cash and cash equivalents		(157,010)	547,746
Cash and cash equivalents:
Beginning		595,292	802,859
Ending	[1]	438,282	1,350,605
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest		19,785	9,320
Cash paid for taxes		25,660	24,116
Transfer of loans and bank premises to other real estate owned		432	302
Capitalized mortgage servicing rights		2,127	3,191
Acquisitions:
Fair value of assets acquired		1,118,000	1,556,000
Fair value of liabilities assumed		1,034,000	1,409,000
Net assets acquired		$ 84,000	$ 147,000

[1] There was no restricted cash in cash and cash equivalents at September 30, 2022, while cash and cash equivalents at September 30, 2021, included restricted cash of $1.9 million pledged as collateral on interest rate swaps. No reserve balance was required with the Federal Reserve Bank at either September 30, 2022 or September 30, 2021.

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Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Statement of Cash Flows [Abstract]
Restricted cash and cash equivalents	$ 0.0	$ 1.9

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Basis of Presentation

9 Months Ended

Sep. 30, 2022

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

General

In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments necessary to present fairly the consolidated balance sheets, statements of income, comprehensive income (loss), changes in stockholders’ equity and cash flows of Nicolet Bankshares, Inc. (the “Company” or “Nicolet”) and its subsidiaries, as of and for the periods presented, and all such adjustments are of a normal recurring nature. All material intercompany transactions and balances have been eliminated. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the entire year.

These interim consolidated financial statements have been prepared according to the rules and regulations of the Securities and Exchange Commission and, therefore, certain information and footnote disclosures normally presented in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been omitted or abbreviated. These consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Critical Accounting Policies and Estimates

Preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Estimates are used in accounting for, among other items, the allowance for credit losses, valuation of loans in acquisition transactions, useful lives for depreciation and amortization, fair value of financial instruments, impairment calculations, valuation of deferred tax assets, uncertain income tax positions and contingencies. Estimates that are particularly susceptible to significant change for the Company include the determination of the allowance for credit losses, the determination and assessment of deferred tax assets and liabilities, and the valuation of loans acquired in acquisition transactions; therefore, these are critical accounting policies. Factors that may cause sensitivity to the aforementioned estimates include but are not limited to: external market factors such as market interest rates and employment rates, changes to operating policies and procedures, changes in applicable banking or tax regulations, and changes to deferred tax estimates. Actual results may ultimately differ from estimates, although management does not generally believe such differences would materially affect the consolidated financial statements in any individual reporting period presented.

There have been no material changes or developments with respect to the assumptions or methodologies that the Company uses when applying what management believes are critical accounting policies and developing critical accounting estimates as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Future Accounting Pronouncements

In March 2022, the FASB issued ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings (“TDRs”) and Vintage Disclosures. This ASU eliminates the accounting guidance for TDRs by creditors, while enhancing the disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. The ASU also requires public business entities to expand the vintage disclosures to include gross charge-offs by year of origination. The updated guidance is effective for fiscal years beginning after December 15, 2022, with early adoption permitted. Adoption of this amendment is not expected to have a material impact on the Company’s consolidated financial statements; though, it will result in new disclosures of gross charge-offs by year of origination and on the types of loan modifications to borrowers experiencing financial difficulties. Current TDR disclosures will be also removed.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. It provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The updated guidance is effective for all entities as of March 12, 2020 through December 31, 2022. The Company continues to work through the cessation of LIBOR, including the modification of its loans and other financial instruments with attributes that are either directly or indirectly influenced by LIBOR. The Company expects to utilize the reference rate reform transition guidance, as applicable, and does not expect such adoption to have a material impact on its consolidated financial statements or financial disclosures. The Company will continue to assess the impact as the reference rate transition approaches June 30, 2023.

Reclassifications

Certain amounts in the 2021 consolidated financial statements have been reclassified to conform to the 2022 presentation. These reclassifications were not material and did not impact previously reported net income or comprehensive income.

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Acquisitions

9 Months Ended

Sep. 30, 2022

Business Combination and Asset Acquisition [Abstract]

Acquisitions

Acquisitions

Completed Acquisitions:

Charter Bankshares, Inc. (“Charter”): On August 26, 2022, Nicolet completed its merger with Charter, pursuant to the Agreement and Plan of Merger dated March 29, 2022 (the “Charter Merger Agreement”), at which time Charter merged with and into Nicolet, and Charter Bank, the wholly owned bank subsidiary of Charter, was merged with and into Nicolet National Bank (the “Bank”), the wholly owned bank subsidiary of Nicolet.

Pursuant to the Charter Merger Agreement, each share of Charter common stock issued and outstanding immediately prior to the effective time of the merger was converted into the right to receive 15.458 shares of Nicolet common stock and $475 in cash. As a result, Nicolet issued approximately 1.26 million shares of Nicolet common stock for stock consideration of $98 million and cash consideration of $39 million, for a total purchase price of $137 million. With the Charter merger, Nicolet expanded to Western Wisconsin and Minnesota.

A summary of the assets acquired and liabilities assumed in the Charter transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from Charter		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	10	$	—	$	10
Investment securities	218		—		218
Loans	848		(21)		827
ACL-Loans	(9)		7		(2)
Premises and equipment	9		1		10
BOLI	29		—		29
Core deposit intangible	—		19		19
Other assets	5		2		7
Total assets	$	1,110	$	8	$	1,118
Liabilities Assumed:
Deposits	$	869	$	1	$	870
Borrowings	161		—		161
Other liabilities	3		—		3
Total liabilities	$	1,033	$	1	$	1,034
Net assets acquired					$	84
Purchase Price:
Nicolet common stock issued (in shares)					1,262,360
Value of Nicolet common stock consideration					$	98
Cash consideration paid					39
Total purchase price					$	137
Preliminary goodwill					$	53

The Company purchased loans through the acquisition of Charter for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (purchased credit deteriorated loans or “PCD” loans). The carrying amount of these loans at acquisition was as follows.

(In thousands)	August 26, 2022
Purchase price of PCD loans at acquisition	$	24,031
Allowance for credit losses on PCD loans at acquisition	1,709
Par value of PCD acquired loans at acquisition	$	25,740

The Company accounted for the Charter acquisition under the acquisition method of accounting, and thus, the financial position and results of operations of Charter prior to the consummation date were not included in the accompanying consolidated financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective estimated fair values at the date of acquisition. The estimated fair value was determined with the assistance of third party

valuations, appraisals, and third party advisors. Goodwill arising as a result of the Charter acquisition is not deductible for tax purposes.

County Bancorp, Inc. (“County”): On December 3, 2021, Nicolet completed its merger with County, pursuant to the Agreement and Plan of Merger dated June 22, 2021 (the “County Merger Agreement”), at which time County merged with and into Nicolet, and Investors Community Bank, the wholly owned bank subsidiary of County, was merged with and into the Bank.

Pursuant to the County Merger Agreement, each share of County common stock issued and outstanding immediately prior to the effective time of the merger was converted into the right to receive, at the election of the shareholder, either cash of $37.18 or 0.48 shares of Nicolet common stock, subject to proration procedures such that 1,237,000 shares of County common stock were exchanged for cash, and the remaining shares were exchanged for Nicolet common stock. As a result, Nicolet issued approximately 2.4 million shares of Nicolet common stock for stock consideration of $176 million and cash consideration of $48 million, or a total purchases price of $224 million. With the County merger, Nicolet became the premier agriculture lender throughout Wisconsin.

A summary of the assets acquired and liabilities assumed in the County transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from County		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	20	$	—	$	20
Investment securities	301		(1)		300
Loans	1,015		(1)		1,014
ACL-Loans	(11)		8		(3)
Premises and equipment	21		(4)		17
BOLI	33		—		33
Core deposit intangible	—		7		7
Loan servicing rights	20		—		20
Other assets	6		(2)		4
Total assets	$	1,405	$	7	$	1,412
Liabilities Assumed:
Deposits	$	1,027	$	3	$	1,030
Borrowings	218		1		219
Other liabilities	8		—		8
Total liabilities	$	1,253	$	4	$	1,257
Net assets acquired					$	155
Purchase Price:
Nicolet common stock issued (in shares)					2,366,243
Value of Nicolet common stock consideration					$	176
Cash consideration paid					48
Total purchase price					$	224
Write-off prior investment in County					(1)
Goodwill					$	70

The Company purchased loans through the acquisition of County for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (PCD loans). The carrying amount of these loans at acquisition was as follows.

(In thousands)	December 3, 2021
Purchase price of PCD loans at acquisition	$	64,948
Allowance for credit losses on PCD loans at acquisition	3,262
Par value of PCD acquired loans at acquisition	$	68,210

The Company accounted for the County acquisition under the acquisition method of accounting, and thus, the financial position and results of operations of County prior to the consummation date were not included in the accompanying consolidated

financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective estimated fair values at the date of acquisition. The estimated fair value was determined with the assistance of third party valuations, appraisals, and third party advisors. Goodwill arising as a result of the County acquisition is not deductible for tax purposes.

Mackinac Financial Corporation (“Mackinac”): On September 3, 2021, Nicolet completed its merger with Mackinac, pursuant to the terms of the Agreement and Plan of Merger dated April 12, 2021 (the “Mackinac Merger Agreement”), at which time Mackinac merged with and into Nicolet, and mBank, the wholly owned bank subsidiary of Mackinac, was merged with and into the Bank.

Pursuant to the Mackinac Merger Agreement, Mackinac shareholders received fixed consideration of 0.22 shares of Nicolet common stock and $4.64 in cash for each share of Mackinac common stock owned, resulting in the issuance of approximately 2.3 million shares of Nicolet common stock for stock consideration of $180 million and cash consideration of $49 million, or a total purchase price of $229 million. The Mackinac merger expanded Nicolet prominently into Northern Michigan and the Upper Peninsula of Michigan, and added to Nicolet’s presence in upper northeastern Wisconsin.

A summary of the assets acquired and liabilities assumed in the Mackinac transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from Mackinac		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	448	$	—	$	448
Investment securities	104		—		104
Loans	930		10		940
ACL-Loans	(6)		4		(2)
Premises and equipment	24		(3)		21
BOLI	16		—		16
Goodwill	20		(20)		—
Other intangibles	4		3		7
Other assets	25		(3)		22
Total assets	$	1,565	$	(9)	$	1,556
Liabilities Assumed:
Deposits	$	1,365	$	1	$	1,366
Borrowings	28		1		29
Other liabilities	13		1		14
Total liabilities	$	1,406	$	3	$	1,409
Net assets acquired					$	147
Purchase Price:
Nicolet common stock issued (in shares)					2,337,230
Value of Nicolet common stock consideration					$	180
Cash consideration paid					49
Total purchase price					$	229
Write-off prior investment in Mackinac					(2)
Goodwill					$	84

The Company purchased loans through the acquisition of Mackinac for which there was, at the date of acquisition, more than insignificant deterioration of credit quality since origination (PCD loans). The carrying amount of these loans at acquisition was as follows.

(In thousands)	September 3, 2021
Purchase price of PCD loans at acquisition	$	10,605
Allowance for credit losses on PCD loans at acquisition	1,896
Par value of PCD acquired loans at acquisition	$	12,501

The Company accounted for the Mackinac acquisition under the acquisition method of accounting, and thus, the financial position and results of operations of Mackinac prior to the consummation date were not included in the accompanying

consolidated financial statements. The accounting required assets purchased and liabilities assumed to be recorded at their respective estimated fair values at the date of acquisition. The estimated fair value was determined with the assistance of third party valuations, appraisals, and third party advisors. Goodwill arising as a result of the Mackinac acquisition is not deductible for tax purposes.

Summary Unaudited Pro Forma Information: The following unaudited pro forma information is presented for illustrative purposes only, and gives effect to the acquisitions of County and Mackinac as if the acquisitions had occurred on January 1, 2021, the beginning of the earliest period presented. The pro forma information should not be relied upon as being indicative of the historical results of operations the companies would have had if the acquisitions had occurred before such periods or the future results of operations that the companies will experience as a result of the mergers. The pro forma information, although helpful in illustrating the financial characteristics of the combined company under one set of assumptions, does not reflect the benefits of expected cost savings, opportunities to earn additional revenue, the impact of restructuring and merger-related expenses, or other factors that may result as a consequence of the mergers and, accordingly, does not attempt to predict or suggest future results.

	Three Months Ended		Nine Months Ended
(In thousands, except per share data)	September 30, 2021		September 30, 2021
Total revenue, net of interest expense	$	84,802	$	241,287
Net income	$	16,470	$	62,243
Diluted earnings per common share	$	1.06	$	4.09

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Earnings per Common Share

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Earnings per Common Share

Earnings per Common Share

Basic earnings per common share are calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per common share are calculated by dividing net income by the weighted average number of shares adjusted for the dilutive effect of common stock awards (outstanding stock options and unvested restricted stock), if any. Presented below are the calculations for basic and diluted earnings per common share.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2022		2021		2022		2021
Net income	$	18,510	$	7,824	$	66,659	$	44,347
Weighted average common shares outstanding	13,890		10,392		13,648		10,098
Effect of dilutive common stock awards	420		384		479		405
Diluted weighted average common shares outstanding	14,310		10,776		14,127		10,503
Basic earnings per common share*	$	1.33	$	0.75	$	4.88	$	4.39
Diluted earnings per common share*	$	1.29	$	0.73	$	4.72	$	4.22

*Cumulative quarterly per share performance may not equal annual per share totals due to the effects of the amount and timing of capital increases. When computing earnings per share for an interim period, the denominator is based on the weighted average shares outstanding during the interim period, and not on an annualized weighted average basis. Accordingly, the sum of the earnings per share data for the quarters will not necessarily equal the year to date earnings per share data.

For the three months ended September 30, 2022 and 2021, respectively, options to purchase approximately 0.2 million shares are excluded from the calculation of diluted earnings per common share as the effect of their exercise would have been anti-dilutive. For the nine months ended September 30, 2022 and 2021, respectively, options to purchase approximately 0.1 million shares are excluded from the calculation of diluted earnings per common share as the effect of their exercise would have been anti-dilutive.

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation The Company may grant stock options and restricted stock under its stock-based compensation plans to certain officers, employees and directors. These plans are administered by a committee of the Board of Directors, and at September 30, 2022, approximately 0.7 million shares were available for grant under these stock-based compensation plans.

A Black-Scholes model is utilized to estimate the fair value of stock option grants, while the market price of the Company’s stock at the date of grant is used to estimate the fair value of restricted stock awards. The weighted average assumptions used in the Black-Scholes model for valuing stock option grants for the nine months ended September 30, 2022 and 2021 were as follows.

	Nine Months Ended September 30,
	2022			2021
Dividend yield	—		%	—		%
Expected volatility	30		%	30		%
Risk-free interest rate	3.03		%	1.16		%
Expected average life	7 years			7 years
Weighted average per share fair value of options	$	30.99		$	26.55

A summary of the Company’s stock option activity is summarized below.

Stock Options	Option Shares Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Life (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding - December 31, 2021	1,833,246	$	57.69
Granted	132,929	81.04
Exercise of stock options *	(65,661)	41.26
Forfeited	(8,500)	77.62
Outstanding - September 30, 2022	1,892,014	$	59.81	6.2	$	24,920
Exercisable - September 30, 2022	1,207,585	$	50.84	4.9	$	24,324

* The terms of the stock option agreements permit having a number of shares of stock withheld, the fair market value of which as of the date of exercise is sufficient to satisfy the exercise price and/or tax withholding requirements. For the nine months ended September 30, 2022, 6,073 such shares were withheld by the Company.

Intrinsic value represents the amount by which the fair market value of the underlying stock exceeds the exercise price of the stock options. The intrinsic value of options exercised for the nine months ended September 30, 2022 and 2021 was approximately $3.3 million and $1.7 million, respectively.

A summary of the Company’s restricted stock activity is summarized below.

Restricted Stock	Weighted Average Grant Date Fair Value		Restricted Shares Outstanding
Outstanding - December 31, 2021	$	71.42	25,801
Granted	75.99		60,852
Vested *	71.51		(13,127)
Forfeited	56.01		(600)
Outstanding - September 30, 2022	$	75.34	72,926

* The terms of the restricted stock agreements permit the surrender of shares to the Company upon vesting in order to satisfy applicable tax withholding requirements at the minimum statutory withholding rate, and accordingly, 465 shares were surrendered during the nine months ended September 30, 2022.

The Company recognized approximately $4.6 million and $4.5 million of stock-based compensation expense (included in personnel on the consolidated statements of income) for the nine months ended September 30, 2022 and 2021, respectively, associated with its common stock awards granted to officers and employees. In addition, during the nine months ended September 30, 2022, the Company recognized approximately $0.7 million of director expense (included in other expense on the consolidated statements of income) for restricted stock grants totaling 8,852 shares with immediate vesting to directors, while during the first nine months of 2021, the Company recognized approximately $0.7 million of director expense for restricted stock grants totaling 9,595 shares with immediate vesting to directors, in each case representing the annual stock retainer fee paid to external board members for that year. As of September 30, 2022, there was approximately $19.9 million of unrecognized compensation cost related to equity award grants, which is expected to be recognized over the remaining vesting period of approximately four years. The Company recognized a tax benefit of approximately $0.4 million and $0.3 million for the nine months ended September 30, 2022 and 2021, respectively, for the tax impact of stock option exercises and vesting of restricted stock.

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Securities and Other Investments

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Securities and Other Investments

Securities and Other Investments

Securities

Securities are classified as AFS or HTM on the consolidated balance sheets at the time of purchase. AFS securities include those securities that the Company intends to hold for an indefinite period of time, but not necessarily to maturity, and are carried at fair value on the consolidated balance sheets. HTM securities include those securities which the Company has both the positive intent and ability to hold to maturity, and are carried at amortized cost on the consolidated balance sheets. Premiums and discounts on investment securities are amortized or accreted into interest income over the estimated life of the related securities using the effective interest method.

The amortized cost and fair value of securities AFS and HTM are summarized as follows.

	September 30, 2022
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	194,295	$	—	$	9,532	$	184,763	19	%
State, county and municipals	454,740		32		42,908		411,864		43	%
Mortgage-backed securities	239,430		1		25,996		213,435		23	%
Corporate debt securities	146,528		—		6,993		139,535		15	%
Total securities AFS	$	1,034,993	$	33	$	85,429	$	949,597	100	%
Securities HTM:
U.S. government agency securities	$	506,952	$	65	$	38,590	$	468,427	74	%
State, county and municipals	39,121		1		3,363		35,759		6	%
Mortgage-backed securities	140,351		—		16,898		123,453		20	%
Total securities HTM	$	686,424	$	66	$	58,851	$	627,639	100	%

	December 31, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	192,506	$	6	$	1,235	$	191,277	21	%
State, county and municipals	311,717		3,222		2,202		312,737		34	%
Mortgage-backed securities	270,017		3,090		1,845		271,262		29	%
Corporate debt securities	143,172		3,459		246		146,385		16	%
Total securities AFS	$	917,412	$	9,777	$	5,528	$	921,661	100	%
Securities HTM:
U.S. government agency securities	$	508,810	$	—	$	2,740	$	506,070	78	%
State, county and municipals	42,876		10		173		42,713		7	%
Mortgage-backed securities	100,117		89		595		99,611		15	%
Total securities HTM	$	651,803	$	99	$	3,508	$	648,394	100	%

All mortgage-backed securities included in the tables above were issued by U.S. government agencies and corporations. Investment securities with a carrying value of $786 million and $277 million, as of September 30, 2022 and December 31, 2021, respectively, were pledged as collateral to secure public deposits, as applicable, and for liquidity or other purposes as required by regulation. Accrued interest on investment securities totaled $7 million at September 30, 2022 and $5 million at December 31, 2021, and is included in accrued interest receivable and other assets on the consolidated balance sheets.

The following table presents gross unrealized losses and the related estimated fair value of investment securities for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position.

	September 30, 2022
	Less than 12 months				12 months or more				Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Number of Securities
Securities AFS:
U.S. government agency securities	$	73,427	$	3,649	$	111,307	$	5,883	$	184,734	$	9,532	18
State, county and municipals	325,212		29,803		66,031		13,105		391,243		42,908		906
Mortgage-backed securities	163,160		17,180		49,315		8,816		212,475		25,996		384
Corporate debt securities	123,488		5,218		11,668		1,775		135,156		6,993		94
Total	$	685,287	$	55,850	$	238,321	$	29,579	$	923,608	$	85,429	1,402
Securities HTM:
U.S. government agency securities	$	459,059	$	38,590	$	—	$	—	$	459,059	$	38,590	6
State, county and municipals	25,308		2,663		4,495		700		29,803		3,363		58
Mortgage-backed securities	117,168		15,696		6,285		1,202		123,453		16,898		106
Total	$	601,535	$	56,949	$	10,780	$	1,902	$	612,315	$	58,851	170

	December 31, 2021
	Less than 12 months				12 months or more				Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Number of Securities
Securities AFS:
U.S. government agency securities	$	190,432	$	1,235	$	—	$	—	$	190,432	$	1,235	11
State, county and municipals	103,950		2,119		1,777		83		105,727		2,202		132
Mortgage-backed securities	137,561		1,616		6,068		229		143,629		1,845		159
Corporate debt securities	23,267		246		—		—		23,267		246		13
Total	$	455,210	$	5,216	$	7,845	$	312	$	463,055	$	5,528	315
Securities HTM:
U.S. government agency securities	$	505,938	$	2,740	$	—	$	—	$	505,938	$	2,740	9
State, county and municipals	30,898		173		—		—		30,898		173		46
Mortgage-backed securities	69,333		595		—		—		69,333		595		72
Total	$	606,169	$	3,508	$	—	$	—	$	606,169	$	3,508	127

Quarterly, the Company evaluates securities AFS in unrealized loss positions to determine whether the impairment is due to credit-related factors or noncredit-related factors. In making this evaluation, management considers the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and the intent and ability of the Company to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value. As of September 30, 2022 and December 31, 2021, no allowance for credit losses on securities AFS was recognized. The Company does not consider its securities AFS with unrealized losses to be attributable to credit-related factors, as the unrealized losses in each category have occurred as a result of changes in noncredit-related factors such as changes in interest rates, market spreads and market conditions subsequent to purchase, not credit deterioration. Furthermore, the Company does not have the intent to sell any of these securities AFS and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost.

The Company also evaluates securities HTM quarterly to determine whether an allowance for credit losses is necessary. In making this determination, management considers the facts and circumstances of the underlying investment securities. The U.S. government agency securities include U.S. Treasury Notes which are guaranteed by the U.S. government. For the state, county and municipal securities, management considers issuer bond ratings, historical loss rates by bond ratings, whether issuers continue to make timely principal and interest payments per the contractual terms of the investment securities, internal forecasts, and whether or not such investment securities provide insurance, other credit enhancement, or are pre-refunded by the issuers. For the mortgage-backed securities, all such securities were issued by U.S. government agencies and corporations,

which are currently explicitly or implicitly guaranteed by the U.S. government and have a long history of no credit losses. Therefore, management determined no allowance for credit losses was necessary for the securities HTM.

The amortized cost and fair value of investment securities by contractual maturity are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties; as this is particularly inherent in mortgage-backed securities, these securities are not included in the maturity categories below.

As of September 30, 2022	Securities AFS				Securities HTM
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	220,008	$	214,856	$	5,032	$	5,022
Due in one year through five years	189,795		180,208		510,548		471,106
Due after five years through ten years	233,100		206,362		26,740		24,404
Due after ten years	152,660		134,736		3,753		3,654
	795,563		736,162		546,073		504,186
Mortgage-backed securities	239,430		213,435		140,351		123,453
Total investment securities	$	1,034,993	$	949,597	$	686,424	$	627,639

Proceeds and realized gains or losses from the sale of AFS securities were as follows.

	Nine Months Ended September 30,
(in thousands)	2022		2021
Gross gains	$	20	$	4
Gross losses	(5)		(17)
Gains (losses) on sales of securities AFS, net	$	15	$	(13)
Proceeds from sales of securities AFS *	$	23,984	$	15,975

* Includes proceeds of $21 million recognized on the sale of securities AFS upon acquisition of Charter for which no gain or loss was recognized in the income statement as the securities were marked to fair value through purchase accounting.

Other Investments

Other investments include “restricted” equity securities, equity securities with readily determinable fair values, and private company securities. As a member of the Federal Reserve Bank System and the Federal Home Loan Bank (“FHLB”) System, Nicolet is required to maintain an investment in the capital stock of these entities. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other exchange traded equity securities. As no ready market exists for these stocks, and they have no quoted market value, these investments are carried at cost. Also included are investments in other private companies that do not have quoted market prices, which are carried at cost less impairment charges, if any. The carrying value of other investments are summarized as follows.

	September 30, 2022		December 31, 2021
(in thousands)	Amount		Amount
Federal Reserve Bank stock	$	34,722	$	20,973
Federal Home Loan Bank (“FHLB”) stock	22,939		10,545
Equity securities with readily determinable fair values	4,482		5,660
Other investments	17,136		6,830
Total other investments	$	79,279	$	44,008

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Loans, Allowance for Credit Losses - Loans, and Credit Quality

9 Months Ended

Sep. 30, 2022

Receivables [Abstract]

Loans, Allowance for Credit Losses - Loans, and Credit Quality

Loans, Allowance for Credit Losses - Loans, and Credit Quality

The loan composition is summarized as follows.

	September 30, 2022					December 31, 2021
(in thousands)	Amount			% of Total		Amount			% of Total
Commercial & industrial	$	1,268,252		21	%	$	1,042,256		23	%
Owner-occupied commercial real estate (“CRE”)	954,933			16		787,189			17
Agricultural	1,017,498			17		794,728			17
CRE investment	1,132,951			19		818,061			18
Construction & land development	306,446			5		213,035			5
Residential construction	101,286			2		70,353			1
Residential first mortgage	970,384			16		713,983			15
Residential junior mortgage	176,428			3		131,424			3
Retail & other	56,259			1		50,807			1
Loans	5,984,437			100	%	4,621,836			100	%
Less allowance for credit losses - Loans (“ACL-Loans”)	60,348					49,672
Loans, net	$	5,924,089				$	4,572,164
Allowance for credit losses - Loans to loans	1.01		%			1.07		%

Commercial and industrial loans included less than $1 million and $25 million of PPP loans at September 30, 2022 and December 31, 2021, respectively. Accrued interest on loans totaled $14 million and $11 million at September 30, 2022 and December 31, 2021, respectively, and is included in accrued interest receivable and other assets on the consolidated balance sheets.

Allowance for Credit Losses - Loans:

The majority of the Company’s loans, commitments, and letters of credit have been granted to customers in the Company’s market area. Although the Company has a diversified loan portfolio, the credit risk in the loan portfolio is largely influenced by general economic conditions and trends of the counties and markets in which the debtors operate, and the resulting impact on the operations of borrowers or on the value of underlying collateral, if any.

A roll forward of the allowance for credit losses - loans is summarized as follows.

	Three Months Ended				Nine Months Ended				Year Ended
(in thousands)	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021		December 31, 2021
Beginning balance	$	50,655	$	32,561	$	49,672	$	32,173	$	32,173
ACL on PCD loans acquired	1,709		1,896		1,709		1,896		5,159
Provision for credit losses	8,200		4,000		9,100		4,500		12,500
Charge-offs	(300)		(107)		(442)		(436)		(513)
Recoveries	84		49		309		266		353
Net (charge-offs) recoveries	(216)		(58)		(133)		(170)		(160)
Ending balance	$	60,348	$	38,399	$	60,348	$	38,399	$	49,672

The following tables present the balance and activity in the ACL-Loans by portfolio segment.

	Nine Months Ended September 30, 2022
(in thousands)	Commercial & industrial			Owner- occupied CRE			Agricultural			CRE investment			Construction & land development			Residential construction			Residential first mortgage			Residential junior mortgage			Retail & other			Total
ACL-Loans *
Beginning balance	$	12,613		$	7,222		$	9,547		$	8,462		$	1,812		$	900		$	6,844		$	1,340		$	932		$	49,672
ACL on PCD loans	1,408			156			—			38			2			—			93			12			—			1,709
Provision	621			1,356			847			3,004			603			446			1,415			517			291			9,100
Charge-offs	(152)			(36)			—			—			—			—			(65)			—			(189)			(442)
Recoveries	103			—			—			169			—			—			7			9			21			309
Net (charge-offs) recoveries	(49)			(36)			—			169			—			—			(58)			9			(168)			(133)
Ending balance	$	14,593		$	8,698		$	10,394		$	11,673		$	2,417		$	1,346		$	8,294		$	1,878		$	1,055		$	60,348
As % of ACL-Loans	24		%	15		%	17		%	19		%	4		%	2		%	14		%	3		%	2		%	100		%

*The PPP loans are fully guaranteed by the SBA; thus, no ACL-Loans has been allocated to these loans.

	Year Ended December 31, 2021
(in thousands)	Commercial & industrial			Owner- occupied CRE			Agricultural			CRE investment			Construction & land development			Residential construction			Residential first mortgage			Residential junior mortgage			Retail & other			Total
ACL-Loans *
Beginning balance	$	11,644		$	5,872		$	1,395		$	5,441		$	984		$	421		$	4,773		$	1,086		$	557		$	32,173
ACL on PCD loans	723			1,045			2,585			415			103			—			272			13			3			5,159
Provision	196			305			5,615			2,608			725			479			1,892			237			443			12,500
Charge-offs	(242)			—			(48)			(4)			—			—			(113)			—			(106)			(513)
Recoveries	292			—			—			2			—			—			20			4			35			353
Net (charge-offs) recoveries	50			—			(48)			(2)			—			—			(93)			4			(71)			(160)
Ending balance	$	12,613		$	7,222		$	9,547		$	8,462		$	1,812		$	900		$	6,844		$	1,340		$	932		$	49,672
As % of ACL-Loans	25		%	14		%	19		%	17		%	4		%	2		%	14		%	3		%	2		%	100		%

The ACL-Loans represents management’s estimate of expected credit losses in the Company’s loan portfolio at the balance sheet date. To assess the appropriateness of the ACL-Loans, management applies an allocation methodology which focuses on evaluation of qualitative and environmental factors, including but not limited to: (i) evaluation of facts and issues related to specific loans; (ii) management’s ongoing review and grading of the loan portfolio; (iii) consideration of historical loan loss and delinquency experience on each portfolio segment; (iv) trends in past due and nonperforming loans; (v) the risk characteristics of the various loan segments; (vi) changes in the size and character of the loan portfolio; (vii) concentrations of loans to specific borrowers or industries; (viii) existing economic conditions; (ix) the fair value of underlying collateral; and (x) other qualitative and quantitative factors which could affect expected credit losses. Assessing these numerous factors involves significant judgment.

Management allocates the ACL-Loans by pools of risk within each loan portfolio segment. The allocation methodology consists of the following components. First, a specific reserve is established for individually evaluated credit-deteriorated loans, which management defines as nonaccrual credit relationships over $250,000, collateral dependent loans, purchased credit deteriorated loans, and other loans with evidence of credit deterioration. The specific reserve in the ACL-Loans for these credit deteriorated loans is equal to the aggregate collateral or discounted cash flow shortfall. Management allocates the ACL-Loans with historical loss rates by loan segment. The loss factors are measured on a quarterly basis and applied to each loan segment based on current loan balances and projected for their expected remaining life. Next, management allocates the ACL-Loans using the qualitative factors mentioned above. Consideration is given to those current qualitative or environmental factors that are likely to cause estimated credit losses as of the evaluation date to differ from the historical loss experience of each loan segment. Lastly, management considers reasonable and supportable forecasts to assess the collectability of future cash flows.

Allowance for Credit Losses-Unfunded Commitments:

In addition to the ACL-Loans, the Company has established an ACL-Unfunded commitments, classified in accrued interest payable and other liabilities on the consolidated balance sheets. This reserve is maintained at a level that management believes is sufficient to absorb losses arising from unfunded loan commitments, and is determined quarterly based on methodology similar to the methodology for determining the ACL-Loans. The reserve for unfunded commitments was $3.0 million at September 30, 2022 and $2.4 million at December 31, 2021.

Provision for Credit Losses:

The provision for credit losses is determined by the Company as the amount to be added to the ACL loss accounts for various types of financial instruments including loans, investment securities, and off-balance sheet credit exposures after net charge-offs have been deducted to bring the ACL to a level that, in management’s judgment, is necessary to absorb expected credit losses over the lives of the respective financial instruments. See Note 5 for additional information regarding the ACL related to investment securities. The following table presents the components of the provision for credit losses.

	Three Months Ended				Nine Months Ended				Year Ended
(in thousands)	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021		December 31, 2021
Provision for credit losses on:
Loans	$	8,200	$	4,000	$	9,100	$	4,500	$	12,500
Unfunded Commitments	400		2,000		550		2,000		2,400
Investment securities	—		—		—		—		—
Total	$	8,600	$	6,000	$	9,650	$	6,500	$	14,900

Collateral Dependent Loans:

A loan is considered to be collateral dependent when, based upon management’s assessment, the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. For collateral dependent loans, expected credit losses are based on the estimated fair value of the collateral at the balance sheet date, with consideration for estimated selling costs if satisfaction of the loan depends on the sale of the collateral. The following tables present collateral dependent loans by portfolio segment and collateral type, including those loans with and without a related allowance allocation.

September 30, 2022	Collateral Type
(in thousands)	Real Estate		Other Business Assets		Total		Without an Allowance		With an Allowance		Allowance Allocation
Commercial & industrial	$	—	$	3,032	$	3,032	$	1,443	$	1,589	$	661
Owner-occupied CRE	5,205		—		5,205		3,526		1,679		297
Agricultural	13,974		6,439		20,413		16,900		3,513		205
CRE investment	2,196		—		2,196		404		1,792		242
Construction & land development	685		—		685		685		—		—
Residential construction	—		—		—		—		—		—
Residential first mortgage	91		—		91		91		—		—
Residential junior mortgage	—		—		—		—		—		—
Retail & other	—		—		—		—		—		—
Total loans	$	22,151	$	9,471	$	31,622	$	23,049	$	8,573	$	1,405

December 31, 2021	Collateral Type
(in thousands)	Real Estate		Other Business Assets		Total		Without an Allowance		With an Allowance		Allowance Allocation
Commercial & industrial	$	—	$	2,296	$	2,296	$	1,842	$	454	$	258
Owner-occupied CRE	3,537		—		3,537		1,315		2,222		552
Agricultural	19,637		8,518		28,155		25,310		2,845		841
CRE investment	3,000		—		3,000		1,684		1,316		407
Construction & land development	1,038		—		1,038		655		383		211
Residential construction	—		—		—		—		—		—
Residential first mortgage	473		—		473		473		—		—
Residential junior mortgage	—		—		—		—		—		—
Retail & other	—		—		—		—		—		—
Total loans	$	27,685	$	10,814	$	38,499	$	31,279	$	7,220	$	2,269

Past Due and Nonaccrual Loans:

The following tables present past due loans by portfolio segment.

	September 30, 2022
(in thousands)	30-89 Days Past Due (accruing)			90 Days & Over or nonaccrual			Current			Total
Commercial & industrial	$	954		$	3,052		$	1,264,246		$	1,268,252
Owner-occupied CRE	513			5,806			948,614			954,933
Agricultural	—			20,646			996,852			1,017,498
CRE investment	27			3,343			1,129,581			1,132,951
Construction & land development	—			794			305,652			306,446
Residential construction	557			—			100,729			101,286
Residential first mortgage	1,621			4,309			964,454			970,384
Residential junior mortgage	249			277			175,902			176,428
Retail & other	138			99			56,022			56,259
Total loans	$	4,059		$	38,326		$	5,942,052		$	5,984,437
Percent of total loans	0.1		%	0.6		%	99.3		%	100.0		%

	December 31, 2021
(in thousands)	30-89 Days Past Due (accruing)			90 Days & Over or nonaccrual			Current			Total
Commercial & industrial	$	94		$	1,908		$	1,040,254		$	1,042,256
Owner-occupied CRE	—			4,220			782,969			787,189
Agricultural	108			28,367			766,253			794,728
CRE investment	114			4,119			813,828			818,061
Construction & land development	—			1,071			211,964			213,035
Residential construction	246			—			70,107			70,353
Residential first mortgage	2,592			4,132			707,259			713,983
Residential junior mortgage	23			243			131,158			131,424
Retail & other	115			94			50,598			50,807
Total loans	$	3,292		$	44,154		$	4,574,390		$	4,621,836
Percent of total loans	0.1		%	0.9		%	99.0		%	100.0		%

The following table presents nonaccrual loans by portfolio segment.

	September 30, 2022					December 31, 2021
(in thousands)	Nonaccrual Loans			% of Total		Nonaccrual Loans			% of Total
Commercial & industrial	$	3,052		8	%	$	1,908		4	%
Owner-occupied CRE	5,806			15		4,220			10
Agricultural	20,646			54		28,367			64
CRE investment	3,343			9		4,119			9
Construction & land development	794			2		1,071			3
Residential construction	—			—		—			—
Residential first mortgage	4,309			11		4,132			9
Residential junior mortgage	277			1		243			1
Retail & other	99			—		94			—
Nonaccrual loans	$	38,326		100	%	$	44,154		100	%
Percent of total loans	0.6		%			0.9		%

Credit Quality Information:

The following tables present total loans by risk categories and year of origination. Loans acquired from Charter, Mackinac and County have been included in the September 30, 2022 and December 31, 2021 tables based upon the actual origination date.

September 30, 2022	Amortized Cost Basis by Origination Year
(in thousands)	2022		2021		2020		2019		2018		Prior		Revolving		Revolving to Term		TOTAL
Commercial & industrial
Grades 1-4	$	254,713	$	246,195	$	108,418	$	76,355	$	52,099	$	83,341	$	349,324	$	—	$	1,170,445
Grade 5	7,187		7,423		11,052		2,084		2,734		4,344		18,807		—		53,631
Grade 6	158		1,649		675		638		453		11,972		14,718		—		30,263
Grade 7	552		352		3,384		2,666		802		1,149		5,008		—		13,913
Total	$	262,610	$	255,619	$	123,529	$	81,743	$	56,088	$	100,806	$	387,857	$	—	$	1,268,252
Owner-occupied CRE
Grades 1-4	$	128,054	$	189,922	$	111,622	$	104,840	$	93,619	$	269,617	$	7,952	$	—	$	905,626
Grade 5	2,868		4,750		2,824		2,826		3,875		14,325		172		—		31,640
Grade 6	—		—		—		2,388		—		887		—		—		3,275
Grade 7	440		414		6,244		377		85		6,832		—		—		14,392
Total	$	131,362	$	195,086	$	120,690	$	110,431	$	97,579	$	291,661	$	8,124	$	—	$	954,933
Agricultural
Grades 1-4	$	238,387	$	154,364	$	93,529	$	26,185	$	20,967	$	135,426	$	195,784	$	—	$	864,642
Grade 5	12,109		15,525		2,823		2,028		1,504		42,561		23,090		—		99,640
Grade 6	49		1,491		31		33		—		5,322		425		—		7,351
Grade 7	7,072		2,651		863		2,024		3,655		20,388		9,212		—		45,865
Total	$	257,617	$	174,031	$	97,246	$	30,270	$	26,126	$	203,697	$	228,511	$	—	$	1,017,498
CRE investment
Grades 1-4	$	167,931	$	228,709	$	195,020	$	141,749	$	79,790	$	261,027	$	13,890	$	—	$	1,088,116
Grade 5	784		1,664		5,252		3,131		983		24,997		—		—		36,811
Grade 6	—		—		—		1,183		2,029		1,078		206		—		4,496
Grade 7	—		—		—		73		249		2,991		215		—		3,528
Total	$	168,715	$	230,373	$	200,272	$	146,136	$	83,051	$	290,093	$	14,311	$	—	$	1,132,951
Construction & land development
Grades 1-4	$	82,695	$	139,561	$	15,958	$	9,979	$	27,553	$	14,936	$	14,361	$	—	$	305,043
Grade 5	40		—		—		513		—		22		—		—		575
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	34		—		—		—		—		794		—		—		828
Total	$	82,769	$	139,561	$	15,958	$	10,492	$	27,553	$	15,752	$	14,361	$	—	$	306,446
Residential construction
Grades 1-4	$	61,266	$	32,309	$	1,490	$	125	$	338	$	664	$	5,094	$	—	$	101,286
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		—		—		—		—		—
Total	$	61,266	$	32,309	$	1,490	$	125	$	338	$	664	$	5,094	$	—	$	101,286
Residential first mortgage
Grades 1-4	$	261,535	$	266,465	$	151,436	$	73,915	$	32,871	$	167,038	$	2,595	$	3	$	955,858
Grade 5	928		1,349		1,006		2,147		2,295		418		—		—		8,143
Grade 6	—		—		—		717		—		—		—		—		717
Grade 7	—		332		211		410		225		4,488		—		—		5,666
Total	$	262,463	$	268,146	$	152,653	$	77,189	$	35,391	$	171,944	$	2,595	$	3	$	970,384
Residential junior mortgage
Grades 1-4	$	7,864	$	4,875	$	5,314	$	3,227	$	1,745	$	3,439	$	144,053	$	5,293	$	175,810
Grade 5	—		—		—		—		—		144		—		—		144
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		209		—		27		—		86		152		—		474
Total	$	7,864	$	5,084	$	5,314	$	3,254	$	1,745	$	3,669	$	144,205	$	5,293	$	176,428
Retail & other
Grades 1-4	$	11,363	$	9,873	$	4,751	$	3,677	$	1,220	$	24,608	$	667	$	—	$	56,159
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		16		2		30		52		—		—		100
Total	$	11,363	$	9,873	$	4,767	$	3,679	$	1,250	$	24,660	$	667	$	—	$	56,259
Total loans	$	1,246,029	$	1,310,082	$	721,919	$	463,319	$	329,121	$	1,102,946	$	805,725	$	5,296	$	5,984,437

December 31, 2021	Amortized Cost Basis by Origination Year
(in thousands)	2021		2020		2019		2018		2017		Prior		Revolving		Revolving to Term		TOTAL
Commercial & industrial
Grades 1-4	$	282,369	$	146,131	$	99,702	$	69,478	$	50,557	$	71,247	$	288,115	$	—	$	1,007,599
Grade 5	1,685		1,905		4,369		5,809		4,860		2,097		8,408		—		29,133
Grade 6	598		54		16		687		67		91		391		—		1,904
Grade 7	—		440		692		337		976		743		432		—		3,620
Total	$	284,652	$	148,530	$	104,779	$	76,311	$	56,460	$	74,178	$	297,346	$	—	$	1,042,256
Owner-occupied CRE
Grades 1-4	$	154,578	$	94,300	$	105,226	$	92,128	$	75,583	$	202,816	$	6,945	$	—	$	731,576
Grade 5	7,753		3,019		6,529		2,543		2,515		13,905		656		—		36,920
Grade 6	—		—		1,642		—		20		805		—		—		2,467
Grade 7	—		3,124		1,914		—		3,526		6,672		990		—		16,226
Total	$	162,331	$	100,443	$	115,311	$	94,671	$	81,644	$	224,198	$	8,591	$	—	$	787,189
Agricultural
Grades 1-4	$	128,404	$	87,844	$	28,416	$	22,887	$	36,298	$	86,104	$	235,743	$	—	$	625,696
Grade 5	14,796		4,183		2,391		915		3,912		48,373		26,778		—		101,348
Grade 6	38		38		36		—		86		1,049		85		—		1,332
Grade 7	3,284		3,971		3,490		4,201		7,215		31,672		12,519		—		66,352
Total	$	146,522	$	96,036	$	34,333	$	28,003	$	47,511	$	167,198	$	275,125	$	—	$	794,728
CRE investment
Grades 1-4	$	192,274	$	139,127	$	136,306	$	56,148	$	65,026	$	162,991	$	11,289	$	—	$	763,161
Grade 5	11,081		3,001		6,497		3,945		6,726		17,527		—		—		48,777
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		456		141		1,352		3,943		231		—		6,123
Total	$	203,355	$	142,128	$	143,259	$	60,234	$	73,104	$	184,461	$	11,520	$	—	$	818,061
Construction & land development
Grades 1-4	$	81,891	$	72,415	$	12,547	$	19,511	$	1,184	$	11,274	$	10,943	$	—	$	209,765
Grade 5	640		—		521		919		—		119		—		—		2,199
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		17		1,054		—		—		1,071
Total	$	82,531	$	72,415	$	13,068	$	20,430	$	1,201	$	12,447	$	10,943	$	—	$	213,035
Residential construction
Grades 1-4	$	58,352	$	9,998	$	155	$	344	$	1,072	$	380	$	—	$	—	$	70,301
Grade 5	—		—		52		—		—		—		—		—		52
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		—		—		—		—		—
Total	$	58,352	$	9,998	$	207	$	344	$	1,072	$	380	$	—	$	—	$	70,353
Residential first mortgage
Grades 1-4	$	256,082	$	152,932	$	168,705	$	22,568	$	20,147	$	82,479	$	1,840	$	4	$	704,757
Grade 5	713		529		3,094		—		—		1,508		—		—		5,844
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		560		225		73		2,524		—		—		3,382
Total	$	256,795	$	153,461	$	172,359	$	22,793	$	20,220	$	86,511	$	1,840	$	4	$	713,983
Residential junior mortgage
Grades 1-4	$	3,194	$	3,139	$	3,021	$	1,501	$	512	$	1,969	$	115,817	$	1,426	$	130,579
Grade 5	—		—		29		—		—		—		439		—		468
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		172		—		23		44		138		—		377
Total	$	3,194	$	3,139	$	3,222	$	1,501	$	535	$	2,013	$	116,394	$	1,426	$	131,424
Retail & other
Grades 1-4	$	13,676	$	6,886	$	5,826	$	2,053	$	1,882	$	20,102	$	275	$	—	$	50,700
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		24		2		19		—		62		—		—		107
Total	$	13,676	$	6,910	$	5,828	$	2,072	$	1,882	$	20,164	$	275	$	—	$	50,807
Total loans	$	1,211,408	$	733,060	$	592,366	$	306,359	$	283,629	$	771,550	$	722,034	$	1,430	$	4,621,836

The following tables present total loans by risk categories.

	September 30, 2022
(in thousands)	Grades 1- 4			Grade 5			Grade 6			Grade 7			Total
Commercial & industrial	$	1,170,445		$	53,631		$	30,263		$	13,913		$	1,268,252
Owner-occupied CRE	905,626			31,640			3,275			14,392			954,933
Agricultural	864,642			99,640			7,351			45,865			1,017,498
CRE investment	1,088,116			36,811			4,496			3,528			1,132,951
Construction & land development	305,043			575			—			828			306,446
Residential construction	101,286			—			—			—			101,286
Residential first mortgage	955,858			8,143			717			5,666			970,384
Residential junior mortgage	175,810			144			—			474			176,428
Retail & other	56,159			—			—			100			56,259
Total loans	$	5,622,985		$	230,584		$	46,102		$	84,766		$	5,984,437
Percent of total	93.9		%	3.9		%	0.8		%	1.4		%	100.0		%

	December 31, 2021
(in thousands)	Grades 1- 4			Grade 5			Grade 6			Grade 7			Total
Commercial & industrial	$	1,007,599		$	29,133		$	1,904		$	3,620		$	1,042,256
Owner-occupied CRE	731,576			36,920			2,467			16,226			787,189
Agricultural	625,696			101,348			1,332			66,352			794,728
CRE investment	763,161			48,777			—			6,123			818,061
Construction & land development	209,765			2,199			—			1,071			213,035
Residential construction	70,301			52			—			—			70,353
Residential first mortgage	704,757			5,844			—			3,382			713,983
Residential junior mortgage	130,579			468			—			377			131,424
Retail & other	50,700			—			—			107			50,807
Total loans	$	4,294,134		$	224,741		$	5,703		$	97,258		$	4,621,836
Percent of total	92.9		%	4.9		%	0.1		%	2.1		%	100.0		%

An internal loan review function rates loans using a grading system based on different risk categories. Loans with a Substandard grade are considered to have a greater risk of loss and may be assigned allocations for loss based on specific review of the weaknesses observed in the individual credits. Such loans are monitored by the loan review function to help ensure early identification of any deterioration. A description of the loan risk categories used by the Company follows.

Grades 1-4, Pass: Credits exhibit adequate cash flows, appropriate management and financial ratios within industry norms and/or are supported by sufficient collateral. Some credits in these rating categories may require a need for monitoring but elements of concern are not severe enough to warrant an elevated rating.

Grade 5, Watch: Credits with this rating are adequately secured and performing but are being monitored due to the presence of various short-term weaknesses which may include unexpected, short-term adverse financial performance, managerial problems, potential impact of a decline in the entire industry or local economy and delinquency issues. Loans to individuals or loans supported by guarantors with marginal net worth or collateral may be included in this rating category.

Grade 6, Special Mention: Credits with this rating have potential weaknesses that, without the Company’s attention and correction may result in deterioration of repayment prospects. These assets are considered Criticized Assets. Potential weaknesses may include adverse financial trends for the borrower or industry, repeated lack of compliance with Company requests, increasing debt to net worth, serious management conditions and decreasing cash flow.

Grade 7, Substandard: Assets with this rating are characterized by the distinct possibility the Company will sustain some loss if deficiencies are not corrected. All foreclosures, liquidations, and nonaccrual loans are considered to be categorized in this rating, regardless of collateral sufficiency.

Troubled Debt Restructurings:

Loans are considered troubled debt restructurings if concessions have been granted to borrowers who are experiencing financial difficulties. The following table presents the loan composition of nonaccrual and performing TDRs.

	September 30, 2022						December 31, 2021
(in thousands)	Performing		Nonaccrual		Total		Performing		Nonaccrual		Total
Commercial & industrial	$	—	$	223	$	223	$	—	$	197	$	197
Owner-occupied CRE	—		2,639		2,639		3,466		2,888		6,354
Agricultural	—		14,181		14,181		—		16,835		16,835
CRE investment	—		299		299		918		—		918
Construction & land development	—		75		75		—		308		308
Residential first mortgage	—		13		13		913		15		928
Residential junior mortgage	—		—		—		146		—		146
Total	$	—	$	17,430	$	17,430	$	5,443	$	20,243	$	25,686

The following table presents the number of loans modified in a TDR, pre-modification loan balance, and post-modification loan balance by loan composition.

	September 30, 2022					December 31, 2021
($ in thousands)	Number of Loans	Pre-Modification Balance		Current Balance		Number of Loans	Pre-Modification Balance		Current Balance
Commercial & industrial	4	$	240	$	223	2	$	200	$	197
Owner-occupied CRE	3	5,138		2,639		6	6,913		6,354
Agricultural	26	16,237		14,181		31	17,228		16,835
CRE investment	1	301		299		1	919		918
Construction & land development	1	533		75		1	533		308
Residential first mortgage	1	17		13		2	931		928
Residential junior mortgage	—	—		—		1	166		146
Total	36	$	22,466	$	17,430	44	$	26,890	$	25,686

TDR concessions may include payment schedule modifications, interest rate concessions, maturity date extensions, bankruptcies, or some combination of these concessions. There were no loans which were classified as troubled debt restructurings during the previous twelve months that subsequently defaulted during 2021 or through September 30, 2022. As of September 30, 2022, there were no commitments to lend additional funds to debtors whose terms have been modified in troubled debt restructurings.

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Goodwill and Other Intangibles and Servicing Rights

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles and Servicing Rights

Goodwill and Other Intangibles and Servicing Rights

Management periodically reviews the carrying value of its intangible assets to determine if any impairment has occurred, in which case an impairment charge would be recorded as an expense in the period of impairment, or whether changes in circumstances have occurred that would require a revision to the remaining useful life that would affect expense prospectively. In making such determination, management evaluates whether there are any adverse qualitative factors indicating that an impairment may exist, as well as the performance, on an undiscounted basis, of the underlying operations or assets which give rise to the intangible. Management regularly monitors economic factors for potential impairment indications on the value of our franchise, stability of deposits, and the wealth client base, underlying our goodwill, core deposit intangible, and customer list intangibles, and determined no impairments were indicated. A summary of goodwill and other intangibles was as follows.

(in thousands)	September 30, 2022		December 31, 2021
Goodwill	$	369,849	$	317,189
Core deposit intangibles	34,791		19,445
Customer list intangibles	2,477		2,858
Other intangibles	37,268		22,303
Goodwill and other intangibles, net	$	407,117	$	339,492

Goodwill: A summary of goodwill was as follows. During 2022, goodwill increased due to the Charter acquisition, while during 2021, goodwill increased due to the acquisitions of Mackinac and County. See Note 2 for additional information on the Company’s acquisitions.

	Nine Months Ended		Year Ended
(in thousands)	September 30, 2022		December 31, 2021
Goodwill:
Goodwill at beginning of year	$	317,189	$	163,151
Acquisitions	52,660		154,038
Goodwill at end of period	$	369,849	$	317,189

Other intangible assets: Other intangible assets, consisting of core deposit intangibles and customer list intangibles, are amortized over their estimated finite lives. A summary of other intangible assets was as follows. During 2022, core deposit intangibles increased due to the Charter acquisition, while during 2021, core deposit intangibles increased due to the acquisitions of Mackinac and County. See Note 2 for additional information on the Company’s acquisitions.

	Nine Months Ended		Year Ended
(in thousands)	September 30, 2022		December 31, 2021
Core deposit intangibles:
Gross carrying amount	$	60,724	$	41,360
Accumulated amortization	(25,933)		(21,915)
Net book value	$	34,791	$	19,445
Additions during the period	$	19,364	$	13,595
Amortization during the period	$	4,018	$	2,987
Customer list intangibles:
Gross carrying amount	$	5,523	$	5,523
Accumulated amortization	(3,046)		(2,665)
Net book value	$	2,477	$	2,858
Amortization during the period	$	381	$	507

Mortgage servicing rights (“MSR”): Mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income, and assessed for impairment at each reporting date, with the amortization recorded in mortgage income, net, in the consolidated statements of income. Mortgage servicing rights are carried at the lower of the initial capitalized amount, net of accumulated amortization, or estimated fair value, and are included in other assets in the consolidated balance sheets. A summary of the changes in the mortgage servicing rights asset was as follows.

	Nine Months Ended			Year Ended
(in thousands)	September 30, 2022			December 31, 2021
Mortgage servicing rights asset:
MSR asset at beginning of year	$	13,636		$	10,230
Capitalized MSR	2,127			4,329
MSR asset acquired	—			1,322
Amortization during the period	(2,145)			(2,245)
MSR asset at end of period	$	13,618		$	13,636
Valuation allowance at beginning of year	$	(1,200)		$	(1,000)
Additions	—			(500)
Reversals	700			300
Valuation allowance at end of period	$	(500)		$	(1,200)
MSR asset, net	$	13,118		$	12,436
Fair value of MSR asset at end of period	$	16,740		$	15,599
Residential mortgage loans serviced for others	$	1,649,187		$	1,583,577
Net book value of MSR asset to loans serviced for others	0.80		%	0.79		%

The Company periodically evaluates its mortgage servicing rights asset for impairment. At each reporting date, impairment is assessed based on estimated fair value using estimated prepayment speeds of the underlying mortgage loans serviced and stratification based on the risk characteristics of the underlying loans (predominantly loan type and note interest rate). See Note 9 for additional information on the fair value of the MSR asset.

Loan servicing rights (“LSR”): The Company acquired an LSR asset in connection with its acquisition of County on December 3, 2021 (see Note 2 for additional information on the County acquisition). The LSR asset was $13 million at September 30, 2022, and related to approximately $553 million of unpaid principal balances of loans serviced for others. The LSR asset will

be amortized on an accelerated basis over the estimated remaining loan service period as the Company does not expect to add new loans to this servicing portfolio. See Note 9 for additional information on the fair value of the LSR asset.

The following table shows the estimated future amortization expense for amortizing intangible assets and the servicing assets. The projections are based on existing asset balances, the current interest rate environment and prepayment speeds as of September 30, 2022. The actual amortization expense the Company recognizes in any given period may be significantly different depending upon acquisition or sale activities, changes in interest rates, prepayment speeds, market conditions, regulatory requirements and events or circumstances that indicate the carrying amount of an asset may not be recoverable.

(in thousands)	Core deposit intangibles		Customer list intangibles		MSR asset		LSR asset
Year ending December 31,
2022 (remaining three months)	$	2,091	$	126	$	386	$	2,004
2023	7,589		483		2,735		6,345
2024	6,298		449		2,635		3,673
2025	5,161		449		1,884		1,020
2026	3,983		249		1,394		—
2027	3,218		166		1,394		—
Thereafter	6,451		555		3,190		—
Total	$	34,791	$	2,477	$	13,618	$	13,042

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Short and Long-Term Borrowings

9 Months Ended

Sep. 30, 2022

Debt Disclosure [Abstract]

Short and Long-Term Borrowings

Short and Long-Term Borrowings

Short-Term Borrowings:

Short-term borrowings include any borrowing with an original maturity of one year or less. At September 30, 2022, short-term borrowings included $280 million of short-term FHLB advances, comprised of $80 million due in October 2022 at a weighted average rate of 2.70% and $200 million due in September 2023 at a weighted average rate of 4.30%. The Company did not have any outstanding short-term borrowings at December 31, 2021.

Long-Term Borrowings:

Long-term borrowings include any borrowing with an original maturity greater than one year. The components of long-term borrowings were as follows.

(in thousands)	September 30, 2022		December 31, 2021
FHLB advances	$	33,000	$	25,000
Junior subordinated debentures	39,512		38,885
Subordinated notes	152,724		153,030
Total long-term borrowings	$	225,236	$	216,915

FHLB Advances: The Federal Home Loan Bank (“FHLB”) advances bear fixed rates, require interest-only monthly payments, and have maturity dates through February 2030. The weighted average rate of the FHLB advances was 1.09% at September 30, 2022 and 0.59% at December 31, 2021.

Junior Subordinated Debentures: Each of the junior subordinated debentures was issued to an underlying statutory trust (the “statutory trusts”), which issued trust preferred securities and common securities and used the proceeds from the issuance of the common and the trust preferred securities to purchase the junior subordinated debentures of the Company. The debentures represent the sole asset of the statutory trusts. All of the common securities of the statutory trusts are owned by the Company. The statutory trusts are not included in the consolidated financial statements. The net effect of all the documents entered into with respect to the trust preferred securities is that the Company, through payments on its debentures, is liable for the distributions and other payments required on the trust preferred securities. Interest on all debentures is current. Any applicable discounts (initially recorded to carry an acquired debenture at its then estimated fair value) are being accreted to interest expense over the remaining life of the debenture. All the junior subordinated debentures are currently callable and may be redeemed in part or in full, at par, plus any accrued but unpaid interest. At September 30, 2022 and December 31, 2021, approximately $38 million and $37 million, respectively, of trust preferred securities qualify as Tier 1 capital.

Subordinated Notes (the “Notes”): In July 2021, the Company completed the private placement of $100 million in fixed-to-floating rate subordinated notes due in 2031, with a fixed annual rate of 3.125% for the first five years, and will reset quarterly thereafter to the then current three-month Secured Overnight Financing Rate (“SOFR”) plus 237.5 basis points. The Notes due in 2031 are redeemable beginning July 15, 2026 and quarterly thereafter on any interest payment date.

In December 2021, Nicolet assumed two subordinated note issuances at a premium as the result of the County acquisition. One issuance was $30 million in fixed-to-floating rate subordinated notes due in 2028, with a fixed annual interest rate of 5.875% for the first five years, and will reset quarterly thereafter to the then current three-month LIBOR plus 2.88% The second issuance was $22 million in fixed-to-floating rate subordinated notes due in 2030, with a fixed annual interest rate of 7.00% for the first five years, and will reset quarterly thereafter to the then current SOFR plus 687.5 basis points. The Notes due in 2028 are redeemable beginning June 1, 2023, and quarterly thereafter on any interest payment date, while the Notes due in 2030 are redeemable beginning June 30, 2025, and quarterly thereafter on any interest payment date. All Notes qualify as Tier 2 capital for regulatory purposes.

The following table shows the breakdown of junior subordinated debentures and subordinated notes.

		As of September 30, 2022								As of December 31, 2021
(in thousands)	Maturity Date	Interest  Rate		Par		Unamortized Premium /(Discount) / Debt Issue Costs (1)		Carrying Value		Interest  Rate		Carrying Value
Junior Subordinated Debentures:
Mid-Wisconsin Statutory Trust I (2)	12/15/2035	4.72	%	$	10,310	$	(2,625)	$	7,685	1.63	%	$	7,537
Baylake Capital Trust II (3)	9/30/2036	5.02	%	16,598		(3,233)		13,365		1.57	%	13,187
First Menasha Statutory Trust (4)	3/17/2034	6.32	%	5,155		(498)		4,657		3.01	%	4,624
County Bancorp Statutory Trust II (5)	9/15/2035	4.82	%	6,186		(948)		5,238		1.73	%	5,061
County Bancorp Statutory Trust III (6)	6/15/2036	4.98	%	6,186		(1,006)		5,180		1.89	%	5,121
Fox River Valley Capital Trust (7)	5/30/2033	6.40	%	3,610		(223)		3,387		6.40	%	3,355
Total				$	48,045	$	(8,533)	$	39,512			$	38,885
Subordinated Notes:
Subordinated Notes due 2031	7/15/2031	3.13	%	$	100,000	$	(785)	$	99,215	3.13	%	$	99,057
County Subordinated Notes due 2028	6/1/2028	5.88	%	30,000		189		30,189		5.88	%	30,402
County Subordinated Notes due 2030	6/30/2030	7.00	%	22,400		920		23,320		7.00	%	23,571
Total				$	152,400	$	324	$	152,724			$	153,030

(1) Represents the remaining unamortized premium or discount on debt issuances assumed in acquisitions, and represents the unamortized debt issue costs for the debt issued directly by Nicolet.

(2) The debentures, assumed in April 2013 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.43%, adjusted quarterly.

(3) The debentures, assumed in April 2016 as a result of an acquisition, have a floating rate of three-month LIBOR plus 1.35%, adjusted quarterly.

(4) The debentures, assumed in April 2017 as the result of an acquisition, have a floating rate of three-month LIBOR plus 2.79%, adjusted quarterly.

(5) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.53%, adjusted quarterly.

(6) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.69%, adjusted quarterly.

(7) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of 5-year LIBOR plus 3.40%, which resets every five years.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Fair value represents the estimated price at which an orderly transaction to sell an asset or transfer a liability would take place between market participants at the measurement date under current market conditions (i.e., an exit price concept), and is a market-based measurement versus an entity-specific measurement. The Company records and/or discloses certain financial instruments on a fair value basis. These financial assets and financial liabilities are measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the observability of the assumptions used to determine fair value. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from independent sources. Unobservable inputs are inputs that reflect assumptions of the reporting entity about how market participants would price the asset or liability based on the best information available under the circumstances. The three fair value levels are:

•Level 1 – quoted market prices in active markets for identical assets or liabilities that a company has the ability to access at the measurement date

•Level 2 – inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly

•Level 3 – significant unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity

In instances where the fair value measurement is based on inputs from different levels, the level within which the entire fair value measurement will be categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. This assessment of the significance of an input requires management judgment.

Recurring basis fair value measurements:

The following table presents the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented.

(in thousands)			Fair Value Measurements Using
Measured at Fair Value on a Recurring Basis:	Total		Level 1		Level 2		Level 3
September 30, 2022
U.S. government agency securities	$	184,763	$	—	$	184,763	$	—
State, county and municipals	411,864		—		410,021		1,843
Mortgage-backed securities	213,435		—		212,453		982
Corporate debt securities	139,535		—		134,214		5,321
Securities AFS	$	949,597	$	—	$	941,451	$	8,146
Other investments (equity securities)	$	4,482	$	4,482	$	—	$	—
Derivative assets	—		—		—		—
Derivative liabilities	—		—		—		—
December 31, 2021
U.S. government agency securities	$	191,277	$	—	$	191,277	$	—
State, county and municipals	312,737		—		310,316		2,421
Mortgage-backed securities	271,262		—		270,260		1,002
Corporate debt securities	146,385		—		141,743		4,642
Securities AFS	$	921,661	$	—	$	913,596	$	8,065
Other investments (equity securities)	$	5,660	$	5,660	$	—	$	—
Derivative assets	1,064		—		1,064		—
Derivative liabilities	1,064		—		1,064		—

The following is a description of the valuation methodologies used by the Company for the assets and liabilities measured at fair value on a recurring basis, noted in the tables above. Where quoted market prices on securities exchanges are available, the investments are classified as Level 1. Level 1 investments primarily include exchange-traded equity securities. If quoted market prices are not available, fair value is generally determined using prices obtained from independent pricing vendors who use pricing models (with typical inputs including benchmark yields, reported trades for similar securities, issuer spreads or relationship to other benchmark quoted securities), or discounted cash flows, and are classified as Level 2. Examples of these investments include U.S. government agency securities, mortgage-backed securities, obligations of state, county and municipals, and certain corporate debt securities. Finally, in certain cases where there is limited activity or less transparency around inputs to the estimated fair value, investments are classified within Level 3 of the hierarchy. Examples of these include private corporate debt securities, which are primarily trust preferred security investments, as well as certain municipal bonds and mortgage-backed securities. At September 30, 2022 and December 31, 2021, it was determined that carrying value was the best approximation of fair value for these Level 3 securities, based primarily on the internal analysis on these securities. The fair value of the derivative assets and liabilities is determined using a discounted cash flow analysis of the expected cash flows of each derivative, which considers the contractual terms of the underlying derivative financial instrument and observable market-based inputs, such as interest rate curves.

The following table presents the changes in Level 3 securities AFS measured at fair value on a recurring basis.

	Nine Months Ended		Year Ended
Level 3 Fair Value Measurements:	September 30, 2022		December 31, 2021
Balance at beginning of year	$	8,065	$	3,130
Acquired balance	750		4,935
Maturities / Paydowns	(442)		—
Unrealized gain / (loss)	(227)		—
Balance at end of period	$	8,146	$	8,065

Nonrecurring basis fair value measurements:

The following table presents the Company’s assets measured at fair value on a nonrecurring basis, aggregated by level in the fair value hierarchy within which those measurements fall.

(in thousands)			Fair Value Measurements Using
Measured at Fair Value on a Nonrecurring Basis:	Total		Level 1		Level 2		Level 3
September 30, 2022
Collateral dependent loans	$	30,217	$	—	$	—	$	30,217
Other real estate owned (“OREO”)	2,134		—		—		2,134
MSR asset	13,118		—		—		13,118
LSR asset	13,042		—		—		13,042
December 31, 2021
Collateral dependent loans	$	36,230	$	—	$	—	$	36,230
OREO	11,955		—		—		11,955
MSR asset	12,436		—		—		12,436
LSR asset	20,055		—		—		20,055

The following is a description of the valuation methodologies used by the Company for the items noted in the table above. For collateral dependent loans, the estimated fair value is based upon the present value of expected future cash flows discounted at the loan’s effective interest rate, the estimated fair value of the underlying collateral with consideration for estimated selling costs if satisfaction of the loan depends on the sale of the collateral, or the estimated liquidity of the note. For OREO, the fair value is based upon the estimated fair value of the underlying collateral adjusted for the expected costs to sell. To estimate the fair value of the MSR asset, the underlying serviced loan pools are stratified by interest rate tranche and term of the loan, and a valuation model is used to calculate the present value of the expected future cash flows for each stratum. The servicing valuation model incorporates assumptions that market participants would use in estimating future net servicing income, such as costs to service, a discount rate, ancillary income, default rates and losses, and prepayment speeds. Although some of these assumptions are based on observable market data, other assumptions are based on unobservable estimates of what market participants would use to measure fair value.

Financial instruments:

The carrying amounts and estimated fair values of the Company’s financial instruments are shown below.

September 30, 2022
(in thousands)	Carrying Amount		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	438,282	$	438,282	$	438,282	$	—	$	—
Certificates of deposit in other banks	13,510		13,409		—		13,409		—
Securities AFS	949,597		949,597		—		941,451		8,146
Securities HTM	686,424		627,639		—		627,639		—
Other investments, including equity securities	79,279		79,279		4,482		58,910		15,887
Loans held for sale	3,709		3,770		—		3,770		—
Loans, net	5,924,089		5,638,877		—		—		5,638,877
MSR asset	13,118		16,740		—		—		16,740
LSR asset	13,042		13,042		—		—		13,042
Accrued interest receivable	21,542		21,542		21,542		—		—
Financial liabilities:
Deposits	$	7,395,902	$	7,390,443	$	—	$	—	$	7,390,443
Short-term borrowings	280,000		280,000		—		280,000		—
Long-term borrowings	225,236		220,616		—		33,104		187,512
Accrued interest payable	3,533		3,533		3,533		—		—

December 31, 2021
(in thousands)	Carrying Amount		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	595,292	$	595,292	$	595,292	$	—	$	—
Certificates of deposit in other banks	21,920		22,236		—		22,236		—
Securities AFS	921,661		921,661		—		913,596		8,065
Securities HTM	651,803		648,394		—		648,394		—
Other investments, including equity securities	44,008		44,008		5,660		32,110		6,238
Loans held for sale	6,447		6,616		—		6,616		—
Loans, net	4,572,164		4,606,851		—		—		4,606,851
MSR asset	12,436		15,599		—		—		15,599
LSR asset	20,055		20,055		—		—		20,055
Accrued interest receivable	15,277		15,277		15,277		—		—
Financial liabilities:
Deposits	$	6,465,916	$	6,463,064	$	—	$	—	$	6,463,064
Long-term borrowings	216,915		216,092		—		25,097		190,995
Accrued interest payable	3,078		3,078		3,078		—		—

The valuation methodologies for the financial instruments disclosed in the above table are described in Note 18, Fair Value Measurements, in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

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Other Assets and Other Liabilities Held for Sale	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Other Assets and Other Liabilities Held for Sale	Other Assets and Other Liabilities Held for SaleOn September 7, 2021, Nicolet entered into a Purchase and Assumption Agreement (the “Birmingham Agreement”) with Bank of Ann Arbor to sell Nicolet’s Birmingham, Michigan branch, including legacy mBank’s asset-based lending team (the “Birmingham Sale”). Pursuant to the terms of the Birmingham Agreement, Bank of Ann Arbor agreed to assume certain deposit liabilities and to acquire certain loans, as well as cash, personal property and other fixed assets associated with the Birmingham branch. The combined loan and deposit balances of the Birmingham branch (excluding certain loans and deposits not subject to the Birmingham Agreement) were approximately $199 million and $51 million, respectively, as of December 31, 2021. The Birmingham Sale closed on January 21, 2022.

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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2022

Accounting Policies [Abstract]

General

General

In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments necessary to present fairly the consolidated balance sheets, statements of income, comprehensive income (loss), changes in stockholders’ equity and cash flows of Nicolet Bankshares, Inc. (the “Company” or “Nicolet”) and its subsidiaries, as of and for the periods presented, and all such adjustments are of a normal recurring nature. All material intercompany transactions and balances have been eliminated. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the entire year.

These interim consolidated financial statements have been prepared according to the rules and regulations of the Securities and Exchange Commission and, therefore, certain information and footnote disclosures normally presented in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been omitted or abbreviated. These consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Critical Accounting Policies and Estimates

Critical Accounting Policies and Estimates

Preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future. Estimates are used in accounting for, among other items, the allowance for credit losses, valuation of loans in acquisition transactions, useful lives for depreciation and amortization, fair value of financial instruments, impairment calculations, valuation of deferred tax assets, uncertain income tax positions and contingencies. Estimates that are particularly susceptible to significant change for the Company include the determination of the allowance for credit losses, the determination and assessment of deferred tax assets and liabilities, and the valuation of loans acquired in acquisition transactions; therefore, these are critical accounting policies. Factors that may cause sensitivity to the aforementioned estimates include but are not limited to: external market factors such as market interest rates and employment rates, changes to operating policies and procedures, changes in applicable banking or tax regulations, and changes to deferred tax estimates. Actual results may ultimately differ from estimates, although management does not generally believe such differences would materially affect the consolidated financial statements in any individual reporting period presented.

There have been no material changes or developments with respect to the assumptions or methodologies that the Company uses when applying what management believes are critical accounting policies and developing critical accounting estimates as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Future Accounting Pronouncements

Future Accounting Pronouncements

In March 2022, the FASB issued ASU 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings (“TDRs”) and Vintage Disclosures. This ASU eliminates the accounting guidance for TDRs by creditors, while enhancing the disclosure requirements for certain loan refinancings and restructurings by creditors when a borrower is experiencing financial difficulty. The ASU also requires public business entities to expand the vintage disclosures to include gross charge-offs by year of origination. The updated guidance is effective for fiscal years beginning after December 15, 2022, with early adoption permitted. Adoption of this amendment is not expected to have a material impact on the Company’s consolidated financial statements; though, it will result in new disclosures of gross charge-offs by year of origination and on the types of loan modifications to borrowers experiencing financial difficulties. Current TDR disclosures will be also removed.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. It provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The updated guidance is effective for all entities as of March 12, 2020 through December 31, 2022. The Company continues to work through the cessation of LIBOR, including the modification of its loans and other financial instruments with attributes that are either directly or indirectly influenced by LIBOR. The Company expects to utilize the reference rate reform transition guidance, as applicable, and does not expect such adoption to have a material impact on its consolidated financial statements or financial disclosures. The Company will continue to assess the impact as the reference rate transition approaches June 30, 2023.

Reclassifications

Reclassifications

Certain amounts in the 2021 consolidated financial statements have been reclassified to conform to the 2022 presentation. These reclassifications were not material and did not impact previously reported net income or comprehensive income.

Allowance for Credit Losses - Loans

The ACL-Loans represents management’s estimate of expected credit losses in the Company’s loan portfolio at the balance sheet date. To assess the appropriateness of the ACL-Loans, management applies an allocation methodology which focuses on evaluation of qualitative and environmental factors, including but not limited to: (i) evaluation of facts and issues related to specific loans; (ii) management’s ongoing review and grading of the loan portfolio; (iii) consideration of historical loan loss and delinquency experience on each portfolio segment; (iv) trends in past due and nonperforming loans; (v) the risk characteristics of the various loan segments; (vi) changes in the size and character of the loan portfolio; (vii) concentrations of loans to specific borrowers or industries; (viii) existing economic conditions; (ix) the fair value of underlying collateral; and (x) other qualitative and quantitative factors which could affect expected credit losses. Assessing these numerous factors involves significant judgment.

Management allocates the ACL-Loans by pools of risk within each loan portfolio segment. The allocation methodology consists of the following components. First, a specific reserve is established for individually evaluated credit-deteriorated loans, which management defines as nonaccrual credit relationships over $250,000, collateral dependent loans, purchased credit deteriorated loans, and other loans with evidence of credit deterioration. The specific reserve in the ACL-Loans for these credit deteriorated loans is equal to the aggregate collateral or discounted cash flow shortfall. Management allocates the ACL-Loans with historical loss rates by loan segment. The loss factors are measured on a quarterly basis and applied to each loan segment based on current loan balances and projected for their expected remaining life. Next, management allocates the ACL-Loans using the qualitative factors mentioned above. Consideration is given to those current qualitative or environmental factors that are likely to cause estimated credit losses as of the evaluation date to differ from the historical loss experience of each loan segment. Lastly, management considers reasonable and supportable forecasts to assess the collectability of future cash flows.

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Acquisitions (Tables)

9 Months Ended

Sep. 30, 2022

Business Combination and Asset Acquisition [Abstract]

Schedule of assets acquired and liabilities assumed and preliminary purchase price allocation

A summary of the assets acquired and liabilities assumed in the Charter transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from Charter		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	10	$	—	$	10
Investment securities	218		—		218
Loans	848		(21)		827
ACL-Loans	(9)		7		(2)
Premises and equipment	9		1		10
BOLI	29		—		29
Core deposit intangible	—		19		19
Other assets	5		2		7
Total assets	$	1,110	$	8	$	1,118
Liabilities Assumed:
Deposits	$	869	$	1	$	870
Borrowings	161		—		161
Other liabilities	3		—		3
Total liabilities	$	1,033	$	1	$	1,034
Net assets acquired					$	84
Purchase Price:
Nicolet common stock issued (in shares)					1,262,360
Value of Nicolet common stock consideration					$	98
Cash consideration paid					39
Total purchase price					$	137
Preliminary goodwill					$	53

The carrying amount of these loans at acquisition was as follows.

(In thousands)	August 26, 2022
Purchase price of PCD loans at acquisition	$	24,031
Allowance for credit losses on PCD loans at acquisition	1,709
Par value of PCD acquired loans at acquisition	$	25,740

A summary of the assets acquired and liabilities assumed in the County transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from County		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	20	$	—	$	20
Investment securities	301		(1)		300
Loans	1,015		(1)		1,014
ACL-Loans	(11)		8		(3)
Premises and equipment	21		(4)		17
BOLI	33		—		33
Core deposit intangible	—		7		7
Loan servicing rights	20		—		20
Other assets	6		(2)		4
Total assets	$	1,405	$	7	$	1,412
Liabilities Assumed:
Deposits	$	1,027	$	3	$	1,030
Borrowings	218		1		219
Other liabilities	8		—		8
Total liabilities	$	1,253	$	4	$	1,257
Net assets acquired					$	155
Purchase Price:
Nicolet common stock issued (in shares)					2,366,243
Value of Nicolet common stock consideration					$	176
Cash consideration paid					48
Total purchase price					$	224
Write-off prior investment in County					(1)
Goodwill					$	70

The carrying amount of these loans at acquisition was as follows.

(In thousands)	December 3, 2021
Purchase price of PCD loans at acquisition	$	64,948
Allowance for credit losses on PCD loans at acquisition	3,262
Par value of PCD acquired loans at acquisition	$	68,210

A summary of the assets acquired and liabilities assumed in the Mackinac transaction, as of the acquisition date, including the purchase price allocation was as follows.

(In millions, except share data)	Acquired from Mackinac		Fair Value Adjustments		Estimated Fair Value
Assets Acquired:
Cash and cash equivalents	$	448	$	—	$	448
Investment securities	104		—		104
Loans	930		10		940
ACL-Loans	(6)		4		(2)
Premises and equipment	24		(3)		21
BOLI	16		—		16
Goodwill	20		(20)		—
Other intangibles	4		3		7
Other assets	25		(3)		22
Total assets	$	1,565	$	(9)	$	1,556
Liabilities Assumed:
Deposits	$	1,365	$	1	$	1,366
Borrowings	28		1		29
Other liabilities	13		1		14
Total liabilities	$	1,406	$	3	$	1,409
Net assets acquired					$	147
Purchase Price:
Nicolet common stock issued (in shares)					2,337,230
Value of Nicolet common stock consideration					$	180
Cash consideration paid					49
Total purchase price					$	229
Write-off prior investment in Mackinac					(2)
Goodwill					$	84

The carrying amount of these loans at acquisition was as follows.

(In thousands)	September 3, 2021
Purchase price of PCD loans at acquisition	$	10,605
Allowance for credit losses on PCD loans at acquisition	1,896
Par value of PCD acquired loans at acquisition	$	12,501

Schedule of unaudited pro forma information

The following unaudited pro forma information is presented for illustrative purposes only, and gives effect to the acquisitions of County and Mackinac as if the acquisitions had occurred on January 1, 2021, the beginning of the earliest period presented. The pro forma information should not be relied upon as being indicative of the historical results of operations the companies would have had if the acquisitions had occurred before such periods or the future results of operations that the companies will experience as a result of the mergers. The pro forma information, although helpful in illustrating the financial characteristics of the combined company under one set of assumptions, does not reflect the benefits of expected cost savings, opportunities to earn additional revenue, the impact of restructuring and merger-related expenses, or other factors that may result as a consequence of the mergers and, accordingly, does not attempt to predict or suggest future results.

	Three Months Ended		Nine Months Ended
(In thousands, except per share data)	September 30, 2021		September 30, 2021
Total revenue, net of interest expense	$	84,802	$	241,287
Net income	$	16,470	$	62,243
Diluted earnings per common share	$	1.06	$	4.09

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Earnings per Common Share (Tables)

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Schedule of basic and diluted earnings per common share

Presented below are the calculations for basic and diluted earnings per common share.

	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands, except per share data)	2022		2021		2022		2021
Net income	$	18,510	$	7,824	$	66,659	$	44,347
Weighted average common shares outstanding	13,890		10,392		13,648		10,098
Effect of dilutive common stock awards	420		384		479		405
Diluted weighted average common shares outstanding	14,310		10,776		14,127		10,503
Basic earnings per common share*	$	1.33	$	0.75	$	4.88	$	4.39
Diluted earnings per common share*	$	1.29	$	0.73	$	4.72	$	4.22

*Cumulative quarterly per share performance may not equal annual per share totals due to the effects of the amount and timing of capital increases. When computing earnings per share for an interim period, the denominator is based on the weighted average shares outstanding during the interim period, and not on an annualized weighted average basis. Accordingly, the sum of the earnings per share data for the quarters will not necessarily equal the year to date earnings per share data.

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of weighted average assumption for stock option

The weighted average assumptions used in the Black-Scholes model for valuing stock option grants for the nine months ended September 30, 2022 and 2021 were as follows.

	Nine Months Ended September 30,
	2022			2021
Dividend yield	—		%	—		%
Expected volatility	30		%	30		%
Risk-free interest rate	3.03		%	1.16		%
Expected average life	7 years			7 years
Weighted average per share fair value of options	$	30.99		$	26.55

Schedule of stock options outstanding

A summary of the Company’s stock option activity is summarized below.

Stock Options	Option Shares Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Life (Years)	Aggregate Intrinsic Value (in thousands)
Outstanding - December 31, 2021	1,833,246	$	57.69
Granted	132,929	81.04
Exercise of stock options *	(65,661)	41.26
Forfeited	(8,500)	77.62
Outstanding - September 30, 2022	1,892,014	$	59.81	6.2	$	24,920
Exercisable - September 30, 2022	1,207,585	$	50.84	4.9	$	24,324

* The terms of the stock option agreements permit having a number of shares of stock withheld, the fair market value of which as of the date of exercise is sufficient to satisfy the exercise price and/or tax withholding requirements. For the nine months ended September 30, 2022, 6,073 such shares were withheld by the Company.

Schedule of restricted stock awards

A summary of the Company’s restricted stock activity is summarized below.

Restricted Stock	Weighted Average Grant Date Fair Value		Restricted Shares Outstanding
Outstanding - December 31, 2021	$	71.42	25,801
Granted	75.99		60,852
Vested *	71.51		(13,127)
Forfeited	56.01		(600)
Outstanding - September 30, 2022	$	75.34	72,926

* The terms of the restricted stock agreements permit the surrender of shares to the Company upon vesting in order to satisfy applicable tax withholding requirements at the minimum statutory withholding rate, and accordingly, 465 shares were surrendered during the nine months ended September 30, 2022.

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Securities and Other Investments (Tables)

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of amortized cost and fair value of securities AFS

The amortized cost and fair value of securities AFS and HTM are summarized as follows.

	September 30, 2022
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	194,295	$	—	$	9,532	$	184,763	19	%
State, county and municipals	454,740		32		42,908		411,864		43	%
Mortgage-backed securities	239,430		1		25,996		213,435		23	%
Corporate debt securities	146,528		—		6,993		139,535		15	%
Total securities AFS	$	1,034,993	$	33	$	85,429	$	949,597	100	%
Securities HTM:
U.S. government agency securities	$	506,952	$	65	$	38,590	$	468,427	74	%
State, county and municipals	39,121		1		3,363		35,759		6	%
Mortgage-backed securities	140,351		—		16,898		123,453		20	%
Total securities HTM	$	686,424	$	66	$	58,851	$	627,639	100	%

	December 31, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	192,506	$	6	$	1,235	$	191,277	21	%
State, county and municipals	311,717		3,222		2,202		312,737		34	%
Mortgage-backed securities	270,017		3,090		1,845		271,262		29	%
Corporate debt securities	143,172		3,459		246		146,385		16	%
Total securities AFS	$	917,412	$	9,777	$	5,528	$	921,661	100	%
Securities HTM:
U.S. government agency securities	$	508,810	$	—	$	2,740	$	506,070	78	%
State, county and municipals	42,876		10		173		42,713		7	%
Mortgage-backed securities	100,117		89		595		99,611		15	%
Total securities HTM	$	651,803	$	99	$	3,508	$	648,394	100	%

Schedule of amortized cost and fair value of securities HTM

The amortized cost and fair value of securities AFS and HTM are summarized as follows.

	September 30, 2022
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	194,295	$	—	$	9,532	$	184,763	19	%
State, county and municipals	454,740		32		42,908		411,864		43	%
Mortgage-backed securities	239,430		1		25,996		213,435		23	%
Corporate debt securities	146,528		—		6,993		139,535		15	%
Total securities AFS	$	1,034,993	$	33	$	85,429	$	949,597	100	%
Securities HTM:
U.S. government agency securities	$	506,952	$	65	$	38,590	$	468,427	74	%
State, county and municipals	39,121		1		3,363		35,759		6	%
Mortgage-backed securities	140,351		—		16,898		123,453		20	%
Total securities HTM	$	686,424	$	66	$	58,851	$	627,639	100	%

	December 31, 2021
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Fair Value as % of Total
Securities AFS:
U.S. government agency securities	$	192,506	$	6	$	1,235	$	191,277	21	%
State, county and municipals	311,717		3,222		2,202		312,737		34	%
Mortgage-backed securities	270,017		3,090		1,845		271,262		29	%
Corporate debt securities	143,172		3,459		246		146,385		16	%
Total securities AFS	$	917,412	$	9,777	$	5,528	$	921,661	100	%
Securities HTM:
U.S. government agency securities	$	508,810	$	—	$	2,740	$	506,070	78	%
State, county and municipals	42,876		10		173		42,713		7	%
Mortgage-backed securities	100,117		89		595		99,611		15	%
Total securities HTM	$	651,803	$	99	$	3,508	$	648,394	100	%

Schedule of unrealized losses and fair value of investment securities

The following table presents gross unrealized losses and the related estimated fair value of investment securities for which an allowance for credit losses has not been recorded, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position.

	September 30, 2022
	Less than 12 months				12 months or more				Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Number of Securities
Securities AFS:
U.S. government agency securities	$	73,427	$	3,649	$	111,307	$	5,883	$	184,734	$	9,532	18
State, county and municipals	325,212		29,803		66,031		13,105		391,243		42,908		906
Mortgage-backed securities	163,160		17,180		49,315		8,816		212,475		25,996		384
Corporate debt securities	123,488		5,218		11,668		1,775		135,156		6,993		94
Total	$	685,287	$	55,850	$	238,321	$	29,579	$	923,608	$	85,429	1,402
Securities HTM:
U.S. government agency securities	$	459,059	$	38,590	$	—	$	—	$	459,059	$	38,590	6
State, county and municipals	25,308		2,663		4,495		700		29,803		3,363		58
Mortgage-backed securities	117,168		15,696		6,285		1,202		123,453		16,898		106
Total	$	601,535	$	56,949	$	10,780	$	1,902	$	612,315	$	58,851	170

	December 31, 2021
	Less than 12 months				12 months or more				Total
($ in thousands)	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Number of Securities
Securities AFS:
U.S. government agency securities	$	190,432	$	1,235	$	—	$	—	$	190,432	$	1,235	11
State, county and municipals	103,950		2,119		1,777		83		105,727		2,202		132
Mortgage-backed securities	137,561		1,616		6,068		229		143,629		1,845		159
Corporate debt securities	23,267		246		—		—		23,267		246		13
Total	$	455,210	$	5,216	$	7,845	$	312	$	463,055	$	5,528	315
Securities HTM:
U.S. government agency securities	$	505,938	$	2,740	$	—	$	—	$	505,938	$	2,740	9
State, county and municipals	30,898		173		—		—		30,898		173		46
Mortgage-backed securities	69,333		595		—		—		69,333		595		72
Total	$	606,169	$	3,508	$	—	$	—	$	606,169	$	3,508	127

Schedule of amortized cost and fair value of investment securities by contractual maturity

The amortized cost and fair value of investment securities by contractual maturity are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties; as this is particularly inherent in mortgage-backed securities, these securities are not included in the maturity categories below.

As of September 30, 2022	Securities AFS				Securities HTM
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due in less than one year	$	220,008	$	214,856	$	5,032	$	5,022
Due in one year through five years	189,795		180,208		510,548		471,106
Due after five years through ten years	233,100		206,362		26,740		24,404
Due after ten years	152,660		134,736		3,753		3,654
	795,563		736,162		546,073		504,186
Mortgage-backed securities	239,430		213,435		140,351		123,453
Total investment securities	$	1,034,993	$	949,597	$	686,424	$	627,639

Schedule of proceeds and realized gains or losses from the sale of AFS securities

Proceeds and realized gains or losses from the sale of AFS securities were as follows.

	Nine Months Ended September 30,
(in thousands)	2022		2021
Gross gains	$	20	$	4
Gross losses	(5)		(17)
Gains (losses) on sales of securities AFS, net	$	15	$	(13)
Proceeds from sales of securities AFS *	$	23,984	$	15,975

* Includes proceeds of $21 million recognized on the sale of securities AFS upon acquisition of Charter for which no gain or loss was recognized in the income statement as the securities were marked to fair value through purchase accounting.

Summary of other investments

The carrying value of other investments are summarized as follows.

	September 30, 2022		December 31, 2021
(in thousands)	Amount		Amount
Federal Reserve Bank stock	$	34,722	$	20,973
Federal Home Loan Bank (“FHLB”) stock	22,939		10,545
Equity securities with readily determinable fair values	4,482		5,660
Other investments	17,136		6,830
Total other investments	$	79,279	$	44,008

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

9 Months Ended

Sep. 30, 2022

Receivables [Abstract]

Schedule of loan composition by portfolio segment

The loan composition is summarized as follows.

	September 30, 2022					December 31, 2021
(in thousands)	Amount			% of Total		Amount			% of Total
Commercial & industrial	$	1,268,252		21	%	$	1,042,256		23	%
Owner-occupied commercial real estate (“CRE”)	954,933			16		787,189			17
Agricultural	1,017,498			17		794,728			17
CRE investment	1,132,951			19		818,061			18
Construction & land development	306,446			5		213,035			5
Residential construction	101,286			2		70,353			1
Residential first mortgage	970,384			16		713,983			15
Residential junior mortgage	176,428			3		131,424			3
Retail & other	56,259			1		50,807			1
Loans	5,984,437			100	%	4,621,836			100	%
Less allowance for credit losses - Loans (“ACL-Loans”)	60,348					49,672
Loans, net	$	5,924,089				$	4,572,164
Allowance for credit losses - Loans to loans	1.01		%			1.07		%

Schedule of changes in allowance for credit losses

A roll forward of the allowance for credit losses - loans is summarized as follows.

	Three Months Ended				Nine Months Ended				Year Ended
(in thousands)	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021		December 31, 2021
Beginning balance	$	50,655	$	32,561	$	49,672	$	32,173	$	32,173
ACL on PCD loans acquired	1,709		1,896		1,709		1,896		5,159
Provision for credit losses	8,200		4,000		9,100		4,500		12,500
Charge-offs	(300)		(107)		(442)		(436)		(513)
Recoveries	84		49		309		266		353
Net (charge-offs) recoveries	(216)		(58)		(133)		(170)		(160)
Ending balance	$	60,348	$	38,399	$	60,348	$	38,399	$	49,672

The following tables present the balance and activity in the ACL-Loans by portfolio segment.

	Nine Months Ended September 30, 2022
(in thousands)	Commercial & industrial			Owner- occupied CRE			Agricultural			CRE investment			Construction & land development			Residential construction			Residential first mortgage			Residential junior mortgage			Retail & other			Total
ACL-Loans *
Beginning balance	$	12,613		$	7,222		$	9,547		$	8,462		$	1,812		$	900		$	6,844		$	1,340		$	932		$	49,672
ACL on PCD loans	1,408			156			—			38			2			—			93			12			—			1,709
Provision	621			1,356			847			3,004			603			446			1,415			517			291			9,100
Charge-offs	(152)			(36)			—			—			—			—			(65)			—			(189)			(442)
Recoveries	103			—			—			169			—			—			7			9			21			309
Net (charge-offs) recoveries	(49)			(36)			—			169			—			—			(58)			9			(168)			(133)
Ending balance	$	14,593		$	8,698		$	10,394		$	11,673		$	2,417		$	1,346		$	8,294		$	1,878		$	1,055		$	60,348
As % of ACL-Loans	24		%	15		%	17		%	19		%	4		%	2		%	14		%	3		%	2		%	100		%

*The PPP loans are fully guaranteed by the SBA; thus, no ACL-Loans has been allocated to these loans.

	Year Ended December 31, 2021
(in thousands)	Commercial & industrial			Owner- occupied CRE			Agricultural			CRE investment			Construction & land development			Residential construction			Residential first mortgage			Residential junior mortgage			Retail & other			Total
ACL-Loans *
Beginning balance	$	11,644		$	5,872		$	1,395		$	5,441		$	984		$	421		$	4,773		$	1,086		$	557		$	32,173
ACL on PCD loans	723			1,045			2,585			415			103			—			272			13			3			5,159
Provision	196			305			5,615			2,608			725			479			1,892			237			443			12,500
Charge-offs	(242)			—			(48)			(4)			—			—			(113)			—			(106)			(513)
Recoveries	292			—			—			2			—			—			20			4			35			353
Net (charge-offs) recoveries	50			—			(48)			(2)			—			—			(93)			4			(71)			(160)
Ending balance	$	12,613		$	7,222		$	9,547		$	8,462		$	1,812		$	900		$	6,844		$	1,340		$	932		$	49,672
As % of ACL-Loans	25		%	14		%	19		%	17		%	4		%	2		%	14		%	3		%	2		%	100		%

Schedule of provision for credit losses

The following table presents the components of the provision for credit losses.

	Three Months Ended				Nine Months Ended				Year Ended
(in thousands)	September 30, 2022		September 30, 2021		September 30, 2022		September 30, 2021		December 31, 2021
Provision for credit losses on:
Loans	$	8,200	$	4,000	$	9,100	$	4,500	$	12,500
Unfunded Commitments	400		2,000		550		2,000		2,400
Investment securities	—		—		—		—		—
Total	$	8,600	$	6,000	$	9,650	$	6,500	$	14,900

Schedule of collateral dependent loans by portfolio segment

The following tables present collateral dependent loans by portfolio segment and collateral type, including those loans with and without a related allowance allocation.

September 30, 2022	Collateral Type
(in thousands)	Real Estate		Other Business Assets		Total		Without an Allowance		With an Allowance		Allowance Allocation
Commercial & industrial	$	—	$	3,032	$	3,032	$	1,443	$	1,589	$	661
Owner-occupied CRE	5,205		—		5,205		3,526		1,679		297
Agricultural	13,974		6,439		20,413		16,900		3,513		205
CRE investment	2,196		—		2,196		404		1,792		242
Construction & land development	685		—		685		685		—		—
Residential construction	—		—		—		—		—		—
Residential first mortgage	91		—		91		91		—		—
Residential junior mortgage	—		—		—		—		—		—
Retail & other	—		—		—		—		—		—
Total loans	$	22,151	$	9,471	$	31,622	$	23,049	$	8,573	$	1,405

December 31, 2021	Collateral Type
(in thousands)	Real Estate		Other Business Assets		Total		Without an Allowance		With an Allowance		Allowance Allocation
Commercial & industrial	$	—	$	2,296	$	2,296	$	1,842	$	454	$	258
Owner-occupied CRE	3,537		—		3,537		1,315		2,222		552
Agricultural	19,637		8,518		28,155		25,310		2,845		841
CRE investment	3,000		—		3,000		1,684		1,316		407
Construction & land development	1,038		—		1,038		655		383		211
Residential construction	—		—		—		—		—		—
Residential first mortgage	473		—		473		473		—		—
Residential junior mortgage	—		—		—		—		—		—
Retail & other	—		—		—		—		—		—
Total loans	$	27,685	$	10,814	$	38,499	$	31,279	$	7,220	$	2,269

Schedule of past due loans by portfolio segment

The following tables present past due loans by portfolio segment.

	September 30, 2022
(in thousands)	30-89 Days Past Due (accruing)			90 Days & Over or nonaccrual			Current			Total
Commercial & industrial	$	954		$	3,052		$	1,264,246		$	1,268,252
Owner-occupied CRE	513			5,806			948,614			954,933
Agricultural	—			20,646			996,852			1,017,498
CRE investment	27			3,343			1,129,581			1,132,951
Construction & land development	—			794			305,652			306,446
Residential construction	557			—			100,729			101,286
Residential first mortgage	1,621			4,309			964,454			970,384
Residential junior mortgage	249			277			175,902			176,428
Retail & other	138			99			56,022			56,259
Total loans	$	4,059		$	38,326		$	5,942,052		$	5,984,437
Percent of total loans	0.1		%	0.6		%	99.3		%	100.0		%

	December 31, 2021
(in thousands)	30-89 Days Past Due (accruing)			90 Days & Over or nonaccrual			Current			Total
Commercial & industrial	$	94		$	1,908		$	1,040,254		$	1,042,256
Owner-occupied CRE	—			4,220			782,969			787,189
Agricultural	108			28,367			766,253			794,728
CRE investment	114			4,119			813,828			818,061
Construction & land development	—			1,071			211,964			213,035
Residential construction	246			—			70,107			70,353
Residential first mortgage	2,592			4,132			707,259			713,983
Residential junior mortgage	23			243			131,158			131,424
Retail & other	115			94			50,598			50,807
Total loans	$	3,292		$	44,154		$	4,574,390		$	4,621,836
Percent of total loans	0.1		%	0.9		%	99.0		%	100.0		%

Schedule of nonaccrual loans by portfolio segment

The following table presents nonaccrual loans by portfolio segment.

	September 30, 2022					December 31, 2021
(in thousands)	Nonaccrual Loans			% of Total		Nonaccrual Loans			% of Total
Commercial & industrial	$	3,052		8	%	$	1,908		4	%
Owner-occupied CRE	5,806			15		4,220			10
Agricultural	20,646			54		28,367			64
CRE investment	3,343			9		4,119			9
Construction & land development	794			2		1,071			3
Residential construction	—			—		—			—
Residential first mortgage	4,309			11		4,132			9
Residential junior mortgage	277			1		243			1
Retail & other	99			—		94			—
Nonaccrual loans	$	38,326		100	%	$	44,154		100	%
Percent of total loans	0.6		%			0.9		%

Schedule of loans by loan risk categories by portfolio segment

The following tables present total loans by risk categories and year of origination. Loans acquired from Charter, Mackinac and County have been included in the September 30, 2022 and December 31, 2021 tables based upon the actual origination date.

September 30, 2022	Amortized Cost Basis by Origination Year
(in thousands)	2022		2021		2020		2019		2018		Prior		Revolving		Revolving to Term		TOTAL
Commercial & industrial
Grades 1-4	$	254,713	$	246,195	$	108,418	$	76,355	$	52,099	$	83,341	$	349,324	$	—	$	1,170,445
Grade 5	7,187		7,423		11,052		2,084		2,734		4,344		18,807		—		53,631
Grade 6	158		1,649		675		638		453		11,972		14,718		—		30,263
Grade 7	552		352		3,384		2,666		802		1,149		5,008		—		13,913
Total	$	262,610	$	255,619	$	123,529	$	81,743	$	56,088	$	100,806	$	387,857	$	—	$	1,268,252
Owner-occupied CRE
Grades 1-4	$	128,054	$	189,922	$	111,622	$	104,840	$	93,619	$	269,617	$	7,952	$	—	$	905,626
Grade 5	2,868		4,750		2,824		2,826		3,875		14,325		172		—		31,640
Grade 6	—		—		—		2,388		—		887		—		—		3,275
Grade 7	440		414		6,244		377		85		6,832		—		—		14,392
Total	$	131,362	$	195,086	$	120,690	$	110,431	$	97,579	$	291,661	$	8,124	$	—	$	954,933
Agricultural
Grades 1-4	$	238,387	$	154,364	$	93,529	$	26,185	$	20,967	$	135,426	$	195,784	$	—	$	864,642
Grade 5	12,109		15,525		2,823		2,028		1,504		42,561		23,090		—		99,640
Grade 6	49		1,491		31		33		—		5,322		425		—		7,351
Grade 7	7,072		2,651		863		2,024		3,655		20,388		9,212		—		45,865
Total	$	257,617	$	174,031	$	97,246	$	30,270	$	26,126	$	203,697	$	228,511	$	—	$	1,017,498
CRE investment
Grades 1-4	$	167,931	$	228,709	$	195,020	$	141,749	$	79,790	$	261,027	$	13,890	$	—	$	1,088,116
Grade 5	784		1,664		5,252		3,131		983		24,997		—		—		36,811
Grade 6	—		—		—		1,183		2,029		1,078		206		—		4,496
Grade 7	—		—		—		73		249		2,991		215		—		3,528
Total	$	168,715	$	230,373	$	200,272	$	146,136	$	83,051	$	290,093	$	14,311	$	—	$	1,132,951
Construction & land development
Grades 1-4	$	82,695	$	139,561	$	15,958	$	9,979	$	27,553	$	14,936	$	14,361	$	—	$	305,043
Grade 5	40		—		—		513		—		22		—		—		575
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	34		—		—		—		—		794		—		—		828
Total	$	82,769	$	139,561	$	15,958	$	10,492	$	27,553	$	15,752	$	14,361	$	—	$	306,446
Residential construction
Grades 1-4	$	61,266	$	32,309	$	1,490	$	125	$	338	$	664	$	5,094	$	—	$	101,286
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		—		—		—		—		—
Total	$	61,266	$	32,309	$	1,490	$	125	$	338	$	664	$	5,094	$	—	$	101,286
Residential first mortgage
Grades 1-4	$	261,535	$	266,465	$	151,436	$	73,915	$	32,871	$	167,038	$	2,595	$	3	$	955,858
Grade 5	928		1,349		1,006		2,147		2,295		418		—		—		8,143
Grade 6	—		—		—		717		—		—		—		—		717
Grade 7	—		332		211		410		225		4,488		—		—		5,666
Total	$	262,463	$	268,146	$	152,653	$	77,189	$	35,391	$	171,944	$	2,595	$	3	$	970,384
Residential junior mortgage
Grades 1-4	$	7,864	$	4,875	$	5,314	$	3,227	$	1,745	$	3,439	$	144,053	$	5,293	$	175,810
Grade 5	—		—		—		—		—		144		—		—		144
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		209		—		27		—		86		152		—		474
Total	$	7,864	$	5,084	$	5,314	$	3,254	$	1,745	$	3,669	$	144,205	$	5,293	$	176,428
Retail & other
Grades 1-4	$	11,363	$	9,873	$	4,751	$	3,677	$	1,220	$	24,608	$	667	$	—	$	56,159
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		16		2		30		52		—		—		100
Total	$	11,363	$	9,873	$	4,767	$	3,679	$	1,250	$	24,660	$	667	$	—	$	56,259
Total loans	$	1,246,029	$	1,310,082	$	721,919	$	463,319	$	329,121	$	1,102,946	$	805,725	$	5,296	$	5,984,437

December 31, 2021	Amortized Cost Basis by Origination Year
(in thousands)	2021		2020		2019		2018		2017		Prior		Revolving		Revolving to Term		TOTAL
Commercial & industrial
Grades 1-4	$	282,369	$	146,131	$	99,702	$	69,478	$	50,557	$	71,247	$	288,115	$	—	$	1,007,599
Grade 5	1,685		1,905		4,369		5,809		4,860		2,097		8,408		—		29,133
Grade 6	598		54		16		687		67		91		391		—		1,904
Grade 7	—		440		692		337		976		743		432		—		3,620
Total	$	284,652	$	148,530	$	104,779	$	76,311	$	56,460	$	74,178	$	297,346	$	—	$	1,042,256
Owner-occupied CRE
Grades 1-4	$	154,578	$	94,300	$	105,226	$	92,128	$	75,583	$	202,816	$	6,945	$	—	$	731,576
Grade 5	7,753		3,019		6,529		2,543		2,515		13,905		656		—		36,920
Grade 6	—		—		1,642		—		20		805		—		—		2,467
Grade 7	—		3,124		1,914		—		3,526		6,672		990		—		16,226
Total	$	162,331	$	100,443	$	115,311	$	94,671	$	81,644	$	224,198	$	8,591	$	—	$	787,189
Agricultural
Grades 1-4	$	128,404	$	87,844	$	28,416	$	22,887	$	36,298	$	86,104	$	235,743	$	—	$	625,696
Grade 5	14,796		4,183		2,391		915		3,912		48,373		26,778		—		101,348
Grade 6	38		38		36		—		86		1,049		85		—		1,332
Grade 7	3,284		3,971		3,490		4,201		7,215		31,672		12,519		—		66,352
Total	$	146,522	$	96,036	$	34,333	$	28,003	$	47,511	$	167,198	$	275,125	$	—	$	794,728
CRE investment
Grades 1-4	$	192,274	$	139,127	$	136,306	$	56,148	$	65,026	$	162,991	$	11,289	$	—	$	763,161
Grade 5	11,081		3,001		6,497		3,945		6,726		17,527		—		—		48,777
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		456		141		1,352		3,943		231		—		6,123
Total	$	203,355	$	142,128	$	143,259	$	60,234	$	73,104	$	184,461	$	11,520	$	—	$	818,061
Construction & land development
Grades 1-4	$	81,891	$	72,415	$	12,547	$	19,511	$	1,184	$	11,274	$	10,943	$	—	$	209,765
Grade 5	640		—		521		919		—		119		—		—		2,199
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		17		1,054		—		—		1,071
Total	$	82,531	$	72,415	$	13,068	$	20,430	$	1,201	$	12,447	$	10,943	$	—	$	213,035
Residential construction
Grades 1-4	$	58,352	$	9,998	$	155	$	344	$	1,072	$	380	$	—	$	—	$	70,301
Grade 5	—		—		52		—		—		—		—		—		52
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		—		—		—		—		—		—		—
Total	$	58,352	$	9,998	$	207	$	344	$	1,072	$	380	$	—	$	—	$	70,353
Residential first mortgage
Grades 1-4	$	256,082	$	152,932	$	168,705	$	22,568	$	20,147	$	82,479	$	1,840	$	4	$	704,757
Grade 5	713		529		3,094		—		—		1,508		—		—		5,844
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		560		225		73		2,524		—		—		3,382
Total	$	256,795	$	153,461	$	172,359	$	22,793	$	20,220	$	86,511	$	1,840	$	4	$	713,983
Residential junior mortgage
Grades 1-4	$	3,194	$	3,139	$	3,021	$	1,501	$	512	$	1,969	$	115,817	$	1,426	$	130,579
Grade 5	—		—		29		—		—		—		439		—		468
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		—		172		—		23		44		138		—		377
Total	$	3,194	$	3,139	$	3,222	$	1,501	$	535	$	2,013	$	116,394	$	1,426	$	131,424
Retail & other
Grades 1-4	$	13,676	$	6,886	$	5,826	$	2,053	$	1,882	$	20,102	$	275	$	—	$	50,700
Grade 5	—		—		—		—		—		—		—		—		—
Grade 6	—		—		—		—		—		—		—		—		—
Grade 7	—		24		2		19		—		62		—		—		107
Total	$	13,676	$	6,910	$	5,828	$	2,072	$	1,882	$	20,164	$	275	$	—	$	50,807
Total loans	$	1,211,408	$	733,060	$	592,366	$	306,359	$	283,629	$	771,550	$	722,034	$	1,430	$	4,621,836

The following tables present total loans by risk categories.

	September 30, 2022
(in thousands)	Grades 1- 4			Grade 5			Grade 6			Grade 7			Total
Commercial & industrial	$	1,170,445		$	53,631		$	30,263		$	13,913		$	1,268,252
Owner-occupied CRE	905,626			31,640			3,275			14,392			954,933
Agricultural	864,642			99,640			7,351			45,865			1,017,498
CRE investment	1,088,116			36,811			4,496			3,528			1,132,951
Construction & land development	305,043			575			—			828			306,446
Residential construction	101,286			—			—			—			101,286
Residential first mortgage	955,858			8,143			717			5,666			970,384
Residential junior mortgage	175,810			144			—			474			176,428
Retail & other	56,159			—			—			100			56,259
Total loans	$	5,622,985		$	230,584		$	46,102		$	84,766		$	5,984,437
Percent of total	93.9		%	3.9		%	0.8		%	1.4		%	100.0		%

	December 31, 2021
(in thousands)	Grades 1- 4			Grade 5			Grade 6			Grade 7			Total
Commercial & industrial	$	1,007,599		$	29,133		$	1,904		$	3,620		$	1,042,256
Owner-occupied CRE	731,576			36,920			2,467			16,226			787,189
Agricultural	625,696			101,348			1,332			66,352			794,728
CRE investment	763,161			48,777			—			6,123			818,061
Construction & land development	209,765			2,199			—			1,071			213,035
Residential construction	70,301			52			—			—			70,353
Residential first mortgage	704,757			5,844			—			3,382			713,983
Residential junior mortgage	130,579			468			—			377			131,424
Retail & other	50,700			—			—			107			50,807
Total loans	$	4,294,134		$	224,741		$	5,703		$	97,258		$	4,621,836
Percent of total	92.9		%	4.9		%	0.1		%	2.1		%	100.0		%

Loan composition of nonaccrual and performing TDRs

The following table presents the loan composition of nonaccrual and performing TDRs.

	September 30, 2022						December 31, 2021
(in thousands)	Performing		Nonaccrual		Total		Performing		Nonaccrual		Total
Commercial & industrial	$	—	$	223	$	223	$	—	$	197	$	197
Owner-occupied CRE	—		2,639		2,639		3,466		2,888		6,354
Agricultural	—		14,181		14,181		—		16,835		16,835
CRE investment	—		299		299		918		—		918
Construction & land development	—		75		75		—		308		308
Residential first mortgage	—		13		13		913		15		928
Residential junior mortgage	—		—		—		146		—		146
Total	$	—	$	17,430	$	17,430	$	5,443	$	20,243	$	25,686

The following table presents the number of loans modified in a TDR, pre-modification loan balance, and post-modification loan balance by loan composition.

	September 30, 2022					December 31, 2021
($ in thousands)	Number of Loans	Pre-Modification Balance		Current Balance		Number of Loans	Pre-Modification Balance		Current Balance
Commercial & industrial	4	$	240	$	223	2	$	200	$	197
Owner-occupied CRE	3	5,138		2,639		6	6,913		6,354
Agricultural	26	16,237		14,181		31	17,228		16,835
CRE investment	1	301		299		1	919		918
Construction & land development	1	533		75		1	533		308
Residential first mortgage	1	17		13		2	931		928
Residential junior mortgage	—	—		—		1	166		146
Total	36	$	22,466	$	17,430	44	$	26,890	$	25,686

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Goodwill and Other Intangibles and Servicing Rights (Tables)

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill and intangible assets

A summary of goodwill and other intangibles was as follows.

(in thousands)	September 30, 2022		December 31, 2021
Goodwill	$	369,849	$	317,189
Core deposit intangibles	34,791		19,445
Customer list intangibles	2,477		2,858
Other intangibles	37,268		22,303
Goodwill and other intangibles, net	$	407,117	$	339,492

Schedule of goodwill

A summary of goodwill was as follows. During 2022, goodwill increased due to the Charter acquisition, while during 2021, goodwill increased due to the acquisitions of Mackinac and County. See Note 2 for additional information on the Company’s acquisitions.

	Nine Months Ended		Year Ended
(in thousands)	September 30, 2022		December 31, 2021
Goodwill:
Goodwill at beginning of year	$	317,189	$	163,151
Acquisitions	52,660		154,038
Goodwill at end of period	$	369,849	$	317,189

Schedule of other intangible assets

A summary of other intangible assets was as follows. During 2022, core deposit intangibles increased due to the Charter acquisition, while during 2021, core deposit intangibles increased due to the acquisitions of Mackinac and County. See Note 2 for additional information on the Company’s acquisitions.

	Nine Months Ended		Year Ended
(in thousands)	September 30, 2022		December 31, 2021
Core deposit intangibles:
Gross carrying amount	$	60,724	$	41,360
Accumulated amortization	(25,933)		(21,915)
Net book value	$	34,791	$	19,445
Additions during the period	$	19,364	$	13,595
Amortization during the period	$	4,018	$	2,987
Customer list intangibles:
Gross carrying amount	$	5,523	$	5,523
Accumulated amortization	(3,046)		(2,665)
Net book value	$	2,477	$	2,858
Amortization during the period	$	381	$	507

Schedule of mortgage servicing rights

A summary of the changes in the mortgage servicing rights asset was as follows.

	Nine Months Ended			Year Ended
(in thousands)	September 30, 2022			December 31, 2021
Mortgage servicing rights asset:
MSR asset at beginning of year	$	13,636		$	10,230
Capitalized MSR	2,127			4,329
MSR asset acquired	—			1,322
Amortization during the period	(2,145)			(2,245)
MSR asset at end of period	$	13,618		$	13,636
Valuation allowance at beginning of year	$	(1,200)		$	(1,000)
Additions	—			(500)
Reversals	700			300
Valuation allowance at end of period	$	(500)		$	(1,200)
MSR asset, net	$	13,118		$	12,436
Fair value of MSR asset at end of period	$	16,740		$	15,599
Residential mortgage loans serviced for others	$	1,649,187		$	1,583,577
Net book value of MSR asset to loans serviced for others	0.80		%	0.79		%

Schedule of estimated future amortization expense for amortizing intangible assets and the MSR asset

The following table shows the estimated future amortization expense for amortizing intangible assets and the servicing assets. The projections are based on existing asset balances, the current interest rate environment and prepayment speeds as of September 30, 2022. The actual amortization expense the Company recognizes in any given period may be significantly different depending upon acquisition or sale activities, changes in interest rates, prepayment speeds, market conditions, regulatory requirements and events or circumstances that indicate the carrying amount of an asset may not be recoverable.

(in thousands)	Core deposit intangibles		Customer list intangibles		MSR asset		LSR asset
Year ending December 31,
2022 (remaining three months)	$	2,091	$	126	$	386	$	2,004
2023	7,589		483		2,735		6,345
2024	6,298		449		2,635		3,673
2025	5,161		449		1,884		1,020
2026	3,983		249		1,394		—
2027	3,218		166		1,394		—
Thereafter	6,451		555		3,190		—
Total	$	34,791	$	2,477	$	13,618	$	13,042

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Short and Long-Term Borrowings (Tables)

9 Months Ended

Sep. 30, 2022

Debt Disclosure [Abstract]

Schedule of components of long-term borrowings

The components of long-term borrowings were as follows.

(in thousands)	September 30, 2022		December 31, 2021
FHLB advances	$	33,000	$	25,000
Junior subordinated debentures	39,512		38,885
Subordinated notes	152,724		153,030
Total long-term borrowings	$	225,236	$	216,915

Schedule of junior subordinated debentures and subordinated notes

The following table shows the breakdown of junior subordinated debentures and subordinated notes.

		As of September 30, 2022								As of December 31, 2021
(in thousands)	Maturity Date	Interest  Rate		Par		Unamortized Premium /(Discount) / Debt Issue Costs (1)		Carrying Value		Interest  Rate		Carrying Value
Junior Subordinated Debentures:
Mid-Wisconsin Statutory Trust I (2)	12/15/2035	4.72	%	$	10,310	$	(2,625)	$	7,685	1.63	%	$	7,537
Baylake Capital Trust II (3)	9/30/2036	5.02	%	16,598		(3,233)		13,365		1.57	%	13,187
First Menasha Statutory Trust (4)	3/17/2034	6.32	%	5,155		(498)		4,657		3.01	%	4,624
County Bancorp Statutory Trust II (5)	9/15/2035	4.82	%	6,186		(948)		5,238		1.73	%	5,061
County Bancorp Statutory Trust III (6)	6/15/2036	4.98	%	6,186		(1,006)		5,180		1.89	%	5,121
Fox River Valley Capital Trust (7)	5/30/2033	6.40	%	3,610		(223)		3,387		6.40	%	3,355
Total				$	48,045	$	(8,533)	$	39,512			$	38,885
Subordinated Notes:
Subordinated Notes due 2031	7/15/2031	3.13	%	$	100,000	$	(785)	$	99,215	3.13	%	$	99,057
County Subordinated Notes due 2028	6/1/2028	5.88	%	30,000		189		30,189		5.88	%	30,402
County Subordinated Notes due 2030	6/30/2030	7.00	%	22,400		920		23,320		7.00	%	23,571
Total				$	152,400	$	324	$	152,724			$	153,030

(1) Represents the remaining unamortized premium or discount on debt issuances assumed in acquisitions, and represents the unamortized debt issue costs for the debt issued directly by Nicolet.

(2) The debentures, assumed in April 2013 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.43%, adjusted quarterly.

(3) The debentures, assumed in April 2016 as a result of an acquisition, have a floating rate of three-month LIBOR plus 1.35%, adjusted quarterly.

(4) The debentures, assumed in April 2017 as the result of an acquisition, have a floating rate of three-month LIBOR plus 2.79%, adjusted quarterly.

(5) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.53%, adjusted quarterly.

(6) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of three-month LIBOR plus 1.69%, adjusted quarterly.

(7) The debentures, assumed in December 2021 as the result of an acquisition, have a floating rate of 5-year LIBOR plus 3.40%, which resets every five years.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2022

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities measured at fair value on a recurring basis

The following table presents the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented.

(in thousands)			Fair Value Measurements Using
Measured at Fair Value on a Recurring Basis:	Total		Level 1		Level 2		Level 3
September 30, 2022
U.S. government agency securities	$	184,763	$	—	$	184,763	$	—
State, county and municipals	411,864		—		410,021		1,843
Mortgage-backed securities	213,435		—		212,453		982
Corporate debt securities	139,535		—		134,214		5,321
Securities AFS	$	949,597	$	—	$	941,451	$	8,146
Other investments (equity securities)	$	4,482	$	4,482	$	—	$	—
Derivative assets	—		—		—		—
Derivative liabilities	—		—		—		—
December 31, 2021
U.S. government agency securities	$	191,277	$	—	$	191,277	$	—
State, county and municipals	312,737		—		310,316		2,421
Mortgage-backed securities	271,262		—		270,260		1,002
Corporate debt securities	146,385		—		141,743		4,642
Securities AFS	$	921,661	$	—	$	913,596	$	8,065
Other investments (equity securities)	$	5,660	$	5,660	$	—	$	—
Derivative assets	1,064		—		1,064		—
Derivative liabilities	1,064		—		1,064		—

Changes in Level 3 assets measured at fair value on a recurring basis

The following table presents the changes in Level 3 securities AFS measured at fair value on a recurring basis.

	Nine Months Ended		Year Ended
Level 3 Fair Value Measurements:	September 30, 2022		December 31, 2021
Balance at beginning of year	$	8,065	$	3,130
Acquired balance	750		4,935
Maturities / Paydowns	(442)		—
Unrealized gain / (loss)	(227)		—
Balance at end of period	$	8,146	$	8,065

Schedule of assets measured at fair value on a nonrecurring basis

The following table presents the Company’s assets measured at fair value on a nonrecurring basis, aggregated by level in the fair value hierarchy within which those measurements fall.

(in thousands)			Fair Value Measurements Using
Measured at Fair Value on a Nonrecurring Basis:	Total		Level 1		Level 2		Level 3
September 30, 2022
Collateral dependent loans	$	30,217	$	—	$	—	$	30,217
Other real estate owned (“OREO”)	2,134		—		—		2,134
MSR asset	13,118		—		—		13,118
LSR asset	13,042		—		—		13,042
December 31, 2021
Collateral dependent loans	$	36,230	$	—	$	—	$	36,230
OREO	11,955		—		—		11,955
MSR asset	12,436		—		—		12,436
LSR asset	20,055		—		—		20,055

Schedule of estimated fair values of financial instruments

The carrying amounts and estimated fair values of the Company’s financial instruments are shown below.

September 30, 2022
(in thousands)	Carrying Amount		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	438,282	$	438,282	$	438,282	$	—	$	—
Certificates of deposit in other banks	13,510		13,409		—		13,409		—
Securities AFS	949,597		949,597		—		941,451		8,146
Securities HTM	686,424		627,639		—		627,639		—
Other investments, including equity securities	79,279		79,279		4,482		58,910		15,887
Loans held for sale	3,709		3,770		—		3,770		—
Loans, net	5,924,089		5,638,877		—		—		5,638,877
MSR asset	13,118		16,740		—		—		16,740
LSR asset	13,042		13,042		—		—		13,042
Accrued interest receivable	21,542		21,542		21,542		—		—
Financial liabilities:
Deposits	$	7,395,902	$	7,390,443	$	—	$	—	$	7,390,443
Short-term borrowings	280,000		280,000		—		280,000		—
Long-term borrowings	225,236		220,616		—		33,104		187,512
Accrued interest payable	3,533		3,533		3,533		—		—

December 31, 2021
(in thousands)	Carrying Amount		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	595,292	$	595,292	$	595,292	$	—	$	—
Certificates of deposit in other banks	21,920		22,236		—		22,236		—
Securities AFS	921,661		921,661		—		913,596		8,065
Securities HTM	651,803		648,394		—		648,394		—
Other investments, including equity securities	44,008		44,008		5,660		32,110		6,238
Loans held for sale	6,447		6,616		—		6,616		—
Loans, net	4,572,164		4,606,851		—		—		4,606,851
MSR asset	12,436		15,599		—		—		15,599
LSR asset	20,055		20,055		—		—		20,055
Accrued interest receivable	15,277		15,277		15,277		—		—
Financial liabilities:
Deposits	$	6,465,916	$	6,463,064	$	—	$	—	$	6,463,064
Long-term borrowings	216,915		216,092		—		25,097		190,995
Accrued interest payable	3,078		3,078		3,078		—		—

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Acquisitions - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Aug. 26, 2022	Dec. 03, 2021	Sep. 03, 2021
Charter Bankshares, Inc.
Business Acquisition [Line Items]
Entity shares issued per acquiree share (in shares)	15.458
Cash paid per acquiree share (in dollars per share)	$ 475
Number of common stock issued for consideration (in shares)	1,262,360
Value of Nicolet common stock consideration	$ 98
Cash consideration paid	39
Total purchase price	$ 137
County Bancorp, Inc.
Business Acquisition [Line Items]
Entity shares issued per acquiree share (in shares)		0.48
Cash paid per acquiree share (in dollars per share)		$ 37.18
Number of common stock issued for consideration (in shares)		2,366,243
Value of Nicolet common stock consideration		$ 176
Cash consideration paid		48
Total purchase price		$ 224
Shares exchanged for cash (in shares)		1,237,000
Mackinac Financial Corporation
Business Acquisition [Line Items]
Entity shares issued per acquiree share (in shares)			0.22
Cash paid per acquiree share (in dollars per share)			$ 4.64
Number of common stock issued for consideration (in shares)			2,337,230
Value of Nicolet common stock consideration			$ 180
Cash consideration paid			49
Total purchase price			$ 229

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Acquisitions - Summary of the assets acquired and liabilities assumed, including preliminary purchase price allocation (Details) - USD ($) $ in Thousands			1 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended
	Aug. 26, 2022	Dec. 03, 2021	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2021
Purchase Price:
Goodwill				$ 52,660		$ 154,038
Charter Bankshares, Inc.
Assets Acquired:
Cash and cash equivalents	$ 10,000		$ 10,000	10,000	$ 10,000
Investment securities	218,000		218,000	218,000	218,000
Loans	848,000		827,000	827,000	827,000
ACL-Loans	(9,000)		(2,000)	(2,000)	(2,000)
Premises and equipment	9,000		10,000	10,000	10,000
BOLI	29,000		29,000	29,000	29,000
Core deposit intangible	0		19,000	19,000	19,000
Other assets	5,000		7,000	7,000	7,000
Total assets	1,110,000		1,118,000	1,118,000	1,118,000
Liabilities Assumed:
Deposits	869,000		870,000	870,000	870,000
Borrowings	161,000		161,000	161,000	161,000
Other liabilities	3,000		3,000	3,000	3,000
Total liabilities	$ 1,033,000		1,034,000	1,034,000	1,034,000
Net assets acquired			84,000	84,000	84,000
Assets Acquired:
Cash and cash equivalents			0
Investment securities			0
Loans			(21,000)
ACL-Loans			7,000
Premises and equipment			1,000
BOLI			0
Core deposit intangible			19,000
Other assets			2,000
Total assets			8,000
Liabilities Assumed:
Deposits			1,000
Borrowings			0
Other liabilities			0
Total liabilities			1,000
Purchase Price:
Nicolet common stock issued (in shares)	1,262,360
Value of Nicolet common stock consideration	$ 98,000
Cash consideration paid	39,000
Total purchase price	137,000
Goodwill	$ 53,000
County Bancorp, Inc.
Assets Acquired:
Cash and cash equivalents		$ 20,000	20,000	20,000	20,000
Investment securities		301,000	300,000	300,000	300,000
Loans		1,015,000	1,014,000	1,014,000	1,014,000
ACL-Loans		(11,000)	(3,000)	(3,000)	(3,000)
Premises and equipment		21,000	17,000	17,000	17,000
BOLI		33,000	33,000	33,000	33,000
Core deposit intangible		0	7,000	7,000	7,000
Loan servicing rights		20,000	20,000	20,000	20,000
Other assets		6,000	4,000	4,000	4,000
Total assets		1,405,000	1,412,000	1,412,000	1,412,000
Liabilities Assumed:
Deposits		1,027,000	1,030,000	1,030,000	1,030,000
Borrowings		218,000	219,000	219,000	219,000
Other liabilities		8,000	8,000	8,000	8,000
Total liabilities		$ 1,253,000	1,257,000	1,257,000	1,257,000
Net assets acquired			$ 155,000	$ 155,000	155,000
Assets Acquired:
Cash and cash equivalents					0
Investment securities					(1,000)
Loans					(1,000)
ACL-Loans					8,000
Premises and equipment					(4,000)
BOLI					0
Core deposit intangible					7,000
Loan servicing rights					0
Other assets					(2,000)
Total assets					7,000
Liabilities Assumed:
Deposits					3,000
Borrowings					1,000
Other liabilities					0
Total liabilities					$ 4,000
Purchase Price:
Nicolet common stock issued (in shares)		2,366,243
Value of Nicolet common stock consideration		$ 176,000
Cash consideration paid		48,000
Total purchase price		224,000
Write-off prior investment		(1,000)
Goodwill		$ 70,000

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Acquisitions - Summary of the assets acquired (including goodwill) and liabilities assumed, including preliminary purchase price allocation (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended	13 Months Ended
	Sep. 03, 2021	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2022	Dec. 31, 2020
Assets Acquired:
Goodwill		$ 369,849	$ 317,189	$ 369,849	$ 163,151
Purchase Price:
Goodwill		52,660	$ 154,038
Mackinac Financial Corporation
Assets Acquired:
Cash and cash equivalents	$ 448,000	448,000		448,000
Investment securities	104,000	104,000		104,000
Loans	930,000	940,000		940,000
ACL-Loans	(6,000)	(2,000)		(2,000)
Premises and equipment	24,000	21,000		21,000
BOLI	16,000	16,000		16,000
Goodwill	20,000	0		0
Core deposit intangible	4,000	7,000		7,000
Other assets	25,000	22,000		22,000
Total assets	1,565,000	1,556,000		1,556,000
Liabilities Assumed:
Deposits	1,365,000	1,366,000		1,366,000
Borrowings	28,000	29,000		29,000
Other liabilities	13,000	14,000		14,000
Total liabilities	$ 1,406,000	1,409,000		1,409,000
Net assets acquired		$ 147,000		147,000
Assets Acquired:
Cash and cash equivalents				0
Investment securities				0
Loans				10,000
ACL-Loans				4,000
Premises and equipment				(3,000)
BOLI				0
Goodwill				(20,000)
Core deposit intangible				3,000
Other assets				(3,000)
Total assets				(9,000)
Liabilities Assumed:
Deposits				1,000
Borrowings				1,000
Other liabilities				1,000
Total liabilities				$ 3,000
Purchase Price:
Nicolet common stock issued (in shares)	2,337,230
Value of Nicolet common stock consideration	$ 180,000
Cash consideration paid	49,000
Total purchase price	229,000
Write-off prior investment	(2,000)
Goodwill	$ 84,000

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Acquisitions - Carrying value of PCD loans acquired (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Aug. 26, 2022	Dec. 03, 2021	Sep. 03, 2021
Charter Bankshares, Inc.
Business Acquisition [Line Items]
Allowance for credit losses on PCD loans at acquisition	$ 2,000	$ 9,000
Loans	827,000	848,000
Charter Bankshares, Inc. | PCD loans aquired
Business Acquisition [Line Items]
Purchase price of PCD loans at acquisition		24,031
Allowance for credit losses on PCD loans at acquisition		1,709
Loans		$ 25,740
County Bancorp, Inc.
Business Acquisition [Line Items]
Allowance for credit losses on PCD loans at acquisition	3,000		$ 11,000
Loans	1,014,000		1,015,000
County Bancorp, Inc. | PCD loans aquired
Business Acquisition [Line Items]
Purchase price of PCD loans at acquisition			64,948
Allowance for credit losses on PCD loans at acquisition			3,262
Loans			$ 68,210
Mackinac Financial Corporation
Business Acquisition [Line Items]
Allowance for credit losses on PCD loans at acquisition	2,000			$ 6,000
Loans	$ 940,000			930,000
Mackinac Financial Corporation | PCD loans aquired
Business Acquisition [Line Items]
Purchase price of PCD loans at acquisition				10,605
Allowance for credit losses on PCD loans at acquisition				1,896
Loans				$ 12,501

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Acquisitions - Unaudited pro forma information (Details) - County Bancorp, Inc and Mackinac Financial Corporation - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021
Business Acquisition [Line Items]
Total revenue, net of interest expense	$ 84,802	$ 241,287
Net income	$ 16,470	$ 62,243
Diluted earnings per common share (in dollars per share)	$ 1.06	$ 4.09

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Earnings per Common Share - Calculations for basic and diluted earnings (loss) per common share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income	$ 18,510	$ 7,824	$ 66,659	$ 44,347
Weighted average common shares outstanding (in shares)	13,890,066	10,391,896	13,647,973	10,098,492
Effect of dilutive common stock awards (in shares)	420,000	384,000	479,000	405,000
Diluted weighted average common shares outstanding (in shares)	14,310,275	10,775,591	14,126,772	10,503,163
Basic earnings per common share (in dollars per share)	$ 1.33	$ 0.75	$ 4.88	$ 4.39
Diluted earnings per common share (in dollars per share)	$ 1.29	$ 0.73	$ 4.72	$ 4.22

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Earnings per Common Share - Narrative (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Shares excluded from calculation of earnings per common share (in shares)	0.2	0.2	0.1	0.1

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares were available for grant (in shares)	700,000
Stock-based compensation expense	$ 4.6	$ 4.5
Unrecognized compensation cost	$ 19.9
Remaining vesting period over which cost expected to be recognized	4 years
Tax benefit for impact of share based compensation	$ 0.4	0.3
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	$ 3.3	1.7
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grant (in shares)	60,852
Restricted Stock | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 0.7	$ 0.7
Restricted stock grant (in shares)	8,852	9,595

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Stock-Based Compensation - Weighted average assumptions (Details) - Stock Incentive Plan - Stock Options - $ / shares	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%	0.00%
Expected volatility	30.00%	30.00%
Risk-free interest rate	3.03%	1.16%
Expected average life (in years)	7 years	7 years
Weighted average per share fair value of options (in dollars per share)	$ 30.99	$ 26.55

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Stock-Based Compensation - Stock option activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares shares
Weighted Average Exercise Price
Shares surrendered to satisfy exercise price and/or tax withholding requirements (in shares)	6,073
Stock Incentive Plan | Stock Options
Option Shares Outstanding
Beginning balance outstanding (in shares)	1,833,246
Granted (in shares)	132,929
Exercise of stock options (in shares)	(65,661)
Forfeited (in shares)	(8,500)
Ending balance outstanding (in shares)	1,892,014
Weighted Average Exercise Price
Beginning balance outstanding (in dollars per share) | $ / shares	$ 57.69
Granted (in dollars per share) | $ / shares	81.04
Exercise of stock options (in dollars per share) | $ / shares	41.26
Forfeited (in dollars per share) | $ / shares	77.62
Ending balance outstanding (in dollars per share) | $ / shares	$ 59.81
Exercisable (in shares)	1,207,585
Exercisable (in dollars per share) | $ / shares	$ 50.84
Weighted average remaining life outstanding (in years)	6 years 2 months 12 days
Weighted average remaining life exercisable (in years)	4 years 10 months 24 days
Aggregate intrinsic value outstanding | $	$ 24,920
Aggregate intrinsic value exercisable | $	$ 24,324

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Stock-Based Compensation - Restricted stock award activity (Details)	9 Months Ended
	Sep. 30, 2022 $ / shares shares
Restricted Shares Outstanding
Shares surrendered to satisfy exercise price and/or tax withholding requirements (in shares)	6,073
Restricted Stock
Weighted Average Grant Date Fair Value
Beginning balance outstanding (in dollars per share) | $ / shares	$ 71.42
Granted (in dollars per share) | $ / shares	75.99
Vested (in dollars per share) | $ / shares	71.51
Forfeited (in dollars per share) | $ / shares	56.01
Ending balance outstanding (in dollars per share) | $ / shares	$ 75.34
Restricted Shares Outstanding
Beginning balance outstanding (in shares)	25,801
Granted (in shares)	60,852
Vested (in shares)	(13,127)
Forfeited (in shares)	(600)
Ending balance outstanding (in shares)	72,926
Shares surrendered to satisfy exercise price and/or tax withholding requirements (in shares)	465

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Securities and Other Investments - Amortized costs and fair value of securities AFS and HTM (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,034,993	$ 917,412
Gross Unrealized Gains	33	9,777
Gross Unrealized Losses	85,429	5,528
Estimated Fair Value	$ 949,597	$ 921,661
Fair Value as % of Total	100.00%	100.00%
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 686,424	$ 651,803
Gross Unrealized Gains	66	99
Gross Unrealized Losses	58,851	3,508
Estimated Fair Value	$ 627,639	$ 648,394
Fair Value as % of Total	100.00%	100.00%
U.S. government agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 194,295	$ 192,506
Gross Unrealized Gains	0	6
Gross Unrealized Losses	9,532	1,235
Estimated Fair Value	$ 184,763	$ 191,277
Fair Value as % of Total	19.00%	21.00%
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 506,952	$ 508,810
Gross Unrealized Gains	65	0
Gross Unrealized Losses	38,590	2,740
Estimated Fair Value	$ 468,427	$ 506,070
Fair Value as % of Total	74.00%	78.00%
State, county and municipals
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 454,740	$ 311,717
Gross Unrealized Gains	32	3,222
Gross Unrealized Losses	42,908	2,202
Estimated Fair Value	$ 411,864	$ 312,737
Fair Value as % of Total	43.00%	34.00%
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 39,121	$ 42,876
Gross Unrealized Gains	1	10
Gross Unrealized Losses	3,363	173
Estimated Fair Value	$ 35,759	$ 42,713
Fair Value as % of Total	6.00%	7.00%
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 239,430	$ 270,017
Gross Unrealized Gains	1	3,090
Gross Unrealized Losses	25,996	1,845
Estimated Fair Value	$ 213,435	$ 271,262
Fair Value as % of Total	23.00%	29.00%
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 140,351	$ 100,117
Gross Unrealized Gains	0	89
Gross Unrealized Losses	16,898	595
Estimated Fair Value	$ 123,453	$ 99,611
Fair Value as % of Total	20.00%	15.00%
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 146,528	$ 143,172
Gross Unrealized Gains	0	3,459
Gross Unrealized Losses	6,993	246
Estimated Fair Value	$ 139,535	$ 146,385
Fair Value as % of Total	15.00%	16.00%

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Securities and Other Investments - Narrative (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Investments securities pledged as collateral	$ 786,000,000		$ 277,000,000
Accrued interest on investment securities	7,000,000		5,000,000
Allowance for credit losses on securities AFS	0		0
Schedule of Held-to-maturity Securities [Line Items]
Proceeds from sales of securities AFS	23,984,000	$ 15,975,000
Charter Bankshares, Inc.
Schedule of Held-to-maturity Securities [Line Items]
Proceeds from sales of securities AFS	21,000,000
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Allowance for credit losses on securities HTM	$ 0		$ 0

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Securities and Other Investments - Gross unrealized losses and the related fair value of investment securities (Details) $ in Thousands	Sep. 30, 2022 USD ($) Security	Dec. 31, 2021 USD ($) Security
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 685,287	$ 455,210
Less than 12 months, unrealized losses	55,850	5,216
12 months or more, fair value	238,321	7,845
12 months or more, unrealized losses	29,579	312
Total, fair value	923,608	463,055
Total, unrealized losses	$ 85,429	$ 5,528
Total, number of securities | Security	1,402	315
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 601,535	$ 606,169
Less than 12 months, unrealized losses	56,949	3,508
12 months or more, fair value	10,780	0
12 months or more, unrealized losses	1,902	0
Total, fair value	612,315	606,169
Total, unrealized losses	$ 58,851	$ 3,508
Total, number of securities | Security	170	127
U.S. government agency securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 73,427	$ 190,432
Less than 12 months, unrealized losses	3,649	1,235
12 months or more, fair value	111,307	0
12 months or more, unrealized losses	5,883	0
Total, fair value	184,734	190,432
Total, unrealized losses	$ 9,532	$ 1,235
Total, number of securities | Security	18	11
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 459,059	$ 505,938
Less than 12 months, unrealized losses	38,590	2,740
12 months or more, fair value	0	0
12 months or more, unrealized losses	0	0
Total, fair value	459,059	505,938
Total, unrealized losses	$ 38,590	$ 2,740
Total, number of securities | Security	6	9
State, county and municipals
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 325,212	$ 103,950
Less than 12 months, unrealized losses	29,803	2,119
12 months or more, fair value	66,031	1,777
12 months or more, unrealized losses	13,105	83
Total, fair value	391,243	105,727
Total, unrealized losses	$ 42,908	$ 2,202
Total, number of securities | Security	906	132
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 25,308	$ 30,898
Less than 12 months, unrealized losses	2,663	173
12 months or more, fair value	4,495	0
12 months or more, unrealized losses	700	0
Total, fair value	29,803	30,898
Total, unrealized losses	$ 3,363	$ 173
Total, number of securities | Security	58	46
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 163,160	$ 137,561
Less than 12 months, unrealized losses	17,180	1,616
12 months or more, fair value	49,315	6,068
12 months or more, unrealized losses	8,816	229
Total, fair value	212,475	143,629
Total, unrealized losses	$ 25,996	$ 1,845
Total, number of securities | Security	384	159
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, fair value	$ 117,168	$ 69,333
Less than 12 months, unrealized losses	15,696	595
12 months or more, fair value	6,285	0
12 months or more, unrealized losses	1,202	0
Total, fair value	123,453	69,333
Total, unrealized losses	$ 16,898	$ 595
Total, number of securities | Security	106	72
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 123,488	$ 23,267
Less than 12 months, unrealized losses	5,218	246
12 months or more, fair value	11,668	0
12 months or more, unrealized losses	1,775	0
Total, fair value	135,156	23,267
Total, unrealized losses	$ 6,993	$ 246
Total, number of securities | Security	94	13

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Securities and Other Investments - Amortized cost and fair values of investment securities by contractual maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Amortized Cost
Due in less than one year	$ 220,008
Due in one year through five years	189,795
Due after five years through ten years	233,100
Due after ten years	152,660
Allocated and single maturity date	795,563
Amortized Cost	1,034,993	$ 917,412
Fair Value
Due in less than one year	214,856
Due in one year through five years	180,208
Due after five years through ten years	206,362
Due after ten years	134,736
Allocated and single maturity date	736,162
Fair Value	949,597	921,661
Amortized Cost
Due in less than one year	5,032
Due in one year through five years	510,548
Due after five years through ten years	26,740
Due after ten years	3,753
Allocated and single maturity date	546,073
Amortized Cost	686,424	651,803
Fair Value
Due in less than one year	5,022
Due in one year through five years	471,106
Due after five years through ten years	24,404
Due after ten years	3,654
Allocated and single maturity date	504,186
Fair Value	627,639	648,394
Mortgage-backed securities
Amortized Cost
Mortgage-backed securities	239,430
Amortized Cost	239,430	270,017
Fair Value
Mortgage-backed securities	213,435
Fair Value	213,435	271,262
Amortized Cost
Due in less than one year	140,351
Amortized Cost	140,351	100,117
Fair Value
Mortgage-backed securities	123,453
Fair Value	$ 123,453	$ 99,611

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Securities and Other Investments - Proceeds and realized gains or losses from the sale of AFS securities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Gross gains	$ 20	$ 4
Gross losses	(5)	(17)
Gains (losses) on sales of securities AFS, net	15	(13)
Proceeds from sales of securities AFS	23,984	15,975
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of securities AFS	23,984	$ 15,975
Charter Bankshares, Inc.
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of securities AFS	21,000
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of securities AFS	$ 21,000

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Securities and Other Investments - Other Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Federal Reserve Bank stock	$ 34,722	$ 20,973
Federal Home Loan Bank (“FHLB”) stock	22,939	10,545
Equity securities with readily determinable fair values	4,482	5,660
Other investments	17,136	6,830
Total other investments	$ 79,279	$ 44,008

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Loans, Allowance for Credit Losses - Loans, and Credit Quality - Summary of loan composition (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 5,984,437		$ 4,621,836
Less allowance for credit losses - Loans (“ACL-Loans”)	60,348	$ 50,655	49,672	$ 38,399	$ 32,561	$ 32,173
Loans, net	$ 5,924,089		$ 4,572,164
Allowance for credit losses - Loans to loans (in percent)	1.01%		1.07%
% of Total	100.00%		100.00%
Retail & other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 56,259		$ 50,807
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 1,055		$ 932			557
% of Total	1.00%		1.00%
Commercial | Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,268,252		$ 1,042,256
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 14,593		$ 12,613			11,644
% of Total	21.00%		23.00%
Commercial | Owner-occupied commercial real estate (“CRE”)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 954,933		$ 787,189
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 8,698		$ 7,222			5,872
% of Total	16.00%		17.00%
Commercial | Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,017,498		$ 794,728
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 10,394		$ 9,547			1,395
% of Total	17.00%		17.00%
Commercial real estate | CRE investment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,132,951		$ 818,061
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 11,673		$ 8,462			5,441
% of Total	19.00%		18.00%
Commercial real estate | Construction & land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 306,446		$ 213,035
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 2,417		$ 1,812			984
% of Total	5.00%		5.00%
Residential | Residential first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 970,384		$ 713,983
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 8,294		$ 6,844			4,773
% of Total	16.00%		15.00%
Residential | Residential junior mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 176,428		$ 131,424
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 1,878		$ 1,340			1,086
% of Total	3.00%		3.00%
Residential | Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 101,286		$ 70,353
Less allowance for credit losses - Loans (“ACL-Loans”)	$ 1,346		$ 900			$ 421
% of Total	2.00%		1.00%

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Loans, Allowance for Credit Losses - Loans, and Credit Quality - Narrative (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) branch	Dec. 31, 2021 USD ($) branch
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans (less than)	$ 5,984,437,000	$ 4,621,836,000
Accrued interest on loans	14,000,000	11,000,000
Material loans criteria for ACL-Loans adequacy calculation	250,000
Reserve for unfunded commitments	$ 3,000,000	$ 2,400,000
Number of loans classified as troubled debt with subsequent default | branch	0	0
Commercial | Paycheck Protection Program Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans (less than)	$ 1,000,000	$ 25,000,000

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Loans, Allowance for Credit Losses - Loans, and Credit Quality - Roll forward of allowance for credit losses-loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 50,655	$ 32,561	$ 49,672	$ 32,173	$ 32,173
ACL on PCD loans acquired	1,709	1,896	1,709	1,896	5,159
Provision for credit losses	8,200	4,000	9,100	4,500	12,500
Charge-offs	(300)	(107)	(442)	(436)	(513)
Recoveries	84	49	309	266	353
Net (charge-offs) recoveries	(216)	(58)	(133)	(170)	(160)
Ending balance	$ 60,348	$ 38,399	$ 60,348	$ 38,399	$ 49,672

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Loans, Allowance for Credit Losses - Loans, and Credit Quality - Activity in ACL-Loans by portfolio segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
ACL-Loans
Beginning balance	$ 50,655	$ 32,561	$ 49,672	$ 32,173	$ 32,173
ACL on PCD loans acquired	1,709	1,896	1,709	1,896	5,159
Provision for credit losses	8,200	4,000	9,100	4,500	12,500
Charge-offs	(300)	(107)	(442)	(436)	(513)
Recoveries	84	49	309	266	353
Net (charge-offs) recoveries	(216)	(58)	(133)	(170)	(160)
Ending balance	60,348	$ 38,399	$ 60,348	38,399	$ 49,672
As % of ACL-Loans			100.00%		100.00%
Retail & other
ACL-Loans
Beginning balance			$ 932	557	$ 557
ACL on PCD loans acquired			0		3
Provision for credit losses			291		443
Charge-offs			(189)		(106)
Recoveries			21		35
Net (charge-offs) recoveries			(168)		(71)
Ending balance	1,055		$ 1,055		$ 932
As % of ACL-Loans			2.00%		2.00%
Commercial | Commercial & industrial
ACL-Loans
Beginning balance			$ 12,613	11,644	$ 11,644
ACL on PCD loans acquired			1,408		723
Provision for credit losses			621		196
Charge-offs			(152)		(242)
Recoveries			103		292
Net (charge-offs) recoveries			(49)		50
Ending balance	14,593		$ 14,593		$ 12,613
As % of ACL-Loans			24.00%		25.00%
Commercial | Owner-occupied CRE
ACL-Loans
Beginning balance			$ 7,222	5,872	$ 5,872
ACL on PCD loans acquired			156		1,045
Provision for credit losses			1,356		305
Charge-offs			(36)		0
Recoveries			0		0
Net (charge-offs) recoveries			(36)		0
Ending balance	8,698		$ 8,698		$ 7,222
As % of ACL-Loans			15.00%		14.00%
Commercial | Agricultural
ACL-Loans
Beginning balance			$ 9,547	1,395	$ 1,395
ACL on PCD loans acquired			0		2,585
Provision for credit losses			847		5,615
Charge-offs			0		(48)
Recoveries			0		0
Net (charge-offs) recoveries			0		(48)
Ending balance	10,394		$ 10,394		$ 9,547
As % of ACL-Loans			17.00%		19.00%
Commercial real estate | CRE investment
ACL-Loans
Beginning balance			$ 8,462	5,441	$ 5,441
ACL on PCD loans acquired			38		415
Provision for credit losses			3,004		2,608
Charge-offs			0		(4)
Recoveries			169		2
Net (charge-offs) recoveries			169		(2)
Ending balance	11,673		$ 11,673		$ 8,462
As % of ACL-Loans			19.00%		17.00%
Commercial real estate | Construction & land development
ACL-Loans
Beginning balance			$ 1,812	984	$ 984
ACL on PCD loans acquired			2		103
Provision for credit losses			603		725
Charge-offs			0		0
Recoveries			0		0
Net (charge-offs) recoveries			0		0
Ending balance	2,417		$ 2,417		$ 1,812
As % of ACL-Loans			4.00%		4.00%
Residential | Residential first mortgage
ACL-Loans
Beginning balance			$ 6,844	4,773	$ 4,773
ACL on PCD loans acquired			93		272
Provision for credit losses			1,415		1,892
Charge-offs			(65)		(113)
Recoveries			7		20
Net (charge-offs) recoveries			(58)		(93)
Ending balance	8,294		$ 8,294		$ 6,844
As % of ACL-Loans			14.00%		14.00%
Residential | Residential junior mortgage
ACL-Loans
Beginning balance			$ 1,340	1,086	$ 1,086
ACL on PCD loans acquired			12		13
Provision for credit losses			517		237
Charge-offs			0		0
Recoveries			9		4
Net (charge-offs) recoveries			9		4
Ending balance	1,878		$ 1,878		$ 1,340
As % of ACL-Loans			3.00%		3.00%
Residential | Residential construction
ACL-Loans
Beginning balance			$ 900	$ 421	$ 421
ACL on PCD loans acquired			0		0
Provision for credit losses			446		479
Charge-offs			0		0
Recoveries			0		0
Net (charge-offs) recoveries			0		0
Ending balance	$ 1,346		$ 1,346		$ 900
As % of ACL-Loans			2.00%		2.00%

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Loans, Allowance for Credit Losses - Loans, and Credit Quality - Provision for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Receivables [Abstract]
Loans	$ 8,200	$ 4,000	$ 9,100	$ 4,500	$ 12,500
Unfunded Commitments	400	2,000	550	2,000	2,400
Investment securities	0	0	0	0	0
Total	$ 8,600	$ 6,000	$ 9,650	$ 6,500	$ 14,900

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Loans, Allowance for Credit Losses - Loans, and Credit Quality - Collateral dependent loans by portfolio segment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 31,622	$ 38,499
Without an Allowance	23,049	31,279
With an Allowance	8,573	7,220
Allowance Allocation	1,405	2,269
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	22,151	27,685
Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	9,471	10,814
Retail & other
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Without an Allowance	0	0
With an Allowance	0	0
Allowance Allocation	0	0
Retail & other | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Retail & other | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial | Commercial & industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	3,032	2,296
Without an Allowance	1,443	1,842
With an Allowance	1,589	454
Allowance Allocation	661	258
Commercial | Commercial & industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial | Commercial & industrial | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	3,032	2,296
Commercial | Owner-occupied CRE
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,205	3,537
Without an Allowance	3,526	1,315
With an Allowance	1,679	2,222
Allowance Allocation	297	552
Commercial | Owner-occupied CRE | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	5,205	3,537
Commercial | Owner-occupied CRE | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial | Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	20,413	28,155
Without an Allowance	16,900	25,310
With an Allowance	3,513	2,845
Allowance Allocation	205	841
Commercial | Agricultural | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	13,974	19,637
Commercial | Agricultural | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	6,439	8,518
Commercial real estate | CRE investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	2,196	3,000
Without an Allowance	404	1,684
With an Allowance	1,792	1,316
Allowance Allocation	242	407
Commercial real estate | CRE investment | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	2,196	3,000
Commercial real estate | CRE investment | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Commercial real estate | Construction & land development
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	685	1,038
Without an Allowance	685	655
With an Allowance	0	383
Allowance Allocation	0	211
Commercial real estate | Construction & land development | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	685	1,038
Commercial real estate | Construction & land development | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential | Residential first mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	91	473
Without an Allowance	91	473
With an Allowance	0	0
Allowance Allocation	0	0
Residential | Residential first mortgage | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	91	473
Residential | Residential first mortgage | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential | Residential junior mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Without an Allowance	0	0
With an Allowance	0	0
Allowance Allocation	0	0
Residential | Residential junior mortgage | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential | Residential junior mortgage | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential | Residential construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Without an Allowance	0	0
With an Allowance	0	0
Allowance Allocation	0	0
Residential | Residential construction | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential | Residential construction | Other Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 0	$ 0

XML

Loans, Allowance for Credit Losses - Loans, and Credit Quality - Summary of loans by past due status (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans	$ 5,984,437	$ 4,621,836
Percent of total loans	100.00%	100.00%
30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	$ 4,059	$ 3,292
Percent past due	0.10%	0.10%
90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	$ 38,326	$ 44,154
Percent past due	0.60%	0.90%
Current
Financing Receivable, Past Due [Line Items]
Loans	$ 5,942,052	$ 4,574,390
Percent of current loans	99.30%	99.00%
Retail & other
Financing Receivable, Past Due [Line Items]
Loans	$ 56,259	$ 50,807
Retail & other | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	138	115
Retail & other | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	99	94
Retail & other | Current
Financing Receivable, Past Due [Line Items]
Loans	56,022	50,598
Commercial | Commercial & industrial
Financing Receivable, Past Due [Line Items]
Loans	1,268,252	1,042,256
Commercial | Commercial & industrial | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	954	94
Commercial | Commercial & industrial | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	3,052	1,908
Commercial | Commercial & industrial | Current
Financing Receivable, Past Due [Line Items]
Loans	1,264,246	1,040,254
Commercial | Owner-occupied CRE
Financing Receivable, Past Due [Line Items]
Loans	954,933	787,189
Commercial | Owner-occupied CRE | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	513	0
Commercial | Owner-occupied CRE | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	5,806	4,220
Commercial | Owner-occupied CRE | Current
Financing Receivable, Past Due [Line Items]
Loans	948,614	782,969
Commercial | Agricultural
Financing Receivable, Past Due [Line Items]
Loans	1,017,498	794,728
Commercial | Agricultural | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	0	108
Commercial | Agricultural | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	20,646	28,367
Commercial | Agricultural | Current
Financing Receivable, Past Due [Line Items]
Loans	996,852	766,253
Commercial real estate | CRE investment
Financing Receivable, Past Due [Line Items]
Loans	1,132,951	818,061
Commercial real estate | CRE investment | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	27	114
Commercial real estate | CRE investment | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	3,343	4,119
Commercial real estate | CRE investment | Current
Financing Receivable, Past Due [Line Items]
Loans	1,129,581	813,828
Commercial real estate | Construction & land development
Financing Receivable, Past Due [Line Items]
Loans	306,446	213,035
Commercial real estate | Construction & land development | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate | Construction & land development | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	794	1,071
Commercial real estate | Construction & land development | Current
Financing Receivable, Past Due [Line Items]
Loans	305,652	211,964
Residential | Residential first mortgage
Financing Receivable, Past Due [Line Items]
Loans	970,384	713,983
Residential | Residential first mortgage | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	1,621	2,592
Residential | Residential first mortgage | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	4,309	4,132
Residential | Residential first mortgage | Current
Financing Receivable, Past Due [Line Items]
Loans	964,454	707,259
Residential | Residential junior mortgage
Financing Receivable, Past Due [Line Items]
Loans	176,428	131,424
Residential | Residential junior mortgage | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	249	23
Residential | Residential junior mortgage | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	277	243
Residential | Residential junior mortgage | Current
Financing Receivable, Past Due [Line Items]
Loans	175,902	131,158
Residential | Residential construction
Financing Receivable, Past Due [Line Items]
Loans	101,286	70,353
Residential | Residential construction | 30-89 Days Past Due (accruing)
Financing Receivable, Past Due [Line Items]
Loans	557	246
Residential | Residential construction | 90 Days & Over or nonaccrual
Financing Receivable, Past Due [Line Items]
Loans	0	0
Residential | Residential construction | Current
Financing Receivable, Past Due [Line Items]
Loans	$ 100,729	$ 70,107

XML

Loans, Allowance for Credit Losses - Loans, and Credit Quality - Nonaccrual loans by portfolio segment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 38,326	$ 44,154
Percent of total loans	0.60%	0.90%
% of Total	100.00%	100.00%
Retail & other
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 99	$ 94
% of Total	0.00%	0.00%
Commercial | Commercial & industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 3,052	$ 1,908
% of Total	8.00%	4.00%
Commercial | Owner-occupied CRE
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 5,806	$ 4,220
% of Total	15.00%	10.00%
Commercial | Agricultural
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 20,646	$ 28,367
% of Total	54.00%	64.00%
Commercial real estate | CRE investment
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 3,343	$ 4,119
% of Total	9.00%	9.00%
Commercial real estate | Construction & land development
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 794	$ 1,071
% of Total	2.00%	3.00%
Residential | Residential first mortgage
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 4,309	$ 4,132
% of Total	11.00%	9.00%
Residential | Residential junior mortgage
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 277	$ 243
% of Total	1.00%	1.00%
Residential | Residential construction
Financing Receivable, Past Due [Line Items]
Nonaccrual Loans	$ 0	$ 0
% of Total	0.00%	0.00%

XML

Loans, Allowance for Credit Losses - Loans, and Credit Quality - Summary of loans by loan risk categories (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	$ 1,246,029	$ 1,211,408
2021/2020	1,310,082	733,060
2020/2019	721,919	592,366
2019/2018	463,319	306,359
2018/2017	329,121	283,629
Prior	1,102,946	771,550
Revolving	805,725	722,034
Revolving to Term	5,296	1,430
Loans	$ 5,984,437	$ 4,621,836
Percent of total	100.00%	100.00%
Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 5,622,985	$ 4,294,134
Percent of total	93.90%	92.90%
Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 230,584	$ 224,741
Percent of total	3.90%	4.90%
Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 46,102	$ 5,703
Percent of total	0.80%	0.10%
Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 84,766	$ 97,258
Percent of total	1.40%	2.10%
Retail & other
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	$ 11,363	$ 13,676
2021/2020	9,873	6,910
2020/2019	4,767	5,828
2019/2018	3,679	2,072
2018/2017	1,250	1,882
Prior	24,660	20,164
Revolving	667	275
Revolving to Term	0	0
Loans	56,259	50,807
Retail & other | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	11,363	13,676
2021/2020	9,873	6,886
2020/2019	4,751	5,826
2019/2018	3,677	2,053
2018/2017	1,220	1,882
Prior	24,608	20,102
Revolving	667	275
Revolving to Term	0	0
Loans	56,159	50,700
Retail & other | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	0	0
Retail & other | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	0	0
Retail & other | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	24
2020/2019	16	2
2019/2018	2	19
2018/2017	30	0
Prior	52	62
Revolving	0	0
Revolving to Term	0	0
Loans	100	107
Commercial | Commercial & industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	262,610	284,652
2021/2020	255,619	148,530
2020/2019	123,529	104,779
2019/2018	81,743	76,311
2018/2017	56,088	56,460
Prior	100,806	74,178
Revolving	387,857	297,346
Revolving to Term	0	0
Loans	1,268,252	1,042,256
Commercial | Commercial & industrial | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	254,713	282,369
2021/2020	246,195	146,131
2020/2019	108,418	99,702
2019/2018	76,355	69,478
2018/2017	52,099	50,557
Prior	83,341	71,247
Revolving	349,324	288,115
Revolving to Term	0	0
Loans	1,170,445	1,007,599
Commercial | Commercial & industrial | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	7,187	1,685
2021/2020	7,423	1,905
2020/2019	11,052	4,369
2019/2018	2,084	5,809
2018/2017	2,734	4,860
Prior	4,344	2,097
Revolving	18,807	8,408
Revolving to Term	0	0
Loans	53,631	29,133
Commercial | Commercial & industrial | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	158	598
2021/2020	1,649	54
2020/2019	675	16
2019/2018	638	687
2018/2017	453	67
Prior	11,972	91
Revolving	14,718	391
Revolving to Term	0	0
Loans	30,263	1,904
Commercial | Commercial & industrial | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	552	0
2021/2020	352	440
2020/2019	3,384	692
2019/2018	2,666	337
2018/2017	802	976
Prior	1,149	743
Revolving	5,008	432
Revolving to Term	0	0
Loans	13,913	3,620
Commercial | Owner-occupied CRE
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	131,362	162,331
2021/2020	195,086	100,443
2020/2019	120,690	115,311
2019/2018	110,431	94,671
2018/2017	97,579	81,644
Prior	291,661	224,198
Revolving	8,124	8,591
Revolving to Term	0	0
Loans	954,933	787,189
Commercial | Owner-occupied CRE | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	128,054	154,578
2021/2020	189,922	94,300
2020/2019	111,622	105,226
2019/2018	104,840	92,128
2018/2017	93,619	75,583
Prior	269,617	202,816
Revolving	7,952	6,945
Revolving to Term	0	0
Loans	905,626	731,576
Commercial | Owner-occupied CRE | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	2,868	7,753
2021/2020	4,750	3,019
2020/2019	2,824	6,529
2019/2018	2,826	2,543
2018/2017	3,875	2,515
Prior	14,325	13,905
Revolving	172	656
Revolving to Term	0	0
Loans	31,640	36,920
Commercial | Owner-occupied CRE | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	1,642
2019/2018	2,388	0
2018/2017	0	20
Prior	887	805
Revolving	0	0
Revolving to Term	0	0
Loans	3,275	2,467
Commercial | Owner-occupied CRE | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	440	0
2021/2020	414	3,124
2020/2019	6,244	1,914
2019/2018	377	0
2018/2017	85	3,526
Prior	6,832	6,672
Revolving	0	990
Revolving to Term	0	0
Loans	14,392	16,226
Commercial | Agricultural
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	257,617	146,522
2021/2020	174,031	96,036
2020/2019	97,246	34,333
2019/2018	30,270	28,003
2018/2017	26,126	47,511
Prior	203,697	167,198
Revolving	228,511	275,125
Revolving to Term	0	0
Loans	1,017,498	794,728
Commercial | Agricultural | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	238,387	128,404
2021/2020	154,364	87,844
2020/2019	93,529	28,416
2019/2018	26,185	22,887
2018/2017	20,967	36,298
Prior	135,426	86,104
Revolving	195,784	235,743
Revolving to Term	0	0
Loans	864,642	625,696
Commercial | Agricultural | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	12,109	14,796
2021/2020	15,525	4,183
2020/2019	2,823	2,391
2019/2018	2,028	915
2018/2017	1,504	3,912
Prior	42,561	48,373
Revolving	23,090	26,778
Revolving to Term	0	0
Loans	99,640	101,348
Commercial | Agricultural | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	49	38
2021/2020	1,491	38
2020/2019	31	36
2019/2018	33	0
2018/2017	0	86
Prior	5,322	1,049
Revolving	425	85
Revolving to Term	0	0
Loans	7,351	1,332
Commercial | Agricultural | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	7,072	3,284
2021/2020	2,651	3,971
2020/2019	863	3,490
2019/2018	2,024	4,201
2018/2017	3,655	7,215
Prior	20,388	31,672
Revolving	9,212	12,519
Revolving to Term	0	0
Loans	45,865	66,352
Commercial real estate | CRE investment
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	168,715	203,355
2021/2020	230,373	142,128
2020/2019	200,272	143,259
2019/2018	146,136	60,234
2018/2017	83,051	73,104
Prior	290,093	184,461
Revolving	14,311	11,520
Revolving to Term	0	0
Loans	1,132,951	818,061
Commercial real estate | CRE investment | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	167,931	192,274
2021/2020	228,709	139,127
2020/2019	195,020	136,306
2019/2018	141,749	56,148
2018/2017	79,790	65,026
Prior	261,027	162,991
Revolving	13,890	11,289
Revolving to Term	0	0
Loans	1,088,116	763,161
Commercial real estate | CRE investment | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	784	11,081
2021/2020	1,664	3,001
2020/2019	5,252	6,497
2019/2018	3,131	3,945
2018/2017	983	6,726
Prior	24,997	17,527
Revolving	0	0
Revolving to Term	0	0
Loans	36,811	48,777
Commercial real estate | CRE investment | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	1,183	0
2018/2017	2,029	0
Prior	1,078	0
Revolving	206	0
Revolving to Term	0	0
Loans	4,496	0
Commercial real estate | CRE investment | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	456
2019/2018	73	141
2018/2017	249	1,352
Prior	2,991	3,943
Revolving	215	231
Revolving to Term	0	0
Loans	3,528	6,123
Commercial real estate | Construction & land development
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	82,769	82,531
2021/2020	139,561	72,415
2020/2019	15,958	13,068
2019/2018	10,492	20,430
2018/2017	27,553	1,201
Prior	15,752	12,447
Revolving	14,361	10,943
Revolving to Term	0	0
Loans	306,446	213,035
Commercial real estate | Construction & land development | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	82,695	81,891
2021/2020	139,561	72,415
2020/2019	15,958	12,547
2019/2018	9,979	19,511
2018/2017	27,553	1,184
Prior	14,936	11,274
Revolving	14,361	10,943
Revolving to Term	0	0
Loans	305,043	209,765
Commercial real estate | Construction & land development | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	40	640
2021/2020	0	0
2020/2019	0	521
2019/2018	513	919
2018/2017	0	0
Prior	22	119
Revolving	0	0
Revolving to Term	0	0
Loans	575	2,199
Commercial real estate | Construction & land development | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	0	0
Commercial real estate | Construction & land development | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	34	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	17
Prior	794	1,054
Revolving	0	0
Revolving to Term	0	0
Loans	828	1,071
Residential | Residential first mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	262,463	256,795
2021/2020	268,146	153,461
2020/2019	152,653	172,359
2019/2018	77,189	22,793
2018/2017	35,391	20,220
Prior	171,944	86,511
Revolving	2,595	1,840
Revolving to Term	3	4
Loans	970,384	713,983
Residential | Residential first mortgage | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	261,535	256,082
2021/2020	266,465	152,932
2020/2019	151,436	168,705
2019/2018	73,915	22,568
2018/2017	32,871	20,147
Prior	167,038	82,479
Revolving	2,595	1,840
Revolving to Term	3	4
Loans	955,858	704,757
Residential | Residential first mortgage | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	928	713
2021/2020	1,349	529
2020/2019	1,006	3,094
2019/2018	2,147	0
2018/2017	2,295	0
Prior	418	1,508
Revolving	0	0
Revolving to Term	0	0
Loans	8,143	5,844
Residential | Residential first mortgage | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	717	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	717	0
Residential | Residential first mortgage | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	332	0
2020/2019	211	560
2019/2018	410	225
2018/2017	225	73
Prior	4,488	2,524
Revolving	0	0
Revolving to Term	0	0
Loans	5,666	3,382
Residential | Residential junior mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	7,864	3,194
2021/2020	5,084	3,139
2020/2019	5,314	3,222
2019/2018	3,254	1,501
2018/2017	1,745	535
Prior	3,669	2,013
Revolving	144,205	116,394
Revolving to Term	5,293	1,426
Loans	176,428	131,424
Residential | Residential junior mortgage | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	7,864	3,194
2021/2020	4,875	3,139
2020/2019	5,314	3,021
2019/2018	3,227	1,501
2018/2017	1,745	512
Prior	3,439	1,969
Revolving	144,053	115,817
Revolving to Term	5,293	1,426
Loans	175,810	130,579
Residential | Residential junior mortgage | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	29
2019/2018	0	0
2018/2017	0	0
Prior	144	0
Revolving	0	439
Revolving to Term	0	0
Loans	144	468
Residential | Residential junior mortgage | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	0	0
Residential | Residential junior mortgage | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	209	0
2020/2019	0	172
2019/2018	27	0
2018/2017	0	23
Prior	86	44
Revolving	152	138
Revolving to Term	0	0
Loans	474	377
Residential | Residential construction
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	61,266	58,352
2021/2020	32,309	9,998
2020/2019	1,490	207
2019/2018	125	344
2018/2017	338	1,072
Prior	664	380
Revolving	5,094	0
Revolving to Term	0	0
Loans	101,286	70,353
Residential | Residential construction | Grades 1-4
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	61,266	58,352
2021/2020	32,309	9,998
2020/2019	1,490	155
2019/2018	125	344
2018/2017	338	1,072
Prior	664	380
Revolving	5,094	0
Revolving to Term	0	0
Loans	101,286	70,301
Residential | Residential construction | Grade 5
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	52
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	0	52
Residential | Residential construction | Grade 6
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	0	0
Residential | Residential construction | Grade 7
Financing Receivable, Credit Quality Indicator [Line Items]
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
Prior	0	0
Revolving	0	0
Revolving to Term	0	0
Loans	$ 0	$ 0

XML

Loans, Allowance for Credit Losses - Loans, and Credit Quality - Trouble Debt Restructuring (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 17,430	$ 25,686
Number of loans classified as troubled debt | loan	36	44
Pre-modification balance	$ 22,466	$ 26,890
Troubled debt restructuring current outstanding balance	17,430	25,686
Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	5,443
Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	17,430	20,243
Commercial | Commercial & industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 223	$ 197
Number of loans classified as troubled debt | loan	4	2
Pre-modification balance	$ 240	$ 200
Troubled debt restructuring current outstanding balance	223	197
Commercial | Commercial & industrial | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	0
Commercial | Commercial & industrial | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	223	197
Commercial | Owner-occupied CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 2,639	$ 6,354
Number of loans classified as troubled debt | loan	3	6
Pre-modification balance	$ 5,138	$ 6,913
Troubled debt restructuring current outstanding balance	2,639	6,354
Commercial | Owner-occupied CRE | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	3,466
Commercial | Owner-occupied CRE | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	2,639	2,888
Commercial | Agricultural
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 14,181	$ 16,835
Number of loans classified as troubled debt | loan	26	31
Pre-modification balance	$ 16,237	$ 17,228
Troubled debt restructuring current outstanding balance	14,181	16,835
Commercial | Agricultural | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	0
Commercial | Agricultural | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	14,181	16,835
Commercial real estate | CRE investment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 299	$ 918
Number of loans classified as troubled debt | loan	1	1
Pre-modification balance	$ 301	$ 919
Troubled debt restructuring current outstanding balance	299	918
Commercial real estate | CRE investment | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	918
Commercial real estate | CRE investment | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	299	0
Commercial real estate | Construction & land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 75	$ 308
Number of loans classified as troubled debt | loan	1	1
Pre-modification balance	$ 533	$ 533
Troubled debt restructuring current outstanding balance	75	308
Commercial real estate | Construction & land development | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	0
Commercial real estate | Construction & land development | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	75	308
Residential | Residential first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 13	$ 928
Number of loans classified as troubled debt | loan	1	2
Pre-modification balance	$ 17	$ 931
Troubled debt restructuring current outstanding balance	13	928
Residential | Residential first mortgage | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	913
Residential | Residential first mortgage | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	13	15
Residential | Residential junior mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 0	$ 146
Number of loans classified as troubled debt | loan	0	1
Pre-modification balance	$ 0	$ 166
Troubled debt restructuring current outstanding balance	0	146
Residential | Residential junior mortgage | Performing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	0	146
Residential | Residential junior mortgage | Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Troubled debt restructurings	$ 0	$ 0

XML

Goodwill and Other Intangibles and Servicing Rights - Goodwill and other intangibles (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 369,849	$ 317,189	$ 163,151
Other intangibles	37,268	22,303
Goodwill and other intangibles, net	407,117	339,492
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Other intangibles	34,791	19,445
Customer list intangibles
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 2,477	$ 2,858

XML

Goodwill and Other Intangibles and Servicing Rights - Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Goodwill:
Goodwill at beginning of year	$ 317,189	$ 163,151
Acquisitions	52,660	154,038
Goodwill at end of period	$ 369,849	$ 317,189

XML

Goodwill and Other Intangibles and Servicing Rights - Other intangible assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Net book value	$ 37,268		$ 37,268		$ 22,303
Amortization during the period	1,628	$ 758	4,399	$ 2,400
Core deposit intangibles:
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	60,724		60,724		41,360
Accumulated amortization	(25,933)		(25,933)		(21,915)
Net book value	34,791		34,791		19,445
Additions during the period			19,364		13,595
Amortization during the period			4,018		2,987
Customer list intangibles:
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	5,523		5,523		5,523
Accumulated amortization	(3,046)		(3,046)		(2,665)
Net book value	$ 2,477		2,477		2,858
Amortization during the period			$ 381		$ 507

XML

Goodwill and Other Intangibles and Servicing Rights - Mortgage servicing rights (Details) - Mortgage Servicing Rights - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Mortgage servicing rights asset:
MSR asset at beginning of year	$ 13,636	$ 10,230
Capitalized MSR	2,127	4,329
MSR asset acquired	0	1,322
Amortization during the period	(2,145)	(2,245)
MSR asset at end of period	13,618	13,636
Valuation Allowance:
Valuation allowance at beginning of year	(1,200)	(1,000)
Additions	0	(500)
Reversals	700	300
Valuation allowance at end of period	(500)	(1,200)
MSR asset, net	13,118	12,436
Fair value of MSR asset at end of period	16,740	15,599
Residential mortgage loans serviced for others	$ 1,649,187	$ 1,583,577
Net book value of MSR asset to loans serviced for others	0.80%	0.79%

XML

Goodwill and Other Intangibles and Servicing Rights - Narrative (Details) - LSR asset $ in Millions	Sep. 30, 2022 USD ($)
Finite-Lived Intangible Assets [Line Items]
Servicing asset	$ 13
Loans serviced for others	$ 553

XML

Goodwill and Other Intangibles and Servicing Rights - Estimated future amortization expense (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Net book value	$ 37,268	$ 22,303
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
2022 (remaining three months)	2,091
2023	7,589
2024	6,298
2025	5,161
2026	3,983
2027	3,218
Thereafter	6,451
Net book value	34,791	19,445
Customer list intangibles
Finite-Lived Intangible Assets [Line Items]
2022 (remaining three months)	126
2023	483
2024	449
2025	449
2026	249
2027	166
Thereafter	555
Net book value	2,477	$ 2,858
MSR asset
Finite-Lived Intangible Assets [Line Items]
2022 (remaining three months)	386
2023	2,735
2024	2,635
2025	1,884
2026	1,394
2027	1,394
Thereafter	3,190
Net book value	13,618
LSR asset
Finite-Lived Intangible Assets [Line Items]
2022 (remaining three months)	2,004
2023	6,345
2024	3,673
2025	1,020
2026	0
2027	0
Thereafter	0
Net book value	$ 13,042

XML

Short and Long-Term Borrowings - Narrative (Details)	1 Months Ended	24 Months Ended	48 Months Ended	60 Months Ended
	Dec. 31, 2021 USD ($) note	Dec. 31, 2028	Dec. 31, 2030	Jul. 15, 2031	Sep. 30, 2022 USD ($)	Jul. 31, 2021 USD ($)
Debt Instrument
Short-term borrowings	$ 0				$ 280,000,000
Trust preferred securities qualify as Tier 1 capital	$ 37,000,000				$ 38,000,000
FHLB advances
Debt Instrument
FHLB weighted average interest rate at period end	0.59%				1.09%
Subordinated notes
Debt Instrument
Number of notes assumed | note	2
Face amount issued					$ 152,400,000
Subordinated Notes due 2031 | Subordinated notes
Debt Instrument
Face amount issued					100,000,000	$ 100,000,000
Subordinated Notes due 2031 | Subordinated notes | Interest Rate For The Years One Through 5
Debt Instrument
Fixed interest rate						3.125%
Subordinated Notes due 2031 | Subordinated notes | SOFR | Forecast | Interest Rate After Year Five
Debt Instrument
Floating interest rate basis spread				2.375%
County Subordinated Notes due 2028 | Subordinated notes
Debt Instrument
Face amount issued	$ 30,000,000				30,000,000
County Subordinated Notes due 2028 | Subordinated notes | Interest Rate For The Years One Through 5
Debt Instrument
Fixed interest rate	5.875%
County Subordinated Notes due 2028 | Subordinated notes | London Interbank Offered Rate (LIBOR) | Forecast | Interest Rate After Year Five
Debt Instrument
Floating interest rate basis spread		2.88%
County Subordinated Notes due 2030 | Subordinated notes
Debt Instrument
Face amount issued	$ 22,000,000				22,400,000
County Subordinated Notes due 2030 | Subordinated notes | Interest Rate For The Years One Through 5
Debt Instrument
Fixed interest rate	7.00%
County Subordinated Notes due 2030 | Subordinated notes | SOFR | Forecast | Interest Rate After Year Five
Debt Instrument
Floating interest rate basis spread			6.875%
FHLB advances
Debt Instrument
Short-term borrowings					280,000,000
FHLB advances | Maturing October 2022
Debt Instrument
Short-term borrowings					$ 80,000,000
Weighted average interest rate on short-term debt					2.70%
FHLB advances | Maturing September 2023
Debt Instrument
Short-term borrowings					$ 200,000,000
Weighted average interest rate on short-term debt					4.30%

XML

Short and Long-Term Borrowings - Long-term Borrowings (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument
Long-term borrowings	$ 225,236	$ 216,915
FHLB advances
Debt Instrument
Long-term borrowings	33,000	25,000
Junior subordinated debentures
Debt Instrument
Long-term borrowings	39,512	38,885
Subordinated notes
Debt Instrument
Long-term borrowings	$ 152,724	$ 153,030

XML

Short and Long-Term Borrowings - Junior Subordinated Debentures (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021	Jul. 31, 2021
Debt Instrument [Line Items]
Carrying Value	$ 225,236,000	$ 216,915,000
Junior subordinated debentures
Debt Instrument [Line Items]
Par	48,045,000
Unamortized Premium /(Discount) / Debt Issue Costs	(8,533,000)
Carrying Value	$ 39,512,000	$ 38,885,000
Junior subordinated debentures | 2005 Mid-Wisconsin Financial Services, Inc.
Debt Instrument [Line Items]
Interest Rate	4.72%	1.63%
Par	$ 10,310,000
Unamortized Premium /(Discount) / Debt Issue Costs	(2,625,000)
Carrying Value	$ 7,685,000	$ 7,537,000
Junior subordinated debentures | 2006 Baylake Corp.
Debt Instrument [Line Items]
Interest Rate	5.02%	1.57%
Par	$ 16,598,000
Unamortized Premium /(Discount) / Debt Issue Costs	(3,233,000)
Carrying Value	$ 13,365,000	$ 13,187,000
Junior subordinated debentures | 2004 First Menasha Bancshares, Inc.
Debt Instrument [Line Items]
Interest Rate	6.32%	3.01%
Par	$ 5,155,000
Unamortized Premium /(Discount) / Debt Issue Costs	(498,000)
Carrying Value	$ 4,657,000	$ 4,624,000
Junior subordinated debentures | County Bancorp Statutory Trust II
Debt Instrument [Line Items]
Interest Rate	4.82%	1.73%
Par	$ 6,186,000
Unamortized Premium /(Discount) / Debt Issue Costs	(948,000)
Carrying Value	$ 5,238,000	$ 5,061,000
Junior subordinated debentures | County Bancorp Statutory Trust III
Debt Instrument [Line Items]
Interest Rate	4.98%	1.89%
Par	$ 6,186,000
Unamortized Premium /(Discount) / Debt Issue Costs	(1,006,000)
Carrying Value	$ 5,180,000	$ 5,121,000
Junior subordinated debentures | Fox River Valley Capital Trust
Debt Instrument [Line Items]
Interest Rate	6.40%	6.40%
Par	$ 3,610,000
Unamortized Premium /(Discount) / Debt Issue Costs	(223,000)
Carrying Value	$ 3,387,000	$ 3,355,000
Junior subordinated debentures | London Interbank Offered Rate (LIBOR) | 2005 Mid-Wisconsin Financial Services, Inc.
Debt Instrument [Line Items]
Floating interest rate basis spread	1.43%
Junior subordinated debentures | London Interbank Offered Rate (LIBOR) | 2006 Baylake Corp.
Debt Instrument [Line Items]
Floating interest rate basis spread	1.35%
Junior subordinated debentures | London Interbank Offered Rate (LIBOR) | 2004 First Menasha Bancshares, Inc.
Debt Instrument [Line Items]
Floating interest rate basis spread	2.79%
Junior subordinated debentures | London Interbank Offered Rate (LIBOR) | County Bancorp Statutory Trust II
Debt Instrument [Line Items]
Floating interest rate basis spread	1.53%
Junior subordinated debentures | London Interbank Offered Rate (LIBOR) | County Bancorp Statutory Trust III
Debt Instrument [Line Items]
Floating interest rate basis spread	1.69%
Junior subordinated debentures | London Interbank Offered Rate (LIBOR) | Fox River Valley Capital Trust
Debt Instrument [Line Items]
Floating interest rate basis spread	3.40%
Subordinated notes
Debt Instrument [Line Items]
Par	$ 152,400,000
Unamortized Premium /(Discount) / Debt Issue Costs	324,000
Carrying Value	$ 152,724,000	$ 153,030,000
Subordinated notes | Subordinated Notes due 2031
Debt Instrument [Line Items]
Interest Rate	3.13%	3.13%
Par	$ 100,000,000		$ 100,000,000
Unamortized Premium /(Discount) / Debt Issue Costs	(785,000)
Carrying Value	$ 99,215,000	$ 99,057,000
Subordinated notes | County Subordinated Notes due 2028
Debt Instrument [Line Items]
Interest Rate	5.88%	5.88%
Par	$ 30,000,000	$ 30,000,000
Unamortized Premium /(Discount) / Debt Issue Costs	189,000
Carrying Value	$ 30,189,000	$ 30,402,000
Subordinated notes | County Subordinated Notes due 2030
Debt Instrument [Line Items]
Interest Rate	7.00%	7.00%
Par	$ 22,400,000	$ 22,000,000
Unamortized Premium /(Discount) / Debt Issue Costs	920,000
Carrying Value	$ 23,320,000	$ 23,571,000

XML

Fair Value Measurements - Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	$ 949,597	$ 921,661
U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	184,763	191,277
State, county and municipals
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	411,864	312,737
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	213,435	271,262
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	139,535	146,385
Reccurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	949,597	921,661
Derivative assets	0	1,064
Derivative liabilities	0	1,064
Reccurring | U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	184,763	191,277
Reccurring | State, county and municipals
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	411,864	312,737
Reccurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	213,435	271,262
Reccurring | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	139,535	146,385
Reccurring | Other investments (equity securities)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments (equity securities)	4,482	5,660
Reccurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Derivative assets	0	0
Derivative liabilities	0	0
Reccurring | Level 1 | U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Reccurring | Level 1 | State, county and municipals
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Reccurring | Level 1 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Reccurring | Level 1 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Reccurring | Level 1 | Other investments (equity securities)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments (equity securities)	4,482	5,660
Reccurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	941,451	913,596
Derivative assets	0	1,064
Derivative liabilities	0	1,064
Reccurring | Level 2 | U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	184,763	191,277
Reccurring | Level 2 | State, county and municipals
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	410,021	310,316
Reccurring | Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	212,453	270,260
Reccurring | Level 2 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	134,214	141,743
Reccurring | Level 2 | Other investments (equity securities)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments (equity securities)	0	0
Reccurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	8,146	8,065
Derivative assets	0	0
Derivative liabilities	0	0
Reccurring | Level 3 | U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	0	0
Reccurring | Level 3 | State, county and municipals
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	1,843	2,421
Reccurring | Level 3 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	982	1,002
Reccurring | Level 3 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	5,321	4,642
Reccurring | Level 3 | Other investments (equity securities)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments (equity securities)	$ 0	$ 0

XML

Fair Value Measurements - Changes in Level 3 assets measured at fair value on a recurring basis (Details) - Securities AFS - Recurring - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Level 3 Fair Value Measurements:
Balance at beginning of year	$ 8,065	$ 3,130
Acquired balance	750	4,935
Unrealized gain / (loss)	(227)	0
Balance at end of period	8,146	8,065
Level 3
Level 3 Fair Value Measurements:
Maturities / Paydowns	$ (442)	$ 0

XML

Fair Value Measurements - Measured at Fair Value on Nonrecurring Basis (Details) - Measured at Fair Value on a Nonrecurring Basis - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	$ 30,217	$ 36,230
Other real estate owned (“OREO”)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	2,134	11,955
MSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	13,118	12,436
LSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	13,042	20,055
Level 1 | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 1 | Other real estate owned (“OREO”)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 1 | MSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 1 | LSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 2 | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 2 | Other real estate owned (“OREO”)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 2 | MSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 2 | LSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	0	0
Level 3 | Collateral dependent loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	30,217	36,230
Level 3 | Other real estate owned (“OREO”)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	2,134	11,955
Level 3 | MSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	13,118	12,436
Level 3 | LSR asset
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value disclosure	$ 13,042	$ 20,055

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Fair Value Measurements - Summary of carrying amounts and estimated fair values of financial instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financial assets:
Securities AFS	$ 949,597	$ 921,661
Securities HTM	627,639	648,394
Carrying Amount
Financial assets:
Cash and cash equivalents	438,282	595,292
Certificates of deposit in other banks	13,510	21,920
Securities AFS	949,597	921,661
Securities HTM	686,424	651,803
Other investments, including equity securities	79,279	44,008
Loans held for sale	3,709	6,447
Loans, net	5,924,089	4,572,164
Accrued interest receivable	21,542	15,277
Financial liabilities:
Deposits	7,395,902	6,465,916
Short-term borrowings	280,000
Long-term borrowings	225,236	216,915
Accrued interest payable	3,533	3,078
Carrying Amount | MSR asset
Financial assets:
Loan servicing rights	13,118	12,436
Carrying Amount | LSR asset
Financial assets:
Loan servicing rights	13,042	20,055
Estimated Fair Value
Financial assets:
Cash and cash equivalents	438,282	595,292
Certificates of deposit in other banks	13,409	22,236
Securities AFS	949,597	921,661
Securities HTM	627,639	648,394
Other investments, including equity securities	79,279	44,008
Loans held for sale	3,770	6,616
Loans, net	5,638,877	4,606,851
Accrued interest receivable	21,542	15,277
Financial liabilities:
Deposits	7,390,443	6,463,064
Short-term borrowings	280,000
Long-term borrowings	220,616	216,092
Accrued interest payable	3,533	3,078
Estimated Fair Value | MSR asset
Financial assets:
Loan servicing rights	16,740	15,599
Estimated Fair Value | LSR asset
Financial assets:
Loan servicing rights	13,042	20,055
Estimated Fair Value | Level 1
Financial assets:
Cash and cash equivalents	438,282	595,292
Certificates of deposit in other banks	0	0
Securities AFS	0	0
Securities HTM	0	0
Other investments, including equity securities	4,482	5,660
Loans held for sale	0	0
Loans, net	0	0
Accrued interest receivable	21,542	15,277
Financial liabilities:
Deposits	0	0
Short-term borrowings	0
Long-term borrowings	0	0
Accrued interest payable	3,533	3,078
Estimated Fair Value | Level 1 | MSR asset
Financial assets:
Loan servicing rights	0	0
Estimated Fair Value | Level 1 | LSR asset
Financial assets:
Loan servicing rights	0	0
Estimated Fair Value | Level 2
Financial assets:
Cash and cash equivalents	0	0
Certificates of deposit in other banks	13,409	22,236
Securities AFS	941,451	913,596
Securities HTM	627,639	648,394
Other investments, including equity securities	58,910	32,110
Loans held for sale	3,770	6,616
Loans, net	0	0
Accrued interest receivable	0	0
Financial liabilities:
Deposits	0	0
Short-term borrowings	280,000
Long-term borrowings	33,104	25,097
Accrued interest payable	0	0
Estimated Fair Value | Level 2 | MSR asset
Financial assets:
Loan servicing rights	0	0
Estimated Fair Value | Level 2 | LSR asset
Financial assets:
Loan servicing rights	0	0
Estimated Fair Value | Level 3
Financial assets:
Cash and cash equivalents	0	0
Certificates of deposit in other banks	0	0
Securities AFS	8,146	8,065
Securities HTM	0	0
Other investments, including equity securities	15,887	6,238
Loans held for sale	0	0
Loans, net	5,638,877	4,606,851
Accrued interest receivable	0	0
Financial liabilities:
Deposits	7,390,443	6,463,064
Short-term borrowings	0
Long-term borrowings	187,512	190,995
Accrued interest payable	0	0
Estimated Fair Value | Level 3 | MSR asset
Financial assets:
Loan servicing rights	16,740	15,599
Estimated Fair Value | Level 3 | LSR asset
Financial assets:
Loan servicing rights	$ 13,042	$ 20,055

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Other Assets and Other Liabilities Held for Sale (Details) - Held-for-sale - Birmingham Sale $ in Millions	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loans	$ 199
Deposits	$ 51