Heartland Financial USA (HTLF) 10-Q 6 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 04, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	HEARTLAND FINANCIAL USA INC
Entity Central Index Key	920,112
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		20,627,937

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks	$ 111,909	$ 64,150
Federal funds sold and other short-term investments	7,813	9,721
Cash and cash equivalents	119,722	73,871
Time deposits in other financial institutions	2,355	2,605
Securities:
Available for sale, at fair value (cost of $1,308,488 at June 30, 2015, and $1,396,794 at December 31, 2014)	1,315,699	1,401,868
Held to maturity, at cost (fair value of $292,564 at June 30, 2015, and $296,768 at December 31, 2014)	283,258	284,587
Other investments, at cost	20,455	20,498
Loans held for sale	105,898	70,514
Loans and leases receivable:
Held to maturity	4,449,823	3,876,745
Loans covered by loss share agreements	0	1,258
Allowance for loan and lease losses	(45,614)	(41,449)
Loans and leases receivable, net	4,404,209	3,836,554
Premises, furniture and equipment, net	143,423	130,713
Other real estate, net	16,983	19,016
Goodwill	54,162	35,583
Other intangible assets, net	45,226	33,932
Cash surrender value on life insurance	96,693	82,638
Other assets	108,924	59,433
TOTAL ASSETS	6,717,007	6,051,812
Deposits:
Demand	1,536,355	1,295,193
Savings	2,816,666	2,687,493
Time	964,248	785,336
Total deposits	5,317,269	4,768,022
Short-term borrowings	477,918	330,264
Other borrowings	296,594	395,705
Accrued expenses and other liabilities	46,020	61,504
TOTAL LIABILITIES	6,137,801	5,555,495
STOCKHOLDERS' EQUITY:
Common stock (par value $1 per share; authorized 30,000,000 shares at June 30, 2015, and 25,000,000 shares at December 31, 2014; issued 20,616,068 shares at June 30, 2015, and 18,511,125 shares at December 31, 2014)	20,616	18,511
Capital surplus	148,789	95,816
Retained earnings	325,106	298,764
Accumulated other comprehensive income	3,059	1,528
Treasury stock at cost (1,743 shares at June 30, 2015 and 0 at December 31, 2014)	(62)	0
TOTAL STOCKHOLDERS' EQUITY	579,206	496,317
TOTAL LIABILITIES AND EQUITY	6,717,007	6,051,812
Preferred Stock [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series A Preferred Stock [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series C Preferred Stock [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	$ 81,698	$ 81,698

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Cost of available for sale securities	$ 1,308,488	$ 1,396,794
Fair value of held to maturity securities	$ 292,564	$ 296,768
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized	30,000,000	25,000,000
Common stock, shares issued	20,616,068	18,511,125
Treasury stock shares	1,743	0
Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	20,604	20,604
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series A Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	16,000	16,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series C Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	81,698	81,698
Preferred stock, shares issued	81,698	81,698
Preferred stock, shares outstanding	81,698	81,698
Preferred stock, liquidation value	$ 81,700	$ 81,700

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
INTEREST INCOME:
Interest and fees on loans and leases	$ 55,824	$ 48,101	$ 108,873	$ 94,485
Interest on securities:
Taxable	6,739	7,447	13,871	15,208
Nontaxable	2,874	3,708	5,790	6,830
Interest on federal funds sold	1	0	2	0
Interest on interest bearing deposits in other financial institutions	3	7	7	14
TOTAL INTEREST INCOME	65,441	59,263	128,543	116,537
INTEREST EXPENSE:
Interest on deposits	3,819	4,577	7,991	9,355
Interest on short-term borrowings	212	202	410	428
Interest on other borrowings (includes $559 and $573 of interest expense related to derivatives reclassified from accumulated other comprehensive income for the three months ended June 30, 2015 and 2014, respectively, and $1,123 and $1,094 of interest expense related to derivatives reclassified from accumulated other comprehensive income for the six months ended June 30, 2015 and 2014, respectively)	3,766	3,685	8,568	7,343
TOTAL INTEREST EXPENSE	7,797	8,464	16,969	17,126
NET INTEREST INCOME	57,644	50,799	111,574	99,411
Provision for loan and lease losses	5,674	2,751	7,345	9,082
NET INTEREST INCOME AFTER PROVISION FOR LOAN AND LEASE LOSSES	51,970	48,048	104,229	90,329
NONINTEREST INCOME:
Service charges and fees	5,900	5,254	11,304	10,150
Loan servicing income	1,163	1,393	2,204	2,904
Trust fees	3,913	3,343	7,544	6,553
Brokerage and insurance commissions	916	1,158	2,003	2,281
Securities gains, net (includes $3,110 and $854 of net security gains reclassified from accumulated other comprehensive income for the three months ended June 30, 2015 and 2014, respectively, and $7,463 and $1,635 of net security gains reclassified from accumulated other comprehensive income for six months ended June 30, 2015 and 2014, respectively)	3,110	854	7,463	1,635
Gain (loss) on trading account securities	0	0	0	(38)
Net gains on sale of loans held for sale	14,599	8,796	28,341	15,175
Income on bank owned life insurance	459	339	983	702
Other noninterest income	601	398	1,482	1,023
TOTAL NONINTEREST INCOME	30,661	21,535	61,324	40,385
NONINTEREST EXPENSES:
Salaries and employee benefits	36,851	32,563	73,489	64,882
Occupancy	4,028	3,984	8,287	8,034
Furniture and equipment	2,176	2,085	4,282	3,975
Professional fees	5,249	4,214	11,293	8,740
FDIC insurance assessments	899	980	1,855	1,960
Advertising	1,333	1,511	2,514	2,699
Intangible assets amortization	715	591	1,346	1,215
Other real estate and loan collection expenses	753	518	1,218	1,570
Loss on sales/valuations of assets, net	1,509	1,379	1,862	1,542
Other noninterest expenses	9,969	6,834	16,950	12,580
TOTAL NONINTEREST EXPENSES	63,482	54,659	123,096	107,197
INCOME BEFORE INCOME TAXES	19,149	14,924	42,457	23,517
Income taxes (includes $952 and $105 of income tax expense reclassified from accumulated other comprehensive income for the three months ended June 30, 2015 and 2014, respectively, and $2,365 and $202 of income tax expense reclassified from accumulated other comprehensive income for the six months ended June 30, 2015 and 2014, respectively)	3,989	4,150	11,588	5,853
NET INCOME	15,160	10,774	30,869	17,664
Preferred dividends and discount	(204)	(204)	(408)	(408)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 14,956	$ 10,570	$ 30,461	$ 17,256
EARNINGS PER COMMON SHARE - BASIC (in dollars per share)	$ 0.73	$ 0.57	$ 1.49	$ 0.94
EARNINGS PER COMMON SHARE - DILUTED (in dollars per share)	0.72	0.56	1.47	0.92
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.10	$ 0.10	$ 0.20	$ 0.20

Consolidated Statements of Inc5

Consolidated Statements of Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest on other borrowings	$ 3,766	$ 3,685	$ 8,568	$ 7,343
Securities gains, net	3,110	854	7,463	1,635
Income taxes	3,989	4,150	11,588	5,853
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Derivatives [Member]
Interest on other borrowings	559	573	1,123	1,094
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Securities gains, net	3,110	854	7,463	1,635
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Income taxes	$ 952	$ 105	$ 2,365	$ 202

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 15,160	$ 10,774	$ 30,869	$ 17,664
Securities:
Net change in unrealized gain (loss) on securities	(2,764)	9,772	8,714	30,682
Reclassification adjustment for net gains realized in net income	(3,110)	(854)	(7,463)	(1,635)
Net change in non-credit related other than temporary impairment	24	24	48	48
Income taxes	2,361	(3,523)	(498)	(11,482)
Other comprehensive income (loss) on securities	(3,489)	5,419	801	17,613
Derivatives used in cash flow hedging relationships:
Net change in unrealized loss on derivatives	1,509	(936)	55	(1,075)
Reclassification adjustment for net loss on derivatives realized in net income	559	573	1,123	1,094
Income taxes	(775)	135	(448)	(7)
Other comprehensive income (loss) on cash flow hedges	1,293	(228)	730	12
Other comprehensive income (loss)	(2,196)	5,191	1,531	17,625
TOTAL COMPREHENSIVE INCOME	$ 12,964	$ 15,965	$ 32,400	$ 35,289

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 30,869	$ 17,664
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,174	8,547
Provision for loan and lease losses	7,345	9,082
Net amortization of premium on securities	14,645	12,497
Securities gains, net	(7,463)	(1,635)
Decrease in trading account securities	0	1,801
Stock based compensation	1,908	1,831
Write downs and losses on repossessed assets, net	924	921
Loans originated for sale	(724,081)	(402,605)
Proceeds on sales of loans held for sale	710,753	377,272
Net gains on sale of loans held for sale	(21,328)	(15,175)
Decrease in accrued interest receivable	1,478	616
(Increase) decrease in prepaid expenses	100	(698)
Decrease in accrued interest payable	(867)	(908)
Capitalization of servicing rights	(7,156)	(3,344)
Write downs and losses on sales of assets, net	938	0
Other, net	(10,275)	1,644
NET CASH PROVIDED BY OPERATING ACTIVITIES	8,964	7,510
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of securities available for sale	526,026	509,891
Proceeds from the sale of other investments	10,336	7,356
Proceeds from the maturity of and principal paydowns on securities available for sale	86,625	72,651
Proceeds from the maturity of and principal paydowns on securities held to maturity	646	619
Proceeds from the maturity of and principal paydowns on time deposits in other financial institutions	250	250
Purchase of securities available for sale	(529,670)	(349,740)
Purchase of securities held to maturity	0	(20,944)
Purchase of other investments	(9,009)	(6,445)
Net increase in loans and leases	(184,039)	(212,384)
Purchase of bank owned life insurance policies	(1,100)	0
Capital expenditures	(3,984)	(4,205)
Net cash and cash equivalents received in acquisition	7,103	0
Proceeds from the sale of equipment	15	0
Proceeds on sale of OREO and other repossessed assets	5,402	10,663
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	(91,399)	7,712
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in demand deposits and savings accounts	64,348	4,664
Net increase (decrease) in time deposit accounts	50,980	(29,681)
Net increase in short-term borrowings	86,718	20,738
Proceeds from short term FHLB advances	248,100	170,000
Repayments of short term FHLB advances	(212,000)	(179,000)
Proceeds from other borrowings	29,000	5,000
Repayments of other borrowings	(134,389)	(25,394)
Purchase of treasury stock	(2,173)	(608)
Proceeds from issuance of common stock	1,578	429
Excess tax benefits on exercised stock options	651	119
Dividends paid	(4,527)	(4,099)
NET CASH PROVIDED (USED) BY FINANCING ACTIVITIES	128,286	(37,832)
Net increase (decrease) in cash and cash equivalents	45,851	(22,610)
Cash and cash equivalents at beginning of year	73,871	125,270
CASH AND CASH EQUIVALENTS AT END OF PERIOD	119,722	102,660
Supplemental disclosures:
Cash paid for income/franchise taxes	6,969	1,641
Cash paid for interest	20,836	18,034
Loans transferred to OREO	4,046	6,097
Purchases of securities available for sale, accrued, not paid	0	11,175
Sales of securities available for sale, accrued, not settled	34,129	0
Stock consideration granted for acquisition	$ 53,052	$ 0

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at beginning of period at Dec. 31, 2013	$ 439,460	$ 81,698	$ 18,399	$ 91,632	$ 265,067	$ (17,336)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	35,289				17,664	17,625
Cash dividends declared:
Preferred	(408)				(408)
Common	(3,691)				(3,691)
Purchase of shares of common stock	(608)						(608)
Issuance of shares of common stock	548		69	(129)			608
Commitments to issue common stock	1,831			1,831
Balance at end of period at Jun. 30, 2014	472,421	81,698	18,468	93,334	278,632	289	0
Balance at beginning of period at Dec. 31, 2014	496,317	81,698	18,511	95,816	298,764	1,528	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	32,400				30,869	1,531
Cash dividends declared:
Preferred	(408)				(408)
Common	(4,119)				(4,119)
Purchase of shares of common stock	(2,173)						(2,173)
Issuance of shares of common stock	55,281		2,105	51,065			2,111
Commitments to issue common stock	1,908			1,908
Balance at end of period at Jun. 30, 2015	$ 579,206	$ 81,698	$ 20,616	$ 148,789	$ 325,106	$ 3,059	$ (62)

Consolidated Statements of Cha9

Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Cash dividends per share preferred stock (in dollars per share)	$ 5	$ 5
Cash dividends per share common stock (in dollars per share)	$ 0.20	$ 0.20
Shares of common stock purchased	36,176	23,350
Shares of common stock issued	2,139,376	91,840

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION The interim unaudited consolidated financial statements contained herein should be read in conjunction with the audited consolidated financial statements and accompanying notes to the consolidated financial statements for the fiscal year ended December 31, 2014, included in the Form 10-K of Heartland Financial USA, Inc. ("Heartland") filed with the Securities and Exchange Commission ("SEC") on March 13, 2015 . Accordingly, foot note disclosures which would substantially duplicate the disclosure contained in the audited consolidated financial statements have been omitted. The financial information of Heartland included herein has been prepared in accordance with U.S. generally accepted accounting principles for interim financial reporting and has been prepared pursuant to the rules and regulations for reporting on Form 10-Q and Rule 10-01 of Regulation S-X. Such information reflects all adjustments (consisting of normal recurring adjustments), that are, in the opinion of management, necessary for a fair presentation of the financial position and results of operations for the periods presented. The results of the interim period ended June 30, 2015, are not necessarily indicative of the results expected for the year ending December 31, 2015. Earnings Per Share Basic earnings per share is determined using net income available to common stockholders and weighted average common shares outstanding. Diluted earnings per share is computed by dividing net income available to common stockholders by the weighted average common shares and assumed incremental common shares issued. Amounts used in the determination of basic and diluted earnings per share for the six-month periods ended June 30, 2015 and 2014, are shown in the table below: Three Months Ended June 30, (Dollars and number of shares in thousands, except per share data) 2015 2014 Net income attributable to Heartland $ 15,160 $ 10,774 Preferred dividends and discount (204 ) (204 ) Net income available to common stockholders $ 14,956 $ 10,570 Weighted average common shares outstanding for basic earnings per share 20,599 18,458 Assumed incremental common shares issued upon exercise of stock options and non-vested restricted stock units 278 289 Weighted average common shares for diluted earnings per share 20,877 18,747 Earnings per common share — basic $ 0.73 $ 0.57 Earnings per common share — diluted $ 0.72 $ 0.56 Number of antidilutive common stock equivalents excluded from diluted earnings per share computation — 95 Six Months Ended June 30, (Dollars and number of shares in thousands, except per share data) 2015 2014 Net income attributable to Heartland $ 30,869 $ 17,664 Preferred dividends and discount (408 ) (408 ) Net income available to common stockholders $ 30,461 $ 17,256 Weighted average common shares outstanding for basic earnings per share 20,408 18,448 Assumed incremental common shares issued upon exercise of stock options and non-vested restricted stock units 274 291 Weighted average common shares for diluted earnings per share 20,682 18,739 Earnings per common share — basic $ 1.49 $ 0.94 Earnings per common share — diluted $ 1.47 $ 0.92 Number of antidilutive common stock equivalents excluded from diluted earnings per share computation — 95 Stock-Based Compensation Heartland may grant, through its Nominating and Compensation Committee (the "Compensation Committee"), non-qualified and incentive stock options, stock appreciation rights, stock awards, restricted stock, restricted stock units and cash incentive awards, under its 2012 Long-Term Incentive Plan (the "Plan"). The Plan, which was approved by stockholders in May 2012 and replaced Heartland's 2005 Long-Term Incentive Plan with respect to grants after such approval, reserved 265,153 shares of common stock at June 30, 2015, for issuance under future awards that may be granted under the Plan to employees and directors of, and service providers to, Heartland or its subsidiaries. Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 718, " Compensation-Stock Compensation " requires the measurement of the cost of employee services received in exchange for an award of equity instruments based upon the fair value of the award on the grant date. The cost of the award is based upon its fair value estimated on the date of grant and recognized in the consolidated statements of income over the vesting period of the award. The fair market value of restricted stock and restricted stock units is based on the fair value of the underlying shares of common stock on the date of grant. The fair value of stock options is estimated on the date of grant using the Black-Scholes model. The amount of tax benefit related to the exercise, vesting, and forfeiture of equity-based awards reflected in additional paid-in-capital, not taxes payable, was $651,000 and $ 119,000 during the six months ended June 30, 2015 and 2014, respectively. Restricted Stock Units The Plan permits the Compensation Committee to grant restricted stock units ("RSUs"). On January 20, 2015, the Compensation Committee granted time-based RSUs with respect to 78,220 shares of common stock, and on March 11, 2014 , the Compensation Committee granted time-based RSUs with respect to 67,190 shares of common stock to selected officers. The time-based RSUs, which represent the right, without payment, to receive shares of Heartland common stock at a specified date in the future based on specific vesting conditions, vest over five years in three equal installments on the third, fourth and fifth anniversaries of the grant date, will be settled in common stock upon vesting, and will not be entitled to dividends until vested. The time-based RSUs vest upon a "qualified retirement" (as defined in the RSU agreement), and the retiree is required to sign a non-solicitation and non-compete agreement as a condition to vesting. In addition to the time-based RSUs referenced in the preceding paragraph, the Compensation Committee granted performance-based RSUs with respect to 39,075 shares of common stock on March 10, 2015, and performance-based RSUs with respect to 32,645 shares of common stock on March 11, 2014 , to Heartland executives and subsidiary presidents. These performance-based RSUs vest based first on performance measures tied to Heartland's earnings and loans on December 31, 2015, and December 31, 2014, respectively, and then on time-based vesting conditions. For the grants awarded in 2015, the portion of the RSUs earned based on performance vest on December 31, 2017, and for the grants awarded in 2014 , the portion of the RSUs earned based on performance vest on December 31, 2016 , subject to employment on the respective vesting dates. The Compensation Committee also grants RSUs under the Plan to directors as part of their compensation, to new management level employees at commencement of employment, and to other employees and service providers as incentives. During the six months ended June 30, 2015, and June 30, 2014, 22,648 and 31,525 RSUs, respectively, were granted to directors and new employees. A summary of the status of the RSUs as of June 30, 2015 and 2014, and changes during the six months ended June 30, 2015 and 2014, follows: 2015 2014 Shares Weighted-Average Grant Date Fair Value Shares Weighted-Average Grant Date Fair Value Outstanding at January 1 396,555 $ 21.48 353,070 $ 18.48 Granted 139,943 28.90 131,235 26.69 Vested (151,681 ) 17.98 (73,224 ) 16.65 Forfeited (11,198 ) 25.14 (3,901 ) 19.10 Outstanding at June 30 373,619 $ 25.55 407,180 $ 21.53 Total compensation costs recorded for RSUs were $1.9 million and $1.8 million for the six-month periods ended June 30, 2015 and 2014. As of June 30, 2015 , there were $4.6 million of total unrecognized compensation costs related to the 2005 and 2012 Long-Term Incentive Plans for RSUs which are expected to be recognized through 2019. Options Although the Plan provides authority to the Compensation Committee to grant stock options, no options were granted during the first six months of 2015 and 2014. Prior to 2009, options were typically granted annually with an expiration date ten years after the date of grant. Vesting was generally over a five -year service period with portions of a grant becoming exercisable at three years, four years, and five years after the date of grant. A summary of the status of the stock options as of June 30, 2015 and 2014, and changes during the six months ended June 30, 2015 and 2014, follows: 2015 2014 Shares Weighted-Average Exercise Price Shares Weighted-Average Exercise Price Outstanding at January 1 215,851 $ 23.85 261,936 $ 23.60 Granted — — — — Exercised (56,650 ) 22.85 (5,000 ) 19.13 Forfeited (2,250 ) 23.88 (6,500 ) 26.39 Outstanding at June 30 156,951 $ 24.18 250,436 $ 23.62 Options exercisable at June 30 156,951 $ 24.18 250,436 $ 23.62 At June 30, 2015 , the vested options totale d 156,951 shares with a weighted average exercise price of $ 24.18 per share and a weighted average remaining contractual life of 1.68 years. The intrinsic value (the difference between the market price and the aggregate exercise price) for the vested options as of June 30, 2015 , was $2.0 million . The intrinsic value for the total of all options exercised during the six months ended June 30, 2015 , was $508,000 . The exercise price of stock options granted is established by the Compensation Committee, but the exercise price for the stock options may not be less than the fair market value of the shares on the date that the option is granted or, if greater, the par value of a share of stock. Each option granted is exercisable in full at any time or from time to time, subject to vesting provisions, as determined by the Compensation Committee and as provided in the option agreement, but such time may not exceed ten years from the grant date. Cash received from options exercised was $ 1.3 million for the six months ended June 30, 2015 , and $96,000 for the six months ended June 30, 2014. Total compensation costs recorded for options were $0 for both six-month periods ended June 30, 2015 and 2014. There are no unrecorded compensation costs related to options at June 30, 2015. Subsequent Events Heartland has no subsequent events requiring recognition as of June 30, 2015, or disclosure through the filing date of this quarterly report on Form 10-Q with the SEC. Effect of New Financial Accounting Standards In January 2014, the FASB issued ASU 2014-01, " Accounting for Investments in Qualified Affordable Housing Projects ." The amendments in ASU 2014-01 to Topic 323, " Equity Investments and Joint Ventures ," provide guidance on accounting for investments by a reporting entity in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for the low-income housing tax credit. The amendments permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefit received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2014, and should be applied retrospectively to all periods presented. Heartland elected to use the proportional amortization method for equity investments in qualified affordable housing projects that meet the conditions specified in ASU-2014-01. Heartland adopted this standard on January 1, 2015, and the adoption did not have a material impact on the results of operations, financial position, and liquidity. In January 2014, the FASB issued ASU 2014-04, " Receivables-Troubled Debt Restructurings by Creditors: Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans Upon Foreclosure. " The amendments in ASU 2014-04 clarify that an in-substance foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (i) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (ii) the borrower conveying all interest in the residential real estate property to the creditor to satisfy the loan through completion of a deed in lieu of foreclosure or similar legal agreement. ASU 2014-04 also requires disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in loans collateralized by residential real estate property that are in the process of foreclosure. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2014, with early adoption permitted. Once adopted, an entity can elect either (i) a modified retrospective transition method or (ii) a prospective transition method. The modified retrospective transition method is applied by means of a cumulative-effect adjustment to residential mortgage loans and foreclosed residential real estate properties existing as of the beginning of the period for which the amendments of ASU 2014-04 are effective, with real estate reclassified to loans measured at the carrying value of the real estate at the date of adoption and loans reclassified to real estate measured at the lower of net carrying value of the loan or the fair value of the real estate less costs to sell at the date of adoption. The prospective transition method is applied by means of applying the amendments of ASU 2014-04 to all instances of receiving physical possession of residential real estate properties that occur after the date of adoption. Heartland adopted this standard on January 1, 2015, and the adoption did not have a material impact on the results of operations, financial position, and liquidity. As of June 30, 2015, Heartland had not received possession of any residential real estate properties that meet the disclosure requirements. In May 2014, the FASB issued ASU 2014-09, " Revenue from Contracts with Customers ." The amendment clarifies the principles for recognizing revenue and develops a common revenue standard. The amendment outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” In applying the revenue model to contracts within its scope, an entity should apply the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) the entity satisfies a performance obligation. The amendment applies to all contracts with customers except those that are within the scope of other topics in the FASB Codification. The standard also requires significantly expanded disclosures about revenue recognition. The amendment is effective for annual reporting periods beginning after December 15, 2017 (including interim reporting periods within those periods). Early application is not permitted. Heartland intends to adopt the accounting standard during the first quarter of 2018, as required, and is currently evaluating the impact on its results of operations, financial position, and liquidity. In August 2014, the FASB issued ASU 2014-14, " Receivables-Troubled Debt Restructurings by Creditors: Classification of Certain Government-Guaranteed Mortgage Loans Upon Foreclosure." The amendment clarifies how creditors are to classify certain government-guaranteed mortgage loans upon foreclosure. The amendment requires that a mortgage loan be derecognized and a separate other receivable be recognized upon foreclosure if the following conditions are met: (1) the loan has a government guarantee that is not separate from the loan before foreclosure, and (2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under the claim, and (3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured on the amount of the loan balance (principal and interest) expected to be recovered for the guarantor. This amendment is effective for annual reporting periods, and interim reporting periods within those years, beginning after December 15, 2014, with early adoption permitted. Heartland adopted this standard on January 1, 2015, and the adoption did not have an impact on the results of operations, financial position, and liquidity. In January 2015, the FASB issued ASU 2015-01, " Income Statement-Extraordinary and Unusual Items ." The amendment eliminates from U.S. GAAP the concept of extraordinary items. Presently, an event or transaction is presumed to be an ordinary and usual activity of the reporting entity unless evidence clearly supports its classification as an extraordinary item. If an event or transaction meets the criteria for extraordinary classification, an entity is required to segregate the extraordinary item from the results of ordinary operations and show the item separately in the income statement, net of tax, after income from continuing operations. This amended guidance will prohibit separate disclosure of extraordinary items in the income statement. This amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Entities may apply the amendment prospectively or retrospectively to all prior periods presented in the financial statements. Early adoption is permitted provided that the guidance is applied from the beginning of the fiscal year of adoption. Heartland does not expect the adoption of this standard to have a material impact on the results of operations, financial position, and liquidity. In April 2015, the FASB issued ASU 2015-03, " Interest-Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs. " The amendment intends to simplify the presentation of debt issuance costs and more closely align the presentation of debt issuance costs under U.S. GAAP with the presentation under comparable International Financial Reporting Standards. The cost of issuing debt will no longer be recorded as a separate asset, except when incurred before receipt of the funding from the associated debt liability. Debt issuance costs related to a recognized debt liability are to be presented on the balance sheet as a direct reduction from the debt liability, similar to the presentation of debt premiums or discounts. The costs will continue to be amortized to interest expense using the effective interest method. This amendment is effective for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The ASU requires retrospective application to all prior periods presented in the financial statements. Heartland adopted this standard effective March 31, 2015, at which time $550,000 was reclassified from other assets to other borrowings on the consolidated balance sheet for all periods presented. The adoption of this standard did not have a material impact on the results of operations, financial position, and liquidity.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS On May 28, 2015, Heartland entered into a definitive merger agreement with Premier Valley Bank in Fresno, California. Under the terms of the agreement, Premier Valley Bank shareholders will receive approximately $95.0 million or $7.73 per share of common stock in the merger, and may elect to receive this payment in shares of Heartland common stock or cash, subject to proration so that 70% of the total payment is in Heartland common stock and 30% in cash. As of June 30, 2015, Premier Valley Bank had assets of approximately $655.0 million , loans of approximately $413.0 million and deposits of approximately $573.0 million . Upon closing of the transaction, Premier Valley Bank will become a wholly-owned subsidiary of Heartland and will continue to operate under its current name and management team as Heartland's tenth state-chartered bank. On May 14, 2015, Heartland entered into a definitive merger agreement with First Scottsdale Bank, N.A., in Scottsdale, Arizona. Under the terms of the agreement, Heartland will acquire First Scottsdale Bank, N.A., in an all cash transaction valued at approximately $17.7 million . Simultaneous with the closing of the transaction, First Scottsdale Bank, N.A., will be merged into Heartland's Arizona Bank & Trust subsidiary. As of June 30, 2015, First Scottsdale Bank, N.A., had total assets of approximately $96.0 million , including $63.0 million of loans outstanding, and deposits of $79.0 million . On April 15, 2015, Heartland entered into a definitive merger agreement with Community Bancorporation of New Mexico, Inc., parent company of Community Bank in Santa Fe, New Mexico. Under the terms of the agreement, Heartland will acquire Community Bancorporation in an all cash transaction valued at approximately $11.1 million . Simultaneous with the closing of the transaction, Community Bank will be merged into Heartland's New Mexico Bank & Trust subsidiary. As of June 30, 2015, Community Bank had total assets of approximately $175.0 million , including $109.0 million of loans outstanding, and $146.0 million of deposits. On January 16, 2015, Heartland completed the acquisition of Community Banc-Corp of Sheboygan, Inc., parent company of Community Bank & Trust in Sheboygan, Wisconsin. Under the terms of the agreement, the aggregate purchase price was based upon 155% of the December 31, 2014, adjusted tangible book value, as defined in the merger agreement, of Community Banc-Corp of Sheboygan, Inc. The purchase price was approximately $ 53.1 million, which was paid by delivery of 1,970,720 shares of Heartland common stock. The transaction included, at fair value, total assets of $506.8 million , including loans of $395.0 million and including deposits of $433.9 million . Simultaneous with the close of the transaction, Community Bank & Trust merged into Heartland’s Wisconsin Bank & Trust subsidiary. The transaction was a tax-free reorganization with respect to the stock consideration received by the stockholders of Community Banc-Corp of Sheboygan, Inc. The assets and liabilities of Community Banc-Corp of Sheboygan, Inc. were recorded on the consolidated balance sheet at the estimated fair value on the acquisition date. The following table represents, in thousands, the amounts recorded on the consolidated balance sheet as of January 16, 2015: As of January 16, 2015 Fair value of consideration paid Common Stock $ 53,052 Cash 6 Total consideration paid 53,058 Fair value of assets acquired Cash and due from banks 7,109 Securities: Securities available for sale 52,976 Other securities 1,284 Loans held for sale 728 Loans held to maturity 395,007 Premises, furniture and equipment, net 13,954 Other real estate, net 346 Other intangible assets, net 10,295 Other assets 25,066 Total assets 506,765 Fair value of liabilities assumed Deposits 433,919 Short term borrowings 24,836 Other borrowings 6,097 Other liabilities 7,434 Total liabilities assumed 472,286 Fair value of net assets acquired 34,479 Goodwill resulting from acquisition $ 18,579 Heartland recognized goodwill of $18.6 million in conjunction with the acquisition of Community Banc-Corp of Sheboygan, Inc., which is calculated as the excess of both the consideration exchanged and the liabilities assumed as compared to the fair value of identifiable assets acquired. Goodwill resulted from expected operational synergies, increased market presence, cross-selling opportunities, and expanded business lines. See Note 6 for further information on goodwill. Pro Forma Information: The following pro forma information presents the results of operations for the years ended December 31, 2014, and December 31, 2013, as if the Community Banc-Corp of Sheboygan, Inc. acquisition occurred on January 1, 2013: (Dollars in thousands, except per share data) For the Years Ended December 31, 2014 December 31, 2013 Net interest income $ 220,358 $ 179,001 Net income $ 44,710 $ 42,105 Basic earnings per share $ 2.19 $ 2.20 Diluted earnings per share $ 2.16 $ 2.17 The above pro forma results are presented for illustrative purposes and are not intended to represent or be indicative of the actual results of operations of the merged companies that would have been achieved had the acquisition occurred on January 1, 2013, nor are they intended to represent or be indicative of future results of operations. The pro forma results do not include expected operating cost savings as a result of the acquisition. These pro forma results require significant estimates and judgments particularly as it relates to valuation and accretion of income associated with the acquired loans. Heartland incurred $1.7 million of pre-tax merger related expenses in 2014 and 2015. The merger expenses are reflected on the consolidated statement of income for the applicable period and are reported primarily in the categories of salaries and employee benefits, professional fees and other noninterest expenses. Acquired loans were preliminarily recorded at fair value based on a discounted cash flow valuation methodology that considers, among other things, projected default rates, loss given defaults, and recovery rates. No allowance for credit losses was carried over from the acquisition. The balance of nonaccrual loans at acquisition date was $5.8 million .

Securities

Securities	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Securities	SECURITIES The amortized cost, gross unrealized gains and losses, and estimated fair values of securities available for sale as of June 30, 2015 , and December 31, 2014 , are summarized in the table below, in thousands: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value June 30, 2015 U.S. government corporations and agencies $ 15,701 $ 101 $ — $ 15,802 Mortgage-backed securities 1,101,835 15,575 (9,360 ) 1,108,050 Obligations of states and political subdivisions 185,167 2,611 (1,777 ) 186,001 Corporate debt securities 740 — — 740 Total debt securities 1,303,443 18,287 (11,137 ) 1,310,593 Equity securities 5,045 61 — 5,106 Total $ 1,308,488 $ 18,348 $ (11,137 ) $ 1,315,699 December 31, 2014 U.S. government corporations and agencies $ 24,010 $ 98 $ (15 ) $ 24,093 Mortgage-backed securities 1,219,305 11,929 (11,968 ) 1,219,266 Obligations of states and political subdivisions 148,450 5,304 (328 ) 153,426 Corporate debt securities — — — — Total debt securities 1,391,765 17,331 (12,311 ) 1,396,785 Equity securities 5,029 54 — 5,083 Total $ 1,396,794 $ 17,385 $ (12,311 ) $ 1,401,868 At both June 30, 2015 , and December 31, 2014 , the amortized cost of the available for sale securities is net of $184,000 of credit related other-than-temporary impairment ("OTTI"). The amortized cost, gross unrealized gains and losses and estimated fair values of held to maturity securities as of June 30, 2015 , and December 31, 2014 , are summarized in the table below, in thousands: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value June 30, 2015 Mortgage-backed securities $ 5,555 $ 266 $ (816 ) $ 5,005 Obligations of states and political subdivisions 277,703 11,393 (1,537 ) 287,559 Total $ 283,258 $ 11,659 $ (2,353 ) $ 292,564 December 31, 2014 Mortgage-backed securities $ 5,734 $ 217 $ (667 ) $ 5,284 Obligations of states and political subdivisions 278,853 13,576 (945 ) 291,484 Total $ 284,587 $ 13,793 $ (1,612 ) $ 296,768 At June 30, 2015 , the amortized cost of the held to maturity securities is net of $ 797,000 of credit related OTTI and $ 374,000 of non-credit related OTTI. At December 31, 2014 , the amortized cost of the held to maturity securities was net of $ 797,000 of credit related OTTI and $ 422,000 of non-credit related OTTI. Approximately 84% of Heartland's mortgage-backed securities are issuances of government-sponsored enterprises. The amortized cost and estimated fair value of debt securities available for sale at June 30, 2015 , by contractual maturity are as follows, in thousands. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without penalties. Amortized Cost Estimated Fair Value Due in 1 year or less $ 3,378 $ 3,394 Due in 1 to 5 years 22,352 22,274 Due in 5 to 10 years 40,102 40,078 Due after 10 years 135,776 136,797 Total debt securities 201,608 202,543 Mortgage-backed securities 1,101,835 1,108,050 Equity securities 5,045 5,106 Total investment securities $ 1,308,488 $ 1,315,699 The amortized cost and estimated fair value of debt securities held to maturity at June 30, 2015 , by contractual maturity are as follows, in thousands. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without penalties. Amortized Cost Estimated Fair Value Due in 1 year or less $ 3,092 $ 3,153 Due in 1 to 5 years 13,827 14,462 Due in 5 to 10 years 59,866 62,268 Due after 10 years 200,918 207,676 Total debt securities 277,703 287,559 Mortgage-backed securities 5,555 5,005 Total investment securities $ 283,258 $ 292,564 Gross gains and losses realized related to the sales of securities available for sale for the three- and six-month periods ended June 30, 2015 and 2014, are summarized as follows, in thousands: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Proceeds from sales $ 270,688 $ 154,603 $ 526,026 $ 509,891 Gross security gains 3,819 974 8,441 3,446 Gross security losses 709 120 978 1,811 The following tables summarize, in thousands, the amount of unrealized losses, defined as the amount by which cost or amortized cost exceeds fair value, and the related fair value of investments with unrealized losses in Heartland's securities portfolio as of June 30, 2015 , and December 31, 2014 . The investments were segregated into two categories: those that have been in a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 or more months. The reference point for determining how long an investment was in an unrealized loss position w as June 30, 2014, and December 31, 2013, respectively. Securities for which Heartland has taken credit-related OTTI write-downs are categorized as being "less than 12 months" or "12 months or longer" in a continuous loss position based on the point in time that the fair value declined to below the cost basis and not the period of time since the credit-related OTTI write-down. Securities available for sale Less than 12 months 12 months or longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2015 U.S. government corporations and agencies $ — $ — $ — $ — $ — $ — Mortgage-backed securities 390,432 (7,343 ) 128,712 (2,017 ) 519,144 (9,360 ) Obligations of states and political subdivisions 75,481 (1,344 ) 9,615 (433 ) 85,096 (1,777 ) Total temporarily impaired securities $ 465,913 $ (8,687 ) $ 138,327 $ (2,450 ) $ 604,240 $ (11,137 ) December 31, 2014 U.S. government corporations and agencies $ 6,042 $ (15 ) $ — $ — $ 6,042 $ (15 ) Mortgage-backed securities 327,363 (7,391 ) 306,078 (4,577 ) 633,441 (11,968 ) Obligations of states and political subdivisions 886 (6 ) 20,507 (322 ) 21,393 (328 ) Total temporarily impaired securities $ 334,291 $ (7,412 ) $ 326,585 $ (4,899 ) $ 660,876 $ (12,311 ) Securities held to maturity Less than 12 months 12 months or longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2015 Mortgage-backed securities $ — $ — $ 1,914 $ (816 ) $ 1,914 $ (816 ) Obligations of states and political subdivisions 26,655 (466 ) 17,324 (1,071 ) 43,979 (1,537 ) Total temporarily impaired securities $ 26,655 $ (466 ) $ 19,238 $ (1,887 ) $ 45,893 $ (2,353 ) December 31, 2014 Mortgage-backed securities $ — $ — $ 2,761 $ (667 ) $ 2,761 $ (667 ) Obligations of states and political subdivisions 3,172 (422 ) 29,402 (523 ) 32,574 (945 ) Total temporarily impaired securities $ 3,172 $ (422 ) $ 32,163 $ (1,190 ) $ 35,335 $ (1,612 ) Heartland reviews the investment securities portfolio on a quarterly basis to monitor its exposure to OTTI. A determination as to whether a security's decline in fair value is other-than-temporary takes into consideration numerous factors and the relative significance of any single factor can vary by security. Some factors Heartland may consider in the OTTI analysis include the length of time the security has been in an unrealized loss position, changes in security ratings, financial condition of the issuer, as well as security and industry specific economic conditions. In addition, with regard to debt securities, Heartland may also evaluate payment structure, whether there are defaulted payments or expected defaults, prepayment speeds, and the value of any underlying collateral. For certain debt securities in unrealized loss positions, Heartland prepares cash flow analyses to compare the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. During 2012, Heartland experienced deterioration in the credit support on three private label mortgage-backed securities which resulted in a credit-related OTTI loss. The underlying collateral on these securities experienced an increased level of defaults and a slowing of voluntary prepayments causing the present value of the forward expected cash flows, using prepayment and default vectors, to be below the amortized cost basis of the securities. Based on Heartland's evaluation, a $981,000 OTTI on three private label mortgage-backed securities attributable to credit-related losses was recorded in March 2012. The other-than-temporary credit-related losses were $ 797,000 in the held to maturity category and $184,000 in the available for sale category. The remaining unrealized losses on Heartland's mortgage-backed securities are the result of changes in market interest rates or widening of market spreads subsequent to the initial purchase of the securities and not related to concerns regarding the underlying credit of the issuers or the underlying collateral. It is expected that the securities will not be settled at a price less than the amortized cost of the investment. Because the decline in fair value is attributable to changes in interest rates or widening market spreads and not credit quality, and because Heartland has the intent and ability to hold these investments until a market price recovery or to maturity and does not believe it will be required to sell the securities before maturity, these investments are not considered other-than-temporarily impaired. Unrealized losses on Heartland's obligations of states and political subdivisions are the result of changes in market interest rates or widening of market spreads subsequent to the initial purchase of the securities. Management monitors the credit quality and financial stability of the underlying municipalities. Because the decline in fair value is attributable to changes in interest rates or widening market spreads due to insurance company downgrades and not underlying credit quality, and because Heartland has the intent and ability to hold these investments until a market price recovery or to maturity and does not believe it will be required to sell the securities before maturity, these investments are not considered other-than-temporarily impaired. There were no gross realized gains or losses on the sale of available for sale securities with OTTI write-downs for the periods ended June 30, 2015 , or December 31, 2014 . The following table shows the detail of OTTI write-downs on debt securities included in earnings and the related changes in other accumulated comprehensive income ("AOCI") for the same securities, in thousands: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Recorded as part of gross realized losses: Credit related OTTI $ — $ — $ — $ — Intent to sell OTTI — — — — Total recorded as part of gross realized losses — — — — Recorded directly to AOCI for non-credit related impairment: Residential mortgage backed securities — — — — Accretion of non-credit related impairment (24 ) (24 ) (48 ) (48 ) Total changes to AOCI for non-credit related impairment (24 ) (24 ) (48 ) (48 ) Total OTTI losses (accretion) recorded on debt securities, net $ (24 ) $ (24 ) $ (48 ) $ (48 ) Heartland has not experienced any OTTI writedowns since the initial impairment charge in 2012. Included in other securities at June 30, 2015, and December 31, 2014, were shares of stock in each Federal Home Loan Bank (the "FHLB") of Des Moines, Chicago, Dallas, San Francisco and Topeka at an amortized cost of $ 14.6 million and $ 14.3 million , respectively.

Loans and Leases

Loans and Leases	6 Months Ended
	Jun. 30, 2015
Receivables [Abstract]
Loans and Leases	LOANS AND LEASES Loans and leases as of June 30, 2015 , and December 31, 2014 , were as follows, in thousands: June 30, 2015 December 31, 2014 Loans and leases receivable held to maturity: Commercial $ 1,189,626 $ 1,036,080 Commercial real estate 2,010,091 1,707,060 Agricultural and agricultural real estate 444,110 423,827 Residential real estate 443,026 380,341 Consumer 364,441 330,555 Gross loans and leases receivable held to maturity 4,451,294 3,877,863 Unearned discount (234 ) (90 ) Deferred loan fees (1,237 ) (1,028 ) Total net loans and leases receivable held to maturity 4,449,823 3,876,745 Loans covered under loss share agreements: Commercial and commercial real estate — 54 Agricultural and agricultural real estate — — Residential real estate — 1,204 Consumer — — Total loans covered under loss share agreements — 1,258 Allowance for loan and lease losses (45,614 ) (41,449 ) Loans and leases receivable, net $ 4,404,209 $ 3,836,554 Heartland has certain lending policies and procedures in place that are designed to provide for an acceptable level of credit risk. The board of directors reviews and approves these policies and procedures on a regular basis. A reporting system supplements the review process by providing management and the board with frequent reports related to loan production, loan quality, concentrations of credit, loan delinquencies and nonperforming loans and potential problem loans. Diversification in the loan portfolio is also a means of managing risk associated with fluctuations in economic conditions. The commercial and commercial real estate loan portfolio includes a wide range of business loans, including lines of credit for working capital and operational purposes and term loans for the acquisition of equipment and real estate. Although most loans are made on a secured basis, loans may be made on an unsecured basis where warranted by the overall financial condition of the borrower. Terms of commercial business loans generally range from one to five years. Commercial loans and leases are primarily made based on the identified cash flow of the borrower and secondarily on the underlying collateral provided by the borrower. The collateral that Heartland requires for most of these loans and leases is based upon the discounted market value of the collateral. The primary repayment risks of commercial loans and leases are that the cash flow of the borrowers may be unpredictable, and the collateral securing these loans may fluctuate in value. Heartland seeks to minimize these risks in a variety of ways. The underwriting analysis includes credit verification, analysis of global cash flows, appraisals and a review of the financial condition of the borrower. Personal guarantees are frequently required as a tertiary form of repayment. In addition, when underwriting loans for commercial real estate, careful consideration is given to the property's operating history, future operating projections, current and projected occupancy, location and physical condition. Heartland also utilizes government guaranteed lending through the U.S. Small Business Administration and the U.S. Department of Agriculture's Rural Development Business and Industry Program to assist customers with longer-term funding and to reduce risk. Agricultural loans, many of which are secured by crops, machinery and real estate, are provided to finance capital improvements and farm operations as well as acquisitions of livestock and machinery. Agricultural loans present unique credit risks relating to adverse weather conditions, loss of livestock due to disease or other factors, declines in market prices for agricultural products and the impact of government regulations. The ultimate repayment of agricultural loans is dependent upon the profitable operation or management of the agricultural entity. In underwriting agricultural loans, lending personnel work closely with their customers to review budgets and cash flow projections for the ensuing crop year. These budgets and cash flow projections are monitored closely during the year and reviewed with the customers at least annually. Lending personnel also work closely with governmental agencies, including the Farm Service Agency, to help agricultural customers obtain credit enhancement products such as loan guarantees or interest assistance. Heartland originates first-lien, adjustable-rate and fixed-rate, one-to-four-family residential real estate loans for the construction, purchase or refinancing of a single family residential property. These loans are principally collateralized by owner-occupied properties and are amortized over 10 to 30 years. Heartland typically sells longer-term, low-rate, residential mortgage loans in the secondary market with servicing rights retained. This practice allows Heartland to better manage interest rate risk and liquidity risk. The Heartland bank subsidiaries participate in lending programs sponsored by U.S. government agencies such as Veterans Administration and Federal Home Administration when justified by market conditions. Consumer lending includes motor vehicle, home improvement, home equity and small personal credit lines. Consumer loans typically have shorter terms, lower balances, higher yields and higher risks of default than one-to-four-family residential mortgage loans. Consumer loan collections are dependent on the borrower's continuing financial stability, and are therefore more likely to be affected by adverse personal circumstances. Risk is reduced through underwriting criteria, which include credit verification, appraisals, a review of the borrower's financial condition, and personal cash flows. A security interest, with title insurance when necessary, is taken in the underlying real estate. Heartland's consumer finance subsidiaries, Citizens Finance Co. and Citizens Finance of Illinois Co., typically lend to borrowers with past credit problems or limited credit histories, which comprise approximately 21% of Heartland's total consumer loan portfolio. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Heartland’s policy is to discontinue the accrual of interest income on any loan or lease when, in the opinion of management, there is a reasonable doubt as to the timely collection of the interest and principal, normally when a loan or lease is 90 days past due. When interest accruals are deemed uncollectible, interest credited to income in the current year is reversed and interest accrued in prior years is charged to the allowance for loan and lease losses. Nonaccrual loans and leases are returned to an accrual status when, in the opinion of management, the financial position of the borrower indicates that there is no longer any reasonable doubt as to the timely payment of interest and principal. Under Heartland’s credit practices, a loan is impaired when, based on current information and events, it is probable that Heartland will be unable to collect all amounts due according to the contractual terms of the loan agreement. Loan impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except where more practical, at the observable market price of the loan or the fair value of the collateral if the loan is collateral dependent. The following table shows the balance in the allowance for loan and lease losses at June 30, 2015 , and December 31, 2014 , and the related loan balances, disaggregated on the basis of impairment methodology, in thousands. Loans evaluated under ASC 310-10-35 include loans on nonaccrual status and troubled debt restructurings, which are individually evaluated for impairment, and other impaired loans deemed to have similar risk characteristics. All other loans are collectively evaluated for impairment under ASC 450-20. Heartland has made no significant changes to the accounting for the allowance for loan and lease losses policy during 2015. Allowance For Loan and Lease Losses Gross Loans and Leases Receivable Held to Maturity Ending Balance Under ASC 310-10-35 Ending Balance Under ASC 450-20 Total Ending Balance Evaluated for Impairment Under ASC 310-10-35 Ending Balance Evaluated for Impairment Under ASC 450-20 Total June 30, 2015 Commercial $ 238 $ 12,826 $ 13,064 $ 10,562 $ 1,179,064 $ 1,189,626 Commercial real estate 1,023 16,585 17,608 39,505 1,970,586 2,010,091 Agricultural and agricultural real estate 19 3,657 3,676 4,658 439,452 444,110 Residential real estate 411 3,688 4,099 11,928 431,098 443,026 Consumer 1,118 6,049 7,167 5,006 359,435 364,441 Total $ 2,809 $ 42,805 $ 45,614 $ 71,659 $ 4,379,635 $ 4,451,294 December 31, 2014 Commercial $ 754 $ 11,155 $ 11,909 $ 4,526 $ 1,031,554 $ 1,036,080 Commercial real estate 636 15,262 15,898 35,771 1,671,289 1,707,060 Agricultural and agricultural real estate 52 3,243 3,295 5,049 418,778 423,827 Residential real estate 442 3,299 3,741 10,235 370,106 380,341 Consumer 813 5,793 6,606 6,143 324,412 330,555 Total $ 2,697 $ 38,752 $ 41,449 $ 61,724 $ 3,816,139 $ 3,877,863 The following table presents nonaccrual loans, accruing loans past due 90 days or more and troubled debt restructured loans not covered under loss share agreements at June 30, 2015 , and December 31, 2014 , in thousands. There were no nonaccrual leases, accruing leases past due 90 days or more or restructured leases at June 30, 2015 , and December 31, 2014 . June 30, 2015 December 31, 2014 Nonaccrual loans $ 25,894 $ 24,205 Nonaccrual troubled debt restructured loans 816 865 Total nonaccrual loans $ 26,710 $ 25,070 Accruing loans past due 90 days or more $ — $ — Performing troubled debt restructured loans $ 10,903 $ 12,133 The following table provides information on troubled debt restructured loans that were modified during the three and six months ended June 30, 2015 , and June 30, 2014, dollars in thousands: Three Months Ended 2015 2014 Number Pre- Post- Number Pre- Post- Commercial 1 $ 830 $ 830 — $ — $ — Commercial real estate — — — 1 298 298 Total commercial and commercial real estate 1 830 830 1 298 298 Agricultural and agricultural real estate 1 311 311 2 3,357 3,357 Residential real estate — — — 1 38 38 Consumer — — — — — — Total 1 $ 1,141 $ 1,141 4 $ 3,693 $ 3,693 Six Months Ended June 30, 2015 2014 Number of Loans Pre- Modification Recorded Investment Post- Modification Recorded Investment Number of Loans Pre- Modification Recorded Investment Post- Modification Recorded Investment Commercial 1 $ 830 $ 830 — $ — $ — Commercial real estate 1 3,992 3,992 1 298 298 Total commercial and commercial real estate 2 4,822 4,822 1 298 298 Agricultural and agricultural real estate 1 311 311 2 3,357 3,357 Residential real estate — — — 1 38 38 Consumer — — — — — — Total 3 $ 5,133 $ 5,133 4 $ 3,693 $ 3,693 The pre-modification and post-modification recorded investment represents amounts as of the date of loan modification. Since the modifications on these loans have been only interest rate concessions and term extensions, not principal reductions, the pre-modification and post-modification recorded investment amounts are the same. At June 30, 2015, there were no commitments to extend credit to any of the borrowers with an existing troubled debt restructuring. There were no troubled debt restructured loans for which there was a payment default during the three and six months ended June 30, 2015, and June 30, 2014, that had been modified during the twelve-month period prior to the default. Heartland's internal rating system is a series of grades reflecting management's risk assessment, based on its analysis of the borrower's financial condition. The "pass" category consists of all loans that are not in the "nonpass" category, categorized into a range of loan grades that reflect increasing, though still acceptable, risk. Movement of risk through the various grade levels in the pass category is monitored for early identification of credit deterioration. The "nonpass" category consists of special mention, substandard, doubtful and loss loans. The "special mention" rating is attached to loans where the borrower exhibits negative financial trends due to borrower specific or systemic conditions that, if left uncorrected, threaten its capacity to meet its debt obligations. The borrower is believed to have sufficient financial flexibility to react to and resolve its negative financial situation. These credits are closely monitored for improvement or deterioration. The "substandard" rating is assigned to loans that are inadequately protected by the current sound net worth and paying capacity of the borrower and may be further at risk due to deterioration in the value of collateral pledged. Well-defined weaknesses jeopardize liquidation of the debt. These loans are still considered collectible, however, a distinct possibility exists that Heartland will sustain some loss if deficiencies are not corrected. Substandard loans may exhibit some or all of the following weaknesses: deteriorating trends, lack of earnings, inadequate debt service capacity, excessive debt and/or lack of liquidity. The "doubtful" rating is assigned to loans where identified weaknesses make collection or liquidation in full, on the basis of existing facts, conditions and values, highly questionable and improbable. These borrowers are usually in default, lack liquidity and capital, as well as, resources necessary to remain an operating entity. Specific pending events, such as capital injections, liquidations or perfection of liens on additional collateral, may strengthen the credit, thus deferring classification of the loan as loss until exact status can be determined. The "loss" rating is assigned to loans considered uncollectible. As of June 30, 2015 , Heartland had no loans classified as doubtful and no loans classified as loss. Loans are placed on "nonaccrual" when management does not expect to collect payments of principal and interest in full or when principal or interest has been in default for a period of 90 days or more, unless the loan is both well secured and in the process of collection. The following table presents loans and leases not covered by loss share agreements by credit quality indicator at June 30, 2015 , and December 31, 2014 , in thousands: Pass Nonpass Total June 30, 2015 Commercial $ 1,071,508 $ 118,118 $ 1,189,626 Commercial real estate 1,834,875 175,216 2,010,091 Total commercial and commercial real estate 2,906,383 293,334 3,199,717 Agricultural and agricultural real estate 422,208 21,902 444,110 Residential real estate 424,365 18,661 443,026 Consumer 355,869 8,572 364,441 Total gross loans and leases receivable held to maturity $ 4,108,825 $ 342,469 $ 4,451,294 December 31, 2014 Commercial $ 939,717 $ 96,363 $ 1,036,080 Commercial real estate 1,567,711 139,349 1,707,060 Total commercial and commercial real estate 2,507,428 235,712 2,743,140 Agricultural and agricultural real estate 402,883 20,944 423,827 Residential real estate 361,325 19,016 380,341 Consumer 321,114 9,441 330,555 Total gross loans and leases receivable held to maturity $ 3,592,750 $ 285,113 $ 3,877,863 The nonpass category in the table above is comprised of approximately 66% special mention and 34% substandard as of June 30, 2015 . The percent of nonpass loans on nonaccrual status as of June 30, 2015 , was 8% . As of December 31, 2014 , the nonpass category in the table above was comprised of approximately 66% special mention and 34% substandard. The percent of nonpass loans on nonaccrual status as of December 31, 2014 , was 9% . Loans delinquent 30 to 89 days as a percent of total loans were 0.31% at June 30, 2015, compared to 0 .21% at December 31, 2014. Changes in credit risk are monitored on a continuous basis and changes in risk ratings are made when identified. All impaired loans are reviewed at least annually. The following table sets forth information regarding Heartland's accruing and nonaccrual loans and leases not covered by loss share agreements at June 30, 2015 , and December 31, 2014 , in thousands: Accruing Loans and Leases 30-59 Days Past Due 60-89 Days 90 Days or More Past Due Total Past Due Current Nonaccrual Total Loans and Leases June 30, 2015 Commercial $ 3,583 $ 8 $ — $ 3,591 $ 1,183,033 $ 3,002 $ 1,189,626 Commercial real estate 3,384 111 — 3,495 1,995,011 11,585 2,010,091 Total commercial and commercial real estate 6,967 119 — 7,086 3,178,044 14,587 3,199,717 Agricultural and agricultural real estate 671 386 — 1,057 441,896 1,157 444,110 Residential real estate 1,694 152 — 1,846 432,648 8,532 443,026 Consumer 3,131 718 — 3,849 358,158 2,434 364,441 Total gross loans and leases receivable held to maturity $ 12,463 $ 1,375 $ — $ 13,838 $ 4,410,746 $ 26,710 $ 4,451,294 December 31, 2014 Commercial $ 980 $ 48 $ — $ 1,028 $ 1,032,707 $ 2,345 $ 1,036,080 Commercial real estate 1,788 111 — 1,899 1,693,554 11,607 1,707,060 Total commercial and commercial real estate 2,768 159 — 2,927 2,726,261 13,952 2,743,140 Agricultural and agricultural real estate 119 50 — 169 422,219 1,439 423,827 Residential real estate 1,037 445 — 1,482 371,982 6,877 380,341 Consumer 2,382 1,366 — 3,748 324,005 2,802 330,555 Total gross loans and leases receivable held to maturity $ 6,306 $ 2,020 $ — $ 8,326 $ 3,844,467 $ 25,070 $ 3,877,863 The majority of Heartland's impaired loans are those that are nonaccrual or have had their terms restructured in a troubled debt restructuring. The following tables present, for impaired loans not covered by loss share agreements and by category of loan, the unpaid contractual balance at June 30, 2015 , and December 31, 2014 ; the outstanding loan balance recorded on the consolidated balance sheets at June 30, 2015 , and December 31, 2014 ; any related allowance recorded for those loans as of June 30, 2015 , and December 31, 2014 ; the average outstanding loan balance recorded on the consolidated balance sheets during the six months ended June 30, 2015 , and year ended December 31, 2014 ; and the interest income recognized on the impaired loans during the six months ended June 30, 2015 , and year ended December 31, 2014 , in thousands: Unpaid Contractual Balance Loan Balance Related Allowance Recorded Quarter-to- Date Avg. Loan Balance Quarter-to- Date Interest Income Recognized Year-to- Date Avg. Loan Balance Year-to- Date Interest Income Recognized June 30, 2015 Impaired loans with a related allowance: Commercial $ 273 $ 238 $ 238 $ 265 $ 3 $ 379 $ 6 Commercial real estate 2,448 2,448 1,023 1,630 4 2,428 10 Total commercial and commercial real estate 2,721 2,686 1,261 1,895 7 2,807 16 Agricultural and agricultural real estate 1,513 1,513 19 2,711 — 2,983 39 Residential real estate 2,793 2,624 411 2,431 5 2,531 9 Consumer 2,972 2,972 1,118 2,889 7 2,735 11 Total impaired loans with a related allowance $ 9,999 $ 9,795 $ 2,809 $ 9,926 $ 19 $ 11,056 $ 75 Impaired loans without a related allowance: Commercial $ 10,324 $ 10,324 $ — $ 8,163 $ 141 $ 5,813 $ 174 Commercial real estate 40,650 37,057 — 34,798 366 33,449 657 Total commercial and commercial real estate 50,974 47,381 — 42,961 507 39,262 831 Agricultural and agricultural real estate 3,145 3,145 — 2,205 46 2,082 49 Residential real estate 9,380 9,304 — 8,942 12 8,356 71 Consumer 2,034 2,034 — 2,238 12 2,656 23 Total impaired loans without a related allowance $ 65,533 $ 61,864 $ — $ 56,346 $ 577 $ 52,356 $ 974 Total impaired loans held to maturity: Commercial $ 10,597 $ 10,562 $ 238 $ 8,428 $ 144 $ 6,192 $ 180 Commercial real estate 43,098 39,505 1,023 36,428 370 35,877 667 Total commercial and commercial real estate 53,695 50,067 1,261 44,856 514 42,069 847 Agricultural and agricultural real estate 4,658 4,658 19 4,916 46 5,065 88 Residential real estate 12,173 11,928 411 11,373 17 10,887 80 Consumer 5,006 5,006 1,118 5,127 19 5,391 34 Total impaired loans held to maturity $ 75,532 $ 71,659 $ 2,809 $ 66,272 $ 596 $ 63,412 $ 1,049 Unpaid Contractual Balance Loan Balance Related Allowance Recorded Year-to- Date Avg. Loan Balance Year-to- Date Interest Income Recognized December 31, 2014 Impaired loans with a related allowance: Commercial $ 780 $ 780 $ 754 $ 5,594 $ 19 Commercial real estate 7,356 7,322 636 5,931 303 Total commercial and commercial real estate 8,136 8,102 1,390 11,525 322 Agricultural and agricultural real estate 3,317 3,317 52 3,966 104 Residential real estate 2,412 2,244 442 3,398 12 Consumer 2,799 2,799 813 4,053 19 Total impaired loans with a related allowance $ 16,664 $ 16,462 $ 2,697 $ 22,942 $ 457 Impaired loans without a related allowance: Commercial $ 4,913 $ 3,746 $ — $ 3,499 $ 101 Commercial real estate 32,708 28,449 — 24,522 1,172 Total commercial and commercial real estate 37,621 32,195 — 28,021 1,273 Agricultural and agricultural real estate 3,961 1,732 — 3,308 13 Residential real estate 8,200 7,991 — 6,267 110 Consumer 3,350 3,344 — 1,870 127 Total impaired loans without a related allowance $ 53,132 $ 45,262 $ — $ 39,466 $ 1,523 Total impaired loans held to maturity: Commercial $ 5,693 $ 4,526 $ 754 $ 9,093 $ 120 Commercial real estate 40,064 35,771 636 30,453 1,475 Total commercial and commercial real estate 45,757 40,297 1,390 39,546 1,595 Agricultural and agricultural real estate 7,278 5,049 52 7,274 117 Residential real estate 10,612 10,235 442 9,665 122 Consumer 6,149 6,143 813 5,923 146 Total impaired loans held to maturity $ 69,796 $ 61,724 $ 2,697 $ 62,408 $ 1,980 On January 16, 2015, Heartland acquired Community Banc-Corp of Sheboygan, Inc., parent company of Community Bank & Trust in Sheboygan, Wisconsin. As of January 16, 2015, Community Bank & Trust had loans of $413.4 million , and the estimated fair value of the loans acquired was $395.0 million . The Community Banc-Corp of Sheboygan, Inc. acquisition was accounted for under the acquisition method of accounting in accordance with ASC 805, “ Business Combinations. ” Purchased loans acquired in a business combination, which include loans purchased in the Community Bank & Trust acquisition, are recorded at estimated fair value on their purchase date, but the purchaser cannot carry over the related allowance for loan and lease losses. Purchased loans are accounted for under ASC 310-30, “ Loans and Debt Securities with Deteriorated Credit Quality, ” when the loans have evidence of credit deterioration since origination and it is probable at the date of the acquisition that Heartland will not collect all contractually required principal and interest payments. Evidence of credit quality deterioration at the purchase date included statistics such as past due and nonaccrual status. Generally, acquired loans that meet Heartland’s definition for nonaccrual status fall within the scope of ASC 310-30. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable difference which is included in the carrying value of the loans. Subsequent decreases to the expected cash flows will generally result in a provision for loan and lease losses. Subsequent increases in cash flows result in a reversal of the provision for loan and lease losses to the extent of prior charges, or a reclassification of the difference from nonaccretable to accretable with a positive impact on future interest income. Further, any excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable yield and is recognized into interest income over the remaining life of the loan when there is a reasonable expectation about the amount and timing of such cash flows. The carrying amount of the loans acquired with the acquisition of Community Bank & Trust at June 30, 2015 , consisted of purchased impaired and nonimpaired loans as summarized in the following table, in thousands: June 30, 2015 Impaired Non Impaired Total Loans Commercial $ — $ 82,415 $ 82,415 Commercial real estate 7,755 211,377 219,132 Agricultural and agricultural real estate — 2,937 2,937 Residential real estate — 23,419 23,419 Consumer loans — 18,116 18,116 Total Loans $ 7,755 $ 338,264 $ 346,019 On the acquisition date, the preliminary estimate of the contractually required payments receivable for all loans with evidence of credit deterioration since origination acquired in the acquisition was $12.9 million and the estimated fair value of the loans was $8.2 million . At June 30, 2015 , a majority of these loans were valued based upon the liquidation value of the underlying collateral, because the expected cash flows are primarily based on the liquidation of underlying collateral and the timing and amount of the cash flows could not be reasonably estimated. At June 30, 2015, there was an allowance for loan and lease losses of $ 550,000 related to these ASC 310-30 loans. On the acquisition date, the preliminary estimate of the contractually required payments receivable for all nonimpaired loans acquired in the acquisition was $400.0 million and the estimated fair value of the loans was $386.8 million . On July 2, 2009, Heartland acquired all deposits of The Elizabeth State Bank in Elizabeth, Illinois through its subsidiary Galena State Bank & Trust Co. based in Galena, Illinois, in a whole bank loss sharing transaction facilitated by the FDIC. As of July 2, 2009, The Elizabeth State Bank had loans of $42.7 million . The estimated fair value of the loans acquired was $37.8 million . The FDIC approved the transfer of the loss share agreements to Illinois Bank & Trust as part of the merger of Galena State Bank & Trust Co. into Illinois Bank & Trust. At the date of acquisition, the acquired loans and other real estate owned were covered by a loss share agreement for non-residential loans and a loss share agreement for residential real estate. Effective October 1, 2014, loans subject to the non-residential loss sharing agreement with the FDIC were no longer covered by loss sharing agreements. The remaining residential real estate loans covered under the loss share agreement are not material at June 30, 2015.

Allowance for Loan and Lease Lo

Allowance for Loan and Lease Losses	6 Months Ended
	Jun. 30, 2015
Allowance for Loan and Lease Losses [Abstract]
Allowance for Loan and Lease Losses	ALLOWANCE FOR LOAN AND LEASE LOSSES Changes in the allowance for loan and lease losses for the six months ended June 30, 2015 , and June 30, 2014, were as follows, in thousands: Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at March 31,2015 $ 11,688 $ 16,635 $ 3,216 $ 3,745 $ 6,570 $ — $ 41,854 Charge-offs (682 ) (371 ) (275 ) (55 ) (1,351 ) — (2,734 ) Recoveries 111 370 2 70 267 — 820 Provision 1,947 974 733 339 1,681 — 5,674 Balance at June 30, 2015 $ 13,064 $ 17,608 $ 3,676 $ 4,099 $ 7,167 $ — $ 45,614 Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at December 31, 2014 $ 11,909 $ 15,898 $ 3,295 $ 3,741 $ 6,606 $ — $ 41,449 Charge-offs (956 ) (704 ) (551 ) (113 ) (2,414 ) — (4,738 ) Recoveries 431 496 24 107 500 — 1,558 Provision 1,680 1,918 908 364 2,475 — 7,345 Balance at June 30, 2015 $ 13,064 $ 17,608 $ 3,676 $ 4,099 $ 7,167 $ — $ 45,614 Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at March 31, 2014 $ 11,633 $ 13,010 $ 2,571 $ 3,671 $ 7,376 $ 312 $ 38,573 Charge-offs (148 ) (161 ) (125 ) (55 ) (911 ) — (1,400 ) Recoveries 208 514 2 30 214 — 968 Provision 234 1,317 340 169 837 (146 ) 2,751 Balance at June 30, 2014 $ 11,927 $ 14,680 $ 2,788 $ 3,815 $ 7,516 $ 166 $ 40,892 Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at December 31, 2013 $ 13,099 $ 14,152 $ 2,992 $ 3,720 $ 7,722 $ — $ 41,685 Charge-offs (7,065 ) (1,084 ) (1,636 ) (204 ) (2,069 ) — (12,058 ) Recoveries 407 1,294 4 56 422 — 2,183 Provision 5,486 318 1,428 243 1,441 166 9,082 Balance at June 30, 2014 $ 11,927 $ 14,680 $ 2,788 $ 3,815 $ 7,516 $ 166 $ 40,892 Management allocates the allowance for loan and lease losses by pools of risk within each loan portfolio. The allocation of the allowance for loan and lease losses by loan portfolio is made for analytical purposes and is not necessarily indicative of the trend of future loan and lease losses in any particular category. The total allowance for loan and lease losses is available to absorb losses from any segment of the loan portfolio.

Goodwill, Core Deposit Premium

Goodwill, Core Deposit Premium and Other Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Core Deposit Premium and Other Intangible Assets	GOODWILL, CORE DEPOSIT PREMIUM AND OTHER INTANGIBLE ASSETS Heartland had goodwill of $ 54.2 million at June 30, 2015 , and $35.6 million December 31, 2014 . Heartland conducts its annual internal assessment of the goodwill both collectively and at its subsidiaries as of September 30. Heartland recorded $ 18.6 million of goodwill in connection with the acquisition of Community Banc-Corp of Sheboygan, Inc., the parent company of Community Bank & Trust, based in Sheboygan, Wisconsin on January 16, 2015. The goodwill associated with this transaction is not deductible for tax purposes. As part of this acquisition, Heartland recognized core deposit intangibles of $ 6.0 million that are expected to be amortized over a period of 10 years . The core deposit intangibles associated with this transaction are not deductible for tax purposes. In addition, Heartland recognized commercial servicing rights of $ 4.3 million . Other intangible assets consist of core deposit intangibles, mortgage servicing rights, customer relationship intangible, and commercial servicing rights. The gross carrying amount of other intangible assets and the associated accumulated amortization at June 30, 2015 , and December 31, 2014 , are presented in the table below, in thousands: June 30, 2015 December 31, 2014 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Amortizing intangible assets: Core deposit intangibles $ 27,109 $ 13,849 $ 13,260 $ 21,069 $ 12,525 $ 8,544 Mortgage servicing rights 41,458 13,819 27,639 37,825 12,841 24,984 Customer relationship intangible 1,177 794 383 1,177 773 404 Commercial servicing rights 4,396 452 3,944 — — — Total $ 74,140 $ 28,914 $ 45,226 $ 60,071 $ 26,139 $ 33,932 The following table shows the estimated future amortization expense for amortizable intangible assets, in thousands: Core Deposit Intangibles Mortgage Servicing Rights Customer Relationship Intangible Commercial Servicing Rights Total Six months ending December 31, 2015 $ 1,374 $ 4,368 $ 21 $ 421 $ 6,184 Year ending December 31, 2016 2,467 5,818 41 821 9,147 2017 2,180 4,987 40 769 7,976 2018 1,925 4,156 39 676 6,796 2019 1,667 3,324 38 504 5,533 2020 1,423 2,493 37 314 4,267 Thereafter 2,224 2,493 167 439 5,323 Projections of amortization expense for mortgage servicing rights are based on existing asset balances and the existing interest rate environment as of June 30, 2015 . Heartland's actual experience may be significantly different depending upon changes in mortgage interest rates and market conditions. Mortgage loans serviced for others were $3.79 billion and $ 3.50 billion as of June 30, 2015 , and December 31, 2014 , respectively. The fair value of Heartland's mortgage servicing rights was estimated at $37.0 million at June 30, 2015 , and $34.2 million at December 31, 2014 . Heartland's mortgage servicing rights portfolio is comprised of loans serviced for the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association. The servicing rights portfolio is separated into 15 - and 30 -year tranches. At both June 30, 2015, and December 31, 2014, no valuation allowance was required for any of the tranches. The fair value of mortgage servicing rights is calculated based upon a discounted cash flow analysis. Cash flow assumptions, including prepayment speeds, servicing costs and escrow earnings are considered in the calculation. The average constant prepayment rate was 11.43% and 11.40% for the June 30, 2015, and December 31, 2014, valuations, respectively. The discount rate was 9.22% and 9.20% for the June 30, 2015, and December 31, 2014, valuations, respectively. The average capitalization rate for the first six months of 2015 ranged from 65 to 138 basis points compared to 75 and 139 basis points for 2014. Fees collected for the servicing of mortgage loans for others were $ 5.0 million and $ 4.2 million for the six months ended June 30, 2015, and June 30, 2014, respectively. The following table summarizes, in thousands, the changes in capitalized mortgage servicing rights for the six-month periods ended June 30, 2015, and June 30, 2014: 2015 2014 Balance at January 1 $ 24,984 $ 21,788 Originations 7,015 3,344 Amortization (4,360 ) (2,355 ) Balance at June 30 $ 27,639 $ 22,777 Fair value of mortgage servicing rights $ 36,971 $ 31,471 Mortgage servicing rights, net to servicing portfolio 0.73 % 0.71 % Heartland's commercial servicing rights portfolio was initially acquired with the Community Banc-Corp of Sheboygan, Inc. transaction that closed on January 16, 2015. The commercial servicing portfolio is comprised of loans serviced for the Small Business Administration and United States Department of Agriculture, which totaled $159.6 million . Fees collected for the servicing of commercial loans for others were $360,000 . The fair value of Heartland's commercial servicing rights was estimated at $4.6 million as of June 30, 2015. The following table summarizes, in thousands, the changes in capitalized commercial servicing rights for the six-month periods ended June 30, 2015, and June 30, 2014: 2015 2014 Balance at January 1 $ — $ — Acquired 4,255 — Originations 141 — Amortization (452 ) — Balance at June 30 $ 3,944 $ — Mortgage and commercial servicing rights are initially recorded at fair value in net gains on sale of loans held for sale when they are acquired through loan sales. Fair value is based on market prices for comparable servicing contracts, when available, or based on a valuation model that calculates the present value of estimated future net servicing income. Mortgage and commercial servicing rights are subsequently measured using the amortization method, which requires the asset to be amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing rights are evaluated for impairment based upon the fair value of the assets as compared to the carrying amount. Impairment is recognized through a valuation allowance for specific tranches to the extent that fair value is less than carrying amount. At June 30, 2015, no valuation allowance was required for any of Heartland's servicing rights.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	DERIVATIVE FINANCIAL INSTRUMENTS Heartland uses derivative financial instruments as part of its interest rate risk management strategy. As part of the strategy, Heartland considers the use of interest rate swaps, caps, floors, collars, and certain interest rate lock commitments and forward sales of securities related to mortgage banking activities. Heartland's current strategy includes the use of interest rate swaps, interest rate lock commitments, forward sales of mortgage securities, as well as facilitating back-to-back loan swaps to assist customers in managing interest rate risk. Heartland's objectives are to add stability to its net interest margin and to manage its exposure to movements in interest rates. The contract or notional amount of a derivative is used to determine, along with the other terms of the derivative, the amounts to be exchanged between the counterparties. Heartland is exposed to credit risk in the event of nonperformance by counterparties to financial instruments. Heartland minimizes this risk by entering into derivative contracts with counterparties that met Heartland’s credit standards, and the contracts contain collateral provisions protecting the at-risk party. Heartland has not experienced any losses from nonperformance by these counterparties. Heartland monitors counterparty risk in accordance with the provisions of ASC 815. In addition, interest rate-related derivative instruments generally contain language outlining collateral pledging requirements for each counterparty. Collateral must be posted when the market value exceeds certain threshold limits which are determined by credit ratings of each counterparty. Heartland was required to pledge $3.0 million and $5.3 million of cash as collateral at June 30, 2015 , and December 31, 2014 , respectively. Heartland's counterparties were required to pledge $2.4 million and $ 0 at June 30, 2015 , and December 31, 2014 , respectively. Heartland's derivative and hedging instruments are recorded at fair value on the consolidated balance sheets. See Note 8, “Fair Value,” for additional fair value information and disclosures. Cash Flow Hedges Heartland has variable rate funding which creates exposure to variability in interest payments due to changes in interest rates. To manage the interest rate risk related to the variability of interest payments, Heartland has entered into various interest rate swap agreements. Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are received or made on Heartland's variable-rate liabilities. For the six months ended June 30, 2015 , the change in net unrealized losses on cash flow hedges reflects changes in the fair value of the swaps and reclassification from accumulated other comprehensive income to interest expense totaling $1.1 million . For the next twelve months, Heartland estimates that cash payments and reclassification from accumulated other comprehensive income to interest expense will total $ 2.2 million . Heartland executed an interest rate swap transaction on April 5, 2011, with an effective date of April 20, 2011, and an expiration date of April 20, 2016, to effectively convert $15.0 million of its newly issued variable rate amortizing debt to fixed rate debt. For accounting purposes, this swap transaction is designated as a cash flow hedge of the changes in cash flows attributable to changes in one-month LIBOR, the benchmark interest rate being hedged, associated with the interest payments made on an amount of Heartland's debt principal equal to the then-outstanding swap notional amount. At inception, Heartland asserted that the underlying principal balance would remain outstanding throughout the hedge transaction making it probable that sufficient LIBOR-based interest payments would exist through the maturity date of the swap. Heartland entered into three forward starting interest rate swap transactions to effectively convert Heartland Financial Statutory Trust IV, V, and VII, which total $ 65.0 million , as well as Morrill Statutory Trust I and II, which total $ 20.0 million , from variable rate subordinated debentures to fixed rate debt. For accounting purposes, these five swap transactions are designated as cash flow hedges of the changes in cash flows attributable to changes in LIBOR, the benchmark interest rate being hedged, associated with the interest payments made on $85.0 million of Heartland's subordinated debentures that reset quarterly on a specified reset date. At inception, Heartland asserted that the underlying principal balance would remain outstanding throughout the hedge transaction making it probable that sufficient LIBOR-based interest payments would exist through the maturity date of the swaps. During the first quarter of 2015, Heartland entered into two additional forward starting interest rate swaps. The first forward starting interest rate swap transaction relates to Heartland's $20.0 million Statutory Trust VI, which will convert from a fixed interest rate subordinated debenture to a variable interest rate subordinated debenture. The effective date of the interest rate swap transaction is June 15, 2017, and Heartland Statutory Trust VI will effectively remain at a fixed interest rate. The forward-starting swap transaction expires on June 15, 2024. The second forward starting interest rate swap is effective on March 1, 2017, and will replace the current interest rate swap related to Heartland Statutory Trust VII upon its expiration on March 1, 2017. The table below identifies the balance sheet category and fair values of Heartland's derivative instruments designated as cash flow hedges at June 30, 2015 , and December 31, 2014 , in thousands: Notional Amount Fair Value Balance Sheet Category Receive Rate Weighted Average Pay Rate Maturity June 30, 2015 Interest rate swap $ 9,667 $ (159 ) Other Liabilities 2.937 % 5.140 % 04/20/2016 Interest rate swap 25,000 (523 ) Other Liabilities 0.283 % 2.255 % 03/17/2021 Interest rate swap 20,000 (877 ) Other Liabilities 0.283 % 3.220 % 03/01/2017 Interest rate swap 20,000 (1,680 ) Other Liabilities 0.271 % 3.355 % 01/07/2020 Interest rate swap 10,000 (86 ) Other Liabilities 0.281 % 1.674 % 03/26/2019 Interest rate swap 10,000 (86 ) Other Liabilities 0.283 % 1.658 % 03/18/2019 Interest rate swap 20,000 491 Other Assets 1.700 % 2.390 % 06/15/2024 Interest rate swap 20,000 452 Other Assets 1.676 % 2.352 % 03/01/2024 December 31, 2014 Interest rate swap $ 10,369 $ (248 ) Other Liabilities 2.915 % 5.140 % 04/20/2016 Interest rate swap 25,000 (534 ) Other Liabilities 0.243 % 2.255 % 03/17/2021 Interest rate swap 20,000 (1,046 ) Other Liabilities 0.234 % 3.220 % 03/01/2017 Interest rate swap 20,000 (1,748 ) Other Liabilities 0.232 % 3.355 % 01/07/2020 Interest rate swap 10,000 (35 ) Other Liabilities 0.255 % 1.674 % 03/26/2019 Interest rate swap 10,000 (35 ) Other Liabilities 0.243 % 1.658 % 03/18/2019 The table below identifies the gains and losses recognized on Heartland's derivative instruments designated as cash flow hedges for the six months ended June 30, 2015 , and June 30, 2014, in thousands: Effective Portion Ineffective Portion Recognized in OCI Reclassified from AOCI into Income Recognized in Income on Derivatives Amount of Gain (Loss) Category Amount of Gain (Loss) Category Amount of Gain (Loss) Three Months Ended June 30, 2015 Interest rate swap $ 50 Interest Expense $ (56 ) Other Income $ — Interest rate swap 387 Interest Expense (126 ) Other Income — Interest rate swap 124 Interest Expense (150 ) Other Income — Interest rate swap 252 Interest Expense (155 ) Other Income — Interest rate swap 57 Interest Expense (36 ) Other Income — Interest rate swap 55 Interest Expense (36 ) Other Income — Interest rate swap 584 Interest Expense — Other Income — Interest rate swap 559 Interest Expense — Other Income — Six Months Ended June 30, 2015 Interest rate swap $ 89 Interest Expense $ (113 ) Other Income $ — Interest rate swap 11 Interest Expense (252 ) Other Income — Interest rate swap 169 Interest Expense (301 ) Other Income — Interest rate swap 68 Interest Expense (315 ) Other Income — Interest rate swap (51 ) Interest Expense (71 ) Other Income — Interest rate swap (51 ) Interest Expense (71 ) Other Income — Interest rate swap 491 Interest Expense — Other Income — Interest rate swap 452 Interest Expense — Other Income — Three Months Ended June 30, 2014 Interest rate swap $ 44 Interest Expense $ (64 ) Other Income $ — Interest rate swap (372 ) Interest Expense (129 ) Other Income — Interest rate swap 65 Interest Expense (151 ) Other Income — Interest rate swap (159 ) Interest Expense (156 ) Other Income — Interest rate swap (86 ) Interest Expense (37 ) Other Income — Interest rate swap (85 ) Interest Expense (36 ) Other Income — Interest rate swap — Interest Expense — Other Income — Six Months Ended June 30, 2014 Interest rate swap $ 95 Interest Expense $ (129 ) Other Income $ — Interest rate swap (310 ) Interest Expense (129 ) Other Income — Interest rate swap 179 Interest Expense (302 ) Other Income — Interest rate swap (240 ) Interest Expense (315 ) Other Income — Interest rate swap (41 ) Interest Expense (37 ) Other Income — Interest rate swap (40 ) Interest Expense (36 ) Other Income — Interest rate swap 146 Interest Expense (146 ) Other Income — Fair Value Hedge Heartland uses interest rate swaps to convert certain long term fixed rate loans to floating rates to hedge interest rate risk exposure. Heartland uses hedge accounting in accordance with ASC 815, with the unrealized gains and losses, representing the change in fair value of the derivative and the change in fair value of the risk being hedged on the related loan, being recorded in the consolidated statements of income. The ineffective portions of the unrealized gains or losses, if any, are recorded in interest income and interest expense in the consolidated statements of income. Heartland uses statistical regression to assess hedge effectiveness, both at the inception of the hedge as well as on a continual basis. The regression analysis involves regressing the periodic change in fair value of the hedging instrument against the periodic changes in the fair value of the asset being hedged due to changes in the hedge risk. During the second quarter of 2015, Heartland entered into an interest rate swap, paying a fixed interest rate of 3.40% to the counterparty and receives a variable interest rate from the same counterparty based on one month LIBOR plus .88% calculated on a notional amount of $13.8 million . The swap is designated as a fair value hedge and did not have a material impact on the consolidated balance sheets as of June 30, 2015, or consolidated statements of income for the three- and six-month periods ended June 30, 2015. Heartland was required to pledge $414,000 of cash as collateral as of June 30, 2015. The swap was recorded in other liabilities with a fair value of $3,000 as of June 30, 2015. Loan Swaps Heartland enters into interest rate swap loan relationships with customers to meet their financing needs. Upon entering into these loan swaps, Heartland enters into offsetting positions with counterparties in order to minimize interest rate risk. These back-to-back loan swaps qualify as financial derivatives with the fair values reported in other assets and other liabilities on the consolidated balance sheets. As of June 30, 2015, the fair value of the swap asset was $193,000 , and the fair value of the swap liability was $193,000 . The notional amount of the back-to-back loan swaps total $16.2 million as of June 30, 2015. As of June 30, 2015, Heartland did not have any cash posted as collateral related to these back-to-back swaps, and there was no material impact to the consolidated financial statements. Mortgage Derivatives Heartland also has entered into interest rate lock commitments to originate residential mortgage loans held for sale and forward commitments to sell residential mortgage loans and mortgage backed securities that are considered derivative instruments. The fair value of these commitments is recorded on the consolidated balance sheets with the changes in fair value recorded in the consolidated statements of income as a component of net gains on sale of loans held for sale. These derivative contracts are designated as free standing derivative contracts and are not designated against specific assets and liabilities on the consolidated balance sheets or forecasted transactions and therefore do not qualify for hedge accounting treatment. The table below identifies the balance sheet category and fair values of Heartland's derivative instruments not designated as hedging instruments at June 30, 2015 , and December 31, 2014 , in thousands: Balance Sheet Category Notional Amount Fair Value June 30, 2015 Interest rate lock commitments (mortgage) Other Assets $ 197,970 $ 6,558 Forward commitments Other Assets 301,592 2,834 Forward commitments Other Liabilities 160,960 (603 ) December 31, 2014 Interest rate lock commitments (mortgage) Other Assets $ 74,863 $ 2,496 Forward commitments Other Assets 88,484 275 Forward commitments Other Liabilities 218,337 (1,619 ) The table below identifies the income statement category of the gains and losses recognized in income on Heartland's derivative instruments not designated as hedging instruments for the three- and six-month periods ended June 30, 2015 , and June 30, 2014, in thousands: Income Statement Category Gain (Loss) Recognized Three Months Ended June 30, 2015 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ (1,712 ) Forward commitments Gains on sale of loans held for sale 3,700 Six Months Ended June 30, 2015 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ 3,832 Forward commitments Gains on sale of loans held for sale 3,575 Three Months Ended June 30, 2014 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ 3,435 Forward commitments Gains on sale of loans held for sale (1,837 ) Six Months Ended June 30, 2014 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ 5,317 Forward commitments Gains on sale of loans held for sale (2,979 )

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value	FAIR VALUE Heartland utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Securities available for sale, trading securities and derivatives are recorded in the consolidated balance sheets at fair value on a recurring basis. Additionally, from time to time, Heartland may be required to record at fair value other assets on a nonrecurring basis such as loans held for sale, loans held to maturity and certain other assets including, but not limited to, mortgage servicing rights, commercial servicing rights and other real estate owned. These nonrecurring fair value adjustments typically involve application of lower of cost or fair value accounting or write-downs of individual assets. Fair Value Hierarchy Under ASC 820, assets and liabilities are grouped at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are: Level 1 — Valuation is based upon quoted prices for identical instruments in active markets. Level 2 — Valuation is based upon quoted prices for similar instruments in active markets, or similar instruments in markets that are not active, and model-based valuation techniques for all significant assumptions are observable in the market. Level 3 — Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques. The following is a description of valuation methodologies used for assets and liabilities recorded at fair value on a recurring or non-recurring basis. Assets Securities Available for Sale and Held to Maturity Securities available for sale are recorded at fair value on a recurring basis. Securities held to maturity are generally recorded at cost and are recorded at fair value only to the extent a decline in fair value is determined to be other-than-temporary. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security's credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, as well as U.S. Treasury securities. Level 2 securities include U.S. government and agency securities, mortgage-backed securities and private collateralized mortgage obligations, municipal bonds and corporate debt securities. Level 3 securities consist primarily of Z-TRANCHE mortgage-backed securities and corporate debt securities. On a quarterly basis, a secondary independent pricing service is used for a sample of securities to validate the pricing from Heartland's primary pricing service. Trading Assets Trading assets are recorded at fair value and consist of securities held for trading purposes. The valuation method for trading securities is the same as the methodology used for securities classified as available for sale. Loans Held for Sale Loans held for sale are carried at the lower of cost or fair value on an aggregate basis. The fair value of loans held for sale is based on what secondary markets are currently offering for portfolios with similar characteristics. As such, Heartland classifies loans held for sale subjected to nonrecurring fair value adjustments as Level 2. Loans Held to Maturity Heartland does not record loans held to maturity at fair value on a recurring basis. However, from time to time, a loan is considered impaired and an allowance for loan losses is established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment in accordance with ASC 310. The fair value of impaired loans is measured using one of the following impairment methods: 1) the present value of expected future cash flows discounted at the loan's effective interest rate or 2) the observable market price of the loan or 3) the fair value of the collateral if the loan is collateral dependent. In accordance with ASC 820, impaired loans measured at fair value are classified as nonrecurring Level 3 in the fair value hierarchy. Mortgage Servicing Rights Mortgage servicing rights assets represent the value associated with servicing residential real estate loans that have been sold to outside investors with servicing retained. Heartland uses the amortization method (i.e., the lower of amortized cost or estimated fair value measured on a nonrecurring basis), not fair value measurement accounting, to determine the carrying value of its mortgage servicing rights. The fair value for servicing assets is determined through discounted cash flow analysis and utilizes discount rates, prepayment speeds and delinquency rate assumptions as inputs. All of these assumptions require a significant degree of management estimation and judgment. Mortgage servicing rights are subject to impairment testing. The carrying values of these rights are reviewed quarterly for impairment based upon the calculation of fair value as performed by an outside third party. For purposes of measuring impairment, the rights are stratified into certain risk characteristics including note type and note term. If the valuation model reflects a fair value less than the carrying value, mortgage servicing rights are adjusted to fair value through a valuation allowance. Heartland classifies mortgage servicing rights as nonrecurring with Level 3 measurement inputs. Commercial Servicing Rights Commercial servicing rights assets represent the value associated with servicing commercial loans that have been sold to Small Business Administration and United States Department of Agriculture with servicing retained. Heartland uses the amortization method (i.e., the lower of amortized cost or estimated fair value measured on a nonrecurring basis), not fair value measurement accounting, to determine the carrying value of its commercial servicing rights. The fair value for servicing assets is determined through market prices for comparable servicing contracts, when available, or through a valuation model that calculates the present value of estimated future net servicing income. Inputs utilized include discount rates, prepayment speeds and delinquency rate assumptions as inputs. All of these assumptions require a significant degree of management estimation and judgment. Commercial servicing rights are subject to impairment testing, and the carrying values of these rights are reviewed quarterly for impairment based upon the calculation of fair value as performed by an outside third party. If the valuation model reflects a fair value less than the carrying value, commercial servicing rights are adjusted to fair value through a valuation allowance. Heartland classifies commercial servicing rights as nonrecurring with Level 3 measurement inputs. Derivative Financial Instruments Heartland's current interest rate risk strategy includes interest rate swaps. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. To comply with the provisions of ASC 820, Heartland incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty's nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, Heartland has considered the impact of netting any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. Although Heartland has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of June 30, 2015 , and December 31, 2014 , Heartland has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, Heartland has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy. Interest rate lock commitments Heartland uses an internal valuation model that relies on internally developed inputs to estimate the fair value of its interest rate lock commitments which is based on unobservable inputs that reflect management's assumptions and specific information about each borrower. Interest rate lock commitments are classified in Level 3 of the fair value hierarchy. Forward commitments The fair value of forward commitments are estimated using an internal valuation model, which includes current trade pricing for similar financial instruments in active markets that Heartland has the ability to access and are classified in Level 2 of the fair value hierarchy. Other Real Estate Owned Other real estate owned ("OREO") represents property acquired through foreclosures and settlements of loans. Property acquired is carried at the fair value of the property at the time of acquisition (representing the property's cost basis), plus any acquisition costs, or the estimated fair value of the property, less disposal costs. Heartland considers third party appraisals, as well as independent fair value assessments from realtors or persons involved in selling OREO, in determining the fair value of particular properties. Accordingly, the valuation of OREO is subject to significant external and internal judgment. Heartland periodically reviews OREO to determine if the fair value of the property, less disposal costs, has declined below its recorded book value and records any adjustments accordingly. OREO is classified as nonrecurring Level 3. The table below presents Heartland's assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2015 , and December 31, 2014 , in thousands, aggregated by the level in the fair value hierarchy within which those measurements fall: Total Fair Value Level 1 Level 2 Level 3 June 30, 2015 Assets Securities available for sale U.S. government corporations and agencies $ 15,802 $ 523 $ 15,279 $ — Mortgage-backed securities 1,108,050 — 1,102,523 5,527 Obligations of states and political subdivisions 186,001 — 186,001 — Corporate debt securities 740 — — 740 Equity securities 5,106 — 5,106 — Derivative financial instruments 1,136 — 1,136 — Interest rate lock commitments 6,558 — — 6,558 Forward commitments 2,834 — 2,834 — Total assets at fair value $ 1,326,227 $ 523 $ 1,312,879 $ 12,825 Liabilities Derivative financial instruments $ 3,607 $ — $ 3,607 $ — Forward commitments 603 — 603 — Total liabilities at fair value $ 4,210 $ — $ 4,210 $ — December 31, 2014 Assets Securities available for sale U.S. government corporations and agencies $ 24,093 $ 2,529 $ 21,564 $ — Mortgage-backed securities 1,219,266 — 1,214,319 4,947 Obligations of states and political subdivisions 153,426 — 153,426 — Corporate debt securities — — — — Equity securities 5,083 — 5,083 — Interest rate lock commitments 2,496 — — 2,496 Forward commitments 275 — 275 — Total assets at fair value $ 1,404,639 $ 2,529 $ 1,394,667 $ 7,443 Liabilities Derivative financial instruments $ 3,646 $ — $ 3,646 $ — Forward commitments 1,619 — 1,619 — Total liabilities at fair value $ 5,265 $ — $ 5,265 $ — The tables below present Heartland's assets that are measured at fair value on a nonrecurring basis, in thousands: Fair Value Measurements at June 30, 2015 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Year-to- Date Losses Collateral dependent impaired loans: Commercial $ — $ — $ — $ — $ — Commercial real estate 4,927 — — 4,927 160 Agricultural and agricultural real estate — — — — — Residential real estate 2,662 — — 2,662 63 Consumer 1,854 — — 1,854 — Total collateral dependent impaired loans $ 9,443 $ — $ — $ 9,443 $ 223 Other real estate owned $ 16,983 $ — $ — $ 16,983 $ 855 Fair Value Measurements at December 31, 2014 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Year-to- Date Losses Collateral dependent impaired loans: Commercial $ 1,033 $ — $ — $ 1,033 $ 659 Commercial real estate 12,584 — — 12,584 492 Agricultural and agricultural real estate 552 — — 552 2,229 Residential real estate 3,173 — — 3,173 — Consumer 2,003 — — 2,003 22 Total collateral dependent impaired loans $ 19,345 $ — $ — $ 19,345 $ 3,402 Other real estate owned $ 19,016 $ — $ — $ 19,016 $ 1,938 The following tables present additional quantitative information about assets measured at fair value and for which Heartland has utilized Level 3 inputs to determine fair value, in thousands: Fair Value at 6/30/15 Valuation Technique Unobservable Input Range (Weighted Average) Z-TRANCHE Securities $ 5,527 Discounted cash flows Pretax discount rate 7.00 - 9.00% Actual defaults 16.29 - 36.53% (29.70%) Actual deferrals 5.60 - 27.01% (17.21%) Corporate debt securities 740 Discounted cash flows Bank analysis (1) Interest rate lock commitments 6,558 Discounted cash flows Closing ratio (2) Collateral dependent impaired loans: Commercial — Modified appraised value Third party appraisal (3) Appraisal discount (3) Commercial real estate 4,927 Modified appraised value Third party appraisal (3) Appraisal discount (3) Agricultural and agricultural real estate — Modified appraised value Third party appraisal (3) Appraisal discount (3) Residential real estate 2,662 Modified appraised value Third party appraisal (3) Appraisal discount (3) Consumer 1,854 Modified appraised value Third party valuation (3) Valuation discount (3) Other real estate owned 16,983 Modified appraised value Third party appraisal (3) Appraisal discount (3) (1) The unobservable input is the bank analysis market using Moody's Global Bank Rating Methodology. The analysis takes into consideration various performance metrics as well as yield on the debt securities and credit risk analysis. (2) The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at June 30, 2015, was 86%. (3) Third party appraisals are obtained as to the value of the underlying asset, but disclosure of this information would not provide meaningful information, as the range will vary widely from loan to loan. Types of discounts considered included age of the appraisal, local market conditions, current condition of the property, and estimated sales costs. These discounts will also vary from loan to loan, thus providing range would not be meaningful. Fair Value at 12/31/14 Valuation Technique Unobservable Input Range (Weighted Average) Z-TRANCHE Securities $ 4,947 Discounted cash flows Pretax discount rate 7.00 - 9.00% Actual defaults 15.60 - 30.60% (24.50%) Actual deferrals 7.20 - 17.30% (12.90%) Corporate debt securities — Discounted cash flows Bank analysis (1) Interest rate lock commitments 2,496 Discounted cash flows Closing ratio (2) Collateral dependent impaired loans: Commercial 1,033 Modified appraised value Third party appraisal (3) Appraisal discount (3) Commercial real estate 12,584 Modified appraised value Third party appraisal (3) Appraisal discount (3) Agricultural and agricultural real estate 552 Modified appraised value Third party appraisal (3) Appraisal discount (3) Residential real estate 3,173 Modified appraised value Third party appraisal (3) Appraisal discount (3) Consumer 2,003 Modified appraised value Third party valuation (3) Valuation discount (3) Other real estate owned 19,016 Modified appraised value Third party appraisal (3) Appraisal discount (3) (1) The unobservable input is the bank analysis market using Moody's Global Bank Rating Methodology. The analysis takes into consideration various performance metrics as well as yield on the debt securities and credit risk analysis. (2) The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at December 31, 2014, was 84%. (3) Third party appraisals are obtained as to the value of the underlying asset, but disclosure of this information would not provide meaningful information, as the range will vary widely from loan to loan. Types of discounts considered included age of the appraisal, local market conditions, current condition of the property, and estimated sales costs. These discounts will also vary from loan to loan, thus providing range would not be meaningful. The changes in fair value of the Z-TRANCHE, a Level 3 asset, that is measured on a recurring basis are summarized in the following table, in thousands: For the Six Months Ended June 30, 2015 For the Year Ended December 31, 2014 Balance at January 1, $ 4,947 $ 3,298 Total gains (losses): Included in earnings — — Included in other comprehensive income 696 1,783 Purchases, sales and settlements: Purchases 6 — Sales — — Settlements (122 ) (134 ) Balance at period end $ 5,527 $ 4,947 The changes in fair value of the corporate debt securities, Level 3 assets, that are measured on a recurring basis is summarized in the following table, in thousands: For the Six Months Ended June 30, 2015 For the Year Ended December 31, 2014 Balance at January 1, $ — $ — Total gains (losses): Included in earnings — — Included in other comprehensive income — — Purchases, acquired, sales and settlements: Purchases — — Acquired 740 — Sales — — Settlements — — Balance at period end $ 740 $ — The changes in fair value of the interest rate lock commitments, which are Level 3 financial instruments and are measured on a recurring basis, are summarized in the following table, in thousands: For the Six Months Ended June 30, 2015 For the Year Ended December 31, 2014 Balance at January 1, $ 2,496 $ 1,809 Total gains (losses) included in earnings 3,832 2,422 Issuances 2,530 2,038 Settlements (2,300 ) (3,773 ) Balance at period end $ 6,558 $ 2,496 Gains included in net gains on sale of loans held for sale attributable to interest rate lock commitments held at June 30, 2015, and December 31, 2014, were $6.6 million and $2.5 million , respectively. The tables below summarize the estimated fair value of Heartland's financial instruments as defined by ASC 825 as of June 30, 2015 , and December 31, 2014 , in thousands. The carrying amounts in the following tables are recorded in the consolidated balance sheets under the indicated captions. In accordance with ASC 825, the assets and liabilities that are not financial instruments are not included in the disclosure, such as the value of the mortgage servicing rights, premises, furniture and equipment, goodwill and other intangibles and other liabilities. Heartland does not believe that the estimated information presented herein is representative of the earnings power or value of Heartland. The following analysis, which is inherently limited in depicting fair value, also does not consider any value associated with either existing customer relationships or the ability of Heartland to create value through loan origination, deposit gathering or fee generating activities. Many of the estimates presented herein are based upon the use of highly subjective information and assumptions and, accordingly, the results may not be precise. Management believes that fair value estimates may not be comparable between financial institutions due to the wide range of permitted valuation techniques and numerous estimates which must be made. Furthermore, because the disclosed fair value amounts were estimated as of the balance sheet date, the amounts actually realized or paid upon maturity or settlement of the various financial instruments could be significantly different. Fair Value Measurements at June 30, 2015 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 119,722 $ 119,722 $ 119,722 $ — $ — Time deposits in other financial institutions 2,355 2,355 2,355 — — Securities: Available for sale 1,315,699 1,315,699 523 1,308,909 6,267 Held to maturity 283,258 292,564 — 292,564 — Other investments 20,455 20,455 — 20,220 235 Loans held for sale 105,898 105,898 — 105,898 — Loans, net: Commercial 1,176,157 1,165,559 — 1,165,559 — Commercial real estate 1,991,799 1,993,635 — 1,988,708 4,927 Agricultural and agricultural real estate 440,864 443,725 — 443,725 — Residential real estate 438,184 435,955 — 433,293 2,662 Consumer 357,205 360,176 — 358,322 1,854 Total Loans, net 4,404,209 4,399,050 — 4,389,607 9,443 Derivative financial instruments 1,136 1,136 — 1,136 — Interest rate lock commitments 6,558 6,558 — — 6,558 Forward commitments 2,834 2,834 — 2,834 — Financial liabilities: Deposits Demand deposits 1,536,355 1,536,355 — 1,536,355 — Savings deposits 2,816,666 2,816,666 — 2,816,666 — Time deposits 964,248 964,248 — 964,248 — Short term borrowings 477,918 477,918 — 477,918 — Other borrowings 296,594 299,845 — 299,845 — Derivative financial instruments 3,607 3,607 — 3,607 — Forward commitments 603 603 — 603 — Fair Value Measurements at December 31, 2014 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 73,871 $ 73,871 $ 73,871 $ — $ — Time deposits in other financial institutions 2,605 2,605 2,605 — — Securities: Available for sale 1,401,868 1,401,868 2,529 1,394,392 4,947 Held to maturity 284,587 296,768 — 296,768 — Other investments 20,498 20,498 — 20,263 235 Loans held for sale 70,514 70,514 — 70,514 — Loans, net: Commercial 1,024,065 1,009,802 — 1,008,769 1,033 Commercial real estate 1,690,899 1,699,722 — 1,687,138 12,584 Agricultural and agricultural real estate 420,623 423,968 — 423,416 552 Residential real estate 377,094 370,178 — 367,005 3,173 Consumer 323,873 330,211 — 328,208 2,003 Total Loans, net 3,836,554 3,833,881 — 3,814,536 19,345 Derivative financial instruments — — — — — Interest rate lock commitments 2,496 2,496 — — 2,496 Forward commitments 275 275 — 275 — Financial liabilities: Deposits Demand deposits 1,295,193 1,295,193 — 1,295,193 — Savings deposits 2,687,493 2,687,493 — 2,687,493 — Time deposits 785,336 785,336 — 785,336 — Short term borrowings 330,264 330,264 — 330,264 — Other borrowings 396,255 401,978 — 401,978 — Derivative financial instruments 3,646 3,646 — 3,646 — Forward commitments 1,619 1,619 — 1,619 — Cash and Cash Equivalents — The carrying amount is a reasonable estimate of fair value due to the short-term nature of these instruments. Time Deposits in Other Financial Institutions — The carrying amount is a reasonable estimate of fair value due to the short-term nature of these instruments. Securities — For securities either held to maturity, available for sale or trading, fair value equals quoted market price if available. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities. For Level 3 securities, Heartland utilizes independent pricing provided by third party vendors or brokers. Other Investments — Fair value measurement of other investments, which consists primarily of FHLB stock, are based on their redeemable value, which is at cost due to the restrictions placed on their transferability. The market for these securities is restricted to the issuer of the stock and subject to impairment evaluation. Loans and Leases — The fair value of loans is estimated using an entrance price concept by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. The fair value of impaired loans is measured using the present value of expected future cash flows discounted at the loan's effective interest rate or the fair value of the underlying collateral. The fair value of loans held for sale is estimated using quoted market prices. Interest Rate Lock Commitments — The fair value of interest rate lock commitments is estimated using an internal valuation model, which includes grouping the interest rate lock commitments by interest rate and terms, applying an estimated closing ratio based on historical experience, and then multiplying by quoted investor prices determined to be reasonably applicable to the loan commitment groups based on interest rate, terms, and rate lock expiration dates of the loan commitment group. Forward Commitments — The fair value of these instruments is estimated using an internal valuation model, which includes current trade pricing for similar financial instruments. Derivative Financial Instruments — The fair value of all derivatives is estimated based on the amount that Heartland would pay or would be paid to terminate the contract or agreement, using current rates and, when appropriate, the current creditworthiness of the counter-party. Deposits — The fair value of demand deposits, savings accounts and certain money market deposits is the amount payable on demand at the reporting date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities. If the fair value of the fixed maturity certificates of deposit is calculated at less than the carrying amount, the carrying value of these deposits is reported as the fair value. Short-term and Other Borrowings — Rates currently available to Heartland for debt with similar terms and remaining maturities are used to estimate fair value of existing debt. Commitments to Extend Credit, Unused Lines of Credit and Standby Letters of Credit — Based upon management's analysis of the off balance sheet financial instruments, there are no significant unrealized gains or losses associated with these financial instruments based upon review of the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties.

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Reporting	SEGMENT REPORTING Heartland has identified two operating segments for purposes of financial reporting: community and other banking, and retail mortgage banking. These segments were determined based on the products and services provided or the type of customers served and are consistent with the information used by Heartland's key decision makers to make operating decisions and to assess Heartland's performance. The following tables present financial information from Heartland's operating segments for the three - and six-month periods ended June 30, 2015 , and June 30, 2014, in thousands. Three Months Ended June 30, 2015 2014 Community and Other Banking Retail Mortgage Banking Total Community and Other Banking Retail Mortgage Banking Total Net interest income $ 55,988 $ 1,656 $ 57,644 $ 50,285 $ 514 $ 50,799 Provision for loan losses 5,674 — 5,674 2,751 — 2,751 Total noninterest income 15,603 15,058 30,661 11,991 9,544 21,535 Total noninterest expense 48,987 14,495 63,482 43,543 11,116 54,659 Income (loss) before taxes $ 16,930 $ 2,219 $ 19,149 $ 15,982 $ (1,058 ) $ 14,924 Average Loans, for the period $ 4,340,289 $ 106,835 $ 4,447,124 $ 3,621,543 $ 70,616 $ 3,692,159 Segment Assets, at period end $ 6,579,225 $ 137,782 $ 6,717,007 $ 5,799,636 $ 114,282 $ 5,913,918 Six Months Ended 2015 2014 Community Retail Total Community Retail Total Net interest income $ 108,877 $ 2,697 $ 111,574 $ 98,140 $ 1,271 $ 99,411 Provision for loan losses 7,345 — 7,345 9,082 — 9,082 Total noninterest income 32,664 28,660 61,324 23,517 16,868 40,385 Total noninterest expense 96,446 26,650 123,096 85,880 21,317 107,197 Income (loss) before taxes $ 37,750 $ 4,707 $ 42,457 $ 26,695 $ (3,178 ) $ 23,517 Average Loans, for the period $ 4,265,624 $ 92,231 $ 4,357,855 $ 3,575,284 $ 56,693 $ 3,631,977 Segment Assets, at period end $ 6,579,225 $ 137,782 $ 6,717,007 $ 5,799,636 $ 114,282 $ 5,913,918

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is determined using net income available to common stockholders and weighted average common shares outstanding. Diluted earnings per share is computed by dividing net income available to common stockholders by the weighted average common shares and assumed incremental common shares issued.
Stock-Based Compensation	Stock-Based Compensation Heartland may grant, through its Nominating and Compensation Committee (the "Compensation Committee"), non-qualified and incentive stock options, stock appreciation rights, stock awards, restricted stock, restricted stock units and cash incentive awards, under its 2012 Long-Term Incentive Plan (the "Plan"). The Plan, which was approved by stockholders in May 2012 and replaced Heartland's 2005 Long-Term Incentive Plan with respect to grants after such approval, reserved 265,153 shares of common stock at June 30, 2015, for issuance under future awards that may be granted under the Plan to employees and directors of, and service providers to, Heartland or its subsidiaries. Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 718, " Compensation-Stock Compensation " requires the measurement of the cost of employee services received in exchange for an award of equity instruments based upon the fair value of the award on the grant date. The cost of the award is based upon its fair value estimated on the date of grant and recognized in the consolidated statements of income over the vesting period of the award. The fair market value of restricted stock and restricted stock units is based on the fair value of the underlying shares of common stock on the date of grant. The fair value of stock options is estimated on the date of grant using the Black-Scholes model.
Effect of New Financial Accounting Standards	Effect of New Financial Accounting Standards In January 2014, the FASB issued ASU 2014-01, " Accounting for Investments in Qualified Affordable Housing Projects ." The amendments in ASU 2014-01 to Topic 323, " Equity Investments and Joint Ventures ," provide guidance on accounting for investments by a reporting entity in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for the low-income housing tax credit. The amendments permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefit received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2014, and should be applied retrospectively to all periods presented. Heartland elected to use the proportional amortization method for equity investments in qualified affordable housing projects that meet the conditions specified in ASU-2014-01. Heartland adopted this standard on January 1, 2015, and the adoption did not have a material impact on the results of operations, financial position, and liquidity. In January 2014, the FASB issued ASU 2014-04, " Receivables-Troubled Debt Restructurings by Creditors: Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans Upon Foreclosure. " The amendments in ASU 2014-04 clarify that an in-substance foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (i) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (ii) the borrower conveying all interest in the residential real estate property to the creditor to satisfy the loan through completion of a deed in lieu of foreclosure or similar legal agreement. ASU 2014-04 also requires disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in loans collateralized by residential real estate property that are in the process of foreclosure. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2014, with early adoption permitted. Once adopted, an entity can elect either (i) a modified retrospective transition method or (ii) a prospective transition method. The modified retrospective transition method is applied by means of a cumulative-effect adjustment to residential mortgage loans and foreclosed residential real estate properties existing as of the beginning of the period for which the amendments of ASU 2014-04 are effective, with real estate reclassified to loans measured at the carrying value of the real estate at the date of adoption and loans reclassified to real estate measured at the lower of net carrying value of the loan or the fair value of the real estate less costs to sell at the date of adoption. The prospective transition method is applied by means of applying the amendments of ASU 2014-04 to all instances of receiving physical possession of residential real estate properties that occur after the date of adoption. Heartland adopted this standard on January 1, 2015, and the adoption did not have a material impact on the results of operations, financial position, and liquidity. As of June 30, 2015, Heartland had not received possession of any residential real estate properties that meet the disclosure requirements. In May 2014, the FASB issued ASU 2014-09, " Revenue from Contracts with Customers ." The amendment clarifies the principles for recognizing revenue and develops a common revenue standard. The amendment outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” In applying the revenue model to contracts within its scope, an entity should apply the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) the entity satisfies a performance obligation. The amendment applies to all contracts with customers except those that are within the scope of other topics in the FASB Codification. The standard also requires significantly expanded disclosures about revenue recognition. The amendment is effective for annual reporting periods beginning after December 15, 2017 (including interim reporting periods within those periods). Early application is not permitted. Heartland intends to adopt the accounting standard during the first quarter of 2018, as required, and is currently evaluating the impact on its results of operations, financial position, and liquidity. In August 2014, the FASB issued ASU 2014-14, " Receivables-Troubled Debt Restructurings by Creditors: Classification of Certain Government-Guaranteed Mortgage Loans Upon Foreclosure." The amendment clarifies how creditors are to classify certain government-guaranteed mortgage loans upon foreclosure. The amendment requires that a mortgage loan be derecognized and a separate other receivable be recognized upon foreclosure if the following conditions are met: (1) the loan has a government guarantee that is not separate from the loan before foreclosure, and (2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under the claim, and (3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured on the amount of the loan balance (principal and interest) expected to be recovered for the guarantor. This amendment is effective for annual reporting periods, and interim reporting periods within those years, beginning after December 15, 2014, with early adoption permitted. Heartland adopted this standard on January 1, 2015, and the adoption did not have an impact on the results of operations, financial position, and liquidity. In January 2015, the FASB issued ASU 2015-01, " Income Statement-Extraordinary and Unusual Items ." The amendment eliminates from U.S. GAAP the concept of extraordinary items. Presently, an event or transaction is presumed to be an ordinary and usual activity of the reporting entity unless evidence clearly supports its classification as an extraordinary item. If an event or transaction meets the criteria for extraordinary classification, an entity is required to segregate the extraordinary item from the results of ordinary operations and show the item separately in the income statement, net of tax, after income from continuing operations. This amended guidance will prohibit separate disclosure of extraordinary items in the income statement. This amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Entities may apply the amendment prospectively or retrospectively to all prior periods presented in the financial statements. Early adoption is permitted provided that the guidance is applied from the beginning of the fiscal year of adoption. Heartland does not expect the adoption of this standard to have a material impact on the results of operations, financial position, and liquidity. In April 2015, the FASB issued ASU 2015-03, " Interest-Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs. " The amendment intends to simplify the presentation of debt issuance costs and more closely align the presentation of debt issuance costs under U.S. GAAP with the presentation under comparable International Financial Reporting Standards. The cost of issuing debt will no longer be recorded as a separate asset, except when incurred before receipt of the funding from the associated debt liability. Debt issuance costs related to a recognized debt liability are to be presented on the balance sheet as a direct reduction from the debt liability, similar to the presentation of debt premiums or discounts. The costs will continue to be amortized to interest expense using the effective interest method. This amendment is effective for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The ASU requires retrospective application to all prior periods presented in the financial statements. Heartland adopted this standard effective March 31, 2015, at which time $550,000 was reclassified from other assets to other borrowings on the consolidated balance sheet for all periods presented. The adoption of this standard did not have a material impact on the results of operations, financial position, and liquidity.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Amounts used in the determination of basic and diluted earnings per share for the six-month periods ended June 30, 2015 and 2014, are shown in the table below: Three Months Ended June 30, (Dollars and number of shares in thousands, except per share data) 2015 2014 Net income attributable to Heartland $ 15,160 $ 10,774 Preferred dividends and discount (204 ) (204 ) Net income available to common stockholders $ 14,956 $ 10,570 Weighted average common shares outstanding for basic earnings per share 20,599 18,458 Assumed incremental common shares issued upon exercise of stock options and non-vested restricted stock units 278 289 Weighted average common shares for diluted earnings per share 20,877 18,747 Earnings per common share — basic $ 0.73 $ 0.57 Earnings per common share — diluted $ 0.72 $ 0.56 Number of antidilutive common stock equivalents excluded from diluted earnings per share computation — 95 Six Months Ended June 30, (Dollars and number of shares in thousands, except per share data) 2015 2014 Net income attributable to Heartland $ 30,869 $ 17,664 Preferred dividends and discount (408 ) (408 ) Net income available to common stockholders $ 30,461 $ 17,256 Weighted average common shares outstanding for basic earnings per share 20,408 18,448 Assumed incremental common shares issued upon exercise of stock options and non-vested restricted stock units 274 291 Weighted average common shares for diluted earnings per share 20,682 18,739 Earnings per common share — basic $ 1.49 $ 0.94 Earnings per common share — diluted $ 1.47 $ 0.92 Number of antidilutive common stock equivalents excluded from diluted earnings per share computation — 95
Summary of RSUs	A summary of the status of the RSUs as of June 30, 2015 and 2014, and changes during the six months ended June 30, 2015 and 2014, follows: 2015 2014 Shares Weighted-Average Grant Date Fair Value Shares Weighted-Average Grant Date Fair Value Outstanding at January 1 396,555 $ 21.48 353,070 $ 18.48 Granted 139,943 28.90 131,235 26.69 Vested (151,681 ) 17.98 (73,224 ) 16.65 Forfeited (11,198 ) 25.14 (3,901 ) 19.10 Outstanding at June 30 373,619 $ 25.55 407,180 $ 21.53
Schedule of Status of Stock Options	A summary of the status of the stock options as of June 30, 2015 and 2014, and changes during the six months ended June 30, 2015 and 2014, follows: 2015 2014 Shares Weighted-Average Exercise Price Shares Weighted-Average Exercise Price Outstanding at January 1 215,851 $ 23.85 261,936 $ 23.60 Granted — — — — Exercised (56,650 ) 22.85 (5,000 ) 19.13 Forfeited (2,250 ) 23.88 (6,500 ) 26.39 Outstanding at June 30 156,951 $ 24.18 250,436 $ 23.62 Options exercisable at June 30 156,951 $ 24.18 250,436 $ 23.62

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table represents, in thousands, the amounts recorded on the consolidated balance sheet as of January 16, 2015: As of January 16, 2015 Fair value of consideration paid Common Stock $ 53,052 Cash 6 Total consideration paid 53,058 Fair value of assets acquired Cash and due from banks 7,109 Securities: Securities available for sale 52,976 Other securities 1,284 Loans held for sale 728 Loans held to maturity 395,007 Premises, furniture and equipment, net 13,954 Other real estate, net 346 Other intangible assets, net 10,295 Other assets 25,066 Total assets 506,765 Fair value of liabilities assumed Deposits 433,919 Short term borrowings 24,836 Other borrowings 6,097 Other liabilities 7,434 Total liabilities assumed 472,286 Fair value of net assets acquired 34,479 Goodwill resulting from acquisition $ 18,579
Business Acquisition, Pro Forma Information	The following pro forma information presents the results of operations for the years ended December 31, 2014, and December 31, 2013, as if the Community Banc-Corp of Sheboygan, Inc. acquisition occurred on January 1, 2013: (Dollars in thousands, except per share data) For the Years Ended December 31, 2014 December 31, 2013 Net interest income $ 220,358 $ 179,001 Net income $ 44,710 $ 42,105 Basic earnings per share $ 2.19 $ 2.20 Diluted earnings per share $ 2.16 $ 2.17

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities	The amortized cost, gross unrealized gains and losses, and estimated fair values of securities available for sale as of June 30, 2015 , and December 31, 2014 , are summarized in the table below, in thousands: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value June 30, 2015 U.S. government corporations and agencies $ 15,701 $ 101 $ — $ 15,802 Mortgage-backed securities 1,101,835 15,575 (9,360 ) 1,108,050 Obligations of states and political subdivisions 185,167 2,611 (1,777 ) 186,001 Corporate debt securities 740 — — 740 Total debt securities 1,303,443 18,287 (11,137 ) 1,310,593 Equity securities 5,045 61 — 5,106 Total $ 1,308,488 $ 18,348 $ (11,137 ) $ 1,315,699 December 31, 2014 U.S. government corporations and agencies $ 24,010 $ 98 $ (15 ) $ 24,093 Mortgage-backed securities 1,219,305 11,929 (11,968 ) 1,219,266 Obligations of states and political subdivisions 148,450 5,304 (328 ) 153,426 Corporate debt securities — — — — Total debt securities 1,391,765 17,331 (12,311 ) 1,396,785 Equity securities 5,029 54 — 5,083 Total $ 1,396,794 $ 17,385 $ (12,311 ) $ 1,401,868
Held-to-maturity Securities	The amortized cost, gross unrealized gains and losses and estimated fair values of held to maturity securities as of June 30, 2015 , and December 31, 2014 , are summarized in the table below, in thousands: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value June 30, 2015 Mortgage-backed securities $ 5,555 $ 266 $ (816 ) $ 5,005 Obligations of states and political subdivisions 277,703 11,393 (1,537 ) 287,559 Total $ 283,258 $ 11,659 $ (2,353 ) $ 292,564 December 31, 2014 Mortgage-backed securities $ 5,734 $ 217 $ (667 ) $ 5,284 Obligations of states and political subdivisions 278,853 13,576 (945 ) 291,484 Total $ 284,587 $ 13,793 $ (1,612 ) $ 296,768
Investments Classified by Contractual Maturity Date	The amortized cost and estimated fair value of debt securities available for sale at June 30, 2015 , by contractual maturity are as follows, in thousands. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without penalties. Amortized Cost Estimated Fair Value Due in 1 year or less $ 3,378 $ 3,394 Due in 1 to 5 years 22,352 22,274 Due in 5 to 10 years 40,102 40,078 Due after 10 years 135,776 136,797 Total debt securities 201,608 202,543 Mortgage-backed securities 1,101,835 1,108,050 Equity securities 5,045 5,106 Total investment securities $ 1,308,488 $ 1,315,699 The amortized cost and estimated fair value of debt securities held to maturity at June 30, 2015 , by contractual maturity are as follows, in thousands. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without penalties. Amortized Cost Estimated Fair Value Due in 1 year or less $ 3,092 $ 3,153 Due in 1 to 5 years 13,827 14,462 Due in 5 to 10 years 59,866 62,268 Due after 10 years 200,918 207,676 Total debt securities 277,703 287,559 Mortgage-backed securities 5,555 5,005 Total investment securities $ 283,258 $ 292,564
Schedule of Realized Gain (Loss)	Gross gains and losses realized related to the sales of securities available for sale for the three- and six-month periods ended June 30, 2015 and 2014, are summarized as follows, in thousands: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Proceeds from sales $ 270,688 $ 154,603 $ 526,026 $ 509,891 Gross security gains 3,819 974 8,441 3,446 Gross security losses 709 120 978 1,811
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	The following tables summarize, in thousands, the amount of unrealized losses, defined as the amount by which cost or amortized cost exceeds fair value, and the related fair value of investments with unrealized losses in Heartland's securities portfolio as of June 30, 2015 , and December 31, 2014 . The investments were segregated into two categories: those that have been in a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 or more months. The reference point for determining how long an investment was in an unrealized loss position w as June 30, 2014, and December 31, 2013, respectively. Securities for which Heartland has taken credit-related OTTI write-downs are categorized as being "less than 12 months" or "12 months or longer" in a continuous loss position based on the point in time that the fair value declined to below the cost basis and not the period of time since the credit-related OTTI write-down. Securities available for sale Less than 12 months 12 months or longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2015 U.S. government corporations and agencies $ — $ — $ — $ — $ — $ — Mortgage-backed securities 390,432 (7,343 ) 128,712 (2,017 ) 519,144 (9,360 ) Obligations of states and political subdivisions 75,481 (1,344 ) 9,615 (433 ) 85,096 (1,777 ) Total temporarily impaired securities $ 465,913 $ (8,687 ) $ 138,327 $ (2,450 ) $ 604,240 $ (11,137 ) December 31, 2014 U.S. government corporations and agencies $ 6,042 $ (15 ) $ — $ — $ 6,042 $ (15 ) Mortgage-backed securities 327,363 (7,391 ) 306,078 (4,577 ) 633,441 (11,968 ) Obligations of states and political subdivisions 886 (6 ) 20,507 (322 ) 21,393 (328 ) Total temporarily impaired securities $ 334,291 $ (7,412 ) $ 326,585 $ (4,899 ) $ 660,876 $ (12,311 )
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	Securities held to maturity Less than 12 months 12 months or longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2015 Mortgage-backed securities $ — $ — $ 1,914 $ (816 ) $ 1,914 $ (816 ) Obligations of states and political subdivisions 26,655 (466 ) 17,324 (1,071 ) 43,979 (1,537 ) Total temporarily impaired securities $ 26,655 $ (466 ) $ 19,238 $ (1,887 ) $ 45,893 $ (2,353 ) December 31, 2014 Mortgage-backed securities $ — $ — $ 2,761 $ (667 ) $ 2,761 $ (667 ) Obligations of states and political subdivisions 3,172 (422 ) 29,402 (523 ) 32,574 (945 ) Total temporarily impaired securities $ 3,172 $ (422 ) $ 32,163 $ (1,190 ) $ 35,335 $ (1,612 )
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table shows the detail of OTTI write-downs on debt securities included in earnings and the related changes in other accumulated comprehensive income ("AOCI") for the same securities, in thousands: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Recorded as part of gross realized losses: Credit related OTTI $ — $ — $ — $ — Intent to sell OTTI — — — — Total recorded as part of gross realized losses — — — — Recorded directly to AOCI for non-credit related impairment: Residential mortgage backed securities — — — — Accretion of non-credit related impairment (24 ) (24 ) (48 ) (48 ) Total changes to AOCI for non-credit related impairment (24 ) (24 ) (48 ) (48 ) Total OTTI losses (accretion) recorded on debt securities, net $ (24 ) $ (24 ) $ (48 ) $ (48 )

Loans and Leases (Tables)

Loans and Leases (Tables)	6 Months Ended
	Jun. 30, 2015
Receivables [Abstract]
Loans and Leases	Loans and leases as of June 30, 2015 , and December 31, 2014 , were as follows, in thousands: June 30, 2015 December 31, 2014 Loans and leases receivable held to maturity: Commercial $ 1,189,626 $ 1,036,080 Commercial real estate 2,010,091 1,707,060 Agricultural and agricultural real estate 444,110 423,827 Residential real estate 443,026 380,341 Consumer 364,441 330,555 Gross loans and leases receivable held to maturity 4,451,294 3,877,863 Unearned discount (234 ) (90 ) Deferred loan fees (1,237 ) (1,028 ) Total net loans and leases receivable held to maturity 4,449,823 3,876,745 Loans covered under loss share agreements: Commercial and commercial real estate — 54 Agricultural and agricultural real estate — — Residential real estate — 1,204 Consumer — — Total loans covered under loss share agreements — 1,258 Allowance for loan and lease losses (45,614 ) (41,449 ) Loans and leases receivable, net $ 4,404,209 $ 3,836,554
Allowance for Loan and Lease Losses, Based on Impairment Methodology	The following table shows the balance in the allowance for loan and lease losses at June 30, 2015 , and December 31, 2014 , and the related loan balances, disaggregated on the basis of impairment methodology, in thousands. Loans evaluated under ASC 310-10-35 include loans on nonaccrual status and troubled debt restructurings, which are individually evaluated for impairment, and other impaired loans deemed to have similar risk characteristics. All other loans are collectively evaluated for impairment under ASC 450-20. Heartland has made no significant changes to the accounting for the allowance for loan and lease losses policy during 2015. Allowance For Loan and Lease Losses Gross Loans and Leases Receivable Held to Maturity Ending Balance Under ASC 310-10-35 Ending Balance Under ASC 450-20 Total Ending Balance Evaluated for Impairment Under ASC 310-10-35 Ending Balance Evaluated for Impairment Under ASC 450-20 Total June 30, 2015 Commercial $ 238 $ 12,826 $ 13,064 $ 10,562 $ 1,179,064 $ 1,189,626 Commercial real estate 1,023 16,585 17,608 39,505 1,970,586 2,010,091 Agricultural and agricultural real estate 19 3,657 3,676 4,658 439,452 444,110 Residential real estate 411 3,688 4,099 11,928 431,098 443,026 Consumer 1,118 6,049 7,167 5,006 359,435 364,441 Total $ 2,809 $ 42,805 $ 45,614 $ 71,659 $ 4,379,635 $ 4,451,294 December 31, 2014 Commercial $ 754 $ 11,155 $ 11,909 $ 4,526 $ 1,031,554 $ 1,036,080 Commercial real estate 636 15,262 15,898 35,771 1,671,289 1,707,060 Agricultural and agricultural real estate 52 3,243 3,295 5,049 418,778 423,827 Residential real estate 442 3,299 3,741 10,235 370,106 380,341 Consumer 813 5,793 6,606 6,143 324,412 330,555 Total $ 2,697 $ 38,752 $ 41,449 $ 61,724 $ 3,816,139 $ 3,877,863
Schedule of Financing Receivables, Non Accrual Status	The following table presents nonaccrual loans, accruing loans past due 90 days or more and troubled debt restructured loans not covered under loss share agreements at June 30, 2015 , and December 31, 2014 , in thousands. There were no nonaccrual leases, accruing leases past due 90 days or more or restructured leases at June 30, 2015 , and December 31, 2014 . June 30, 2015 December 31, 2014 Nonaccrual loans $ 25,894 $ 24,205 Nonaccrual troubled debt restructured loans 816 865 Total nonaccrual loans $ 26,710 $ 25,070 Accruing loans past due 90 days or more $ — $ — Performing troubled debt restructured loans $ 10,903 $ 12,133
Troubled Debt Restructurings on Financing Receivables	The following table provides information on troubled debt restructured loans that were modified during the three and six months ended June 30, 2015 , and June 30, 2014, dollars in thousands: Three Months Ended 2015 2014 Number Pre- Post- Number Pre- Post- Commercial 1 $ 830 $ 830 — $ — $ — Commercial real estate — — — 1 298 298 Total commercial and commercial real estate 1 830 830 1 298 298 Agricultural and agricultural real estate 1 311 311 2 3,357 3,357 Residential real estate — — — 1 38 38 Consumer — — — — — — Total 1 $ 1,141 $ 1,141 4 $ 3,693 $ 3,693 Six Months Ended June 30, 2015 2014 Number of Loans Pre- Modification Recorded Investment Post- Modification Recorded Investment Number of Loans Pre- Modification Recorded Investment Post- Modification Recorded Investment Commercial 1 $ 830 $ 830 — $ — $ — Commercial real estate 1 3,992 3,992 1 298 298 Total commercial and commercial real estate 2 4,822 4,822 1 298 298 Agricultural and agricultural real estate 1 311 311 2 3,357 3,357 Residential real estate — — — 1 38 38 Consumer — — — — — — Total 3 $ 5,133 $ 5,133 4 $ 3,693 $ 3,693
Financing Receivable Credit Quality Indicators	The following table presents loans and leases not covered by loss share agreements by credit quality indicator at June 30, 2015 , and December 31, 2014 , in thousands: Pass Nonpass Total June 30, 2015 Commercial $ 1,071,508 $ 118,118 $ 1,189,626 Commercial real estate 1,834,875 175,216 2,010,091 Total commercial and commercial real estate 2,906,383 293,334 3,199,717 Agricultural and agricultural real estate 422,208 21,902 444,110 Residential real estate 424,365 18,661 443,026 Consumer 355,869 8,572 364,441 Total gross loans and leases receivable held to maturity $ 4,108,825 $ 342,469 $ 4,451,294 December 31, 2014 Commercial $ 939,717 $ 96,363 $ 1,036,080 Commercial real estate 1,567,711 139,349 1,707,060 Total commercial and commercial real estate 2,507,428 235,712 2,743,140 Agricultural and agricultural real estate 402,883 20,944 423,827 Residential real estate 361,325 19,016 380,341 Consumer 321,114 9,441 330,555 Total gross loans and leases receivable held to maturity $ 3,592,750 $ 285,113 $ 3,877,863
Past Due Financing Receivables	The following table sets forth information regarding Heartland's accruing and nonaccrual loans and leases not covered by loss share agreements at June 30, 2015 , and December 31, 2014 , in thousands: Accruing Loans and Leases 30-59 Days Past Due 60-89 Days 90 Days or More Past Due Total Past Due Current Nonaccrual Total Loans and Leases June 30, 2015 Commercial $ 3,583 $ 8 $ — $ 3,591 $ 1,183,033 $ 3,002 $ 1,189,626 Commercial real estate 3,384 111 — 3,495 1,995,011 11,585 2,010,091 Total commercial and commercial real estate 6,967 119 — 7,086 3,178,044 14,587 3,199,717 Agricultural and agricultural real estate 671 386 — 1,057 441,896 1,157 444,110 Residential real estate 1,694 152 — 1,846 432,648 8,532 443,026 Consumer 3,131 718 — 3,849 358,158 2,434 364,441 Total gross loans and leases receivable held to maturity $ 12,463 $ 1,375 $ — $ 13,838 $ 4,410,746 $ 26,710 $ 4,451,294 December 31, 2014 Commercial $ 980 $ 48 $ — $ 1,028 $ 1,032,707 $ 2,345 $ 1,036,080 Commercial real estate 1,788 111 — 1,899 1,693,554 11,607 1,707,060 Total commercial and commercial real estate 2,768 159 — 2,927 2,726,261 13,952 2,743,140 Agricultural and agricultural real estate 119 50 — 169 422,219 1,439 423,827 Residential real estate 1,037 445 — 1,482 371,982 6,877 380,341 Consumer 2,382 1,366 — 3,748 324,005 2,802 330,555 Total gross loans and leases receivable held to maturity $ 6,306 $ 2,020 $ — $ 8,326 $ 3,844,467 $ 25,070 $ 3,877,863
Allowance for Credit Losses on Financing Receivables	The following tables present, for impaired loans not covered by loss share agreements and by category of loan, the unpaid contractual balance at June 30, 2015 , and December 31, 2014 ; the outstanding loan balance recorded on the consolidated balance sheets at June 30, 2015 , and December 31, 2014 ; any related allowance recorded for those loans as of June 30, 2015 , and December 31, 2014 ; the average outstanding loan balance recorded on the consolidated balance sheets during the six months ended June 30, 2015 , and year ended December 31, 2014 ; and the interest income recognized on the impaired loans during the six months ended June 30, 2015 , and year ended December 31, 2014 , in thousands: Unpaid Contractual Balance Loan Balance Related Allowance Recorded Quarter-to- Date Avg. Loan Balance Quarter-to- Date Interest Income Recognized Year-to- Date Avg. Loan Balance Year-to- Date Interest Income Recognized June 30, 2015 Impaired loans with a related allowance: Commercial $ 273 $ 238 $ 238 $ 265 $ 3 $ 379 $ 6 Commercial real estate 2,448 2,448 1,023 1,630 4 2,428 10 Total commercial and commercial real estate 2,721 2,686 1,261 1,895 7 2,807 16 Agricultural and agricultural real estate 1,513 1,513 19 2,711 — 2,983 39 Residential real estate 2,793 2,624 411 2,431 5 2,531 9 Consumer 2,972 2,972 1,118 2,889 7 2,735 11 Total impaired loans with a related allowance $ 9,999 $ 9,795 $ 2,809 $ 9,926 $ 19 $ 11,056 $ 75 Impaired loans without a related allowance: Commercial $ 10,324 $ 10,324 $ — $ 8,163 $ 141 $ 5,813 $ 174 Commercial real estate 40,650 37,057 — 34,798 366 33,449 657 Total commercial and commercial real estate 50,974 47,381 — 42,961 507 39,262 831 Agricultural and agricultural real estate 3,145 3,145 — 2,205 46 2,082 49 Residential real estate 9,380 9,304 — 8,942 12 8,356 71 Consumer 2,034 2,034 — 2,238 12 2,656 23 Total impaired loans without a related allowance $ 65,533 $ 61,864 $ — $ 56,346 $ 577 $ 52,356 $ 974 Total impaired loans held to maturity: Commercial $ 10,597 $ 10,562 $ 238 $ 8,428 $ 144 $ 6,192 $ 180 Commercial real estate 43,098 39,505 1,023 36,428 370 35,877 667 Total commercial and commercial real estate 53,695 50,067 1,261 44,856 514 42,069 847 Agricultural and agricultural real estate 4,658 4,658 19 4,916 46 5,065 88 Residential real estate 12,173 11,928 411 11,373 17 10,887 80 Consumer 5,006 5,006 1,118 5,127 19 5,391 34 Total impaired loans held to maturity $ 75,532 $ 71,659 $ 2,809 $ 66,272 $ 596 $ 63,412 $ 1,049 Unpaid Contractual Balance Loan Balance Related Allowance Recorded Year-to- Date Avg. Loan Balance Year-to- Date Interest Income Recognized December 31, 2014 Impaired loans with a related allowance: Commercial $ 780 $ 780 $ 754 $ 5,594 $ 19 Commercial real estate 7,356 7,322 636 5,931 303 Total commercial and commercial real estate 8,136 8,102 1,390 11,525 322 Agricultural and agricultural real estate 3,317 3,317 52 3,966 104 Residential real estate 2,412 2,244 442 3,398 12 Consumer 2,799 2,799 813 4,053 19 Total impaired loans with a related allowance $ 16,664 $ 16,462 $ 2,697 $ 22,942 $ 457 Impaired loans without a related allowance: Commercial $ 4,913 $ 3,746 $ — $ 3,499 $ 101 Commercial real estate 32,708 28,449 — 24,522 1,172 Total commercial and commercial real estate 37,621 32,195 — 28,021 1,273 Agricultural and agricultural real estate 3,961 1,732 — 3,308 13 Residential real estate 8,200 7,991 — 6,267 110 Consumer 3,350 3,344 — 1,870 127 Total impaired loans without a related allowance $ 53,132 $ 45,262 $ — $ 39,466 $ 1,523 Total impaired loans held to maturity: Commercial $ 5,693 $ 4,526 $ 754 $ 9,093 $ 120 Commercial real estate 40,064 35,771 636 30,453 1,475 Total commercial and commercial real estate 45,757 40,297 1,390 39,546 1,595 Agricultural and agricultural real estate 7,278 5,049 52 7,274 117 Residential real estate 10,612 10,235 442 9,665 122 Consumer 6,149 6,143 813 5,923 146 Total impaired loans held to maturity $ 69,796 $ 61,724 $ 2,697 $ 62,408 $ 1,980
Impaired Financing Receivables	The carrying amount of the loans acquired with the acquisition of Community Bank & Trust at June 30, 2015 , consisted of purchased impaired and nonimpaired loans as summarized in the following table, in thousands: June 30, 2015 Impaired Non Impaired Total Loans Commercial $ — $ 82,415 $ 82,415 Commercial real estate 7,755 211,377 219,132 Agricultural and agricultural real estate — 2,937 2,937 Residential real estate — 23,419 23,419 Consumer loans — 18,116 18,116 Total Loans $ 7,755 $ 338,264 $ 346,019

Allowance for Loan and Lease 24

Allowance for Loan and Lease Losses (Tables)	6 Months Ended
	Jun. 30, 2015
Allowance for Loan and Lease Losses [Abstract]
Allowance for Credit Losses on Financing Receivables	Changes in the allowance for loan and lease losses for the six months ended June 30, 2015 , and June 30, 2014, were as follows, in thousands: Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at March 31,2015 $ 11,688 $ 16,635 $ 3,216 $ 3,745 $ 6,570 $ — $ 41,854 Charge-offs (682 ) (371 ) (275 ) (55 ) (1,351 ) — (2,734 ) Recoveries 111 370 2 70 267 — 820 Provision 1,947 974 733 339 1,681 — 5,674 Balance at June 30, 2015 $ 13,064 $ 17,608 $ 3,676 $ 4,099 $ 7,167 $ — $ 45,614 Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at December 31, 2014 $ 11,909 $ 15,898 $ 3,295 $ 3,741 $ 6,606 $ — $ 41,449 Charge-offs (956 ) (704 ) (551 ) (113 ) (2,414 ) — (4,738 ) Recoveries 431 496 24 107 500 — 1,558 Provision 1,680 1,918 908 364 2,475 — 7,345 Balance at June 30, 2015 $ 13,064 $ 17,608 $ 3,676 $ 4,099 $ 7,167 $ — $ 45,614 Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at March 31, 2014 $ 11,633 $ 13,010 $ 2,571 $ 3,671 $ 7,376 $ 312 $ 38,573 Charge-offs (148 ) (161 ) (125 ) (55 ) (911 ) — (1,400 ) Recoveries 208 514 2 30 214 — 968 Provision 234 1,317 340 169 837 (146 ) 2,751 Balance at June 30, 2014 $ 11,927 $ 14,680 $ 2,788 $ 3,815 $ 7,516 $ 166 $ 40,892 Commercial Commercial Real Estate Agricultural Residential Real Estate Consumer Unallocated Total Balance at December 31, 2013 $ 13,099 $ 14,152 $ 2,992 $ 3,720 $ 7,722 $ — $ 41,685 Charge-offs (7,065 ) (1,084 ) (1,636 ) (204 ) (2,069 ) — (12,058 ) Recoveries 407 1,294 4 56 422 — 2,183 Provision 5,486 318 1,428 243 1,441 166 9,082 Balance at June 30, 2014 $ 11,927 $ 14,680 $ 2,788 $ 3,815 $ 7,516 $ 166 $ 40,892

Goodwill, Core Deposit Premiu25

Goodwill, Core Deposit Premium and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The gross carrying amount of other intangible assets and the associated accumulated amortization at June 30, 2015 , and December 31, 2014 , are presented in the table below, in thousands: June 30, 2015 December 31, 2014 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Amortizing intangible assets: Core deposit intangibles $ 27,109 $ 13,849 $ 13,260 $ 21,069 $ 12,525 $ 8,544 Mortgage servicing rights 41,458 13,819 27,639 37,825 12,841 24,984 Customer relationship intangible 1,177 794 383 1,177 773 404 Commercial servicing rights 4,396 452 3,944 — — — Total $ 74,140 $ 28,914 $ 45,226 $ 60,071 $ 26,139 $ 33,932
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The following table shows the estimated future amortization expense for amortizable intangible assets, in thousands: Core Deposit Intangibles Mortgage Servicing Rights Customer Relationship Intangible Commercial Servicing Rights Total Six months ending December 31, 2015 $ 1,374 $ 4,368 $ 21 $ 421 $ 6,184 Year ending December 31, 2016 2,467 5,818 41 821 9,147 2017 2,180 4,987 40 769 7,976 2018 1,925 4,156 39 676 6,796 2019 1,667 3,324 38 504 5,533 2020 1,423 2,493 37 314 4,267 Thereafter 2,224 2,493 167 439 5,323
Schedule of Servicing Assets at Fair Value	The following table summarizes, in thousands, the changes in capitalized mortgage servicing rights for the six-month periods ended June 30, 2015, and June 30, 2014: 2015 2014 Balance at January 1 $ 24,984 $ 21,788 Originations 7,015 3,344 Amortization (4,360 ) (2,355 ) Balance at June 30 $ 27,639 $ 22,777 Fair value of mortgage servicing rights $ 36,971 $ 31,471 Mortgage servicing rights, net to servicing portfolio 0.73 % 0.71 % The following table summarizes, in thousands, the changes in capitalized commercial servicing rights for the six-month periods ended June 30, 2015, and June 30, 2014: 2015 2014 Balance at January 1 $ — $ — Acquired 4,255 — Originations 141 — Amortization (452 ) — Balance at June 30 $ 3,944 $ —

Derivative Financial Instrume26

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below identifies the balance sheet category and fair values of Heartland's derivative instruments designated as cash flow hedges at June 30, 2015 , and December 31, 2014 , in thousands: Notional Amount Fair Value Balance Sheet Category Receive Rate Weighted Average Pay Rate Maturity June 30, 2015 Interest rate swap $ 9,667 $ (159 ) Other Liabilities 2.937 % 5.140 % 04/20/2016 Interest rate swap 25,000 (523 ) Other Liabilities 0.283 % 2.255 % 03/17/2021 Interest rate swap 20,000 (877 ) Other Liabilities 0.283 % 3.220 % 03/01/2017 Interest rate swap 20,000 (1,680 ) Other Liabilities 0.271 % 3.355 % 01/07/2020 Interest rate swap 10,000 (86 ) Other Liabilities 0.281 % 1.674 % 03/26/2019 Interest rate swap 10,000 (86 ) Other Liabilities 0.283 % 1.658 % 03/18/2019 Interest rate swap 20,000 491 Other Assets 1.700 % 2.390 % 06/15/2024 Interest rate swap 20,000 452 Other Assets 1.676 % 2.352 % 03/01/2024 December 31, 2014 Interest rate swap $ 10,369 $ (248 ) Other Liabilities 2.915 % 5.140 % 04/20/2016 Interest rate swap 25,000 (534 ) Other Liabilities 0.243 % 2.255 % 03/17/2021 Interest rate swap 20,000 (1,046 ) Other Liabilities 0.234 % 3.220 % 03/01/2017 Interest rate swap 20,000 (1,748 ) Other Liabilities 0.232 % 3.355 % 01/07/2020 Interest rate swap 10,000 (35 ) Other Liabilities 0.255 % 1.674 % 03/26/2019 Interest rate swap 10,000 (35 ) Other Liabilities 0.243 % 1.658 % 03/18/2019
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The table below identifies the gains and losses recognized on Heartland's derivative instruments designated as cash flow hedges for the six months ended June 30, 2015 , and June 30, 2014, in thousands: Effective Portion Ineffective Portion Recognized in OCI Reclassified from AOCI into Income Recognized in Income on Derivatives Amount of Gain (Loss) Category Amount of Gain (Loss) Category Amount of Gain (Loss) Three Months Ended June 30, 2015 Interest rate swap $ 50 Interest Expense $ (56 ) Other Income $ — Interest rate swap 387 Interest Expense (126 ) Other Income — Interest rate swap 124 Interest Expense (150 ) Other Income — Interest rate swap 252 Interest Expense (155 ) Other Income — Interest rate swap 57 Interest Expense (36 ) Other Income — Interest rate swap 55 Interest Expense (36 ) Other Income — Interest rate swap 584 Interest Expense — Other Income — Interest rate swap 559 Interest Expense — Other Income — Six Months Ended June 30, 2015 Interest rate swap $ 89 Interest Expense $ (113 ) Other Income $ — Interest rate swap 11 Interest Expense (252 ) Other Income — Interest rate swap 169 Interest Expense (301 ) Other Income — Interest rate swap 68 Interest Expense (315 ) Other Income — Interest rate swap (51 ) Interest Expense (71 ) Other Income — Interest rate swap (51 ) Interest Expense (71 ) Other Income — Interest rate swap 491 Interest Expense — Other Income — Interest rate swap 452 Interest Expense — Other Income — Three Months Ended June 30, 2014 Interest rate swap $ 44 Interest Expense $ (64 ) Other Income $ — Interest rate swap (372 ) Interest Expense (129 ) Other Income — Interest rate swap 65 Interest Expense (151 ) Other Income — Interest rate swap (159 ) Interest Expense (156 ) Other Income — Interest rate swap (86 ) Interest Expense (37 ) Other Income — Interest rate swap (85 ) Interest Expense (36 ) Other Income — Interest rate swap — Interest Expense — Other Income — Six Months Ended June 30, 2014 Interest rate swap $ 95 Interest Expense $ (129 ) Other Income $ — Interest rate swap (310 ) Interest Expense (129 ) Other Income — Interest rate swap 179 Interest Expense (302 ) Other Income — Interest rate swap (240 ) Interest Expense (315 ) Other Income — Interest rate swap (41 ) Interest Expense (37 ) Other Income — Interest rate swap (40 ) Interest Expense (36 ) Other Income — Interest rate swap 146 Interest Expense (146 ) Other Income —
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The table below identifies the balance sheet category and fair values of Heartland's derivative instruments not designated as hedging instruments at June 30, 2015 , and December 31, 2014 , in thousands: Balance Sheet Category Notional Amount Fair Value June 30, 2015 Interest rate lock commitments (mortgage) Other Assets $ 197,970 $ 6,558 Forward commitments Other Assets 301,592 2,834 Forward commitments Other Liabilities 160,960 (603 ) December 31, 2014 Interest rate lock commitments (mortgage) Other Assets $ 74,863 $ 2,496 Forward commitments Other Assets 88,484 275 Forward commitments Other Liabilities 218,337 (1,619 ) The table below identifies the income statement category of the gains and losses recognized in income on Heartland's derivative instruments not designated as hedging instruments for the three- and six-month periods ended June 30, 2015 , and June 30, 2014, in thousands: Income Statement Category Gain (Loss) Recognized Three Months Ended June 30, 2015 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ (1,712 ) Forward commitments Gains on sale of loans held for sale 3,700 Six Months Ended June 30, 2015 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ 3,832 Forward commitments Gains on sale of loans held for sale 3,575 Three Months Ended June 30, 2014 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ 3,435 Forward commitments Gains on sale of loans held for sale (1,837 ) Six Months Ended June 30, 2014 Interest rate lock commitments (mortgage) Gains on sale of loans held for sale $ 5,317 Forward commitments Gains on sale of loans held for sale (2,979 )

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The table below presents Heartland's assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2015 , and December 31, 2014 , in thousands, aggregated by the level in the fair value hierarchy within which those measurements fall: Total Fair Value Level 1 Level 2 Level 3 June 30, 2015 Assets Securities available for sale U.S. government corporations and agencies $ 15,802 $ 523 $ 15,279 $ — Mortgage-backed securities 1,108,050 — 1,102,523 5,527 Obligations of states and political subdivisions 186,001 — 186,001 — Corporate debt securities 740 — — 740 Equity securities 5,106 — 5,106 — Derivative financial instruments 1,136 — 1,136 — Interest rate lock commitments 6,558 — — 6,558 Forward commitments 2,834 — 2,834 — Total assets at fair value $ 1,326,227 $ 523 $ 1,312,879 $ 12,825 Liabilities Derivative financial instruments $ 3,607 $ — $ 3,607 $ — Forward commitments 603 — 603 — Total liabilities at fair value $ 4,210 $ — $ 4,210 $ — December 31, 2014 Assets Securities available for sale U.S. government corporations and agencies $ 24,093 $ 2,529 $ 21,564 $ — Mortgage-backed securities 1,219,266 — 1,214,319 4,947 Obligations of states and political subdivisions 153,426 — 153,426 — Corporate debt securities — — — — Equity securities 5,083 — 5,083 — Interest rate lock commitments 2,496 — — 2,496 Forward commitments 275 — 275 — Total assets at fair value $ 1,404,639 $ 2,529 $ 1,394,667 $ 7,443 Liabilities Derivative financial instruments $ 3,646 $ — $ 3,646 $ — Forward commitments 1,619 — 1,619 — Total liabilities at fair value $ 5,265 $ — $ 5,265 $ —
Fair Value Measurements, Nonrecurring	The tables below present Heartland's assets that are measured at fair value on a nonrecurring basis, in thousands: Fair Value Measurements at June 30, 2015 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Year-to- Date Losses Collateral dependent impaired loans: Commercial $ — $ — $ — $ — $ — Commercial real estate 4,927 — — 4,927 160 Agricultural and agricultural real estate — — — — — Residential real estate 2,662 — — 2,662 63 Consumer 1,854 — — 1,854 — Total collateral dependent impaired loans $ 9,443 $ — $ — $ 9,443 $ 223 Other real estate owned $ 16,983 $ — $ — $ 16,983 $ 855 Fair Value Measurements at December 31, 2014 Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Year-to- Date Losses Collateral dependent impaired loans: Commercial $ 1,033 $ — $ — $ 1,033 $ 659 Commercial real estate 12,584 — — 12,584 492 Agricultural and agricultural real estate 552 — — 552 2,229 Residential real estate 3,173 — — 3,173 — Consumer 2,003 — — 2,003 22 Total collateral dependent impaired loans $ 19,345 $ — $ — $ 19,345 $ 3,402 Other real estate owned $ 19,016 $ — $ — $ 19,016 $ 1,938
Fair Value Inputs, Liabilities, Quantitative Information	The following tables present additional quantitative information about assets measured at fair value and for which Heartland has utilized Level 3 inputs to determine fair value, in thousands: Fair Value at 6/30/15 Valuation Technique Unobservable Input Range (Weighted Average) Z-TRANCHE Securities $ 5,527 Discounted cash flows Pretax discount rate 7.00 - 9.00% Actual defaults 16.29 - 36.53% (29.70%) Actual deferrals 5.60 - 27.01% (17.21%) Corporate debt securities 740 Discounted cash flows Bank analysis (1) Interest rate lock commitments 6,558 Discounted cash flows Closing ratio (2) Collateral dependent impaired loans: Commercial — Modified appraised value Third party appraisal (3) Appraisal discount (3) Commercial real estate 4,927 Modified appraised value Third party appraisal (3) Appraisal discount (3) Agricultural and agricultural real estate — Modified appraised value Third party appraisal (3) Appraisal discount (3) Residential real estate 2,662 Modified appraised value Third party appraisal (3) Appraisal discount (3) Consumer 1,854 Modified appraised value Third party valuation (3) Valuation discount (3) Other real estate owned 16,983 Modified appraised value Third party appraisal (3) Appraisal discount (3) (1) The unobservable input is the bank analysis market using Moody's Global Bank Rating Methodology. The analysis takes into consideration various performance metrics as well as yield on the debt securities and credit risk analysis. (2) The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at June 30, 2015, was 86%. (3) Third party appraisals are obtained as to the value of the underlying asset, but disclosure of this information would not provide meaningful information, as the range will vary widely from loan to loan. Types of discounts considered included age of the appraisal, local market conditions, current condition of the property, and estimated sales costs. These discounts will also vary from loan to loan, thus providing range would not be meaningful. Fair Value at 12/31/14 Valuation Technique Unobservable Input Range (Weighted Average) Z-TRANCHE Securities $ 4,947 Discounted cash flows Pretax discount rate 7.00 - 9.00% Actual defaults 15.60 - 30.60% (24.50%) Actual deferrals 7.20 - 17.30% (12.90%) Corporate debt securities — Discounted cash flows Bank analysis (1) Interest rate lock commitments 2,496 Discounted cash flows Closing ratio (2) Collateral dependent impaired loans: Commercial 1,033 Modified appraised value Third party appraisal (3) Appraisal discount (3) Commercial real estate 12,584 Modified appraised value Third party appraisal (3) Appraisal discount (3) Agricultural and agricultural real estate 552 Modified appraised value Third party appraisal (3) Appraisal discount (3) Residential real estate 3,173 Modified appraised value Third party appraisal (3) Appraisal discount (3) Consumer 2,003 Modified appraised value Third party valuation (3) Valuation discount (3) Other real estate owned 19,016 Modified appraised value Third party appraisal (3) Appraisal discount (3) (1) The unobservable input is the bank analysis market using Moody's Global Bank Rating Methodology. The analysis takes into consideration various performance metrics as well as yield on the debt securities and credit risk analysis. (2) The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at December 31, 2014, was 84%. (3) Third party appraisals are obtained as to the value of the underlying asset, but disclosure of this information would not provide meaningful information, as the range will vary widely from loan to loan. Types of discounts considered included age of the appraisal, local market conditions, current condition of the property, and estimated sales costs. These discounts will also vary from loan to loan, thus providing range would not be meaningful.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The changes in fair value of the Z-TRANCHE, a Level 3 asset, that is measured on a recurring basis are summarized in the following table, in thousands: For the Six Months Ended June 30, 2015 For the Year Ended December 31, 2014 Balance at January 1, $ 4,947 $ 3,298 Total gains (losses): Included in earnings — — Included in other comprehensive income 696 1,783 Purchases, sales and settlements: Purchases 6 — Sales — — Settlements (122 ) (134 ) Balance at period end $ 5,527 $ 4,947 The changes in fair value of the corporate debt securities, Level 3 assets, that are measured on a recurring basis is summarized in the following table, in thousands: For the Six Months Ended June 30, 2015 For the Year Ended December 31, 2014 Balance at January 1, $ — $ — Total gains (losses): Included in earnings — — Included in other comprehensive income — — Purchases, acquired, sales and settlements: Purchases — — Acquired 740 — Sales — — Settlements — — Balance at period end $ 740 $ — The changes in fair value of the interest rate lock commitments, which are Level 3 financial instruments and are measured on a recurring basis, are summarized in the following table, in thousands: For the Six Months Ended June 30, 2015 For the Year Ended December 31, 2014 Balance at January 1, $ 2,496 $ 1,809 Total gains (losses) included in earnings 3,832 2,422 Issuances 2,530 2,038 Settlements (2,300 ) (3,773 ) Balance at period end $ 6,558 $ 2,496
Fair Value, by Balance Sheet Grouping	The following analysis, which is inherently limited in depicting fair value, also does not consider any value associated with either existing customer relationships or the ability of Heartland to create value through loan origination, deposit gathering or fee generating activities. Many of the estimates presented herein are based upon the use of highly subjective information and assumptions and, accordingly, the results may not be precise. Management believes that fair value estimates may not be comparable between financial institutions due to the wide range of permitted valuation techniques and numerous estimates which must be made. Furthermore, because the disclosed fair value amounts were estimated as of the balance sheet date, the amounts actually realized or paid upon maturity or settlement of the various financial instruments could be significantly different. Fair Value Measurements at June 30, 2015 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 119,722 $ 119,722 $ 119,722 $ — $ — Time deposits in other financial institutions 2,355 2,355 2,355 — — Securities: Available for sale 1,315,699 1,315,699 523 1,308,909 6,267 Held to maturity 283,258 292,564 — 292,564 — Other investments 20,455 20,455 — 20,220 235 Loans held for sale 105,898 105,898 — 105,898 — Loans, net: Commercial 1,176,157 1,165,559 — 1,165,559 — Commercial real estate 1,991,799 1,993,635 — 1,988,708 4,927 Agricultural and agricultural real estate 440,864 443,725 — 443,725 — Residential real estate 438,184 435,955 — 433,293 2,662 Consumer 357,205 360,176 — 358,322 1,854 Total Loans, net 4,404,209 4,399,050 — 4,389,607 9,443 Derivative financial instruments 1,136 1,136 — 1,136 — Interest rate lock commitments 6,558 6,558 — — 6,558 Forward commitments 2,834 2,834 — 2,834 — Financial liabilities: Deposits Demand deposits 1,536,355 1,536,355 — 1,536,355 — Savings deposits 2,816,666 2,816,666 — 2,816,666 — Time deposits 964,248 964,248 — 964,248 — Short term borrowings 477,918 477,918 — 477,918 — Other borrowings 296,594 299,845 — 299,845 — Derivative financial instruments 3,607 3,607 — 3,607 — Forward commitments 603 603 — 603 — Fair Value Measurements at December 31, 2014 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial assets: Cash and cash equivalents $ 73,871 $ 73,871 $ 73,871 $ — $ — Time deposits in other financial institutions 2,605 2,605 2,605 — — Securities: Available for sale 1,401,868 1,401,868 2,529 1,394,392 4,947 Held to maturity 284,587 296,768 — 296,768 — Other investments 20,498 20,498 — 20,263 235 Loans held for sale 70,514 70,514 — 70,514 — Loans, net: Commercial 1,024,065 1,009,802 — 1,008,769 1,033 Commercial real estate 1,690,899 1,699,722 — 1,687,138 12,584 Agricultural and agricultural real estate 420,623 423,968 — 423,416 552 Residential real estate 377,094 370,178 — 367,005 3,173 Consumer 323,873 330,211 — 328,208 2,003 Total Loans, net 3,836,554 3,833,881 — 3,814,536 19,345 Derivative financial instruments — — — — — Interest rate lock commitments 2,496 2,496 — — 2,496 Forward commitments 275 275 — 275 — Financial liabilities: Deposits Demand deposits 1,295,193 1,295,193 — 1,295,193 — Savings deposits 2,687,493 2,687,493 — 2,687,493 — Time deposits 785,336 785,336 — 785,336 — Short term borrowings 330,264 330,264 — 330,264 — Other borrowings 396,255 401,978 — 401,978 — Derivative financial instruments 3,646 3,646 — 3,646 — Forward commitments 1,619 1,619 — 1,619 —

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting	The following tables present financial information from Heartland's operating segments for the three - and six-month periods ended June 30, 2015 , and June 30, 2014, in thousands. Three Months Ended June 30, 2015 2014 Community and Other Banking Retail Mortgage Banking Total Community and Other Banking Retail Mortgage Banking Total Net interest income $ 55,988 $ 1,656 $ 57,644 $ 50,285 $ 514 $ 50,799 Provision for loan losses 5,674 — 5,674 2,751 — 2,751 Total noninterest income 15,603 15,058 30,661 11,991 9,544 21,535 Total noninterest expense 48,987 14,495 63,482 43,543 11,116 54,659 Income (loss) before taxes $ 16,930 $ 2,219 $ 19,149 $ 15,982 $ (1,058 ) $ 14,924 Average Loans, for the period $ 4,340,289 $ 106,835 $ 4,447,124 $ 3,621,543 $ 70,616 $ 3,692,159 Segment Assets, at period end $ 6,579,225 $ 137,782 $ 6,717,007 $ 5,799,636 $ 114,282 $ 5,913,918 Six Months Ended 2015 2014 Community Retail Total Community Retail Total Net interest income $ 108,877 $ 2,697 $ 111,574 $ 98,140 $ 1,271 $ 99,411 Provision for loan losses 7,345 — 7,345 9,082 — 9,082 Total noninterest income 32,664 28,660 61,324 23,517 16,868 40,385 Total noninterest expense 96,446 26,650 123,096 85,880 21,317 107,197 Income (loss) before taxes $ 37,750 $ 4,707 $ 42,457 $ 26,695 $ (3,178 ) $ 23,517 Average Loans, for the period $ 4,265,624 $ 92,231 $ 4,357,855 $ 3,575,284 $ 56,693 $ 3,631,977 Segment Assets, at period end $ 6,579,225 $ 137,782 $ 6,717,007 $ 5,799,636 $ 114,282 $ 5,913,918

Basis of Presentation (Earnings

Basis of Presentation (Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share
Net income attributable to Heartland	$ 15,160	$ 10,774	$ 30,869	$ 17,664
Preferred dividends and discount	(204)	(204)	(408)	(408)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 14,956	$ 10,570	$ 30,461	$ 17,256
Weighted average common shares outstanding for basic earnings per share	20,599	18,458	20,408	18,448
Assumed incremental common shares issued upon exercise of stock options and non-vested restricted stock units	278	289	274	291
Weighted average common shares for diluted earnings per share	20,877	18,747	20,682	18,739
Earnings per common share — basic (in dollars per share)	$ 0.73	$ 0.57	$ 1.49	$ 0.94
Earnings per common share — diluted (in dollars per share)	$ 0.72	$ 0.56	$ 1.47	$ 0.92
Number of antidilutive common stock equivalents excluded from diluted earnings per share computation	0	95	0	95

Basis of Presentation (Stock-Ba

Basis of Presentation (Stock-Based Compensation) (Details)	Mar. 10, 2015shares	Jan. 20, 2015shares	Mar. 11, 2014shares	Jun. 30, 2015USD ($)equal_installments$ / sharesshares	Jun. 30, 2014USD ($)$ / sharesshares
Stock-Based Compensation
Tax benefit (expense) from equity based awards				$ 651,000	$ 119,000
Options granted (in shares) | shares				0	0
Vested options (in shares) | shares				156,951	250,436
Vested options, weighted average exercise price (in dollars per share) | $ / shares				$ 24.18	$ 23.62
Vested options, weighted average remaining contractual life				1 year 8 months 5 days
Intrinsic value for vested options				$ 2,000,000
Intrinsic value for the total of all options exercised				$ 508,000
Maximum exercise period				10 years
Cash received from options exercised				$ 1,300,000	$ 96,000
Restricted Stock Units (RSUs)
Stock-Based Compensation
Share-based compensation costs				1,900,000	1,800,000
Share-based unrecognized compensation costs				4,600,000
Stock Option
Stock-Based Compensation
Share-based compensation costs				0	$ 0
Share-based unrecognized compensation costs				$ 0
Options granted (in shares) | shares				0	0
Stock Option | Prior to 2009
Stock-Based Compensation
Share-based compensation, award vesting periods				5 years
Typical options expiration period after date of grant				10 years
Stock Option | Prior to 2009 | Period One
Stock-Based Compensation
Share-based compensation, award vesting periods				3 years
Stock Option | Prior to 2009 | Period Two
Stock-Based Compensation
Share-based compensation, award vesting periods				4 years
Stock Option | Prior to 2009 | Period Three
Stock-Based Compensation
Share-based compensation, award vesting periods				5 years
Long-Term Incentive Plan 2012
Stock-Based Compensation
Number of shares for issuance under future awards | shares				265,153
Long-Term Incentive Plan 2005 | Restricted Stock Units (RSUs)
Stock-Based Compensation
Equity instruments other than options, granted (in shares) | shares		78,220	67,190	22,648	31,525
Share-based compensation, award vesting periods				5 years
Award vesting, number of equal installments | equal_installments				3
Long-Term Incentive Plan 2005 | Performance-Based Restricted Stock Units
Stock-Based Compensation
Equity instruments other than options, granted (in shares) | shares	39,075		32,645

Basis of Presentation (Summary

Basis of Presentation (Summary of RSUs Activity) (Details) - Restricted Stock Units (RSUs) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Shares
Outstanding at beginning of period (in shares)	396,555	353,070
Granted (in shares)	139,943	131,235
Vested (in shares)	(151,681)	(73,224)
Forfeited (in shares)	(11,198)	(3,901)
Outstanding at end of period (in shares)	373,619	407,180
Weighted-Average Grant Date Fair Value
Outstanding at beginning of period (in dollars per share)	$ 21.48	$ 18.48
Granted (in dollars per share)	28.90	26.69
Vested (in dollars per share)	17.98	16.65
Forfeited (in dollars per share)	25.14	19.10
Outstanding at end of period (in dollars per share)	$ 25.55	$ 21.53

Basis of Presentation (Summar32

Basis of Presentation (Summary of Stock Options Activity) (Details) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Shares
Outstanding at beginning of period (in shares)	215,851	261,936
Granted (in shares)	0	0
Exercised (in shares)	(56,650)	(5,000)
Forfeited (in shares)	(2,250)	(6,500)
Outstanding at end of period (in shares)	156,951	250,436
Options exercisable at end of period (in shares)	156,951	250,436
Weighted-Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 23.85	$ 23.60
Granted (in dollars per share)	0	0
Exercised (in dollars per share)	22.85	19.13
Forfeited (in dollars per share)	23.88	26.39
Outstanding at end of period (in dollars per share)	24.18	23.62
Options exercisable at end of period (in dollars per share)	$ 24.18	$ 23.62

Basis of Presentation (Addition

Basis of Presentation (Additional Information) (Details) $ in Thousands	Mar. 31, 2015USD ($)
Other Borrowings
Reclassification [Line Items]
Debt issuance cost reclassified from other assets	$ 550

Acquisitions (Narrative) (Detai

Acquisitions (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	May. 28, 2015	May. 14, 2015	Apr. 15, 2015	Jan. 16, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Business Acquisition [Line Items]
Assets					$ 6,717,007	$ 6,051,812	$ 5,913,918
Loans outstanding					4,404,209	3,836,554
Deposits					5,317,269	4,768,022
Nonaccrual loans					25,894	24,205
Premier Valley Bank
Business Acquisition [Line Items]
Purchase price in cash	$ 95,000
Purchase price (in usd per share)	$ 7.73
Payment in common stock, percentage	70.00%
Payment in cash, percentage	30.00%
Assets					655,000
Loans outstanding					413,000
Deposits					573,000
First Scottsdale Bank, N.A.
Business Acquisition [Line Items]
Purchase price in cash		$ 17,700
Assets					96,000
Loans outstanding					63,000
Deposits					79,000
Community Bancorporation of New Mexico, Inc.
Business Acquisition [Line Items]
Purchase price in cash			$ 11,100
Assets					175,000
Loans outstanding					109,000
Deposits					146,000
Community Banc-Corp of Sheboygan, Inc.
Business Acquisition [Line Items]
Purchase price in cash				$ 6
Assets				506,800
Loans outstanding				395,000
Deposits				$ 433,900
Purchase price, percentage of adjusted tangible book value				155.00%
Total purchase price				$ 53,058
Purchase price paid by delivery of shares of common stock				1,970,720
Pre-tax merger related expenses					$ 1,700	$ 1,700
Nonaccrual loans				$ 5,800

Acquisitions (Acquisition, Fair

Acquisitions (Acquisition, Fair Values) (Details) - USD ($) $ in Thousands	Jan. 16, 2015	Jun. 30, 2015	Dec. 31, 2014
Fair value of liabilities assumed
Goodwill resulting from acquisition		$ 54,162	$ 35,583
Community Banc-Corp of Sheboygan, Inc.
Fair value of consideration paid
Common Stock	$ 53,052
Cash	6
Total consideration paid	53,058
Fair value of assets acquired
Cash and due from banks	7,109
Securities:
Securities available for sale	52,976
Other securities	1,284
Loans held for sale	728
Loans held to maturity	395,007
Premises, furniture and equipment, net	13,954
Other real estate, net	346
Other intangible assets, net	10,295
Other assets	25,066
Total assets	506,765
Fair value of liabilities assumed
Deposits	433,919
Short term borrowings	24,836
Other borrowings	6,097
Other liabilities	7,434
Total liabilities assumed	472,286
Fair value of net assets acquired	34,479
Goodwill resulting from acquisition	$ 18,579

Acquisitions (Pro Forma) (Detai

Acquisitions (Pro Forma) (Details) - Community Banc-Corp of Sheboygan, Inc. - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Net interest income	$ 220,358	$ 179,001
Net income	$ 44,710	$ 42,105
Basic earnings per share (in usd per share)	$ 2.19	$ 2.20
Diluted earnings per share (in usd per share)	$ 2.16	$ 2.17

Securities (Securities availabl

Securities (Securities available for sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,308,488	$ 1,396,794
Gross Unrealized Gains	18,348	17,385
Gross Unrealized Losses	(11,137)	(12,311)
Estimated Fair Value	1,315,699	1,401,868
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,303,443	1,391,765
Gross Unrealized Gains	18,287	17,331
Gross Unrealized Losses	(11,137)	(12,311)
Estimated Fair Value	1,310,593	1,396,785
U.S. government corporations and agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,701	24,010
Gross Unrealized Gains	101	98
Gross Unrealized Losses	0	(15)
Estimated Fair Value	15,802	24,093
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,101,835	1,219,305
Gross Unrealized Gains	15,575	11,929
Gross Unrealized Losses	(9,360)	(11,968)
Estimated Fair Value	1,108,050	1,219,266
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	185,167	148,450
Gross Unrealized Gains	2,611	5,304
Gross Unrealized Losses	(1,777)	(328)
Estimated Fair Value	186,001	153,426
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	740	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	740	0
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,045	5,029
Gross Unrealized Gains	61	54
Gross Unrealized Losses	0	0
Estimated Fair Value	$ 5,106	$ 5,083

Securities (Held to maturity se

Securities (Held to maturity securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 283,258	$ 284,587
Gross Unrealized Gains	11,659	13,793
Gross Unrealized Losses	(2,353)	(1,612)
Estimated Fair Value	292,564	296,768
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	5,555	5,734
Gross Unrealized Gains	266	217
Gross Unrealized Losses	(816)	(667)
Estimated Fair Value	5,005	5,284
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	277,703	278,853
Gross Unrealized Gains	11,393	13,576
Gross Unrealized Losses	(1,537)	(945)
Estimated Fair Value	$ 287,559	$ 291,484

Securities (Securities availa39

Securities (Securities available for sale (debt maturities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Amortized Cost
Due in 1 year or less	$ 3,378
Due in 1 to 5 years	22,352
Due in 5 to 10 years	40,102
Due after 10 years	135,776
Total debt securities	201,608
Mortgage-backed securities	1,101,835
Equity securities	5,045
Amortized Cost	1,308,488	$ 1,396,794
Estimated Fair Value
Due in 1 year or less	3,394
Due in 1 to 5 years	22,274
Due in 5 to 10 years	40,078
Due after 10 years	136,797
Total debt securities	202,543
Mortgage-backed securities	1,108,050
Equity securities	5,106
Estimated Fair Value	$ 1,315,699	$ 1,401,868

Securities (Securities held to

Securities (Securities held to maturity (debt maturities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Amortized Cost
Due in 1 year or less	$ 3,092
Due in 1 to 5 years	13,827
Due in 5 to 10 years	59,866
Due after 10 years	200,918
Total debt securities	277,703
Mortgage-backed securities	5,555
Amortized Cost	283,258	$ 284,587
Estimated Fair Value
Due in 1 year or less	3,153
Due in 1 to 5 years	14,462
Due in 5 to 10 years	62,268
Due after 10 years	207,676
Total debt securities	287,559
Mortgage-backed securities	5,005
Estimated Fair Value	$ 292,564	$ 296,768

Securities (Realized gain (loss

Securities (Realized gain (loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 270,688	$ 154,603	$ 526,026	$ 509,891
Gross security gains	3,819	974	8,441	3,446
Gross security losses	$ 709	$ 120	$ 978	$ 1,811

Securities (Available for sale

Securities (Available for sale securities losses) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	$ 465,913	$ 334,291
Less than 12 months, Unrealized Losses	(8,687)	(7,412)
12 months or longer, Fair Value	138,327	326,585
12 months or longer, Unrealized Losses	(2,450)	(4,899)
Total, Fair Value	604,240	660,876
Total, Unrealized Losses	(11,137)	(12,311)
U.S. government corporations and agencies
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	0	6,042
Less than 12 months, Unrealized Losses	0	(15)
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	0	6,042
Total, Unrealized Losses	0	(15)
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	390,432	327,363
Less than 12 months, Unrealized Losses	(7,343)	(7,391)
12 months or longer, Fair Value	128,712	306,078
12 months or longer, Unrealized Losses	(2,017)	(4,577)
Total, Fair Value	519,144	633,441
Total, Unrealized Losses	(9,360)	(11,968)
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	75,481	886
Less than 12 months, Unrealized Losses	(1,344)	(6)
12 months or longer, Fair Value	9,615	20,507
12 months or longer, Unrealized Losses	(433)	(322)
Total, Fair Value	85,096	21,393
Total, Unrealized Losses	$ (1,777)	$ (328)

Securities (Held to maturity 43

Securities (Held to maturity securities losses) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, Fair Value	$ 26,655	$ 3,172
Less than 12 months, Unrealized Losses	(466)	(422)
12 months or longer, Fair Value	19,238	32,163
12 months or longer, Unrealized Losses	(1,887)	(1,190)
Total, Fair Value	45,893	35,335
Total, Unrealized Losses	(2,353)	(1,612)
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, Fair Value	0	0
Less than 12 months, Unrealized Losses	0	0
12 months or longer, Fair Value	1,914	2,761
12 months or longer, Unrealized Losses	(816)	(667)
Total, Fair Value	1,914	2,761
Total, Unrealized Losses	(816)	(667)
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Less than 12 months, Fair Value	26,655	3,172
Less than 12 months, Unrealized Losses	(466)	(422)
12 months or longer, Fair Value	17,324	29,402
12 months or longer, Unrealized Losses	(1,071)	(523)
Total, Fair Value	43,979	32,574
Total, Unrealized Losses	$ (1,537)	$ (945)

Securities (Other-than-temporar

Securities (Other-than-temporary impairments) (Details)	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2012USD ($)securities	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Investments, Debt and Equity Securities [Abstract]
OTTI write-downs included in earnings, available for sale debt securities	$ 184,000			$ 184,000		$ 184,000
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of investments with OTTI | securities	3
OTTI write-downs included in earnings, held to maturity debt securities	$ 797,000
Gross realized gains (losses) on sale of available for sale securities with OTTI write-downs				0		0
Recorded as part of gross realized losses: Credit related OTTI		$ 0	$ 0	0	$ 0
Recorded as part of gross realized losses: Intent to sell OTTI		0	0	0	0
Total recorded as part of gross realized losses	$ 981,000	0	0	0	0
Recorded directly to AOCI for non-credit related impairment: Residential mortgage backed securities		0	0	0	0
Recorded directly to AOCI for non-credit related impairment: Accretion of non-credit related impairment		(24,000)	(24,000)	(48,000)	(48,000)
Total changes to AOCI for non-credit related impairment		(24,000)	(24,000)	(48,000)	(48,000)
Total OTTI losses (accretion) recorded on debt securities, net		(24,000)	$ (24,000)	(48,000)	$ (48,000)
Held-to-maturity Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Credit related OTTI		797,000		797,000		797,000
Non-credit related OTTI		$ 374,000		$ 374,000		$ 422,000

Securities (Other securities) (

Securities (Other securities) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Investment [Line Items]
FHLB	$ 14.6	$ 14.3
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Investment [Line Items]
Percentage of mortgage-backed securities issued by government-sponsored enterprises	84.00%

Loans and Leases (Loans and lea

Loans and Leases (Loans and leases receivable) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	$ 4,451,294	$ 3,877,863
Unearned discount	(234)	(90)
Deferred loan fees	(1,237)	(1,028)
Total net loans and leases receivable held to maturity	4,449,823	3,876,745
Total loans covered under loss share agreements	0	1,258
Allowance for loan and lease losses	(45,614)	(41,449)
Loans and leases receivable, net	4,404,209	3,836,554
Commercial
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	1,189,626	1,036,080
Commercial real estate
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	2,010,091	1,707,060
Agricultural and agricultural real estate
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	444,110	423,827
Total loans covered under loss share agreements	0	0
Residential real estate
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	443,026	380,341
Total loans covered under loss share agreements	$ 0	1,204
Residential real estate | Minimum
Loans and Leases [Line Items]
Length of loan agreements	10 years
Residential real estate | Maximum
Loans and Leases [Line Items]
Length of loan agreements	30 years
Consumer
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	$ 364,441	330,555
Total loans covered under loss share agreements	$ 0	0
Consumer | Citizens Finance Co | Loans and Finance Receivables
Loans and Leases [Line Items]
Concentration risk, percentage	21.00%
Gross loans and leases receivable held to maturity
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	$ 4,451,294	3,877,863
Commercial and commercial real estate
Loans and Leases [Line Items]
Gross loans and leases receivable held to maturity	3,199,717	2,743,140
Total loans covered under loss share agreements	$ 0	$ 54
Commercial and commercial real estate | Minimum
Loans and Leases [Line Items]
Length of loan agreements	1 year
Commercial and commercial real estate | Maximum
Loans and Leases [Line Items]
Length of loan agreements	5 years

Loans and Leases (Allowance for

Loans and Leases (Allowance for credit losses on financing receivables) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance Under ASC 310-10-35	$ 2,809		$ 2,697
Ending Balance Under ASC 450-20	42,805		38,752
Total	45,614	$ 41,854	41,449	$ 40,892	$ 38,573	$ 41,685
Ending Balance Evaluated for Impairment Under ASC 310-10-35	71,659		61,724
Ending Balance Evaluated for Impairment Under ASC 450-20	4,379,635		3,816,139
Total	4,451,294		3,877,863
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance Under ASC 310-10-35	238		754
Ending Balance Under ASC 450-20	12,826		11,155
Total	13,064	11,688	11,909	11,927	11,633	13,099
Ending Balance Evaluated for Impairment Under ASC 310-10-35	10,562		4,526
Ending Balance Evaluated for Impairment Under ASC 450-20	1,179,064		1,031,554
Total	1,189,626		1,036,080
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance Under ASC 310-10-35	1,023		636
Ending Balance Under ASC 450-20	16,585		15,262
Total	17,608	16,635	15,898	14,680	13,010	14,152
Ending Balance Evaluated for Impairment Under ASC 310-10-35	39,505		35,771
Ending Balance Evaluated for Impairment Under ASC 450-20	1,970,586		1,671,289
Total	2,010,091		1,707,060
Agricultural and agricultural real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance Under ASC 310-10-35	19		52
Ending Balance Under ASC 450-20	3,657		3,243
Total	3,676	3,216	3,295	2,788	2,571	2,992
Ending Balance Evaluated for Impairment Under ASC 310-10-35	4,658		5,049
Ending Balance Evaluated for Impairment Under ASC 450-20	439,452		418,778
Total	444,110		423,827
Residential real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance Under ASC 310-10-35	411		442
Ending Balance Under ASC 450-20	3,688		3,299
Total	4,099	3,745	3,741	3,815	3,671	3,720
Ending Balance Evaluated for Impairment Under ASC 310-10-35	11,928		10,235
Ending Balance Evaluated for Impairment Under ASC 450-20	431,098		370,106
Total	443,026		380,341
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending Balance Under ASC 310-10-35	1,118		813
Ending Balance Under ASC 450-20	6,049		5,793
Total	7,167	$ 6,570	6,606	$ 7,516	$ 7,376	$ 7,722
Ending Balance Evaluated for Impairment Under ASC 310-10-35	5,006		6,143
Ending Balance Evaluated for Impairment Under ASC 450-20	359,435		324,412
Total	$ 364,441		$ 330,555

Loans and Leases (Financing rec

Loans and Leases (Financing receivables, non accrual status) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Receivables [Abstract]
Nonaccrual loans	$ 25,894	$ 24,205
Nonaccrual troubled debt restructured loans	816	865
Total nonaccrual loans	26,710	25,070
Accruing loans past due 90 days or more	0	0
Performing troubled debt restructured loans	$ 10,903	$ 12,133

Loans and Leases (Troubled debt

Loans and Leases (Troubled debt restructurings on financing receivables) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)loans	Jun. 30, 2014USD ($)loans	Jun. 30, 2015USD ($)loans	Jun. 30, 2014USD ($)loans
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	1	4	3	4
Pre- Modification Recorded Investment	$ 1,141	$ 3,693	$ 5,133	$ 3,693
Post- Modification Recorded Investment	$ 1,141	$ 3,693	$ 5,133	$ 3,693
Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	1	0	1	0
Pre- Modification Recorded Investment	$ 830	$ 0	$ 830	$ 0
Post- Modification Recorded Investment	$ 830	$ 0	$ 830	$ 0
Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	0	1	1	1
Pre- Modification Recorded Investment	$ 0	$ 298	$ 3,992	$ 298
Post- Modification Recorded Investment	$ 0	$ 298	$ 3,992	$ 298
Commercial and commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	1	1	2	1
Pre- Modification Recorded Investment	$ 830	$ 298	$ 4,822	$ 298
Post- Modification Recorded Investment	$ 830	$ 298	$ 4,822	$ 298
Agricultural and agricultural real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	1	2	1	2
Pre- Modification Recorded Investment	$ 311	$ 3,357	$ 311	$ 3,357
Post- Modification Recorded Investment	$ 311	$ 3,357	$ 311	$ 3,357
Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	0	1	0	1
Pre- Modification Recorded Investment	$ 0	$ 38	$ 0	$ 38
Post- Modification Recorded Investment	$ 0	$ 38	$ 0	$ 38
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans | loans	0	0	0	0
Pre- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0
Post- Modification Recorded Investment	$ 0	$ 0	$ 0	$ 0

Loans and Leases (Troubled de50

Loans and Leases (Troubled debt in text) (Details) - loans	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Receivables [Abstract]
Number of troubled debt restructured loans with payment default	0	0	0	0
Financing Receivable, Recorded Investment [Line Items]
Number of loans classified as doubtful or loss	0		0
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Number of loans classified as doubtful or loss	0		0

Loans and Leases (Loans and l51

Loans and Leases (Loans and leases not covered by share agreements (credit quality indicator)) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	$ 4,451,294	$ 3,877,863
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	1,189,626	1,036,080
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	2,010,091	1,707,060
Commercial and commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	3,199,717	2,743,140
Agricultural and agricultural real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	444,110	423,827
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	443,026	380,341
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	364,441	330,555
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	4,108,825	3,592,750
Pass | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	1,071,508	939,717
Pass | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	1,834,875	1,567,711
Pass | Commercial and commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	2,906,383	2,507,428
Pass | Agricultural and agricultural real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	422,208	402,883
Pass | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	424,365	361,325
Pass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	355,869	321,114
Nonpass
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	342,469	285,113
Nonpass | Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	118,118	96,363
Nonpass | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	175,216	139,349
Nonpass | Commercial and commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	293,334	235,712
Nonpass | Agricultural and agricultural real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	21,902	20,944
Nonpass | Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	18,661	19,016
Nonpass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable	$ 8,572	$ 9,441

Loans and Leases (Loans and l52

Loans and Leases (Loans and leases not covered by share agreements (in text)) (Details)	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans delinquent 30 to 89 days, percentage	0.31%	0.21%
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Percent of loans	66.00%	66.00%
Substandard
Financing Receivable, Recorded Investment [Line Items]
Percent of loans	34.00%	34.00%
Nonpass
Financing Receivable, Recorded Investment [Line Items]
Percent of nonaccrual loans	8.00%	9.00%

Loans and Leases (Loans and l53

Loans and Leases (Loans and leases not covered by share agreements (past due financing receivables)) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 12,463	$ 6,306
60-89 Days Past Due	1,375	2,020
90 Days or More Past Due	0	0
Total Past Due	13,838	8,326
Current	4,410,746	3,844,467
Nonaccrual	26,710	25,070
Total	4,451,294	3,877,863
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	3,583	980
60-89 Days Past Due	8	48
90 Days or More Past Due	0	0
Total Past Due	3,591	1,028
Current	1,183,033	1,032,707
Nonaccrual	3,002	2,345
Total	1,189,626	1,036,080
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	3,384	1,788
60-89 Days Past Due	111	111
90 Days or More Past Due	0	0
Total Past Due	3,495	1,899
Current	1,995,011	1,693,554
Nonaccrual	11,585	11,607
Total	2,010,091	1,707,060
Commercial and commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	6,967	2,768
60-89 Days Past Due	119	159
90 Days or More Past Due	0	0
Total Past Due	7,086	2,927
Current	3,178,044	2,726,261
Nonaccrual	14,587	13,952
Total	3,199,717	2,743,140
Agricultural and agricultural real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	671	119
60-89 Days Past Due	386	50
90 Days or More Past Due	0	0
Total Past Due	1,057	169
Current	441,896	422,219
Nonaccrual	1,157	1,439
Total	444,110	423,827
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,694	1,037
60-89 Days Past Due	152	445
90 Days or More Past Due	0	0
Total Past Due	1,846	1,482
Current	432,648	371,982
Nonaccrual	8,532	6,877
Total	443,026	380,341
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	3,131	2,382
60-89 Days Past Due	718	1,366
90 Days or More Past Due	0	0
Total Past Due	3,849	3,748
Current	358,158	324,005
Nonaccrual	2,434	2,802
Total	$ 364,441	$ 330,555

Loans and Leases (Impaired loan

Loans and Leases (Impaired loans not covered by loss share agreements) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	$ 9,999	$ 9,999	$ 16,664
Impaired loans without a related allowance, Unpaid Contractual Balance	65,533	65,533	53,132
Total impaired loans held to maturity, Unpaid Contractual Balance	75,532	75,532	69,796
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	9,795	9,795	16,462
Impaired loans without a related allowance, Loan Balance	61,864	61,864	45,262
Total impaired loans held to maturity, Loan Balance	71,659	71,659	61,724
Impaired loans, Related Allowance Recorded	2,809	2,809	2,697
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	9,926	11,056	22,942
Impaired loans without a related allowance, Avg. Loan Balance	56,346	52,356	39,466
Total impaired loans held to maturity, Avg. Loan Balance	66,272	63,412	62,408
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	19	75	457
Impaired loans without a related allowance, Interest Income Recognized	577	974	1,523
Total impaired loans held to maturity, Interest Income Recognized	596	1,049	1,980
Commercial
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	273	273	780
Impaired loans without a related allowance, Unpaid Contractual Balance	10,324	10,324	4,913
Total impaired loans held to maturity, Unpaid Contractual Balance	10,597	10,597	5,693
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	238	238	780
Impaired loans without a related allowance, Loan Balance	10,324	10,324	3,746
Total impaired loans held to maturity, Loan Balance	10,562	10,562	4,526
Impaired loans, Related Allowance Recorded	238	238	754
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	265	379	5,594
Impaired loans without a related allowance, Avg. Loan Balance	8,163	5,813	3,499
Total impaired loans held to maturity, Avg. Loan Balance	8,428	6,192	9,093
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	3	6	19
Impaired loans without a related allowance, Interest Income Recognized	141	174	101
Total impaired loans held to maturity, Interest Income Recognized	144	180	120
Commercial real estate
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	2,448	2,448	7,356
Impaired loans without a related allowance, Unpaid Contractual Balance	40,650	40,650	32,708
Total impaired loans held to maturity, Unpaid Contractual Balance	43,098	43,098	40,064
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	2,448	2,448	7,322
Impaired loans without a related allowance, Loan Balance	37,057	37,057	28,449
Total impaired loans held to maturity, Loan Balance	39,505	39,505	35,771
Impaired loans, Related Allowance Recorded	1,023	1,023	636
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	1,630	2,428	5,931
Impaired loans without a related allowance, Avg. Loan Balance	34,798	33,449	24,522
Total impaired loans held to maturity, Avg. Loan Balance	36,428	35,877	30,453
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	4	10	303
Impaired loans without a related allowance, Interest Income Recognized	366	657	1,172
Total impaired loans held to maturity, Interest Income Recognized	370	667	1,475
Commercial and commercial real estate
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	2,721	2,721	8,136
Impaired loans without a related allowance, Unpaid Contractual Balance	50,974	50,974	37,621
Total impaired loans held to maturity, Unpaid Contractual Balance	53,695	53,695	45,757
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	2,686	2,686	8,102
Impaired loans without a related allowance, Loan Balance	47,381	47,381	32,195
Total impaired loans held to maturity, Loan Balance	50,067	50,067	40,297
Impaired loans, Related Allowance Recorded	1,261	1,261	1,390
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	1,895	2,807	11,525
Impaired loans without a related allowance, Avg. Loan Balance	42,961	39,262	28,021
Total impaired loans held to maturity, Avg. Loan Balance	44,856	42,069	39,546
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	7	16	322
Impaired loans without a related allowance, Interest Income Recognized	507	831	1,273
Total impaired loans held to maturity, Interest Income Recognized	514	847	1,595
Agricultural and agricultural real estate
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	1,513	1,513	3,317
Impaired loans without a related allowance, Unpaid Contractual Balance	3,145	3,145	3,961
Total impaired loans held to maturity, Unpaid Contractual Balance	4,658	4,658	7,278
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	1,513	1,513	3,317
Impaired loans without a related allowance, Loan Balance	3,145	3,145	1,732
Total impaired loans held to maturity, Loan Balance	4,658	4,658	5,049
Impaired loans, Related Allowance Recorded	19	19	52
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	2,711	2,983	3,966
Impaired loans without a related allowance, Avg. Loan Balance	2,205	2,082	3,308
Total impaired loans held to maturity, Avg. Loan Balance	4,916	5,065	7,274
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	0	39	104
Impaired loans without a related allowance, Interest Income Recognized	46	49	13
Total impaired loans held to maturity, Interest Income Recognized	46	88	117
Residential real estate
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	2,793	2,793	2,412
Impaired loans without a related allowance, Unpaid Contractual Balance	9,380	9,380	8,200
Total impaired loans held to maturity, Unpaid Contractual Balance	12,173	12,173	10,612
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	2,624	2,624	2,244
Impaired loans without a related allowance, Loan Balance	9,304	9,304	7,991
Total impaired loans held to maturity, Loan Balance	11,928	11,928	10,235
Impaired loans, Related Allowance Recorded	411	411	442
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	2,431	2,531	3,398
Impaired loans without a related allowance, Avg. Loan Balance	8,942	8,356	6,267
Total impaired loans held to maturity, Avg. Loan Balance	11,373	10,887	9,665
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	5	9	12
Impaired loans without a related allowance, Interest Income Recognized	12	71	110
Total impaired loans held to maturity, Interest Income Recognized	17	80	122
Consumer
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]
Impaired loans with a related allowance, Unpaid Contractual Balance	2,972	2,972	2,799
Impaired loans without a related allowance, Unpaid Contractual Balance	2,034	2,034	3,350
Total impaired loans held to maturity, Unpaid Contractual Balance	5,006	5,006	6,149
Impaired Financing Receivable, Recorded Investment [Abstract]
Impaired loans with a related allowance, Loan Balance	2,972	2,972	2,799
Impaired loans without a related allowance, Loan Balance	2,034	2,034	3,344
Total impaired loans held to maturity, Loan Balance	5,006	5,006	6,143
Impaired loans, Related Allowance Recorded	1,118	1,118	813
Impaired Financing Receivable, Average Recorded Investment [Abstract]
Impaired loans with a related allowance, Avg. Loan Balance	2,889	2,735	4,053
Impaired loans without a related allowance, Avg. Loan Balance	2,238	2,656	1,870
Total impaired loans held to maturity, Avg. Loan Balance	5,127	5,391	5,923
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]
Impaired loans with a related allowance, Interest Income Recognized	7	11	19
Impaired loans without a related allowance, Interest Income Recognized	12	23	127
Total impaired loans held to maturity, Interest Income Recognized	$ 19	$ 34	$ 146

Loans and Leases (Purchased imp

Loans and Leases (Purchased impaired loans (in text)) (Details) - Community Banc-Corp of Sheboygan, Inc. $ in Millions	Jan. 16, 2015USD ($)
Financing Receivable, Impaired [Line Items]
Loans	$ 413.4
Estimated fair value of loans acquired	$ 395

Loans and Leases (Carrying amou

Loans and Leases (Carrying amount loans not covered by loss share agreements) (Details) $ in Thousands	Jun. 30, 2015USD ($)
Loans covered by loss share agreement (carrying amount) [Line Items]
Impaired Purchased Loans	$ 7,755
Non Impaired Purchased Loans	338,264
Total Purchased Loans	346,019
Commercial
Loans covered by loss share agreement (carrying amount) [Line Items]
Impaired Purchased Loans	0
Non Impaired Purchased Loans	82,415
Total Purchased Loans	82,415
Commercial real estate
Loans covered by loss share agreement (carrying amount) [Line Items]
Impaired Purchased Loans	7,755
Non Impaired Purchased Loans	211,377
Total Purchased Loans	219,132
Agricultural and agricultural real estate
Loans covered by loss share agreement (carrying amount) [Line Items]
Impaired Purchased Loans	0
Non Impaired Purchased Loans	2,937
Total Purchased Loans	2,937
Residential real estate
Loans covered by loss share agreement (carrying amount) [Line Items]
Impaired Purchased Loans	0
Non Impaired Purchased Loans	23,419
Total Purchased Loans	23,419
Consumer
Loans covered by loss share agreement (carrying amount) [Line Items]
Impaired Purchased Loans	0
Non Impaired Purchased Loans	18,116
Total Purchased Loans	$ 18,116

Loans and Leases (Carrying am57

Loans and Leases (Carrying amount loans not covered by loss share agreements (in text)) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jan. 16, 2015	Dec. 31, 2014	Jul. 02, 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	$ 45,614		$ 41,449
Elizabeth State Bank
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required payments of loans acquired				$ 42,700
Estimated fair value of loans acquired				$ 37,800
Community Banc-Corp of Sheboygan, Inc.
Accounts, Notes, Loans and Financing Receivable [Line Items]
Contractually required payments of loans acquired		$ 12,900
Estimated fair value of loans acquired		8,200
Allowance for loan and lease losses	$ 550
Contractually required payments receivable of nonimpaired loans		400,000
Estimated fair value of nonimpaired loans acquired		$ 386,800

Allowance for Loan and Lease 58

Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 41,854	$ 38,573	$ 41,449	$ 41,685
Charge-offs	(2,734)	(1,400)	(4,738)	(12,058)
Recoveries	820	968	1,558	2,183
Provision	5,674	2,751	7,345	9,082
Ending Balance	45,614	40,892	45,614	40,892
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	11,688	11,633	11,909	13,099
Charge-offs	(682)	(148)	(956)	(7,065)
Recoveries	111	208	431	407
Provision	1,947	234	1,680	5,486
Ending Balance	13,064	11,927	13,064	11,927
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	16,635	13,010	15,898	14,152
Charge-offs	(371)	(161)	(704)	(1,084)
Recoveries	370	514	496	1,294
Provision	974	1,317	1,918	318
Ending Balance	17,608	14,680	17,608	14,680
Agricultural
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	3,216	2,571	3,295	2,992
Charge-offs	(275)	(125)	(551)	(1,636)
Recoveries	2	2	24	4
Provision	733	340	908	1,428
Ending Balance	3,676	2,788	3,676	2,788
Residential real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	3,745	3,671	3,741	3,720
Charge-offs	(55)	(55)	(113)	(204)
Recoveries	70	30	107	56
Provision	339	169	364	243
Ending Balance	4,099	3,815	4,099	3,815
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	6,570	7,376	6,606	7,722
Charge-offs	(1,351)	(911)	(2,414)	(2,069)
Recoveries	267	214	500	422
Provision	1,681	837	2,475	1,441
Ending Balance	7,167	7,516	7,167	7,516
Unallocated
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	0	312	0	0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	0	(146)	0	166
Ending Balance	$ 0	$ 166	$ 0	$ 166

Goodwill, Core Deposit Premiu59

Goodwill, Core Deposit Premium and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Thousands	Jan. 16, 2015	Jun. 30, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill		$ 54,162	$ 35,583
Community Banc-Corp of Sheboygan, Inc.
Goodwill [Line Items]
Goodwill	$ 18,579
Community Banc-Corp of Sheboygan, Inc. | Core Deposits
Goodwill [Line Items]
Intangibles recognized	$ 6,000
Intangibles, amortization period	10 years
Community Banc-Corp of Sheboygan, Inc. | Commercial Servicing Rights
Goodwill [Line Items]
Intangibles recognized	$ 4,300

Goodwill, Core Deposit Premiu60

Goodwill, Core Deposit Premium and Other Intangible Assets (Carrying amount of intangible assets (incl accumulated amortization) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 74,140	$ 60,071
Accumulated Amortization	28,914	26,139
Net Carrying Amount	45,226	33,932
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,109	21,069
Accumulated Amortization	13,849	12,525
Net Carrying Amount	13,260	8,544
Mortgage servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	41,458	37,825
Accumulated Amortization	13,819	12,841
Net Carrying Amount	27,639	24,984
Customer relationship intangible
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,177	1,177
Accumulated Amortization	794	773
Net Carrying Amount	383	404
Commercial servicing rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,396	0
Accumulated Amortization	452	0
Net Carrying Amount	$ 3,944	$ 0

Goodwill, Core Deposit Premiu61

Goodwill, Core Deposit Premium and Other Intangible Assets (Estimated future amortization expense for amortizable intangible assets) (Details) $ in Thousands	Jun. 30, 2015USD ($)
Future amortization expense for amortizable intangible assets [Line Items]
Six months ending December 31, 2015	$ 6,184
Year ending December 31, 2016	9,147
Year ending December 31, 2017	7,976
Year ending December 31, 2018	6,796
Year ending December 31, 2019	5,533
Year ending December 31, 2020	4,267
Thereafter	5,323
Core deposit intangibles
Future amortization expense for amortizable intangible assets [Line Items]
Six months ending December 31, 2015	1,374
Year ending December 31, 2016	2,467
Year ending December 31, 2017	2,180
Year ending December 31, 2018	1,925
Year ending December 31, 2019	1,667
Year ending December 31, 2020	1,423
Thereafter	2,224
Mortgage servicing rights
Future amortization expense for amortizable intangible assets [Line Items]
Six months ending December 31, 2015	4,368
Year ending December 31, 2016	5,818
Year ending December 31, 2017	4,987
Year ending December 31, 2018	4,156
Year ending December 31, 2019	3,324
Year ending December 31, 2020	2,493
Thereafter	2,493
Customer relationship intangible
Future amortization expense for amortizable intangible assets [Line Items]
Six months ending December 31, 2015	21
Year ending December 31, 2016	41
Year ending December 31, 2017	40
Year ending December 31, 2018	39
Year ending December 31, 2019	38
Year ending December 31, 2020	37
Thereafter	167
Commercial servicing rights
Future amortization expense for amortizable intangible assets [Line Items]
Six months ending December 31, 2015	421
Year ending December 31, 2016	821
Year ending December 31, 2017	769
Year ending December 31, 2018	676
Year ending December 31, 2019	504
Year ending December 31, 2020	314
Thereafter	$ 439

Goodwill, Core Deposit Premiu62

Goodwill, Core Deposit Premium and Other Intangible Assets (Mortgage loans servicing) (Details) - USD ($)	Jan. 16, 2015	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Valuation servicing rights in tranches [Line Items]
Mortgage loans serviced for others		$ 3,790,000,000		$ 3,500,000,000
Valuation allowance		0
Mortgage Servicing Rights
Valuation servicing rights in tranches [Line Items]
Servicing asset at amortized value		36,971,000	$ 31,471,000	34,200,000
Valuation allowance for servicing rights portfolio		$ 0		$ 0
Prepayment rate		11.43%		11.40%
Discount rate		9.22%		9.20%
Fees collected for servicing of mortgage loans		$ 5,000,000	$ 4,200,000
Mortgage Servicing Rights | Minimum
Valuation servicing rights in tranches [Line Items]
Average cap rate		0.65%		0.75%
Mortgage Servicing Rights | Maximum
Valuation servicing rights in tranches [Line Items]
Average cap rate		1.38%		1.39%
Mortgage Servicing Rights 15-year Tranche
Valuation servicing rights in tranches [Line Items]
Servicing asset, agreement term		15 years
Mortgage Servicing Rights 30-year Tranche
Valuation servicing rights in tranches [Line Items]
Servicing asset, agreement term		30 years
Commercial Servicing Rights
Valuation servicing rights in tranches [Line Items]
Servicing asset at amortized value		$ 4,600,000
Valuation allowance for servicing rights portfolio		$ 0		$ 0
Fees collected for servicing of mortgage loans	$ 360,000
Loans serviced for Small Business Administration and US Department of Agriculture	$ 159,600,000

Goodwill, Core Deposit Premiu63

Goodwill, Core Deposit Premium and Other Intangible Assets (Changes in capitalized mortgage servicing rights) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Mortgage servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 24,984	$ 21,788
Originations	7,015	3,344
Amortization	(4,360)	(2,355)
Balance at end of period	27,639	22,777
Fair value of mortgage servicing rights	$ 36,971	$ 31,471	$ 34,200
Mortgage servicing rights, net to servicing portfolio	0.73%	0.71%
Commercial servicing rights
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period	$ 0	$ 0
Acquired	4,255	0
Originations	141	0
Amortization	(452)	0
Balance at end of period	3,944	$ 0
Fair value of mortgage servicing rights	$ 4,600

Derivative Financial Instrume64

Derivative Financial Instruments (Cash collateral on derivative financial instruments) (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Cash pledged as collateral	$ 3,000,000	$ 5,300,000
Counterparties
Derivative [Line Items]
Cash pledged as collateral	$ 2,400,000	$ 0

Derivative Financial Instrume65

Derivative Financial Instruments (Estimated cash payments and reclassification to interest expense) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Change in net unrealized losses on cash flow hedges	$ 1.1
Estimated amount to be reclassified from accumulated other comprehensive income to interest expense within the next twelve months	$ 2.2

Derivative Financial Instrume66

Derivative Financial Instruments (Executed interest rate swap) (Details) - Derivative Financial Instruments $ in Millions	Jun. 30, 2015USD ($)transaction	Mar. 31, 2015USD ($)transaction	Apr. 20, 2011USD ($)
Derivative [Line Items]
Derivative, notional amount			$ 15
Heartland Financial Statutory Trust VI
Derivative [Line Items]
Derivative, notional amount		$ 20
Number of swap transactions | transaction		2
Cash Flow Hedges
Derivative [Line Items]
Derivative, notional amount	$ 85
Number of swap transactions | transaction	3
Cash Flow Hedges | Heartland Financial Statutory Trust IV, V and VII
Derivative [Line Items]
Derivative, notional amount	$ 65
Cash Flow Hedges | Morrill Statutory Trust I and II
Derivative [Line Items]
Derivative, notional amount	$ 20

Derivative Financial Instrume67

Derivative Financial Instruments (Balance sheet category and fair values of derivative instruments (cash flow hedges)) (Details) - Interest Rate Swap - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	$ 9,667	$ 10,369
Fair Value	$ (159)	$ (248)
Receive Rate	2.937%	2.915%
Weighted Average Pay Rate	5.14%	5.14%
Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	$ 25,000	$ 25,000
Fair Value	$ (523)	$ (534)
Receive Rate	0.283%	0.243%
Weighted Average Pay Rate	2.255%	2.255%
Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	$ 20,000	$ 20,000
Fair Value	$ (877)	$ (1,046)
Receive Rate	0.283%	0.234%
Weighted Average Pay Rate	3.22%	3.22%
Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	$ 20,000	$ 20,000
Fair Value	$ (1,680)	$ (1,748)
Receive Rate	0.271%	0.232%
Weighted Average Pay Rate	3.355%	3.355%
Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	$ 10,000	$ 10,000
Fair Value	$ (86)	$ (35)
Receive Rate	0.281%	0.255%
Weighted Average Pay Rate	1.674%	1.674%
Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	$ 10,000	$ 10,000
Fair Value	$ (86)	$ (35)
Receive Rate	0.283%	0.243%
Weighted Average Pay Rate	1.658%	1.658%
Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	$ 20,000
Fair Value	$ 491
Receive Rate	1.70%
Weighted Average Pay Rate	2.39%
Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	$ 20,000
Fair Value	$ 452
Receive Rate	1.676%
Weighted Average Pay Rate	2.352%

Derivative Financial Instrume68

Derivative Financial Instruments (Gains (losses) recognized on derivatives (cash flow hedges)) (Details) - Interest Rate Swap - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	$ 50	$ 44	$ 89	$ 95
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	(56)	(64)	(113)	(129)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	387	(372)		(310)
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	(126)	(129)		(129)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	124	65	11	179
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	(150)	(151)	(252)	(302)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	252	(159)	169	(240)
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	(155)	(156)	(301)	(315)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	57	(86)	68	(41)
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	(36)	(37)	(315)	(37)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	55	(85)	(51)	(40)
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	(36)	(36)	(71)	(36)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	584	0	(51)	146
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	0	0	(71)	(146)
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	559		452
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	0		0
Interest Expense
Trading Activity, Gains and Losses, Net [Line Items]
Effective Portion, Recognized in OCI, Amount of Gain (Loss)			491
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)			0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0	0	0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0		0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0	0	0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0	0	0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0	0	0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0	0	0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	$ 0	0	$ 0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	$ 0		0
Other Income
Trading Activity, Gains and Losses, Net [Line Items]
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)			$ 0

Derivative Financial Instrume69

Derivative Financial Instruments (Balance sheet category and fair values of derivative instruments (not designated as hedging instruments)) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Other Assets | Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Notional Amount	$ 197,970	$ 74,863
Fair Value	6,558	2,496
Other Assets | Forward commitments
Derivatives, Fair Value [Line Items]
Notional Amount	301,592	88,484
Fair Value	2,834	275
Other Liabilities | Forward commitments
Derivatives, Fair Value [Line Items]
Notional Amount	160,960	218,337
Fair Value	$ (603)	$ (1,619)

Derivative Financial Instrume70

Derivative Financial Instruments (Derivative instruments gains and losses recognized (not designated as hedging instruments)) (Details) - Gains on Sale of Loans Held for Sale - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest rate lock commitments
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) Recognized	$ (1,712)	$ 3,435	$ 3,832	$ 5,317
Forward commitments
Trading Activity, Gains and Losses, Net [Line Items]
Gain (Loss) Recognized	$ 3,700	$ (1,837)	$ 3,575	$ (2,979)

Derivative Financial Instrume71

Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Cash pledged as collateral	$ 3,000	$ 5,300
Back-to-back Loan Swaps
Derivative [Line Items]
Derivative, notional amount	16,200
Back-to-back Loan Swaps | Other Assets
Derivative [Line Items]
Derivative assets, fair value	193
Back-to-back Loan Swaps | Other Liabilities
Derivative [Line Items]
Derivative liabilities, fair value	$ 193
Fair Value Hedge | Interest Rate Swap
Derivative [Line Items]
Derivative, fixed interest rate	3.40%
Derivative, basis spread on LIBOR	0.88%
Derivative, notional amount	$ 13,800
Cash pledged as collateral	414
Derivative liabilities, fair value	$ 3

Fair Value (Fair value measurem

Fair Value (Fair value measurement recurring) (Details) - USD ($) $ in Thousands		Jun. 30, 2015		Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		$ 1,315,699		$ 1,401,868
U.S. government corporations and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		15,802		24,093
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		1,108,050		1,219,266
Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		186,001		153,426
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		740		0
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		5,106		5,083
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		523		2,529
Derivative assets		0		0
Derivative liabilities		0		0
Level 1 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Level 1 | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		1,308,909		1,394,392
Derivative assets		1,136		0
Derivative liabilities		3,607		3,646
Level 2 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Level 2 | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		2,834		275
Derivative liabilities		603		1,619
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		6,267		4,947
Derivative assets		0		0
Derivative liabilities		0		0
Level 3 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		6,558		2,496
Level 3 | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		1,326,227		1,404,639
Total liabilities at fair value		4,210		5,265
Recurring Basis | Derivative financial instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		1,136
Derivative liabilities		3,607		3,646
Recurring Basis | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		6,558		2,496
Recurring Basis | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		2,834		275
Derivative liabilities		603		1,619
Recurring Basis | U.S. government corporations and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		15,802		24,093
Recurring Basis | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		1,108,050		1,219,266
Recurring Basis | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		186,001		153,426
Recurring Basis | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		740		0
Recurring Basis | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		5,106		5,083
Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		523		2,529
Total liabilities at fair value		0		0
Recurring Basis | Level 1 | Derivative financial instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0
Derivative liabilities		0		0
Recurring Basis | Level 1 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Recurring Basis | Level 1 | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Recurring Basis | Level 1 | U.S. government corporations and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		523		2,529
Recurring Basis | Level 1 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 1 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 1 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		1,312,879		1,394,667
Total liabilities at fair value		4,210		5,265
Recurring Basis | Level 2 | Derivative financial instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		1,136
Derivative liabilities		3,607		3,646
Recurring Basis | Level 2 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Recurring Basis | Level 2 | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		2,834		275
Derivative liabilities		603		1,619
Recurring Basis | Level 2 | U.S. government corporations and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		15,279		21,564
Recurring Basis | Level 2 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		1,102,523		1,214,319
Recurring Basis | Level 2 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		186,001		153,426
Recurring Basis | Level 2 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		5,106		5,083
Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value		12,825		7,443
Total liabilities at fair value		0		0
Recurring Basis | Level 3 | Derivative financial instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0
Derivative liabilities		0		0
Recurring Basis | Level 3 | Interest rate lock commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		6,558	[1]	2,496	[2]
Recurring Basis | Level 3 | Forward commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets		0		0
Derivative liabilities		0		0
Recurring Basis | Level 3 | U.S. government corporations and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 3 | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		5,527		4,947
Recurring Basis | Level 3 | Obligations of states and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0		0
Recurring Basis | Level 3 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	[3]	740		0
Recurring Basis | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		$ 0		$ 0
[1]	The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at June 30, 2015, was 86%.
[2]	The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at December 31, 2014, was 84%.
[3]	The unobservable input is the bank analysis market using Moody's Global Bank Rating Methodology. The analysis takes into consideration various performance metrics as well as yield on the debt securities and credit risk analysis.

Fair Value (Fair value measur73

Fair Value (Fair value measurement non-recurring) (Details) - Nonrecurring Basis - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		$ 9,443	$ 19,345
Other real estate owned		16,983	19,016
Year-to- Date Losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		223	3,402
Other real estate owned		855	1,938
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Other real estate owned		0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Other real estate owned		0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		9,443	19,345
Other real estate owned	[1]	16,983	19,016
Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	1,033
Commercial | Year-to- Date Losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	659
Commercial | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Commercial | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Commercial | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	[1]	0	1,033
Commercial real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		4,927	12,584
Commercial real estate | Year-to- Date Losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		160	492
Commercial real estate | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Commercial real estate | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Commercial real estate | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	[1]	4,927	12,584
Agricultural and agricultural real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	552
Agricultural and agricultural real estate | Year-to- Date Losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	2,229
Agricultural and agricultural real estate | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Agricultural and agricultural real estate | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Agricultural and agricultural real estate | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	[1]	0	552
Residential real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		2,662	3,173
Residential real estate | Year-to- Date Losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		63	0
Residential real estate | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Residential real estate | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Residential real estate | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	[1]	2,662	3,173
Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		1,854	2,003
Consumer | Year-to- Date Losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	22
Consumer | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Consumer | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans		0	0
Consumer | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral dependent impaired loans	[1]	$ 1,854	$ 2,003
[1]	Third party appraisals are obtained as to the value of the underlying asset, but disclosure of this information would not provide meaningful information, as the range will vary widely from loan to loan. Types of discounts considered included age of the appraisal, local market conditions, current condition of the property, and estimated sales costs. These discounts will also vary from loan to loan, thus providing range would not be meaningful.

Fair Value (Quantitative Inform

Fair Value (Quantitative Information about Level 3 fair value measurements) (Details) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
		Jun. 30, 2015		Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Securities available for sale		$ 1,315,699		$ 1,401,868
Corporate Debt Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Securities available for sale		740		0
Recurring Basis | Interest rate lock commitments
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Derivative assets		6,558		2,496
Recurring Basis | Corporate Debt Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Securities available for sale		740		0
Nonrecurring Basis
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		9,443		19,345
Other real estate owned		16,983		19,016
Nonrecurring Basis | Commercial
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		0		1,033
Nonrecurring Basis | Commercial real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		4,927		12,584
Nonrecurring Basis | Agricultural and agricultural real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		0		552
Nonrecurring Basis | Residential real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		2,662		3,173
Nonrecurring Basis | Consumer
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		1,854		2,003
Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Securities available for sale		6,267		4,947
Derivative assets		0		0
Level 3 | Interest rate lock commitments
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Derivative assets		6,558		2,496
Level 3 | Recurring Basis | Interest rate lock commitments
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Derivative assets		$ 6,558	[1]	$ 2,496	[2]
Closing ratio		86.00%		84.00%
Level 3 | Recurring Basis | Z-Tranche Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Securities available for sale		$ 5,527		$ 4,947
Level 3 | Recurring Basis | Z-Tranche Securities | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pretax discount rate		7.00%		7.00%
Actual defaults		16.29%		15.60%
Actual deferrals		5.60%		7.20%
Level 3 | Recurring Basis | Z-Tranche Securities | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Pretax discount rate		9.00%		9.00%
Actual defaults		36.53%		30.60%
Actual deferrals		27.01%		17.30%
Level 3 | Recurring Basis | Z-Tranche Securities | Weighted Average
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Actual defaults		29.70%		24.50%
Actual deferrals		17.21%		12.90%
Level 3 | Recurring Basis | Corporate Debt Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Securities available for sale	[3]	$ 740		$ 0
Level 3 | Nonrecurring Basis
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans		9,443		19,345
Other real estate owned	[4]	16,983		19,016
Level 3 | Nonrecurring Basis | Commercial
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans	[4]	0		1,033
Level 3 | Nonrecurring Basis | Commercial real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans	[4]	4,927		12,584
Level 3 | Nonrecurring Basis | Agricultural and agricultural real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans	[4]	0		552
Level 3 | Nonrecurring Basis | Residential real estate
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans	[4]	2,662		3,173
Level 3 | Nonrecurring Basis | Consumer
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Collateral dependent impaired loans	[4]	$ 1,854		$ 2,003
[1]	The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at June 30, 2015, was 86%.
[2]	The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data; therefore providing a range would not be meaningful. The weighted average closing ratio at December 31, 2014, was 84%.
[3]	The unobservable input is the bank analysis market using Moody's Global Bank Rating Methodology. The analysis takes into consideration various performance metrics as well as yield on the debt securities and credit risk analysis.
[4]	Third party appraisals are obtained as to the value of the underlying asset, but disclosure of this information would not provide meaningful information, as the range will vary widely from loan to loan. Types of discounts considered included age of the appraisal, local market conditions, current condition of the property, and estimated sales costs. These discounts will also vary from loan to loan, thus providing range would not be meaningful.

Fair Value (Changes Level 3 ass

Fair Value (Changes Level 3 assets (fair value, recurring)) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Interest rate lock commitments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at January 1	$ 2,496	$ 1,809
Total gains (losses):
Included in earnings	3,832	2,422
Purchases, sales and settlements:
Issuances	2,530	2,038
Settlements	(2,300)	(3,773)
Balance at period end	6,558	2,496
Gain (loss) on sale of loans held-for-sale	6,600	2,500
Z-Tranche Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at January 1	4,947	3,298
Total gains (losses):
Included in earnings	0	0
Included in other comprehensive income	696	1,783
Purchases, sales and settlements:
Purchases	6	0
Sales	0	0
Settlements	(122)	(134)
Balance at period end	5,527	4,947
Corporate Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at January 1	0	0
Total gains (losses):
Included in earnings	0	0
Included in other comprehensive income	0	0
Purchases, sales and settlements:
Purchases	0	0
Acquired	740	0
Sales	0	0
Settlements	0	0
Balance at period end	$ 740	$ 0

Fair Value (Estimated fair valu

Fair Value (Estimated fair value financial instruments (incl. carrying amounts)) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financial assets:
Securities available for sale	$ 1,315,699	$ 1,401,868
Held to maturity securities	292,564	296,768
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	119,722	73,871
Time deposits in other financial institutions	2,355	2,605
Securities available for sale	523	2,529
Held to maturity securities	0	0
Other investments	0	0
Loans held for sale	0	0
Loans, net	0	0
Derivative assets	0	0
Financial liabilities:
Short term borrowings	0	0
Other borrowings	0	0
Derivative liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Demand Deposits
Financial liabilities:
Deposits	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Savings Deposits
Financial liabilities:
Deposits	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Time Deposits
Financial liabilities:
Deposits	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate lock commitments
Financial assets:
Derivative assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Forward commitments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial
Financial assets:
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial real estate
Financial assets:
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Agricultural and agricultural real estate
Financial assets:
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential real estate
Financial assets:
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer
Financial assets:
Loans, net	0	0
Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents	0	0
Time deposits in other financial institutions	0	0
Securities available for sale	1,308,909	1,394,392
Held to maturity securities	292,564	296,768
Other investments	20,220	20,263
Loans held for sale	105,898	70,514
Loans, net	4,389,607	3,814,536
Derivative assets	1,136	0
Financial liabilities:
Short term borrowings	477,918	330,264
Other borrowings	299,845	401,978
Derivative liabilities	3,607	3,646
Significant Other Observable Inputs (Level 2) | Demand Deposits
Financial liabilities:
Deposits	1,536,355	1,295,193
Significant Other Observable Inputs (Level 2) | Savings Deposits
Financial liabilities:
Deposits	2,816,666	2,687,493
Significant Other Observable Inputs (Level 2) | Time Deposits
Financial liabilities:
Deposits	964,248	785,336
Significant Other Observable Inputs (Level 2) | Interest rate lock commitments
Financial assets:
Derivative assets	0	0
Significant Other Observable Inputs (Level 2) | Forward commitments
Financial assets:
Derivative assets	2,834	275
Financial liabilities:
Derivative liabilities	603	1,619
Significant Other Observable Inputs (Level 2) | Commercial
Financial assets:
Loans, net	1,165,559	1,008,769
Significant Other Observable Inputs (Level 2) | Commercial real estate
Financial assets:
Loans, net	1,988,708	1,687,138
Significant Other Observable Inputs (Level 2) | Agricultural and agricultural real estate
Financial assets:
Loans, net	443,725	423,416
Significant Other Observable Inputs (Level 2) | Residential real estate
Financial assets:
Loans, net	433,293	367,005
Significant Other Observable Inputs (Level 2) | Consumer
Financial assets:
Loans, net	358,322	328,208
Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	0	0
Time deposits in other financial institutions	0	0
Securities available for sale	6,267	4,947
Held to maturity securities	0	0
Other investments	235	235
Loans held for sale	0	0
Loans, net	9,443	19,345
Derivative assets	0	0
Financial liabilities:
Short term borrowings	0	0
Other borrowings	0	0
Derivative liabilities	0	0
Significant Unobservable Inputs (Level 3) | Demand Deposits
Financial liabilities:
Deposits	0	0
Significant Unobservable Inputs (Level 3) | Savings Deposits
Financial liabilities:
Deposits	0	0
Significant Unobservable Inputs (Level 3) | Time Deposits
Financial liabilities:
Deposits	0	0
Significant Unobservable Inputs (Level 3) | Interest rate lock commitments
Financial assets:
Derivative assets	6,558	2,496
Significant Unobservable Inputs (Level 3) | Forward commitments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities	0	0
Significant Unobservable Inputs (Level 3) | Commercial
Financial assets:
Loans, net	0	1,033
Significant Unobservable Inputs (Level 3) | Commercial real estate
Financial assets:
Loans, net	4,927	12,584
Significant Unobservable Inputs (Level 3) | Agricultural and agricultural real estate
Financial assets:
Loans, net	0	552
Significant Unobservable Inputs (Level 3) | Residential real estate
Financial assets:
Loans, net	2,662	3,173
Significant Unobservable Inputs (Level 3) | Consumer
Financial assets:
Loans, net	1,854	2,003
Carrying Amount
Financial assets:
Cash and cash equivalents	119,722	73,871
Time deposits in other financial institutions	2,355	2,605
Securities available for sale	1,315,699	1,401,868
Held to maturity securities	283,258	284,587
Other investments	20,455	20,498
Loans held for sale	105,898	70,514
Loans, net	4,404,209	3,836,554
Derivative assets	1,136	0
Financial liabilities:
Short term borrowings	477,918	330,264
Other borrowings	296,594	396,255
Derivative liabilities	3,607	3,646
Carrying Amount | Demand Deposits
Financial liabilities:
Deposits	1,536,355	1,295,193
Carrying Amount | Savings Deposits
Financial liabilities:
Deposits	2,816,666	2,687,493
Carrying Amount | Time Deposits
Financial liabilities:
Deposits	964,248	785,336
Carrying Amount | Interest rate lock commitments
Financial assets:
Derivative assets	6,558	2,496
Carrying Amount | Forward commitments
Financial assets:
Derivative assets	2,834	275
Financial liabilities:
Derivative liabilities	603	1,619
Carrying Amount | Commercial
Financial assets:
Loans, net	1,176,157	1,024,065
Carrying Amount | Commercial real estate
Financial assets:
Loans, net	1,991,799	1,690,899
Carrying Amount | Agricultural and agricultural real estate
Financial assets:
Loans, net	440,864	420,623
Carrying Amount | Residential real estate
Financial assets:
Loans, net	438,184	377,094
Carrying Amount | Consumer
Financial assets:
Loans, net	357,205	323,873
Estimated Fair Value
Financial assets:
Cash and cash equivalents	119,722	73,871
Time deposits in other financial institutions	2,355	2,605
Securities available for sale	1,315,699	1,401,868
Held to maturity securities	292,564	296,768
Other investments	20,455	20,498
Loans held for sale	105,898	70,514
Loans, net	4,399,050	3,833,881
Derivative assets	1,136	0
Financial liabilities:
Short term borrowings	477,918	330,264
Other borrowings	299,845	401,978
Derivative liabilities	3,607	3,646
Estimated Fair Value | Demand Deposits
Financial liabilities:
Deposits	1,536,355	1,295,193
Estimated Fair Value | Savings Deposits
Financial liabilities:
Deposits	2,816,666	2,687,493
Estimated Fair Value | Time Deposits
Financial liabilities:
Deposits	964,248	785,336
Estimated Fair Value | Interest rate lock commitments
Financial assets:
Derivative assets	6,558	2,496
Estimated Fair Value | Forward commitments
Financial assets:
Derivative assets	2,834	275
Financial liabilities:
Derivative liabilities	603	1,619
Estimated Fair Value | Commercial
Financial assets:
Loans, net	1,165,559	1,009,802
Estimated Fair Value | Commercial real estate
Financial assets:
Loans, net	1,993,635	1,699,722
Estimated Fair Value | Agricultural and agricultural real estate
Financial assets:
Loans, net	443,725	423,968
Estimated Fair Value | Residential real estate
Financial assets:
Loans, net	435,955	370,178
Estimated Fair Value | Consumer
Financial assets:
Loans, net	$ 360,176	$ 330,211

Segment Reporting (Details)

Segment Reporting (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)segment	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment			2
Segment Reporting Information [Line Items]
Net interest income	$ 57,644	$ 50,799	$ 111,574	$ 99,411
Provision for loan losses	5,674	2,751	7,345	9,082
Total noninterest income	30,661	21,535	61,324	40,385
Total noninterest expense	63,482	54,659	123,096	107,197
INCOME BEFORE INCOME TAXES	19,149	14,924	42,457	23,517
Average Loans, for the period	4,447,124	3,692,159	4,357,855	3,631,977
Segment Assets, at period end	6,717,007	5,913,918	6,717,007	5,913,918	$ 6,051,812
Operating Segments | Community and Other Banking
Segment Reporting Information [Line Items]
Net interest income	55,988	50,285	108,877	98,140
Provision for loan losses	5,674	2,751	7,345	9,082
Total noninterest income	15,603	11,991	32,664	23,517
Total noninterest expense	48,987	43,543	96,446	85,880
INCOME BEFORE INCOME TAXES	16,930	15,982	37,750	26,695
Average Loans, for the period	4,340,289	3,621,543	4,265,624	3,575,284
Segment Assets, at period end	6,579,225	5,799,636	6,579,225	5,799,636
Operating Segments | Retail Mortgage Banking
Segment Reporting Information [Line Items]
Net interest income	1,656	514	2,697	1,271
Provision for loan losses	0	0	0	0
Total noninterest income	15,058	9,544	28,660	16,868
Total noninterest expense	14,495	11,116	26,650	21,317
INCOME BEFORE INCOME TAXES	2,219	(1,058)	4,707	(3,178)
Average Loans, for the period	106,835	70,616	92,231	56,693
Segment Assets, at period end	$ 137,782	$ 114,282	$ 137,782	$ 114,282