Heartland Financial USA (HTLF) 10-Q 9 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	7-May-14
Document Information [Line Items]	'	'
Entity Registrant Name	'HEARTLAND FINANCIAL USA INC	'
Entity Central Index Key	'0000920112	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	18,454,149

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$84,744	$118,441
Federal funds sold and other short-term investments	3,884	6,829
Cash and cash equivalents	88,628	125,270
Time deposits in other financial institutions	3,355	3,355
Securities:	'	'
Trading, at fair value	0	1,801
Available for sale, at fair value (cost of $1,405,816 at March 31, 2014, and $1,659,456 at December 31, 2013)	1,400,756	1,633,902
Held to maturity, at cost (fair value of $263,169 at March 31, 2014, and $237,437 at December 31, 2013)	257,927	237,498
Other investments, at cost	18,755	21,843
Loans held for sale	54,862	46,665
Loans and leases receivable:	'	'
Held to maturity	3,577,776	3,496,952
Loans covered by loss share agreements	5,466	5,749
Allowance for loan and lease losses	-38,573	-41,685
Loans and leases receivable, net	3,544,669	3,461,016
Premises, furniture and equipment, net	135,054	135,714
Other real estate, net	28,083	29,852
Goodwill	35,583	35,583
Other intangible assets, net	32,690	32,959
Cash surrender value on life insurance	81,486	81,110
FDIC indemnification asset	190	249
Other assets	65,064	76,899
TOTAL ASSETS	5,747,102	5,923,716
Deposits:	'	'
Demand	1,195,457	1,238,581
Savings	2,582,166	2,535,242
Time	885,741	892,676
Total deposits	4,663,364	4,666,499
Short-term borrowings	256,250	408,756
Other borrowings	334,916	350,109
Accrued expenses and other liabilities	35,237	58,892
TOTAL LIABILITIES	5,289,767	5,484,256
STOCKHOLDERS' EQUITY:	'	'
Common stock (par value $1 per share; authorized 25,000,000 shares; issued 18,454,828 shares at March 31, 2014 and 18,399,156 shares at December 31, 2013)	18,455	18,399
Capital surplus	92,199	91,632
Retained earnings	269,908	265,067
Accumulated other comprehensive loss	-4,903	-17,336
Treasury stock at cost (780 shares at March 31, 2014, and 0 shares at December 31, 2013)	-22	0
TOTAL STOCKHOLDERS' EQUITY	457,335	439,460
TOTAL LIABILITIES AND EQUITY	5,747,102	5,923,716
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_Sheet_Par

Consolidated Balance Sheet (Parentheticals) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Cost of available for sale securities	$1,405,816,000	$1,659,456,000
Fair value of held to maturity securities	263,169,000	237,437,000
Common stock, par value (in dollars per share)	$1	$1
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	18,454,828	18,399,156
Treasury stock shares	780	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	$81,700,000	$81,700,000

Consolidated_Statements_of_Inc

Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
INTEREST INCOME:	'	'
Interest and fees on loans and leases	$46,384	$39,827
Interest on securities:	'	'
Taxable	7,761	4,659
Nontaxable	3,122	3,198
Interest on interest bearing deposits in other financial institutions	7	4
TOTAL INTEREST INCOME	57,274	47,688
INTEREST EXPENSE:	'	'
Interest on deposits	4,778	5,076
Interest on short-term borrowings	226	148
Interest on other borrowings (includes $521 and $505 of interest expense related to derivatives reclassified from accumulated other comprehensive loss for the three months ended March 31, 2014 and 2013, respectively)	3,658	3,797
TOTAL INTEREST EXPENSE	8,662	9,021
NET INTEREST INCOME	48,612	38,667
Provision for loan and lease losses	6,331	637
NET INTEREST INCOME AFTER PROVISION FOR LOAN AND LEASE LOSSES	42,281	38,030
NONINTEREST INCOME:	'	'
Service charges and fees	4,896	4,008
Loan servicing income	1,511	126
Trust fees	3,210	2,904
Brokerage and insurance commissions	1,123	951
Securities gains, net (includes $781 and $3,427 of net security gains reclassified from accumulated other comprehensive loss for the three months ended March 31, 2014 and 2013, respectively)	781	3,427
Gain (loss) on trading account securities	-38	314
Gains on sale of loans held for sale	6,379	13,157
Loss on sales/valuations of other real estate and repossessed assets, net	-123	-502
Valuation adjustment on mortgage servicing rights	0	496
Income on bank owned life insurance	363	405
Other noninterest income	625	680
TOTAL NONINTEREST INCOME	18,727	25,966
NONINTEREST EXPENSES:	'	'
Salaries and employee benefits	32,319	29,740
Occupancy	4,050	3,185
Furniture and equipment	1,890	2,051
Professional fees	4,526	3,543
FDIC insurance assessments	980	902
Advertising	1,188	1,228
Intangible assets amortization	624	200
Other real estate and loan collection expenses	1,052	838
Other noninterest expenses	5,786	4,558
TOTAL NONINTEREST EXPENSES	52,415	46,245
INCOME BEFORE INCOME TAXES	8,593	17,751
Income taxes (includes $97 and $1,099 of income tax expense reclassified from accumulated other comprehensive loss for the three months ended March 31, 2014 and 2013, respectively)	1,703	5,199
NET INCOME	6,890	12,552
Net income available to noncontrolling interest, net of tax	0	-64
NET INCOME ATTRIBUTABLE TO HEARTLAND	6,890	12,488
Preferred dividends and discount	-204	-408
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$6,686	$12,080
EARNINGS PER COMMON SHARE - BASIC (in dollars per share)	$0.36	$0.72
EARNINGS PER COMMON SHARE - DILUTED (in dollars per share)	$0.36	$0.70
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$0.10	$0.10

Consolidated_Statements_of_Inc1

Consolidated Statements of Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Interest on other borrowings	$3,658	$3,797
Securities gains, net	781	3,427
Income taxes	1,703	5,199
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Derivatives [Member]	'	'
Interest on other borrowings	521	505
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'
Securities gains, net	781	3,427
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Other Comprehensive Income (Loss) [Member]	'	'
Income taxes	$97	$1,099

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
NET INCOME	$6,890	$12,552
Securities:	'	'
Net change in unrealized gain (loss) on securities	20,909	-1,681
Reclassification adjustment for net gain realized in net income	-781	-3,427
Net change in non-credit related other than temporary impairment	24	24
Income taxes	-7,959	1,901
Other comprehensive income (loss) on securities	12,193	-3,183
Derivatives used in cash flow hedging relationships:	'	'
Net change in unrealized gain (loss) on derivatives	-139	82
Reclassification adjustment for net loss on derivatives realized in net income	521	505
Income taxes	-142	-214
Other comprehensive income on cash flow hedges	240	373
Other comprehensive income (loss)	12,433	-2,810
Comprehensive income	19,323	9,742
Less: comprehensive income attributable to noncontrolling interest	0	-64
COMPREHENSIVE INCOME ATTRIBUTABLE TO HEARTLAND	$19,323	$9,678

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
Net income	$6,890	$12,552
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	4,090	4,071
Provision for loan and lease losses	6,331	637
Net amortization of premium on securities	6,659	7,604
Securities gains, net	-781	-3,427
(Increase) decrease in trading account securities	1,801	-314
Stock based compensation	1,098	989
Loss on sale of OREO and other repossessed property	123	502
Loans originated for sale	-158,779	-448,971
Proceeds on sales of loans held for sale	155,526	463,340
Net gains on sales of loans held for sale	-4,944	-9,912
Decrease in accrued interest receivable	2,304	508
Increase in prepaid expenses	-359	-398
Decrease in accrued interest payable	-750	-213
Capitalization of mortgage servicing rights	-1,435	-3,245
Valuation adjustment on mortgage servicing rights	0	-496
Other, net	-6,319	-10,862
NET CASH PROVIDED BY OPERATING ACTIVITIES	11,455	12,365
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Purchase of time deposits in other financial institutions	0	-3,605
Proceeds from the sale of securities available for sale	355,288	91,840
Proceeds from the sale of other investments	2,005	955
Proceeds from the maturity of and principal paydowns on securities available for sale	34,446	65,461
Proceeds from the maturity of and principal paydowns on securities held to maturity	182	140
Proceeds from the maturity of and principal paydowns on other securities	2,041	0
Purchase of securities available for sale	-160,286	-207,456
Purchase of securities held to maturity	-16,784	0
Purchase of other investments	-958	-2
Net (increase) decrease in loans and leases	-93,020	25,014
Capital expenditures	-2,710	-2,812
Proceeds on sale of OREO and other repossessed assets	5,079	3,513
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	125,283	-26,952
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Net increase in demand deposits and savings accounts	3,800	15,097
Net decrease in time deposit accounts	-6,935	-18,301
Net decrease in short-term borrowings	-152,506	-21,932
Proceeds from other borrowings	5,000	0
Repayments of other borrowings	-20,193	-52,448
Purchase of treasury stock	-606	-258
Proceeds from issuance of common stock	247	1,038
Excess tax benefits (liability) on exercised stock options	-138	16
Dividends paid	-2,049	-2,092
NET CASH USED BY FINANCING ACTIVITIES	-173,380	-78,880
Net decrease in cash and cash equivalents	-36,642	-93,467
Cash and cash equivalents at beginning of year	125,270	168,054
CASH AND CASH EQUIVALENTS AT END OF PERIOD	88,628	74,587
Supplemental disclosures:	'	'
Cash paid for income/franchise taxes	980	3,375
Cash paid for interest	9,412	9,234
Loans transferred to OREO	3,036	4,843
Purchases of securities available for sale, accrued, not paid	0	59,877
Sales of securities available for sale, accrued, not settled	0	19,307
Purchase of securities held to maturity, accrued, not paid	$4,160	$0

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Equity (Unaudited) (USD $)	Total	Preferred Stock [Member]	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
In Thousands, unless otherwise specified
Balance at beginning of period at Dec. 31, 2012	$404,539	$81,698	$16,828	$50,359	$236,279	$16,641	$0	$2,734
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'
Comprehensive income	9,742	'	'	'	12,488	-2,810	'	64
Cash dividends declared:	'	'	'	'	'	'	'	'
Preferred	-408	'	'	'	-408	'	'	'
Common	-1,684	'	'	'	-1,684	'	'	'
Purchase of shares of common stock	-258	'	'	'	'	'	-258	'
Issuance of shares of common stock	1,054	'	39	783	'	'	232	'
Commitments to issue common stock	989	'	'	989	'	'	'	'
Balance at end of period at Mar. 31, 2013	413,974	81,698	16,867	52,131	246,675	13,831	-26	2,798
Balance at beginning of period at Dec. 31, 2013	439,460	81,698	18,399	91,632	265,067	-17,336	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'
Comprehensive income	19,323	'	'	'	6,890	12,433	'	'
Cash dividends declared:	'	'	'	'	'	'	'	'
Preferred	-204	'	'	'	-204	'	'	'
Common	-1,845	'	'	'	-1,845	'	'	'
Purchase of noncontrolling interest	0	'	'	'	'	'	'	0
Purchase of shares of common stock	-606	'	'	'	'	'	-606	'
Issuance of shares of common stock	109	'	56	-531	'	'	584	'
Commitments to issue common stock	1,098	'	'	1,098	'	'	'	'
Balance at end of period at Mar. 31, 2014	$457,335	$81,698	$18,455	$92,199	$269,908	($4,903)	($22)	$0

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash dividends per share preferred stock (in dollars per share)	$2.50	$5
Cash dividends per share common stock (in dollars per share)	$0.10	$0.10
Shares of common stock purchased	23,285	10,050
Shares of common stock issued	78,177	48,134

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2014
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, 2013, included in the Form 10-K of Heartland Financial USA, Inc. ("Heartland") filed with the Securities and Exchange Commission on March 14, 2014. Accordingly, footnote 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 March 31, 2014, are not necessarily indicative of the results expected for the year ending December 31, 2014.
	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 three-month periods ended March 31, 2014 and 2013, are shown in the table below:
		Three Months Ended
		March 31,
	(Dollars and number of shares in thousands, except per share data)	2014				2013
	Net income attributable to Heartland	$	6,890			$	12,488
	Preferred dividends and discount	(204		)		(408		)
	Net income available to common stockholders	$	6,686			$	12,080
	Weighted average common shares outstanding for basic earnings per share	18,437				16,852
	Assumed incremental common shares issued for common stock equivalents	288				335
	Weighted average common shares for diluted earnings per share	18,725				17,187
	Earnings per common share — basic	$	0.36			$	0.72
	Earnings per common share — diluted	$	0.36			$	0.7
	Number of antidilutive common stock equivalents excluded from diluted earnings per share computation	95				105
	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 355,616 shares of common stock at March 31, 2014, 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 (expense) related to the exercise, vesting, and forfeiture of equity-based awards reflected in additional paid-in-capital, not taxes payable, was ($138,000) and $16,000 during the three months ended March 31, 2014, and 2013, respectively.
	Restricted Stock Units
	The Plan permits the Compensation Committee to grant restricted stock units ("RSUs"). On March 11, 2014, the Compensation Committee granted time-based RSUs with respect to 67,065 shares of common stock and on January 22, 2013, granted time-based RSUs with respect to 72,595 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 granted in 2014 vest upon a "qualified retirement" (as defined in the RSU agreement) while the RSUs granted in 2013 allow the Compensation Committee to exercise its discretion to provide for vesting upon retirement. In both cases, 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 32,645 shares of common stock on March 11, 2014, and performance-based RSUs with respect to 40,990 shares of common stock on January 22, 2013, 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, 2014, for the 2014 RSUs, and earnings and assets on December 31, 2013, for the 2013 RSUs, and then on time-based vesting conditions. For the grants awarded in 2014, the portion of the RSUs earned based on performance vest on December 31, 2016, if the executive remains employed on that date, and for the grants awarded in 2013, the portion of the RSUs earned based on performance vest on December 31, 2015, subject to employment on that date.
	The Compensation Committee also has the authority to issue shares in conjunction with employment agreements for executive level employees and may also elect to compensate members of the Board of Directors by awarding RSUs. During the three months ended March 31, 2014, 9,000 RSUs were granted under this authority. There were no RSUs granted during the three months ended March 31, 2013, related to employment contracts or board members.
	A summary of the status of the RSUs as of March 31, 2014 and 2013, and changes during the three months ended March 31, 2014 and 2013, follows:
		2014							2013
		Shares			Weighted-Average Grant Date				Shares		Weighted-Average Grant Date
					Fair Value						Fair Value
	Outstanding at January 1	353,070			$	18.48			348,897		$	15.75
	Granted	108,710			27.29				113,585		26.86
	Vested	(67,024	)		15.82				(30,288	)	13.95
	Forfeited	(2,003	)		17.26				(170	)	20.64
	Outstanding at March 31	392,753			$	21.5			432,024		$	19.06
	Total compensation costs recorded for RSUs were $1.1 million and $989,000 for the three months ended March 31, 2014, and 2013, respectively. As of March 31, 2014, there were $4.0 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 three months of 2014 and 2013. 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 March 31, 2014 and 2013, and changes during the three months ended March 31, 2014 and 2013, follows:
		2014							2013
		Shares			Weighted-Average				Shares		Weighted-Average
					Exercise Price						Exercise Price
	Outstanding at January 1	261,936			$	23.6			377,907		$	22.62
	Granted	—			—				—		—
	Exercised	(5,000	)		19.13				(9,835	)	16.69
	Forfeited	(5,500	)		26.88				(1,800	)	26.68
	Outstanding at March 31	251,436			$	23.62			366,272		$	22.76
	Options exercisable at March 31	251,436			$	23.62			366,272		$	22.76
	At March 31, 2014, the vested options totaled 251,436 shares with a weighted average exercise price of $23.62 per share and a weighted average remaining contractual life of 2.72 years. The intrinsic value (the difference between the market price and the aggregate exercise price) for the vested options as of March 31, 2014, was $1.1 million. The intrinsic value for the total of all options exercised during the three months ended March 31, 2014, was $39,000.
	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 $96,000 for the three months ended March 31, 2014, and $164,000 for the three months ended March 31, 2013.
	Total compensation costs recorded for options were $0 and $10,000 for the three months ended March 31, 2014, and 2013, respectively. There are no unrecorded compensation costs related to options at March 31, 2014.
	Subsequent Events
	Heartland had no subsequent events through the filing date of this quarterly report on Form 10-Q with the SEC.
	Effect of New Financial Accounting Standards
	In July 2013, the FASB issued ASU No. 2013-11, "Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists," to eliminate the diversity in practice and to increase the comparability of financial statements among companies. The guidance requires that a reporting entity generally must show an unrecognized tax benefit, or a portion of an unrecognized tax benefit, for a net operating loss carryforward, similar tax loss or a tax credit carryforward as a reduction of a deferred tax asset. However, the entity should present the unrecognized tax benefit as a liability and not as a reduction of a deferred tax asset if the carryforward or tax loss is not available on the financial statement date to settle any additional income tax liability that would result from the disallowance of the tax position under the applicable tax law, or the applicable tax law does not require the company to use, and the company does not intend to use, the carryforward or tax loss to settle additional income taxes resulting from the disallowance of the tax position. The guidance does not require any new recurring disclosures because it does not affect the recognition or measurement of uncertain tax positions. Heartland adopted this standard on January 1, 2014, 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 2014-01, "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 benefits 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. Early adoption is permitted. Heartland is in the process of evaluating the impact that adoption of this guidance will have 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 does not expect the adoption of this standard to have a material impact on the results of operations, financial position, and liquidity.
	Reclassifications
	In the first quarter of 2014, Heartland revised the classification of mortgage servicing rights income from loan servicing income to gain on sale of loans held for sale. The reclassification is presented in both the current and prior reporting periods. For the three months ended March 31, 2014, $1.4 million was reclassified from loan servicing income to gain on sale of loans held for sale. For the three months ended March 31, 2013, $3.2 million was reclassified from loan servicing income to gain on sale of loans held for sale.
	During the first quarter of 2014, Heartland revised the classification of loss on sales/valuations of other real estate and repossessed assets, net, from other real estate and loan collection expenses to a specific noninterest income classification. This reclassification is presented in both the current and prior reporting periods. For the three months ended March 31, 2014, losses of $123,000 were reclassified from other real estate and loan collection expenses to other noninterest income. For the three months ended March 31, 2013, losses of $502,000 were reclassified from other real estate and loan collection expenses to other noninterest income. This reclassification results in other real estate and loan collection expenses for the three months ended March 31, 2013, decreasing from $1.3 million as previously reported to $838,000.
	These reclassifications do not have a material impact on Heartland's financial statements and do not affect the financial results. Heartland believes these reclassifications are more consistent with industry reporting practices.

Securities

Securities	3 Months Ended
	Mar. 31, 2014
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 March 31, 2014, and December 31, 2013, are summarized in the table below, in thousands:
		Amortized			Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair
					Gains			Losses			Value
	March 31, 2014
	U.S. government corporations and agencies	$	147,350		$	115		$	(769	)	$	146,696
	Mortgage-backed securities	1,052,695			10,035			(13,109		)	1,049,621
	Obligations of states and political subdivisions	200,766			2,423			(3,791		)	199,398
	Total debt securities	1,400,811			12,573			(17,669		)	1,395,715
	Equity securities	5,005			36			—			5,041
	Total	$	1,405,816		$	12,609		$	(17,669	)	$	1,400,756
	December 31, 2013
	U.S. government corporations and agencies	$	220,157		$	147		$	(2,001	)	$	218,303
	Mortgage-backed securities	1,156,983			9,538			(22,574		)	1,143,947
	Obligations of states and political subdivisions	277,320			1,706			(12,402		)	266,624
	Total debt securities	1,654,460			11,391			(36,977		)	1,628,874
	Equity securities	4,996			32			—			5,028
	Total	$	1,659,456		$	11,423		$	(36,977	)	$	1,633,902
	At both March 31, 2014, and December 31, 2013, 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 March 31, 2014, and December 31, 2013, are summarized in the table below, in thousands:
		Amortized			Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair
					Gains			Losses			Value
	March 31, 2014
	Mortgage-backed securities	$	5,933		$	245		$	(372	)	$	5,806
	Obligations of states and political subdivisions	251,994			8,416			(3,047		)	257,363
	Total	$	257,927		$	8,661		$	(3,419	)	$	263,169
	December 31, 2013
	Mortgage-backed securities	$	5,973		$	199		$	(321	)	$	5,851
	Obligations of states and political subdivisions	231,525			5,801			(5,740		)	231,586
	Total	$	237,498		$	6,000		$	(6,061	)	$	237,437
	At March 31, 2014, the amortized cost of the held to maturity securities is net of $797,000 of credit related OTTI and $493,000 of non-credit related OTTI. At December 31, 2013, the amortized cost of the held to maturity securities was net of $797,000 of credit related OTTI and $517,000 of non-credit related OTTI.
	Approximately 95% 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 March 31, 2014, 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	$	8,858		$	8,977
	Due in 1 to 5 years	94,678			94,865
	Due in 5 to 10 years	83,887			82,963
	Due after 10 years	160,693			159,289
	Total debt securities	348,116			346,094
	Mortgage-backed securities	1,052,695			1,049,621
	Equity securities	5,005			5,041
	Total investment securities	$	1,405,816		$	1,400,756
	The amortized cost and estimated fair value of debt securities held to maturity at March 31, 2014, 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	$	—		$	—
	Due in 1 to 5 years	12,588			13,416
	Due in 5 to 10 years	42,216			43,656
	Due after 10 years	197,190			200,291
	Total debt securities	251,994			257,363
	Mortgage-backed securities	5,933			5,806
	Total investment securities	$	257,927		$	263,169
	Gross gains and losses realized related to the sales of securities available for sale for the three month periods ended March 31, 2014, and 2013, are summarized as follows, in thousands:
		Three Months Ended
		March 31,
		2014			2013
	Proceeds from sales	$	355,288		$	91,840
	Gross security gains	2,472			3,622
	Gross security losses	1,691			195
	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 March 31, 2014, and December 31, 2013. 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 was March 31, 2013, and December 31, 2012, 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			Fair Value			Unrealized			Fair Value		Unrealized
Losses					Losses						Losses
March 31, 2014
U.S. government corporations and agencies	$	130,411		$	(769	)	$	—		$	—		$	130,411	$	(769	)
Mortgage-backed securities	506,526			(8,413		)	132,248			(4,696		)	638,774		(13,109		)
Obligations of states and political subdivisions	89,022			(2,414		)	26,568			(1,377		)	115,590		(3,791		)
Total temporarily impaired securities	$	725,959		$	(11,596	)	$	158,816		$	(6,073	)	$	884,775	$	(17,669	)
December 31, 2013
U.S. government corporations and agencies	$	196,345		$	(2,001	)	$	—		$	—		$	196,345	$	(2,001	)
Mortgage-backed securities	640,684			(17,064		)	118,229			(5,510		)	758,913		(22,574		)
Obligations of states and political subdivisions	196,987			(11,452		)	10,714			(950		)	207,701		(12,402		)
Total temporarily impaired securities	$	1,034,016		$	(30,517	)	$	128,943		$	(6,460	)	$	1,162,959	$	(36,977	)
Securities held to maturity	Less than 12 months						12 months or longer						Total
	Fair Value			Unrealized			Fair Value			Unrealized			Fair Value		Unrealized
				Losses						Losses					Losses
March 31, 2014
Mortgage-backed securities	$	2,163		$	(372	)	$	—		$	—		$	2,163	$	(372	)
Obligations of states and political subdivisions	32,364			(769		)	33,131			(2,278		)	65,495		(3,047		)
Total temporarily impaired securities	$	34,527		$	(1,141	)	$	33,131		$	(2,278	)	$	67,658	$	(3,419	)
December 31, 2013
Mortgage-backed securities	$	2,170		$	(319	)	$	834		$	(2	)	$	3,004	$	(321	)
Obligations of states and political subdivisions	47,175			(3,508		)	21,505			(2,232		)	68,680		(5,740		)
Total temporarily impaired securities	$	49,345		$	(3,827	)	$	22,339		$	(2,234	)	$	71,684	$	(6,061	)
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 March 31, 2014, or December 31, 2013.
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
	March 31,
	2014			2013
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		)
Total changes to AOCI for non-credit related impairment	(24		)	(24		)
Total OTTI losses (accretion) recorded on debt securities, net	$	(24	)	$	(24	)
Heartland has not experienced any OTTI writedowns since the initial impairment charge in 2012.
Included in other securities at March 31, 2014, and December 31, 2013, were shares of stock in each Federal Home Loan Bank (the "FHLB") of Des Moines, Chicago, Dallas, San Francisco, Seattle, and Topeka at an amortized cost of $12.5 million and $15.6 million , respectively.

Loans_and_Leases

Loans and Leases	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Loans and Leases	'
	LOANS AND LEASES
	Loans and leases as of March 31, 2014, and December 31, 2013, were as follows, in thousands:
		March 31, 2014				December 31, 2013
	Loans and leases receivable held to maturity:
	Commercial	$	986,713			$	950,197
	Commercial real estate	1,560,912				1,529,683
	Agricultural and agricultural real estate	370,348				376,735
	Residential real estate	365,162				349,349
	Consumer	297,978				294,145
	Gross loans and leases receivable held to maturity	3,581,113				3,500,109
	Unearned discount	(136		)		(168		)
	Deferred loan fees	(3,201		)		(2,989		)
	Total net loans and leases receivable held to maturity	3,577,776				3,496,952
	Loans covered under loss share agreements:
	Commercial and commercial real estate	2,292				2,314
	Agricultural and agricultural real estate	502				543
	Residential real estate	2,062				2,280
	Consumer	610				612
	Total loans covered under loss share agreements	5,466				5,749
	Allowance for loan and lease losses	(38,573		)		(41,685		)
	Loans and leases receivable, net	$	3,544,669			$	3,461,016
	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 USDA 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 25% 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 March 31, 2014, and December 31, 2013, 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 2014.
		Allowance For Loan and Lease Losses											Gross Loans and Leases Receivable Held to Maturity
		Ending Balance				Ending Balance				Total			Ending Balance Evaluated for Impairment Under ASC				Ending Balance Evaluated for Impairment Under ASC				Total
		Under ASC				Under ASC							310-10-35				450-20
		310-10-35				450-20
	March 31, 2014
	Commercial	$	603			$	11,030			$	11,633		$	8,172			$	978,541			$	986,713
	Commercial real estate	365				12,645				13,010			27,403				1,533,509				1,560,912
	Agricultural and agricultural real estate	15				2,556				2,571			9,006				361,342				370,348
	Residential real estate	538				3,133				3,671			7,668				357,494				365,162
	Consumer	1,745				5,631				7,376			6,175				291,803				297,978
	Unallocated	—				312				312			—				—				—
	Total	$	3,266			$	35,307			$	38,573		$	58,424			$	3,522,689			$	3,581,113
	December 31, 2013
	Commercial	$	2,817			$	10,282			$	13,099		$	14,644			$	935,553			$	950,197
	Commercial real estate	818				13,334				14,152			28,299				1,501,384				1,529,683
	Agricultural and agricultural real estate	756				2,236				2,992			16,667				360,068				376,735
	Residential real estate	605				3,115				3,720			7,214				342,135				349,349
	Consumer	1,721				6,001				7,722			5,137				289,008				294,145
	Unallocated	—				—				—			—				—				—
	Total	$	6,717			$	34,968			$	41,685		$	71,961			$	3,428,148			$	3,500,109
	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 March 31, 2014, and December 31, 2013, in thousands. There were no nonaccrual leases, accruing leases past due 90 days or more or restructured leases at March 31, 2014, and December 31, 2013.
		March 31, 2014				31-Dec-13
	Nonaccrual loans	$	26,630			$	29,313
	Nonaccrual troubled debt restructured loans	5,298				13,081
	Total nonaccrual loans	$	31,928			$	42,394
	Accruing loans past due 90 days or more	$	—			$	24
	Performing troubled debt restructured loans	$	12,548			$	19,353
	The following tables provide information on troubled debt restructured loans that were modified during the three months ended March 31, 2014, and March 31, 2013, dollars in thousands:
		Three Months Ended
		March 31,
		2014										2013
		Number			Pre-				Post-			Number			Pre-				Post-
		of Loans			Modification				Modification			of Loans			Modification				Modification
					Recorded				Recorded						Recorded				Recorded
		Investment			Investment						Investment				Investment
Commercial	—			$	—			$	—		2			$	4,670			$	4,670
Commercial real estate	1			368				368			—			—				—
Total commercial and commercial real estate	1			368				368			2			4,670				4,670
Agricultural and agricultural real estate	—			—				—			3			2,576				2,576
Residential real estate	—			—				—			2			646				646
Consumer	—			—				—			—			—				—
Total	1			$	368			$	368		7			$	7,892			$	7,892
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 March 31, 2014, there were no commitments to extend credit to any of the borrowers with an existing troubled debt restructuring.
Heartland had no troubled debt restructured loans for which there was a payment default during the three months ended March 31, 2014, and March 31, 2013, 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 March 31, 2014, Heartland had no loans classified as doubtful or 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 March 31, 2014, and December 31, 2013, in thousands:
	Pass				Nonpass				Total
March 31, 2014
Commercial	$	896,019			$	90,694			$	986,713
Commercial real estate	1,401,965				158,947				1,560,912
Total commercial and commercial real estate	2,297,984				249,641				2,547,625
Agricultural and agricultural real estate	330,764				39,584				370,348
Residential real estate	340,936				24,226				365,162
Consumer	288,653				9,325				297,978
Total gross loans and leases receivable held to maturity	$	3,258,337			$	322,776			$	3,581,113
December 31, 2013
Commercial	$	871,825			$	78,372			$	950,197
Commercial real estate	1,390,820				138,863				1,529,683
Total commercial and commercial real estate	2,262,645				217,235				2,479,880
Agricultural and agricultural real estate	335,821				40,914				376,735
Residential real estate	333,161				16,188				349,349
Consumer	284,148				9,997				294,145
Total gross loans and leases receivable held to maturity	$	3,215,775			$	284,334			$	3,500,109
The nonpass category in the table above is comprised of approximately 70% special mention and 30% substandard as of March 31, 2014. The percent of nonpass loans on nonaccrual status as of March 31, 2014, was 10%. As of December 31, 2013, the nonpass category in the table above was comprised of approximately 59% special mention, 38% substandard, and 3% doubtful. The percent of nonpass loans on nonaccrual status as of December 31, 2013, was 15%. Loans delinquent 30 to 89 days as a percent of total loans were 0.31% at March 31, 2014 compared to .30% at December 31, 2013. 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 March 31, 2014, and December 31, 2013, in thousands:
	Accruing Loans and Leases
	30-59 Days				60-89 Days				90 Days			Total				Current				Nonaccrual		Total Loans and Leases
	Past Due				Past Due				or More			Past Due
									Past Due
March 31, 2014
Commercial	$	657			$	919			$	—		$	1,576			$	978,621			$	6,516	$	986,713
Commercial real estate	3,363				1,349				—			4,712				1,543,649				12,551		1,560,912
Total commercial and commercial real estate	4,020				2,268				—			6,288				2,522,270				19,067		2,547,625
Agricultural and agricultural real estate	417				82				—			499				364,791				5,058		370,348
Residential real estate	1,580				—				—			1,580				358,051				5,531		365,162
Consumer	2,178				566				—			2,744				292,962				2,272		297,978
Total gross loans and leases receivable held to maturity	$	8,195			$	2,916			$	—		$	11,111			$	3,538,074			$	31,928	$	3,581,113
December 31, 2013
Commercial	$	697			$	741			$	—		$	1,438			$	935,508			$	13,251	$	950,197
Commercial real estate	3,042				199				24			3,265				1,511,618				14,800		1,529,683
Total commercial and commercial real estate	3,739				940				24			4,703				2,447,126				28,051		2,479,880
Agricultural and agricultural real estate	818				—				—			818				369,907				6,010		376,735
Residential real estate	1,199				56				—			1,255				342,735				5,359		349,349
Consumer	2,624				1,089				—			3,713				287,458				2,974		294,145
Total gross loans and leases receivable held to maturity	$	8,380			$	2,085			$	24		$	10,489			$	3,447,226			$	42,394	$	3,500,109
The majority of Heartland's impaired loans are those that are nonaccrual, are past due 90 days or more and still accruing 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 March 31, 2014, and December 31, 2013; the outstanding loan balance recorded on the consolidated balance sheets at March 31, 2014, and December 31, 2013; any related allowance recorded for those loans as of March 31, 2014, and December 31, 2013; the average outstanding loan balance recorded on the consolidated balance sheets during the three months ended March 31, 2014, and year ended December 31, 2013; and the interest income recognized on the impaired loans during the three months ended March 31, 2014, and year ended December 31, 2013, in thousands:
	Unpaid				Loan				Related			Year-to-				Year-to-
	Contractual				Balance				Allowance			Date				Date
	Balance								Recorded			Avg.				Interest
												Loan				Income
												Balance				Recognized
March 31, 2014
Impaired loans with a related allowance:
Commercial	$	5,063			$	4,987			$	603		$	7,690			$	5
Commercial real estate	906				887				365			3,971				8
Total commercial and commercial real estate	5,969				5,874				968			11,661				13
Agricultural and agricultural real estate	472				472				15			7,070				2
Residential real estate	1,875				1,875				538			2,286				4
Consumer	4,358				4,358				1,745			4,451				30
Total loans held to maturity	$	12,674			$	12,579			$	3,266		$	25,468			$	49
Impaired loans without a related allowance:
Commercial	$	3,879			$	3,185			$	—		$	5,368			$	20
Commercial real estate	32,538				26,516				—			22,806				272
Total commercial and commercial real estate	36,417				29,701				—			28,174				292
Agricultural and agricultural real estate	10,044				8,534				—			5,224				30
Residential real estate	6,309				5,793				—			4,729				50
Consumer	1,818				1,817				—			1,650				15
Total loans held to maturity	$	54,588			$	45,845			$	—		$	39,777			$	387
Total impaired loans held to maturity:
Commercial	$	8,942			$	8,172			$	603		$	13,058			$	25
Commercial real estate	33,444				27,403				365			26,777				280
Total commercial and commercial real estate	42,386				35,575				968			39,835				305
Agricultural and agricultural real estate	10,516				9,006				15			12,294				32
Residential real estate	8,184				7,668				538			7,015				54
Consumer	6,176				6,175				1,745			6,101				45
Total impaired loans held to maturity	$	67,262			$	58,424			$	3,266		$	65,245			$	436
	Unpaid				Loan				Related			Year-to-				Year-to-
	Contractual				Balance				Allowance			Date				Date
	Balance								Recorded			Avg.				Interest
												Loan				Income
												Balance				Recognized
December 31, 2013
Impaired loans with a related allowance:
Commercial	$	7,901			$	7,901			$	2,817		$	5,343			$	38
Commercial real estate	9,164				8,909				818			7,686				282
Total commercial and commercial real estate	17,065				16,810				3,635			13,029				320
Agricultural and agricultural real estate	13,818				13,818				756			7,537				354
Residential real estate	2,460				2,460				605			3,179				13
Consumer	3,485				3,485				1,721			3,490				100
Total loans held to maturity	$	36,828			$	36,573			$	6,717		$	27,235			$	787
Impaired loans without a related allowance:
Commercial	$	7,724			$	6,743			$	—		$	9,394			$	89
Commercial real estate	24,830				19,390				—			25,676				538
Total commercial and commercial real estate	32,554				26,133				—			35,070				627
Agricultural and agricultural real estate	2,849				2,849				—			9,985				189
Residential real estate	5,345				4,754				—			4,198				80
Consumer	1,652				1,652				—			1,515				37
Total loans held to maturity	$	42,400			$	35,388			$	—		$	50,768			$	933
Total impaired loans held to maturity:
Commercial	$	15,625			$	14,644			$	2,817		$	14,737			$	127
Commercial real estate	33,994				28,299				818			33,362				820
Total commercial and commercial real estate	49,619				42,943				3,635			48,099				947
Agricultural and agricultural real estate	16,667				16,667				756			17,522				543
Residential real estate	7,805				7,214				605			7,377				93
Consumer	5,137				5,137				1,721			5,005				137
Total impaired loans held to maturity	$	79,228			$	71,961			$	6,717		$	78,003			$	1,720
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 acquired loans and other real estate owned are covered by two loss share agreements between the FDIC and Galena State Bank & Trust Co., which affords Galena State Bank & Trust Co. significant loss protection. Under the loss share agreements, the FDIC covers 80% of the covered loan and other real estate owned losses (referred to as covered assets) up to $10 million and 95% of losses in excess of that amount. The term for loss sharing on non-residential real estate losses is five years with respect to losses and eight years with respect to recoveries, while the term for loss sharing on residential real estate loans is ten years with respect to losses and recoveries. The reimbursable losses from the FDIC are based on the book value of the relevant loan as determined by the FDIC at the date of the transaction. New loans made after the acquisition are not covered by the loss share agreements.
The Elizabeth State Bank 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 Elizabeth State Bank 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 covered by these loss share agreements at March 31, 2014, and December 31, 2013, consisted of purchased impaired and nonimpaired loans as summarized in the following table, in thousands:
	March 31, 2014											December 31, 2013
	Impaired				Non				Total			Impaired				Non				Total
	Purchased				Impaired				Covered			Purchased				Impaired				Covered
	Loans				Purchased				Loans			Loans				Purchased				Loans
					Loans											Loans
Commercial and commercial real estate	$	565			$	1,727			$	2,292		$	549			$	1,765			$	2,314
Agricultural and agricultural real estate	—				502				502			—				543				543
Residential real estate	—				2,062				2,062			—				2,280				2,280
Consumer loans	574				36				610			538				74				612
Total Covered Loans	$	1,139			$	4,327			$	5,466		$	1,087			$	4,662			$	5,749
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 $13.8 million and the estimated fair value of the loans was $9.0 million. At March 31, 2014, and December 31, 2013, 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. There was no allowance for loan and lease losses related to these ASC 310-30 loans at March 31, 2014, and December 31, 2013.
On the acquisition date, the preliminary estimate of the contractually required payments receivable for all nonimpaired loans acquired in the acquisition was $28.9 million and the estimated fair value of the loans was $28.7 million.

Allowance_for_Loan_and_Lease_L

Allowance for Loan and Lease Losses	3 Months Ended
	Mar. 31, 2014
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 three months ended March 31, 2014, and March 31, 2013, were as follows, in thousands:
		Commercial			Commercial			Agricultural			Residential			Consumer			Unallocated		Total
					Real Estate						Real Estate
	Balance at December 31, 2013	$	13,099		$	14,152		$	2,992		$	3,720		$	7,722		$	—	$	41,685
	Charge-offs	(6,917		)	(923		)	(1,511		)	(149		)	(1,158		)	—		(10,658		)
	Recoveries	199			780			2			26			208			—		1,215
	Provision	5,252			(999		)	1,088			74			604			312		6,331
	Balance at March 31, 2014	$	11,633		$	13,010		$	2,571		$	3,671		$	7,376		$	312	$	38,573
		Commercial			Commercial			Agricultural			Residential			Consumer			Unallocated		Total
					Real Estate						Real Estate
	Balance at December 31, 2012	$	11,388		$	14,473		$	2,138		$	3,543		$	7,173		$	—	$	38,715
	Charge-offs	(538		)	(1,243		)	(23		)	(265		)	(995		)	—		(3,064		)
	Recoveries	781			186			12			7			254			—		1,240
	Provision	(2,332		)	1,774			68			(19		)	1,146			—		637
	Balance at March 31, 2013	$	9,299		$	15,190		$	2,195		$	3,266		$	7,578		$	—	$	37,528
	Management allocates the allowance for loan and leases 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	3 Months Ended
	Mar. 31, 2014
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 $35.6 million at both March 31, 2014, and December 31, 2013. Heartland conducts its annual internal assessment of the goodwill both collectively and at its subsidiaries as of September 30.
	Other intangible assets consist of core deposit intangibles, mortgage servicing rights and customer relationship intangible. The gross carrying amount of other intangible assets and the associated accumulated amortization at March 31, 2014, and December 31, 2013, are presented in the table below, in thousands:
		March 31, 2014								December 31, 2013
		Gross			Accumulated			Net		Gross		Accumulated		Net
		Carrying			Amortization			Carrying		Carrying		Amortization		Carrying
		Amount						Amount		Amount				Amount
	Amortizing intangible assets:
	Core deposit intangibles	$	21,069		$	10,959		$	10,110	$	21,069	$	10,345	$	10,724
	Mortgage servicing rights	33,134			10,990			22,144		32,160		10,372		21,788
	Customer relationship intangible	1,177			741			436		1,177		730		447
	Total	$	55,380		$	22,690		$	32,690	$	54,406	$	21,447	$	32,959
	The following table shows the estimated future amortization expense for amortizable intangible assets, in thousands:
		Core			Mortgage			Customer
		Deposit			Servicing			Relationship
		Intangibles			Rights			Intangible		Total
	Nine months ending December 31, 2014	$	1,566		$	3,237		$	32	$	4,835
	Year ending December 31,
	2015	1,780			4,727			42		6,549
	2016	1,575			4,052			41		5,668
	2017	1,393			3,376			40		4,809
	2018	1,232			2,701			39		3,972
	2019	1,056			2,026			38		3,120
	Thereafter	1,508			2,025			204		3,737
	Projections of amortization expense for mortgage servicing rights are based on existing asset balances and the existing interest rate environment as of March 31, 2014. Heartland's actual experience may be significantly different depending upon changes in mortgage interest rates and market conditions. Mortgage loans serviced for others were $3.11 billion and $3.05 billion as of March 31, 2014, and December 31, 2013, respectively. The fair value of Heartland's mortgage servicing rights was estimated at $32.0 million at both March 31, 2014, and December 31, 2013.
	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 March 31, 2014, and December 31, 2013, 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 10.05% and 9.65% for the March 31, 2014, and December 31, 2013, valuations, respectively. The discount rate was 9.66% and 10.15% for the March 31, 2014, and December 31, 2013, valuations, respectively. The average capitalization rate for the first three months of 2014 ranged from 0.83% to 1.16% compared to 0.79% and 1.39% for 2013. Fees collected for the servicing of mortgage loans for others were $2.1 million and $1.4 million for the three months ended March 31, 2014, and March 31, 2013, respectively.
	The following table summarizes, in thousands, the changes in capitalized mortgage servicing rights for the three month period ended March 31, 2014 and 2013:
		2014			2013
	Balance at January 1	$	21,788		$	15,653
	Originations	1,435			3,245
	Amortization	(1,079		)	(1,761		)
	Valuation adjustment	—			496
	Balance at March 31	$	22,144		$	17,633
	Fair value of mortgage servicing rights	$	32,032		$	19,389
	Mortgage servicing rights, net to servicing portfolio	0.71		%	0.58		%

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2014
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 and 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, and forward sales of mortgage securities. 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 large, stable financial institutions. 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 $4.0 million and $5.4 million of cash as collateral at March 31, 2014, and December 31, 2013, respectively. Heartland's counterparties were required to pledge $0 and $540,000 at March 31, 2014, and December 31, 2013, respectively.
	Heartland's derivative and hedging instruments are recorded at fair value on the consolidated balance sheets. See Note 7, “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 three months ended March 31, 2014, 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 (loss) to interest expense totaling $521,000. For the next twelve months, Heartland estimates that cash payments and reclassification from accumulated other comprehensive income (loss) to interest expense will total $2.1 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 during 2009 to effectively convert Heartland Financial Statutory Trust IV, V and VII, which are variable interest rate subordinated debentures, to fixed interest rate debt. During the first quarter of 2014, the interest rate swap transaction on Heartland Financial Statutory Trust IV expired. Prior to the expiration of the swap, Heartland entered into a new forward-starting interest rate swap to replace the expiring swap. In addition, Heartland added two new forward starting interest rate swap transactions to effectively convert Morrill Statutory Trust I and Morrill Statutory Trust II, which total $16.6 million, from variable interest rate subordinated debentures to fixed interest 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.
	The table below identifies the balance sheet category and fair values of Heartland's derivative instruments designated as cash flow hedges at March 31, 2014, and December 31, 2013, in thousands:
		Notional				Fair				Balance	Receive			Weighted		Maturity
		Amount				Value				Sheet	Rate			Average
										Category				Pay Rate
	March 31, 2014
	Interest rate swap	$	11,388			$	(406	)		Other Liabilities	2.91	%		5.14	%	4/20/16
	Interest rate swap	25,000				62				Other Assets	0.233	%		2.255	%	3/17/21
	Interest rate swap	20,000				(1,393		)		Other Liabilities	0.236	%		3.22	%	3/1/17
	Interest rate swap	20,000				(1,668		)		Other Liabilities	0.24	%		3.355	%	1/7/20
	Interest rate swap	10,000				45				Other Assets	0.235	%		1.674	%	3/26/19
	Interest rate swap	10,000				45				Other Assets	0.233	%		1.658	%	3/18/19
	December 31, 2013
	Interest rate swap	$	11,719			$	(457	)		Other Liabilities	2.917	%		5.14	%	4/20/16
	Interest rate swap	25,000				(146		)		Other Liabilities	0.244	%		2.58	%	3/17/14
	Interest rate swap	20,000				(1,507		)		Other Liabilities	0.239	%		3.22	%	3/1/17
	Interest rate swap	20,000				(1,587		)		Other Liabilities	0.243	%		3.355	%	1/7/20
	The table below identifies the gains and losses recognized on Heartland's derivative instruments designated as cash flow hedges for the three months ended March 31, 2014, and March 31, 2013, 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)
	March 31, 2014
	Interest rate swap	$	51			Interest Expense		$	(65	)	Other Income		$	—
	Interest rate swap	146				Interest Expense		(146		)	Other Income		—
	Interest rate swap	62				Interest Expense		—			Other Income		—
	Interest rate swap	114				Interest Expense		(151		)	Other Income		—
	Interest rate swap	(81		)		Interest Expense		(159		)	Other Income		—
	Interest rate swap	45				Interest Expense		—			Other Income		—
	Interest rate swap	45				Interest Expense		—			Other Income		—
	31-Mar-13
	Interest rate swap	$	66			Interest Expense		$	(71	)	Other Income		$	—
	Interest rate swap	143				Interest Expense		(142		)	Other Income		—
	Interest rate swap	131				Interest Expense		(142		)	Other Income		—
	Interest rate swap	247				Interest Expense		(150		)	Other Income		—
	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 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 March 31, 2014, and December 31, 2013, in thousands:
		Balance Sheet Category		Notional				Fair
				Amount				Value
	March 31, 2014
	Interest rate lock commitments (mortgage)	Other Assets		$	92,583			$	2,993
	Forward commitments	Other Assets		108,333				238
	Forward commitments	Other Liabilities		98,823				(307		)
	December 31, 2013
	Interest rate lock commitments (mortgage)	Other Assets		$	63,370			$	1,809
	Forward commitments	Other Assets		117,637				1,206
	Forward commitments	Other Liabilities		53,277				(133		)
	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 months ended March 31, 2014, and March 31, 2013, in thousands:
		Income Statement Category		Year-to-Date
				Gain (Loss) Recognized
	March 31, 2014
	Interest rate lock commitments (mortgage)	Gains on sale of loans held for sale		$	1,882
	Forward commitments	Gains on sale of loans held for sale		(1,142		)
	March 31, 2013
	Interest rate lock commitments (mortgage)	Gains on sale of loans held for sale		$	(3,161	)
	Forward commitments	Gains on sale of loans held for sale		372

Fair_Value

Fair Value	3 Months Ended
	Mar. 31, 2014
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 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. 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 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.
	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 March 31, 2014, and December 31, 2013, 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 March 31, 2014, and December 31, 2013, 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
	March 31, 2014
	Assets
	Trading securities	$	—		$	—		$	—	$	—
	Securities available for sale
	U.S. government corporations and agencies	146,696			2,555			144,141		—
	Mortgage-backed securities	1,049,621			—			1,045,291		4,330
	Obligations of states and political subdivisions	199,398			—			199,398		—
	Equity securities	5,041			—			5,041		—
	Derivative financial instruments	152			—			152		—
	Interest rate lock commitments	2,993			—			—		2,993
	Forward commitments	238			—			238		—
	Total assets at fair value	$	1,404,139		$	2,555		$	1,394,261	$	7,323
	Liabilities
	Derivative financial instruments	$	3,467		$	—		$	3,467	$	—
	Forward commitments	307			—			307		—
	Total liabilities at fair value	$	3,774		$	—		$	3,774	$	—
	December 31, 2013
	Assets
	Trading securities	$	1,801		$	1,801		$	—	$	—
	Securities available for sale
	U.S. government corporations and agencies	218,303			4,084			214,219		—
	Mortgage-backed securities	1,143,947			—			1,140,649		3,298
	Obligations of states and political subdivisions	266,624			—			266,624		—
	Equity securities	5,028			—			5,028		—
	Interest rate lock commitments	1,809			—			—		1,809
	Forward commitments	1,206			—			1,206		—
	Total assets at fair value	$	1,638,718		$	5,885		$	1,627,726	$	5,107
	Liabilities
	Derivative financial instruments	$	3,697		$	—		$	3,697	$	—
	Forward commitments	133			—			133		—
	Total liabilities at fair value	$	3,830		$	—		$	3,830	$	—
	As of March 31, 2014, Heartland revised the classification of interest rate lock commitments from previous filings. In previous filings, interest rate lock commitments were classified as Level 2 under ASC 820. The resulting change in presentation does not have a material impact on the financial statements and did not affect the method by which Heartland estimates fair value, nor the resulting fair values.
	The tables below present Heartland's assets that are measured at fair value on a nonrecurring basis, in thousands:
	Fair Value Measurements at March 31, 2014
	Total			Quoted Prices in			Significant Other		Significant		Losses
				Active Markets for			Observable		Unobservable
				Identical Assets			Inputs		Inputs
				(Level 1)			(Level 2)		(Level 3)
Collateral dependent impaired loans:
Commercial	$	440		$	—		$	—	$	440	$	153
Commercial real estate	6,585			—			—		6,585		583
Agricultural and agricultural real estate	4,926			—			—		4,926		1,510
Residential real estate	2,764			—			—		2,764		—
Consumer	2,613			—			—		2,613		—
Total collateral dependent impaired loans	$	17,328		$	—		$	—	$	17,328	$	2,246
Other real estate owned	$	28,083		$	—		$	—	$	28,083	$	123
	Fair Value Measurements at December 31, 2013
	Total			Quoted Prices in			Significant Other		Significant		Losses
				Active Markets for			Observable		Unobservable
				Identical Assets			Inputs		Inputs
				(Level 1)			(Level 2)		(Level 3)
Collateral dependent impaired loans:
Commercial	$	7,229		$	—		$	—	$	7,229	$	919
Commercial real estate	7,749			—			—		7,749		1,881
Agricultural and agricultural real estate	13,062			—			—		13,062		—
Residential real estate	3,396			—			—		3,396		—
Consumer	1,763			—			—		1,763		—
Total collateral dependent impaired loans	$	33,199		$	—		$	—	$	33,199	$	2,800
Other real estate owned	$	29,852		$	—		$	—	$	29,852	$	2,799
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:
	Quantitative Information About Level 3 Fair Value Measurements
	Fair Value			Valuation		Unobservable	Range
	at 3/31/14			Technique		Input	(Weighted Average)
Z-TRANCHE Securities	$	4,330		Discounted cash flows		Pretax discount rate	7.00 - 8.50%
						Actual defaults	12.71-20.14% (15.52%)
						Actual deferrals	6.25-22.35% (11.32%)
Interest rate lock commitments	2,993			Discounted cash flows		Closing ratio	(1)
Collateral dependent impaired loans:
Commercial	440			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Commercial real estate	6,585			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Agricultural and agricultural real estate	4,926			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Residential real estate	2,764			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Consumer	2,613			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Other real estate owned	28,083			Modified appraised value		Third party appraisal	(2)
						Appraisal discount
(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 closing ratio at March 31, 2014 was 85%.
(2) 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.
	Quantitative Information About Level 3 Fair Value Measurements
	Fair Value			Valuation		Unobservable	Range
	at 12/31/13			Technique		Input	(Weighted Average)
Z-TRANCHE Securities	$	3,298		Discounted cash flows		Pretax discount rate	7.00 - 9.00%
						Actual defaults	12.50-28.20% (20.80%)
						Actual deferrals	6.10-16.00% (11.10%)
Interest rate lock commitments	1,809			Discounted cash flows		Closing ratio	(1)
Collateral dependent impaired loans:
Commercial	7,229			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Commercial real estate	7,749			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Agricultural and agricultural real estate	13,062			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Residential real estate	3,396			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Consumer	1,763			Modified appraised value		Third party appraisal	(2)
						Appraisal discount	(2)
Other real estate owned	29,852			Modified appraised value		Third party appraisal	(2)
						Appraisal discount
(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 closing ratio at December 31, 2013 was 87%.
(2) 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 is summarized in the following table, in thousands:
	For the Three Months Ended			For the Year Ended
	March 31, 2014			December 31, 2013
Balance at January 1,	$	3,298		$	4,089
Total gains (losses):
Included in earnings	—			(1,587		)
Included in other comprehensive income	1,062			826
Purchases, issuances, sales and settlements:
Purchases	—			—
Sales	(30		)	(30		)
Settlements	—			—
Balance at period end	$	4,330		$	3,298
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 Three Months Ended			For the Year Ended
	31-Mar-14			31-Dec-13
Balance at January 1,	$	1,809		$	9,353
Total gains (losses) included in earnings	1,882			(10,518		)
Settlements	(698		)	2,974
Balance at period end	$	2,993		$	1,809
For the three months ended March 31, 2014, $3.0 million of gains are included in gains (losses) on sales of loans held for sale attributable to interest rate lock commitments held at March 31, 2014. For the year ended December 31, 2013, $1.8 million of losses are included in gains (losses) of loans held for sale attributable to interest rate lock commitments held at December 31, 2013.
The tables below summarize the estimated fair value of Heartland's financial instruments as defined by ASC 825 as of March 31, 2014, and December 31, 2013, 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
							31-Mar-14
	Carrying			Estimated			Quoted Prices in		Significant Other		Significant
	Amount			Fair			Active Markets for		Observable		Unobservable
				Value			Identical Assets		Inputs		Inputs
							(Level 1)		(Level 2)		(Level 3)
Financial assets:
Cash and cash equivalents	$	88,628		$	88,628		$	88,628	$	—	$	—
Time deposits in other financial institutions	3,355			3,355			3,355		—		—
Securities:
Trading	—			—			—		—		—
Available for sale	1,400,756			1,400,756			2,555		1,393,871		4,330
Held to maturity	257,927			263,169			—		263,169		—
Other investments	18,755			18,755			—		18,520		235
Loans held for sale	54,862			54,862			—		54,862		—
Loans, net:
Commercial	974,144			963,353			—		962,913		440
Commercial real estate	1,548,517			1,548,106			—		1,541,521		6,585
Agricultural and agricultural real estate	368,168			369,517			—		364,591		4,926
Residential real estate	362,769			351,492			—		348,728		2,764
Consumer	291,071			288,898			—		286,285		2,613
Total Loans, net	3,544,669			3,521,366			—		3,504,038		17,328
Derivative financial instruments	152			152			—		152		—
Interest rate lock commitments	2,993			2,993			—		—		2,993
Forward commitments	238			238			—		238		—
Financial liabilities:
Deposits
Demand deposits	1,195,457			1,195,457			—		1,195,457		—
Savings deposits	2,582,166			2,582,166			—		2,582,166		—
Time deposits	885,741			885,741			—		885,741		—
Short term borrowings	256,250			256,250			—		256,250		—
Other borrowings	334,916			339,930			—		339,930		—
Derivative financial instruments	3,467			3,467			—		3,467		—
Forward commitments	307			307			—		307		—
							Fair Value Measurements at
							31-Dec-13
	Carrying			Estimated			Quoted Prices in		Significant Other		Significant
	Amount			Fair			Active Markets for		Observable		Unobservable
				Value			Identical Assets		Inputs		Inputs
							(Level 1)		(Level 2)		(Level 3)
Financial assets:
Cash and cash equivalents	$	125,270		$	125,270		$	125,270	$	—	$	—
Securities:
Trading	1,801			1,801			1,801		—		—
Available for sale	1,633,902			1,633,902			4,084		1,626,520		3,298
Held to maturity	237,498			237,437			—		237,437		—
Other investments	21,843			21,843			—		21,608		235
Loans held for sale	46,665			46,665			—		46,665		—
Loans, net:
Commercial	936,305			930,501			—		923,272		7,229
Commercial real estate	1,516,352			1,512,773			—		1,505,024		7,749
Agricultural and agricultural real estate	374,203			378,086			—		365,024		13,062
Residential real estate	347,266			335,362			—		331,966		3,396
Consumer	286,890			273,139			—		271,376		1,763
Total Loans, net	3,461,016			3,429,861			—		3,396,662		33,199
Derivative financial instruments	—			—			—		—		—
Interest rate lock commitments	1,809			1,809			—		—		1,809
Forward commitments	1,206			1,206			—		1,206		—
Financial liabilities:
Deposits
Demand deposits	1,238,581			1,238,581			—		1,238,581		—
Savings deposits	2,535,242			2,535,242			—		2,535,242		—
Time deposits	892,676			892,676			—		892,676		—
Short term borrowings	408,756			408,756			—		408,756		—
Other borrowings	350,109			355,923			—		355,923		—
Derivative financial instruments	3,697			3,697			—		3,697		—
Forward commitments	133			133			—		133		—
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	3 Months Ended
	Mar. 31, 2014
Mortgage Banking [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-month period ended March 31, 2014, and 2013, in thousands.
		Three Months Ended
		March 31,
		2014							2013
		Community		Retail			Total		Community		Retail		Total
		and Other		Mortgage					and Other		Mortgage
		Banking		Banking					Banking		Banking
	Net interest income	$	47,855	$	757		$	48,612	$	38,324	$	343	$	38,667
	Provision for loan losses	6,331		—			6,331		637		—		637
	Total noninterest income	11,403		7,324			18,727		12,891		13,075		25,966
	Total noninterest expense	42,214		10,201			52,415		34,018		12,227		46,245
	Income (loss) before taxes	$	10,713	$	(2,120	)	$	8,593	$	16,560	$	1,191	$	17,751
	Segment Assets	$	5,669,512	$	77,590		$	5,747,102	$	4,787,006	$	113,552	$	4,900,558
	Average Loans	$	3,528,356	$	42,771		$	3,571,127	$	2,784,785	$	92,175	$	2,876,960

Basis_of_Presentation_Policies

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Effect of New Financial Accounting Standards	'
	Effect of New Financial Accounting Standards
	In July 2013, the FASB issued ASU No. 2013-11, "Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists," to eliminate the diversity in practice and to increase the comparability of financial statements among companies. The guidance requires that a reporting entity generally must show an unrecognized tax benefit, or a portion of an unrecognized tax benefit, for a net operating loss carryforward, similar tax loss or a tax credit carryforward as a reduction of a deferred tax asset. However, the entity should present the unrecognized tax benefit as a liability and not as a reduction of a deferred tax asset if the carryforward or tax loss is not available on the financial statement date to settle any additional income tax liability that would result from the disallowance of the tax position under the applicable tax law, or the applicable tax law does not require the company to use, and the company does not intend to use, the carryforward or tax loss to settle additional income taxes resulting from the disallowance of the tax position. The guidance does not require any new recurring disclosures because it does not affect the recognition or measurement of uncertain tax positions. Heartland adopted this standard on January 1, 2014, 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 2014-01, "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 benefits 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. Early adoption is permitted. Heartland is in the process of evaluating the impact that adoption of this guidance will have 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 does not expect the adoption of this standard to have a material impact on the results of operations, financial position, and liquidity.

Basis_of_Presentation_Tables

Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2014
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 three-month periods ended March 31, 2014 and 2013, are shown in the table below:
		Three Months Ended
		March 31,
	(Dollars and number of shares in thousands, except per share data)	2014				2013
	Net income attributable to Heartland	$	6,890			$	12,488
	Preferred dividends and discount	(204		)		(408		)
	Net income available to common stockholders	$	6,686			$	12,080
	Weighted average common shares outstanding for basic earnings per share	18,437				16,852
	Assumed incremental common shares issued for common stock equivalents	288				335
	Weighted average common shares for diluted earnings per share	18,725				17,187
	Earnings per common share — basic	$	0.36			$	0.72
	Earnings per common share — diluted	$	0.36			$	0.7
	Number of antidilutive common stock equivalents excluded from diluted earnings per share computation	95				105
Summary of RSUs	'
	A summary of the status of the RSUs as of March 31, 2014 and 2013, and changes during the three months ended March 31, 2014 and 2013, follows:
		2014							2013
		Shares			Weighted-Average Grant Date				Shares		Weighted-Average Grant Date
					Fair Value						Fair Value
	Outstanding at January 1	353,070			$	18.48			348,897		$	15.75
	Granted	108,710			27.29				113,585		26.86
	Vested	(67,024	)		15.82				(30,288	)	13.95
	Forfeited	(2,003	)		17.26				(170	)	20.64
	Outstanding at March 31	392,753			$	21.5			432,024		$	19.06
Schedule of Status of Stock Options	'
	A summary of the status of the stock options as of March 31, 2014 and 2013, and changes during the three months ended March 31, 2014 and 2013, follows:
		2014							2013
		Shares			Weighted-Average				Shares		Weighted-Average
					Exercise Price						Exercise Price
	Outstanding at January 1	261,936			$	23.6			377,907		$	22.62
	Granted	—			—				—		—
	Exercised	(5,000	)		19.13				(9,835	)	16.69
	Forfeited	(5,500	)		26.88				(1,800	)	26.68
	Outstanding at March 31	251,436			$	23.62			366,272		$	22.76
	Options exercisable at March 31	251,436			$	23.62			366,272		$	22.76

Securities_Tables

Securities (Tables)	3 Months Ended
	Mar. 31, 2014
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 March 31, 2014, and December 31, 2013, are summarized in the table below, in thousands:
		Amortized			Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair
					Gains			Losses			Value
	March 31, 2014
	U.S. government corporations and agencies	$	147,350		$	115		$	(769	)	$	146,696
	Mortgage-backed securities	1,052,695			10,035			(13,109		)	1,049,621
	Obligations of states and political subdivisions	200,766			2,423			(3,791		)	199,398
	Total debt securities	1,400,811			12,573			(17,669		)	1,395,715
	Equity securities	5,005			36			—			5,041
	Total	$	1,405,816		$	12,609		$	(17,669	)	$	1,400,756
	December 31, 2013
	U.S. government corporations and agencies	$	220,157		$	147		$	(2,001	)	$	218,303
	Mortgage-backed securities	1,156,983			9,538			(22,574		)	1,143,947
	Obligations of states and political subdivisions	277,320			1,706			(12,402		)	266,624
	Total debt securities	1,654,460			11,391			(36,977		)	1,628,874
	Equity securities	4,996			32			—			5,028
	Total	$	1,659,456		$	11,423		$	(36,977	)	$	1,633,902
Held-to-maturity Securities	'
	The amortized cost, gross unrealized gains and losses and estimated fair values of held to maturity securities as of March 31, 2014, and December 31, 2013, are summarized in the table below, in thousands:
		Amortized			Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair
					Gains			Losses			Value
	March 31, 2014
	Mortgage-backed securities	$	5,933		$	245		$	(372	)	$	5,806
	Obligations of states and political subdivisions	251,994			8,416			(3,047		)	257,363
	Total	$	257,927		$	8,661		$	(3,419	)	$	263,169
	December 31, 2013
	Mortgage-backed securities	$	5,973		$	199		$	(321	)	$	5,851
	Obligations of states and political subdivisions	231,525			5,801			(5,740		)	231,586
	Total	$	237,498		$	6,000		$	(6,061	)	$	237,437
Investments Classified by Contractual Maturity Date	'
	The amortized cost and estimated fair value of debt securities available for sale at March 31, 2014, 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	$	8,858		$	8,977
	Due in 1 to 5 years	94,678			94,865
	Due in 5 to 10 years	83,887			82,963
	Due after 10 years	160,693			159,289
	Total debt securities	348,116			346,094
	Mortgage-backed securities	1,052,695			1,049,621
	Equity securities	5,005			5,041
	Total investment securities	$	1,405,816		$	1,400,756
	The amortized cost and estimated fair value of debt securities held to maturity at March 31, 2014, 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	$	—		$	—
	Due in 1 to 5 years	12,588			13,416
	Due in 5 to 10 years	42,216			43,656
	Due after 10 years	197,190			200,291
	Total debt securities	251,994			257,363
	Mortgage-backed securities	5,933			5,806
	Total investment securities	$	257,927		$	263,169
Schedule of Realized Gain (Loss)	'
	Gross gains and losses realized related to the sales of securities available for sale for the three month periods ended March 31, 2014, and 2013, are summarized as follows, in thousands:
		Three Months Ended
		March 31,
		2014			2013
	Proceeds from sales	$	355,288		$	91,840
	Gross security gains	2,472			3,622
	Gross security losses	1,691			195
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 March 31, 2014, and December 31, 2013. 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 was March 31, 2013, and December 31, 2012, 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			Fair Value			Unrealized			Fair Value		Unrealized
					Losses						Losses					Losses
	March 31, 2014
	U.S. government corporations and agencies	$	130,411		$	(769	)	$	—		$	—		$	130,411	$	(769	)
	Mortgage-backed securities	506,526			(8,413		)	132,248			(4,696		)	638,774		(13,109		)
	Obligations of states and political subdivisions	89,022			(2,414		)	26,568			(1,377		)	115,590		(3,791		)
	Total temporarily impaired securities	$	725,959		$	(11,596	)	$	158,816		$	(6,073	)	$	884,775	$	(17,669	)
	December 31, 2013
	U.S. government corporations and agencies	$	196,345		$	(2,001	)	$	—		$	—		$	196,345	$	(2,001	)
	Mortgage-backed securities	640,684			(17,064		)	118,229			(5,510		)	758,913		(22,574		)
	Obligations of states and political subdivisions	196,987			(11,452		)	10,714			(950		)	207,701		(12,402		)
	Total temporarily impaired securities	$	1,034,016		$	(30,517	)	$	128,943		$	(6,460	)	$	1,162,959	$	(36,977	)
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			Fair Value			Unrealized			Fair Value		Unrealized
					Losses						Losses					Losses
	March 31, 2014
	Mortgage-backed securities	$	2,163		$	(372	)	$	—		$	—		$	2,163	$	(372	)
	Obligations of states and political subdivisions	32,364			(769		)	33,131			(2,278		)	65,495		(3,047		)
	Total temporarily impaired securities	$	34,527		$	(1,141	)	$	33,131		$	(2,278	)	$	67,658	$	(3,419	)
	December 31, 2013
	Mortgage-backed securities	$	2,170		$	(319	)	$	834		$	(2	)	$	3,004	$	(321	)
	Obligations of states and political subdivisions	47,175			(3,508		)	21,505			(2,232		)	68,680		(5,740		)
	Total temporarily impaired securities	$	49,345		$	(3,827	)	$	22,339		$	(2,234	)	$	71,684	$	(6,061	)
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
		March 31,
		2014			2013
	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		)
	Total changes to AOCI for non-credit related impairment	(24		)	(24		)
	Total OTTI losses (accretion) recorded on debt securities, net	$	(24	)	$	(24	)

Loans_and_Leases_Tables

Loans and Leases (Tables)	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Loans and Leases	'
	Loans and leases as of March 31, 2014, and December 31, 2013, were as follows, in thousands:
		March 31, 2014				December 31, 2013
	Loans and leases receivable held to maturity:
	Commercial	$	986,713			$	950,197
	Commercial real estate	1,560,912				1,529,683
	Agricultural and agricultural real estate	370,348				376,735
	Residential real estate	365,162				349,349
	Consumer	297,978				294,145
	Gross loans and leases receivable held to maturity	3,581,113				3,500,109
	Unearned discount	(136		)		(168		)
	Deferred loan fees	(3,201		)		(2,989		)
	Total net loans and leases receivable held to maturity	3,577,776				3,496,952
	Loans covered under loss share agreements:
	Commercial and commercial real estate	2,292				2,314
	Agricultural and agricultural real estate	502				543
	Residential real estate	2,062				2,280
	Consumer	610				612
	Total loans covered under loss share agreements	5,466				5,749
	Allowance for loan and lease losses	(38,573		)		(41,685		)
	Loans and leases receivable, net	$	3,544,669			$	3,461,016
Allowance for Loan and Lease Losses, Based on Impairment Methodology	'
	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 2014.
		Allowance For Loan and Lease Losses											Gross Loans and Leases Receivable Held to Maturity
		Ending Balance				Ending Balance				Total			Ending Balance Evaluated for Impairment Under ASC				Ending Balance Evaluated for Impairment Under ASC				Total
		Under ASC				Under ASC							310-10-35				450-20
		310-10-35				450-20
	March 31, 2014
	Commercial	$	603			$	11,030			$	11,633		$	8,172			$	978,541			$	986,713
	Commercial real estate	365				12,645				13,010			27,403				1,533,509				1,560,912
	Agricultural and agricultural real estate	15				2,556				2,571			9,006				361,342				370,348
	Residential real estate	538				3,133				3,671			7,668				357,494				365,162
	Consumer	1,745				5,631				7,376			6,175				291,803				297,978
	Unallocated	—				312				312			—				—				—
	Total	$	3,266			$	35,307			$	38,573		$	58,424			$	3,522,689			$	3,581,113
	December 31, 2013
	Commercial	$	2,817			$	10,282			$	13,099		$	14,644			$	935,553			$	950,197
	Commercial real estate	818				13,334				14,152			28,299				1,501,384				1,529,683
	Agricultural and agricultural real estate	756				2,236				2,992			16,667				360,068				376,735
	Residential real estate	605				3,115				3,720			7,214				342,135				349,349
	Consumer	1,721				6,001				7,722			5,137				289,008				294,145
	Unallocated	—				—				—			—				—				—
	Total	$	6,717			$	34,968			$	41,685		$	71,961			$	3,428,148			$	3,500,109
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 March 31, 2014, and December 31, 2013, in thousands. There were no nonaccrual leases, accruing leases past due 90 days or more or restructured leases at March 31, 2014, and December 31, 2013.
		March 31, 2014				31-Dec-13
	Nonaccrual loans	$	26,630			$	29,313
	Nonaccrual troubled debt restructured loans	5,298				13,081
	Total nonaccrual loans	$	31,928			$	42,394
	Accruing loans past due 90 days or more	$	—			$	24
	Performing troubled debt restructured loans	$	12,548			$	19,353
Troubled Debt Restructurings on Financing Receivables	'
	The following tables provide information on troubled debt restructured loans that were modified during the three months ended March 31, 2014, and March 31, 2013, dollars in thousands:
		Three Months Ended
		March 31,
		2014										2013
		Number			Pre-				Post-			Number			Pre-				Post-
		of Loans			Modification				Modification			of Loans			Modification				Modification
					Recorded				Recorded						Recorded				Recorded
					Investment				Investment						Investment				Investment
	Commercial	—			$	—			$	—		2			$	4,670			$	4,670
	Commercial real estate	1			368				368			—			—				—
	Total commercial and commercial real estate	1			368				368			2			4,670				4,670
	Agricultural and agricultural real estate	—			—				—			3			2,576				2,576
	Residential real estate	—			—				—			2			646				646
	Consumer	—			—				—			—			—				—
	Total	1			$	368			$	368		7			$	7,892			$	7,892
Financing Receivable Credit Quality Indicators	'
	The following table presents loans and leases not covered by loss share agreements by credit quality indicator at March 31, 2014, and December 31, 2013, in thousands:
		Pass				Nonpass				Total
	March 31, 2014
	Commercial	$	896,019			$	90,694			$	986,713
	Commercial real estate	1,401,965				158,947				1,560,912
	Total commercial and commercial real estate	2,297,984				249,641				2,547,625
	Agricultural and agricultural real estate	330,764				39,584				370,348
	Residential real estate	340,936				24,226				365,162
	Consumer	288,653				9,325				297,978
	Total gross loans and leases receivable held to maturity	$	3,258,337			$	322,776			$	3,581,113
	December 31, 2013
	Commercial	$	871,825			$	78,372			$	950,197
	Commercial real estate	1,390,820				138,863				1,529,683
	Total commercial and commercial real estate	2,262,645				217,235				2,479,880
	Agricultural and agricultural real estate	335,821				40,914				376,735
	Residential real estate	333,161				16,188				349,349
	Consumer	284,148				9,997				294,145
	Total gross loans and leases receivable held to maturity	$	3,215,775			$	284,334			$	3,500,109
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 March 31, 2014, and December 31, 2013, in thousands:
		Accruing Loans and Leases
		30-59 Days				60-89 Days				90 Days			Total				Current				Nonaccrual		Total Loans and Leases
		Past Due				Past Due				or More			Past Due
										Past Due
	March 31, 2014
	Commercial	$	657			$	919			$	—		$	1,576			$	978,621			$	6,516	$	986,713
	Commercial real estate	3,363				1,349				—			4,712				1,543,649				12,551		1,560,912
	Total commercial and commercial real estate	4,020				2,268				—			6,288				2,522,270				19,067		2,547,625
	Agricultural and agricultural real estate	417				82				—			499				364,791				5,058		370,348
	Residential real estate	1,580				—				—			1,580				358,051				5,531		365,162
	Consumer	2,178				566				—			2,744				292,962				2,272		297,978
	Total gross loans and leases receivable held to maturity	$	8,195			$	2,916			$	—		$	11,111			$	3,538,074			$	31,928	$	3,581,113
	December 31, 2013
	Commercial	$	697			$	741			$	—		$	1,438			$	935,508			$	13,251	$	950,197
	Commercial real estate	3,042				199				24			3,265				1,511,618				14,800		1,529,683
	Total commercial and commercial real estate	3,739				940				24			4,703				2,447,126				28,051		2,479,880
	Agricultural and agricultural real estate	818				—				—			818				369,907				6,010		376,735
	Residential real estate	1,199				56				—			1,255				342,735				5,359		349,349
	Consumer	2,624				1,089				—			3,713				287,458				2,974		294,145
	Total gross loans and leases receivable held to maturity	$	8,380			$	2,085			$	24		$	10,489			$	3,447,226			$	42,394	$	3,500,109
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 March 31, 2014, and December 31, 2013; the outstanding loan balance recorded on the consolidated balance sheets at March 31, 2014, and December 31, 2013; any related allowance recorded for those loans as of March 31, 2014, and December 31, 2013; the average outstanding loan balance recorded on the consolidated balance sheets during the three months ended March 31, 2014, and year ended December 31, 2013; and the interest income recognized on the impaired loans during the three months ended March 31, 2014, and year ended December 31, 2013, in thousands:
		Unpaid				Loan				Related			Year-to-				Year-to-
		Contractual				Balance				Allowance			Date				Date
		Balance								Recorded			Avg.				Interest
													Loan				Income
													Balance				Recognized
	March 31, 2014
	Impaired loans with a related allowance:
	Commercial	$	5,063			$	4,987			$	603		$	7,690			$	5
	Commercial real estate	906				887				365			3,971				8
	Total commercial and commercial real estate	5,969				5,874				968			11,661				13
	Agricultural and agricultural real estate	472				472				15			7,070				2
	Residential real estate	1,875				1,875				538			2,286				4
	Consumer	4,358				4,358				1,745			4,451				30
	Total loans held to maturity	$	12,674			$	12,579			$	3,266		$	25,468			$	49
	Impaired loans without a related allowance:
	Commercial	$	3,879			$	3,185			$	—		$	5,368			$	20
	Commercial real estate	32,538				26,516				—			22,806				272
	Total commercial and commercial real estate	36,417				29,701				—			28,174				292
	Agricultural and agricultural real estate	10,044				8,534				—			5,224				30
	Residential real estate	6,309				5,793				—			4,729				50
	Consumer	1,818				1,817				—			1,650				15
	Total loans held to maturity	$	54,588			$	45,845			$	—		$	39,777			$	387
	Total impaired loans held to maturity:
	Commercial	$	8,942			$	8,172			$	603		$	13,058			$	25
	Commercial real estate	33,444				27,403				365			26,777				280
	Total commercial and commercial real estate	42,386				35,575				968			39,835				305
	Agricultural and agricultural real estate	10,516				9,006				15			12,294				32
	Residential real estate	8,184				7,668				538			7,015				54
	Consumer	6,176				6,175				1,745			6,101				45
	Total impaired loans held to maturity	$	67,262			$	58,424			$	3,266		$	65,245			$	436
		Unpaid				Loan				Related			Year-to-				Year-to-
		Contractual				Balance				Allowance			Date				Date
		Balance								Recorded			Avg.				Interest
													Loan				Income
													Balance				Recognized
	December 31, 2013
	Impaired loans with a related allowance:
	Commercial	$	7,901			$	7,901			$	2,817		$	5,343			$	38
	Commercial real estate	9,164				8,909				818			7,686				282
	Total commercial and commercial real estate	17,065				16,810				3,635			13,029				320
	Agricultural and agricultural real estate	13,818				13,818				756			7,537				354
	Residential real estate	2,460				2,460				605			3,179				13
	Consumer	3,485				3,485				1,721			3,490				100
	Total loans held to maturity	$	36,828			$	36,573			$	6,717		$	27,235			$	787
	Impaired loans without a related allowance:
	Commercial	$	7,724			$	6,743			$	—		$	9,394			$	89
	Commercial real estate	24,830				19,390				—			25,676				538
	Total commercial and commercial real estate	32,554				26,133				—			35,070				627
	Agricultural and agricultural real estate	2,849				2,849				—			9,985				189
	Residential real estate	5,345				4,754				—			4,198				80
	Consumer	1,652				1,652				—			1,515				37
	Total loans held to maturity	$	42,400			$	35,388			$	—		$	50,768			$	933
	Total impaired loans held to maturity:
	Commercial	$	15,625			$	14,644			$	2,817		$	14,737			$	127
	Commercial real estate	33,994				28,299				818			33,362				820
	Total commercial and commercial real estate	49,619				42,943				3,635			48,099				947
	Agricultural and agricultural real estate	16,667				16,667				756			17,522				543
	Residential real estate	7,805				7,214				605			7,377				93
	Consumer	5,137				5,137				1,721			5,005				137
	Total impaired loans held to maturity	$	79,228			$	71,961			$	6,717		$	78,003			$	1,720
Impaired Financing Receivables	'
	The carrying amount of the loans covered by these loss share agreements at March 31, 2014, and December 31, 2013, consisted of purchased impaired and nonimpaired loans as summarized in the following table, in thousands:
		March 31, 2014											December 31, 2013
		Impaired				Non				Total			Impaired				Non				Total
		Purchased				Impaired				Covered			Purchased				Impaired				Covered
		Loans				Purchased				Loans			Loans				Purchased				Loans
						Loans											Loans
	Commercial and commercial real estate	$	565			$	1,727			$	2,292		$	549			$	1,765			$	2,314
	Agricultural and agricultural real estate	—				502				502			—				543				543
	Residential real estate	—				2,062				2,062			—				2,280				2,280
	Consumer loans	574				36				610			538				74				612
	Total Covered Loans	$	1,139			$	4,327			$	5,466		$	1,087			$	4,662			$	5,749

Allowance_for_Loan_and_Lease_L1

Allowance for Loan and Lease Losses (Tables)	3 Months Ended
	Mar. 31, 2014
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 three months ended March 31, 2014, and March 31, 2013, were as follows, in thousands:
		Commercial			Commercial			Agricultural			Residential			Consumer			Unallocated		Total
					Real Estate						Real Estate
	Balance at December 31, 2013	$	13,099		$	14,152		$	2,992		$	3,720		$	7,722		$	—	$	41,685
	Charge-offs	(6,917		)	(923		)	(1,511		)	(149		)	(1,158		)	—		(10,658		)
	Recoveries	199			780			2			26			208			—		1,215
	Provision	5,252			(999		)	1,088			74			604			312		6,331
	Balance at March 31, 2014	$	11,633		$	13,010		$	2,571		$	3,671		$	7,376		$	312	$	38,573
		Commercial			Commercial			Agricultural			Residential			Consumer			Unallocated		Total
					Real Estate						Real Estate
	Balance at December 31, 2012	$	11,388		$	14,473		$	2,138		$	3,543		$	7,173		$	—	$	38,715
	Charge-offs	(538		)	(1,243		)	(23		)	(265		)	(995		)	—		(3,064		)
	Recoveries	781			186			12			7			254			—		1,240
	Provision	(2,332		)	1,774			68			(19		)	1,146			—		637
	Balance at March 31, 2013	$	9,299		$	15,190		$	2,195		$	3,266		$	7,578		$	—	$	37,528
	Management allocates the allowance for loan and leases 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_1

Goodwill, Core Deposit Premium and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2014
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 March 31, 2014, and December 31, 2013, are presented in the table below, in thousands:
		March 31, 2014								December 31, 2013
		Gross			Accumulated			Net		Gross		Accumulated		Net
		Carrying			Amortization			Carrying		Carrying		Amortization		Carrying
		Amount						Amount		Amount				Amount
	Amortizing intangible assets:
	Core deposit intangibles	$	21,069		$	10,959		$	10,110	$	21,069	$	10,345	$	10,724
	Mortgage servicing rights	33,134			10,990			22,144		32,160		10,372		21,788
	Customer relationship intangible	1,177			741			436		1,177		730		447
	Total	$	55,380		$	22,690		$	32,690	$	54,406	$	21,447	$	32,959
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			Mortgage			Customer
		Deposit			Servicing			Relationship
		Intangibles			Rights			Intangible		Total
	Nine months ending December 31, 2014	$	1,566		$	3,237		$	32	$	4,835
	Year ending December 31,
	2015	1,780			4,727			42		6,549
	2016	1,575			4,052			41		5,668
	2017	1,393			3,376			40		4,809
	2018	1,232			2,701			39		3,972
	2019	1,056			2,026			38		3,120
	Thereafter	1,508			2,025			204		3,737
Schedule of Servicing Assets at Fair Value	'
	The following table summarizes, in thousands, the changes in capitalized mortgage servicing rights for the three month period ended March 31, 2014 and 2013:
		2014			2013
	Balance at January 1	$	21,788		$	15,653
	Originations	1,435			3,245
	Amortization	(1,079		)	(1,761		)
	Valuation adjustment	—			496
	Balance at March 31	$	22,144		$	17,633
	Fair value of mortgage servicing rights	$	32,032		$	19,389
	Mortgage servicing rights, net to servicing portfolio	0.71		%	0.58		%

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
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 March 31, 2014, and December 31, 2013, in thousands:
		Notional				Fair				Balance	Receive			Weighted		Maturity
		Amount				Value				Sheet	Rate			Average
										Category				Pay Rate
	March 31, 2014
	Interest rate swap	$	11,388			$	(406	)		Other Liabilities	2.91	%		5.14	%	4/20/16
	Interest rate swap	25,000				62				Other Assets	0.233	%		2.255	%	3/17/21
	Interest rate swap	20,000				(1,393		)		Other Liabilities	0.236	%		3.22	%	3/1/17
	Interest rate swap	20,000				(1,668		)		Other Liabilities	0.24	%		3.355	%	1/7/20
	Interest rate swap	10,000				45				Other Assets	0.235	%		1.674	%	3/26/19
	Interest rate swap	10,000				45				Other Assets	0.233	%		1.658	%	3/18/19
	December 31, 2013
	Interest rate swap	$	11,719			$	(457	)		Other Liabilities	2.917	%		5.14	%	4/20/16
	Interest rate swap	25,000				(146		)		Other Liabilities	0.244	%		2.58	%	3/17/14
	Interest rate swap	20,000				(1,507		)		Other Liabilities	0.239	%		3.22	%	3/1/17
	Interest rate swap	20,000				(1,587		)		Other Liabilities	0.243	%		3.355	%	1/7/20
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 three months ended March 31, 2014, and March 31, 2013, 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)
	March 31, 2014
	Interest rate swap	$	51			Interest Expense		$	(65	)	Other Income		$	—
	Interest rate swap	146				Interest Expense		(146		)	Other Income		—
	Interest rate swap	62				Interest Expense		—			Other Income		—
	Interest rate swap	114				Interest Expense		(151		)	Other Income		—
	Interest rate swap	(81		)		Interest Expense		(159		)	Other Income		—
	Interest rate swap	45				Interest Expense		—			Other Income		—
	Interest rate swap	45				Interest Expense		—			Other Income		—
	31-Mar-13
	Interest rate swap	$	66			Interest Expense		$	(71	)	Other Income		$	—
	Interest rate swap	143				Interest Expense		(142		)	Other Income		—
	Interest rate swap	131				Interest Expense		(142		)	Other Income		—
	Interest rate swap	247				Interest Expense		(150		)	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 March 31, 2014, and December 31, 2013, in thousands:
		Balance Sheet Category		Notional				Fair
				Amount				Value
	March 31, 2014
	Interest rate lock commitments (mortgage)	Other Assets		$	92,583			$	2,993
	Forward commitments	Other Assets		108,333				238
	Forward commitments	Other Liabilities		98,823				(307		)
	December 31, 2013
	Interest rate lock commitments (mortgage)	Other Assets		$	63,370			$	1,809
	Forward commitments	Other Assets		117,637				1,206
	Forward commitments	Other Liabilities		53,277				(133		)
	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 months ended March 31, 2014, and March 31, 2013, in thousands:
		Income Statement Category		Year-to-Date
				Gain (Loss) Recognized
	March 31, 2014
	Interest rate lock commitments (mortgage)	Gains on sale of loans held for sale		$	1,882
	Forward commitments	Gains on sale of loans held for sale		(1,142		)
	March 31, 2013
	Interest rate lock commitments (mortgage)	Gains on sale of loans held for sale		$	(3,161	)
	Forward commitments	Gains on sale of loans held for sale		372

Fair_Value_Tables

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2014
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 March 31, 2014, and December 31, 2013, 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
	March 31, 2014
	Assets
	Trading securities	$	—		$	—		$	—	$	—
	Securities available for sale
	U.S. government corporations and agencies	146,696			2,555			144,141		—
	Mortgage-backed securities	1,049,621			—			1,045,291		4,330
	Obligations of states and political subdivisions	199,398			—			199,398		—
	Equity securities	5,041			—			5,041		—
	Derivative financial instruments	152			—			152		—
	Interest rate lock commitments	2,993			—			—		2,993
	Forward commitments	238			—			238		—
	Total assets at fair value	$	1,404,139		$	2,555		$	1,394,261	$	7,323
	Liabilities
	Derivative financial instruments	$	3,467		$	—		$	3,467	$	—
	Forward commitments	307			—			307		—
	Total liabilities at fair value	$	3,774		$	—		$	3,774	$	—
	December 31, 2013
	Assets
	Trading securities	$	1,801		$	1,801		$	—	$	—
	Securities available for sale
	U.S. government corporations and agencies	218,303			4,084			214,219		—
	Mortgage-backed securities	1,143,947			—			1,140,649		3,298
	Obligations of states and political subdivisions	266,624			—			266,624		—
	Equity securities	5,028			—			5,028		—
	Interest rate lock commitments	1,809			—			—		1,809
	Forward commitments	1,206			—			1,206		—
	Total assets at fair value	$	1,638,718		$	5,885		$	1,627,726	$	5,107
	Liabilities
	Derivative financial instruments	$	3,697		$	—		$	3,697	$	—
	Forward commitments	133			—			133		—
	Total liabilities at fair value	$	3,830		$	—		$	3,830	$	—
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 March 31, 2014
		Total			Quoted Prices in			Significant Other		Significant		Losses
					Active Markets for			Observable		Unobservable
					Identical Assets			Inputs		Inputs
					(Level 1)			(Level 2)		(Level 3)
	Collateral dependent impaired loans:
	Commercial	$	440		$	—		$	—	$	440	$	153
	Commercial real estate	6,585			—			—		6,585		583
	Agricultural and agricultural real estate	4,926			—			—		4,926		1,510
	Residential real estate	2,764			—			—		2,764		—
	Consumer	2,613			—			—		2,613		—
	Total collateral dependent impaired loans	$	17,328		$	—		$	—	$	17,328	$	2,246
	Other real estate owned	$	28,083		$	—		$	—	$	28,083	$	123
		Fair Value Measurements at December 31, 2013
		Total			Quoted Prices in			Significant Other		Significant		Losses
					Active Markets for			Observable		Unobservable
					Identical Assets			Inputs		Inputs
					(Level 1)			(Level 2)		(Level 3)
	Collateral dependent impaired loans:
	Commercial	$	7,229		$	—		$	—	$	7,229	$	919
	Commercial real estate	7,749			—			—		7,749		1,881
	Agricultural and agricultural real estate	13,062			—			—		13,062		—
	Residential real estate	3,396			—			—		3,396		—
	Consumer	1,763			—			—		1,763		—
	Total collateral dependent impaired loans	$	33,199		$	—		$	—	$	33,199	$	2,800
	Other real estate owned	$	29,852		$	—		$	—	$	29,852	$	2,799
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:
		Quantitative Information About Level 3 Fair Value Measurements
		Fair Value			Valuation		Unobservable	Range
		at 3/31/14			Technique		Input	(Weighted Average)
	Z-TRANCHE Securities	$	4,330		Discounted cash flows		Pretax discount rate	7.00 - 8.50%
							Actual defaults	12.71-20.14% (15.52%)
							Actual deferrals	6.25-22.35% (11.32%)
	Interest rate lock commitments	2,993			Discounted cash flows		Closing ratio	(1)
	Collateral dependent impaired loans:
	Commercial	440			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Commercial real estate	6,585			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Agricultural and agricultural real estate	4,926			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Residential real estate	2,764			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Consumer	2,613			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Other real estate owned	28,083			Modified appraised value		Third party appraisal	(2)
							Appraisal discount
	(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 closing ratio at March 31, 2014 was 85%.
	(2) 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.
		Quantitative Information About Level 3 Fair Value Measurements
		Fair Value			Valuation		Unobservable	Range
		at 12/31/13			Technique		Input	(Weighted Average)
	Z-TRANCHE Securities	$	3,298		Discounted cash flows		Pretax discount rate	7.00 - 9.00%
							Actual defaults	12.50-28.20% (20.80%)
							Actual deferrals	6.10-16.00% (11.10%)
	Interest rate lock commitments	1,809			Discounted cash flows		Closing ratio	(1)
	Collateral dependent impaired loans:
	Commercial	7,229			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Commercial real estate	7,749			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Agricultural and agricultural real estate	13,062			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Residential real estate	3,396			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Consumer	1,763			Modified appraised value		Third party appraisal	(2)
							Appraisal discount	(2)
	Other real estate owned	29,852			Modified appraised value		Third party appraisal	(2)
							Appraisal discount
	(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 closing ratio at December 31, 2013 was 87%.
	(2) 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 is summarized in the following table, in thousands:
		For the Three Months Ended			For the Year Ended
		March 31, 2014			December 31, 2013
	Balance at January 1,	$	3,298		$	4,089
	Total gains (losses):
	Included in earnings	—			(1,587		)
	Included in other comprehensive income	1,062			826
	Purchases, issuances, sales and settlements:
	Purchases	—			—
	Sales	(30		)	(30		)
	Settlements	—			—
	Balance at period end	$	4,330		$	3,298
	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 Three Months Ended			For the Year Ended
		31-Mar-14			31-Dec-13
	Balance at January 1,	$	1,809		$	9,353
	Total gains (losses) included in earnings	1,882			(10,518		)
	Settlements	(698		)	2,974
	Balance at period end	$	2,993		$	1,809
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
								31-Mar-14
		Carrying			Estimated			Quoted Prices in		Significant Other		Significant
		Amount			Fair			Active Markets for		Observable		Unobservable
					Value			Identical Assets		Inputs		Inputs
								(Level 1)		(Level 2)		(Level 3)
	Financial assets:
	Cash and cash equivalents	$	88,628		$	88,628		$	88,628	$	—	$	—
	Time deposits in other financial institutions	3,355			3,355			3,355		—		—
	Securities:
	Trading	—			—			—		—		—
	Available for sale	1,400,756			1,400,756			2,555		1,393,871		4,330
	Held to maturity	257,927			263,169			—		263,169		—
	Other investments	18,755			18,755			—		18,520		235
	Loans held for sale	54,862			54,862			—		54,862		—
	Loans, net:
	Commercial	974,144			963,353			—		962,913		440
	Commercial real estate	1,548,517			1,548,106			—		1,541,521		6,585
	Agricultural and agricultural real estate	368,168			369,517			—		364,591		4,926
	Residential real estate	362,769			351,492			—		348,728		2,764
	Consumer	291,071			288,898			—		286,285		2,613
	Total Loans, net	3,544,669			3,521,366			—		3,504,038		17,328
	Derivative financial instruments	152			152			—		152		—
	Interest rate lock commitments	2,993			2,993			—		—		2,993
	Forward commitments	238			238			—		238		—
	Financial liabilities:
	Deposits
	Demand deposits	1,195,457			1,195,457			—		1,195,457		—
	Savings deposits	2,582,166			2,582,166			—		2,582,166		—
	Time deposits	885,741			885,741			—		885,741		—
	Short term borrowings	256,250			256,250			—		256,250		—
	Other borrowings	334,916			339,930			—		339,930		—
	Derivative financial instruments	3,467			3,467			—		3,467		—
	Forward commitments	307			307			—		307		—
								Fair Value Measurements at
								31-Dec-13
		Carrying			Estimated			Quoted Prices in		Significant Other		Significant
		Amount			Fair			Active Markets for		Observable		Unobservable
					Value			Identical Assets		Inputs		Inputs
								(Level 1)		(Level 2)		(Level 3)
	Financial assets:
	Cash and cash equivalents	$	125,270		$	125,270		$	125,270	$	—	$	—
	Securities:
	Trading	1,801			1,801			1,801		—		—
	Available for sale	1,633,902			1,633,902			4,084		1,626,520		3,298
	Held to maturity	237,498			237,437			—		237,437		—
	Other investments	21,843			21,843			—		21,608		235
	Loans held for sale	46,665			46,665			—		46,665		—
	Loans, net:
	Commercial	936,305			930,501			—		923,272		7,229
	Commercial real estate	1,516,352			1,512,773			—		1,505,024		7,749
	Agricultural and agricultural real estate	374,203			378,086			—		365,024		13,062
	Residential real estate	347,266			335,362			—		331,966		3,396
	Consumer	286,890			273,139			—		271,376		1,763
	Total Loans, net	3,461,016			3,429,861			—		3,396,662		33,199
	Derivative financial instruments	—			—			—		—		—
	Interest rate lock commitments	1,809			1,809			—		—		1,809
	Forward commitments	1,206			1,206			—		1,206		—
	Financial liabilities:
	Deposits
	Demand deposits	1,238,581			1,238,581			—		1,238,581		—
	Savings deposits	2,535,242			2,535,242			—		2,535,242		—
Time deposits	892,676			892,676			—		892,676		—
Short term borrowings	408,756			408,756			—		408,756		—
Other borrowings	350,109			355,923			—		355,923		—
Derivative financial instruments	3,697			3,697			—		3,697		—
Forward commitments	133			133			—		133		—

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2014
Mortgage Banking [Abstract]	'
Schedule of Segment Reporting	'
	The following tables present financial information from Heartland's operating segments for the three-month period ended March 31, 2014, and 2013, in thousands.
		Three Months Ended
		March 31,
		2014							2013
		Community		Retail			Total		Community		Retail		Total
		and Other		Mortgage					and Other		Mortgage
		Banking		Banking					Banking		Banking
	Net interest income	$	47,855	$	757		$	48,612	$	38,324	$	343	$	38,667
	Provision for loan losses	6,331		—			6,331		637		—		637
	Total noninterest income	11,403		7,324			18,727		12,891		13,075		25,966
	Total noninterest expense	42,214		10,201			52,415		34,018		12,227		46,245
	Income (loss) before taxes	$	10,713	$	(2,120	)	$	8,593	$	16,560	$	1,191	$	17,751
	Segment Assets	$	5,669,512	$	77,590		$	5,747,102	$	4,787,006	$	113,552	$	4,900,558
	Average Loans	$	3,528,356	$	42,771		$	3,571,127	$	2,784,785	$	92,175	$	2,876,960

Basis_of_Presentation_Earnings

Basis of Presentation (Earnings per Share) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share	'	'
Net income attributable to Heartland	$6,890	$12,488
Preferred dividends and discount	-204	-408
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$6,686	$12,080
Weighted average common shares outstanding for basic earnings per share	18,437	16,852
Assumed incremental common shares issued for common stock equivalents	288	335
Weighted average common shares for diluted earnings per share	18,725	17,187
Earnings per common share b basic (in dollars per share)	$0.36	$0.72
Earnings per common share b diluted (in dollars per share)	$0.36	$0.70
Number of antidilutive common stock equivalents excluded from diluted earnings per share computation	95	105

Basis_of_Presentation_StockBas

Basis of Presentation (Stock-Based Compensation) (Details) (USD $)

3 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

12 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 11, 2014

Jan. 22, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 11, 2014

Jan. 22, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2008

Dec. 31, 2008

Dec. 31, 2008

Dec. 31, 2008

Long-Term Incentive Plan 2012

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Restricted Stock Units (RSUs)

Performance-Based Restricted Stock Units

Performance-Based Restricted Stock Units

Stock Option

Stock Option

Stock Option

Stock Option

Stock Option

Stock Option

Long-Term Incentive Plan 2005

Long-Term Incentive Plan 2005

Long-Term Incentive Plan 2005

Long-Term Incentive Plan 2005

Long-Term Incentive Plan 2005

Long-Term Incentive Plan 2005

Period One

Period Two

Period Three

equal_installments

Stock-Based Compensation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares for issuance under future awards

'

'

355,616

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity instruments other than options, granted (in shares)

'

'

'

'

'

67,065

72,595

9,000

0

32,645

40,990

'

'

'

'

'

'

Share-based compensation, award vesting periods

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'3 years

'4 years

'5 years

Award vesting, number of equal installments

'

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

Typical options expiration period after date of grant

'

'

'

'

'

'

'

'

'

'

'

'

'

'10 years

'

'

'

Share-based compensation, award service periods

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

Vested options (in shares)

251,436

366,272

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vested options, weighted average exercise price (in dollars per share)

$23.62

$22.76

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vested options, weighted average remaining contractual life

'2 years 8 months 19 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intrinsic value for vested options

$1,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intrinsic value for the total of all options exercised

39,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum exercise period

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash received from options exercised

96,000

164,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax benefit (expense) from equity based awards

-138,000

16,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based compensation costs

'

'

'

1,100,000

989,000

'

'

'

'

'

'

0

10,000

'

'

'

'

Share-based unrecognized compensation costs

'

'

'

$4,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis_of_Presentation_Summary_

Basis of Presentation (Summary of RSUs Activity) (Details) (Restricted Stock Units (RSUs), USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restricted Stock Units (RSUs)	'	'
Shares	'	'
Outstanding at beginning of period (in shares)	353,070	348,897
Granted (in shares)	108,710	113,585
Exercised (in shares)	-67,024	-30,288
Forfeited (in shares)	-2,003	-170
Outstanding at end of period (in shares)	392,753	432,024
Weighted-Average Grant Date Fair Value	'	'
Outstanding at beginning of period (in dollars per share)	$18.48	$15.75
Granted (in dollars per share)	$27.29	$26.86
Exercised (in dollars per share)	$15.82	$13.95
Forfeited (in dollars per share)	$17.26	$20.64
Outstanding at end of period (in dollars per share)	$21.50	$19.06

Basis_of_Presentation_Summary_1

Basis of Presentation (Summary of Stock Options Activity) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Shares	'	'
Outstanding at beginning of period (in shares)	261,936	377,907
Granted (in shares)	0	0
Exercised (in shares)	-5,000	-9,835
Forfeited (in shares)	-5,500	-1,800
Outstanding at end of period (in shares)	251,436	366,272
Options exercisable at end of period (in shares)	251,436	366,272
Weighted-Average Exercise Price	'	'
Outstanding at beginning of period (in dollars per share)	$23.60	$22.62
Granted (in dollars per share)	$0	$0
Exercised (in dollars per share)	$19.13	$16.69
Forfeited (in dollars per share)	$26.88	$26.68
Outstanding at end of period (in dollars per share)	$23.62	$22.76
Options exercisable at end of period (in dollars per share)	$23.62	$22.76

Basis_of_Presentation_Reclassi

Basis of Presentation (Reclassifications) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'
Loan servicing income, reclassified to gain on sale of loans held-for-sale	$1,400,000	$3,200,000
Other real estate and loan collection expenses, reclassified to other noninterest income	123,000	502,000
Other real estate and loan collection expenses	$838,000	$1,300,000

Securities_Securities_availabl

Securities (Securities available for sale) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$1,405,816	$1,659,456
Gross Unrealized Gains	12,609	11,423
Gross Unrealized Losses	-17,669	-36,977
Estimated Fair Value	1,400,756	1,633,902
Debt Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	1,400,811	1,654,460
Gross Unrealized Gains	12,573	11,391
Gross Unrealized Losses	-17,669	-36,977
Estimated Fair Value	1,395,715	1,628,874
U.S. Government Corporations and Agencies	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	147,350	220,157
Gross Unrealized Gains	115	147
Gross Unrealized Losses	-769	-2,001
Estimated Fair Value	146,696	218,303
Mortgage-Backed Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	1,052,695	1,156,983
Gross Unrealized Gains	10,035	9,538
Gross Unrealized Losses	-13,109	-22,574
Estimated Fair Value	1,049,621	1,143,947
Obligations of States and Political Subdivisions	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	200,766	277,320
Gross Unrealized Gains	2,423	1,706
Gross Unrealized Losses	-3,791	-12,402
Estimated Fair Value	199,398	266,624
Equity Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	5,005	4,996
Gross Unrealized Gains	36	32
Gross Unrealized Losses	0	0
Estimated Fair Value	$5,041	$5,028

Securities_Held_to_maturity_se

Securities (Held to maturity securities) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	$257,927	$237,498
Gross Unrealized Gains	8,661	6,000
Gross Unrealized Losses	-3,419	-6,061
Estimated Fair Value	263,169	237,437
Mortgage-Backed Securities	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	5,933	5,973
Gross Unrealized Gains	245	199
Gross Unrealized Losses	-372	-321
Estimated Fair Value	5,806	5,851
Obligations of States and Political Subdivisions	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	251,994	231,525
Gross Unrealized Gains	8,416	5,801
Gross Unrealized Losses	-3,047	-5,740
Estimated Fair Value	$257,363	$231,586

Securities_Securities_availabl1

Securities (Securities available for sale (debt maturities) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Amortized Cost	'	'
Due in 1 year or less	$8,858	'
Due in 1 to 5 years	94,678	'
Due in 5 to 10 years	83,887	'
Due after 10 years	160,693	'
Total debt securities	348,116	'
Mortgage-backed securities	1,052,695	'
Equity securities	5,005	'
Total investment securities	1,405,816	1,659,456
Estimated Fair Value	'	'
Due in 1 year or less	8,977	'
Due in 1 to 5 years	94,865	'
Due in 5 to 10 years	82,963	'
Due after 10 years	159,289	'
Total debt securities	346,094	'
Mortgage-backed securities	1,049,621	'
Equity securities	5,041	'
Estimated Fair Value	$1,400,756	$1,633,902

Securities_Securities_held_to_

Securities (Securities held to maturity (debt maturities) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Amortized Cost	'	'
Due in 1 year or less	$0	'
Due in 1 to 5 years	12,588	'
Due in 5 to 10 years	42,216	'
Due after 10 years	197,190	'
Total debt securities	251,994	'
Mortgage-backed securities	5,933	'
Total investment securities	257,927	237,498
Estimated Fair Value	'	'
Due in 1 year or less	0	'
Due in 1 to 5 years	13,416	'
Due in 5 to 10 years	43,656	'
Due after 10 years	200,291	'
Total debt securities	257,363	'
Mortgage-backed securities	5,806	'
Estimated Fair Value	$263,169	$237,437

Securities_Realized_gain_loss_

Securities (Realized gain (loss)) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'	'
Proceeds from sales	$355,288	$91,840
Gross security gains	2,472	3,622
Gross security losses	$1,691	$195

Securities_Available_for_sale_

Securities (Available for sale securities losses) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	$725,959	$1,034,016
Less than 12 months, Unrealized Losses	-11,596	-30,517
12 months or longer, Fair Value	158,816	128,943
12 months or longer, Unrealized Losses	-6,073	-6,460
Total, Fair Value	884,775	1,162,959
Total, Unrealized Losses	-17,669	-36,977
U.S. Government Corporations and Agencies	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	130,411	196,345
Less than 12 months, Unrealized Losses	-769	-2,001
12 months or longer, Fair Value	0	0
12 months or longer, Unrealized Losses	0	0
Total, Fair Value	130,411	196,345
Total, Unrealized Losses	-769	-2,001
Mortgage-Backed Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	506,526	640,684
Less than 12 months, Unrealized Losses	-8,413	-17,064
12 months or longer, Fair Value	132,248	118,229
12 months or longer, Unrealized Losses	-4,696	-5,510
Total, Fair Value	638,774	758,913
Total, Unrealized Losses	-13,109	-22,574
Obligations of States and Political Subdivisions	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	89,022	196,987
Less than 12 months, Unrealized Losses	-2,414	-11,452
12 months or longer, Fair Value	26,568	10,714
12 months or longer, Unrealized Losses	-1,377	-950
Total, Fair Value	115,590	207,701
Total, Unrealized Losses	($3,791)	($12,402)

Securities_Held_to_maturity_se1

Securities (Held to maturity securities losses) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	$34,527	$49,345
Less than 12 months, Unrealized Losses	-1,141	-3,827
12 months or longer, Fair Value	33,131	22,339
12 months or longer, Unrealized Losses	-2,278	-2,234
Total, Fair Value	67,658	71,684
Total, Unrealized Losses	-3,419	-6,061
Mortgage-Backed Securities	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	2,163	2,170
Less than 12 months, Unrealized Losses	-372	-319
12 months or longer, Fair Value	0	834
12 months or longer, Unrealized Losses	0	-2
Total, Fair Value	2,163	3,004
Total, Unrealized Losses	-372	-321
Obligations of States and Political Subdivisions	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Less than 12 months, Fair Value	32,364	47,175
Less than 12 months, Unrealized Losses	-769	-3,508
12 months or longer, Fair Value	33,131	21,505
12 months or longer, Unrealized Losses	-2,278	-2,232
Total, Fair Value	65,495	68,680
Total, Unrealized Losses	($3,047)	($5,740)

Securities_Otherthantemporary_

Securities (Other-than-temporary impairments) (Details) (USD $)	1 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
	securities			Available-for-sale Securities	Available-for-sale Securities	Held-to-maturity Securities	Held-to-maturity Securities	Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Investments, Debt and Equity Securities [Abstract]	'	'	'	'	'	'	'	'
Recorded as part of gross realized losses: Credit related OTTI	'	$0	$0	'	'	'	'	'
Recorded as part of gross realized losses: Intent to sell OTTI	'	0	0	'	'	'	'	'
Total recorded as part of gross realized losses	981	0	0	'	'	'	'	'
Recorded directly to AOCI for non-credit related impairment: Residential mortgage backed securities	'	0	0	'	'	'	'	'
Recorded directly to AOCI for non-credit related impairment: Accretion of non-credit related impairment	'	-24	-24	'	'	'	'	'
Total changes to AOCI for non-credit related impairment	'	-24	-24	'	'	'	'	'
Total OTTI losses (accretion) recorded on debt securities, net	'	-24	-24	'	'	'	'	'
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]	'	'	'	'	'	'	'	'
Credit losses related OTTI	'	'	'	184	184	797	797	'
Non-credit related OTTI	'	'	'	'	'	493	517	'
Percentage of Heartland's mortgage-backed securities	'	'	'	'	'	'	'	95.00%
Number of mortgage-backed securities with recorded OTTI	3	'	'	'	'	'	'	'
OTTI write-downs included in earnings, available for sale debt securities	184	'	'	'	'	'	'	'
OTTI write-downs included in earnings, held to maturity debt securities	$797	'	'	'	'	'	'	'

Securities_Other_Securities_De

Securities (Other Securities) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]	'	'
FHLB	$12.50	$15.60

Loans_and_Leases_Loans_and_lea

Loans and Leases (Loans and leases receivable) (Details) (USD $)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

In Thousands, unless otherwise specified

Commercial

Commercial

Commercial Real Estate

Commercial Real Estate

Agricultural and Agricultural Real Estate

Agricultural and Agricultural Real Estate

Commercial and Commercial Real Estate

Commercial and Commercial Real Estate

Commercial and Commercial Real Estate

Commercial and Commercial Real Estate

Residential Real Estate

Residential Real Estate

Residential Real Estate

Residential Real Estate

Consumer

Consumer

Consumer

Gross Loans and Leases Receivable Held to Maturity

Gross Loans and Leases Receivable Held to Maturity

Minimum

Maximum

Minimum

Maximum

Citizens Finance Co

Loans and Finance Receivables

Loans and Leases [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans and leases receivable held to maturity

$3,581,113

$3,500,109

$986,713

$950,197

$1,560,912

$1,529,683

$370,348

$376,735

$2,547,625

$2,479,880

'

'

$365,162

$349,349

'

'

$297,978

$294,145

'

$3,581,113

$3,500,109

Unearned discount

-136

-168

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred loan fees

-3,201

-2,989

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total net loans and leases receivable held to maturity

3,577,776

3,496,952

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans covered under loss share agreements

5,466

5,749

'

'

'

'

502

543

2,292

2,314

'

'

2,062

2,280

'

'

610

612

'

'

'

Allowance for loan and lease losses

-38,573

-41,685

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans and leases receivable, net

$3,544,669

$3,461,016

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Length of loan agreements

'

'

'

'

'

'

'

'

'

'

'1 year

'5 years

'

'

'10 years

'30 years

'

'

'

'

'

Concentration risk, percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

'

'

Loans_and_Leases_Allowance_for

Loans and Leases (Allowance for credit losses on financing receivables) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	$3,266	$6,717	'	'
Ending Balance Under ASC 450-20	35,307	34,968	'	'
Total	38,573	41,685	37,528	38,715
Ending Balance Evaluated for Impairment Under ASC 310-10-35	58,424	71,961	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	3,522,689	3,428,148	'	'
Total	3,581,113	3,500,109	'	'
Commercial	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	603	2,817	'	'
Ending Balance Under ASC 450-20	11,030	10,282	'	'
Total	11,633	13,099	9,299	11,388
Ending Balance Evaluated for Impairment Under ASC 310-10-35	8,172	14,644	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	978,541	935,553	'	'
Total	986,713	950,197	'	'
Commercial Real Estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	365	818	'	'
Ending Balance Under ASC 450-20	12,645	13,334	'	'
Total	13,010	14,152	15,190	14,473
Ending Balance Evaluated for Impairment Under ASC 310-10-35	27,403	28,299	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	1,533,509	1,501,384	'	'
Total	1,560,912	1,529,683	'	'
Agricultural and Agricultural Real Estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	15	756	'	'
Ending Balance Under ASC 450-20	2,556	2,236	'	'
Total	2,571	2,992	2,195	2,138
Ending Balance Evaluated for Impairment Under ASC 310-10-35	9,006	16,667	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	361,342	360,068	'	'
Total	370,348	376,735	'	'
Residential Real Estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	538	605	'	'
Ending Balance Under ASC 450-20	3,133	3,115	'	'
Total	3,671	3,720	3,266	3,543
Ending Balance Evaluated for Impairment Under ASC 310-10-35	7,668	7,214	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	357,494	342,135	'	'
Total	365,162	349,349	'	'
Consumer	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	1,745	1,721	'	'
Ending Balance Under ASC 450-20	5,631	6,001	'	'
Total	7,376	7,722	7,578	7,173
Ending Balance Evaluated for Impairment Under ASC 310-10-35	6,175	5,137	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	291,803	289,008	'	'
Total	297,978	294,145	'	'
Unallocated	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Ending Balance Under ASC 310-10-35	0	0	'	'
Ending Balance Under ASC 450-20	312	0	'	'
Total	312	0	0	0
Ending Balance Evaluated for Impairment Under ASC 310-10-35	0	0	'	'
Ending Balance Evaluated for Impairment Under ASC 450-20	0	0	'	'
Total	$0	$0	'	'

Loans_and_Leases_Financing_rec

Loans and Leases (Financing receivables, non accrual status) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Nonaccrual loans	$26,630	$29,313
Nonaccrual troubled debt restructured loans	5,298	13,081
Total nonaccrual loans	31,928	42,394
Accruing loans past due 90 days or more	0	24
Performing troubled debt restructured loans	$12,548	$19,353

Loans_and_Leases_Troubled_debt

Loans and Leases (Troubled debt restructurings on financing receivables) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
	loans	loans
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	1	7
Pre-modification recorded investment	$368	$7,892
Post-modification recorded investment	368	7,892
Commercial	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	0	2
Pre-modification recorded investment	0	4,670
Post-modification recorded investment	0	4,670
Commercial Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	1	0
Pre-modification recorded investment	368	0
Post-modification recorded investment	368	0
Commercial and Commercial Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	1	2
Pre-modification recorded investment	368	4,670
Post-modification recorded investment	368	4,670
Agricultural and Agricultural Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	0	3
Pre-modification recorded investment	0	2,576
Post-modification recorded investment	0	2,576
Residential Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	0	2
Pre-modification recorded investment	0	646
Post-modification recorded investment	0	646
Consumer	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of loans	0	0
Pre-modification recorded investment	0	0
Post-modification recorded investment	$0	$0

Loans_and_Leases_Loans_and_lea1

Loans and Leases (Loans and leases not covered by share agreements (credit quality indicator)) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	loans
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	$3,581,113	$3,500,109
Number of loans classified as loss	0	'
Commercial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	986,713	950,197
Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	1,560,912	1,529,683
Commercial and Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	2,547,625	2,479,880
Agricultural and Agricultural Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	370,348	376,735
Residential Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	365,162	349,349
Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	297,978	294,145
Pass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	3,258,337	3,215,775
Pass | Commercial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	896,019	871,825
Pass | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	1,401,965	1,390,820
Pass | Commercial and Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	2,297,984	2,262,645
Pass | Agricultural and Agricultural Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	330,764	335,821
Pass | Residential Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	340,936	333,161
Pass | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	288,653	284,148
Nonpass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	322,776	284,334
Nonpass | Commercial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	90,694	78,372
Nonpass | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	158,947	138,863
Nonpass | Commercial and Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	249,641	217,235
Nonpass | Agricultural and Agricultural Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	39,584	40,914
Nonpass | Residential Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	24,226	16,188
Nonpass | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	$9,325	$9,997

Loans_and_Leases_Loans_and_lea2

Loans and Leases (Loans and leases not covered by share agreements (in text)) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and leases receivable	$3,581,113	$3,500,109
Impaired loans, related allowance	3,266	6,717
Loans delinquent 30 to 89 days, percentage	0.31%	0.30%
Nonpass	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Percent of nonaccrual loans	10.00%	15.00%
Loans and leases receivable	$322,776	$284,334
Special Mention	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Percent of loans	70.00%	59.00%
Substandard	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Percent of loans	30.00%	38.00%
Doubtful	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Percent of loans	'	3.00%

Loans_and_Leases_Loans_and_lea3

Loans and Leases (Loans and leases not covered by share agreements (past due financing receivables)) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$8,195	$8,380
60-89 Days Past Due	2,916	2,085
90 Days or More Past Due	0	24
Total Past Due	11,111	10,489
Current	3,538,074	3,447,226
Nonaccrual	31,928	42,394
Total	3,581,113	3,500,109
Commercial	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	657	697
60-89 Days Past Due	919	741
90 Days or More Past Due	0	0
Total Past Due	1,576	1,438
Current	978,621	935,508
Nonaccrual	6,516	13,251
Total	986,713	950,197
Commercial Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	3,363	3,042
60-89 Days Past Due	1,349	199
90 Days or More Past Due	0	24
Total Past Due	4,712	3,265
Current	1,543,649	1,511,618
Nonaccrual	12,551	14,800
Total	1,560,912	1,529,683
Commercial and Commercial Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	4,020	3,739
60-89 Days Past Due	2,268	940
90 Days or More Past Due	0	24
Total Past Due	6,288	4,703
Current	2,522,270	2,447,126
Nonaccrual	19,067	28,051
Total	2,547,625	2,479,880
Agricultural and Agricultural Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	417	818
60-89 Days Past Due	82	0
90 Days or More Past Due	0	0
Total Past Due	499	818
Current	364,791	369,907
Nonaccrual	5,058	6,010
Total	370,348	376,735
Residential Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	1,580	1,199
60-89 Days Past Due	0	56
90 Days or More Past Due	0	0
Total Past Due	1,580	1,255
Current	358,051	342,735
Nonaccrual	5,531	5,359
Total	365,162	349,349
Consumer	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	2,178	2,624
60-89 Days Past Due	566	1,089
90 Days or More Past Due	0	0
Total Past Due	2,744	3,713
Current	292,962	287,458
Nonaccrual	2,272	2,974
Total	$297,978	$294,145

Loans_and_Leases_Impaired_loan

Loans and Leases (Impaired loans not covered by loss share agreements) (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	$12,674	$36,828
Impaired loans without a related allowance, Unpaid Contractual Balance	54,588	42,400
Total impaired loans held to maturity, Unpaid Contractual Balance	67,262	79,228
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	12,579	36,573
Impaired loans without a related allowance, Loan Balance	45,845	35,388
Total impaired loans held to maturity, Loan Balance	58,424	71,961
Impaired loans, Related Allowance Recorded	3,266	6,717
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	25,468	27,235
Impaired loans without a related allowance, Avg. Loan Balance	39,777	50,768
Total impaired loans held to maturity, Avg. Loan Balance	65,245	78,003
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	49	787
Impaired loans without a related allowance, Interest Income Recognized	387	933
Total impaired loans held to maturity, Interest Income Recognized	436	1,720
Commercial	'	'
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	5,063	7,901
Impaired loans without a related allowance, Unpaid Contractual Balance	3,879	7,724
Total impaired loans held to maturity, Unpaid Contractual Balance	8,942	15,625
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	4,987	7,901
Impaired loans without a related allowance, Loan Balance	3,185	6,743
Total impaired loans held to maturity, Loan Balance	8,172	14,644
Impaired loans, Related Allowance Recorded	603	2,817
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	7,690	5,343
Impaired loans without a related allowance, Avg. Loan Balance	5,368	9,394
Total impaired loans held to maturity, Avg. Loan Balance	13,058	14,737
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	5	38
Impaired loans without a related allowance, Interest Income Recognized	20	89
Total impaired loans held to maturity, Interest Income Recognized	25	127
Commercial Real Estate	'	'
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	906	9,164
Impaired loans without a related allowance, Unpaid Contractual Balance	32,538	24,830
Total impaired loans held to maturity, Unpaid Contractual Balance	33,444	33,994
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	887	8,909
Impaired loans without a related allowance, Loan Balance	26,516	19,390
Total impaired loans held to maturity, Loan Balance	27,403	28,299
Impaired loans, Related Allowance Recorded	365	818
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	3,971	7,686
Impaired loans without a related allowance, Avg. Loan Balance	22,806	25,676
Total impaired loans held to maturity, Avg. Loan Balance	26,777	33,362
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	8	282
Impaired loans without a related allowance, Interest Income Recognized	272	538
Total impaired loans held to maturity, Interest Income Recognized	280	820
Commercial and Commercial Real Estate	'	'
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	5,969	17,065
Impaired loans without a related allowance, Unpaid Contractual Balance	36,417	32,554
Total impaired loans held to maturity, Unpaid Contractual Balance	42,386	49,619
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	5,874	16,810
Impaired loans without a related allowance, Loan Balance	29,701	26,133
Total impaired loans held to maturity, Loan Balance	35,575	42,943
Impaired loans, Related Allowance Recorded	968	3,635
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	11,661	13,029
Impaired loans without a related allowance, Avg. Loan Balance	28,174	35,070
Total impaired loans held to maturity, Avg. Loan Balance	39,835	48,099
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	13	320
Impaired loans without a related allowance, Interest Income Recognized	292	627
Total impaired loans held to maturity, Interest Income Recognized	305	947
Agricultural and Agricultural Real Estate	'	'
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	472	13,818
Impaired loans without a related allowance, Unpaid Contractual Balance	10,044	2,849
Total impaired loans held to maturity, Unpaid Contractual Balance	10,516	16,667
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	472	13,818
Impaired loans without a related allowance, Loan Balance	8,534	2,849
Total impaired loans held to maturity, Loan Balance	9,006	16,667
Impaired loans, Related Allowance Recorded	15	756
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	7,070	7,537
Impaired loans without a related allowance, Avg. Loan Balance	5,224	9,985
Total impaired loans held to maturity, Avg. Loan Balance	12,294	17,522
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	2	354
Impaired loans without a related allowance, Interest Income Recognized	30	189
Total impaired loans held to maturity, Interest Income Recognized	32	543
Residential Real Estate	'	'
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	1,875	2,460
Impaired loans without a related allowance, Unpaid Contractual Balance	6,309	5,345
Total impaired loans held to maturity, Unpaid Contractual Balance	8,184	7,805
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	1,875	2,460
Impaired loans without a related allowance, Loan Balance	5,793	4,754
Total impaired loans held to maturity, Loan Balance	7,668	7,214
Impaired loans, Related Allowance Recorded	538	605
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	2,286	3,179
Impaired loans without a related allowance, Avg. Loan Balance	4,729	4,198
Total impaired loans held to maturity, Avg. Loan Balance	7,015	7,377
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	4	13
Impaired loans without a related allowance, Interest Income Recognized	50	80
Total impaired loans held to maturity, Interest Income Recognized	54	93
Consumer	'	'
Impaired Financing Receivable, Unpaid Principal Balance [Abstract]	'	'
Impaired loans with a related allowance, Unpaid Contractual Balance	4,358	3,485
Impaired loans without a related allowance, Unpaid Contractual Balance	1,818	1,652
Total impaired loans held to maturity, Unpaid Contractual Balance	6,176	5,137
Impaired Financing Receivable, Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Loan Balance	4,358	3,485
Impaired loans without a related allowance, Loan Balance	1,817	1,652
Total impaired loans held to maturity, Loan Balance	6,175	5,137
Impaired loans, Related Allowance Recorded	1,745	1,721
Impaired Financing Receivable, Average Recorded Investment [Abstract]	'	'
Impaired loans with a related allowance, Avg. Loan Balance	4,451	3,490
Impaired loans without a related allowance, Avg. Loan Balance	1,650	1,515
Total impaired loans held to maturity, Avg. Loan Balance	6,101	5,005
Impaired Financing Receivable, Interest Income, Accrual Method [Abstract]	'	'
Impaired loans with a related allowance, Interest Income Recognized	30	100
Impaired loans without a related allowance, Interest Income Recognized	15	37
Total impaired loans held to maturity, Interest Income Recognized	$45	$137

Loans_and_Leases_Carrying_amou

Loans and Leases (Carrying amount loans covered by loss share agreements) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Loans covered by loss share agreement (carrying amount) [Line Items]	'	'
Impaired purchased loans	$1,139	$1,087
Non impaired purchased loans	4,327	4,662
Total covered loans	5,466	5,749
Commercial and Commercial Real Estate	'	'
Loans covered by loss share agreement (carrying amount) [Line Items]	'	'
Impaired purchased loans	565	549
Non impaired purchased loans	1,727	1,765
Total covered loans	2,292	2,314
Agricultural and Agricultural Real Estate	'	'
Loans covered by loss share agreement (carrying amount) [Line Items]	'	'
Impaired purchased loans	0	0
Non impaired purchased loans	502	543
Total covered loans	502	543
Residential Real Estate	'	'
Loans covered by loss share agreement (carrying amount) [Line Items]	'	'
Impaired purchased loans	0	0
Non impaired purchased loans	2,062	2,280
Total covered loans	2,062	2,280
Consumer	'	'
Loans covered by loss share agreement (carrying amount) [Line Items]	'	'
Impaired purchased loans	574	538
Non impaired purchased loans	36	74
Total covered loans	$610	$612

Loans_and_Leases_Troubled_debt1

Loans and Leases (Troubled debt in text) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Jul. 02, 2009	Jul. 02, 2009	Jul. 02, 2009
	loans	loans	Galena State Bank & Trust Co.	Galena State Bank & Trust Co.	Galena State Bank & Trust Co.	Galena State Bank & Trust Co.	Elizabeth State Bank	Elizabeth State Bank	Elizabeth State Bank
			agreements	Non-residential Real Estate	Non-residential Real Estate	Residential Real Estate		Impaired Purchased Loans	Nonimpaired Purchased Loans
				Losses	Recoveries
Financing Receivable, Modifications [Line Items]	'	'	'	'	'	'	'	'	'
Number of loans with payment defaults	0	0	'	'	'	'	'	'	'
Contractually required payments of loans acquired	'	'	'	'	'	'	$42.70	$13.80	$28.90
Estimated fair value of loans acquired	'	'	'	'	'	'	37.8	9	28.7
Number of loss share agreements	'	'	2	'	'	'	'	'	'
Shared loss arrangement, maximum covered assets	'	'	$10	'	'	'	'	'	'
Loss sharing agreement, term	'	'	'	'5 years	'8 years	'10 years	'	'	'

Allowance_for_Loan_and_Lease_L2

Allowance for Loan and Lease Losses (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	$41,685	$38,715
Charge-offs	-10,658	-3,064
Recoveries	1,215	1,240
Provision	6,331	637
Ending Balance	38,573	37,528
Commercial	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	13,099	11,388
Charge-offs	-6,917	-538
Recoveries	199	781
Provision	5,252	-2,332
Ending Balance	11,633	9,299
Commercial Real Estate	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	14,152	14,473
Charge-offs	-923	-1,243
Recoveries	780	186
Provision	-999	1,774
Ending Balance	13,010	15,190
Agricultural	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	2,992	2,138
Charge-offs	-1,511	-23
Recoveries	2	12
Provision	1,088	68
Ending Balance	2,571	2,195
Residential Real Estate	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	3,720	3,543
Charge-offs	-149	-265
Recoveries	26	7
Provision	74	-19
Ending Balance	3,671	3,266
Consumer	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	7,722	7,173
Charge-offs	-1,158	-995
Recoveries	208	254
Provision	604	1,146
Ending Balance	7,376	7,578
Unallocated	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Beginning Balance	0	0
Charge-offs	0	0
Recoveries	0	0
Provision	312	0
Ending Balance	$312	$0

Goodwill_Core_Deposit_Premium_2

Goodwill, Core Deposit Premium and Other Intangible Assets (Goodwill) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'
Goodwill	$35,583	$35,583

Goodwill_Core_Deposit_Premium_3

Goodwill, Core Deposit Premium and Other Intangible Assets (Carrying amount of intangible assets (incl accumulated amortization) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	$55,380	$54,406
Accumulated Amortization	22,690	21,447
Net Carrying Amount	32,690	32,959
Core Deposits [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	21,069	21,069
Accumulated Amortization	10,959	10,345
Net Carrying Amount	10,110	10,724
Mortgage Servicing Rights [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	33,134	32,160
Accumulated Amortization	10,990	10,372
Net Carrying Amount	22,144	21,788
Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Gross Carrying Amount	1,177	1,177
Accumulated Amortization	741	730
Net Carrying Amount	$436	$447

Goodwill_Core_Deposit_Premium_4

Goodwill, Core Deposit Premium and Other Intangible Assets (Estimated future amortization expense for amortizable intangible assets) (Details) (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Future amortization expense for amortizable intangible assets [Line Items]	'
Nine months ending December 31, 2014	$4,835
Year ending December 31, 2015	6,549
Year ending December 31, 2016	5,668
Year ending December 31, 2017	4,809
Year ending December 31, 2018	3,972
Year ending December 31, 2019	3,120
Thereafter	3,737
Core Deposits [Member]	'
Future amortization expense for amortizable intangible assets [Line Items]	'
Nine months ending December 31, 2014	1,566
Year ending December 31, 2015	1,780
Year ending December 31, 2016	1,575
Year ending December 31, 2017	1,393
Year ending December 31, 2018	1,232
Year ending December 31, 2019	1,056
Thereafter	1,508
Mortgage Servicing Rights [Member]	'
Future amortization expense for amortizable intangible assets [Line Items]	'
Nine months ending December 31, 2014	3,237
Year ending December 31, 2015	4,727
Year ending December 31, 2016	4,052
Year ending December 31, 2017	3,376
Year ending December 31, 2018	2,701
Year ending December 31, 2019	2,026
Thereafter	2,025
Customer Relationships [Member]	'
Future amortization expense for amortizable intangible assets [Line Items]	'
Nine months ending December 31, 2014	32
Year ending December 31, 2015	42
Year ending December 31, 2016	41
Year ending December 31, 2017	40
Year ending December 31, 2018	39
Year ending December 31, 2019	38
Thereafter	$204

Goodwill_Core_Deposit_Premium_5

Goodwill, Core Deposit Premium and Other Intangible Assets (Mortgage loans servicing) (Details) (USD $)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mortgage Servicing Rights 15-year Tranche [Member]

Mortgage Servicing Rights 30-year Tranche [Member]

Mortgage Servicing Rights 30-year Tranche [Member]

Mortgage Servicing Rights [Member]

Mortgage Servicing Rights [Member]

Mortgage Servicing Rights [Member]

Mortgage Servicing Rights [Member]

Mortgage Servicing Rights [Member]

Mortgage Servicing Rights [Member]

Mortgage Servicing Rights [Member]

Minimum

Minimum

Maximum

Maximum

Valuation servicing rights in tranches [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage loans serviced for others

$3,110,000,000

$3,050,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Servicing asset at amortized value

32,032,000

32,000,000

19,389,000

'

'

'

'

'

'

'

'

'

'

'

Servicing asset, agreement term

'

'

'

'

'15 years

'30 years

'30 years

'

'

'

'

'

'

'

Servicing asset at amortized cost

22,144,000

21,788,000

17,633,000

15,653,000

'

'

'

'

'

'

'

'

'

'

Prepayment rate

'

'

'

'

'

'

'

10.05%

'

9.65%

'

'

'

'

Discount rate

'

'

'

'

'

'

'

9.66%

'

10.15%

'

'

'

'

Average cap rate

'

'

'

'

'

'

'

'

'

'

0.83%

0.79%

1.16%

1.39%

Fees collected for servicing of mortgage loans

'

'

'

'

'

'

'

$2,100,000

$1,400,000

'

'

'

'

'

Goodwill_Core_Deposit_Premium_6

Goodwill, Core Deposit Premium and Other Intangible Assets (Changes in capitalized mortgage servicing rights) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Finite-lived Intangible Assets [Roll Forward]	'	'	'
Balance at beginning of period	$21,788	$15,653	'
Originations	1,435	3,245	'
Amortization	-1,079	-1,761	'
Valuation adjustment	0	496	'
Balance at end of period	22,144	17,633	'
Fair value of mortgage servicing rights	$32,032	$19,389	$32,000
Servicing Asset, Net to Servicing Portfolio, Percentage	0.71%	0.58%	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Cash collateral on derivative financial instruments) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Derivative [Line Items]	'	'
Cash pledged as collateral	$4,000,000	$5,400,000
Counterparties	'	'
Derivative [Line Items]	'	'
Cash pledged as collateral	$0	$540,000

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Estimated cash payments and reclassification to interest expense) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Change in net unrealized losses on cash flow hedges	$521,000
Estimated amount to be reclassified from accumulated other comprehensive income to interest expense within the next twelve months	$2,100,000

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Executed interest rate swap) (Details) (Interest Rate Swap, USD $)	Apr. 20, 2011	Mar. 31, 2014	Dec. 31, 2009	Mar. 31, 2014
In Millions, unless otherwise specified		Cash Flow Hedges	Cash Flow Hedges	Cash Flow Hedges
		transaction	transaction	New Contracts
				transaction
Derivative [Line Items]	'	'	'	'
Derivative, notional amount	$15	$85	'	$16.60
Number of swap transactions	'	5	3	2

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Balance sheet category and fair values of derivative instruments (cash flow hedges)) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other Liabilities | Interest Rate Swap 1	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	$11,388	$11,719
Fair Value	-406	-457
Receive Rate	2.91%	2.92%
Weighted Average Pay Rate	5.14%	5.14%
Other Liabilities | Interest Rate Swap 2	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	'	25,000
Fair Value	'	-146
Receive Rate	'	0.24%
Weighted Average Pay Rate	'	2.58%
Other Liabilities | Interest Rate Swap 3	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	20,000	20,000
Fair Value	-1,393	-1,507
Receive Rate	0.24%	0.24%
Weighted Average Pay Rate	3.22%	3.22%
Other Liabilities | Interest Rate Swap 4	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	20,000	20,000
Fair Value	-1,668	-1,587
Receive Rate	0.24%	0.24%
Weighted Average Pay Rate	3.36%	3.36%
Other Assets | Interest Rate Swap 2	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	25,000	'
Fair Value	62	'
Receive Rate	0.23%	'
Weighted Average Pay Rate	2.26%	'
Other Assets | Interest Rate Swap 5	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	10,000	'
Fair Value	45	'
Receive Rate	0.24%	'
Weighted Average Pay Rate	1.67%	'
Other Assets | Interest Rate Swap 6	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	10,000	'
Fair Value	$45	'
Receive Rate	0.23%	'
Weighted Average Pay Rate	1.66%	'

Derivative_Financial_Instrumen6

Derivative Financial Instruments (Gains (losses) recognized on derivatives (cash flow hedges)) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Interest Expense | Interest Rate Swap 1	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	$51	$66
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	-65	-71
Interest Expense | Interest Rate Swap 2	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	146	143
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	-146	-142
Interest Expense | Interest Rate Swap 3	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	62	131
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	0	-142
Interest Expense | Interest Rate Swap 4	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	114	247
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	-151	-150
Interest Expense | Interest Rate Swap 5	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	-81	'
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	-159	'
Interest Expense | Interest Rate Swap 6	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	45	'
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	0	'
Interest Expense | Interest Rate Swap 7	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Effective Portion, Recognized in OCI, Amount of Gain (Loss)	45	'
Effective Portion, Reclassified from AOCI into Income, Amount of Gain (Loss)	0	'
Other Income | Interest Rate Swap 1	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0
Other Income | Interest Rate Swap 2	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0
Other Income | Interest Rate Swap 3	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0
Other Income | Interest Rate Swap 4	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	0
Other Income | Interest Rate Swap 5	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	'
Other Income | Interest Rate Swap 6	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	0	'
Other Income | Interest Rate Swap 7	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Ineffective Portion, Recognized in Income on Derivatives, Amount of Gain (Loss)	$0	'

Derivative_Financial_Instrumen7

Derivative Financial Instruments (Balance sheet category and fair values of derivative instruments (not designated as hedging instruments)) (Details) (Not Designated as Hedging Instrument, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other Assets | Interest Rate Lock Commitments	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	$92,583	$63,370
Fair Value	2,993	1,809
Other Assets | Forward Contracts	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	108,333	117,637
Fair Value	238	1,206
Other Liabilities | Forward Contracts	'	'
Derivatives, Fair Value [Line Items]	'	'
Notional Amount	98,823	53,277
Fair Value	($307)	($133)

Derivative_Financial_Instrumen8

Derivative Financial Instruments (Derivative instruments gains an dlosses recognized (not designated as hedging instruments)) (Details) (Gain on Sale of Loans Held for Sale, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Interest Rate Lock Commitments	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Year-to-Date Gain(Loss) Recognized	$1,882	($3,161)
Forward Contracts	'	'
Trading Activity, Gains and Losses, Net [Line Items]	'	'
Year-to-Date Gain(Loss) Recognized	($1,142)	$372

Fair_Value_Fair_value_measurem

Fair Value (Fair value measurement recurring) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Trading securities	$0	$1,801
Securities available for sale	1,400,756	1,633,902
Forward Commitments	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	238	1,206
U.S. Government Corporations and Agencies	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	146,696	218,303
Mortgage-Backed Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,049,621	1,143,947
Obligations of States and Political Subdivisions	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	199,398	266,624
Equity Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	5,041	5,028
Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Trading securities	0	1,801
Securities available for sale	2,555	4,084
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]	'	'
Trading securities	0	0
Securities available for sale	1,393,871	1,626,520
Derivative assets	152	0
Derivative liabilities	3,467	3,697
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	238	1,206
Derivative liabilities	307	133
Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Trading securities	0	0
Securities available for sale	4,330	3,298
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	2,993	1,809
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 | Total Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Trading securities	0	1,801
Total assets at fair value	1,404,139	1,638,718
Total liabilities at fair value	3,774	3,830
Recurring Basis | Total Fair Value | Interest Rate Swap	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	152	'
Derivative liabilities	3,467	3,697
Recurring Basis | Total Fair Value | Interest Rate Lock Commitments	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	2,993	1,809
Recurring Basis | Total Fair Value | Forward Commitments	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	238	1,206
Derivative liabilities	307	133
Recurring Basis | Total Fair Value | U.S. Government Corporations and Agencies	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	146,696	218,303
Recurring Basis | Total Fair Value | Mortgage-Backed Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,049,621	1,143,947
Recurring Basis | Total Fair Value | Obligations of States and Political Subdivisions	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	199,398	266,624
Recurring Basis | Total Fair Value | Equity Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	5,041	5,028
Recurring Basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Trading securities	0	1,801
Total assets at fair value	2,555	5,885
Total liabilities at fair value	0	0
Recurring Basis | Level 1 | Interest Rate Swap	'	'
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	2,555	4,084
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 | 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]	'	'
Trading securities	0	0
Total assets at fair value	1,394,261	1,627,726
Total liabilities at fair value	3,774	3,830
Recurring Basis | Level 2 | Interest Rate Swap	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	152	'
Derivative liabilities	3,467	3,697
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	238	1,206
Derivative liabilities	307	133
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	144,141	214,219
Recurring Basis | Level 2 | Mortgage-Backed Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,045,291	1,140,649
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	199,398	266,624
Recurring Basis | Level 2 | Equity Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	5,041	5,028
Recurring Basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Trading securities	0	0
Total assets at fair value	7,323	5,107
Total liabilities at fair value	0	0
Recurring Basis | Level 3 | Interest Rate Swap	'	'
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	2,993	1,809
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	4,330	3,298
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 | Equity Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	$0	$0

Fair_Value_Fair_value_measurem1

Fair Value (Fair value measurement non-recurring) (Details) (Nonrecurring Basis, USD $)	Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Total Fair Value	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	$17,328		$33,199
Other real estate owned	28,083		29,852
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	17,328		33,199
Other real estate owned	28,083	[1]	29,852	[1]
Losses	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	2,246		2,800
Other real estate owned	123		2,799
Commercial | Total Fair Value	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	440		7,229
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	440	[1]	7,229	[1]
Commercial | Losses	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	153		919
Commercial Real Estate | Total Fair Value	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	6,585		7,749
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	6,585	[1]	7,749	[1]
Commercial Real Estate | Losses	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	583		1,881
Agricultural and Agricultural Real Estate | Total Fair Value	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	4,926		13,062
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	4,926	[1]	13,062	[1]
Agricultural and Agricultural Real Estate | Losses	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	1,510		0
Residential Real Estate | Total Fair Value	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	2,764		3,396
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	2,764	[1]	3,396	[1]
Residential Real Estate | Losses	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	0		0
Consumer | Total Fair Value	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	2,613		1,763
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	2,613	[1]	1,763	[1]
Consumer | Losses	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Collateral dependent impaired loans	$0		$0
[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 $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Securities available for sale	$1,400,756		$1,633,902
Level 3	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Securities available for sale	4,330		3,298
Derivative assets	0		0
Level 3 | Interest Rate Lock Commitments	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Derivative assets	2,993		1,809
Level 3 | Recurring Basis | Interest Rate Lock Commitments	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Derivative assets	2,993		1,809
Closing ratio	85.00%		87.00%
Level 3 | Recurring Basis | Z-Tranche Securities	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Securities available for sale	4,330		3,298
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	12.71%		12.50%
Actual deferrals	6.25%		6.10%
Level 3 | Recurring Basis | Z-Tranche Securities | Maximum	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Pretax discount rate	8.50%		9.00%
Actual defaults	20.14%		28.20%
Actual deferrals	22.35%		16.00%
Level 3 | Recurring Basis | Z-Tranche Securities | Weighted Average	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Actual defaults	15.52%		20.80%
Actual deferrals	11.32%		11.10%
Level 3 | Recurring Basis | Z-Tranche Securities | Interest Rate Lock Commitments	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Derivative assets	2,993	[1]	1,809	[2]
Level 3 | Nonrecurring Basis	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Collateral dependent impaired loans	17,328		33,199
Other real estate owned	28,083	[3]	29,852	[3]
Level 3 | Nonrecurring Basis | Commercial	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Collateral dependent impaired loans	440	[3]	7,229	[3]
Level 3 | Nonrecurring Basis | Commercial Real Estate	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Collateral dependent impaired loans	6,585	[3]	7,749	[3]
Level 3 | Nonrecurring Basis | Agricultural and Agricultural Real Estate	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Collateral dependent impaired loans	4,926	[3]	13,062	[3]
Level 3 | Nonrecurring Basis | Residential Real Estate	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Collateral dependent impaired loans	2,764	[3]	3,396	[3]
Level 3 | Nonrecurring Basis | Consumer	'		'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'		'
Collateral dependent impaired loans	$2,613	[3]	$1,763	[3]
[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 closing ratio at March 31, 2014 was 85%.
[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 closing ratio at December 31, 2013 was 87%.
[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_Changes_Level_3_ass

Fair Value (Changes Level 3 assets (fair value, recurring)) (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Interest Rate Lock Commitments	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'
Balance at January 1	$1,809,000	$9,353,000
Total gains (losses):	'	'
Included in earnings	1,882,000	-10,518,000
Purchases, issuances, sales and settlements:	'	'
Settlements	-698,000	2,974,000
Balance at period end	2,993,000	1,809,000
Gain (loss) on sale of loans held-for-sale	3,000,000	1,800,000
Z-Tranche Securities	'	'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'
Balance at January 1	3,298,000	4,089,000
Total gains (losses):	'	'
Included in earnings	0	-1,587,000
Included in other comprehensive income	1,062,000	826,000
Purchases, issuances, sales and settlements:	'	'
Purchases	0	0
Sales	-30,000	-30,000
Settlements	0	0
Balance at period end	$4,330,000	$3,298,000

Fair_Value_Estimated_fair_valu

Fair Value (Estimated fair value financial instruments (incl. carrying amounts)) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Trading securities	$0	$1,801
Securities available for sale	1,400,756	1,633,902
Held to maturity securities	263,169	237,437
Forward Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	238	1,206
Quoted Prices in Active Markets for Identical Assets (Level 1)	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	88,628	125,270
Time deposits in other financial institutions	3,355	'
Trading securities	0	1,801
Securities available for sale	2,555	4,084
Held to maturity securities	0	0
Other investments	0	0
Loans held for sale	0	0
Loans, net	0	0
Derivative assets	0	0
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	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Savings Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Time Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest Rate Lock Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Forward Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Agricultural and Agricultural Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	0	0
Significant Other Observable Inputs (Level 2)	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	0	0
Time deposits in other financial institutions	0	'
Trading securities	0	0
Securities available for sale	1,393,871	1,626,520
Held to maturity securities	263,169	237,437
Other investments	18,520	21,608
Loans held for sale	54,862	46,665
Loans, net	3,504,038	3,396,662
Derivative assets	152	0
Short term borrowings	256,250	408,756
Other borrowings	339,930	355,923
Derivative liabilities	3,467	3,697
Significant Other Observable Inputs (Level 2) | Demand Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	1,195,457	1,238,581
Significant Other Observable Inputs (Level 2) | Savings Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	2,582,166	2,535,242
Significant Other Observable Inputs (Level 2) | Time Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	885,741	892,676
Significant Other Observable Inputs (Level 2) | Interest Rate Lock Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	0	0
Significant Other Observable Inputs (Level 2) | Forward Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	238	1,206
Derivative liabilities	307	133
Significant Other Observable Inputs (Level 2) | Commercial	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	962,913	923,272
Significant Other Observable Inputs (Level 2) | Commercial Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	1,541,521	1,505,024
Significant Other Observable Inputs (Level 2) | Agricultural and Agricultural Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	364,591	365,024
Significant Other Observable Inputs (Level 2) | Residential Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	348,728	331,966
Significant Other Observable Inputs (Level 2) | Consumer	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	286,285	271,376
Significant Unobservable Inputs (Level 3)	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	0	0
Time deposits in other financial institutions	0	'
Trading securities	0	0
Securities available for sale	4,330	3,298
Held to maturity securities	0	0
Other investments	235	235
Loans held for sale	0	0
Loans, net	17,328	33,199
Derivative assets	0	0
Short term borrowings	0	0
Other borrowings	0	0
Derivative liabilities	0	0
Significant Unobservable Inputs (Level 3) | Demand Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	0	0
Significant Unobservable Inputs (Level 3) | Savings Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	0	0
Significant Unobservable Inputs (Level 3) | Time Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	0	0
Significant Unobservable Inputs (Level 3) | Interest Rate Lock Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	2,993	1,809
Significant Unobservable Inputs (Level 3) | Forward Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Significant Unobservable Inputs (Level 3) | Commercial	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	440	7,229
Significant Unobservable Inputs (Level 3) | Commercial Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	6,585	7,749
Significant Unobservable Inputs (Level 3) | Agricultural and Agricultural Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	4,926	13,062
Significant Unobservable Inputs (Level 3) | Residential Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	2,764	3,396
Significant Unobservable Inputs (Level 3) | Consumer	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	2,613	1,763
Carrying Amount	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	88,628	125,270
Time deposits in other financial institutions	3,355	'
Trading securities	0	1,801
Securities available for sale	1,400,756	1,633,902
Held to maturity securities	257,927	237,498
Other investments	18,755	21,843
Loans held for sale	54,862	46,665
Loans, net	3,544,669	3,461,016
Derivative assets	152	0
Short term borrowings	256,250	408,756
Other borrowings	334,916	350,109
Derivative liabilities	3,467	3,697
Carrying Amount | Demand Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	1,195,457	1,238,581
Carrying Amount | Savings Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	2,582,166	2,535,242
Carrying Amount | Time Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	885,741	892,676
Carrying Amount | Interest Rate Lock Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	2,993	1,809
Carrying Amount | Forward Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	238	1,206
Derivative liabilities	307	133
Carrying Amount | Commercial	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	974,144	936,305
Carrying Amount | Commercial Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	1,548,517	1,516,352
Carrying Amount | Agricultural and Agricultural Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	368,168	374,203
Carrying Amount | Residential Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	362,769	347,266
Carrying Amount | Consumer	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	291,071	286,890
Estimated Fair Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	88,628	125,270
Time deposits in other financial institutions	3,355	'
Trading securities	0	1,801
Securities available for sale	1,400,756	1,633,902
Held to maturity securities	263,169	237,437
Other investments	18,755	21,843
Loans held for sale	54,862	46,665
Loans, net	3,521,366	3,429,861
Derivative assets	152	0
Short term borrowings	256,250	408,756
Other borrowings	339,930	355,923
Derivative liabilities	3,467	3,697
Estimated Fair Value | Demand Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	1,195,457	1,238,581
Estimated Fair Value | Savings Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	2,582,166	2,535,242
Estimated Fair Value | Time Deposits	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Deposits	885,741	892,676
Estimated Fair Value | Interest Rate Lock Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative assets	2,993	1,809
Estimated Fair Value | Forward Commitments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative liabilities	307	133
Estimated Fair Value | Commercial	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	963,353	930,501
Estimated Fair Value | Commercial Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	1,548,106	1,512,773
Estimated Fair Value | Agricultural and Agricultural Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	369,517	378,086
Estimated Fair Value | Residential Real Estate	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	351,492	335,362
Estimated Fair Value | Consumer	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Loans, net	$288,898	$273,139

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'
Net interest income	$48,612	$38,667	'
Provision for loan and lease losses	6,331	637	'
Total noninterest income	18,727	25,966	'
Total noninterest expense	52,415	46,245	'
INCOME BEFORE INCOME TAXES	8,593	17,751	'
Segment Assets	5,747,102	4,900,558	5,923,716
Average Loans	3,571,127	2,876,960	'
Community and Other Banking	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Net interest income	47,855	38,324	'
Provision for loan and lease losses	6,331	637	'
Total noninterest income	11,403	12,891	'
Total noninterest expense	42,214	34,018	'
INCOME BEFORE INCOME TAXES	10,713	16,560	'
Segment Assets	5,669,512	4,787,006	'
Average Loans	3,528,356	2,784,785	'
Retail Mortgage Banking	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Net interest income	757	343	'
Provision for loan and lease losses	0	0	'
Total noninterest income	7,324	13,075	'
Total noninterest expense	10,201	12,227	'
INCOME BEFORE INCOME TAXES	-2,120	1,191	'
Segment Assets	77,590	113,552	'
Average Loans	$42,771	$92,175	'