$HTLF
HEARTLAND FINANCIAL USA INC Stock $htlf

$htlf Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000092011222000054 Filed on February 24, 2022

Income Statement

Concept	2021 Q4	2021 Q3	2021
Revenue		$149.2M	$588.8M
YoY Change		13.91%	9.72%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.600M	$6.600M	$26.89M
YoY Change	0.0%	0.0%	-1.45%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$6.644M	$28.20M
YoY Change		-21.56%	-37.17%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$59.90M	$69.17M	$275.3M
YoY Change	22.49%	12.22%	58.2%
Income Tax	$10.27M	$13.25M	$55.34M
% Of Pretax Income	17.15%	19.15%	20.1%
Net Earnings	$49.58M	$55.92M	$219.9M
YoY Change	24.54%	16.61%	59.44%
Net Earnings / Revenue		37.49%	37.35%
Basic Earnings Per Share	$1.12	$1.27	$5.01
Diluted Earnings Per Share	$1.12	$1.27	$5.00
COMMON SHARES
Basic Shares Outstanding	42.31M shares	42.30M shares	42.26M shares
Diluted Shares Outstanding	42.48M shares	42.42M shares	42.41M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments	$7.966B	$7.777B
YoY Change	23.2%	47.23%
Cash & Equivalents	$435.6M	$327.4M
Short-Term Investments	$7.530B	$7.450B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$205.0M	$219.3M	$228.0M
YoY Change	-6.65%	9.94%	-5.39%
Goodwill	$576.0M	$576.0M
YoY Change	0.0%	29.06%
Intangibles	$39.88M	$41.51M
YoY Change	-17.67%	-10.3%
Long-Term Investments
YoY Change
Other Assets	$11.00M	$3.000M	$11.00M
YoY Change	83.33%	200.0%	83.33%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$19.27B	$19.00B	$19.28B
YoY Change	7.63%	21.67%	7.63%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$171.0M	$164.0M	$171.0M
YoY Change	-23.66%	-19.21%	-23.66%
Deferred Revenue
YoY Change
Short-Term Debt	$131.6M	$265.6M	$132.0M
YoY Change	-21.61%	-13.4%	-21.43%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$171.0M	$164.0M	$171.0M
YoY Change	-23.66%	-19.21%	-23.66%
LONG-TERM LIABILITIES
Long-Term Debt	$371.0M	$371.0M	$371.0M
YoY Change	-18.64%	-29.06%	-18.64%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$371.0M	$371.0M	$371.0M
YoY Change	-18.64%	-29.06%	-18.64%
TOTAL LIABILITIES
Total Short-Term Liabilities	$171.0M	$164.0M	$171.0M
Total Long-Term Liabilities	$371.0M	$371.0M	$371.0M
Total Liabilities	$17.09B	$16.82B	$17.09B
YoY Change	7.98%	21.9%	7.98%
SHAREHOLDERS EQUITY
Retained Earnings	$963.0M	$926.8M
YoY Change	21.65%	21.76%
Common Stock	$1.114B	$1.111B
YoY Change	0.91%	25.66%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.182B	$2.172B	$2.182B
YoY Change
Total Liabilities & Shareholders Equity	$19.27B	$19.00B	$19.28B
YoY Change	7.63%	21.67%	7.63%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2021
OPERATING ACTIVITIES
Net Income	$49.58M	$55.92M	$219.9M
YoY Change	24.54%	16.61%	59.44%
Depreciation, Depletion And Amortization	$6.600M	$6.600M	$26.89M
YoY Change	0.0%	0.0%	-1.45%
Cash From Operating Activities	$93.10M	$79.30M	$326.0M
YoY Change	-13.31%	52.79%	71.27%
INVESTING ACTIVITIES
Capital Expenditures	-$1.500M	-$4.200M	$17.20M
YoY Change	-71.7%	-23.64%	-7.22%
Acquisitions
YoY Change
Other Investing Activities	-$232.2M	-$832.4M	-$1.508B
YoY Change	-1490.42%	27.36%	-33.95%
Cash From Investing Activities	-$233.7M	-$836.5M	-$1.525B
YoY Change	-2168.14%	26.92%	-33.73%
FINANCING ACTIVITIES
Cash Dividend Paid			$48.56M
YoY Change			52.19%
Common Stock Issuance & Retirement, Net			$2.925M
YoY Change			-197.37%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	248.8M	635.5M	$1.297B
YoY Change	-321.35%	30.98%	-37.36%
NET CHANGE
Cash From Operating Activities	93.10M	79.30M	$326.0M
Cash From Investing Activities	-233.7M	-836.5M	-$1.525B
Cash From Financing Activities	248.8M	635.5M	$1.297B
Net Change In Cash	108.2M	-121.7M	$97.70M
YoY Change	1617.46%	-0.25%	-339.27%
FREE CASH FLOW
Cash From Operating Activities	$93.10M	$79.30M	$326.0M
Capital Expenditures	-$1.500M	-$4.200M	$17.20M
Free Cash Flow	$94.60M	$83.50M	$308.8M
YoY Change	-16.06%	45.47%	79.74%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000920112
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
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CY2012Q1	htlf	Stockholders Equity Common Stock Rights Distribution Date Subsequent To Qualifying Event StockholdersEquityCommonStockRightsDistributionDateSubsequentToQualifyingEvent	P10D
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CY2021Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-15393
CY2021	dei	Entity Registrant Name EntityRegistrantName	HEARTLAND FINANCIAL USA, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	42-1405748
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1398 Central Avenue,
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Dubuque
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	IA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	52001
CY2021	dei	Local Phone Number LocalPhoneNumber	589-2100
CY2021	dei	City Area Code CityAreaCode	(563)
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CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
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CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	240114000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	202668000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	200341000	USD
CY2021	us-gaap	Occupancy Net OccupancyNet	29965000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	26554000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	25429000	USD
CY2021	us-gaap	Equipment Expense EquipmentExpense	13323000	USD
CY2020	us-gaap	Equipment Expense EquipmentExpense	12514000	USD
CY2019	us-gaap	Equipment Expense EquipmentExpense	12013000	USD
CY2021	us-gaap	Professional Fees ProfessionalFees	64600000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	54068000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	47697000	USD
CY2021	us-gaap	Advertising Expense AdvertisingExpense	7257000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	5235000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	9825000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9395000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10670000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11972000	USD
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-990000	USD
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-1340000	USD
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-1035000	USD
CY2021	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	-588000	USD
CY2020	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	-5101000	USD
CY2019	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	19422000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	5331000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	5381000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	6580000	USD
CY2021	htlf	Partnership Investment In Tax Credit Projects PartnershipInvestmentInTaxCreditProjects	6303000	USD
CY2020	htlf	Partnership Investment In Tax Credit Projects PartnershipInvestmentInTaxCreditProjects	3801000	USD
CY2019	htlf	Partnership Investment In Tax Credit Projects PartnershipInvestmentInTaxCreditProjects	8030000	USD
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	53946000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	43631000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	45661000	USD
CY2021	us-gaap	Noninterest Expense NoninterestExpense	431812000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	370963000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	349161000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	275258000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	173991000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	184119000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55335000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36053000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34990000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	219923000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	137938000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	149129000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	8050000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4451000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	211873000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	133487000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	149129000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.01
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.58
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.14
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.00
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.57
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.14
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.96
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.68
CY2021	us-gaap	Net Income Loss NetIncomeLoss	219923000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	137938000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	149129000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-103807000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	109972000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	52557000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	5910000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	7592000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	7659000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-28573000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	26578000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	11429000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-81144000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	75802000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	33469000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	5037000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-904000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-3639000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	1601000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	1820000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-170000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	763000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-567000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-723000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	2673000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-2157000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-2746000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-78471000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	73645000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	30723000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	141452000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	211583000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	179852000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1325175000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	179852000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.68
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	24607000	USD
CY2019	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	2226779	shares
CY2019	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	92919000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	6070000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1578137000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1578137000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	211583000	USD
CY2020	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	386.94
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	4451000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	29468000	USD
CY2020	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	11500	shares
CY2020	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	5389584	shares
CY2020	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	220206000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7410000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2079231000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	2079231000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	141452000	USD
CY2021	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	700.00
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	8050000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.96
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	40509000	USD
CY2021	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	181402	shares
CY2021	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1311000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	8743000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2182178000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	219923000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	137938000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	149129000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	26894000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	27289000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	30797000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-17575000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	67066000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16657000	USD
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-52145000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-16042000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-20326000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	11543000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10910000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-414000	USD
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	5910000	USD
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	7793000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	7659000	USD
CY2021	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	58000	USD
CY2020	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	640000	USD
CY2019	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	525000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8743000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	7410000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	6070000	USD
CY2021	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-2222000	USD
CY2020	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-5101000	USD
CY2019	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	8394000	USD
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	466071000	USD
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	621507000	USD
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	384603000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	521463000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	615439000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	396290000	USD
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	19083000	USD
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	25133000	USD
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	14661000	USD
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1590000	USD
CY2020	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	9971000	USD
CY2019	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-1301000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	1102000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	3504000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	8566000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-497000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-2915000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	421000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	375000	USD
CY2021	htlf	Paymentsto Acquire Mortgage Servicing Rights Msr Operating Activities PaymentstoAcquireMortgageServicingRightsMSROperatingActivities	1522000	USD
CY2020	htlf	Paymentsto Acquire Mortgage Servicing Rights Msr Operating Activities PaymentstoAcquireMortgageServicingRightsMSROperatingActivities	3484000	USD
CY2019	htlf	Paymentsto Acquire Mortgage Servicing Rights Msr Operating Activities PaymentstoAcquireMortgageServicingRightsMSROperatingActivities	1011000	USD
CY2021	htlf	Servicing Rights Impairment Recovery ServicingRightsImpairmentRecovery	-1088000	USD
CY2020	htlf	Servicing Rights Impairment Recovery ServicingRightsImpairmentRecovery	1778000	USD
CY2019	htlf	Servicing Rights Impairment Recovery ServicingRightsImpairmentRecovery	911000	USD
CY2021	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	-312000	USD
CY2020	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	93000	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	-266000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2712000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1745000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	34786000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	326037000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	190368000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	161174000	USD
CY2021	us-gaap	Payments For Deposits With Other Institutions PaymentsForDepositsWithOtherInstitutions	10000	USD
CY2020	us-gaap	Payments For Deposits With Other Institutions PaymentsForDepositsWithOtherInstitutions	0	USD
CY2019	us-gaap	Payments For Deposits With Other Institutions PaymentsForDepositsWithOtherInstitutions	258000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1475598000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1097378000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1628467000	USD
CY2021	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	USD
CY2020	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	1056000	USD
CY2019	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	4858000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	8506000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	10325000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1059292000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	567884000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	402946000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	5659000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	3458000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	3158000	USD
CY2021	htlf	Proceeds From Maturity And Principal Paydowns In Interestbearing Depositsin Banks ProceedsFromMaturityAndPrincipalPaydownsInInterestbearingDepositsinBanks	245000	USD
CY2020	htlf	Proceeds From Maturity And Principal Paydowns In Interestbearing Depositsin Banks ProceedsFromMaturityAndPrincipalPaydownsInInterestbearingDepositsinBanks	585000	USD
CY2019	htlf	Proceeds From Maturity And Principal Paydowns In Interestbearing Depositsin Banks ProceedsFromMaturityAndPrincipalPaydownsInInterestbearingDepositsinBanks	1216000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	4094661000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	4119814000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2577106000	USD
CY2021	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	12172000	USD
CY2020	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	49228000	USD
CY2019	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	6446000	USD
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-50437000	USD
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	444146000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	90749000	USD
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	288000	USD
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	292000	USD
CY2019	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	28000	USD
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	606000	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	1402000	USD
CY2021	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	0	USD
CY2020	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	0	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	35017000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17203000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	18542000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17928000	USD
CY2021	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2020	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	641315000	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	76071000	USD
CY2021	htlf	Cash Divested For Divestiture Of Businesses CashDivestedForDivestitureOfBusinesses	15682000	USD
CY2020	htlf	Cash Divested For Divestiture Of Businesses CashDivestedForDivestitureOfBusinesses	0	USD
CY2019	htlf	Cash Divested For Divestiture Of Businesses CashDivestedForDivestitureOfBusinesses	49264000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	10489000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5895000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	903000	USD
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8338000	USD
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	3913000	USD
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8304000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1525100000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2301426000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-573970000	USD
CY2021	htlf	Netincreaseindemanddeposits Netincreaseindemanddeposits	-813600000	USD
CY2020	htlf	Netincreaseindemanddeposits Netincreaseindemanddeposits	-1367903000	USD
CY2019	htlf	Netincreaseindemanddeposits Netincreaseindemanddeposits	-51178000	USD
CY2021	us-gaap	Increase Decrease In Savings Deposits IncreaseDecreaseInSavingsDeposits	893569000	USD
CY2020	us-gaap	Increase Decrease In Savings Deposits IncreaseDecreaseInSavingsDeposits	735968000	USD
CY2019	us-gaap	Increase Decrease In Savings Deposits IncreaseDecreaseInSavingsDeposits	680641000	USD
CY2021	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-242321000	USD
CY2020	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-254540000	USD
CY2019	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-81251000	USD
CY2021	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	36275000	USD
CY2020	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	40137000	USD
CY2019	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	51314000	USD
CY2021	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	141700000	USD
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	516545000	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	512085000	USD
CY2021	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	141700000	USD
CY2020	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	597742000	USD
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	546725000	USD
CY2021	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	147614000	USD
CY2020	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	314397000	USD
CY2019	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	50000	USD
CY2021	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	233794000	USD
CY2020	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	134244000	USD
CY2019	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	20693000	USD
CY2021	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	110705000	USD
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2021	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	0	USD
CY2020	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	0	USD
CY2019	us-gaap	Payments For Repurchase Of Warrants PaymentsForRepurchaseOfWarrants	2125000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2925000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3004000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	661000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	48559000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	31906000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	24607000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1296759000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2070227000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	517900000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	97696000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-40831000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	105104000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	337903000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	378734000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	273630000	USD
CY2021Q4	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	723300000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	435599000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	337903000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	378734000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	49914000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	33402000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	37609000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	28703000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	47798000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	80238000	USD
CY2021	htlf	Loans Transferred To Oreo LoansTransferredToOreo	2807000	USD
CY2020	htlf	Loans Transferred To Oreo LoansTransferredToOreo	3511000	USD
CY2019	htlf	Loans Transferred To Oreo LoansTransferredToOreo	8066000	USD
CY2021	htlf	Transferof Assets Heldforsaleto Property Plantand Equipment Net TransferofAssetsHeldforsaletoPropertyPlantandEquipmentNet	396000	USD
CY2020	htlf	Transferof Assets Heldforsaleto Property Plantand Equipment Net TransferofAssetsHeldforsaletoPropertyPlantandEquipmentNet	855000	USD
CY2019	htlf	Transferof Assets Heldforsaleto Property Plantand Equipment Net TransferofAssetsHeldforsaletoPropertyPlantandEquipmentNet	4306000	USD
CY2021	htlf	Purchases Of Available For Sale Securities Accrued Not Paid PurchasesOfAvailableForSaleSecuritiesAccruedNotPaid	0	USD
CY2020Q4	us-gaap	Principal Amount Outstanding On Loans Managed And Securitized PrincipalAmountOutstandingOnLoansManagedAndSecuritized	743300000	USD
CY2020	htlf	Purchases Of Available For Sale Securities Accrued Not Paid PurchasesOfAvailableForSaleSecuritiesAccruedNotPaid	0	USD
CY2019	htlf	Purchases Of Available For Sale Securities Accrued Not Paid PurchasesOfAvailableForSaleSecuritiesAccruedNotPaid	11106000	USD
CY2021	htlf	Transfer Of Property Plant And Equipment Net To Assets Held For Sale TransferOfPropertyPlantAndEquipmentNetToAssetsHeldForSale	12662000	USD
CY2020	htlf	Transfer Of Property Plant And Equipment Net To Assets Held For Sale TransferOfPropertyPlantAndEquipmentNetToAssetsHeldForSale	8134000	USD
CY2019	htlf	Transfer Of Property Plant And Equipment Net To Assets Held For Sale TransferOfPropertyPlantAndEquipmentNetToAssetsHeldForSale	4655000	USD
CY2021	htlf	Sale Of Available For Sale Securities Noncash SaleOfAvailableForSaleSecuritiesNoncash	0	USD
CY2020	htlf	Sale Of Available For Sale Securities Noncash SaleOfAvailableForSaleSecuritiesNoncash	0	USD
CY2019	htlf	Sale Of Available For Sale Securities Noncash SaleOfAvailableForSaleSecuritiesNoncash	148030000	USD
CY2021	htlf	Debt Securities Held To Maturity Trasfer Amount To Debt Securities Available For Sale DebtSecuritiesHeldToMaturityTrasferAmountToDebtSecuritiesAvailableForSale	0	USD
CY2020	htlf	Debt Securities Held To Maturity Trasfer Amount To Debt Securities Available For Sale DebtSecuritiesHeldToMaturityTrasferAmountToDebtSecuritiesAvailableForSale	462000	USD
CY2019	htlf	Debt Securities Held To Maturity Trasfer Amount To Debt Securities Available For Sale DebtSecuritiesHeldToMaturityTrasferAmountToDebtSecuritiesAvailableForSale	0	USD
CY2021	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2020	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
CY2019	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	32111000	USD
CY2021	htlf	Transfer Of Deposits To Heldforsale TransferOfDepositsToHeldforsale	0	USD
CY2020	htlf	Transfer Of Deposits To Heldforsale TransferOfDepositsToHeldforsale	0	USD
CY2019	htlf	Transfer Of Deposits To Heldforsale TransferOfDepositsToHeldforsale	76968000	USD
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2013000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2013000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	0	USD
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	USD
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	217202000	USD
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	92258000	USD
CY2021Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	0	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021	htlf	Threshold Periodof Consecutive Paymentsto Removefrom Nonaccrual Status ThresholdPeriodofConsecutivePaymentstoRemovefromNonaccrualStatus	P6M
CY2021	htlf	Threshold Period After Modification Holding Current Statustobe Consideredin Compliancewith Modified Terms ThresholdPeriodAfterModificationHoldingCurrentStatustobeConsideredinCompliancewithModifiedTerms	P30D
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	219923000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	137938000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	149129000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	8050000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4451000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	211873000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	133487000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	149129000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42260000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37269000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	35991000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	151000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	88000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	71000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42411000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	37357000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36062000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.01
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.58
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.14
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.00
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.57
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.14
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020Q4	htlf	Reserve Requirement Federal Reserve Bank ReserveRequirementFederalReserveBank	0	USD
CY2021Q4	htlf	Reserve Requirement Federal Reserve Bank ReserveRequirementFederalReserveBank	0	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	7515550000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	78269000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	84233000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	7509586000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	20788000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	20788000	USD
CY2021Q4	htlf	Marketable Securities Amortized Cost Basis MarketableSecuritiesAmortizedCostBasis	7536338000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	78269000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	84233000	USD
CY2021Q4	us-gaap	Marketable Securities MarketableSecurities	7530374000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	6004596000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	127866000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	24116000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	6108346000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	19629000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	19629000	USD
CY2020Q4	htlf	Marketable Securities Amortized Cost Basis MarketableSecuritiesAmortizedCostBasis	6024225000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	127866000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	24116000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	6127975000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	84709000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	9430000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	94139000	USD
CY2021Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	88890000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	11151000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	100041000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	51000	USD
CY2021Q4	htlf	Interest Receivable Debt Securities InterestReceivableDebtSecurities	29400000	USD
CY2020Q4	htlf	Interest Receivable Debt Securities InterestReceivableDebtSecurities	20800000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	2455000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2481000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	19058000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	19897000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	173467000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	175188000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	2048314000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	2084899000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	2243294000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	2282465000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	5272256000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	5227121000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	20788000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	20788000	USD
CY2021Q4	us-gaap	Debt Securities Trading And Equity Securities Fv Ni Cost DebtSecuritiesTradingAndEquitySecuritiesFvNiCost	7536338000	USD
CY2021Q4	us-gaap	Trading Securities TradingSecurities	7530374000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	5096000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	5112000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	38787000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	40561000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	34824000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	39871000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	6002000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	8595000	USD
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	84709000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	94139000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1475598000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1097378000	USD
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CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	11892000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	13208000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	11774000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	5982000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	5616000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	4115000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	3226422000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	57123000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	242	bankLocation
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	815822000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	27110000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	86	bankLocation
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	4042244000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	84233000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	328	bankLocation
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1672530000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	18373000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	127	bankLocation
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	508436000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	5743000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	103	bankLocation
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	2180966000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	24116000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	230	bankLocation
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	0	USD
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	0	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	22600000	USD
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	19500000	USD
CY2021	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	0	USD
CY2020	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	0	USD
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	9954572000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10023051000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	110088000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131606000	USD
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	9844484000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	9891445000	USD
CY2021Q4	htlf	Financing Receivable Accrued Interest FinancingReceivableAccruedInterest	35300000	USD
CY2020Q4	htlf	Financing Receivable Accrued Interest FinancingReceivableAccruedInterest	42400000	USD
CY2021Q4	htlf	Financing Receivable Individually Evaluated For Impairment Nonaccrual FinancingReceivableIndividuallyEvaluatedForImpairmentNonaccrual	500000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	7646000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	102442000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	110088000	USD
CY2021Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	49288000	USD
CY2021Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	9905284000	USD
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	9954572000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	9426000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	122180000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131606000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	57230000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	9965821000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10023051000	USD
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	10400000	USD
CY2020Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	6200000	USD
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	loan
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	7850000	USD
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	7850000	USD
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3	loan
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	112000	USD
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	118000	USD
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	loan
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	loan
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	232000	USD
CY2020Q4	htlf	Internal Credit Quality Indicator Doubtful Numberof Loans InternalCreditQualityIndicatorDoubtfulNumberofLoans	0	loan
CY2021Q4	htlf	Internal Credit Quality Indicator Doubtful Numberof Loans InternalCreditQualityIndicatorDoubtfulNumberofLoans	0	loan
CY2021Q4	htlf	Internal Credit Quality Indicator Loss Numberof Loans InternalCreditQualityIndicatorLossNumberofLoans	0	loan
CY2020Q4	htlf	Internal Credit Quality Indicator Loss Numberof Loans InternalCreditQualityIndicatorLossNumberofLoans	0	loan
CY2021Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	3398505000	USD
CY2021Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	1480531000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	1234564000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	751481000	USD
CY2021Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	586363000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10023051000	USD
CY2021Q4	htlf	Financing Receivable Recorded Investment30to89 Days Past Due Percentage FinancingReceivableRecordedInvestment30to89DaysPastDuePercentage	0.0007
CY2021Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	1134111000	USD
CY2021Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	1369017000	USD
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	9954572000	USD
CY2020Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	3119680000	USD
CY2020Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	1842640000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	1287023000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	842221000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	485454000	USD
CY2020Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	1254784000	USD
CY2020Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	1191249000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	10023051000	USD
CY2021Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	1000000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	69369000	USD
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	9954572000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	87386000	USD
CY2021Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	25500000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	32500000	USD
CY2021	us-gaap	Financing Receivable Purchased With Credit Deterioration Amount At Purchase Price FinancingReceivablePurchasedWithCreditDeteriorationAmountAtPurchasePrice	393211000	USD
CY2021	us-gaap	Financing Receivable Purchased With Credit Deterioration Allowance For Credit Loss At Acquisition Date FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate	12313000	USD
CY2021	us-gaap	Financing Receivable Purchased With Credit Deterioration Discount Premium FinancingReceivablePurchasedWithCreditDeteriorationDiscountPremium	2978000	USD
CY2021	htlf	Financing Receivable Purchased With Credit Deterioration Book Value FinancingReceivablePurchasedWithCreditDeteriorationBookValue	377920000	USD
CY2020Q4	htlf	Financing Receivables Related Parties FinancingReceivablesRelatedParties	215449000	USD
CY2019Q4	htlf	Financing Receivables Related Parties FinancingReceivablesRelatedParties	184568000	USD
CY2021	htlf	Financing Receivable Related Parties Additions FinancingReceivableRelatedPartiesAdditions	69204000	USD
CY2020	htlf	Financing Receivable Related Parties Additions FinancingReceivableRelatedPartiesAdditions	73412000	USD
CY2021	htlf	Financing Receivable Related Parties Proceeds FinancingReceivableRelatedPartiesProceeds	90776000	USD
CY2020	htlf	Financing Receivable Related Parties Proceeds FinancingReceivableRelatedPartiesProceeds	42531000	USD
CY2021Q4	htlf	Financing Receivables Related Parties FinancingReceivablesRelatedParties	193877000	USD
CY2020Q4	htlf	Financing Receivables Related Parties FinancingReceivablesRelatedParties	215449000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131606000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	70395000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	61963000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	61963000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	12313000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-17706000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	65745000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	16657000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4931000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3804000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	5365000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	8743000	USD
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	32722000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	13590000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	110088000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131606000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	70395000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131606000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	8743000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4931000	USD
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-17706000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	110088000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	70395000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	131606000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	15280000	USD
CY2019Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	248000	USD
CY2021	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	182000	USD
CY2020	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	1428000	USD
CY2021Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	15462000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	15280000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	309582000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	324100000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	104583000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	104505000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	204999000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	219595000	USD
CY2021	us-gaap	Depreciation Depreciation	13500000	USD
CY2020	us-gaap	Depreciation Depreciation	11800000	USD
CY2019	us-gaap	Depreciation Depreciation	12000000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	576000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	576000000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	122206000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	82328000	USD
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	39878000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	120684000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	72249000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	48435000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9510000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	8273000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	6855000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5743000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	8810000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	687000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	39878000	USD
CY2021Q4	htlf	Mortgage Loans Serviced For Others Amount MortgageLoansServicedForOthersAmount	723300000	USD
CY2020Q4	htlf	Mortgage Loans Serviced For Others Amount MortgageLoansServicedForOthersAmount	743300000	USD
CY2021Q4	us-gaap	Escrow Deposit EscrowDeposit	4500000	USD
CY2020Q4	us-gaap	Escrow Deposit EscrowDeposit	5700000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	795813000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	146326000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	39435000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	17490000	USD
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	15458000	USD
CY2021Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	9498000	USD
CY2021Q4	us-gaap	Time Deposits TimeDeposits	1024020000	USD
CY2021Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	605200000	USD
CY2020Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	774200000	USD
CY2021Q4	htlf	Time Depositsover250000 TimeDepositsover250000	333700000	USD
CY2020Q4	htlf	Time Depositsover250000 TimeDepositsover250000	423300000	USD
CY2021	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	9063000	USD
CY2020	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	16560000	USD
CY2019	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	47069000	USD
CY2021	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	3463000	USD
CY2020	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	8244000	USD
CY2019	us-gaap	Interest Expense Time Deposits100000 Or More InterestExpenseTimeDeposits100000OrMore	9344000	USD
CY2021	us-gaap	Interest Expense Time Deposits Less Than100000 InterestExpenseTimeDepositsLessThan100000	2271000	USD
CY2020	us-gaap	Interest Expense Time Deposits Less Than100000 InterestExpenseTimeDepositsLessThan100000	5483000	USD
CY2019	us-gaap	Interest Expense Time Deposits Less Than100000 InterestExpenseTimeDepositsLessThan100000	7321000	USD
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	14797000	USD
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	30287000	USD
CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	63734000	USD
CY2021Q4	us-gaap	Deposit Liability Uninsured DepositLiabilityUninsured	8210000000	USD
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	131597000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	167872000	USD
CY2021	htlf	Number Of Credit Lines NumberOfCreditLines	1	creditLine
CY2021	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	299457000	USD
CY2020	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	380360000	USD
CY2019	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	226096000	USD
CY2021	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	173556000	USD
CY2020	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	157348000	USD
CY2019	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	128098000	USD
CY2021	htlf	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0026
CY2020	htlf	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0039
CY2019	htlf	Short Term Debt Weighted Average Interest Rate During Period ShortTermDebtWeightedAverageInterestRateDuringPeriod	0.0138
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0019
CY2020Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0018
CY2019Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0121
CY2021Q4	us-gaap	Debt Instrument Unused Borrowing Capacity Amount DebtInstrumentUnusedBorrowingCapacityAmount	895600000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	372072000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	457042000	USD
CY2021Q4	htlf	Federal Home Loan Bank Advances General Debt Obligations Disclosures Required Collateral Amount Of Fhlb Stock FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresRequiredCollateralAmountOfFhlbStock	8500000	USD
CY2020Q4	htlf	Federal Home Loan Bank Advances General Debt Obligations Disclosures Required Collateral Amount Of Fhlb Stock FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresRequiredCollateralAmountOfFhlbStock	13600000	USD
CY2021Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt	4430000000	USD
CY2020Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Loans Receivable Pledged For Federal Home Loan Bank Debt PledgedFinancialInstrumentsNotSeparatelyReportedLoansReceivablePledgedForFederalHomeLoanBankDebt	4960000000	USD
CY2021Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	913500000	USD
CY2021	htlf	Number Of Wholly Owned Trust Subsidiaries That Issue Preferred Securities NumberOfWhollyOwnedTrustSubsidiariesThatIssuePreferredSecurities	15	subsidiary
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	44000	USD
CY2021Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	100000000	USD
CY2021Q4	htlf	Subordinated Notes Qualifiedas Tier Two Capital SubordinatedNotesQualifiedasTierTwoCapital	222300000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	80000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	74572000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	297418000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	372072000	USD
CY2021Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2020Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	3800000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	1400000	USD
CY2021	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-733000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	32440000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	34513000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	24106000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11352000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12450000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11298000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	43792000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	46963000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	35404000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8938000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8498000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	760000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2605000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2412000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1174000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	11543000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10910000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-414000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55335000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36053000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34990000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1715000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	367000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	1130000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	28149000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	33393000	USD
CY2021Q4	htlf	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Deferred Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsDeferredCompensation	11299000	USD
CY2020Q4	htlf	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Deferred Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsDeferredCompensation	9623000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	18874000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	17585000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	958000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	467000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense DeferredTaxAssetsTaxDeferredExpense	1691000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense DeferredTaxAssetsTaxDeferredExpense	5006000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5673000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5563000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	68726000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	72767000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15120000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	12828000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	53606000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	59939000	USD
CY2021Q4	htlf	Deferred Tax Liabilities Unrealized Losses On Available For Sale Securities Gross DeferredTaxLiabilitiesUnrealizedLossesOnAvailableForSaleSecuritiesGross	0	USD
CY2020Q4	htlf	Deferred Tax Liabilities Unrealized Losses On Available For Sale Securities Gross DeferredTaxLiabilitiesUnrealizedLossesOnAvailableForSaleSecuritiesGross	26858000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	1232000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	635000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10502000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	8311000	USD
CY2021Q4	htlf	Deferred Tax Liabilities Purchase Accounting DeferredTaxLiabilitiesPurchaseAccounting	7977000	USD
CY2020Q4	htlf	Deferred Tax Liabilities Purchase Accounting DeferredTaxLiabilitiesPurchaseAccounting	5326000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	2078000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	2675000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	5164000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	4107000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2250000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3905000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	29203000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	51817000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	24403000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	8122000	USD
CY2021Q4	htlf	Operating Loss Carryforwards Limitations On Use Annual Amount OperatingLossCarryforwardsLimitationsOnUseAnnualAmount	7300000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	14300000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	11800000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	57804000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	36538000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	38665000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	5504000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	4011000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3281000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11026000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7930000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8509000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	7613000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	4521000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	6860000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-440000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-374000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1648000	USD
CY2021	htlf	Effective Income Tax Rate Reconciliation Sharebased Compensation Federal Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationFederalExcessTaxBenefitAmount	270000	USD
CY2020	htlf	Effective Income Tax Rate Reconciliation Sharebased Compensation Federal Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationFederalExcessTaxBenefitAmount	-80000	USD
CY2019	htlf	Effective Income Tax Rate Reconciliation Sharebased Compensation Federal Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationSharebasedCompensationFederalExcessTaxBenefitAmount	229000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	332000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	411000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-166000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55335000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	36053000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34990000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.201
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.207
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.190
CY2021Q4	htlf	Investment In Low Income Housing InvestmentInLowIncomeHousing	5100000	USD
CY2020Q4	htlf	Investment In Low Income Housing InvestmentInLowIncomeHousing	5600000	USD
CY2019Q4	htlf	Investment In Low Income Housing InvestmentInLowIncomeHousing	6100000	USD
CY2020Q4	htlf	Tax Credits New Markets TaxCreditsNewMarkets	300000	USD
CY2021Q4	htlf	Tax Credits New Markets TaxCreditsNewMarkets	300000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	724000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	87000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	702000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	79000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2020	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03
CY2021	htlf	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	5100000	USD
CY2020	htlf	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	4100000	USD
CY2019	htlf	Defined Contribution Plan Contributions By Employer DefinedContributionPlanContributionsByEmployer	3900000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5100000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4800000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4800000	USD
CY2021Q4	us-gaap	Assets Sold Under Agreements To Repurchase Repurchase Liability AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability	0	USD
CY2020Q4	us-gaap	Assets Sold Under Agreements To Repurchase Repurchase Liability AssetsSoldUnderAgreementsToRepurchaseRepurchaseLiability	0	USD
CY2021	htlf	Assets Soldunder Agreementsto Repurchase Numberof Requests AssetsSoldunderAgreementstoRepurchaseNumberofRequests	0	request
CY2020	htlf	Assets Soldunder Agreementsto Repurchase Numberof Requests AssetsSoldunderAgreementstoRepurchaseNumberofRequests	0	request
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	312000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	93000	USD
CY2021Q4	us-gaap	Capital Capital	2040500000	USD
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1590
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	1026345000	USD
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1590111000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1239
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	769759000	USD
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2021Q4	htlf	Common Equity Tier1 Capital CommonEquityTier1Capital	1479406000	USD
CY2021Q4	htlf	Common Equity Tier1 Capitalto Risk Weighted Assets CommonEquityTier1CapitaltoRiskWeightedAssets	0.1153
CY2021Q4	htlf	Common Equity Tier1 Capital Requiredfor Capital Adequacy CommonEquityTier1CapitalRequiredforCapitalAdequacy	577319000	USD
CY2021Q4	htlf	Common Equity Tier1 Capital Requiredfor Capital Adequacyto Risk Weighted Assets CommonEquityTier1CapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.0450
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1590111000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0857
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	742155000	USD
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2020Q4	us-gaap	Capital Capital	1739048000	USD
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1471
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	945523000	USD
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	1401131000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1185
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	709142000	USD
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2020Q4	htlf	Common Equity Tier1 Capital CommonEquityTier1Capital	1290426000	USD
CY2020Q4	htlf	Common Equity Tier1 Capitalto Risk Weighted Assets CommonEquityTier1CapitaltoRiskWeightedAssets	0.1092
CY2020Q4	htlf	Common Equity Tier1 Capital Requiredfor Capital Adequacy CommonEquityTier1CapitalRequiredforCapitalAdequacy	531857000	USD
CY2020Q4	htlf	Common Equity Tier1 Capital Requiredfor Capital Adequacyto Risk Weighted Assets CommonEquityTier1CapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.0450
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	1401131000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0902
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	621275000	USD
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	87666000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	71085000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	75342000	USD
CY2021	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	3276000	USD
CY2020	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	2977000	USD
CY2019	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	4843000	USD
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	5910000	USD
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	7793000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	7659000	USD
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	58000	USD
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	640000	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	525000	USD
CY2021	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	20605000	USD
CY2020	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	28515000	USD
CY2019	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	15555000	USD
CY2021	htlf	Commercial Servicing Rights Csr Impairment Recovery CommercialServicingRightsCSRImpairmentRecovery	-1088000	USD
CY2020	htlf	Commercial Servicing Rights Csr Impairment Recovery CommercialServicingRightsCSRImpairmentRecovery	1778000	USD
CY2019	htlf	Commercial Servicing Rights Csr Impairment Recovery CommercialServicingRightsCSRImpairmentRecovery	911000	USD
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3762000	USD
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3554000	USD
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	3785000	USD
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6570000	USD
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	7505000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9410000	USD
CY2021	htlf	Noninterest Income Excluding Revenue From Contract With Customer NoninterestIncomeExcludingRevenueFromContractWithCustomer	41269000	USD
CY2020	htlf	Noninterest Income Excluding Revenue From Contract With Customer NoninterestIncomeExcludingRevenueFromContractWithCustomer	49206000	USD
CY2019	htlf	Noninterest Income Excluding Revenue From Contract With Customer NoninterestIncomeExcludingRevenueFromContractWithCustomer	40866000	USD
CY2021	us-gaap	Noninterest Income NoninterestIncome	128935000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	120291000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	116208000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	22630000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	21557000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	26125000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	25337000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	8013000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	6071000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	6031000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	47000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	72000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	145000	USD
CY2021	us-gaap	Lease Cost LeaseCost	8060000	USD
CY2021	us-gaap	Lease Cost LeaseCost	8060000	USD
CY2020	us-gaap	Lease Cost LeaseCost	6143000	USD
CY2019	us-gaap	Lease Cost LeaseCost	6176000	USD
CY2021	htlf	Operating Lease Liability Lease Modifications Noncash Reduction Of Right Of Use Assets OperatingLeaseLiabilityLeaseModificationsNoncashReductionOfRightOfUseAssets	1244000	USD
CY2020	htlf	Operating Lease Liability Lease Modifications Noncash Reduction Of Right Of Use Assets OperatingLeaseLiabilityLeaseModificationsNoncashReductionOfRightOfUseAssets	1037000	USD
CY2019	htlf	Operating Lease Liability Lease Modifications Noncash Reduction Of Right Of Use Assets OperatingLeaseLiabilityLeaseModificationsNoncashReductionOfRightOfUseAssets	1771000	USD
CY2021	htlf	Operating Lease Liability Lease Modifications Noncash Reduction Of Lease Liabilities OperatingLeaseLiabilityLeaseModificationsNoncashReductionOfLeaseLiabilities	0	USD
CY2020	htlf	Operating Lease Liability Lease Modifications Noncash Reduction Of Lease Liabilities OperatingLeaseLiabilityLeaseModificationsNoncashReductionOfLeaseLiabilities	389000	USD
CY2019	htlf	Operating Lease Liability Lease Modifications Noncash Reduction Of Lease Liabilities OperatingLeaseLiabilityLeaseModificationsNoncashReductionOfLeaseLiabilities	1789000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y11M26D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0269
CY2021	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	USD
CY2021	htlf	Number Of Impaired Leases NumberOfImpairedLeases	1	lease
CY2020	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	360000	USD
CY2019	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6595000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5154000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3484000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3363000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2940000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	6837000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	28373000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2248000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	26125000	USD
CY2021Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	137194000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	142543000	USD
CY2021Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	141218000	USD
CY2021Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	139605000	USD
CY2021Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-5313000	USD
CY2021Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-4534000	USD
CY2021Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-7080000	USD
CY2021Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-648000	USD
CY2021Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	142507000	USD
CY2021Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	147077000	USD
CY2021Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	148298000	USD
CY2021Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	140253000	USD
CY2021Q4	us-gaap	Noninterest Income NoninterestIncome	32730000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	32724000	USD
CY2021Q2	us-gaap	Noninterest Income NoninterestIncome	33164000	USD
CY2021Q1	us-gaap	Noninterest Income NoninterestIncome	30317000	USD
CY2021Q4	us-gaap	Noninterest Expense NoninterestExpense	115386000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	110627000	USD
CY2021Q2	us-gaap	Noninterest Expense NoninterestExpense	103376000	USD
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	50801000	USD
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
CY2021Q1	us-gaap	Noninterest Expense NoninterestExpense	102423000	USD
CY2021Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10271000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13250000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16481000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15333000	USD
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	49580000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	55924000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	61605000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	52814000	USD
CY2021Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2012000	USD
CY2021Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2013000	USD
CY2021Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2012000	USD
CY2021Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2013000	USD
CY2021Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	47568000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	53911000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	59593000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.27
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.41
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.20
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.12
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.27
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.41
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.20
CY2021Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
CY2021Q4	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	49.00
CY2021Q3	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	48.79
CY2021Q2	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	48.50
CY2021Q1	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	46.13
CY2021Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42309003	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42302780	shares
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42242893	shares
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42174092	shares
CY2021Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42479442	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42415993	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42359873	shares
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42335747	shares
CY2020Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	132575000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	122497000	USD
CY2020Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	124146000	USD
CY2020Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	112511000	USD
CY2020Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	17072000	USD
CY2020Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1678000	USD
CY2020Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	26796000	USD
CY2020Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	21520000	USD
CY2020Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	115503000	USD
CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	120819000	USD
CY2020Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	97350000	USD
CY2020Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	90991000	USD
CY2020Q4	us-gaap	Noninterest Income NoninterestIncome	32621000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	31216000	USD
CY2020Q2	us-gaap	Noninterest Income NoninterestIncome	30637000	USD
CY2020Q1	us-gaap	Noninterest Income NoninterestIncome	25817000	USD
CY2020Q4	us-gaap	Noninterest Expense NoninterestExpense	99269000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	90396000	USD
CY2020Q2	us-gaap	Noninterest Expense NoninterestExpense	90439000	USD
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	90859000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9046000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13681000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7417000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5909000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	39809000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	47958000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	30131000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	20040000	USD
CY2020Q4	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2014000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	2437000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2020Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2020Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	37795000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	45521000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	30131000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	20040000	USD
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.98
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.23
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.54
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2020Q4	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	46.77
CY2020Q3	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	46.11
CY2020Q2	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	44.42
CY2020Q1	htlf	Common Stock Book Value Per Share CommonStockBookValuePerShare	42.21
CY2020Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38420063	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36941110	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36880325	shares
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36820972	shares
CY2020Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38534082	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36995572	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36915630	shares
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36895591	shares
CY2021	dei	Auditor Name AuditorName	KPMG LLP
CY2021	dei	Auditor Location AuditorLocation	Des Moines, Iowa
CY2021	dei	Auditor Name AuditorName	KPMG LLP
CY2021	dei	Auditor Firm AuditorFirmId	185

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$HTLF
HEARTLAND FINANCIAL USA INC Stock $htlf

2021 Q4 Form 10-K Financial Statement

#000092011222000054 Filed on February 24, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HTLF HEARTLAND FINANCIAL USA INC Stock $htlf

2021 Q4 Form 10-K Financial Statement

#000092011222000054 Filed on February 24, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HTLF
HEARTLAND FINANCIAL USA INC Stock $htlf