MidWestOne Financial (MOFG) 10-Q 6 Aug 20 2020 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Aug. 05, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-35968
Entity Registrant Name	MIDWESTONE FINANCIAL GROUP, INC.
Entity Incorporation, State or Country Code	IA
Entity Tax Identification Number	42-1206172
Entity Address, Address Line One	102 South Clinton Street
Entity Address, City or Town	Iowa City
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	52240
City Area Code	319
Local Phone Number	356-5800
Title of 12(b) Security	Common stock, $1.00 par value
Trading Symbol	MOFG
Security Exchange Name	NASDAQ
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		16,099,324
Entity Central Index Key	0001412665
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 65,863	$ 67,174
Interest earning deposits in banks	45,018	6,112
Federal funds sold	6,329	198
Total cash and cash equivalents	117,210	73,484
Debt securities available for sale at fair value	1,187,455	785,977
Loans held for sale	12,048	5,400
Gross loans held for investment	3,618,675	3,469,236
Unearned income, net	(21,636)	(17,970)
Loans held for investment, net of unearned income	3,597,039	3,451,266
Allowance for credit losses	(55,644)	(29,079)
Total loans held for investment, net	3,541,395	3,422,187
Premises and equipment, net	88,929	90,723
Goodwill	93,977	91,918
Other intangible assets, net	28,443	32,218
Foreclosed assets, net	965	3,706
Other assets	160,541	147,960
Total assets	5,230,963	4,653,573
LIABILITIES AND SHAREHOLDERS' EQUITY
Noninterest bearing deposits	867,637	662,209
Interest bearing deposits	3,397,798	3,066,446
Total deposits	4,265,435	3,728,655
Short-term borrowings	162,224	139,349
Long-term debt	189,973	231,660
Other liabilities	92,550	44,927
Total liabilities	4,710,182	4,144,591
Shareholders' equity
Preferred stock, no par value; authorized 500,000 shares; no shares issued and outstanding	0	0
Common stock, $1.00 par value; authorized 30,000,000 shares; issued shares of 16,581,017 and 16,581,017; outstanding shares of 16,099,324 and 16,162,176	16,581	16,581
Additional paid-in capital	299,542	297,390
Retained earnings	198,382	201,105
Treasury stock at cost, 481,693 and 418,841 shares	(12,272)	(10,466)
Accumulated other comprehensive income	18,548	4,372
Total shareholders' equity	520,781	508,982
Total liabilities and shareholders' equity	$ 5,230,963	$ 4,653,573

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, shares issued (in shares)	16,581,017	16,581,017
Common stock, shares outstanding (in shares)	16,099,324	16,162,176
Treasury stock (in shares)	481,693	418,841

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest income
Loans, including fees	$ 40,214	$ 40,053	$ 82,226	$ 69,088
Taxable investment securities	4,646	3,289	8,363	6,216
Tax-exempt investment securities	1,858	1,424	3,370	2,830
Other	40	185	204	205
Total interest income	46,758	44,951	94,163	78,339
Interest expense
Deposits	6,409	7,743	14,358	13,438
Short-term borrowings	263	500	597	957
Long-term debt	1,374	1,876	3,090	3,136
Total interest expense	8,046	10,119	18,045	17,531
Net interest income	38,712	34,832	76,118	60,808
Credit loss expense	4,685	696	26,418	2,290
Net interest income after credit loss expense	34,027	34,136	49,700	58,518
Noninterest income
Investment services and trust activities	2,217	1,890	4,753	3,280
Service charges and fees	1,290	1,870	3,116	3,312
Card revenue	1,237	1,799	2,602	2,797
Loan revenue	1,910	648	3,033	1,041
Bank-owned life insurance	635	470	1,155	862
Insurance commissions	0	314	0	734
Investment securities gains, net	6	32	48	49
Other	974	1,773	3,717	2,131
Total noninterest income	8,269	8,796	18,424	14,206
Noninterest expense
Compensation and employee benefits	15,682	16,409	32,299	28,988
Occupancy expense of premises, net	2,253	2,127	4,594	4,006
Equipment	2,010	1,914	3,890	3,285
Legal and professional	1,382	3,291	2,917	4,256
Data processing	1,240	1,008	2,594	1,853
Marketing	910	869	1,972	1,475
Amortization of intangibles	1,748	930	3,776	1,382
FDIC insurance	445	434	893	804
Communications	449	377	906	719
Foreclosed assets, net	34	84	172	142
Other	1,885	1,597	4,026	2,747
Total noninterest expense	28,038	29,040	58,039	49,657
Income before income tax expense	14,258	13,892	10,085	23,067
Income tax expense	2,546	3,218	348	5,108
Net income	$ 11,712	$ 10,674	$ 9,737	$ 17,959
Earnings Per Share [Abstract]
Earnings - basic (in dollars per share)	$ 0.73	$ 0.72	$ 0.60	$ 1.33
Earnings - diluted (in dollars per share)	0.73	0.72	0.60	1.33
Dividends paid (in dollars per share)	$ 0.2200	$ 0.2025	$ 0.4400	$ 0.4050

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 11,712	$ 10,674	$ 9,737	$ 17,959
Unrealized gain from debt securities available for sale:
Unrealized net holding gains on debt securities available for sale arising during the period	15,866	5,777	20,191	9,905
Reclassification adjustment for gains included in net income	(6)	(32)	(48)	(49)
Income tax expense	(4,139)	(1,499)	(5,257)	(2,572)
Unrealized net gains on debt securities available for sale, net of reclassification adjustment	11,721	4,246	14,886	7,284
Unrealized loss from cash flow hedging instruments:
Unrealized net holding loss in cash flow hedging instruments arising during the period	(129)	0	(1,017)	0
Reclassification adjustment for net losses in cash flow hedging instruments included in income	62	0	57	0
Income tax benefit	17	0	250	0
Unrealized net losses on cash flow hedge instruments, net of reclassification adjustment	(50)	0	(710)	0
Other comprehensive income, net of tax	11,671	4,246	14,176	7,284
Comprehensive income	$ 23,383	$ 14,920	$ 23,913	$ 25,243

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands		Total	Cumulative effect adjustment	[1]	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained EarningsCumulative effect adjustment	[1]	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2018		$ 357,067			$ 12,463	$ 187,813	$ 168,951			$ (6,499)	$ (5,661)
Net income		7,285					7,285
Other comprehensive income, net of tax		3,038									3,038
Release/lapse of restriction on RSUs		(69)				(570)				501
Repurchase of common stock		(1,299)								(1,299)
Share-based compensation		292				292
Dividends paid on common stock		(2,465)					(2,465)
Ending balance at Mar. 31, 2019		363,849			12,463	187,535	173,771			(7,297)	(2,623)
Beginning balance at Dec. 31, 2018		357,067			12,463	187,813	168,951			(6,499)	(5,661)
Net income		17,959
Other comprehensive income, net of tax		7,284
Ending balance at Jun. 30, 2019		488,351			16,581	296,879	181,984			(8,716)	1,623
Beginning balance at Mar. 31, 2019		363,849			12,463	187,535	173,771			(7,297)	(2,623)
Issuance of common stock due to business combination		113,346			4,118	109,228
Net income		10,674					10,674
Other comprehensive income, net of tax		4,246									4,246
Release/lapse of restriction on RSUs		(19)				(196)				177
Repurchase of common stock		(1,596)								(1,596)
Share-based compensation		312				312
Dividends paid on common stock		(2,461)					(2,461)
Ending balance at Jun. 30, 2019		488,351			16,581	296,879	181,984			(8,716)	1,623
Beginning balance at Dec. 31, 2019		508,982	$ (5,362)		16,581	297,390	201,105	$ (5,362)		(10,466)	4,372
Net income		(1,975)					(1,975)
Other comprehensive income, net of tax		2,505									2,505
Acquisition fair value finalization	[2]	2,355				2,355
Release/lapse of restriction on RSUs		(127)				(679)				552
Repurchase of common stock		(2,604)								(2,604)
Share-based compensation		346				346
Dividends paid on common stock		(3,556)					(3,556)
Ending balance at Mar. 31, 2020		500,564			16,581	299,412	190,212			(12,518)	6,877
Beginning balance at Dec. 31, 2019		508,982	$ (5,362)		16,581	297,390	201,105	$ (5,362)		(10,466)	4,372
Net income		9,737
Other comprehensive income, net of tax		14,176
Ending balance at Jun. 30, 2020		520,781			16,581	299,542	198,382			(12,272)	18,548
Beginning balance at Mar. 31, 2020		500,564			16,581	299,412	190,212			(12,518)	6,877
Net income		11,712					11,712
Other comprehensive income, net of tax		11,671									11,671
Release/lapse of restriction on RSUs		(12)				(258)				246
Share-based compensation		388				388
Dividends paid on common stock		(3,542)					(3,542)
Ending balance at Jun. 30, 2020		$ 520,781			$ 16,581	$ 299,542	$ 198,382			$ (12,272)	$ 18,548
[1]	Reclassification pursuant to adoption of ASU 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. See Note 2. Effect of New Financial Accounting Standards for additional information.
[2]	Relates to the finalization of the purchase accounting adjustments for the ATBancorp acquisition. This purchase accounting adjustment had a $2.06 million impact on goodwill, $296 thousand impact on deferred income taxes, with the offsetting impact being to additional paid-in capital. See Note 6 . Goodwill and Intangible Assets for additional information.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 11,712	$ 10,674	$ 9,737	$ 17,959
Adjustments to reconcile net income to net cash provided by operating activities:
Credit loss expense	4,685	696	26,418	2,290
Depreciation, amortization, and accretion			2,342	4,473
Net loss on sale of premises and equipment			61	40
Share-based compensation			734	604
Net gain on sale or call of debt securities available for sale			(48)	(49)
Net (gain) loss on sale of foreclosed assets, net			(45)	1
Writedown of foreclosed assets			164	0
Net gain on sale of loans held for sale			(2,696)	(821)
Origination of loans held for sale			179,415	50,900
Proceeds from sales of loans held for sale			175,463	49,429
Increase in cash surrender value of bank-owned life insurance			(786)	(862)
Increase in deferred income taxes, net			(6,680)	(76)
Change in:
Other assets			(9,761)	1,028
Other liabilities			13,226	(4,866)
Net cash provided by operating activities			28,714	18,250
Cash flows from investing activities:
Proceeds from sales of debt securities available for sale			22,146	125,414
Proceeds from maturities and calls of debt securities available for sale			78,311	49,699
Purchases of debt securities available for sale			(452,716)	(112,256)
Proceeds from maturities and calls of debt securities held to maturity			0	3,117
Net increase in loans, net of unearned income			(142,475)	(5,482)
Purchases of premises and equipment			(803)	(1,242)
Proceeds from sale of foreclosed assets			2,637	763
Proceeds from sale of premises and equipment			2	0
Net cash acquired in business acquisition			0	37,054
Proceeds from sale of intangible assets			0	99
Net cash (used in) provided by investing activities			(492,898)	97,166
Cash flows from financing activities:
Deposits			536,589	33,449
Short-term borrowings			22,875	(38,354)
Long-term debt			(41,713)	(27,250)
Taxes paid relating to the release/lapse of restriction on RSUs			(139)	(88)
Dividends paid			(7,098)	(4,926)
Payment of stock issuance costs			0	(323)
Repurchase of common stock			(2,604)	(2,895)
Net cash provided by (used in) financing activities			507,910	(40,387)
Net increase in cash and cash equivalents			43,726	75,029
Cash and cash equivalents:
Beginning of Period			73,484	45,480
Ending balance	117,210	120,509	117,210	120,509
Supplemental disclosures of cash flow information:
Cash paid during the period for interest			18,039	15,493
Cash paid during the period for income taxes			3,505	1,405
Supplemental schedule of non-cash investing and financing activities:
Transfer of loans to foreclosed assets, net			15	1,384
Investment securities purchased but not settled			30,192	0
Initial recognition of operating lease right of use asset	4,067		4,067
Initial recognition of operation lease liability	5,036		5,036
Noncash assets acquired:
Goodwill	93,977		93,977
ATBancorp
Noncash assets acquired:
Debt securities available for sale	0	99,056	0	99,056
Loans	0	1,137,880	0	1,137,880
Premises and equipment	0	19,213	0	19,213
Goodwill	0	28,722	0	28,722
Bank-owned life insurance	0	18,759	0	18,759
Foreclosed assets	0	3,767	0	3,767
Other assets	0	17,657	0	17,657
Total noncash assets acquired			0	1,353,284
Liabilities assumed:
Deposits	0	1,079,094	0	1,079,094
Short-term borrowings	0	60,761	0	60,761
FHLB borrowings	0	82,771	0	82,771
Junior subordinated notes issued to capital trusts	0	17,557	0	17,557
Subordinated debentures	0	10,873	0	10,873
Other liabilities	0	25,613	0	25,613
Total liabilities assumed			0	1,276,669
ATBancorp | Core deposit intangible
Noncash assets acquired:
Core deposit intangible	$ 0	$ 28,230	$ 0	$ 28,230

Consolidated Statements of Sh_2

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020
Release/lapse of restriction on RSUs (in shares)	9,542	22,946	8,260	24,550
Repurchase of common stock (in shares)		95,340	56,985	49,216
Dividends paid on common stock (in dollars per share)	$ 0.2200	$ 0.22	$ 0.2025	$ 0.2025	$ 0.4400
Accounting standards update					us-gaap:AccountingStandardsUpdate201613Member
Additional Paid-in Capital
Expenses incurred in stock issuance			$ 323
Common Stock
Issuance of common stock due to business combination (in shares)			4,117,536
ATBancorp
Deferred income taxes					$ 296
Goodwill adjustments					$ 2,060

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Business MidWest One Financial Group, Inc., an Iowa corporation formed in 1983, is a bank holding company under the BHCA and a financial holding company under the GLBA. Our principal executive offices are located at 102 South Clinton Street, Iowa City, Iowa 52240. The Company owns all of the outstanding common stock of MidWest One Bank, an Iowa state non-member bank chartered in 1934 with its main office in Iowa City, Iowa, and, until its dissolution in December 2019, all of the common stock of MidWest One Insurance Services, Inc., Oskaloosa, Iowa. We operate primarily through MidWest One Bank, our bank subsidiary. On May 1, 2019, the Company acquired ATBancorp, a bank holding company whose wholly-owned banking subsidiaries were ATSB and ABTW, community banks headquartered in Dubuque, Iowa, and Cuba City, Wisconsin, respectively. As consideration for the merger, we issued 4,117,536 shares of our common stock with a value of $116 million, and paid cash in the amount of $34.8 million. On June 30, 2019, the Company sold substantially all of the assets used by its wholly owned subsidiary, MidWest One Insurance Services, Inc. to sell insurance products. The Company recognized a pre-tax gain of $1.1 million from the sale, which was reported in “Other” noninterest income on the Company’s consolidated statements of income. Basis of Presentation The accompanying interim condensed consolidated financial statements are prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2019, filed with the SEC on March 6, 2020. Risks and Uncertainties The outbreak of COVID-19 has adversely impacted a broad range of industries in which the Company’s customers operate and could impair their ability to fulfill their financial obligations to the Company. The World Health Organization declared COVID-19 to be a global pandemic, indicating that almost all public commerce and related business activities must be, to varying degrees, curtailed with the goal of decreasing the rate of new infections. The spread of the outbreak has caused significant disruptions in the U.S. economy and has disrupted banking and other financial activity in the areas in which the Company operates. While there has been no material impact to the Company’s employees to date, COVID-19 could also potentially create widespread business continuity issues for the Company. Congress, the President, and the FRB have taken several actions designed to cushion the economic fallout. Most notably, the CARES Act was signed into law at the end of March 2020 as a $2 trillion legislative package. The goal of the CARES Act was to prevent a severe economic downturn through various measures, including direct financial aid to American families and economic stimulus to significantly impacted industry sectors. The package also includes extensive emergency funding for hospitals and healthcare providers. In addition to the general impact of COVID-19, certain provisions of the CARES Act as well as other recent legislative and regulatory relief efforts are expected to have a material impact on the Company’s operations. The Company’s business is dependent upon the willingness and ability of its employees and customers to conduct banking and other financial transactions. If the global response to contain COVID-19 escalates further or is unsuccessful, the Company could experience a material adverse effect on its business, financial condition, results of operations and cash flows. While it is not possible to know the full universe or extent that the impact of COVID-19, and resulting measures to curtail its spread, will have on the Company’s operations, the Company discloses in this report potentially material items of which it is aware at the time this report is filed with the SEC. Financial position and results of operations The Company’s interest income could be reduced due to COVID-19. In accordance with CARES Act provisions and regulatory guidance, the Company is actively working with COVID-19 affected borrowers to defer their payments, interest, and fees. While interest and fees will still accrue to income, through normal GAAP accounting, should eventual credit losses on these deferred payments emerge, interest income and fees accrued would need to be reversed. In such a scenario, interest income in future periods could be negatively impacted. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 may affect its borrowers’ ability to repay in future periods. The Company’s fee income could be reduced due to COVID-19. In keeping with guidance from regulators, the Company is actively working with COVID-19 affected customers to waive fees from a variety of sources, such as, but not limited to, insufficient funds and overdraft fees, ATM fees, account maintenance fees, etc. These reductions in fees are thought, at this time, to be temporary in conjunction with the length of the expected COVID-19 related economic crisis. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 is likely to impact its fee income in future periods. Capital and liquidity While the Company believes that it has sufficient capital to withstand an extended economic recession brought about by COVID-19, its reported and regulatory capital ratios could be adversely impacted by further credit losses. On July 28, 2020, the Company completed the private placement of $65.0 million of its subordinated notes with registration rights. The 5.75% fixed-to-floating rate subordinated notes are due July 2030. For regulatory capital purposes, the subordinated notes have been structured to qualify initially as Tier 2 Capital for the Company. The Company relies on cash on hand as well as dividends from its subsidiary bank to service its debt. If the Company’s capital deteriorates such that its subsidiary bank is unable to pay dividends to it for an extended period of time, the Company may not be able to service its debt. If an extended recession causes large numbers of the Company’s deposit customers to withdraw their funds, the Company might become more reliant on volatile or more expensive sources of funding. Asset valuation Currently, the Company does not expect COVID-19 to affect its ability to account timely for the assets on its balance sheet; however, this could change in future periods. While certain valuation assumptions and judgments will change to account for pandemic-related circumstances such as widening credit spreads, the Company does not anticipate significant changes in methodology used to determine the fair value of assets measured in accordance with GAAP. Due to the economic impact that COVID-19 has had on the Company, management concluded that factors, such as the decline in macroeconomic conditions and a sustained decrease in share price, have led to the occurrence of a triggering event and therefore an interim impairment test over goodwill was performed as of June 30, 2020. As part of this interim impairment assessment, in the event that the Company concluded that all or a portion of its goodwill is impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Based upon the results of our interim goodwill assessment, we have concluded that an impairment did not exist as of the time of the assessment. It is possible that the lingering effects of COVID-19 could cause the occurrence of what management would deem to be subsequent triggering events that could, under certain circumstances, cause us to perform a goodwill or intangible asset impairment test and result in an impairment charge being recorded for that period. In the event that the Company concludes that all or a portion of its goodwill or intangible assets are impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Processes, controls and business continuity plan The Company has invoked its Business Continuity Plan that includes a remote working strategy. The Company does not anticipate incurring additional material costs related to its continued deployment of the remote working strategy. No material operational or internal control challenges or risks have been identified to date. The Company does not anticipate significant challenges to its ability to maintain its systems and controls in light of the measures the Company has taken to prevent the spread of COVID-19. The Company does not currently face any material resource constraint through the implementation of its business continuity plans. Credit The Company is working with customers directly affected by COVID-19. The Company is prepared to offer short-term assistance in accordance with regulatory guidelines. As a result of the current economic environment caused by the COVID-19 virus, the Company is engaging in more frequent communication with borrowers to better understand their situation and the challenges faced, allowing it to respond proactively as needs and issues arise. Should economic conditions worsen, the Company could experience further increases in its required ACL and record additional credit loss expense. It is possible that the Company’s asset quality measures could worsen at future measurement periods if the effects of COVID-19 are prolonged. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amounts of assets and liabilities, (2) the disclosure of contingent assets and liabilities at the date of the financial statements, and (3) the reported amounts of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. The results for the six months ended June 30, 2020 may not be indicative of results for the year ending December 31, 2020, or for any other period. All significant accounting policies followed in the preparation of the quarterly financial statements are disclosed in the Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on March 6, 2020. Segment Reporting The Company’s activities are considered to be one reportable segment. The Company is engaged in the business of commercial and retail banking, and investment management with operations throughout Iowa, the Minneapolis/St. Paul metropolitan area of Minnesota, western Wisconsin, Naples and Fort Myers, Florida, and Denver, Colorado. Substantially all income is derived from a diverse base of commercial, mortgage and retail lending activities, and investments. Allowance for Credit Losses Debt Securities Available for Sale For available for sale debt securities in an unrealized loss position, the Company evaluates the securities to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses related to debt securities AFS on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the ACL and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount must be recognized in earnings with a corresponding adjustment to the security’s amortized cost basis. Because the security’s amortized cost basis is adjusted to fair value, there is no ACL in this situation. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers’ financial condition, among other factors. Changes in the allowance for credit losses are recorded as credit loss expense (or reversal of credit loss expense). Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Accrued interest receivable is excluded from the estimate of credit losses. Loans Held for Investment Under the current expected credit loss model, the allowance for credit losses is a valuation account estimated at each balance sheet date and deducted from the amortized cost basis of loans held for investment to present the net amount expected to be collected. The Company estimates the ACL based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for collection of cash and charge-offs, as well as applicable accretion or amortization of premium, discount, and net deferred fees or costs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL. Expected credit losses are reflected in the allowance for credit losses through a charge to credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible, the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible; however, generally speaking, an asset will be considered uncollectible no later than when all efforts at collection have been exhausted. Subsequent recoveries, if any, are credited to the ACL when received. The Company measures expected credit losses of financial assets on a collective (pool) basis when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a DCF method or a loss-rate method to estimate expected credit losses. The Company’s methodologies for estimating the ACL consider available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company’s methodologies revert back to historical loss driver information on a straight-line basis over four quarters when it can no longer develop reasonable and supportable forecasts. The Company adjusted the reversion period from the previously disclosed six quarters to four quarters based upon current forecasted conditions. Discounted Cash Flow Method The Company uses the DCF method to estimate expected credit losses for the agricultural, commercial and industrial, CRE - construction and development, CRE - farmland, CRE - multifamily, CRE - other, RRE - owner-occupied one-to-four family first liens, RRE - nonowner-occupied one-to-four family first liens, RRE - one-to-four family junior liens, and consumer loan pools. For each of these pools, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical internal data. The Company uses regression analysis of historical internal and peer data to determine which variables are best suited to be economic variables utilized when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the economic variables. For the loan pools utilizing the DCF method, management utilizes one or multiple of the following economic variables: Midwest unemployment, national retail sales, CRE index, US rental vacancy rate, US gross domestic product, and national home price index (HPI). For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the difference between the instrument’s NPV and amortized cost basis. In addition, management utilizes qualitative factors to adjust the calculated ACL as appropriate. Qualitative factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Loss-Rate Method The Company uses a loss-rate method to estimate expected credit losses for the credit card and overdraft pools. For each of these pools, the Company applies an expected loss ratio based on internal and peer historical losses, adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Collateral Dependent Financial Assets Loans that do not share risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized costs basis of the financial asset exceeds the fair value of the underlying collateral less estimated cost to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. The Company’s estimate of the ACL reflects losses expected over the remaining contractual life of the assets. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR. A loan that has been modified or renewed is considered a TDR when two conditions are met: 1) the borrower is experiencing financial difficulty and 2) concessions are made for the borrower's benefit that would not otherwise be considered for a borrower or transaction with similar credit risk characteristics. The Company’s ACL reflects all effects of a TDR when an individual asset is specifically identified as a reasonably expected TDR. The Company has determined that a TDR is reasonably expected no later than the point when the lender concludes that modification is the best course of action and it is at least reasonably possible that the troubled borrower will accept some form of concession from the lender to avoid a default. Reasonably expected TDRs and executed non-performing TDRs are evaluated individually to determine the required ACL. TDRs performing in accordance with their modified contractual terms for a reasonable period of time may be included in the Company’s existing pools based on the underlying risk characteristics of the loan to measure the ACL. Guidance on Non-TDR Loan Modifications due to COVID-19 Section 4013 of the CARES Act, “Temporary Relief From Troubled Debt Restructurings,” allows financial institutions the option to temporarily suspend certain requirements under U.S. GAAP related to TDRs for a limited period of time during the COVID-19 pandemic. In March 2020, various regulatory agencies, including the FRB and the FDIC, issued an interagency statement, effective immediately, on loan modifications and reporting for financial institutions working with customers affected by COVID-19. The agencies confirmed with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not to be considered TDRs. This includes short-term (e.g., six months) modifications, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. Liability for Off-Balance Sheet Credit Losses Financial instruments include off-balance sheet credit losses, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded.

Effect of New Financial Account

Effect of New Financial Accounting Standards	6 Months Ended
	Jun. 30, 2020
Accounting Standards Update and Change in Accounting Principle [Abstract]
Effect of New Financial Accounting Standards	Effect of New Financial Accounting Standards Accounting Guidance Adopted in 2019 On January 1, 2020, the Company adopted ASU 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which replaces the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables. It is also applied to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments) and net investments in leases recognized by a lessor in accordance with Topic 842 on leases. In addition, ASC 326 made changes to the accounting for AFS debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on AFS debt securities that management does not intend to sell or believes that it is more likely than not they will be required to sell. The Company adopted ASC 326 using the modified retrospective method for all financial assets measured at amortized cost and off-balance-sheet credit exposures. Results for reporting periods beginning after January 1, 2020 are presented under ASC 326, while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company recorded a net decrease to retained earnings of $5.4 million as of January 1, 2020 for the cumulative effect of adopting ASC 326. The transition adjustment includes a $4.0 million impact due to the increase in ACL related to loans, a $3.4 million impact due the establishment of the allowance for unfunded commitments, and a $1.9 million impact on deferred taxes. The Company adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration that were previously classified as PCI and accounted for under ASC 310-30. In accordance with the standard, management did not reassess whether PCI assets met the criteria of PCD assets as of the date of adoption. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $119 thousand to the ACL. The remaining noncredit discount will be accreted into interest income at the effective interest rate as of January 1, 2020. The following table illustrates the impact of ASC 326 on the allowance for credit losses on loans and the liability for off-balance sheet credit exposures: January 1, 2020 Pre-ASC 326 Adoption Impact of ASC 326 Adoption As Reported Under ASC 326 (in thousands) Assets: Loans Agricultural $ 3,748 $ (2,557) $ 1,191 Commercial and industrial 8,394 2,728 11,122 Commercial real estate 13,804 1,300 15,104 Residential real estate 2,685 2,050 4,735 Consumer 448 463 911 Allowance for credit losses on loans $ 29,079 $ 3,984 $ 33,063 Liabilities: Liability for off-balance sheet credit exposures $ — $ 3,433 $ 3,433 In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in this update modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, including the consideration of costs and benefits. Four disclosure requirements were removed, three were modified, and two were added. In addition, the amendments eliminate “ at a minimum” from the phrase “ an entity shall disclose at a minimum” to promote the appropriate exercise of discretion by entities when considering fair value measurement disclosures and to clarify that materiality is an appropriate consideration of entities and their auditors when evaluating disclosure requirements. The amendments in this update are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. Accounting Guidance Pending Adoption at June 30, 2020 On March 12, 2020, the FASB issued ASU 2020-04, Reference Rate Reform (ASC 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

Debt Securities

Debt Securities	6 Months Ended
	Jun. 30, 2020
Debt Securities [Abstract]
Debt Securities	Debt Securities The amortized cost and fair value of investment debt securities AFS, with gross unrealized gains and losses, were as follows: As of June 30, 2020 (in thousands) Amortized Gross Gross Allowance for Credit Loss related to Debt Securities Estimated Fair Value U.S. Government agencies and corporations $ 402 $ 8 $ — $ — $ 410 State and political subdivisions 424,935 10,317 1,206 — 434,046 Mortgage-backed securities 77,944 1,742 1 — 79,685 Collateralized mortgage obligations 352,318 8,148 438 — 360,028 Corporate debt securities 305,797 8,387 898 — 313,286 Total debt securities $ 1,161,396 $ 28,602 $ 2,543 $ — $ 1,187,455 As of December 31, 2019 (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value U.S. Government agencies and corporations $ 439 $ 2 $ — $ 441 State and political subdivisions 253,750 3,803 348 257,205 Mortgage-backed securities 43,009 536 15 43,530 Collateralized mortgage obligations 293,911 1,000 1,965 292,946 Corporate debt securities 188,952 3,018 115 191,855 Total debt securities $ 780,061 $ 8,359 $ 2,443 $ 785,977 Investment securities with a carrying value of $377.8 million and $264.8 million at June 30, 2020 and December 31, 2019, respectively, were pledged on public deposits, securities sold under agreements to repurchase and for other purposes, as required or permitted by law. The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded at June 30, 2020, aggregated by investment category and length of time in a continuous loss position: As of June 30, 2020 Number of Securities Less than 12 Months 12 Months or More Total Available for Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 63 $ 41,403 $ 1,206 $ — $ — $ 41,403 $ 1,206 Mortgage-backed securities 5 286 1 16 — 302 1 Collateralized mortgage obligations 3 31,044 438 — — 31,044 438 Corporate debt securities 20 42,034 796 4,820 102 46,854 898 Total 91 $ 114,767 $ 2,441 $ 4,836 $ 102 $ 119,603 $ 2,543 As of June 30, 2020, 63 state and political subdivisions securities with total unrealized losses of $1.2 million were held by the Company. Management evaluated these securities by considering the yield spread to treasury securities, credit agency ratings, and payment history. In addition, management evaluated the most recent financial information available for certain of these securities. Based on this evaluation, management concluded that the decline in fair value was not attributable to credit losses. As of June 30, 2020, 5 mortgage-backed securities and 3 collateralized mortgage obligations with unrealized losses were held by the Company. Management evaluated the payment history of these securities. In addition, management considered the implied U.S. government guarantee of these agency securities and the level of credit enhancement for non-agency securities. Based on this evaluation, management concluded that the decline in fair value was not attributable to credit losses. As of June 30, 2020, 20 corporate debt securities with total unrealized losses of $0.9 million were held by the Company. Management evaluated these securities by considering credit agency ratings and payment history. In addition, management evaluated the most recent financial information available for certain of these securities. Based on this evaluation, management concluded that the decline in fair value was not attributable to credit losses. Accrued interest receivable on available for sale debt securities, which is recorded within 'Other Assets,' totaled $5.6 million at June 30, 2020 and is excluded from the estimate of credit losses. The following table presents information pertaining to debt securities with gross unrealized losses as of December 31, 2019, aggregated by investment category and length of time that individual securities have been in a continuous loss position: As of December 31, 2019 Available for Sale Number of Securities Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 47 $ 27,161 $ 322 $ 2,112 $ 26 $ 29,273 $ 348 Mortgage-backed securities 7 963 12 1,365 3 2,328 15 Collateralized mortgage obligations 33 103,395 719 65,604 1,246 168,999 1,965 Corporate debt securities 7 7,012 14 8,788 101 15,800 115 Total 94 $ 138,531 $ 1,067 $ 77,869 $ 1,376 $ 216,400 $ 2,443 Proceeds and gross realized gains and losses on debt securities available for sale for the three months and six months ended June 30, 2020 and 2019 were as follows: Three Months Ended Six Months Ended (in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Proceeds from sales of debt securities available for sale $ — $ 118,134 $ 22,140 $ 125,414 Gross realized gains from sales of debt securities available for sale — 79 155 105 Gross realized losses from sales of debt securities available for sale — (45) (113) (54) Net realized gain from sales of debt securities available for sale $ — $ 34 $ 42 $ 51 The contractual maturity distribution of investment debt securities at June 30, 2020, is shown below. Expected maturities of MBS and CMO may differ from contractual maturities because the mortgages underlying the securities may be called or prepaid without any penalties. Therefore, these securities are not included in the maturity categories in the following summary. Available For Sale (in thousands) Amortized Cost Fair Value Due in one year or less $ 56,816 $ 57,396 Due after one year through five years 250,000 257,274 Due after five years through ten years 206,548 211,367 Due after ten years 217,770 221,705 $ 731,134 $ 747,742 Mortgage-backed securities 77,944 79,685 Collateralized mortgage obligations 352,318 360,028 Total $ 1,161,396 $ 1,187,455

Loans Receivable and the Allowa

Loans Receivable and the Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Loans Receivable and the Allowance for Credit Losses	Loans Receivable and the Allowance for Credit Losses The composition of loans by class of receivable was as follows: As of (in thousands) June 30, 2020 December 31, 2019 Agricultural $ 140,837 $ 140,446 Commercial and industrial 1,084,527 835,236 Commercial real estate: Construction & development 199,950 298,077 Farmland 161,897 181,885 Multifamily 247,403 227,407 Commercial real estate-other 1,155,489 1,107,490 Total commercial real estate 1,764,739 1,814,859 Residential real estate: One- to four- family first liens 377,100 407,418 One- to four- family junior liens 155,814 170,381 Total residential real estate 532,914 577,799 Consumer 74,022 82,926 Loans held for investment, net of unearned income 3,597,039 3,451,266 Allowance for credit losses (55,644) (29,079) Total loans held for investment, net $ 3,541,395 $ 3,422,187 Loans with unpaid principal in the amount of $889.3 million and $945.9 million at June 30, 2020 and December 31, 2019, respectively, were pledged to the FHLB as collateral for borrowings. Non-accrual and Delinquent Status Loans are placed on non-accrual when (1) payment in full of principal and interest is no longer expected or (2) principal or interest has been in default for 90 days or more unless the loan is both well secured with marketable collateral and in the process of collection. All loans rated doubtful or worse, and certain loans rated substandard, are placed on non-accrual. A non-accrual loan may be restored to an accrual status when (1) all past due principal and interest has been paid (excluding renewals and modifications that involve the capitalizing of interest) or (2) the loan becomes well secured with marketable collateral and is in the process of collection. An established track record of performance is also considered when determining accrual status. Loans are considered past due or delinquent when the contractual principal or interest due in accordance with the terms of the loan agreement or any portion thereof remains unpaid after the due date of the scheduled payment. As of June 30, 2020, the Company had no commitments to lend additional funds to borrowers who have a nonaccrual loan. The following table presents the amortized cost basis of loans based on delinquency status: Age Analysis of Past-Due Financial Assets 90 Days or More Past Due And Accruing (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total June 30, 2020 Agricultural $ 138,409 $ 522 $ 351 $ 1,555 $ 140,837 $ — Commercial and industrial 1,078,603 245 1,134 4,545 1,084,527 35 Commercial real estate: Construction and development 194,965 3,663 707 615 199,950 — Farmland 151,530 388 1,221 8,758 161,897 — Multifamily 247,403 — — — 247,403 — Commercial real estate-other 1,147,912 1,432 — 6,145 1,155,489 — Total commercial real estate 1,741,810 5,483 1,928 15,518 1,764,739 — Residential real estate: One- to four- family first liens 368,201 2,142 1,740 5,017 377,100 3,197 One- to four- family junior liens 154,769 552 259 234 155,814 — Total residential real estate 522,970 2,694 1,999 5,251 532,914 3,197 Consumer 73,768 136 13 105 74,022 6 Total $ 3,555,560 $ 9,080 $ 5,425 $ 26,974 $ 3,597,039 $ 3,238 December 31, 2019 Agricultural $ 137,715 $ 975 $ — $ 1,756 $ 140,446 $ — Commercial and industrial 828,842 846 270 5,278 835,236 — Commercial real estate: Construction and development 294,995 2,256 621 205 298,077 — Farmland 175,281 362 — 6,242 181,885 — Multifamily 227,013 394 — — 227,407 — Commercial real estate-other 1,102,504 1,965 347 2,674 1,107,490 — Total commercial real estate 1,799,793 4,977 968 9,121 1,814,859 — Residential real estate: One- to four- family first liens 402,471 2,579 857 1,511 407,418 99 One- to four- family junior liens 169,592 518 108 163 170,381 25 Total residential real estate 572,063 3,097 965 1,674 577,799 124 Consumer 82,558 150 80 138 82,926 12 Total $ 3,420,971 $ 10,045 $ 2,283 $ 17,967 $ 3,451,266 $ 136 The following table presents the amortized cost basis of loans on non-accrual status, loans past due 90 days or more and still accruing by class of loan and related interest income recognized: Three Months Ended June 30, Six Months Ended June 30, (in thousands) Beginning of Period Nonaccrual End of Period Nonaccrual Nonaccrual with no Allowance for Credit Losses 90 Days or More Past Due And Accruing Interest Income Recognized on Nonaccrual Interest Income Recognized on Nonaccrual As of and for the Three and Six Months Ended June 30, 2020 Agricultural $ 2,894 $ 3,187 $ 1,611 $ — $ 16 $ 80 Commercial and industrial 13,276 10,041 5,104 35 45 101 Commercial real estate: Construction and development 1,494 879 701 — 6 41 Farmland 10,402 14,178 12,593 — 9 93 Multifamily — — — — — 1 Commercial real estate-other 10,141 9,980 3,099 — 3 24 Total commercial real estate 22,037 25,037 16,393 — 18 159 Residential real estate: One- to four- family first liens 2,557 2,293 207 3,197 33 41 One- to four- family junior liens 513 583 1 — 6 7 Total residential real estate 3,070 2,876 208 3,197 39 48 Consumer 206 162 13 6 6 8 Total $ 41,483 $ 41,303 $ 23,329 $ 3,238 $ 124 $ 396 Credit Quality Information The Company aggregates loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as: current financial information, historical payment experience, credit documentation, and other factors. The Company analyzes loans individually to classify the loans as to credit risk. This analysis includes non-homogenous loans, such as agricultural, commercial and industrial, and commercial real estate loans. Loans not meeting the criteria described below that are analyzed individually are considered to be pass-rated. The Company uses the following definitions for risk ratings: Special Mention/Watch - A special mention/watch asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the Company’s credit position at some future date. Special mention/watch assets are not adversely classified and do not expose the Company to sufficient risk to warrant adverse classification. Substandard - Substandard loans are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Doubtful - Loans classified as doubtful have all the weaknesses inherent in those classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently known facts, conditions and values, highly questionable and improbable. Loss - Loans classified as loss are considered uncollectible and of such little value that their continuance as bankable assets is not warranted. This classification does not mean that the loan has absolutely no recovery or salvage value but rather it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may be affected in the future. Homogenous loans, including residential real estate and consumer loans, are not individually risk rated. Instead, these loans are categorized based on performance: performing and nonperforming. Nonperforming loans include those loans on nonaccrual, loans greater than 90 days past due and on accrual, and TDRs on accrual. The following table sets forth the amortized cost basis of loans by class of receivable by credit quality indicator and vintage based on the most recent analysis performed, as of June 30, 2020. As of June 30, 2020, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans June 30, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Total Agricultural Pass $ 21,013 $ 11,300 $ 4,898 $ 2,906 $ 2,753 $ 3,067 $ 71,689 $ 117,626 Special mention / watch 5,905 1,422 125 113 600 1,253 6,206 15,624 Substandard 1,093 1,282 2 191 131 227 4,661 7,587 Doubtful — — — — — — — — Total $ 28,011 $ 14,004 $ 5,025 $ 3,210 $ 3,484 $ 4,547 $ 82,556 $ 140,837 Commercial and industrial Pass $ 486,629 $ 114,316 $ 70,083 $ 77,159 $ 44,088 $ 114,435 $ 125,003 $ 1,031,713 Special mention / watch 5,018 1,309 1,953 4,243 906 3,356 18,615 35,400 Substandard 3,036 2,569 752 974 624 4,416 5,043 17,414 Doubtful — — — — — — — — Total $ 494,683 $ 118,194 $ 72,788 $ 82,376 $ 45,618 $ 122,207 $ 148,661 $ 1,084,527 CRE - Construction and development Pass $ 50,048 $ 76,696 $ 25,444 $ 8,655 $ 1,932 $ 1,308 $ 26,494 $ 190,577 Special mention / watch 4,159 1,688 775 — 14 34 — 6,670 Substandard 735 1,919 — — — 49 — 2,703 Doubtful — — — — — — — — Total $ 54,942 $ 80,303 $ 26,219 $ 8,655 $ 1,946 $ 1,391 $ 26,494 $ 199,950 CRE - Farmland Pass $ 37,140 $ 32,227 $ 14,315 $ 15,023 $ 10,590 $ 18,171 $ 2,257 $ 129,723 Special mention / watch 2,244 4,584 1,290 1,953 1,237 587 353 12,248 Substandard 2,732 3,632 4,339 1,729 449 6,051 994 19,926 Doubtful — — — — — — — — Total $ 42,116 $ 40,443 $ 19,944 $ 18,705 $ 12,276 $ 24,809 $ 3,604 $ 161,897 CRE - Multifamily Pass $ 109,637 $ 17,948 $ 18,346 $ 37,740 $ 16,722 $ 32,726 $ 12,788 $ 245,907 Special mention / watch 348 — — — 78 — — 426 Substandard 716 354 — — — — — 1,070 Doubtful — — — — — — — — Total $ 110,701 $ 18,302 $ 18,346 $ 37,740 $ 16,800 $ 32,726 $ 12,788 $ 247,403 CRE - other Pass $ 385,335 $ 129,669 $ 84,625 $ 106,504 $ 81,037 $ 147,048 $ 50,888 $ 985,106 Special mention / watch 85,815 24,505 6,821 6,526 4,537 5,671 199 134,074 Substandard 24,446 1,480 6,296 1,246 604 2,101 136 36,309 Doubtful — — — — — — — — Total $ 495,596 $ 155,654 $ 97,742 $ 114,276 $ 86,178 $ 154,820 $ 51,223 $ 1,155,489 RRE - One- to four- family first liens Performing $ 71,419 $ 61,180 $ 52,230 $ 47,208 $ 43,567 $ 85,959 $ 10,046 $ 371,609 Nonperforming 17 67 588 1,092 930 2,797 — 5,491 Total $ 71,436 $ 61,247 $ 52,818 $ 48,300 $ 44,497 $ 88,756 $ 10,046 $ 377,100 RRE - One- to four- family junior liens Performing $ 3,687 $ 12,453 $ 16,629 $ 8,207 $ 4,343 $ 7,568 $ 102,345 $ 155,232 Nonperforming — — — 32 250 229 71 582 Total $ 3,687 $ 12,453 $ 16,629 $ 8,239 $ 4,593 $ 7,797 $ 102,416 $ 155,814 Consumer Performing $ 12,933 $ 19,438 $ 14,079 $ 6,857 $ 3,607 $ 6,203 $ 10,743 $ 73,860 Nonperforming — 38 49 24 14 37 — 162 Total $ 12,933 $ 19,476 $ 14,128 $ 6,881 $ 3,621 $ 6,240 $ 10,743 $ 74,022 Term Loans by Origination Year Revolving Loans 2020 2019 2018 2017 2016 Prior Total Total by Credit Quality Indicator Category Pass $ 1,089,802 $ 382,156 $ 217,711 $ 247,987 $ 157,122 $ 316,755 $ 289,119 $ 2,700,652 Special mention / watch 103,489 33,508 10,964 12,835 7,372 10,901 25,373 204,442 Substandard 32,758 11,236 11,389 4,140 1,808 12,844 10,834 85,009 Doubtful — — — — — — — — Performing 88,039 93,071 82,938 62,272 51,517 99,730 123,134 600,701 Nonperforming 17 105 637 1,148 1,194 3,063 71 6,235 Total $ 1,314,105 $ 520,076 $ 323,639 $ 328,382 $ 219,013 $ 443,293 $ 448,531 $ 3,597,039 The following table sets forth the risk category of loans by class of loans and credit quality indicator used on the most recent analysis performed as of December 31, 2019: 2019 Pass Special Mention / Watch Substandard Doubtful Loss Total Agricultural $ 117,374 $ 13,292 $ 9,780 $ — $ — $ 140,446 Commercial and industrial 794,526 19,038 21,635 1 36 835,236 Commercial real estate: Construction and development 283,921 11,423 2,733 — — 298,077 Farmland 141,107 21,307 19,471 — — 181,885 Multifamily 226,124 90 1,193 — — 227,407 Commercial real estate-other 1,036,418 50,691 20,381 — — 1,107,490 Total commercial real estate 1,687,570 83,511 43,778 — — 1,814,859 Residential real estate: One- to four- family first liens 396,175 4,547 6,532 164 — 407,418 One- to four- family junior liens 168,229 1,282 870 — — 170,381 Total residential real estate 564,404 5,829 7,402 164 — 577,799 Consumer 82,650 39 218 19 — 82,926 Total $ 3,246,524 $ 121,709 $ 82,813 $ 184 $ 36 $ 3,451,266 Allowance for Credit Losses At June 30, 2020, the economic forecast used by the Company showed continued increases in Midwest unemployment over the next three forecasted quarters, with improvements starting in the fourth quarter; increases in national retail sales over the next four forecasted quarters; decreases in the CRE index over the next three forecasted quarters, with improvements beginning in the fourth quarter; decreases in U.S. GDP over the next two forecasted quarters, with improvements starting in the third quarter; decreases in the national home price index; and increases in the U.S. rental vacancy rate through the second forecasted quarter, with improvements starting in the third quarter. Consistent with the prior quarter, these loss drivers are worse when compared to recent historical trends over the past several years, largely as a result of the COVID-19 pandemic. We have made a policy election to report interest receivable as a separate line on the balance sheet. Accrued interest receivable, which is recorded within 'Other Assets' totaled $15.3 million at June 30, 2020 and is excluded from the estimate of credit losses. The changes in the allowance for credit losses by portfolio segment were as follows: For the Three Months Ended June 30, 2020 and 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total For the Three Months June 30, 2020 Beginning balance $ 1,146 $ 19,309 $ 23,138 $ 6,425 $ 1,169 $ 51,187 Charge-offs (109) (902) (792) (103) (197) (2,103) Recoveries 1 166 11 8 50 236 Credit loss expense (1) 370 136 5,864 (256) 210 6,324 Ending balance $ 1,408 $ 18,709 $ 28,221 $ 6,074 $ 1,232 $ 55,644 For the Three Months Ended June 30, 2019 Beginning balance $ 3,691 $ 7,594 $ 14,798 $ 3,272 $ 297 $ 29,652 Charge-offs (16) (1,759) (310) (1) (101) (2,187) Recoveries 2 100 257 8 163 530 Credit loss expense 43 1,698 (1,090) 98 (53) 696 Ending balance $ 3,720 $ 7,633 $ 13,655 $ 3,377 $ 306 $ 28,691 For the Six Months Ended June 30, 2020 and 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total For the Six Months Ended June 30, 2020 Beginning balance, prior to adoption of ASC 326 $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 Day 1 transition adjustment from adoption of ASC 326 (2,557) 2,728 1,300 2,050 463 3,984 Charge-offs (193) (1,373) (1,512) (103) (419) (3,600) Recoveries 26 379 19 15 96 535 Credit loss expense (1) 384 8,581 14,610 1,427 644 25,646 Ending balance $ 1,408 $ 18,709 $ 28,221 $ 6,074 $ 1,232 $ 55,644 For the Six Months Ended June 30, 2019 Beginning balance $ 3,637 $ 7,478 $ 15,635 $ 2,349 $ 208 $ 29,307 Charge-offs (150) (2,113) (960) (50) (269) (3,542) Recoveries 9 148 265 17 197 636 Credit loss expense 224 2,120 (1,285) 1,061 170 2,290 Ending balance $ 3,720 $ 7,633 $ 13,655 $ 3,377 $ 306 $ 28,691 (1) The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss expense of $(1.6) million and $772 thousand related to off-balance sheet credit exposures for the three months and six months ended June 30, 2020, respectively. The composition of allowance for credit losses by portfolio segment based on evaluation method were as follows: As of June 30, 2020 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 2,747 $ 8,593 $ 23,714 $ 204 $ 8 $ 35,266 Collectively evaluated for impairment 138,090 1,075,934 1,741,025 532,710 74,014 3,561,773 Total $ 140,837 $ 1,084,527 $ 1,764,739 $ 532,914 $ 74,022 $ 3,597,039 Allowance for credit losses: Individually evaluated for impairment $ 490 $ 1,774 $ 915 $ — $ — $ 3,179 Collectively evaluated for impairment 918 16,935 27,306 6,074 1,232 52,465 Total $ 1,408 $ 18,709 $ 28,221 $ 6,074 $ 1,232 $ 55,644 As of December 31, 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 4,312 $ 12,242 $ 16,082 $ 838 $ 21 $ 33,495 Collectively evaluated for impairment 135,246 822,939 1,781,306 572,865 82,864 3,395,220 Purchased credit impaired loans 888 55 17,471 4,096 41 22,551 Total $ 140,446 $ 835,236 $ 1,814,859 $ 577,799 $ 82,926 $ 3,451,266 Allowance for loan losses: Individually evaluated for impairment $ 212 $ 2,198 $ 1,180 $ 73 $ — $ 3,663 Collectively evaluated for impairment 3,536 6,194 11,836 2,152 448 24,166 Purchased credit impaired loans — 2 788 460 — 1,250 Total $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 The following table presents the amortized cost basis of collateral dependent loans, by the primary collateral type, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans: As of June 30, 2020 Primary Type of Collateral Real Estate Equipment Other Total ACL Allocation Agricultural $ 124 $ 2,011 $ 612 $ 2,747 $ 490 Commercial and industrial 1,230 4,066 3,297 8,593 1,774 Commercial real estate: Construction and development 700 — — 700 — Farmland 13,646 — — 13,646 283 Multifamily — — — — — Commercial real estate-other 9,368 — — 9,368 632 Residential real estate: One- to four- family first liens 204 — — 204 — One- to four- family junior liens — — — — — Consumer — 8 — 8 — Total $ 25,272 $ 6,085 $ 3,909 $ 35,266 $ 3,179 Troubled Debt Restructurings TDRs totaled $8.9 million and $11.0 million as of June 30, 2020 and December 31, 2019, respectively. The following table sets forth information on the Company's TDRs by class of financing receivable occurring during the stated periods. TDRs may include multiple concessions, and the disclosure classifications in the table are based on the primary concession provided to the borrower. Three Months Ended June 30, 2020 2019 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) CONCESSION - Extended maturity date One- to four- family first liens 2 $ 145 $ 145 3 $ 240 $ 239 One- to four- family junior liens — — — 1 25 25 CONCESSION - Other Agricultural 1 208 208 — — — Farmland 2 354 354 — — — Total 5 $ 707 $ 707 4 $ 265 $ 264 Six Months Ended June 30, 2020 2019 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) CONCESSION - Extended maturity date Commercial real estate-other 3 $ 759 $ 808 — $ — $ — One- to four- family first liens 2 145 145 3 240 239 One- to four- family junior liens — — — 2 76 76 CONCESSION - Other Agricultural 1 208 208 — — — Farmland 2 354 354 — — — Total 8 $ 1,466 $ 1,515 5 $ 316 $ 315 For the three months and six months ended June 30, 2020, the Company had zero TDRs that redefaulted within 12 months subsequent to restructure. For the three and six months ended June 30, 2019, the Company had zero TDRs that redefaulted within 12 months subsequent to restructure. Modifications in response to COVID-19: The Company began offering short-term loan modifications to assist borrowers during the COVID-19 pandemic. The CARES Act along with a joint interagency statement issued by the federal banking agencies provides that short-term modifications made in response to COVID-19 do not need to be accounted for as a TDR. Accordingly, the Company does not account for such loan modifications as TDRs. The Company's loan modifications allow for the initial deferral of three months of principal and / or interest. The deferred interest is due and payable at the end of the deferral period and the deferred principal is due and payable on the maturity date. At June 30, 2020, we had granted short-term payment deferrals on $462.2 million of loans. The program is ongoing and additional loans continue to be granted deferrals. Pre-ASC 326 Adoption Impaired Loan Disclosures The following table presents loans individually evaluated for impairment by class of receivable, as of December 31, 2019: December 31, 2019 (in thousands) Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Agricultural $ 2,383 $ 2,913 $ — Commercial and industrial 7,391 10,875 — Commercial real estate: Construction and development 1,181 1,218 — Farmland 4,306 4,331 — Multifamily — — — Commercial real estate-other 5,709 5,854 — Total commercial real estate 11,196 11,403 — Residential real estate: One- to four- family first liens 577 578 — One- to four- family junior liens — — — Total residential real estate 577 578 — Consumer 21 21 — Total $ 21,568 $ 25,790 $ — With an allowance recorded: Agricultural $ 1,929 $ 1,930 $ 212 Commercial and industrial 4,851 5,417 2,198 Commercial real estate: Construction and development 135 135 135 Farmland 1,109 1,148 347 Multifamily — — — Commercial real estate-other 3,642 4,229 698 Total commercial real estate 4,886 5,512 1,180 Residential real estate: One- to four- family first liens 261 262 73 One- to four- family junior liens — — — Total residential real estate 261 262 73 Consumer — — — Total $ 11,927 $ 13,121 $ 3,663 Total: Agricultural $ 4,312 $ 4,843 $ 212 Commercial and industrial 12,242 16,292 2,198 Commercial real estate: Construction and development 1,316 1,353 135 Farmland 5,415 5,479 347 Multifamily — — — Commercial real estate-other 9,351 10,083 698 Total commercial real estate 16,082 16,915 1,180 Residential real estate: One- to four- family first liens 838 840 73 One- to four- family junior liens — — — Total residential real estate 838 840 73 Consumer 21 21 — Total $ 33,495 $ 38,911 $ 3,663 The following table presents the average recorded investment and interest income recognized for loans individually evaluated for impairment by class of receivable, during the stated period: Three Months Ended June 30, Six Months Ended June 30, 2019 2019 (in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Agricultural $ 2,632 $ 47 $ 2,227 $ 12 Commercial and industrial 4,347 — 4,610 — Commercial real estate: Construction and development — — — — Farmland 3,001 32 2,011 — Multifamily — — — — Commercial real estate-other 920 10 857 20 Total commercial real estate 3,921 42 2,868 20 Residential real estate: One- to four- family first liens 497 — 332 — One- to four- family junior liens 75 — 50 — Total residential real estate 572 — 382 — Consumer 21 — 14 — Total $ 11,493 $ 89 $ 10,101 $ 32 With an allowance recorded: Agricultural $ 2,363 $ 53 $ 2,279 $ 60 Commercial and industrial 4,271 — 4,042 — Commercial real estate: Construction and development — — — — Farmland 86 5 57 5 Multifamily — — — — Commercial real estate-other 2,044 10 1,931 12 Total commercial real estate 2,130 15 1,988 17 Residential real estate: One- to four- family first liens 526 6 440 8 One- to four- family junior liens — — — — Total residential real estate 526 6 440 8 Consumer — — — — Total $ 9,290 $ 74 $ 8,749 $ 85 Total: Agricultural $ 4,995 $ 100 $ 4,506 $ 72 Commercial and industrial 8,618 — 8,652 — Commercial real estate: Construction and development — — — — Farmland 3,087 37 2,068 5 Multifamily — — — — Commercial real estate-other 2,964 20 2,788 32 Total commercial real estate 6,051 57 4,856 37 Residential real estate: One- to four- family first liens 1,023 6 772 8 One- to four- family junior liens 75 — 50 — Total residential real estate 1,098 6 822 8 Consumer 21 — 14 — Total $ 20,783 $ 163 $ 18,850 $ 117 Purchased Credit Impaired Loans (Pre-ASC 326 Adoption) The following table summarizes the outstanding balance and carrying amount of our PCI loans that were identified prior to the adoption of ASC 326: December 31, 2019 (in thousands) Agricultural $ 904 Commercial and industrial 147 Commercial real estate 17,803 Residential real estate 4,136 Consumer 57 Outstanding balance 23,047 Carrying amount 22,551 Allowance for credit losses 1,250 Carrying amount, net of allowance for credit losses $ 21,301

Derivatives, Hedging Activities

Derivatives, Hedging Activities and Balance Sheet Offsetting	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives, Hedging Activities and Balance Sheet Offsetting	Derivatives, Hedging Activities and Balance Sheet Offsetting The following table presents the total notional amounts and gross fair values of the Company’s derivatives as of the dates indicated. The derivative asset and liability balances are presented on a gross basis, prior to the application of master netting agreements, as included in other assets and other liabilities, respectively, on the consolidated balance sheets. The fair values of the Company's derivative instrument assets and liabilities are summarized as follows: As of June 30, 2020 As of December 31, 2019 Notional Amount Fair Value Notional Amount Fair Value (in thousands) Assets Liabilities Assets Liabilities Designated as hedging instruments Fair value hedges Interest rate swaps $ 25,927 $ — $ 3,106 $ 16,734 $ — $ 1,113 Cash flow hedges Interest rate swaps 30,000 — 960 — — — Total $ 55,927 $ — $ 4,066 $ 16,734 $ — $ 1,113 Not designated as hedging instruments: Interest rate swaps $ 340,444 $ 14,388 $ 14,440 $ 113,632 $ 1,824 $ 1,999 RPAs - protection sold 4,589 3 — 4,702 24 — RPAs - protection purchased 9,920 — 11 10,009 — 130 Total $ 354,953 $ 14,391 $ 14,451 $ 128,343 $ 1,848 $ 2,129 Derivatives Designated as Hedging Instruments The Company uses derivative instruments to hedge its exposure to economic risks, including interest rate, liquidity, and credit risk. Certain hedging relationships are formally designated and qualify for hedge accounting under GAAP as fair value or cash flow hedges. Fair Value Hedges - Derivatives are designated as fair value hedges to limit the Company's exposure to changes in the fair value of assets or liabilities due to movements in interest rates. The Company entered into pay-fixed receive-floating interest rate swaps to manage its exposure to changes in fair value in certain fixed-rate assets. The gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. Cash Flow Hedges - Derivatives are designated as cash flow hedges in order to minimize the variability in cash flows of earning assets or forecasted transactions caused by movement in interest rates. In February 2020, the Company entered into a pay-fixed receive-variable interest rate swap with a notional of $30.0 million to hedge against adverse fluctuations in interest rates by reducing exposure to variability in cash flows relating to interest payments on the Company's variable rate debt. The interest rate swap is designated as a cash flow hedge. The gain or loss on the derivative is recorded in accumulated other comprehensive income and subsequently reclassified into interest expense in the same period(s) during which the hedged transaction affects earnings. During 2020, the Company estimates that an additional $356 thousand will be reclassified to interest expense. The table below presents the effect of cash flow hedge accounting on AOCI for three months and six months ended June 30, 2020 and 2019. Amount of Gain (Loss) Recognized in AOCI on Derivative Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Three Months Ended June 30, Three Months Ended June 30, (in thousands) 2020 2019 2020 2019 Interest rate swaps $ (129) $ — Interest Expense $ (62) $ — Amount of Gain (Loss) Recognized in AOCI on Derivative Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Six Months Ended June 30, Six Months Ended June 30, (in thousands) 2020 2019 2020 2019 Interest rate swaps $ (1,017) $ — Interest Expense $ (57) $ — The table below presents the effect of the Company’s derivative financial instruments designated as hedging instruments on the consolidated statements of income for the periods indicated: Location and Amount of Gain or Loss Recognized in Income on Fair Value and Cash Flow Hedging Relationships For the Three Months Ended June 30, For the Six Months Ended June 30, 2020 2019 2020 2019 (in thousands) Interest Income Interest Expense Interest Income Interest Expense Interest Income Interest Expense Interest Income Interest Expense Total amounts of income and expense line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded $ (80) $ — $ — $ — $ (127) $ — $ (1) $ — The effects of fair value and cash flow hedging: Gain (loss) on fair value hedging relationships in subtopic 815-20: Interest contracts: Hedged items 237 — 491 — 1,988 — 795 — Derivative designated as hedging instruments (232) — (491) — (1,993) — (796) — Income statement effect of cash flow hedging relationships in subtopic 815-20: Interest contracts: Amount reclassified from AOCI into income — 62 — — — 57 — — As of June 30, 2020, the following amounts were recorded on the balance sheet related to cumulative basis adjustment for fair value hedges: Line Item in the Balance Sheet in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset (in thousands) Loans $ 29,035 $ 3,099 Derivatives Not Designated as Hedging Instruments Interest Rate Swaps - The Company has also entered into interest rate swap contracts. The derivative contracts related to transactions in which the Company enters into an interest rate swap with a customer, while simultaneously entering into an offsetting interest rate swap with an institutional counterparty. Credit Risk Participation Agreements - The Company enters into RPAs to manage the credit exposure on interest rate contracts associated with a syndicated loan. The Company may enter into protection purchased RPAs with institutional counterparties to decrease or increase its exposure to a borrower. Under the RPA, the Company will receive or make payment if a borrower defaults on the related interest rate contract. The notional amount of the RPAs reflects the Company’s pro-rata share of the derivative instrument. The following table presents the net gains (losses) recognized on the consolidated statements of income related to the derivatives not designated as hedging instruments for the periods indicated: Location in the Consolidated Statements of Income For the Three Months Ended June 30, For the Six Months Ended June 30, (in thousands) 2020 2019 2020 2019 Interest rate swaps Other income $ (18) $ (108) $ 123 $ (130) RPAs Other income (6) (107) 97 (124) Total $ (24) $ (215) $ 220 $ (254) Offsetting of Derivatives The Company has entered into agreements with certain counterparty financial institutions, which include master netting agreements. However, the Company has elected to account for all derivatives with counterparty institutions on a gross basis. The Company manages the risk of default by its borrower counterparties through its normal loan underwriting and credit monitoring policies and procedures. The following table below presents gross derivatives and the respective collateral received or pledged in the form of other financial instruments as of June 30, 2020 and December 31, 2019, which are generally marketable securities and/or cash. The collateral amounts in the table below are limited to the outstanding balances of the related asset or liability (after netting is applied); thus instances of overcollateralization are not shown. Further, the net amounts of derivative assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets and liabilities are presented on the consolidated balance sheets. Gross Amounts Not Offset in the Balance Sheet (in thousands) Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Net Amounts of Assets (Liabilities) presented in the Balance Sheet Financial Instruments Cash Collateral Pledged Net Assets (Liabilities) As of June 30, 2020 Asset Derivatives $ 14,391 $ — $ 14,391 $ — $ — $ 14,391 Liability Derivatives (18,517) — (18,517) — (18,517) — As of December 31, 2019 Asset Derivatives $ 1,848 $ — $ 1,848 $ — $ — $ 1,848 Liability Derivatives (3,242) — (3,242) — (3,242) — Credit-risk-related Contingent Features The Company has an unsecured federal funds line with its institutional derivative counterparty. The Company has an agreement with its institutional derivative counterparty that contains a provision under which if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. The Company also has an agreement with its derivative counterparty that contains a provision under which the Company could be declared in default on its derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to the Company’s default on the indebtedness. As of June 30, 2020, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was $18.7 million. As of June 30, 2020, the Company had minimum collateral posting thresholds with certain of its derivative counterparties and has posted $14.4 million of collateral related to these agreements. If the Company had breached any of these provisions at June 30, 2020, it could have been required to settle its obligations under the agreements at their termination value of $18.7 million.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The following table presents the changes in the carrying amount of goodwill for the periods indicated: Six Months Ended June 30, (in thousands) 2020 Goodwill, beginning of period $ 91,918 Fair value adjustment 2,059 Total goodwill, end of period $ 93,977 Goodwill adjustments consisted of the ATBancorp acquisition purchase accounting adjustments, which were finalized in the first quarter of 2020. The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets at the dates indicated: As of June 30, 2020 As of December 31, 2019 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 41,745 $ (23,932) $ 17,813 $ 41,745 $ (21,032) $ 20,713 Customer relationship intangible 5,265 (2,000) 3,265 5,265 (1,195) 4,070 Other 2,700 (2,375) 325 2,700 (2,305) 395 $ 49,710 $ (28,307) $ 21,403 $ 49,710 $ (24,532) $ 25,178 Indefinite-lived trade name intangible $ 7,040 $ 7,040 The following table provides the estimate future amortization expense for the remaining six months ending December 31, 2020 and the succeeding periods: Core Deposit Intangible Customer Relationship Intangible Other Total Estimated Amortization Expense for the Year Ending December 31, 2020 $ 2,507 $ 630 $ 63 $ 3,200 2021 4,190 1,062 106 5,358 2022 3,487 797 79 4,363 2023 2,833 518 51 3,402 2024 2,180 239 24 2,443 Thereafter 2,616 19 2 2,637 Total $ 17,813 $ 3,265 $ 325 $ 21,403

Other Assets

Other Assets	6 Months Ended
	Jun. 30, 2020
Other Assets [Abstract]
Other Assets	Other Assets The components of the Company's other assets as of June 30, 2020 and December 31, 2019 were as follows: (in thousands) June 30, 2020 December 31, 2019 Bank-owned life insurance $ 82,411 $ 81,625 Interest receivable 21,082 18,525 FHLB stock 12,858 15,381 Mortgage servicing rights 5,833 7,026 Operating lease ROU assets, net 4,067 4,499 Federal & state taxes, current — 2,318 Federal & state taxes, deferred 7,435 3,530 Derivative assets 14,391 1,848 Other receivables/assets 12,464 13,208 $ 160,541 $ 147,960

Deposits

Deposits	6 Months Ended
	Jun. 30, 2020
Deposits [Abstract]
Deposits	Deposits The following table presents the composition of our deposits as of the dates indicated: (in thousands) As of June 30, 2020 As of December 31, 2019 Noninterest bearing deposits $ 867,637 $ 662,209 Interest checking deposits 1,153,697 962,830 Money market deposits 811,368 763,028 Savings deposits 463,262 387,142 Time deposits under $250,000 656,723 682,232 Time deposits of $250,000 or more 312,748 271,214 Total deposits $ 4,265,435 $ 3,728,655 The Company had $5.2 million and $6.6 million in brokered time deposits through the CDARS program as of June 30, 2020 and December 31, 2019, respectively. Included in money market deposits at June 30, 2020 and December 31, 2019 were $12.6 million and $10.1 million, respectively, of brokered deposits through the ICS program. As of June 30, 2020 and December 31, 2019, the Company had public entity deposits that were collateralized by investment securities of $130.7 million and $96.6 million, respectively.

Short-Term Borrowings

Short-Term Borrowings	6 Months Ended
	Jun. 30, 2020
Short-term Debt [Abstract]
Short-Term Borrowings	Short-Term Borrowings The following table summarizes our short-term borrowings as of the dates indicated: June 30, 2020 December 31, 2019 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Securities sold under agreements to repurchase 0.41 % $ 152,224 1.06 % $ 117,249 Federal Home Loan Bank advances — — 1.73 22,100 Unsecured line of credit 1.94 10,000 — — Total 0.51 % $ 162,224 1.17 % $ 139,349 Securities sold under agreements to repurchase are agreements in which the Company acquires funds by selling assets to another party under a simultaneous agreement to repurchase the same assets at a specified price and date. The Company enters into repurchase agreements and also offers a demand deposit account product to customers that sweeps their balances in excess of an agreed upon target amount into overnight repurchase agreements. All securities sold under agreements to repurchase are recorded on the face of the balance sheet. The Bank has a secured line of credit with the FHLBDM. Advances from the FHLBDM are collateralized primarily by one- to four-family residential, commercial and agricultural real estate first mortgages equal to various percentages of the total outstanding notes. See Note 4 . Loans Receivable and the Allowance for Credit Losses of the notes to the consolidated financial statements. The Bank has unsecured federal funds lines totaling $145.0 million from multiple correspondent banking relationships. There were no borrowings from such lines at either June 30, 2020 or December 31, 2019. At June 30, 2020 and December 31, 2019, the Company had no Federal Reserve Discount Window borrowings, while the financing capacity was $65.6 million as of June 30, 2020 and $12.7 million as of December 31, 2019. As of June 30, 2020 and December 31, 2019, the Bank had municipal securities with a market value of $70.2 million and $13.0 million, respectively, pledged to the Federal Reserve Bank of Chicago to secure potential borrowings.

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Junior Subordinated Notes Issued to Capital Trusts The table below summarizes the terms of each issuance of junior subordinated notes outstanding as of the dates indicated: (in thousands) Face Value Book Value Interest Rate Rate Maturity Date Callable Date June 30, 2020 ATBancorp Statutory Trust I $ 7,732 $ 6,832 Three-month LIBOR + 1.68% 1.99 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,821 Three-month LIBOR + 1.65% 1.96 % 06/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,750 Three-month LIBOR + 2.15% 2.46 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,808 Three-month LIBOR + 3.50% 3.81 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 1.90 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,675 December 31, 2019 ATBancorp Statutory Trust I $ 7,732 $ 6,814 Three-month LIBOR + 1.68% 3.57 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,794 Three-month LIBOR + 1.65% 3.54 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,732 Three-month LIBOR + 2.15% 4.08 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,783 Three-month LIBOR + 3.50% 5.39 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 3.48 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,587 Subordinated Debentures On May 1, 2019, with the acquisition of ATBancorp, the Company assumed $10.9 million of subordinated debentures (the "ATB Debentures"). These debentures have a stated maturity of May 31, 2023, and bear interest at a fixed annual rate of 6.50%, with interest payable semi-annually on March 15th and September 15th. The Company has the option to redeem the debentures, in whole or part, at any time on or after May 31, 2021. On July 28, 2020, the Company completed the private placement of $65.0 million of its subordinated notes with registration rights. The 5.75% fixed-to-floating rate subordinated notes are due July 2030. The debentures and subordinated notes constitute Tier 2 capital under the rules and regulations of the Federal Reserve applicable to the capital status of the subordinated debt of bank holding companies. The debentures and subordinated notes are phased out of Tier 2 capital by 20% of the amount of the debentures or subordinated notes in each of the five years beginning on the fifth anniversary preceding the maturity date of each debenture. At June 30, 2020, we were permitted to treat 40% of the ATB Debentures as Tier 2 capital. Other Long-Term Debt Long-term borrowings were as follows as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Finance lease payable 8.89 % $ 1,162 8.89 % $ 1,224 FHLB borrowings 1.92 108,246 2.25 145,700 Notes payable to unaffiliated bank 1.93 28,000 3.44 32,250 Total 1.98 % $ 137,408 2.51 % $ 179,174 As a member of the FHLBDM, the Bank may borrow funds from the FHLB in amounts up to 45% of the Bank’s total assets, provided the Bank is able to pledge an adequate amount of qualified assets to secure the borrowings. Advances from the FHLB are collateralized primarily by one- to four-family residential, commercial and agricultural real estate first mortgages equal to various percentages of the total outstanding notes. See Note 4 . Loans Receivable and the Allowance for Credit Losses of the notes to the consolidated financial statements. At June 30, 2020, FHLB long-term borrowings included advances from the FHLBC, which were collateralized by investment securities. See Note 3 . Debt Securities of the notes to the consolidated financial statements. On April 30, 2015, the Company entered into a $35.0 million unsecured note payable with a correspondent bank with a maturity date of June 30, 2020. As of June 30, 2020, the note was paid off.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense for the three months and six months ended June 30, 2020 and 2019 varied from the amount computed by applying the maximum effective federal income tax rate of 21%, to the income before income taxes, because of the following items: For the Three Months Ended June 30, For the Six Months Ended June 30, 2020 2019 2020 2019 (in thousands) Amount % of Pretax Income Amount % of Pretax Income Amount % of Pretax Income Amount % of Pretax Income Income tax based on statutory rate $ 2,994 21.0 % $ 2,917 21.0 % $ 2,118 21.0 % $ 4,844 21.0 % Tax-exempt interest (703) (4.9) (472) (3.4) (1,346) (13.3) (940) (4.1) Bank-owned life insurance (133) (0.9) (99) (0.7) (242) (2.4) (181) (0.8) State income taxes, net of federal income tax benefit 736 5.2 744 5.4 545 5.4 1,231 5.3 Non-deductible acquisition expenses — — 136 1.0 — — 162 0.7 General business credits (388) (2.7) (14) (0.1) (771) (7.6) (28) (0.1) Other 40 0.2 6 — 44 0.4 20 0.1 Total income tax expense $ 2,546 17.9 % $ 3,218 23.2 % $ 348 3.5 % $ 5,108 22.1 %

Earnings per Share

Earnings per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands, except per share amounts) 2020 2019 2020 2019 Basic Earnings Per Share: Net income $ 11,712 $ 10,674 $ 9,737 $ 17,959 Weighted average shares outstanding 16,094,084 14,893,854 16,117,792 13,536,646 Basic earnings per common share $ 0.73 $ 0.72 $ 0.60 $ 1.33 Diluted Earnings Per Share: Net income 11,712 $ 10,674 $ 9,737 $ 17,959 Weighted average shares outstanding, including all dilutive potential shares 16,099,682 14,900,057 16,125,375 13,545,290 Diluted earnings per common share $ 0.73 $ 0.72 $ 0.60 $ 1.33

Regulatory Capital Requirements

Regulatory Capital Requirements and Restrictions on Subsidiary Cash	6 Months Ended
	Jun. 30, 2020
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements and Restrictions on Subsidiary Cash	Regulatory Capital Requirements and Restrictions on Subsidiary CashThe Company (on a consolidated basis) and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company's consolidated financial statements. The capital amounts and classification also are subject to qualitative judgments by the regulators about components, risk weightings and other factors. A comparison of the Company's and the Bank's capital with the corresponding minimum regulatory requirements in effect as of June 30, 2020 and December 31, 2019, is presented below: Actual For Capital Adequacy Purposes With Capital Conservation Buffer(1) To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio At June 30, 2020 Consolidated: Total capital/risk weighted assets $485,309 11.72% $434,970 10.50% N/A N/A Tier 1 capital/risk weighted assets 434,207 10.48 352,118 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 392,532 9.48 289,980 7.00 N/A N/A Tier 1 leverage capital/average assets 434,207 8.72 199,225 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $513,922 12.47% $432,647 10.50% $412,045 10.00% Tier 1 capital/risk weighted assets 467,154 11.34 350,238 8.50 329,636 8.00 Common equity tier 1 capital/risk weighted assets 467,154 11.34 288,431 7.00 267,829 6.50 Tier 1 leverage capital/average assets 467,154 9.39 198,967 4.00 248,709 5.00 At December 31, 2019 Consolidated: Total capital/risk weighted assets $463,601 11.34% $429,077 10.50% N/A N/A Tier 1 capital/risk weighted assets 428,021 10.47 347,348 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 386,434 9.46 286,051 7.00 N/A N/A Tier 1 leverage capital/average assets 428,021 9.48 180,529 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $482,106 11.83% $427,877 10.50% $407,502 10.00% Tier 1 capital/risk weighted assets 453,027 11.12 346,377 8.50 326,002 8.00 Common equity tier 1 capital/risk weighted assets 453,027 11.12 285,251 7.00 264,876 6.50 Tier 1 leverage capital/average assets 453,027 10.06 180,209 4.00 231,166 5.00 (1) Includes a capital conservation buffer of 2.50% at June 30, 2020 and December 31, 2019.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Credit-related financial instruments : The Bank is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, commitments to sell loans, and standby letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheets. The Bank uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. The following table summarizes the Bank's commitments as of the dates indicated: June 30, 2020 December 31, 2019 (in thousands) Commitments to extend credit $ 892,199 $ 859,212 Commitments to sell loans 12,048 5,400 Standby letters of credit 30,809 36,192 Total $ 935,056 $ 900,804 The Bank's exposure to credit loss in the event of nonperformance by the counterparty to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent a future requirements. The Bank evaluates each customer's creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank upon extension of credit, is based on management's credit evaluation of the party. Collateral held varies, but may include accounts receivable, crops, livestock, inventory, property and equipment, residential real estate and income-producing commercial properties. Commitments to sell loans are agreements to sell loans held for sale to third parties at an agreed upon price. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements and, generally, have terms of one year or less. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Bank holds collateral, which may include accounts receivable, inventory, property, equipment and income-producing properties, that support those commitments, if deemed necessary. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Bank would be required to fund the commitment. The maximum potential amount of future payments the Bank could be required to make is represented by the contractual amount shown in the summary above. If the commitment is funded, the Bank would be entitled to seek recovery from the customer. Liability for Off-Balance Sheet Credit Losses : The Company records a liability for off-balance sheet credit losses through a charge to credit loss expense (or a reversal of credit loss expense) on the Company's consolidated statements of income and other liabilities on the Company's consolidated balance sheets. At June 30, 2020, the liability for off-balance-sheet credit losses totaled $4.2 million, whereas the total amount recorded within credit loss expense for the six months ended was $772 thousand. No liability was recorded in the prior year. Litigation: In the normal course of business, the Company and its subsidiaries have been named, from time to time, as defendants in various legal actions. Certain of the actual or threatened legal actions may include claims for substantial compensatory and/or punitive damages or claims for indeterminate amounts of damages. Management, after consulting with legal counsel, is of the opinion that the ultimate liability, if any, resulting from these pending or threatened actions and proceedings will not have a material effect on the financial statements of the Company. Concentrations of credit risk : Substantially all of the Bank’s loans, commitments to extend credit and standby letters of credit have been granted to customers in the Bank’s market areas. Although the loan portfolio of the Bank is diversified, approximately 64% of the loans are real estate loans and approximately 8% are agriculturally related. The concentrations of credit by type of loan are set forth in Note 4 . Loans Receivable and the Allowance for Credit Losses

Fair Value of Financial Instrum

Fair Value of Financial Instruments and Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments and Fair Value Measurements	Fair Value of Financial Instruments and Fair Value Measurements Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values: • Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. • Level 2 – Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Significant unobservable inputs that reflect a company's own assumptions about the assumptions that market participants would use in pricing an asset or liability. For information regarding the valuation methodologies used to measure our assets recorded at fair value (under ASC Topic 820), and for estimating fair value for financial instruments not recorded at fair value (under ASC Topic 825, as amended by ASU 2016-01 and ASU 2018-03), see Note 1. Nature of Business and Significant Accounting Policies and Note 20. Estimated Fair Value of Financial Instruments and Fair Value Measurements to the consolidated financial statements in the Company's 2019 Annual Report on Form 10-K, filed with the SEC on March 6, 2020. The Company uses fair value to measure certain assets and liabilities on a recurring basis, primarily available for sale and derivatives. For assets measured at the lower of cost or fair value, the fair value measurement criteria may or may not be met during a reporting period and such measurements are therefore considered "nonrecurring" for purposes of disclosing our fair value measurements. Fair value is used on a nonrecurring basis to adjust carrying values for impaired loans and other real estate owned. Recurring Basis Assets and liabilities measured at fair value on a recurring basis comprise the following as of the dates indicated: Fair Value Measurement at June 30, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Government agencies and corporations $ 410 $ — $ 410 $ — State and political subdivisions 434,046 — 434,046 — Mortgage-backed securities 79,685 — 79,685 — Collateralized mortgage obligations 360,028 — 360,028 — Corporate debt securities 313,286 — 313,286 — Derivative assets 14,391 — 14,391 — Liabilities: Derivative liabilities $ 18,517 $ — $ 18,517 $ — Fair Value Measurement at December 31, 2019 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Debt securities available for sale: U.S. Government agencies and corporations $ 441 $ — $ 441 $ — State and political subdivisions 257,205 — 257,205 — Mortgage-backed securities 43,530 — 43,530 — Collateralized mortgage obligations 292,946 — 292,946 — Corporate debt securities 191,855 — 191,855 — Derivative assets 1,848 — 1,848 — Liabilities: Derivative liabilities $ 3,242 $ — $ 3,242 $ — There were no transfers of assets between Level 3 and other levels of the fair value hierarchy during the six months ended June 30, 2020 or the year ended December 31, 2019. Changes in the fair value of available for sale debt securities are included in other comprehensive income. Nonrecurring Basis The following tables present assets measured at fair value on a nonrecurring basis as of the dates indicated: Fair Value Measurement at June 30, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent impaired loans $ 8,798 $ — $ — $ 8,798 Foreclosed assets, net 965 — — 965 Fair Value Measurement at December 31, 2019 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent impaired loans $ 6,749 $ — $ — $ 6,749 Foreclosed assets, net 3,706 — — 3,706 The following table presents the valuation technique(s), unobservable inputs, and quantitative information about the unobservable inputs used for fair value measurements of the financial instruments held by the Company and categorized within Level 3 of the fair value hierarchy as of the date indicated: Fair Value at (dollars in thousands) June 30, 2020 December 31, 2019 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Collateral dependent impaired loans $ 8,798 $ 6,749 Fair value of collateral Valuation adjustments — % - 90 % 31 % Foreclosed assets, net $ 965 3,706 Fair value of collateral Valuation adjustments 8 % - 47 % 27 % The carrying amount and estimated fair value of financial instruments at June 30, 2020 and December 31, 2019 were as follows: June 30, 2020 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 117,210 $ 117,210 $ 117,210 $ — $ — Debt securities available for sale 1,187,455 1,187,455 — 1,187,455 — Loans held for sale 12,048 12,401 — 12,401 — Loans held for investment, net 3,541,395 3,597,325 — — 3,597,325 Interest receivable 21,082 21,082 — 21,082 — Federal Home Loan Bank stock 12,858 12,858 — 12,858 — Derivative assets 14,391 14,391 — 14,391 — Financial liabilities: Non-interest bearing deposits 867,637 867,637 867,637 — — Interest-bearing deposits 3,397,798 3,405,414 2,428,327 977,087 — Short-term borrowings 162,224 162,224 162,224 — — Finance leases payable 1,162 1,162 — 1,162 — Federal Home Loan Bank borrowings 108,246 111,902 — 111,902 — Junior subordinated notes issued to capital trusts 41,675 34,546 — 34,546 — Subordinated debentures 10,890 11,123 — 11,123 — Other long-term debt 28,000 28,000 — 28,000 — Derivative liabilities 18,517 18,517 — 18,517 — December 31, 2019 (in thousands) Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 73,484 $ 73,484 $ 73,484 $ — $ — Debt securities available for sale 785,977 785,977 — 785,977 — Loans held for sale 5,400 5,476 — 5,476 — Loans held for investment, net 3,422,187 3,427,952 — — 3,427,952 Interest receivable 18,525 18,525 — 18,525 — Federal Home Loan Bank stock 15,381 15,381 — 15,381 — Derivative assets 1,848 1,848 — 1,848 — Financial liabilities: Non-interest bearing deposits 662,209 662,209 662,209 — — Interest-bearing deposits 3,066,446 3,066,427 2,113,000 953,427 — Short-term borrowings 139,349 139,349 139,349 — — Finance leases payable 1,224 1,224 — 1,224 — Federal Home Loan Bank borrowings 145,700 146,913 — 146,913 — Junior subordinated notes issued to capital trusts 41,587 39,391 — 39,391 — Subordinated debentures 10,899 11,083 — 11,083 — Other long-term debt 32,250 32,250 — 32,250 — Derivative liabilities 3,242 3,242 — 3,242 —

Leases

Leases	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. The Company adopted FASB Topic 842 on January 1, 2019. Substantially all of the leases in which the Company is the lessee are comprised of real estate property for branches and office space with terms extending through 2025. We do not have any subleased properties. Substantially all of our leases are classified as operating leases, and therefore, were previously not recognized on the Company’s consolidated balance sheets. The Company has one existing finance lease (previously referred to as a capital lease) for a branch location with a lease term through 2025. Supplemental balance sheet information related to leases was as follows: (in thousands) Classification June 30, 2020 December 31, 2019 Lease Right-of-Use Assets Operating lease right-of-use assets Other assets $ 4,067 $ 4,499 Finance lease right-of-use asset Premises and equipment, net 589 637 Total right-of-use assets $ 4,656 $ 5,136 Lease Liabilities Operating lease liability Other liabilities $ 5,036 $ 5,430 Finance lease liability Long-term debt 1,162 1,224 Total lease liabilities $ 6,198 $ 6,654 Weighted-average remaining lease term Operating leases 8.22 years 8.90 years Finance lease 6.17 years 6.67 years Weighted-average discount rate Operating leases 3.58 % 3.78 % Finance lease 8.89 % 8.89 % The calculated amount of the right-of-use assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. For operating leases existing prior to January 1, 2019, the rate for the remaining lease term as of January 1, 2019 was used. For finance leases, the Company utilizes the rate implicit in the lease. The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Three Months Ended Six Months Ended June 30, June 30, (in thousands) 2020 2019 2020 2019 Lease Costs Operating lease cost $ 409 $ 257 $ 728 $ 450 Variable lease cost 109 13 147 40 Short-term lease cost — — — — Interest on lease liabilities (1) 26 28 52 57 Amortization of right-of-use assets 24 24 48 48 Net lease cost $ 568 $ 322 $ 975 $ 595 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 651 $ 455 $ 1,154 $ 838 Operating cash flows from finance lease 26 41 52 83 Finance cash flows from finance lease 31 28 62 55 Right-of-use assets obtained in exchange for new operating lease liabilities 94 1,599 94 1,599 Right-of-use assets obtained in exchange for new finance lease liabilities — — — — (1) Included in long-term debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in occupancy expense of premises, net. Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of June 30, 2020 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2020 $ 116 $ 554 December 31, 2021 235 1,093 December 31, 2022 240 993 December 31, 2023 245 932 December 31, 2024 250 702 Thereafter 426 2,138 Total undiscounted lease payment $ 1,512 $ 6,412 Amounts representing interest (350) (1,376) Lease liability $ 1,162 $ 5,036
Leases	Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. The Company adopted FASB Topic 842 on January 1, 2019. Substantially all of the leases in which the Company is the lessee are comprised of real estate property for branches and office space with terms extending through 2025. We do not have any subleased properties. Substantially all of our leases are classified as operating leases, and therefore, were previously not recognized on the Company’s consolidated balance sheets. The Company has one existing finance lease (previously referred to as a capital lease) for a branch location with a lease term through 2025. Supplemental balance sheet information related to leases was as follows: (in thousands) Classification June 30, 2020 December 31, 2019 Lease Right-of-Use Assets Operating lease right-of-use assets Other assets $ 4,067 $ 4,499 Finance lease right-of-use asset Premises and equipment, net 589 637 Total right-of-use assets $ 4,656 $ 5,136 Lease Liabilities Operating lease liability Other liabilities $ 5,036 $ 5,430 Finance lease liability Long-term debt 1,162 1,224 Total lease liabilities $ 6,198 $ 6,654 Weighted-average remaining lease term Operating leases 8.22 years 8.90 years Finance lease 6.17 years 6.67 years Weighted-average discount rate Operating leases 3.58 % 3.78 % Finance lease 8.89 % 8.89 % The calculated amount of the right-of-use assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. For operating leases existing prior to January 1, 2019, the rate for the remaining lease term as of January 1, 2019 was used. For finance leases, the Company utilizes the rate implicit in the lease. The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Three Months Ended Six Months Ended June 30, June 30, (in thousands) 2020 2019 2020 2019 Lease Costs Operating lease cost $ 409 $ 257 $ 728 $ 450 Variable lease cost 109 13 147 40 Short-term lease cost — — — — Interest on lease liabilities (1) 26 28 52 57 Amortization of right-of-use assets 24 24 48 48 Net lease cost $ 568 $ 322 $ 975 $ 595 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 651 $ 455 $ 1,154 $ 838 Operating cash flows from finance lease 26 41 52 83 Finance cash flows from finance lease 31 28 62 55 Right-of-use assets obtained in exchange for new operating lease liabilities 94 1,599 94 1,599 Right-of-use assets obtained in exchange for new finance lease liabilities — — — — (1) Included in long-term debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in occupancy expense of premises, net. Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of June 30, 2020 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2020 $ 116 $ 554 December 31, 2021 235 1,093 December 31, 2022 240 993 December 31, 2023 245 932 December 31, 2024 250 702 Thereafter 426 2,138 Total undiscounted lease payment $ 1,512 $ 6,412 Amounts representing interest (350) (1,376) Lease liability $ 1,162 $ 5,036

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On July 29, 2020, the board of directors of the Company declared a cash dividend of $0.22 per share payable on September 15, 2020 to shareholders of record as of the close of business on September 1, 2020. On July 28, 2020, the Company completed a private placement offering of $65.0 million of subordinated debt with registration rights. The 5.75% fixed-to-floating rate subordinated notes are due July 2030. For regulatory capital purposes, the subordinated notes have been structured to qualify initially as Tier 2 Capital for the Company. On July 28, 2020, the Company paid, with interest, the total amount that was outstanding under the Company's revolving credit facility, which was $10.0 million as of June 30, 2020. Effective October 28, 2020, the Company plans to consolidate its branch office in Newport, Minnesota into its nearby branch office in South St. Paul, Minnesota. This branch consolidation is part of the Company's strategy to improve operating efficiency. The Company estimates the branch consolidation will reduce its annual operating expenses by approximately $360 thousand.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying interim condensed consolidated financial statements are prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2019, filed with the SEC on March 6, 2020.
Risks and Uncertainties	Risks and Uncertainties The outbreak of COVID-19 has adversely impacted a broad range of industries in which the Company’s customers operate and could impair their ability to fulfill their financial obligations to the Company. The World Health Organization declared COVID-19 to be a global pandemic, indicating that almost all public commerce and related business activities must be, to varying degrees, curtailed with the goal of decreasing the rate of new infections. The spread of the outbreak has caused significant disruptions in the U.S. economy and has disrupted banking and other financial activity in the areas in which the Company operates. While there has been no material impact to the Company’s employees to date, COVID-19 could also potentially create widespread business continuity issues for the Company. Congress, the President, and the FRB have taken several actions designed to cushion the economic fallout. Most notably, the CARES Act was signed into law at the end of March 2020 as a $2 trillion legislative package. The goal of the CARES Act was to prevent a severe economic downturn through various measures, including direct financial aid to American families and economic stimulus to significantly impacted industry sectors. The package also includes extensive emergency funding for hospitals and healthcare providers. In addition to the general impact of COVID-19, certain provisions of the CARES Act as well as other recent legislative and regulatory relief efforts are expected to have a material impact on the Company’s operations. The Company’s business is dependent upon the willingness and ability of its employees and customers to conduct banking and other financial transactions. If the global response to contain COVID-19 escalates further or is unsuccessful, the Company could experience a material adverse effect on its business, financial condition, results of operations and cash flows. While it is not possible to know the full universe or extent that the impact of COVID-19, and resulting measures to curtail its spread, will have on the Company’s operations, the Company discloses in this report potentially material items of which it is aware at the time this report is filed with the SEC. Financial position and results of operations The Company’s interest income could be reduced due to COVID-19. In accordance with CARES Act provisions and regulatory guidance, the Company is actively working with COVID-19 affected borrowers to defer their payments, interest, and fees. While interest and fees will still accrue to income, through normal GAAP accounting, should eventual credit losses on these deferred payments emerge, interest income and fees accrued would need to be reversed. In such a scenario, interest income in future periods could be negatively impacted. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 may affect its borrowers’ ability to repay in future periods. The Company’s fee income could be reduced due to COVID-19. In keeping with guidance from regulators, the Company is actively working with COVID-19 affected customers to waive fees from a variety of sources, such as, but not limited to, insufficient funds and overdraft fees, ATM fees, account maintenance fees, etc. These reductions in fees are thought, at this time, to be temporary in conjunction with the length of the expected COVID-19 related economic crisis. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 is likely to impact its fee income in future periods. Capital and liquidity While the Company believes that it has sufficient capital to withstand an extended economic recession brought about by COVID-19, its reported and regulatory capital ratios could be adversely impacted by further credit losses. On July 28, 2020, the Company completed the private placement of $65.0 million of its subordinated notes with registration rights. The 5.75% fixed-to-floating rate subordinated notes are due July 2030. For regulatory capital purposes, the subordinated notes have been structured to qualify initially as Tier 2 Capital for the Company. The Company relies on cash on hand as well as dividends from its subsidiary bank to service its debt. If the Company’s capital deteriorates such that its subsidiary bank is unable to pay dividends to it for an extended period of time, the Company may not be able to service its debt. If an extended recession causes large numbers of the Company’s deposit customers to withdraw their funds, the Company might become more reliant on volatile or more expensive sources of funding. Asset valuation Currently, the Company does not expect COVID-19 to affect its ability to account timely for the assets on its balance sheet; however, this could change in future periods. While certain valuation assumptions and judgments will change to account for pandemic-related circumstances such as widening credit spreads, the Company does not anticipate significant changes in methodology used to determine the fair value of assets measured in accordance with GAAP. Due to the economic impact that COVID-19 has had on the Company, management concluded that factors, such as the decline in macroeconomic conditions and a sustained decrease in share price, have led to the occurrence of a triggering event and therefore an interim impairment test over goodwill was performed as of June 30, 2020. As part of this interim impairment assessment, in the event that the Company concluded that all or a portion of its goodwill is impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Based upon the results of our interim goodwill assessment, we have concluded that an impairment did not exist as of the time of the assessment. It is possible that the lingering effects of COVID-19 could cause the occurrence of what management would deem to be subsequent triggering events that could, under certain circumstances, cause us to perform a goodwill or intangible asset impairment test and result in an impairment charge being recorded for that period. In the event that the Company concludes that all or a portion of its goodwill or intangible assets are impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Processes, controls and business continuity plan The Company has invoked its Business Continuity Plan that includes a remote working strategy. The Company does not anticipate incurring additional material costs related to its continued deployment of the remote working strategy. No material operational or internal control challenges or risks have been identified to date. The Company does not anticipate significant challenges to its ability to maintain its systems and controls in light of the measures the Company has taken to prevent the spread of COVID-19. The Company does not currently face any material resource constraint through the implementation of its business continuity plans. Credit The Company is working with customers directly affected by COVID-19. The Company is prepared to offer short-term assistance in accordance with regulatory guidelines. As a result of the current economic environment caused by the COVID-19 virus, the Company is engaging in more frequent communication with borrowers to better understand their situation and the
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amounts of assets and liabilities, (2) the disclosure of contingent assets and liabilities at the date of the financial statements, and (3) the reported amounts of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. The results for the six months ended June 30, 2020 may not be indicative of results for the year ending December 31, 2020, or for any other period.
Segment Reporting	Segment Reporting The Company’s activities are considered to be one reportable segment. The Company is engaged in the business of commercial and retail banking, and investment management with operations throughout Iowa, the Minneapolis/St. Paul metropolitan area of Minnesota, western Wisconsin, Naples and Fort Myers, Florida, and Denver, Colorado. Substantially all income is derived from a diverse base of commercial, mortgage and retail lending activities, and investments.
Allowance for Credit Losses	Allowance for Credit Losses Debt Securities Available for Sale For available for sale debt securities in an unrealized loss position, the Company evaluates the securities to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses related to debt securities AFS on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the ACL and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount must be recognized in earnings with a corresponding adjustment to the security’s amortized cost basis. Because the security’s amortized cost basis is adjusted to fair value, there is no ACL in this situation. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers’ financial condition, among other factors. Changes in the allowance for credit losses are recorded as credit loss expense (or reversal of credit loss expense). Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Accrued interest receivable is excluded from the estimate of credit losses. Loans Held for Investment Under the current expected credit loss model, the allowance for credit losses is a valuation account estimated at each balance sheet date and deducted from the amortized cost basis of loans held for investment to present the net amount expected to be collected. The Company estimates the ACL based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for collection of cash and charge-offs, as well as applicable accretion or amortization of premium, discount, and net deferred fees or costs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL. Expected credit losses are reflected in the allowance for credit losses through a charge to credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible, the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible; however, generally speaking, an asset will be considered uncollectible no later than when all efforts at collection have been exhausted. Subsequent recoveries, if any, are credited to the ACL when received. The Company measures expected credit losses of financial assets on a collective (pool) basis when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a DCF method or a loss-rate method to estimate expected credit losses. The Company’s methodologies for estimating the ACL consider available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company’s methodologies revert back to historical loss driver information on a straight-line basis over four quarters when it can no longer develop reasonable and supportable forecasts. The Company adjusted the reversion period from the previously disclosed six quarters to four quarters based upon current forecasted conditions. Discounted Cash Flow Method The Company uses the DCF method to estimate expected credit losses for the agricultural, commercial and industrial, CRE - construction and development, CRE - farmland, CRE - multifamily, CRE - other, RRE - owner-occupied one-to-four family first liens, RRE - nonowner-occupied one-to-four family first liens, RRE - one-to-four family junior liens, and consumer loan pools. For each of these pools, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical internal data. The Company uses regression analysis of historical internal and peer data to determine which variables are best suited to be economic variables utilized when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the economic variables. For the loan pools utilizing the DCF method, management utilizes one or multiple of the following economic variables: Midwest unemployment, national retail sales, CRE index, US rental vacancy rate, US gross domestic product, and national home price index (HPI). For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the difference between the instrument’s NPV and amortized cost basis. In addition, management utilizes qualitative factors to adjust the calculated ACL as appropriate. Qualitative factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Loss-Rate Method The Company uses a loss-rate method to estimate expected credit losses for the credit card and overdraft pools. For each of these pools, the Company applies an expected loss ratio based on internal and peer historical losses, adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Collateral Dependent Financial Assets Loans that do not share risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized costs basis of the financial asset exceeds the fair value of the underlying collateral less estimated cost to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. The Company’s estimate of the ACL reflects losses expected over the remaining contractual life of the assets. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR. A loan that has been modified or renewed is considered a TDR when two conditions are met: 1) the borrower is experiencing financial difficulty and 2) concessions are made for the borrower's benefit that would not otherwise be considered for a borrower or transaction with similar credit risk characteristics. The Company’s ACL reflects all effects of a TDR when an individual asset is specifically identified as a reasonably expected TDR. The Company has determined that a TDR is reasonably expected no later than the point when the lender concludes that modification is the best course of action and it is at least reasonably possible that the troubled borrower will accept some form of concession from the lender to avoid a default. Reasonably expected TDRs and executed non-performing TDRs are evaluated individually to determine the required ACL. TDRs performing in accordance with their modified contractual terms for a reasonable period of time may be included in the Company’s existing pools based on the underlying risk characteristics of the loan to measure the ACL. Guidance on Non-TDR Loan Modifications due to COVID-19 Section 4013 of the CARES Act, “Temporary Relief From Troubled Debt Restructurings,” allows financial institutions the option to temporarily suspend certain requirements under U.S. GAAP related to TDRs for a limited period of time during the COVID-19 pandemic. In March 2020, various regulatory agencies, including the FRB and the FDIC, issued an interagency statement, effective immediately, on loan modifications and reporting for financial institutions working with customers affected by COVID-19. The agencies confirmed with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not to be considered TDRs. This includes short-term (e.g., six months) modifications, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. Liability for Off-Balance Sheet Credit Losses Financial instruments include off-balance sheet credit losses, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded.
Derivatives	Derivatives Designated as Hedging Instruments The Company uses derivative instruments to hedge its exposure to economic risks, including interest rate, liquidity, and credit risk. Certain hedging relationships are formally designated and qualify for hedge accounting under GAAP as fair value or cash flow hedges. Fair Value Hedges - Derivatives are designated as fair value hedges to limit the Company's exposure to changes in the fair value of assets or liabilities due to movements in interest rates. The Company entered into pay-fixed receive-floating interest rate swaps to manage its exposure to changes in fair value in certain fixed-rate assets. The gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income.
Fair Value Measurements	Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values: • Level 1 – Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. • Level 2 – Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. • Level 3 – Significant unobservable inputs that reflect a company's own assumptions about the assumptions that market participants would use in pricing an asset or liability. For information regarding the valuation methodologies used to measure our assets recorded at fair value (under ASC Topic 820), and for estimating fair value for financial instruments not recorded at fair value (under ASC Topic 825, as amended by ASU 2016-01 and ASU 2018-03), see Note 1. Nature of Business and Significant Accounting Policies and Note 20. Estimated Fair Value of Financial Instruments and Fair Value Measurements to the consolidated financial statements in the Company's 2019 Annual Report on Form 10-K, filed with the SEC on March 6, 2020. The Company uses fair value to measure certain assets and liabilities on a recurring basis, primarily available for sale and derivatives. For assets measured at the lower of cost or fair value, the fair value measurement criteria may or may not be met during a reporting period and such measurements are therefore considered "nonrecurring" for purposes of disclosing our fair value measurements. Fair value is used on a nonrecurring basis to adjust carrying values for impaired loans and other real estate owned.

Effect of New Financial Accou_2

Effect of New Financial Accounting Standards (Tables)	6 Months Ended
	Jun. 30, 2020
Accounting Standards Update and Change in Accounting Principle [Abstract]
Schedule of Impacts from New Accounting Pronouncements	The following table illustrates the impact of ASC 326 on the allowance for credit losses on loans and the liability for off-balance sheet credit exposures: January 1, 2020 Pre-ASC 326 Adoption Impact of ASC 326 Adoption As Reported Under ASC 326 (in thousands) Assets: Loans Agricultural $ 3,748 $ (2,557) $ 1,191 Commercial and industrial 8,394 2,728 11,122 Commercial real estate 13,804 1,300 15,104 Residential real estate 2,685 2,050 4,735 Consumer 448 463 911 Allowance for credit losses on loans $ 29,079 $ 3,984 $ 33,063 Liabilities: Liability for off-balance sheet credit exposures $ — $ 3,433 $ 3,433

Debt Securities (Tables)

Debt Securities (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Securities [Abstract]
Schedule of Debt Securities, Available-for-sale	The amortized cost and fair value of investment debt securities AFS, with gross unrealized gains and losses, were as follows: As of June 30, 2020 (in thousands) Amortized Gross Gross Allowance for Credit Loss related to Debt Securities Estimated Fair Value U.S. Government agencies and corporations $ 402 $ 8 $ — $ — $ 410 State and political subdivisions 424,935 10,317 1,206 — 434,046 Mortgage-backed securities 77,944 1,742 1 — 79,685 Collateralized mortgage obligations 352,318 8,148 438 — 360,028 Corporate debt securities 305,797 8,387 898 — 313,286 Total debt securities $ 1,161,396 $ 28,602 $ 2,543 $ — $ 1,187,455 As of December 31, 2019 (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value U.S. Government agencies and corporations $ 439 $ 2 $ — $ 441 State and political subdivisions 253,750 3,803 348 257,205 Mortgage-backed securities 43,009 536 15 43,530 Collateralized mortgage obligations 293,911 1,000 1,965 292,946 Corporate debt securities 188,952 3,018 115 191,855 Total debt securities $ 780,061 $ 8,359 $ 2,443 $ 785,977
Schedule of Temporary Impairment Losses	The following table presents debt securities AFS in an unrealized loss position for which an allowance for credit losses has not been recorded at June 30, 2020, aggregated by investment category and length of time in a continuous loss position: As of June 30, 2020 Number of Securities Less than 12 Months 12 Months or More Total Available for Sale Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 63 $ 41,403 $ 1,206 $ — $ — $ 41,403 $ 1,206 Mortgage-backed securities 5 286 1 16 — 302 1 Collateralized mortgage obligations 3 31,044 438 — — 31,044 438 Corporate debt securities 20 42,034 796 4,820 102 46,854 898 Total 91 $ 114,767 $ 2,441 $ 4,836 $ 102 $ 119,603 $ 2,543 The following table presents information pertaining to debt securities with gross unrealized losses as of December 31, 2019, aggregated by investment category and length of time that individual securities have been in a continuous loss position: As of December 31, 2019 Available for Sale Number of Securities Less than 12 Months 12 Months or More Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses (in thousands, except number of securities) State and political subdivisions 47 $ 27,161 $ 322 $ 2,112 $ 26 $ 29,273 $ 348 Mortgage-backed securities 7 963 12 1,365 3 2,328 15 Collateralized mortgage obligations 33 103,395 719 65,604 1,246 168,999 1,965 Corporate debt securities 7 7,012 14 8,788 101 15,800 115 Total 94 $ 138,531 $ 1,067 $ 77,869 $ 1,376 $ 216,400 $ 2,443
Schedule Proceeds and Realized Gains (Losses)	Proceeds and gross realized gains and losses on debt securities available for sale for the three months and six months ended June 30, 2020 and 2019 were as follows: Three Months Ended Six Months Ended (in thousands) June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Proceeds from sales of debt securities available for sale $ — $ 118,134 $ 22,140 $ 125,414 Gross realized gains from sales of debt securities available for sale — 79 155 105 Gross realized losses from sales of debt securities available for sale — (45) (113) (54) Net realized gain from sales of debt securities available for sale $ — $ 34 $ 42 $ 51
Investments Classified by Contractual Maturity Date	The contractual maturity distribution of investment debt securities at June 30, 2020, is shown below. Expected maturities of MBS and CMO may differ from contractual maturities because the mortgages underlying the securities may be called or prepaid without any penalties. Therefore, these securities are not included in the maturity categories in the following summary. Available For Sale (in thousands) Amortized Cost Fair Value Due in one year or less $ 56,816 $ 57,396 Due after one year through five years 250,000 257,274 Due after five years through ten years 206,548 211,367 Due after ten years 217,770 221,705 $ 731,134 $ 747,742 Mortgage-backed securities 77,944 79,685 Collateralized mortgage obligations 352,318 360,028 Total $ 1,161,396 $ 1,187,455

Loans Receivable and the Allo_2

Loans Receivable and the Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Schedule of Loans by Lending Classification	The composition of loans by class of receivable was as follows: As of (in thousands) June 30, 2020 December 31, 2019 Agricultural $ 140,837 $ 140,446 Commercial and industrial 1,084,527 835,236 Commercial real estate: Construction & development 199,950 298,077 Farmland 161,897 181,885 Multifamily 247,403 227,407 Commercial real estate-other 1,155,489 1,107,490 Total commercial real estate 1,764,739 1,814,859 Residential real estate: One- to four- family first liens 377,100 407,418 One- to four- family junior liens 155,814 170,381 Total residential real estate 532,914 577,799 Consumer 74,022 82,926 Loans held for investment, net of unearned income 3,597,039 3,451,266 Allowance for credit losses (55,644) (29,079) Total loans held for investment, net $ 3,541,395 $ 3,422,187
Schedule of Loans Based on Delinquency Status	The following table presents the amortized cost basis of loans based on delinquency status: Age Analysis of Past-Due Financial Assets 90 Days or More Past Due And Accruing (in thousands) Current 30 - 59 Days Past Due 60 - 89 Days Past Due 90 Days or More Past Due Total June 30, 2020 Agricultural $ 138,409 $ 522 $ 351 $ 1,555 $ 140,837 $ — Commercial and industrial 1,078,603 245 1,134 4,545 1,084,527 35 Commercial real estate: Construction and development 194,965 3,663 707 615 199,950 — Farmland 151,530 388 1,221 8,758 161,897 — Multifamily 247,403 — — — 247,403 — Commercial real estate-other 1,147,912 1,432 — 6,145 1,155,489 — Total commercial real estate 1,741,810 5,483 1,928 15,518 1,764,739 — Residential real estate: One- to four- family first liens 368,201 2,142 1,740 5,017 377,100 3,197 One- to four- family junior liens 154,769 552 259 234 155,814 — Total residential real estate 522,970 2,694 1,999 5,251 532,914 3,197 Consumer 73,768 136 13 105 74,022 6 Total $ 3,555,560 $ 9,080 $ 5,425 $ 26,974 $ 3,597,039 $ 3,238 December 31, 2019 Agricultural $ 137,715 $ 975 $ — $ 1,756 $ 140,446 $ — Commercial and industrial 828,842 846 270 5,278 835,236 — Commercial real estate: Construction and development 294,995 2,256 621 205 298,077 — Farmland 175,281 362 — 6,242 181,885 — Multifamily 227,013 394 — — 227,407 — Commercial real estate-other 1,102,504 1,965 347 2,674 1,107,490 — Total commercial real estate 1,799,793 4,977 968 9,121 1,814,859 — Residential real estate: One- to four- family first liens 402,471 2,579 857 1,511 407,418 99 One- to four- family junior liens 169,592 518 108 163 170,381 25 Total residential real estate 572,063 3,097 965 1,674 577,799 124 Consumer 82,558 150 80 138 82,926 12 Total $ 3,420,971 $ 10,045 $ 2,283 $ 17,967 $ 3,451,266 $ 136
Schedule of Amortized Cost Basis on Nonaccrual Status	The following table presents the amortized cost basis of loans on non-accrual status, loans past due 90 days or more and still accruing by class of loan and related interest income recognized: Three Months Ended June 30, Six Months Ended June 30, (in thousands) Beginning of Period Nonaccrual End of Period Nonaccrual Nonaccrual with no Allowance for Credit Losses 90 Days or More Past Due And Accruing Interest Income Recognized on Nonaccrual Interest Income Recognized on Nonaccrual As of and for the Three and Six Months Ended June 30, 2020 Agricultural $ 2,894 $ 3,187 $ 1,611 $ — $ 16 $ 80 Commercial and industrial 13,276 10,041 5,104 35 45 101 Commercial real estate: Construction and development 1,494 879 701 — 6 41 Farmland 10,402 14,178 12,593 — 9 93 Multifamily — — — — — 1 Commercial real estate-other 10,141 9,980 3,099 — 3 24 Total commercial real estate 22,037 25,037 16,393 — 18 159 Residential real estate: One- to four- family first liens 2,557 2,293 207 3,197 33 41 One- to four- family junior liens 513 583 1 — 6 7 Total residential real estate 3,070 2,876 208 3,197 39 48 Consumer 206 162 13 6 6 8 Total $ 41,483 $ 41,303 $ 23,329 $ 3,238 $ 124 $ 396
Schedule of Credit Quality Indicator	The following table sets forth the amortized cost basis of loans by class of receivable by credit quality indicator and vintage based on the most recent analysis performed, as of June 30, 2020. As of June 30, 2020, there were no 'loss' rated credits. Term Loans by Origination Year Revolving Loans June 30, 2020 (in thousands) 2020 2019 2018 2017 2016 Prior Total Agricultural Pass $ 21,013 $ 11,300 $ 4,898 $ 2,906 $ 2,753 $ 3,067 $ 71,689 $ 117,626 Special mention / watch 5,905 1,422 125 113 600 1,253 6,206 15,624 Substandard 1,093 1,282 2 191 131 227 4,661 7,587 Doubtful — — — — — — — — Total $ 28,011 $ 14,004 $ 5,025 $ 3,210 $ 3,484 $ 4,547 $ 82,556 $ 140,837 Commercial and industrial Pass $ 486,629 $ 114,316 $ 70,083 $ 77,159 $ 44,088 $ 114,435 $ 125,003 $ 1,031,713 Special mention / watch 5,018 1,309 1,953 4,243 906 3,356 18,615 35,400 Substandard 3,036 2,569 752 974 624 4,416 5,043 17,414 Doubtful — — — — — — — — Total $ 494,683 $ 118,194 $ 72,788 $ 82,376 $ 45,618 $ 122,207 $ 148,661 $ 1,084,527 CRE - Construction and development Pass $ 50,048 $ 76,696 $ 25,444 $ 8,655 $ 1,932 $ 1,308 $ 26,494 $ 190,577 Special mention / watch 4,159 1,688 775 — 14 34 — 6,670 Substandard 735 1,919 — — — 49 — 2,703 Doubtful — — — — — — — — Total $ 54,942 $ 80,303 $ 26,219 $ 8,655 $ 1,946 $ 1,391 $ 26,494 $ 199,950 CRE - Farmland Pass $ 37,140 $ 32,227 $ 14,315 $ 15,023 $ 10,590 $ 18,171 $ 2,257 $ 129,723 Special mention / watch 2,244 4,584 1,290 1,953 1,237 587 353 12,248 Substandard 2,732 3,632 4,339 1,729 449 6,051 994 19,926 Doubtful — — — — — — — — Total $ 42,116 $ 40,443 $ 19,944 $ 18,705 $ 12,276 $ 24,809 $ 3,604 $ 161,897 CRE - Multifamily Pass $ 109,637 $ 17,948 $ 18,346 $ 37,740 $ 16,722 $ 32,726 $ 12,788 $ 245,907 Special mention / watch 348 — — — 78 — — 426 Substandard 716 354 — — — — — 1,070 Doubtful — — — — — — — — Total $ 110,701 $ 18,302 $ 18,346 $ 37,740 $ 16,800 $ 32,726 $ 12,788 $ 247,403 CRE - other Pass $ 385,335 $ 129,669 $ 84,625 $ 106,504 $ 81,037 $ 147,048 $ 50,888 $ 985,106 Special mention / watch 85,815 24,505 6,821 6,526 4,537 5,671 199 134,074 Substandard 24,446 1,480 6,296 1,246 604 2,101 136 36,309 Doubtful — — — — — — — — Total $ 495,596 $ 155,654 $ 97,742 $ 114,276 $ 86,178 $ 154,820 $ 51,223 $ 1,155,489 RRE - One- to four- family first liens Performing $ 71,419 $ 61,180 $ 52,230 $ 47,208 $ 43,567 $ 85,959 $ 10,046 $ 371,609 Nonperforming 17 67 588 1,092 930 2,797 — 5,491 Total $ 71,436 $ 61,247 $ 52,818 $ 48,300 $ 44,497 $ 88,756 $ 10,046 $ 377,100 RRE - One- to four- family junior liens Performing $ 3,687 $ 12,453 $ 16,629 $ 8,207 $ 4,343 $ 7,568 $ 102,345 $ 155,232 Nonperforming — — — 32 250 229 71 582 Total $ 3,687 $ 12,453 $ 16,629 $ 8,239 $ 4,593 $ 7,797 $ 102,416 $ 155,814 Consumer Performing $ 12,933 $ 19,438 $ 14,079 $ 6,857 $ 3,607 $ 6,203 $ 10,743 $ 73,860 Nonperforming — 38 49 24 14 37 — 162 Total $ 12,933 $ 19,476 $ 14,128 $ 6,881 $ 3,621 $ 6,240 $ 10,743 $ 74,022 Term Loans by Origination Year Revolving Loans 2020 2019 2018 2017 2016 Prior Total Total by Credit Quality Indicator Category Pass $ 1,089,802 $ 382,156 $ 217,711 $ 247,987 $ 157,122 $ 316,755 $ 289,119 $ 2,700,652 Special mention / watch 103,489 33,508 10,964 12,835 7,372 10,901 25,373 204,442 Substandard 32,758 11,236 11,389 4,140 1,808 12,844 10,834 85,009 Doubtful — — — — — — — — Performing 88,039 93,071 82,938 62,272 51,517 99,730 123,134 600,701 Nonperforming 17 105 637 1,148 1,194 3,063 71 6,235 Total $ 1,314,105 $ 520,076 $ 323,639 $ 328,382 $ 219,013 $ 443,293 $ 448,531 $ 3,597,039 The following table sets forth the risk category of loans by class of loans and credit quality indicator used on the most recent analysis performed as of December 31, 2019: 2019 Pass Special Mention / Watch Substandard Doubtful Loss Total Agricultural $ 117,374 $ 13,292 $ 9,780 $ — $ — $ 140,446 Commercial and industrial 794,526 19,038 21,635 1 36 835,236 Commercial real estate: Construction and development 283,921 11,423 2,733 — — 298,077 Farmland 141,107 21,307 19,471 — — 181,885 Multifamily 226,124 90 1,193 — — 227,407 Commercial real estate-other 1,036,418 50,691 20,381 — — 1,107,490 Total commercial real estate 1,687,570 83,511 43,778 — — 1,814,859 Residential real estate: One- to four- family first liens 396,175 4,547 6,532 164 — 407,418 One- to four- family junior liens 168,229 1,282 870 — — 170,381 Total residential real estate 564,404 5,829 7,402 164 — 577,799 Consumer 82,650 39 218 19 — 82,926 Total $ 3,246,524 $ 121,709 $ 82,813 $ 184 $ 36 $ 3,451,266
Schedule of Changes in Allowance for Credit Losses	The changes in the allowance for credit losses by portfolio segment were as follows: For the Three Months Ended June 30, 2020 and 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total For the Three Months June 30, 2020 Beginning balance $ 1,146 $ 19,309 $ 23,138 $ 6,425 $ 1,169 $ 51,187 Charge-offs (109) (902) (792) (103) (197) (2,103) Recoveries 1 166 11 8 50 236 Credit loss expense (1) 370 136 5,864 (256) 210 6,324 Ending balance $ 1,408 $ 18,709 $ 28,221 $ 6,074 $ 1,232 $ 55,644 For the Three Months Ended June 30, 2019 Beginning balance $ 3,691 $ 7,594 $ 14,798 $ 3,272 $ 297 $ 29,652 Charge-offs (16) (1,759) (310) (1) (101) (2,187) Recoveries 2 100 257 8 163 530 Credit loss expense 43 1,698 (1,090) 98 (53) 696 Ending balance $ 3,720 $ 7,633 $ 13,655 $ 3,377 $ 306 $ 28,691 For the Six Months Ended June 30, 2020 and 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total For the Six Months Ended June 30, 2020 Beginning balance, prior to adoption of ASC 326 $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079 Day 1 transition adjustment from adoption of ASC 326 (2,557) 2,728 1,300 2,050 463 3,984 Charge-offs (193) (1,373) (1,512) (103) (419) (3,600) Recoveries 26 379 19 15 96 535 Credit loss expense (1) 384 8,581 14,610 1,427 644 25,646 Ending balance $ 1,408 $ 18,709 $ 28,221 $ 6,074 $ 1,232 $ 55,644 For the Six Months Ended June 30, 2019 Beginning balance $ 3,637 $ 7,478 $ 15,635 $ 2,349 $ 208 $ 29,307 Charge-offs (150) (2,113) (960) (50) (269) (3,542) Recoveries 9 148 265 17 197 636 Credit loss expense 224 2,120 (1,285) 1,061 170 2,290 Ending balance $ 3,720 $ 7,633 $ 13,655 $ 3,377 $ 306 $ 28,691 (1) The difference in the credit loss expense reported herein as compared to the Consolidated Statements of Income is associated with the credit loss expense of $(1.6) million and $772 thousand related to off-balance sheet credit exposures for the three months and six months ended June 30, 2020, respectively. The composition of allowance for credit losses by portfolio segment based on evaluation method were as follows: As of June 30, 2020 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 2,747 $ 8,593 $ 23,714 $ 204 $ 8 $ 35,266 Collectively evaluated for impairment 138,090 1,075,934 1,741,025 532,710 74,014 3,561,773 Total $ 140,837 $ 1,084,527 $ 1,764,739 $ 532,914 $ 74,022 $ 3,597,039 Allowance for credit losses: Individually evaluated for impairment $ 490 $ 1,774 $ 915 $ — $ — $ 3,179 Collectively evaluated for impairment 918 16,935 27,306 6,074 1,232 52,465 Total $ 1,408 $ 18,709 $ 28,221 $ 6,074 $ 1,232 $ 55,644 As of December 31, 2019 (in thousands) Agricultural Commercial and Industrial Commercial Real Estate Residential Real Estate Consumer Total Loans held for investment, net of unearned income Individually evaluated for impairment $ 4,312 $ 12,242 $ 16,082 $ 838 $ 21 $ 33,495 Collectively evaluated for impairment 135,246 822,939 1,781,306 572,865 82,864 3,395,220 Purchased credit impaired loans 888 55 17,471 4,096 41 22,551 Total $ 140,446 $ 835,236 $ 1,814,859 $ 577,799 $ 82,926 $ 3,451,266 Allowance for loan losses: Individually evaluated for impairment $ 212 $ 2,198 $ 1,180 $ 73 $ — $ 3,663 Collectively evaluated for impairment 3,536 6,194 11,836 2,152 448 24,166 Purchased credit impaired loans — 2 788 460 — 1,250 Total $ 3,748 $ 8,394 $ 13,804 $ 2,685 $ 448 $ 29,079
Financing Receivable, Collateral Depend Loans	The following table presents the amortized cost basis of collateral dependent loans, by the primary collateral type, which are individually evaluated to determine expected credit losses, and the related ACL allocated to these loans: As of June 30, 2020 Primary Type of Collateral Real Estate Equipment Other Total ACL Allocation Agricultural $ 124 $ 2,011 $ 612 $ 2,747 $ 490 Commercial and industrial 1,230 4,066 3,297 8,593 1,774 Commercial real estate: Construction and development 700 — — 700 — Farmland 13,646 — — 13,646 283 Multifamily — — — — — Commercial real estate-other 9,368 — — 9,368 632 Residential real estate: One- to four- family first liens 204 — — 204 — One- to four- family junior liens — — — — — Consumer — 8 — 8 — Total $ 25,272 $ 6,085 $ 3,909 $ 35,266 $ 3,179
Schedule of TDRs by Class of Financing Receivable	The following table sets forth information on the Company's TDRs by class of financing receivable occurring during the stated periods. TDRs may include multiple concessions, and the disclosure classifications in the table are based on the primary concession provided to the borrower. Three Months Ended June 30, 2020 2019 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) CONCESSION - Extended maturity date One- to four- family first liens 2 $ 145 $ 145 3 $ 240 $ 239 One- to four- family junior liens — — — 1 25 25 CONCESSION - Other Agricultural 1 208 208 — — — Farmland 2 354 354 — — — Total 5 $ 707 $ 707 4 $ 265 $ 264 Six Months Ended June 30, 2020 2019 Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Number of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment (dollars in thousands) CONCESSION - Extended maturity date Commercial real estate-other 3 $ 759 $ 808 — $ — $ — One- to four- family first liens 2 145 145 3 240 239 One- to four- family junior liens — — — 2 76 76 CONCESSION - Other Agricultural 1 208 208 — — — Farmland 2 354 354 — — — Total 8 $ 1,466 $ 1,515 5 $ 316 $ 315
Schedule of Impaired Receivables	The following table presents loans individually evaluated for impairment by class of receivable, as of December 31, 2019: December 31, 2019 (in thousands) Recorded Investment Unpaid Principal Balance Related Allowance With no related allowance recorded: Agricultural $ 2,383 $ 2,913 $ — Commercial and industrial 7,391 10,875 — Commercial real estate: Construction and development 1,181 1,218 — Farmland 4,306 4,331 — Multifamily — — — Commercial real estate-other 5,709 5,854 — Total commercial real estate 11,196 11,403 — Residential real estate: One- to four- family first liens 577 578 — One- to four- family junior liens — — — Total residential real estate 577 578 — Consumer 21 21 — Total $ 21,568 $ 25,790 $ — With an allowance recorded: Agricultural $ 1,929 $ 1,930 $ 212 Commercial and industrial 4,851 5,417 2,198 Commercial real estate: Construction and development 135 135 135 Farmland 1,109 1,148 347 Multifamily — — — Commercial real estate-other 3,642 4,229 698 Total commercial real estate 4,886 5,512 1,180 Residential real estate: One- to four- family first liens 261 262 73 One- to four- family junior liens — — — Total residential real estate 261 262 73 Consumer — — — Total $ 11,927 $ 13,121 $ 3,663 Total: Agricultural $ 4,312 $ 4,843 $ 212 Commercial and industrial 12,242 16,292 2,198 Commercial real estate: Construction and development 1,316 1,353 135 Farmland 5,415 5,479 347 Multifamily — — — Commercial real estate-other 9,351 10,083 698 Total commercial real estate 16,082 16,915 1,180 Residential real estate: One- to four- family first liens 838 840 73 One- to four- family junior liens — — — Total residential real estate 838 840 73 Consumer 21 21 — Total $ 33,495 $ 38,911 $ 3,663 The following table presents the average recorded investment and interest income recognized for loans individually evaluated for impairment by class of receivable, during the stated period: Three Months Ended June 30, Six Months Ended June 30, 2019 2019 (in thousands) Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized With no related allowance recorded: Agricultural $ 2,632 $ 47 $ 2,227 $ 12 Commercial and industrial 4,347 — 4,610 — Commercial real estate: Construction and development — — — — Farmland 3,001 32 2,011 — Multifamily — — — — Commercial real estate-other 920 10 857 20 Total commercial real estate 3,921 42 2,868 20 Residential real estate: One- to four- family first liens 497 — 332 — One- to four- family junior liens 75 — 50 — Total residential real estate 572 — 382 — Consumer 21 — 14 — Total $ 11,493 $ 89 $ 10,101 $ 32 With an allowance recorded: Agricultural $ 2,363 $ 53 $ 2,279 $ 60 Commercial and industrial 4,271 — 4,042 — Commercial real estate: Construction and development — — — — Farmland 86 5 57 5 Multifamily — — — — Commercial real estate-other 2,044 10 1,931 12 Total commercial real estate 2,130 15 1,988 17 Residential real estate: One- to four- family first liens 526 6 440 8 One- to four- family junior liens — — — — Total residential real estate 526 6 440 8 Consumer — — — — Total $ 9,290 $ 74 $ 8,749 $ 85 Total: Agricultural $ 4,995 $ 100 $ 4,506 $ 72 Commercial and industrial 8,618 — 8,652 — Commercial real estate: Construction and development — — — — Farmland 3,087 37 2,068 5 Multifamily — — — — Commercial real estate-other 2,964 20 2,788 32 Total commercial real estate 6,051 57 4,856 37 Residential real estate: One- to four- family first liens 1,023 6 772 8 One- to four- family junior liens 75 — 50 — Total residential real estate 1,098 6 822 8 Consumer 21 — 14 — Total $ 20,783 $ 163 $ 18,850 $ 117
Schedule of PCD Loans	The following table summarizes the outstanding balance and carrying amount of our PCI loans that were identified prior to the adoption of ASC 326: December 31, 2019 (in thousands) Agricultural $ 904 Commercial and industrial 147 Commercial real estate 17,803 Residential real estate 4,136 Consumer 57 Outstanding balance 23,047 Carrying amount 22,551 Allowance for credit losses 1,250 Carrying amount, net of allowance for credit losses $ 21,301

Derivatives, Hedging Activiti_2

Derivatives, Hedging Activities and Balance Sheet Offsetting (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table presents the total notional amounts and gross fair values of the Company’s derivatives as of the dates indicated. The derivative asset and liability balances are presented on a gross basis, prior to the application of master netting agreements, as included in other assets and other liabilities, respectively, on the consolidated balance sheets. The fair values of the Company's derivative instrument assets and liabilities are summarized as follows: As of June 30, 2020 As of December 31, 2019 Notional Amount Fair Value Notional Amount Fair Value (in thousands) Assets Liabilities Assets Liabilities Designated as hedging instruments Fair value hedges Interest rate swaps $ 25,927 $ — $ 3,106 $ 16,734 $ — $ 1,113 Cash flow hedges Interest rate swaps 30,000 — 960 — — — Total $ 55,927 $ — $ 4,066 $ 16,734 $ — $ 1,113 Not designated as hedging instruments: Interest rate swaps $ 340,444 $ 14,388 $ 14,440 $ 113,632 $ 1,824 $ 1,999 RPAs - protection sold 4,589 3 — 4,702 24 — RPAs - protection purchased 9,920 — 11 10,009 — 130 Total $ 354,953 $ 14,391 $ 14,451 $ 128,343 $ 1,848 $ 2,129
Schedule of Derivatives Instrument Impacts on Statements	The table below presents the effect of cash flow hedge accounting on AOCI for three months and six months ended June 30, 2020 and 2019. Amount of Gain (Loss) Recognized in AOCI on Derivative Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Three Months Ended June 30, Three Months Ended June 30, (in thousands) 2020 2019 2020 2019 Interest rate swaps $ (129) $ — Interest Expense $ (62) $ — Amount of Gain (Loss) Recognized in AOCI on Derivative Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Six Months Ended June 30, Six Months Ended June 30, (in thousands) 2020 2019 2020 2019 Interest rate swaps $ (1,017) $ — Interest Expense $ (57) $ — The table below presents the effect of the Company’s derivative financial instruments designated as hedging instruments on the consolidated statements of income for the periods indicated: Location and Amount of Gain or Loss Recognized in Income on Fair Value and Cash Flow Hedging Relationships For the Three Months Ended June 30, For the Six Months Ended June 30, 2020 2019 2020 2019 (in thousands) Interest Income Interest Expense Interest Income Interest Expense Interest Income Interest Expense Interest Income Interest Expense Total amounts of income and expense line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded $ (80) $ — $ — $ — $ (127) $ — $ (1) $ — The effects of fair value and cash flow hedging: Gain (loss) on fair value hedging relationships in subtopic 815-20: Interest contracts: Hedged items 237 — 491 — 1,988 — 795 — Derivative designated as hedging instruments (232) — (491) — (1,993) — (796) — Income statement effect of cash flow hedging relationships in subtopic 815-20: Interest contracts: Amount reclassified from AOCI into income — 62 — — — 57 — —
Hedged Items In Fair Value Hedging Relationship	As of June 30, 2020, the following amounts were recorded on the balance sheet related to cumulative basis adjustment for fair value hedges: Line Item in the Balance Sheet in Which the Hedged Item is Included Carrying Amount of the Hedged Assets Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset (in thousands) Loans $ 29,035 $ 3,099
Derivatives Not Designated as Hedging Instruments	The following table presents the net gains (losses) recognized on the consolidated statements of income related to the derivatives not designated as hedging instruments for the periods indicated: Location in the Consolidated Statements of Income For the Three Months Ended June 30, For the Six Months Ended June 30, (in thousands) 2020 2019 2020 2019 Interest rate swaps Other income $ (18) $ (108) $ 123 $ (130) RPAs Other income (6) (107) 97 (124) Total $ (24) $ (215) $ 220 $ (254)
Offsetting Derivative Assets And Liabilities	Offsetting of Derivatives The Company has entered into agreements with certain counterparty financial institutions, which include master netting agreements. However, the Company has elected to account for all derivatives with counterparty institutions on a gross basis. The Company manages the risk of default by its borrower counterparties through its normal loan underwriting and credit monitoring policies and procedures. The following table below presents gross derivatives and the respective collateral received or pledged in the form of other financial instruments as of June 30, 2020 and December 31, 2019, which are generally marketable securities and/or cash. The collateral amounts in the table below are limited to the outstanding balances of the related asset or liability (after netting is applied); thus instances of overcollateralization are not shown. Further, the net amounts of derivative assets or liabilities can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets and liabilities are presented on the consolidated balance sheets. Gross Amounts Not Offset in the Balance Sheet (in thousands) Gross Amounts of Recognized Assets (Liabilities) Gross Amounts Offset in the Balance Sheet Net Amounts of Assets (Liabilities) presented in the Balance Sheet Financial Instruments Cash Collateral Pledged Net Assets (Liabilities) As of June 30, 2020 Asset Derivatives $ 14,391 $ — $ 14,391 $ — $ — $ 14,391 Liability Derivatives (18,517) — (18,517) — (18,517) — As of December 31, 2019 Asset Derivatives $ 1,848 $ — $ 1,848 $ — $ — $ 1,848 Liability Derivatives (3,242) — (3,242) — (3,242) —

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table presents the changes in the carrying amount of goodwill for the periods indicated: Six Months Ended June 30, (in thousands) 2020 Goodwill, beginning of period $ 91,918 Fair value adjustment 2,059 Total goodwill, end of period $ 93,977
Schedule of Finite-Lived Intangible Assets	The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets at the dates indicated: As of June 30, 2020 As of December 31, 2019 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 41,745 $ (23,932) $ 17,813 $ 41,745 $ (21,032) $ 20,713 Customer relationship intangible 5,265 (2,000) 3,265 5,265 (1,195) 4,070 Other 2,700 (2,375) 325 2,700 (2,305) 395 $ 49,710 $ (28,307) $ 21,403 $ 49,710 $ (24,532) $ 25,178 Indefinite-lived trade name intangible $ 7,040 $ 7,040
Schedule of Indefinite-Lived Intangible Assets	The following table presents the gross carrying amount, accumulated amortization, and net carrying amount of other intangible assets at the dates indicated: As of June 30, 2020 As of December 31, 2019 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangible $ 41,745 $ (23,932) $ 17,813 $ 41,745 $ (21,032) $ 20,713 Customer relationship intangible 5,265 (2,000) 3,265 5,265 (1,195) 4,070 Other 2,700 (2,375) 325 2,700 (2,305) 395 $ 49,710 $ (28,307) $ 21,403 $ 49,710 $ (24,532) $ 25,178 Indefinite-lived trade name intangible $ 7,040 $ 7,040
Schedule of Future Amortization Expense	The following table provides the estimate future amortization expense for the remaining six months ending December 31, 2020 and the succeeding periods: Core Deposit Intangible Customer Relationship Intangible Other Total Estimated Amortization Expense for the Year Ending December 31, 2020 $ 2,507 $ 630 $ 63 $ 3,200 2021 4,190 1,062 106 5,358 2022 3,487 797 79 4,363 2023 2,833 518 51 3,402 2024 2,180 239 24 2,443 Thereafter 2,616 19 2 2,637 Total $ 17,813 $ 3,265 $ 325 $ 21,403

Other Assets (Tables)

Other Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Other Assets [Abstract]
Schedule of Other Assets	The components of the Company's other assets as of June 30, 2020 and December 31, 2019 were as follows: (in thousands) June 30, 2020 December 31, 2019 Bank-owned life insurance $ 82,411 $ 81,625 Interest receivable 21,082 18,525 FHLB stock 12,858 15,381 Mortgage servicing rights 5,833 7,026 Operating lease ROU assets, net 4,067 4,499 Federal & state taxes, current — 2,318 Federal & state taxes, deferred 7,435 3,530 Derivative assets 14,391 1,848 Other receivables/assets 12,464 13,208 $ 160,541 $ 147,960

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2020
Deposits [Abstract]
Deposit Liabilities	The following table presents the composition of our deposits as of the dates indicated: (in thousands) As of June 30, 2020 As of December 31, 2019 Noninterest bearing deposits $ 867,637 $ 662,209 Interest checking deposits 1,153,697 962,830 Money market deposits 811,368 763,028 Savings deposits 463,262 387,142 Time deposits under $250,000 656,723 682,232 Time deposits of $250,000 or more 312,748 271,214 Total deposits $ 4,265,435 $ 3,728,655

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	6 Months Ended
	Jun. 30, 2020
Short-term Debt [Abstract]
Schedule of Short-term borrowings	The following table summarizes our short-term borrowings as of the dates indicated: June 30, 2020 December 31, 2019 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Securities sold under agreements to repurchase 0.41 % $ 152,224 1.06 % $ 117,249 Federal Home Loan Bank advances — — 1.73 22,100 Unsecured line of credit 1.94 10,000 — — Total 0.51 % $ 162,224 1.17 % $ 139,349

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of long-term debt	The table below summarizes the terms of each issuance of junior subordinated notes outstanding as of the dates indicated: (in thousands) Face Value Book Value Interest Rate Rate Maturity Date Callable Date June 30, 2020 ATBancorp Statutory Trust I $ 7,732 $ 6,832 Three-month LIBOR + 1.68% 1.99 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,821 Three-month LIBOR + 1.65% 1.96 % 06/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,750 Three-month LIBOR + 2.15% 2.46 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,808 Three-month LIBOR + 3.50% 3.81 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 1.90 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,675 December 31, 2019 ATBancorp Statutory Trust I $ 7,732 $ 6,814 Three-month LIBOR + 1.68% 3.57 % 06/15/2036 06/15/2011 ATBancorp Statutory Trust II 12,372 10,794 Three-month LIBOR + 1.65% 3.54 % 09/15/2037 06/15/2012 Barron Investment Capital Trust I 2,062 1,732 Three-month LIBOR + 2.15% 4.08 % 09/23/2036 09/23/2011 Central Bancshares Capital Trust II 7,217 6,783 Three-month LIBOR + 3.50% 5.39 % 03/15/2038 03/15/2013 MidWestOne Statutory Trust II 15,464 15,464 Three-month LIBOR + 1.59% 3.48 % 12/15/2037 12/15/2012 Total $ 44,847 $ 41,587 Long-term borrowings were as follows as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (in thousands) Weighted Average Rate Balance Weighted Average Rate Balance Finance lease payable 8.89 % $ 1,162 8.89 % $ 1,224 FHLB borrowings 1.92 108,246 2.25 145,700 Notes payable to unaffiliated bank 1.93 28,000 3.44 32,250 Total 1.98 % $ 137,408 2.51 % $ 179,174

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	Income tax expense for the three months and six months ended June 30, 2020 and 2019 varied from the amount computed by applying the maximum effective federal income tax rate of 21%, to the income before income taxes, because of the following items: For the Three Months Ended June 30, For the Six Months Ended June 30, 2020 2019 2020 2019 (in thousands) Amount % of Pretax Income Amount % of Pretax Income Amount % of Pretax Income Amount % of Pretax Income Income tax based on statutory rate $ 2,994 21.0 % $ 2,917 21.0 % $ 2,118 21.0 % $ 4,844 21.0 % Tax-exempt interest (703) (4.9) (472) (3.4) (1,346) (13.3) (940) (4.1) Bank-owned life insurance (133) (0.9) (99) (0.7) (242) (2.4) (181) (0.8) State income taxes, net of federal income tax benefit 736 5.2 744 5.4 545 5.4 1,231 5.3 Non-deductible acquisition expenses — — 136 1.0 — — 162 0.7 General business credits (388) (2.7) (14) (0.1) (771) (7.6) (28) (0.1) Other 40 0.2 6 — 44 0.4 20 0.1 Total income tax expense $ 2,546 17.9 % $ 3,218 23.2 % $ 348 3.5 % $ 5,108 22.1 %

Earnings per Share (Tables)

Earnings per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, (dollars in thousands, except per share amounts) 2020 2019 2020 2019 Basic Earnings Per Share: Net income $ 11,712 $ 10,674 $ 9,737 $ 17,959 Weighted average shares outstanding 16,094,084 14,893,854 16,117,792 13,536,646 Basic earnings per common share $ 0.73 $ 0.72 $ 0.60 $ 1.33 Diluted Earnings Per Share: Net income 11,712 $ 10,674 $ 9,737 $ 17,959 Weighted average shares outstanding, including all dilutive potential shares 16,099,682 14,900,057 16,125,375 13,545,290 Diluted earnings per common share $ 0.73 $ 0.72 $ 0.60 $ 1.33

Regulatory Capital Requiremen_2

Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Tables)	6 Months Ended
	Jun. 30, 2020
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	A comparison of the Company's and the Bank's capital with the corresponding minimum regulatory requirements in effect as of June 30, 2020 and December 31, 2019, is presented below: Actual For Capital Adequacy Purposes With Capital Conservation Buffer(1) To Be Well Capitalized Under Prompt Corrective Action Provisions (dollars in thousands) Amount Ratio Amount Ratio Amount Ratio At June 30, 2020 Consolidated: Total capital/risk weighted assets $485,309 11.72% $434,970 10.50% N/A N/A Tier 1 capital/risk weighted assets 434,207 10.48 352,118 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 392,532 9.48 289,980 7.00 N/A N/A Tier 1 leverage capital/average assets 434,207 8.72 199,225 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $513,922 12.47% $432,647 10.50% $412,045 10.00% Tier 1 capital/risk weighted assets 467,154 11.34 350,238 8.50 329,636 8.00 Common equity tier 1 capital/risk weighted assets 467,154 11.34 288,431 7.00 267,829 6.50 Tier 1 leverage capital/average assets 467,154 9.39 198,967 4.00 248,709 5.00 At December 31, 2019 Consolidated: Total capital/risk weighted assets $463,601 11.34% $429,077 10.50% N/A N/A Tier 1 capital/risk weighted assets 428,021 10.47 347,348 8.50 N/A N/A Common equity tier 1 capital/risk weighted assets 386,434 9.46 286,051 7.00 N/A N/A Tier 1 leverage capital/average assets 428,021 9.48 180,529 4.00 N/A N/A MidWest One Bank: Total capital/risk weighted assets $482,106 11.83% $427,877 10.50% $407,502 10.00% Tier 1 capital/risk weighted assets 453,027 11.12 346,377 8.50 326,002 8.00 Common equity tier 1 capital/risk weighted assets 453,027 11.12 285,251 7.00 264,876 6.50 Tier 1 leverage capital/average assets 453,027 10.06 180,209 4.00 231,166 5.00 (1) Includes a capital conservation buffer of 2.50% at June 30, 2020 and December 31, 2019.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Commitments	The Bank uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments. The following table summarizes the Bank's commitments as of the dates indicated: June 30, 2020 December 31, 2019 (in thousands) Commitments to extend credit $ 892,199 $ 859,212 Commitments to sell loans 12,048 5,400 Standby letters of credit 30,809 36,192 Total $ 935,056 $ 900,804

Fair Value of Financial Instr_2

Fair Value of Financial Instruments and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measured on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis comprise the following as of the dates indicated: Fair Value Measurement at June 30, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Available for sale debt securities: U.S. Government agencies and corporations $ 410 $ — $ 410 $ — State and political subdivisions 434,046 — 434,046 — Mortgage-backed securities 79,685 — 79,685 — Collateralized mortgage obligations 360,028 — 360,028 — Corporate debt securities 313,286 — 313,286 — Derivative assets 14,391 — 14,391 — Liabilities: Derivative liabilities $ 18,517 $ — $ 18,517 $ — Fair Value Measurement at December 31, 2019 Using (in thousands) Total Level 1 Level 2 Level 3 Assets: Debt securities available for sale: U.S. Government agencies and corporations $ 441 $ — $ 441 $ — State and political subdivisions 257,205 — 257,205 — Mortgage-backed securities 43,530 — 43,530 — Collateralized mortgage obligations 292,946 — 292,946 — Corporate debt securities 191,855 — 191,855 — Derivative assets 1,848 — 1,848 — Liabilities: Derivative liabilities $ 3,242 $ — $ 3,242 $ —
Schedule of Fair Value Measured on Nonrecurring Basis	The following tables present assets measured at fair value on a nonrecurring basis as of the dates indicated: Fair Value Measurement at June 30, 2020 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent impaired loans $ 8,798 $ — $ — $ 8,798 Foreclosed assets, net 965 — — 965 Fair Value Measurement at December 31, 2019 Using (in thousands) Total Level 1 Level 2 Level 3 Collateral dependent impaired loans $ 6,749 $ — $ — $ 6,749 Foreclosed assets, net 3,706 — — 3,706
Schedule of Valuation Techniques	The following table presents the valuation technique(s), unobservable inputs, and quantitative information about the unobservable inputs used for fair value measurements of the financial instruments held by the Company and categorized within Level 3 of the fair value hierarchy as of the date indicated: Fair Value at (dollars in thousands) June 30, 2020 December 31, 2019 Valuation Techniques(s) Unobservable Input Range of Inputs Weighted Average Collateral dependent impaired loans $ 8,798 $ 6,749 Fair value of collateral Valuation adjustments — % - 90 % 31 % Foreclosed assets, net $ 965 3,706 Fair value of collateral Valuation adjustments 8 % - 47 % 27 %
Fair Value, by Balance Sheet Grouping	The carrying amount and estimated fair value of financial instruments at June 30, 2020 and December 31, 2019 were as follows: June 30, 2020 (in thousands) Carrying Estimated Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 117,210 $ 117,210 $ 117,210 $ — $ — Debt securities available for sale 1,187,455 1,187,455 — 1,187,455 — Loans held for sale 12,048 12,401 — 12,401 — Loans held for investment, net 3,541,395 3,597,325 — — 3,597,325 Interest receivable 21,082 21,082 — 21,082 — Federal Home Loan Bank stock 12,858 12,858 — 12,858 — Derivative assets 14,391 14,391 — 14,391 — Financial liabilities: Non-interest bearing deposits 867,637 867,637 867,637 — — Interest-bearing deposits 3,397,798 3,405,414 2,428,327 977,087 — Short-term borrowings 162,224 162,224 162,224 — — Finance leases payable 1,162 1,162 — 1,162 — Federal Home Loan Bank borrowings 108,246 111,902 — 111,902 — Junior subordinated notes issued to capital trusts 41,675 34,546 — 34,546 — Subordinated debentures 10,890 11,123 — 11,123 — Other long-term debt 28,000 28,000 — 28,000 — Derivative liabilities 18,517 18,517 — 18,517 — December 31, 2019 (in thousands) Carrying Amount Estimated Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 73,484 $ 73,484 $ 73,484 $ — $ — Debt securities available for sale 785,977 785,977 — 785,977 — Loans held for sale 5,400 5,476 — 5,476 — Loans held for investment, net 3,422,187 3,427,952 — — 3,427,952 Interest receivable 18,525 18,525 — 18,525 — Federal Home Loan Bank stock 15,381 15,381 — 15,381 — Derivative assets 1,848 1,848 — 1,848 — Financial liabilities: Non-interest bearing deposits 662,209 662,209 662,209 — — Interest-bearing deposits 3,066,446 3,066,427 2,113,000 953,427 — Short-term borrowings 139,349 139,349 139,349 — — Finance leases payable 1,224 1,224 — 1,224 — Federal Home Loan Bank borrowings 145,700 146,913 — 146,913 — Junior subordinated notes issued to capital trusts 41,587 39,391 — 39,391 — Subordinated debentures 10,899 11,083 — 11,083 — Other long-term debt 32,250 32,250 — 32,250 — Derivative liabilities 3,242 3,242 — 3,242 —

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Schedule of Lease Assets and Liabilities	Supplemental balance sheet information related to leases was as follows: (in thousands) Classification June 30, 2020 December 31, 2019 Lease Right-of-Use Assets Operating lease right-of-use assets Other assets $ 4,067 $ 4,499 Finance lease right-of-use asset Premises and equipment, net 589 637 Total right-of-use assets $ 4,656 $ 5,136 Lease Liabilities Operating lease liability Other liabilities $ 5,036 $ 5,430 Finance lease liability Long-term debt 1,162 1,224 Total lease liabilities $ 6,198 $ 6,654 Weighted-average remaining lease term Operating leases 8.22 years 8.90 years Finance lease 6.17 years 6.67 years Weighted-average discount rate Operating leases 3.58 % 3.78 % Finance lease 8.89 % 8.89 %
Lease Costs and Other Information	The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance and utilities. Three Months Ended Six Months Ended June 30, June 30, (in thousands) 2020 2019 2020 2019 Lease Costs Operating lease cost $ 409 $ 257 $ 728 $ 450 Variable lease cost 109 13 147 40 Short-term lease cost — — — — Interest on lease liabilities (1) 26 28 52 57 Amortization of right-of-use assets 24 24 48 48 Net lease cost $ 568 $ 322 $ 975 $ 595 Other Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 651 $ 455 $ 1,154 $ 838 Operating cash flows from finance lease 26 41 52 83 Finance cash flows from finance lease 31 28 62 55 Right-of-use assets obtained in exchange for new operating lease liabilities 94 1,599 94 1,599 Right-of-use assets obtained in exchange for new finance lease liabilities — — — — (1) Included in long-term debt interest expense in the Company’s consolidated statements of income. All other lease costs in this table are included in occupancy expense of premises, net.
Schedule of Finance Lease Liability Maturity	Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of June 30, 2020 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2020 $ 116 $ 554 December 31, 2021 235 1,093 December 31, 2022 240 993 December 31, 2023 245 932 December 31, 2024 250 702 Thereafter 426 2,138 Total undiscounted lease payment $ 1,512 $ 6,412 Amounts representing interest (350) (1,376) Lease liability $ 1,162 $ 5,036
Schedule of Operating Lease Liability Maturity	Future minimum payments for finance leases and operating leases with initial or remaining terms of one year or more as of June 30, 2020 were as follows: (in thousands) Finance Leases Operating Leases Twelve Months Ended: December 31, 2020 $ 116 $ 554 December 31, 2021 235 1,093 December 31, 2022 240 993 December 31, 2023 245 932 December 31, 2024 250 702 Thereafter 426 2,138 Total undiscounted lease payment $ 1,512 $ 6,412 Amounts representing interest (350) (1,376) Lease liability $ 1,162 $ 5,036

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) $ in Millions	Jul. 28, 2020USD ($)	May 01, 2019USD ($)shares	Jun. 30, 2020segment	Jun. 30, 2019USD ($)
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of operating segments | segment			1
Subordinated debt
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Interest rate			6.50%
Subsequent event | Subordinated debt | 5.75% Fixed to floating subordinated notes
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Interest rate	5.75%
Subsequent event | Subordinated debt | 5.75% Fixed to floating subordinated notes | Private placement
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Sale of equity	$ 65
MidWestOne Insurance Services Inc
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Gain on disposition of business				$ 1.1
ATBancorp
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of shares issued (in shares) | shares		4,117,536
Value of equity interest issued		$ 116
Cash consideration		$ 34.8

Effect of New Financial Accou_3

Effect of New Financial Accounting Standards (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Jun. 30, 2020	Dec. 31, 2019	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings		$ 198,382	$ 201,105
Allowance for credit losses on loans	$ 29,079	55,644	29,079	$ 51,187	$ 28,691	$ 29,652	$ 29,307
Liability for off-balance sheet credit exposures	0	4,200
Federal & state taxes, deferred		$ 7,435	3,530
PCD assets			$ 22,551
Accounting standards update		us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201613Member
Agricultural
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	3,748	$ 1,408	$ 3,748	1,146	3,720	3,691	3,637
Commercial and industrial
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	8,394	18,709	8,394	19,309	7,633	7,594	7,478
Commercial real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	13,804	28,221	13,804	23,138	13,655	14,798	15,635
Residential real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	2,685	6,074	2,685	6,425	3,377	3,272	2,349
Consumer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	448	$ 1,232	448	1,169	$ 306	$ 297	$ 208
Impact of ASC 326 Adoption
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	(5,400)
Allowance for credit losses on loans	3,984		3,984
Liability for off-balance sheet credit exposures	3,433
Federal & state taxes, deferred	1,900
PCD assets	(119)
Impact of ASC 326 Adoption | Agricultural
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans			(2,557)	(2,557)
Impact of ASC 326 Adoption | Commercial and industrial
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans			2,728	2,728
Impact of ASC 326 Adoption | Commercial real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans			1,300	1,300
Impact of ASC 326 Adoption | Residential real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans			2,050	2,050
Impact of ASC 326 Adoption | Consumer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans			$ 463	$ 463
As Reported Under ASC 326
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	33,063
Liability for off-balance sheet credit exposures	3,433
As Reported Under ASC 326 | Agricultural
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	1,191
As Reported Under ASC 326 | Commercial and industrial
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	11,122
As Reported Under ASC 326 | Commercial real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	15,104
As Reported Under ASC 326 | Residential real estate
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	4,735
As Reported Under ASC 326 | Consumer
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses on loans	$ 911

Debt Securities - Schedule of A

Debt Securities - Schedule of Available for Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities
Amortized Cost	$ 1,161,396	$ 780,061
Gross Unrealized Gains	28,602	8,359
Gross Unrealized Losses	2,543	2,443
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale at fair value	1,187,455	785,977
U.S. Government agencies and corporations
Schedule of Available-for-sale Securities
Amortized Cost	402	439
Gross Unrealized Gains	8	2
Gross Unrealized Losses	0	0
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale at fair value	410	441
State and political subdivisions
Schedule of Available-for-sale Securities
Amortized Cost	424,935	253,750
Gross Unrealized Gains	10,317	3,803
Gross Unrealized Losses	1,206	348
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale at fair value	434,046	257,205
Mortgage-backed securities
Schedule of Available-for-sale Securities
Amortized Cost	77,944	43,009
Gross Unrealized Gains	1,742	536
Gross Unrealized Losses	1	15
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale at fair value	79,685	43,530
Collateralized mortgage obligations
Schedule of Available-for-sale Securities
Amortized Cost	352,318	293,911
Gross Unrealized Gains	8,148	1,000
Gross Unrealized Losses	438	1,965
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale at fair value	360,028	292,946
Corporate debt securities
Schedule of Available-for-sale Securities
Amortized Cost	305,797	188,952
Gross Unrealized Gains	8,387	3,018
Gross Unrealized Losses	898	115
Allowance for Credit Loss related to Debt Securities	0
Debt securities available for sale at fair value	$ 313,286	$ 191,855

Debt Securities - Additional In

Debt Securities - Additional Information (Details) $ in Thousands	Jun. 30, 2020USD ($)security	Dec. 31, 2019USD ($)security
Schedule of Available-for-sale Securities
Pledged securities	$ 377,800	$ 264,800
Securities in continuous unrealized loss position | security	91	94
Accumulated unrealized losses	$ 2,543	$ 2,443
Interest receivable	$ 21,082	$ 18,525
State and political subdivisions
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	63	47
Accumulated unrealized losses	$ 1,206	$ 348
Mortgage-backed securities
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	5	7
Accumulated unrealized losses	$ 1	$ 15
Collateralized mortgage obligations
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	3	33
Accumulated unrealized losses	$ 438	$ 1,965
Corporate debt securities
Schedule of Available-for-sale Securities
Securities in continuous unrealized loss position | security	20	7
Accumulated unrealized losses	$ 898	$ 115
Debt securities
Schedule of Available-for-sale Securities
Interest receivable	$ 5,600

Debt Securities - Available for

Debt Securities - Available for Sale Securities in Continuous Loss Position (Details) $ in Thousands	Jun. 30, 2020USD ($)security	Dec. 31, 2019USD ($)security
Schedule of Available-for-sale Securities
Number of Securities | security	91	94
Less than 12 months, fair value	$ 114,767	$ 138,531
Less than 12 months, unrealized losses	2,441	1,067
12 Months or more, fair value	4,836	77,869
12 Months or more, unrealized loss	102	1,376
Fair Value	119,603	216,400
Unrealized Losses	$ 2,543	$ 2,443
State and political subdivisions
Schedule of Available-for-sale Securities
Number of Securities | security	63	47
Less than 12 months, fair value	$ 41,403	$ 27,161
Less than 12 months, unrealized losses	1,206	322
12 Months or more, fair value		2,112
12 Months or more, unrealized loss	0	26
Fair Value	41,403	29,273
Unrealized Losses	$ 1,206	$ 348
Mortgage-backed securities
Schedule of Available-for-sale Securities
Number of Securities | security	5	7
Less than 12 months, fair value	$ 286	$ 963
Less than 12 months, unrealized losses	1	12
12 Months or more, fair value	16	1,365
12 Months or more, unrealized loss	0	3
Fair Value	302	2,328
Unrealized Losses	$ 1	$ 15
Collateralized mortgage obligations
Schedule of Available-for-sale Securities
Number of Securities | security	3	33
Less than 12 months, fair value	$ 31,044	$ 103,395
Less than 12 months, unrealized losses	438	719
12 Months or more, fair value		65,604
12 Months or more, unrealized loss	0	1,246
Fair Value	31,044	168,999
Unrealized Losses	$ 438	$ 1,965
Corporate debt securities
Schedule of Available-for-sale Securities
Number of Securities | security	20	7
Less than 12 months, fair value	$ 42,034	$ 7,012
Less than 12 months, unrealized losses	796	14
12 Months or more, fair value	4,820	8,788
12 Months or more, unrealized loss	102	101
Fair Value	46,854	15,800
Unrealized Losses	$ 898	$ 115

Debt Securities - Proceeds and

Debt Securities - Proceeds and Gross Realized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Debt Securities [Abstract]
Proceeds from sales of debt securities available for sale	$ 0	$ 118,134	$ 22,140	$ 125,414
Gross realized gains from sales of debt securities available for sale	0	79	155	105
Gross realized losses from sales of debt securities available for sale	0	(45)	(113)	(54)
Net realized gain from sales of debt securities available for sale	$ 0	$ 34	$ 42	$ 51

Debt Securities - Investments C

Debt Securities - Investments Classified by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less, amortized cost	$ 56,816
Due after one year through five years, amortized cost	250,000
Due after five years through ten years, amortized cost	206,548
Due after ten years, amortized cost	217,770
Total maturing securities, amortized cost	731,134
Amortized Cost	1,161,396	$ 780,061
Fair Value
Due in one year or less, estimated fair value	57,396
Due after one year through five years, estimated fair value	257,274
Due after five years through ten years, estimated fair value	211,367
Due after ten years, estimated fair value	221,705
Total maturing securities, fair value	747,742
Debt securities available for sale at fair value	1,187,455	785,977
Mortgage-backed securities
Amortized Cost
Amortized Cost	77,944	43,009
Fair Value
Debt securities available for sale at fair value	79,685	43,530
Collateralized mortgage obligations
Amortized Cost
Amortized Cost	352,318	293,911
Fair Value
Debt securities available for sale at fair value	$ 360,028	$ 292,946

Loans Receivable and the Allo_3

Loans Receivable and the Allowance for Credit Losses - Composition of Loans by Lending Classification (Details) - USD ($)	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 3,597,039,000			$ 3,451,266,000
Allowance for credit losses	(55,644,000)	$ (51,187,000)	$ (29,079,000)	(29,079,000)	$ (28,691,000)	$ (29,652,000)	$ (29,307,000)
Total loans held for investment, net	3,541,395,000			3,422,187,000
Loans pledged for Federal Home Loan Bank debt	889,300,000			945,900,000
Loans and leases receivable, impaired, commitment to lend	0
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	140,837,000			140,446,000
Allowance for credit losses	(1,408,000)	(1,146,000)	(3,748,000)	(3,748,000)	(3,720,000)	(3,691,000)	(3,637,000)
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,084,527,000			835,236,000
Allowance for credit losses	(18,709,000)	(19,309,000)	(8,394,000)	(8,394,000)	(7,633,000)	(7,594,000)	(7,478,000)
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,764,739,000			1,814,859,000
Allowance for credit losses	(28,221,000)	(23,138,000)	(13,804,000)	(13,804,000)	(13,655,000)	(14,798,000)	(15,635,000)
Commercial real estate | Construction & development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	199,950,000			298,077,000
Commercial real estate | Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	161,897,000			181,885,000
Commercial real estate | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	247,403,000			227,407,000
Commercial real estate | Commercial real estate-other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,155,489,000			1,107,490,000
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	532,914,000			577,799,000
Allowance for credit losses	(6,074,000)	(6,425,000)	(2,685,000)	(2,685,000)	(3,377,000)	(3,272,000)	(2,349,000)
Residential real estate | One- to four- family first liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	377,100,000			407,418,000
Residential real estate | One- to four- family junior liens
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	155,814,000			170,381,000
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	74,022,000			82,926,000
Allowance for credit losses	$ (1,232,000)	$ (1,169,000)	$ (448,000)	$ (448,000)	$ (306,000)	$ (297,000)	$ (208,000)

Loans Receivable and the Allo_4

Loans Receivable and the Allowance for Credit Losses - Amortized Cost Basis Based on Delinquency Status (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due
Loans current	$ 3,555,560	$ 3,420,971
Loans held for investment, net of unearned income	3,597,039	3,451,266
90 Days or More Past Due And Accruing	3,238	136
30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	9,080	10,045
60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	5,425	2,283
90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	26,974	17,967
Agricultural
Financing Receivable, Recorded Investment, Past Due
Loans current	138,409	137,715
Loans held for investment, net of unearned income	140,837	140,446
90 Days or More Past Due And Accruing	0	0
Agricultural | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	522	975
Agricultural | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	351	0
Agricultural | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,555	1,756
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due
Loans current	1,078,603	828,842
Loans held for investment, net of unearned income	1,084,527	835,236
90 Days or More Past Due And Accruing	35	0
Commercial and industrial | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	245	846
Commercial and industrial | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,134	270
Commercial and industrial | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	4,545	5,278
Commercial real estate
Financing Receivable, Recorded Investment, Past Due
Loans current	1,741,810	1,799,793
Loans held for investment, net of unearned income	1,764,739	1,814,859
90 Days or More Past Due And Accruing	0	0
Commercial real estate | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	5,483	4,977
Commercial real estate | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,928	968
Commercial real estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	15,518	9,121
Commercial real estate | Construction & development
Financing Receivable, Recorded Investment, Past Due
Loans current	194,965	294,995
Loans held for investment, net of unearned income	199,950	298,077
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Construction & development | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	3,663	2,256
Commercial real estate | Construction & development | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	707	621
Commercial real estate | Construction & development | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	615	205
Commercial real estate | Farmland
Financing Receivable, Recorded Investment, Past Due
Loans current	151,530	175,281
Loans held for investment, net of unearned income	161,897	181,885
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Farmland | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	388	362
Commercial real estate | Farmland | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,221	0
Commercial real estate | Farmland | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	8,758	6,242
Commercial real estate | Multifamily
Financing Receivable, Recorded Investment, Past Due
Loans current	247,403	227,013
Loans held for investment, net of unearned income	247,403	227,407
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Multifamily | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	0	394
Commercial real estate | Multifamily | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	0	0
Commercial real estate | Multifamily | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	0	0
Commercial real estate | Commercial real estate-other
Financing Receivable, Recorded Investment, Past Due
Loans current	1,147,912	1,102,504
Loans held for investment, net of unearned income	1,155,489	1,107,490
90 Days or More Past Due And Accruing	0	0
Commercial real estate | Commercial real estate-other | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,432	1,965
Commercial real estate | Commercial real estate-other | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	0	347
Commercial real estate | Commercial real estate-other | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	6,145	2,674
Residential real estate
Financing Receivable, Recorded Investment, Past Due
Loans current	522,970	572,063
Loans held for investment, net of unearned income	532,914	577,799
90 Days or More Past Due And Accruing	3,197	124
Residential real estate | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	2,694	3,097
Residential real estate | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,999	965
Residential real estate | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	5,251	1,674
Residential real estate | One- to four- family first liens
Financing Receivable, Recorded Investment, Past Due
Loans current	368,201	402,471
Loans held for investment, net of unearned income	377,100	407,418
90 Days or More Past Due And Accruing	3,197	99
Residential real estate | One- to four- family first liens | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	2,142	2,579
Residential real estate | One- to four- family first liens | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	1,740	857
Residential real estate | One- to four- family first liens | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	5,017	1,511
Residential real estate | One- to four- family junior liens
Financing Receivable, Recorded Investment, Past Due
Loans current	154,769	169,592
Loans held for investment, net of unearned income	155,814	170,381
90 Days or More Past Due And Accruing	0	25
Residential real estate | One- to four- family junior liens | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	552	518
Residential real estate | One- to four- family junior liens | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	259	108
Residential real estate | One- to four- family junior liens | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	234	163
Consumer
Financing Receivable, Recorded Investment, Past Due
Loans current	73,768	82,558
Loans held for investment, net of unearned income	74,022	82,926
90 Days or More Past Due And Accruing	6	12
Consumer | 30 - 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	136	150
Consumer | 60 - 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	13	80
Consumer | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due
Loans past due	$ 105	$ 138

Loans Receivable and the Allo_5

Loans Receivable and the Allowance for Credit Losses - Nonaccrual Status and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	$ 41,303	$ 41,303	$ 41,483
Nonaccrual with no Allowance for Credit Losses	23,329	23,329
90 Days or More Past Due And Accruing	3,238	3,238	136
Interest Income Recognized on Nonaccrual	124	396
Agricultural
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	3,187	3,187	2,894
Nonaccrual with no Allowance for Credit Losses	1,611	1,611
90 Days or More Past Due And Accruing	0	0	0
Interest Income Recognized on Nonaccrual	16	80
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	10,041	10,041	13,276
Nonaccrual with no Allowance for Credit Losses	5,104	5,104
90 Days or More Past Due And Accruing	35	35	0
Interest Income Recognized on Nonaccrual	45	101
Commercial real estate
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	25,037	25,037	22,037
Nonaccrual with no Allowance for Credit Losses	16,393	16,393
90 Days or More Past Due And Accruing	0	0	0
Interest Income Recognized on Nonaccrual	18	159
Commercial real estate | Construction & development
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	879	879	1,494
Nonaccrual with no Allowance for Credit Losses	701	701
90 Days or More Past Due And Accruing	0	0	0
Interest Income Recognized on Nonaccrual	6	41
Commercial real estate | Farmland
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	14,178	14,178	10,402
Nonaccrual with no Allowance for Credit Losses	12,593	12,593
90 Days or More Past Due And Accruing	0	0	0
Interest Income Recognized on Nonaccrual	9	93
Commercial real estate | Multifamily
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	0	0	0
Nonaccrual with no Allowance for Credit Losses	0	0
90 Days or More Past Due And Accruing	0	0	0
Interest Income Recognized on Nonaccrual	0	1
Commercial real estate | Commercial real estate-other
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	9,980	9,980	10,141
Nonaccrual with no Allowance for Credit Losses	3,099	3,099
90 Days or More Past Due And Accruing	0	0	0
Interest Income Recognized on Nonaccrual	3	24
Residential real estate
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	2,876	2,876	3,070
Nonaccrual with no Allowance for Credit Losses	208	208
90 Days or More Past Due And Accruing	3,197	3,197	124
Interest Income Recognized on Nonaccrual	39	48
Residential real estate | One- to four- family first liens
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	2,293	2,293	2,557
Nonaccrual with no Allowance for Credit Losses	207	207
90 Days or More Past Due And Accruing	3,197	3,197	99
Interest Income Recognized on Nonaccrual	33	41
Residential real estate | One- to four- family junior liens
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	583	583	513
Nonaccrual with no Allowance for Credit Losses	1	1
90 Days or More Past Due And Accruing	0	0	25
Interest Income Recognized on Nonaccrual	6	7
Consumer
Financing Receivable, Recorded Investment, Past Due
Nonaccrual	162	162	206
Nonaccrual with no Allowance for Credit Losses	13	13
90 Days or More Past Due And Accruing	6	6	$ 12
Interest Income Recognized on Nonaccrual	$ 6	$ 8

Loans Receivable and the Allo_6

Loans Receivable and the Allowance for Credit Losses - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment
2020	$ 1,314,105
2019	520,076
2018	323,639
2017	328,382
2016	219,013
Prior	443,293
Revolving Loans	448,531
Loans, gross	3,597,039	$ 3,451,266
Performing
Financing Receivable, Recorded Investment
2020	88,039
2019	93,071
2018	82,938
2017	62,272
2016	51,517
Prior	99,730
Revolving Loans	123,134
Loans, gross	600,701
Nonperforming
Financing Receivable, Recorded Investment
2020	17
2019	105
2018	637
2017	1,148
2016	1,194
Prior	3,063
Revolving Loans	71
Loans, gross	6,235
Pass
Financing Receivable, Recorded Investment
2020	1,089,802
2019	382,156
2018	217,711
2017	247,987
2016	157,122
Prior	316,755
Revolving Loans	289,119
Loans, gross	2,700,652	3,246,524
Special mention / watch
Financing Receivable, Recorded Investment
2020	103,489
2019	33,508
2018	10,964
2017	12,835
2016	7,372
Prior	10,901
Revolving Loans	25,373
Loans, gross	204,442	121,709
Substandard
Financing Receivable, Recorded Investment
2020	32,758
2019	11,236
2018	11,389
2017	4,140
2016	1,808
Prior	12,844
Revolving Loans	10,834
Loans, gross	85,009	82,813
Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	184
Loss
Financing Receivable, Recorded Investment
Loans, gross		36
Agricultural
Financing Receivable, Recorded Investment
2020	28,011
2019	14,004
2018	5,025
2017	3,210
2016	3,484
Prior	4,547
Revolving Loans	82,556
Loans, gross	140,837	140,446
Agricultural | Pass
Financing Receivable, Recorded Investment
2020	21,013
2019	11,300
2018	4,898
2017	2,906
2016	2,753
Prior	3,067
Revolving Loans	71,689
Loans, gross	117,626	117,374
Agricultural | Special mention / watch
Financing Receivable, Recorded Investment
2020	5,905
2019	1,422
2018	125
2017	113
2016	600
Prior	1,253
Revolving Loans	6,206
Loans, gross	15,624	13,292
Agricultural | Substandard
Financing Receivable, Recorded Investment
2020	1,093
2019	1,282
2018	2
2017	191
2016	131
Prior	227
Revolving Loans	4,661
Loans, gross	7,587	9,780
Agricultural | Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	0
Agricultural | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Commercial and industrial
Financing Receivable, Recorded Investment
2020	494,683
2019	118,194
2018	72,788
2017	82,376
2016	45,618
Prior	122,207
Revolving Loans	148,661
Loans, gross	1,084,527	835,236
Commercial and industrial | Pass
Financing Receivable, Recorded Investment
2020	486,629
2019	114,316
2018	70,083
2017	77,159
2016	44,088
Prior	114,435
Revolving Loans	125,003
Loans, gross	1,031,713	794,526
Commercial and industrial | Special mention / watch
Financing Receivable, Recorded Investment
2020	5,018
2019	1,309
2018	1,953
2017	4,243
2016	906
Prior	3,356
Revolving Loans	18,615
Loans, gross	35,400	19,038
Commercial and industrial | Substandard
Financing Receivable, Recorded Investment
2020	3,036
2019	2,569
2018	752
2017	974
2016	624
Prior	4,416
Revolving Loans	5,043
Loans, gross	17,414	21,635
Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	1
Commercial and industrial | Loss
Financing Receivable, Recorded Investment
Loans, gross		36
Commercial real estate
Financing Receivable, Recorded Investment
Loans, gross	1,764,739	1,814,859
Commercial real estate | Pass
Financing Receivable, Recorded Investment
Loans, gross		1,687,570
Commercial real estate | Special mention / watch
Financing Receivable, Recorded Investment
Loans, gross		83,511
Commercial real estate | Substandard
Financing Receivable, Recorded Investment
Loans, gross		43,778
Commercial real estate | Doubtful
Financing Receivable, Recorded Investment
Loans, gross		0
Commercial real estate | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Commercial real estate | Construction & development
Financing Receivable, Recorded Investment
2020	54,942
2019	80,303
2018	26,219
2017	8,655
2016	1,946
Prior	1,391
Revolving Loans	26,494
Loans, gross	199,950	298,077
Commercial real estate | Construction & development | Pass
Financing Receivable, Recorded Investment
2020	50,048
2019	76,696
2018	25,444
2017	8,655
2016	1,932
Prior	1,308
Revolving Loans	26,494
Loans, gross	190,577	283,921
Commercial real estate | Construction & development | Special mention / watch
Financing Receivable, Recorded Investment
2020	4,159
2019	1,688
2018	775
2016	14
Prior	34
Loans, gross	6,670	11,423
Commercial real estate | Construction & development | Substandard
Financing Receivable, Recorded Investment
2020	735
2019	1,919
Prior	49
Loans, gross	2,703	2,733
Commercial real estate | Construction & development | Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	0
Commercial real estate | Construction & development | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Commercial real estate | Farmland
Financing Receivable, Recorded Investment
2020	42,116
2019	40,443
2018	19,944
2017	18,705
2016	12,276
Prior	24,809
Revolving Loans	3,604
Loans, gross	161,897	181,885
Commercial real estate | Farmland | Pass
Financing Receivable, Recorded Investment
2020	37,140
2019	32,227
2018	14,315
2017	15,023
2016	10,590
Prior	18,171
Revolving Loans	2,257
Loans, gross	129,723	141,107
Commercial real estate | Farmland | Special mention / watch
Financing Receivable, Recorded Investment
2020	2,244
2019	4,584
2018	1,290
2017	1,953
2016	1,237
Prior	587
Revolving Loans	353
Loans, gross	12,248	21,307
Commercial real estate | Farmland | Substandard
Financing Receivable, Recorded Investment
2020	2,732
2019	3,632
2018	4,339
2017	1,729
2016	449
Prior	6,051
Revolving Loans	994
Loans, gross	19,926	19,471
Commercial real estate | Farmland | Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	0
Commercial real estate | Farmland | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Commercial real estate | Multifamily
Financing Receivable, Recorded Investment
2020	110,701
2019	18,302
2018	18,346
2017	37,740
2016	16,800
Prior	32,726
Revolving Loans	12,788
Loans, gross	247,403	227,407
Commercial real estate | Multifamily | Pass
Financing Receivable, Recorded Investment
2020	109,637
2019	17,948
2018	18,346
2017	37,740
2016	16,722
Prior	32,726
Revolving Loans	12,788
Loans, gross	245,907	226,124
Commercial real estate | Multifamily | Special mention / watch
Financing Receivable, Recorded Investment
2020	348
2016	78
Loans, gross	426	90
Commercial real estate | Multifamily | Substandard
Financing Receivable, Recorded Investment
2020	716
2019	354
Loans, gross	1,070	1,193
Commercial real estate | Multifamily | Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	0
Commercial real estate | Multifamily | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Commercial real estate | Commercial real estate-other
Financing Receivable, Recorded Investment
2020	495,596
2019	155,654
2018	97,742
2017	114,276
2016	86,178
Prior	154,820
Revolving Loans	51,223
Loans, gross	1,155,489	1,107,490
Commercial real estate | Commercial real estate-other | Pass
Financing Receivable, Recorded Investment
2020	385,335
2019	129,669
2018	84,625
2017	106,504
2016	81,037
Prior	147,048
Revolving Loans	50,888
Loans, gross	985,106	1,036,418
Commercial real estate | Commercial real estate-other | Special mention / watch
Financing Receivable, Recorded Investment
2020	85,815
2019	24,505
2018	6,821
2017	6,526
2016	4,537
Prior	5,671
Revolving Loans	199
Loans, gross	134,074	50,691
Commercial real estate | Commercial real estate-other | Substandard
Financing Receivable, Recorded Investment
2020	24,446
2019	1,480
2018	6,296
2017	1,246
2016	604
Prior	2,101
Revolving Loans	136
Loans, gross	36,309	20,381
Commercial real estate | Commercial real estate-other | Doubtful
Financing Receivable, Recorded Investment
2020	0
Loans, gross	0	0
Commercial real estate | Commercial real estate-other | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Residential real estate
Financing Receivable, Recorded Investment
Loans, gross	532,914	577,799
Residential real estate | Pass
Financing Receivable, Recorded Investment
Loans, gross		564,404
Residential real estate | Special mention / watch
Financing Receivable, Recorded Investment
Loans, gross		5,829
Residential real estate | Substandard
Financing Receivable, Recorded Investment
Loans, gross		7,402
Residential real estate | Doubtful
Financing Receivable, Recorded Investment
Loans, gross		164
Residential real estate | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Residential real estate | One- to four- family first liens
Financing Receivable, Recorded Investment
2020	71,436
2019	61,247
2018	52,818
2017	48,300
2016	44,497
Prior	88,756
Revolving Loans	10,046
Loans, gross	377,100	407,418
Residential real estate | One- to four- family first liens | Performing
Financing Receivable, Recorded Investment
2020	71,419
2019	61,180
2018	52,230
2017	47,208
2016	43,567
Prior	85,959
Revolving Loans	10,046
Loans, gross	371,609
Residential real estate | One- to four- family first liens | Nonperforming
Financing Receivable, Recorded Investment
2020	17
2019	67
2018	588
2017	1,092
2016	930
Prior	2,797
Revolving Loans	0
Loans, gross	5,491
Residential real estate | One- to four- family first liens | Pass
Financing Receivable, Recorded Investment
Loans, gross		396,175
Residential real estate | One- to four- family first liens | Special mention / watch
Financing Receivable, Recorded Investment
Loans, gross		4,547
Residential real estate | One- to four- family first liens | Substandard
Financing Receivable, Recorded Investment
Loans, gross		6,532
Residential real estate | One- to four- family first liens | Doubtful
Financing Receivable, Recorded Investment
Loans, gross		164
Residential real estate | One- to four- family first liens | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Residential real estate | One- to four- family junior liens
Financing Receivable, Recorded Investment
2020	3,687
2019	12,453
2018	16,629
2017	8,239
2016	4,593
Prior	7,797
Revolving Loans	102,416
Loans, gross	155,814	170,381
Residential real estate | One- to four- family junior liens | Performing
Financing Receivable, Recorded Investment
2020	3,687
2019	12,453
2018	16,629
2017	8,207
2016	4,343
Prior	7,568
Revolving Loans	102,345
Loans, gross	155,232
Residential real estate | One- to four- family junior liens | Nonperforming
Financing Receivable, Recorded Investment
2020	0
2019	0
2018	0
2017	32
2016	250
Prior	229
Revolving Loans	71
Loans, gross	582
Residential real estate | One- to four- family junior liens | Pass
Financing Receivable, Recorded Investment
Loans, gross		168,229
Residential real estate | One- to four- family junior liens | Special mention / watch
Financing Receivable, Recorded Investment
Loans, gross		1,282
Residential real estate | One- to four- family junior liens | Substandard
Financing Receivable, Recorded Investment
Loans, gross		870
Residential real estate | One- to four- family junior liens | Doubtful
Financing Receivable, Recorded Investment
Loans, gross		0
Residential real estate | One- to four- family junior liens | Loss
Financing Receivable, Recorded Investment
Loans, gross		0
Consumer
Financing Receivable, Recorded Investment
2020	12,933
2019	19,476
2018	14,128
2017	6,881
2016	3,621
Prior	6,240
Revolving Loans	10,743
Loans, gross	74,022	82,926
Consumer | Performing
Financing Receivable, Recorded Investment
2020	12,933
2019	19,438
2018	14,079
2017	6,857
2016	3,607
Prior	6,203
Revolving Loans	10,743
Loans, gross	73,860
Consumer | Nonperforming
Financing Receivable, Recorded Investment
2020	0
2019	38
2018	49
2017	24
2016	14
Prior	37
Revolving Loans	0
Loans, gross	$ 162
Consumer | Pass
Financing Receivable, Recorded Investment
Loans, gross		82,650
Consumer | Special mention / watch
Financing Receivable, Recorded Investment
Loans, gross		39
Consumer | Substandard
Financing Receivable, Recorded Investment
Loans, gross		218
Consumer | Doubtful
Financing Receivable, Recorded Investment
Loans, gross		19
Consumer | Loss
Financing Receivable, Recorded Investment
Loans, gross		$ 0

Loans Receivable and the Allo_7

Loans Receivable and the Allowance for Credit Losses - Activity in Allowance for Credit Losses (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 51,187,000	$ 29,652,000	$ 29,079,000	$ 29,307,000	$ 29,307,000
Charge-offs	(2,103,000)	(2,187,000)	(3,600,000)	(3,542,000)
Recoveries	236,000	530,000	535,000	636,000
Credit loss expense	6,324,000	696,000	25,646,000	2,290,000
Ending balance	55,644,000	28,691,000	$ 55,644,000	28,691,000	$ 29,079,000
Accounting standards update			us-gaap:AccountingStandardsUpdate201613Member		us-gaap:AccountingStandardsUpdate201613Member
Credit loss expense, off balance sheet credit exposure	(1,600,000)		$ 772,000	0
Loans receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Accrued interest receivable	15,300,000		15,300,000
Impact of ASC 326 Adoption
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			3,984,000
Ending balance					$ 3,984,000
Agricultural
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,146,000	3,691,000	3,748,000	3,637,000	3,637,000
Charge-offs	(109,000)	(16,000)	(193,000)	(150,000)
Recoveries	1,000	2,000	26,000	9,000
Credit loss expense	370,000	43,000	384,000	224,000
Ending balance	1,408,000	3,720,000	1,408,000	3,720,000	3,748,000
Agricultural | Impact of ASC 326 Adoption
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	(2,557,000)		(2,557,000)
Ending balance					(2,557,000)
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	19,309,000	7,594,000	8,394,000	7,478,000	7,478,000
Charge-offs	(902,000)	(1,759,000)	(1,373,000)	(2,113,000)
Recoveries	166,000	100,000	379,000	148,000
Credit loss expense	136,000	1,698,000	8,581,000	2,120,000
Ending balance	18,709,000	7,633,000	18,709,000	7,633,000	8,394,000
Commercial and industrial | Impact of ASC 326 Adoption
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,728,000		2,728,000
Ending balance					2,728,000
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	23,138,000	14,798,000	13,804,000	15,635,000	15,635,000
Charge-offs	(792,000)	(310,000)	(1,512,000)	(960,000)
Recoveries	11,000	257,000	19,000	265,000
Credit loss expense	5,864,000	(1,090,000)	14,610,000	(1,285,000)
Ending balance	28,221,000	13,655,000	28,221,000	13,655,000	13,804,000
Commercial real estate | Impact of ASC 326 Adoption
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,300,000		1,300,000
Ending balance					1,300,000
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	6,425,000	3,272,000	2,685,000	2,349,000	2,349,000
Charge-offs	(103,000)	(1,000)	(103,000)	(50,000)
Recoveries	8,000	8,000	15,000	17,000
Credit loss expense	(256,000)	98,000	1,427,000	1,061,000
Ending balance	6,074,000	3,377,000	6,074,000	3,377,000	2,685,000
Residential real estate | Impact of ASC 326 Adoption
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,050,000		2,050,000
Ending balance					2,050,000
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,169,000	297,000	448,000	208,000	208,000
Charge-offs	(197,000)	(101,000)	(419,000)	(269,000)
Recoveries	50,000	163,000	96,000	197,000
Credit loss expense	210,000	(53,000)	644,000	170,000
Ending balance	1,232,000	$ 306,000	1,232,000	$ 306,000	448,000
Consumer | Impact of ASC 326 Adoption
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 463,000		$ 463,000
Ending balance					$ 463,000

Loans Receivable and the Allo_8

Loans Receivable and the Allowance for Credit Losses - Allowance for Loan Losses Based on Evaluation Method (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Loans held for investment, net of unearned income
Individually evaluated for impairment	$ 35,266			$ 33,495
Collectively evaluated for impairment	3,561,773			3,395,220
Loans, gross	3,597,039			3,451,266
Allowance for credit losses:
Individually evaluated for impairment	3,179			3,663
Collectively evaluated for impairment	52,465			24,166
Allowance for credit losses on loans	55,644	$ 51,187	$ 29,079	29,079	$ 28,691	$ 29,652	$ 29,307
Purchased credit impaired loans
Loans held for investment, net of unearned income
Loans, gross				22,551
Allowance for credit losses:
Allowance for credit losses on loans				1,250
Agricultural
Loans held for investment, net of unearned income
Individually evaluated for impairment	2,747			4,312
Collectively evaluated for impairment	138,090			135,246
Loans, gross	140,837			140,446
Allowance for credit losses:
Individually evaluated for impairment	490			212
Collectively evaluated for impairment	918			3,536
Allowance for credit losses on loans	1,408	1,146	3,748	3,748	3,720	3,691	3,637
Agricultural | Purchased credit impaired loans
Loans held for investment, net of unearned income
Loans, gross				888
Allowance for credit losses:
Allowance for credit losses on loans				0
Commercial and industrial
Loans held for investment, net of unearned income
Individually evaluated for impairment	8,593			12,242
Collectively evaluated for impairment	1,075,934			822,939
Loans, gross	1,084,527			835,236
Allowance for credit losses:
Individually evaluated for impairment	1,774			2,198
Collectively evaluated for impairment	16,935			6,194
Allowance for credit losses on loans	18,709	19,309	8,394	8,394	7,633	7,594	7,478
Commercial and industrial | Purchased credit impaired loans
Loans held for investment, net of unearned income
Loans, gross				55
Allowance for credit losses:
Allowance for credit losses on loans				2
Commercial real estate
Loans held for investment, net of unearned income
Individually evaluated for impairment	23,714			16,082
Collectively evaluated for impairment	1,741,025			1,781,306
Loans, gross	1,764,739			1,814,859
Allowance for credit losses:
Individually evaluated for impairment	915			1,180
Collectively evaluated for impairment	27,306			11,836
Allowance for credit losses on loans	28,221	23,138	13,804	13,804	13,655	14,798	15,635
Commercial real estate | Purchased credit impaired loans
Loans held for investment, net of unearned income
Loans, gross				17,471
Allowance for credit losses:
Allowance for credit losses on loans				788
Residential real estate
Loans held for investment, net of unearned income
Individually evaluated for impairment	204			838
Collectively evaluated for impairment	532,710			572,865
Loans, gross	532,914			577,799
Allowance for credit losses:
Individually evaluated for impairment				73
Collectively evaluated for impairment	6,074			2,152
Allowance for credit losses on loans	6,074	6,425	2,685	2,685	3,377	3,272	2,349
Residential real estate | Purchased credit impaired loans
Loans held for investment, net of unearned income
Loans, gross				4,096
Allowance for credit losses:
Allowance for credit losses on loans				460
Consumer
Loans held for investment, net of unearned income
Individually evaluated for impairment	8			21
Collectively evaluated for impairment	74,014			82,864
Loans, gross	74,022			82,926
Allowance for credit losses:
Collectively evaluated for impairment	1,232			448
Allowance for credit losses on loans	$ 1,232	$ 1,169	$ 448	448	$ 306	$ 297	$ 208
Consumer | Purchased credit impaired loans
Loans held for investment, net of unearned income
Loans, gross				41
Allowance for credit losses:
Allowance for credit losses on loans				$ 0

Loans Receivable and the Allo_9

Loans Receivable and the Allowance for Credit Losses - Primary Type of Collateral (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	$ 3,541,395			$ 3,422,187
Allowance for credit losses on loans	55,644	$ 51,187	$ 29,079	29,079	$ 28,691	$ 29,652	$ 29,307
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	25,272
Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	6,085
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	3,909
Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	35,266
Allowance for credit losses on loans	3,179
Agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	1,408	1,146	3,748	3,748	3,720	3,691	3,637
Agricultural | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	124
Agricultural | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	2,011
Agricultural | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	612
Agricultural | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	2,747
Allowance for credit losses on loans	490
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	18,709	19,309	8,394	8,394	7,633	7,594	7,478
Commercial and industrial | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	1,230
Commercial and industrial | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	4,066
Commercial and industrial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	3,297
Commercial and industrial | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	8,593
Allowance for credit losses on loans	1,774
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	28,221	23,138	13,804	13,804	13,655	14,798	15,635
Commercial real estate | Construction & development | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	700
Commercial real estate | Construction & development | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Construction & development | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Construction & development | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	700
Allowance for credit losses on loans	0
Commercial real estate | Farmland | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	13,646
Commercial real estate | Farmland | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Farmland | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Farmland | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	13,646
Allowance for credit losses on loans	283
Commercial real estate | Multifamily | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Multifamily | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Multifamily | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Multifamily | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Allowance for credit losses on loans	0
Commercial real estate | Commercial real estate-other | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	9,368
Commercial real estate | Commercial real estate-other | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Commercial real estate-other | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Commercial real estate | Commercial real estate-other | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	9,368
Allowance for credit losses on loans	632
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	6,074	6,425	2,685	2,685	3,377	3,272	2,349
Residential real estate | One- to four- family first liens | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	204
Residential real estate | One- to four- family first liens | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Residential real estate | One- to four- family first liens | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Residential real estate | One- to four- family first liens | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	204
Allowance for credit losses on loans	0
Residential real estate | One- to four- family junior liens | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Residential real estate | One- to four- family junior liens | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Residential real estate | One- to four- family junior liens | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Residential real estate | One- to four- family junior liens | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Allowance for credit losses on loans	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	1,232	$ 1,169	$ 448	$ 448	$ 306	$ 297	$ 208
Consumer | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Consumer | Equipment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	8
Consumer | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	0
Consumer | Collateral Pledged
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, net	8
Allowance for credit losses on loans	$ 0

Loans Receivable and the All_10

Loans Receivable and the Allowance for Credit Losses - TDR Disclosures (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)contractsecurity	Jun. 30, 2019USD ($)contractsecurity	Jun. 30, 2020USD ($)contractsecurity	Jun. 30, 2019USD ($)securitycontract	Dec. 31, 2019USD ($)
Receivables [Abstract]
Troubled Debt Restructurings	$ 8,900		$ 8,900		$ 11,000
Financing Receivable, Modifications
Number of Contracts | contract	5	4	8	5
Pre-Modification Outstanding Recorded Investment	$ 707	$ 265	$ 1,466	$ 316
Post-Modification Outstanding Recorded Investment	$ 707	$ 264	$ 1,515	$ 315
TDR, subsequent to restructure | security	0	0	0	0
COVID-19
Financing Receivable, Modifications
Amount of deferrals	$ 462,200		$ 462,200
Commercial real estate | Commercial real estate-other | Extended maturity
Financing Receivable, Modifications
Number of Contracts | contract			3
Pre-Modification Outstanding Recorded Investment			$ 759
Post-Modification Outstanding Recorded Investment			$ 808
Residential real estate | One- to four- family first liens | Extended maturity
Financing Receivable, Modifications
Number of Contracts | contract	2	3	2	3
Pre-Modification Outstanding Recorded Investment	$ 145	$ 240	$ 145	$ 240
Post-Modification Outstanding Recorded Investment	$ 145	$ 239	$ 145	$ 239
Residential real estate | One- to four- family junior liens | Extended maturity
Financing Receivable, Modifications
Number of Contracts | contract		1		2
Pre-Modification Outstanding Recorded Investment		$ 25		$ 76
Post-Modification Outstanding Recorded Investment		$ 25		$ 76
Agricultural | Other
Financing Receivable, Modifications
Number of Contracts | contract	1		1
Pre-Modification Outstanding Recorded Investment	$ 208		$ 208
Post-Modification Outstanding Recorded Investment	$ 208		$ 208
Farmland | Other
Financing Receivable, Modifications
Number of Contracts | contract	2		2
Pre-Modification Outstanding Recorded Investment	$ 354		$ 354
Post-Modification Outstanding Recorded Investment	$ 354		$ 354

Loans Receivable and the All_11

Loans Receivable and the Allowance for Credit Losses - Pre-ASC 326 Impaired Loan Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2019
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			$ 21,568
Impaired financing receivable, with related allowance, recorded investment			11,927
Recorded Investment			33,495
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			25,790
Impaired financing receivable, with related allowance, unpaid principal balance			13,121
Unpaid Principal Balance			38,911
Related Allowance			3,663
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	$ 11,493	$ 10,101
Impaired financing receivable, with related allowance, average recorded investment	9,290	8,749
Average Recorded Investment	20,783	18,850
Interest Income Recognized
Impaired financing receivable, with no related allowance, interest income, accrual method	89	32
Impaired financing receivable, with related allowance, interest income, accrual method	74	85
Interest Income Recognized	163	117
Agricultural
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			2,383
Impaired financing receivable, with related allowance, recorded investment			1,929
Recorded Investment			4,312
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			2,913
Impaired financing receivable, with related allowance, unpaid principal balance			1,930
Unpaid Principal Balance			4,843
Related Allowance			212
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	2,632	2,227
Impaired financing receivable, with related allowance, average recorded investment	2,363	2,279
Average Recorded Investment	4,995	4,506
Interest Income Recognized
Impaired financing receivable, with no related allowance, interest income, accrual method	47	12
Impaired financing receivable, with related allowance, interest income, accrual method	53	60
Interest Income Recognized	100	72
Commercial and industrial
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			7,391
Impaired financing receivable, with related allowance, recorded investment			4,851
Recorded Investment			12,242
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			10,875
Impaired financing receivable, with related allowance, unpaid principal balance			5,417
Unpaid Principal Balance			16,292
Related Allowance			2,198
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	4,347	4,610
Impaired financing receivable, with related allowance, average recorded investment	4,271	4,042
Average Recorded Investment	8,618	8,652
Commercial real estate
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			11,196
Impaired financing receivable, with related allowance, recorded investment			4,886
Recorded Investment			16,082
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			11,403
Impaired financing receivable, with related allowance, unpaid principal balance			5,512
Unpaid Principal Balance			16,915
Related Allowance			1,180
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	3,921	2,868
Impaired financing receivable, with related allowance, average recorded investment	2,130	1,988
Average Recorded Investment	6,051	4,856
Interest Income Recognized
Impaired financing receivable, with no related allowance, interest income, accrual method	42	20
Impaired financing receivable, with related allowance, interest income, accrual method	15	17
Interest Income Recognized	57	37
Commercial real estate | Construction & development
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			1,181
Impaired financing receivable, with related allowance, recorded investment			135
Recorded Investment			1,316
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			1,218
Impaired financing receivable, with related allowance, unpaid principal balance			135
Unpaid Principal Balance			1,353
Related Allowance			135
Commercial real estate | Farmland
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			4,306
Impaired financing receivable, with related allowance, recorded investment			1,109
Recorded Investment			5,415
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			4,331
Impaired financing receivable, with related allowance, unpaid principal balance			1,148
Unpaid Principal Balance			5,479
Related Allowance			347
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	3,001	2,011
Impaired financing receivable, with related allowance, average recorded investment	86	57
Average Recorded Investment	3,087	2,068
Interest Income Recognized
Impaired financing receivable, with no related allowance, interest income, accrual method	32
Impaired financing receivable, with related allowance, interest income, accrual method	5	5
Interest Income Recognized	37	5
Commercial real estate | Commercial real estate-other
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			5,709
Impaired financing receivable, with related allowance, recorded investment			3,642
Recorded Investment			9,351
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			5,854
Impaired financing receivable, with related allowance, unpaid principal balance			4,229
Unpaid Principal Balance			10,083
Related Allowance			698
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	920	857
Impaired financing receivable, with related allowance, average recorded investment	2,044	1,931
Average Recorded Investment	2,964	2,788
Interest Income Recognized
Impaired financing receivable, with no related allowance, interest income, accrual method	10	20
Impaired financing receivable, with related allowance, interest income, accrual method	10	12
Interest Income Recognized	20	32
Residential real estate
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			577
Impaired financing receivable, with related allowance, recorded investment			261
Recorded Investment			838
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			578
Impaired financing receivable, with related allowance, unpaid principal balance			262
Unpaid Principal Balance			840
Related Allowance			73
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	572	382
Impaired financing receivable, with related allowance, average recorded investment	526	440
Average Recorded Investment	1,098	822
Interest Income Recognized
Impaired financing receivable, with related allowance, interest income, accrual method	6	8
Interest Income Recognized	6	8
Residential real estate | One- to four- family first liens
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			577
Impaired financing receivable, with related allowance, recorded investment			261
Recorded Investment			838
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			578
Impaired financing receivable, with related allowance, unpaid principal balance			262
Unpaid Principal Balance			840
Related Allowance			73
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	497	332
Impaired financing receivable, with related allowance, average recorded investment	526	440
Average Recorded Investment	1,023	772
Interest Income Recognized
Impaired financing receivable, with related allowance, interest income, accrual method	6	8
Interest Income Recognized	6	8
Residential real estate | One- to four- family junior liens
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	75	50
Average Recorded Investment	75	50
Consumer
Recorded Investment
Impaired financing receivable, with no related allowance, recorded investment			21
Recorded Investment			21
Unpaid Principal Balance
Impaired financing receivable, with no related allowance, unpaid principal balance			21
Unpaid Principal Balance			$ 21
Average Recorded Investment
Impaired financing receivable, with no related allowance, average recorded investment	21	14
Average Recorded Investment	$ 21	$ 14

Loans Receivable and the All_12

Loans Receivable and the Allowance for Credit Losses - PCD Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jun. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	$ 3,422,187	$ 3,541,395
Carrying amount	22,551
Allowance for credit losses	1,250
Carrying amount, net of allowance for credit losses	21,301
Purchased credit impaired loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	23,047
Purchased credit impaired loans | Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	904
Purchased credit impaired loans | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	147
Purchased credit impaired loans | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	17,803
Purchased credit impaired loans | Residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	4,136
Purchased credit impaired loans | Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans receivable, net	$ 57

Derivatives, Hedging Activiti_3

Derivatives, Hedging Activities and Balance Sheet Offsetting - Derivatives and Hedging Activities (Details) - USD ($)	Jun. 30, 2020	Feb. 29, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative assets, fair value	$ 14,391,000		$ 1,848,000
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, notional amount	55,927,000		16,734,000
Derivative assets, fair value	0		0
Derivative liabilities, fair value	4,066,000		1,113,000
Designated as Hedging Instrument | Fair value hedges | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative, notional amount	25,927,000		16,734,000
Derivative assets, fair value	0		0
Derivative liabilities, fair value	3,106,000		1,113,000
Designated as Hedging Instrument | Cash flow hedges | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative, notional amount	30,000,000	$ 30,000,000	0
Derivative assets, fair value	0		0
Derivative liabilities, fair value	960,000		0
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative, notional amount	354,953,000		128,343,000
Derivative assets, fair value	14,391,000		1,848,000
Derivative liabilities, fair value	14,451,000		2,129,000
Not Designated as Hedging Instrument | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative, notional amount	340,444,000		113,632,000
Derivative assets, fair value	14,388,000		1,824,000
Derivative liabilities, fair value	14,440,000		1,999,000
Not Designated as Hedging Instrument | RPAs | RPAs - protection sold
Derivatives, Fair Value [Line Items]
Derivative, notional amount	4,589,000		4,702,000
Derivative assets, fair value	3,000		24,000
Derivative liabilities, fair value	0		0
Not Designated as Hedging Instrument | RPAs | RPAs - protection purchased
Derivatives, Fair Value [Line Items]
Derivative, notional amount	9,920,000		10,009,000
Derivative assets, fair value	0		0
Derivative liabilities, fair value	$ 11,000		$ 130,000

Derivatives, Hedging Activiti_4

Derivatives, Hedging Activities and Balance Sheet Offsetting - Additional Information (Details) - USD ($)	Jun. 30, 2020	Feb. 29, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap contracts, interest income to be reclassified in next 12 months	$ 356,000
Fair value of derivatives in a net liability position, including accrued interest	18,700,000
Collateral related to the agreement	14,391,000		$ 1,848,000
Assets needed for immediate settlement, aggregate fair value	18,700,000
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	55,927,000		16,734,000
Interest rate swaps | Cash flow hedges | Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 30,000,000	$ 30,000,000	$ 0

Derivatives, Hedging Activiti_5

Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Impacts on Statements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative	$ (129)	$ 0	$ (1,017)	$ 0
Amount of Gain (Loss) Reclassified from AOCI into Income	(62)	0	(57)	0
Interest income	38,712	34,832	76,118	60,808
Interest expense	8,046	10,119	18,045	17,531
Designated as Hedging Instrument | Interest rate swaps | Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivative	(129)	0	(1,017)	0
Designated as Hedging Instrument | Interest rate swaps | Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Interest income	(80)	0	(127)	(1)
Interest expense	0	0	0	0
Designated as Hedging Instrument | Interest rate swaps | Interest Income | Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount reclassified from AOCI into income	0			0
Designated as Hedging Instrument | Interest rate swaps | Interest Income | Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Change in fair value of hedged items	237	491	1,988	795
Change in fair value of derivative instruments	(232)	(491)	(1,993)	(796)
Designated as Hedging Instrument | Interest rate swaps | Interest Expense | Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	(62)	0	(57)	0
Amount reclassified from AOCI into income	62		57	0
Designated as Hedging Instrument | Interest rate swaps | Interest Expense | Fair value hedges
Derivative Instruments, Gain (Loss) [Line Items]
Change in fair value of hedged items	0	0	0	0
Change in fair value of derivative instruments	$ 0	$ 0	$ 0	$ 0

Derivatives, Hedging Activiti_6

Derivatives, Hedging Activities and Balance Sheet Offsetting - Hedged Items in Fair Value Hedging Relationship (Details) - Interest rate swaps - Designated as Hedging Instrument - Fair value hedges $ in Thousands	Jun. 30, 2020USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of the Hedged Assets	$ 29,035
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Asset	$ 3,099

Derivatives, Hedging Activiti_7

Derivatives, Hedging Activities and Balance Sheet Offsetting - Schedule of Other Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	$ (24)	$ (215)
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)			$ 220	$ (254)
Interest rate swaps | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	(18)	(108)
Interest rate swaps | Other income | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)			123	(130)
RPAs | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)	$ (6)	$ (107)
RPAs | Other income | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives not designated as hedging, gain (loss)			$ 97	$ (124)

Derivatives, Hedging Activiti_8

Derivatives, Hedging Activities and Balance Sheet Offsetting - Offsetting Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Asset Derivatives
Gross Amounts of Recognized Assets (Liabilities)	$ 14,391	$ 1,848
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts of Assets (Liabilities) presented in the Balance Sheet	14,391	1,848
Financial Instruments	0	0
Cash Collateral Pledged	0	0
Net Assets (Liabilities)	14,391	1,848
Liability Derivatives
Gross Amounts of Recognized Assets (Liabilities)	(18,517)	(3,242)
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts of Assets (Liabilities) presented in the Balance Sheet	(18,517)	(3,242)
Financial Instruments	0	0
Cash Collateral Pledged	(18,517)	(3,242)
Net Assets (Liabilities)	$ 0	$ 0

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Goodwill and Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 91,918
Fair value adjustment	2,059
Total goodwill, end of period	$ 93,977

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite-lived trade name intangible	$ 7,040	$ 7,040
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	49,710	49,710
Accumulated Amortization	(28,307)	(24,532)
Net Carrying Amount	21,403	25,178
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	41,745	41,745
Accumulated Amortization	(23,932)	(21,032)
Net Carrying Amount	17,813	20,713
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,265	5,265
Accumulated Amortization	(2,000)	(1,195)
Net Carrying Amount	3,265	4,070
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,700	2,700
Accumulated Amortization	(2,375)	(2,305)
Net Carrying Amount	$ 325	$ 395

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2020	$ 3,200
2021	5,358
2022	4,363
2023	3,402
2024	2,443
Thereafter	2,637
Net Carrying Amount	21,403	$ 25,178
Core deposit intangible
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2020	2,507
2021	4,190
2022	3,487
2023	2,833
2024	2,180
Thereafter	2,616
Net Carrying Amount	17,813	20,713
Customer relationship intangible
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2020	630
2021	1,062
2022	797
2023	518
2024	239
Thereafter	19
Net Carrying Amount	3,265	4,070
Other
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2020	63
2021	106
2022	79
2023	51
2024	24
Thereafter	2
Net Carrying Amount	$ 325	$ 395

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Other Assets [Abstract]
Bank-owned life insurance	$ 82,411	$ 81,625
Interest receivable	21,082	18,525
FHLB stock	12,858	15,381
Mortgage servicing rights	5,833	7,026
Operating lease ROU assets, net	4,067	4,499
Federal & state taxes, current	0	2,318
Federal & state taxes, deferred	7,435	3,530
Derivative assets	14,391	1,848
Other receivables/assets	12,464	13,208
Other assets	$ 160,541	$ 147,960

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Deposits [Abstract]
Noninterest bearing deposits	$ 867,637	$ 662,209
Interest checking deposits	1,153,697	962,830
Money market deposits	811,368	763,028
Savings deposits	463,262	387,142
Certificates of deposit under $250,000	656,723	682,232
Certificates of deposit of $250,000 or more	312,748	271,214
Total deposits	4,265,435	3,728,655
Domestic time deposit, brokered	5,200	6,600
Domestic non-time deposit, brokered	12,600	10,100
Deposits of government entities	$ 130,700	$ 96,600

Short-Term Borrowings (Details)

Short-Term Borrowings (Details) - USD ($)	Apr. 30, 2015	Jun. 30, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Weighted Average Rate		0.51%	1.17%
Short-term borrowings		$ 162,224,000	$ 139,349,000
Pledged securities		$ 377,800,000	$ 264,800,000
Securities sold under agreements to repurchase
Short-term Debt [Line Items]
Weighted Average Rate		0.41%	1.06%
Short-term borrowings		$ 152,224,000	$ 117,249,000
Federal Home Loan Bank advances
Short-term Debt [Line Items]
Weighted Average Rate		0.00%	1.73%
Short-term borrowings		$ 0	$ 22,100,000
Unsecured line of credit
Short-term Debt [Line Items]
Weighted Average Rate		1.94%	0.00%
Short-term borrowings		$ 10,000,000	$ 0
Unsercured line of credit, maximum borrowing capacity	$ 5,000,000	$ 10,000,000
Unsecured line of credit | LIBOR
Short-term Debt [Line Items]
Debt instrument, basis spread on variable rate	2.00%	1.75%
Federal funds purchased
Short-term Debt [Line Items]
Short-term borrowings		$ 0	0
Unsercured line of credit, maximum borrowing capacity		145,000,000
Federal Reserve Bank advances
Short-term Debt [Line Items]
Short-term borrowings		0	0
Financing capacity		65,600,000	12,700,000
Pledged securities		$ 70,200,000	$ 13,000,000

Long-Term Debt - Junior Subordi

Long-Term Debt - Junior Subordinated Notes (Details) - Junior subordinated notes - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt instrument, face amount	$ 44,847	$ 44,847
Debt instrument, book value	41,675	41,587
ATBancorp Statutory Trust I
Debt Instrument [Line Items]
Debt instrument, face amount	7,732	7,732
Debt instrument, book value	$ 6,832	$ 6,814
Interest rate	1.99%	3.57%
ATBancorp Statutory Trust I | LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.68%	1.68%
ATBancorp Statutory Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 12,372	$ 12,372
Debt instrument, book value	$ 10,821	$ 10,794
Interest rate	1.96%	3.54%
ATBancorp Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.65%	1.65%
Barron Investment Capital Trust I
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,062	$ 2,062
Debt instrument, book value	$ 1,750	$ 1,732
Interest rate	2.46%	4.08%
Barron Investment Capital Trust I | LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.15%	2.15%
Central Bancshares Capital Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,217	$ 7,217
Debt instrument, book value	$ 6,808	$ 6,783
Interest rate	3.81%	5.39%
Central Bancshares Capital Trust II | LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.50%	3.50%
MidWestOne Statutory Trust II
Debt Instrument [Line Items]
Debt instrument, face amount	$ 15,464	$ 15,464
Debt instrument, book value	$ 15,464	$ 15,464
Interest rate	1.90%	3.48%
MidWestOne Statutory Trust II | LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.59%	1.59%

Long-Term Debt - Subordinated D

Long-Term Debt - Subordinated Debentures (Details) - Subordinated debt - USD ($) $ in Millions	Jul. 28, 2020	Jun. 30, 2020	May 01, 2019
Debt Instrument [Line Items]
Debt instrument, face amount			$ 10.9
Interest rate		6.50%
Percentage of debentures, decrease to Tier 2 treatment, per year		20.00%
Decrease to Tier 2 treatment, period of recognition		5 years
Percentage of debentures, measured as Tier 2		40.00%
Subsequent event | 5.75% Fixed to floating subordinated notes
Debt Instrument [Line Items]
Interest rate	5.75%
Subsequent event | 5.75% Fixed to floating subordinated notes | Private placement
Debt Instrument [Line Items]
Sale of equity	$ 65

Long-Term Debt - Other Long-Ter

Long-Term Debt - Other Long-Term Debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Apr. 30, 2019	Apr. 30, 2015
Finance lease payable
Debt Instrument [Line Items]
Weighted Average Rate	8.89%	8.89%
Balance	$ 1,162	$ 1,224
FHLB borrowings
Debt Instrument [Line Items]
Weighted Average Rate	1.92%	2.25%
Balance	$ 108,246	$ 145,700
Federal home loan, bank advances general debt obligations, disclosures maximum borrowing capacity as percentage of total assets	45.00%
Notes payable to unaffiliated bank
Debt Instrument [Line Items]
Weighted Average Rate	1.93%	3.44%
Balance	$ 28,000	$ 32,250
Notes payable to unaffiliated bank | Unsecured Note Payable, Entered April 2015
Debt Instrument [Line Items]
Original note face amount				$ 35,000
Notes payable to unaffiliated bank | Unsecured Note Payable, Entered April 2019
Debt Instrument [Line Items]
Balance	$ 28,000
Original note face amount			$ 35,000
Other long-term debt
Debt Instrument [Line Items]
Weighted Average Rate	1.98%	2.51%
Balance	$ 137,408	$ 179,174

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Amount
Income tax based on statutory rate	$ 2,994	$ 2,917	$ 2,118	$ 4,844
Tax-exempt interest	(703)	(472)	(1,346)	(940)
Bank-owned life insurance	(133)	(99)	(242)	(181)
State income taxes, net of federal income tax benefit	736	744	545	1,231
Non-deductible acquisition expenses	0	136	0	162
General business credits	(388)	(14)	(771)	(28)
Other	40	6	44	20
Total income tax expense	$ 2,546	$ 3,218	$ 348	$ 5,108
% of Pretax Income
Income tax based on statutory rate	21.00%	21.00%	21.00%	21.00%
Tax-exempt interest	(4.90%)	(3.40%)	(13.30%)	(4.10%)
Bank-owned life insurance	(0.90%)	(0.70%)	(2.40%)	(0.80%)
State income taxes, net of federal income tax benefit	5.20%	5.40%	5.40%	5.30%
Non-deductible acquisition expenses	0.00%	1.00%	0.00%	0.70%
General business credits	(2.70%)	(0.10%)	(7.60%)	(0.10%)
Other	0.20%	0.00%	0.40%	0.10%
Total income tax expense	17.90%	23.20%	3.50%	22.10%

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Basic Earnings Per Share:
Net income	$ 11,712	$ (1,975)	$ 10,674	$ 7,285	$ 9,737	$ 17,959
Weighted average shares outstanding (in shares)	16,094,084		14,893,854		16,117,792	13,536,646
Basic earnings per common share (in dollars per share)	$ 0.73		$ 0.72		$ 0.60	$ 1.33
Diluted Earnings Per Share:
Net income	$ 11,712	$ (1,975)	$ 10,674	$ 7,285	$ 9,737	$ 17,959
Weighted average shares outstanding, including all dilutive potential shares (in shares)	16,099,682		14,900,057		16,125,375	13,545,290
Diluted earnings per common share (in dollars per share)	$ 0.73		$ 0.72		$ 0.60	$ 1.33

Regulatory Capital Requiremen_3

Regulatory Capital Requirements and Restrictions on Subsidiary Cash (Details) $ in Thousands	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital	$ 485,309	$ 463,601
Capital to risk weighted assets	0.1172	0.1134
Capital required for capital adequacy	$ 434,970	$ 429,077
Capital required for capital adequacy to risk weighted assets	0.1050	0.1050
Tier one risk based capital	$ 434,207	$ 428,021
Tier one risk based capital to risk weighted assets	0.1048	0.1047
Tier one risk based capital required for capital adequacy	$ 352,118	$ 347,348
Tier one risk based capital required for capital adequacy to risk weighted assets	0.0850	0.0850
Common equity tier one capital	$ 392,532	$ 386,434
Common equity tier one capital to risk weighted assets	9.48%	9.46%
Common equity tier one capital required for capital adequacy	$ 289,980	$ 286,051
Common equity tier one capital required for capital adequacy to risk weighted assets	7.00%	7.00%
Tier one leverage capital	$ 434,207	$ 428,021
Tier one leverage capital to average assets	0.0872	0.0948
Tier one leverage capital required for capital adequacy	$ 199,225	$ 180,529
Tier one leverage capital required for capital adequacy to average assets	0.0400	0.0400
Capital conservation buffer	0.0250	0.0250
Cash reserve deposit required and made	$ 0	$ 24,100
MidWestOne Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital	$ 513,922	$ 482,106
Capital to risk weighted assets	0.1247	0.1183
Capital required for capital adequacy	$ 432,647	$ 427,877
Capital required for capital adequacy to risk weighted assets	0.1050	0.1050
Capital required to be well capitalized	$ 412,045	$ 407,502
Capital required to be well capitalized to risk weighted assets	0.1000	0.1000
Tier one risk based capital	$ 467,154	$ 453,027
Tier one risk based capital to risk weighted assets	0.1134	0.1112
Tier one risk based capital required for capital adequacy	$ 350,238	$ 346,377
Tier one risk based capital required for capital adequacy to risk weighted assets	0.0850	0.0850
Tier one risk based capital required to be well capitalized	$ 329,636	$ 326,002
Tier one risk based capital required to be well capitalized to risk weighted assets	0.0800	0.0800
Common equity tier one capital	$ 467,154	$ 453,027
Common equity tier one capital to risk weighted assets	11.34%	11.12%
Common equity tier one capital required for capital adequacy	$ 288,431	$ 285,251
Common equity tier one capital required for capital adequacy to risk weighted assets	7.00%	7.00%
Common equity tier one risk based capital required to be well capitalized	$ 267,829	$ 264,876
Common equity tier one risk based capital required to be well capitalized to risk weighted assets	6.50%	6.50%
Tier one leverage capital	$ 467,154	$ 453,027
Tier one leverage capital to average assets	0.0939	0.1006
Tier one leverage capital required for capital adequacy	$ 198,967	$ 180,209
Tier one leverage capital required for capital adequacy to average assets	0.0400	0.0400
Tier one leverage capital required to be well capitalized	$ 248,709	$ 231,166
Tier one leverage capital required to be well capitalized to average assets	0.0500	0.0500

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Commitments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Other Commitments [Line Items]
Other commitment	$ 935,056	$ 900,804
Commitments to sell loans
Other Commitments [Line Items]
Other commitment	12,048	5,400
Commitments to extend credit
Other Commitments [Line Items]
Other commitment	892,199	859,212
Standby letters of credit
Other Commitments [Line Items]
Other commitment	$ 30,809	$ 36,192

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jan. 01, 2020
Concentration Risk [Line Items]
Liability for off-balance sheet credit exposures	$ 4,200,000	$ 4,200,000		$ 0
Credit loss expense, off balance sheet credit exposure	$ (1,600,000)	$ 772,000	$ 0
Credit Concentration Risk | Loans Concentration | Commercial real estate
Concentration Risk [Line Items]
Concentration risk, percentage		64.00%
Credit Concentration Risk | Loans Concentration | Agricultural Related Loan Financing Receivable
Concentration Risk [Line Items]
Concentration risk, percentage		8.00%
Credit Concentration Risk | Investment Securities | State and political subdivisions | IOWA
Concentration Risk [Line Items]
Concentration risk, percentage		34.00%
Credit Concentration Risk | Investment Securities | State and political subdivisions | MINNESOTA
Concentration Risk [Line Items]
Concentration risk, percentage		20.00%

Fair Value of Financial Instr_3

Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	$ 1,187,455	$ 785,977
Derivative assets	14,391	1,848
U.S. Government agencies and corporations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	410	441
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	434,046	257,205
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	79,685	43,530
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	313,286	191,855
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	14,391	1,848
Derivative liabilities	18,517	3,242
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	14,391	1,848
Derivative liabilities	18,517	3,242
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative assets	0	0
Derivative liabilities	0	0
Recurring | U.S. Government agencies and corporations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	410	441
Recurring | U.S. Government agencies and corporations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | U.S. Government agencies and corporations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	410	441
Recurring | U.S. Government agencies and corporations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	434,046	257,205
Recurring | State and political subdivisions | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | State and political subdivisions | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	434,046	257,205
Recurring | State and political subdivisions | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	79,685	43,530
Recurring | Mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | Mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	79,685	43,530
Recurring | Mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | Collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	360,028	292,946
Recurring | Collateralized mortgage obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | Collateralized mortgage obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	360,028	292,946
Recurring | Collateralized mortgage obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	313,286	191,855
Recurring | Corporate debt securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		0
Recurring | Corporate debt securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale	$ 313,286	191,855
Recurring | Corporate debt securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt securities available for sale		$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments and Fair Value Measurements - Measured on a Nonrecurring Basis (Details) $ in Thousands	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	$ 965	$ 3,706
Nonrecurring | Collateral dependent impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Collateral dependent impaired loans	8,798	6,749
Nonrecurring | Collateral dependent impaired loans | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Collateral dependent impaired loans	$ 8,798	6,749
Nonrecurring | Collateral dependent impaired loans | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0
Nonrecurring | Collateral dependent impaired loans | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.90
Nonrecurring | Collateral dependent impaired loans | Level 3 | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.31
Nonrecurring | Foreclosed assets, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	$ 965	3,706
Nonrecurring | Foreclosed assets, net | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Foreclosed assets, net	$ 965	$ 3,706
Nonrecurring | Foreclosed assets, net | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.08
Nonrecurring | Foreclosed assets, net | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.47
Nonrecurring | Foreclosed assets, net | Level 3 | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Measurement input	0.27

Fair Value of Financial Instr_5

Fair Value of Financial Instruments and Fair Value Measurements - Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financial assets:
Debt securities available for sale	$ 1,187,455	$ 785,977
Interest receivable	21,082	18,525
FHLB stock	12,858	15,381
Derivative assets	14,391	1,848
Financial liabilities:
Interest-bearing deposits	1,153,697	962,830
Short-term borrowings	162,224	139,349
Finance leases payable	1,162	1,224
Carrying Amount
Financial assets:
Cash and cash equivalents	117,210	73,484
Debt securities available for sale	1,187,455	785,977
Loans held for sale	12,048	5,400
Loans held for investment, net	3,541,395	3,422,187
Interest receivable	21,082	18,525
FHLB stock	12,858
Derivative assets	14,391	1,848
Financial liabilities:
Non-interest bearing deposits	867,637	662,209
Interest-bearing deposits	3,397,798	3,066,446
Short-term borrowings	162,224	139,349
Finance leases payable	1,162	1,224
Federal Home Loan Bank borrowings	108,246	145,700
Junior subordinated notes issued to capital trusts	41,675	41,587
Subordinated debentures	10,890	10,899
Other long-term debt	28,000	32,250
Derivative liabilities	18,517	3,242
Estimated Fair Value
Financial assets:
Cash and cash equivalents	117,210	73,484
Debt securities available for sale	1,187,455	785,977
Loans held for sale	12,401	5,476
Loans held for investment, net	3,597,325	3,427,952
Interest receivable	21,082	18,525
FHLB stock	12,858	15,381
Derivative assets	14,391	1,848
Financial liabilities:
Non-interest bearing deposits	867,637	662,209
Interest-bearing deposits	3,405,414	3,066,427
Short-term borrowings	162,224	139,349
Finance leases payable	1,162	1,224
Federal Home Loan Bank borrowings	111,902	146,913
Junior subordinated notes issued to capital trusts	34,546	39,391
Subordinated debentures	11,123	11,083
Other long-term debt	28,000	32,250
Derivative liabilities	18,517	3,242
Level 1 | Estimated Fair Value
Financial assets:
Cash and cash equivalents	117,210	73,484
Debt securities available for sale	0	0
Interest receivable	0	0
FHLB stock	0	0
Derivative assets	0	0
Financial liabilities:
Non-interest bearing deposits	867,637	662,209
Interest-bearing deposits	2,428,327	2,113,000
Short-term borrowings	162,224	139,349
Finance leases payable	0	0
Federal Home Loan Bank borrowings	0	0
Junior subordinated notes issued to capital trusts	0	0
Subordinated debentures	0	0
Other long-term debt	0	0
Derivative liabilities	0	0
Level 2 | Estimated Fair Value
Financial assets:
Debt securities available for sale	1,187,455	785,977
Loans held for sale	12,401	5,476
Interest receivable	21,082	18,525
FHLB stock	12,858	15,381
Derivative assets	14,391	1,848
Financial liabilities:
Interest-bearing deposits	977,087	953,427
Finance leases payable	1,162	1,224
Federal Home Loan Bank borrowings	111,902	146,913
Junior subordinated notes issued to capital trusts	34,546	39,391
Subordinated debentures	11,123	11,083
Other long-term debt	28,000	32,250
Derivative liabilities	18,517	3,242
Level 3 | Estimated Fair Value
Financial assets:
Loans held for sale	0	0
Loans held for investment, net	3,597,325	3,427,952
Derivative assets	0	0
Financial liabilities:
Finance leases payable	0	0
Subordinated debentures	0	0
Other long-term debt	0	0
Derivative liabilities	$ 0	$ 0

Leases - Assets and Liabilities

Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lease Right-of-Use Assets
Operating lease right-of-use assets	$ 4,067	$ 4,499
Finance lease right-of-use asset	589	637
Total right-of-use assets	4,656	5,136
Lease Liabilities
Operating lease liability	5,036	5,430
Finance lease liability	1,162	1,224
Total lease liabilities	$ 6,198	$ 6,654
Weighted-average remaining lease term
Operating leases	8 years 2 months 19 days	8 years 10 months 24 days
Finance lease	6 years 2 months 1 day	6 years 8 months 1 day
Weighted-average discount rate
Operating leases	3.58%	3.78%
Finance lease	8.89%	8.89%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities	us-gaap:OtherLiabilities
Finance Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebt	us-gaap:LongTermDebt

Leases - Lease Cost (Details)

Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 409	$ 257	$ 728	$ 450
Variable lease cost	109	13	147	40
Short-term lease cost	0	0	0	0
Interest on lease liabilities	26	28	52	57
Amortization of right-of-use assets	24	24	48	48
Net lease cost	568	322	975	595
Operating cash flows from operating leases	651	455	1,154	838
Operating cash flows from finance lease	26	41	52	83
Finance cash flows from finance lease	31	28	62	55
Right-of-use assets obtained in exchange for new operating lease liabilities	94	1,599	94	1,599
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 0	$ 0	$ 0	$ 0

Leases - Maturity Schedule (Det

Leases - Maturity Schedule (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Finance Leases
December 31, 2020	$ 116
December 31, 2021	235
December 31, 2022	240
December 31, 2023	245
December 31, 2024	250
Thereafter	426
Total undiscounted lease payment	1,512
Amounts representing interest	(350)
Finance lease liability	1,162	$ 1,224
Operating Leases
December 31, 2020	554
December 31, 2021	1,093
December 31, 2022	993
December 31, 2023	932
December 31, 2024	702
Thereafter	2,138
Total undiscounted lease payment	6,412
Amounts representing interest	(1,376)
Operating lease liability	$ 5,036	$ 5,430

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 28, 2020	Jul. 28, 2020	Jul. 29, 2020	Jun. 30, 2020
Subordinated debt
Subsequent Event
Interest rate				6.50%
Forecast
Subsequent Event
Reduction in operating expenses	$ 360
Subsequent event | Unsecured line of credit
Subsequent Event
Extinguishment of debt, amount		$ 10,000
Subsequent event | 5.75% Fixed to floating subordinated notes | Subordinated debt
Subsequent Event
Interest rate		5.75%
Subsequent event | 5.75% Fixed to floating subordinated notes | Private placement | Subordinated debt
Subsequent Event
Sale of equity		$ 65,000
Common Stock | Subsequent event
Subsequent Event
Dividends payable (in dollars per share)			$ 0.22

Uncategorized Items - mofg-2020

Label	Element	Value
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset	us-gaap_OperatingLeaseRightOfUseAsset	$ 2,892,000
Operating Lease, Right-of-Use Asset	us-gaap_OperatingLeaseRightOfUseAsset	0
Operating Lease, Liability	us-gaap_OperatingLeaseLiability	2,892,000
Operating Lease, Liability	us-gaap_OperatingLeaseLiability	$ 0